@inproceedings{Oetsch, author = {{\"O}tsch, Silke}, title = {EXPLAINING JUNKSPACE}, editor = {Faschingeder, Kristian and Jormakka, Kari and Korrek, Norbert and Pfeifer, Olaf and Zimmermann, Gerd}, publisher = {Verlag der Bauhaus-Universit{\"a}t}, address = {Weimar}, organization = {Bauhaus-Universit{\"a}t Weimar}, isbn = {978-3-86068-417-7}, doi = {10.25643/bauhaus-universitaet.3067}, url = {http://nbn-resolving.de/urn:nbn:de:gbv:wim2-20170329-30676}, pages = {8}, abstract = {Dr. Silke {\"O}tsch is currently working on a research project on the role of architects as intermediaries in financialization founded by the Austrian Research Found (FWF) at the Department of Sociology at the University of Innsbruck. She worked as scientific employee at the Institute of Construction and Design at the Innsbruck University, as lecturer at the Institute for Architecture Theory at the University of Innsbruck (Austria), in the architectural offices of Arets Architekten in Maastricht as well as Haid und Partner in N{\"u}rnberg and for Attac Germany. Silke {\"O}tsch received her doctoral degree at the Bauhaus-University Weimar and studied architecture in Weimar and Paris. She published books in the field of architecture theory with the title "Stripping las Vegas" (with K. Jaschke) and "{\"U}berw{\"a}ltigen und Schmeicheln", and articels in the review GAM and others, and published in the field of political economy, among others the book "Das Casino schließen" (together with T. Sauer and P. Wahl) on the financial crisis and "R{\"a}ume der Offshore-Welt" (together with Celia Di Pauli), which is a publication on concrete spaces of tax havens and offshore centres in Europe and their implications. Her main research interest is globalization and financial architecture.}, subject = {Architekturtheorie}, language = {en} } @inproceedings{Oestman1997, author = {{\"O}stman, L.}, title = {Knowledge Elicitation through a Pragmatic Inquiry}, doi = {10.25643/bauhaus-universitaet.454}, url = {http://nbn-resolving.de/urn:nbn:de:gbv:wim2-20111215-4547}, year = {1997}, abstract = {This is a paper about knowledge in design and how to elicit knowledge from design processes. The paper is a preparation for an empirical study of interaction in the design process. Reasonings of three authors - Sch{\"o}n, Broadbent and Lundequist - on design processes is presented. They all have a pragmatic perspective in common, and regard the process as an activity without a definite form. Design is seen as an activity of creating models of forms and shapes, by addressing expert knowledge ­ in a dialogic way ­ to problematic situations. Due to the pragmatic approach I find the pragmatist Dewey´s understanding of knowledge and elecitation of knowledge appropiate for studying design processes. According to him it is possible to build up objectified descriptions of experiences, also of such, which are based on experiences of emotional and intuitive nature. There need not be a definite border, which separates tacit knowledge from explicit knowledge - when it comes to the question of the possibility of verbal descriptions. Tacit knowledge is possible to articulate within pragmatic thinking. The conclusion is, that it is possible to study the tacit knowledge of design processes, and get some qualitative insights useful for theory building. A study of design processes can look at three different forms of knowledge. It appears as a pre­cognitive understanding of the design situation, as integrated in the design activity - seeing the situation as something known - and in the process of creating something new.}, subject = {Entwurf}, language = {en} } @inproceedings{ZwoelferThomasSchinketal.2004, author = {Zw{\"o}lfer, Michael and Thomas, Peter and Schink, Claus-J{\"u}rgen and Koch, Volker}, title = {Life cycle optimized system solutions for densified housing with massive wood technology}, doi = {10.25643/bauhaus-universitaet.98}, url = {http://nbn-resolving.de/urn:nbn:de:gbv:wim2-20111215-980}, year = {2004}, abstract = {The objective of the joint project 'Life cycle optimised system solutions for densified housing with massive wood technology', short form Basys, was the development and application of an open building system for sustainable construction in a virtual enterprise. Four partners coming from building economy and a university institute developed the building system in a comprehensive planning process. By applying massive wood technology, most requirements of densified housing can be met and individual buildings can be produced on demand.}, subject = {Lebenszyklus }, language = {en} } @inproceedings{ZolotovAkimovSidorov, author = {Zolotov, Alexander B. and Akimov, Pavel and Sidorov, Vladimir}, title = {DISCRETE-CONTINUAL BOUNDARY ELEMENT METHODS OF ANALYSIS FOR TWO-DIMENSIONAL AND THREE-DIMENSIONAL STRUCTURES}, editor = {G{\"u}rlebeck, Klaus and K{\"o}nke, Carsten}, organization = {Bauhaus-Universit{\"a}t Weimar}, doi = {10.25643/bauhaus-universitaet.3041}, url = {http://nbn-resolving.de/urn:nbn:de:gbv:wim2-20170327-30419}, pages = {22}, abstract = {The aim of this paper is to present so-called discrete-continual boundary element method (DCBEM) of structural analysis. Its field of application comprises buildings constructions, structures and also parts and components for the residential, commercial and un-inhabitant structures with invariability of physical and geometrical parameters in some dimensions. We should mention here in particular such objects as beams, thin-walled bars, strip foundations, plates, shells, deep beams, high-rise buildings, extensional buildings, pipelines, rails, dams and others. DCBEM comes under group of semianalytical methods. Semianalytical formulations are contemporary mathematical models which currently becoming available for realization due to substantial speed-up of computer productivity. DCBEM is based on the theory of the pseudodifferential boundary equations. Corresponding pseudodifferential operators are discretely approximated using Fourier analysis or wavelet analysis. The main DCBEM advantages against the other methods of the numerical analysis is a double reduction in dimension of the problem (discrete numerical division applied not to the full region of the interest but only to the boundary of the region cross section, as a matter of fact one is solving an one-dimensional problem with the finite step on the boundary area of the region), one has opportunities to carrying out very detailed analysis of the specific chosen zones, simplified initial data preparation, simplistic and adaptive algorithms. There are two methods to define and conduct DCBEM analysis developed - indirect (IDCBEM) and direct (DDCBEM), thus indirect like in boundary element method (BEM) applied and used little bit more than direct.}, subject = {Architektur }, language = {en} } @inproceedings{ZolotovAkimov2003, author = {Zolotov, Alexander B. and Akimov, Pavel}, title = {Discrete-continual Finite Element Method of Analysis for Three-dimensional Curvilinear Structures}, doi = {10.25643/bauhaus-universitaet.384}, url = {http://nbn-resolving.de/urn:nbn:de:gbv:wim2-20111215-3848}, year = {2003}, abstract = {This paper is devoted to discrete-continual finite element method (DCFEM) of analysis for three-dimensional curvilinear structures. Operational and variational formulations of the problem in the ring coordinate system are presented. The discrete-continual design model for structures with constant physical and geometrical parameters in longitudinal direction is offered on the basis of so-called curvilinear discrete-continual finite elements. Element coordinate system, approximation of nodal unknowns, construction of element nodal load vector are under consideration. Element system of differential equations is formulated with use of special generalized block-structured stiffness matrix of discrete-continual finite element. Local differential relations are formulated. Resultant multipoint boundary problem for system of ordinary differential equations is given. Method of analytical solution of multipoint boundary problems in structural analysis is offered as well. Its major peculiarities include universality, computer-oriented algorithm involving theory of distributions, computational stability, optimal conditionality of resultant systems, partial Jordan decomposition of matrix of coefficients, eliminating necessity of calculation of root vectors. Brief information concerning developed software is provided.}, subject = {Raumtragwerk}, language = {de} } @inproceedings{ZollerMaltretPoutrain1997, author = {Zoller, J. and Maltret, J.-L. and Poutrain, K.}, title = {Models generation : from urban simulation to virtual reality}, doi = {10.25643/bauhaus-universitaet.449}, url = {http://nbn-resolving.de/urn:nbn:de:gbv:wim2-20111215-4498}, year = {1997}, abstract = {The aim of researches conducted within gamsau about urban simulation, in particular Remus project, is to allow rapid modeling of large and regular urban zones, for purpose of interactive navigation (like VRML) or for realistic rendering (ray-tracing methods). One of problems to be solved in this context is the multiplicity of data formats : inputs come from different sources, and outputs are for heterogeneous systems of visualization. Typically CSG and boundary representation must be generated, treated and converted during building of models. Furthermore, the generated models can be more or less refined, depending on requests and type of use. This paper describes the general context of data models conversion, problems concerning levels of detail and implementation done in Remus, based on object oriented approach.}, subject = {Stadtplanung}, language = {en} } @inproceedings{ZimmermannBartels, author = {Zimmermann, J{\"u}rgen and Bartels, Jan-Hendrik}, title = {TREE-BASED METHODS FOR RESOURCE INVESTMENT AND RESOURCE LEVELLING PROBLEMS}, editor = {G{\"u}rlebeck, Klaus and K{\"o}nke, Carsten}, organization = {Bauhaus-Universit{\"a}t Weimar}, doi = {10.25643/bauhaus-universitaet.3040}, url = {http://nbn-resolving.de/urn:nbn:de:gbv:wim2-20170327-30405}, pages = {6}, abstract = {The execution of project activities generally requires the use of (renewable) resources like machines, equipment or manpower. The resource allocation problem consists in assigning time intervals to the execution of the project activities while taking into account temporal constraints between activities emanating from technological or organizational requirements and costs incurred by the resource allocation. If the total procurement cost of the different renewable resources has to be minimized we speak of a resource investment problem. If the cost depends on the smoothness of the resource utilization over time the underlying problem is called a resource levelling problem. In this paper we consider a new tree-based enumeration method for solving resource investment and resource levelling problems exploiting some fundamental properties of spanning trees. The enumeration scheme is embedded in a branch-and-bound procedure using a workload-based lower bound and a depth first search. Preliminary computational results show that the proposed procedure is promising for instances with up to 30 activities.}, subject = {Architektur }, language = {en} } @inproceedings{Zimmermann2003, author = {Zimmermann, J{\"u}rgen}, title = {Modelle und Verfahren zur Planung von langfristigen Bauprojekten unter Kapitalwertgesichtspunkten}, doi = {10.25643/bauhaus-universitaet.383}, url = {http://nbn-resolving.de/urn:nbn:de:gbv:wim2-20111215-3837}, year = {2003}, abstract = {Langfristige Bauprojekte stellen sowohl aus technischer Sicht als auch unter Planungsgesichtspunkten {\"u}beraus komplexe Herausforderungen dar. Den laufenden Auszahlungen f{\"u}r L{\"o}hne, Materialien und fremdbezogene Dienstleistungen stehen dabei erst nach einiger Zeit Fortschrittszahlungen f{\"u}r abgeschlossene Teilprojekte gegen{\"u}ber. Die Durchf{\"u}hrung eines solchen Projekts kann mithin als Investition angesehen werden. Im Gegensatz zu herk{\"o}mmlichen Investitionen liegen bei Investitionsprojekten die Zeitpunkte der Ein- und Auszahlungen nicht fest, sondern sind Gegenstand der Planung. Zur L{\"o}sung des Annahme- bzw. Auswahlproblems bei Investitionsprojekten unter Sicherheit erfreut sich die Kapitalwertmethode breiter Zustimmung. Nach einer Betrachtung bekannter Ans{\"a}tze zur Maximierung des Kapitalwerts von Investitionsprojekten unter Annahme eines vollkommenen Kapitalmarktes wird aufgezeigt, wie das vorgestellte Modell zur Kapitalwertmaximierung f{\"u}r den Fall beschr{\"a}nkt verf{\"u}gbarer Ressourcen bzw. eines beschr{\"a}nkten Kreditrahmens angepasst werden kann. Die Bewertung von Investitionsprojekten auf Grundlage des optimalen Projektkapitalwerts setzt die Kenntnis des anzuwendenden Kalkulationszinsfußes und der maximalen Projektdauer voraus. Da diese Gr{\"o}ßen a priori nicht bekannt sind, entwickeln wir ein Verfahren zur Bestimmung des Kapitalwerts von Investitionsprojekten als Funktion des Kalkulationszinsfußes und der maximalen Projektdauer. Abschließend zeigen wir, wie die erzielten Resultate zur Entscheidungsunterst{\"u}tzung eines Bauunternehmers genutzt werden k{\"o}nnen.}, subject = {Investitionsplanung}, language = {de} } @inproceedings{Zimmermann, author = {Zimmermann, Gerd}, title = {DAS KOLLOQUIUM}, editor = {Faschingeder, Kristian and Jormakka, Kari and Korrek, Norbert and Pfeifer, Olaf and Zimmermann, Gerd}, publisher = {Verlag der Bauhaus-Universit{\"a}t}, address = {Weimar}, organization = {Bauhaus-Universit{\"a}t Weimar}, isbn = {978-3-86068-417-7}, doi = {10.25643/bauhaus-universitaet.3042}, url = {http://nbn-resolving.de/urn:nbn:de:gbv:wim2-20170329-30428}, pages = {6}, abstract = {Geb.1946 in Luckenwalde, nach dem Studium der Architektur in Weimar Promotion 1974 auf dem Gebiet der Architekturtheorie, 1973 bis 1980 Abteilung Theorie und Geschichte der Architektur am Institut f{\"u}r St{\"a}dtebau und Architektur der Bauakademie in Berlin. Arbeiten zur Architekturpsychologie und Architektursemiotik sowie Beitr{\"a}ge zur empirischen Wirkungsforschung in der Architektur. Ab 1980 Lehrt{\"a}tigkeit an der Hochschule f{\"u}r Architektur und Bauwesen (HAB) Weimar. 1992 Berufung zum Universit{\"a}tsprofessor an der HAB f{\"u}r das Fach „Entwerfen und Architekturtheorie", im gleichen Jahr Wahl zum Rektor der Hochschule, 1996 Wiederwahl f{\"u}r weitere vier Jahre. Publikationen zur Architekturtheorie, Konzeption und Veranstaltung der Internationalen Bauhaus-Kolloquien, internationale Programme mit der WASEDA Universit{\"a}t Tokyo, dem IIT Chicago, seit Mitte der 90er Jahre j{\"a}hrliche Entwurfsakademie in Rom. 2003 Wahl zum Dekan der Fakult{\"a}t Architektur und 2004 erneute Wahl zum Rektor der Bauhaus-Universit{\"a}t Weimar.}, subject = {Architekturtheorie}, language = {de} } @inproceedings{Zimmermann2000, author = {Zimmermann, Gerd}, title = {Neue Welt, Architektur und die Utopien der Globalisierung}, doi = {10.25643/bauhaus-universitaet.1218}, url = {http://nbn-resolving.de/urn:nbn:de:gbv:wim2-20111215-12182}, year = {2000}, abstract = {Wissenschaftliches Kolloquium vom 14. bis 16. Oktober 1999 in Weimar an der Bauhaus-Universit{\"a}t zum Thema: ‚global village - Perspektiven der Architektur'}, subject = {Architektur}, language = {de} } @inproceedings{Zentner2003, author = {Zentner, Frank}, title = {Einsatz internetbasierter Projektplattformen im Bereich der Bauausf{\"u}hrung - "Digitales Bautagebuch"}, doi = {10.25643/bauhaus-universitaet.382}, url = {http://nbn-resolving.de/urn:nbn:de:gbv:wim2-20111215-3822}, year = {2003}, abstract = {Der Einsatz internetbasierter Projektplattformen in der Bauausf{\"u}hrung wurde bisher kaum thematisiert. Die typischen Vorteile des Einsatzes solcher Werkzeuge, wie etwa die Unterst{\"u}tzung kooperativer, geographisch und zeitlich verteilter Prozesse, scheinen f{\"u}r diesen Einsatzbereich nicht so offensichtlich zu sein wie f{\"u}r den Bereich der Geb{\"a}udeplanung. Vor dem Hintergrund der anhaltend problematischen Situation der Bauwirtschaft und der Tatsache, dass im Bereich der Bauausf{\"u}hrung oftmals die wesentlichen Ursachen f{\"u}r einen unplanm{\"a}ßigen Ablauf von Bauprojekten oder ein Verfehlen von Kosten-, Termin- oder Qualit{\"a}tszielen zu finden sind, kommt diesen Anwendungen eine große Bedeutung zu. Im Rahmen eines gr{\"o}ßeren Forschungsprojektes des BMWi (TK3 GIT Siegen / Projekttr{\"a}ger PTJ-BEO) wurde unter dem Arbeitstitel >Digitales Bautagebuch< ein ausf{\"u}hrungsorientiertes Modul f{\"u}r eine schon in den Planungsphasen des Projektes eingesetzte Projektplattform entwickelt. Dabei wurde projektbegleitend eine Umgebung implementiert, welche sowohl die Bauleitung bei ihrer t{\"a}glichen Arbeit unterst{\"u}tzt als auch Entscheidungstr{\"a}gern und anderen Projektbeteiligten einen schnellen {\"U}berblick {\"u}ber den Stand der Arbeiten erm{\"o}glicht. Dieser Beitrag setzt sich mit dem Einsatz internetbasierter Projektplattformen im Bereich der Bauausf{\"u}hrung auseinander und beschreibt deren M{\"o}glichkeiten unter Einbringung der Erfahrungen aus der Anwendung im Bauprojekt TK3 GIT Siegen.}, subject = {Digitalisierung}, language = {de} } @inproceedings{ZeiserDahmenRohwedderetal., author = {Zeiser, Andreas and Dahmen, W. and Rohwedder, T. and Schneider, R.}, title = {ADAPTIVE EIGENVALUE COMPUTATION FOR ELLIPTIC OPERATORS}, editor = {G{\"u}rlebeck, Klaus and K{\"o}nke, Carsten}, organization = {Bauhaus-Universit{\"a}t Weimar}, issn = {1611-4086}, doi = {10.25643/bauhaus-universitaet.2904}, url = {http://nbn-resolving.de/urn:nbn:de:gbv:wim2-20170314-29042}, pages = {14}, abstract = {We present recent developments of adaptive wavelet solvers for elliptic eigenvalue problems. We describe the underlying abstract iteration scheme of the preconditioned perturbed iteration. We apply the iteration to a simple model problem in order to identify the main ideas which a numerical realization of the abstract scheme is based upon. This indicates how these concepts carry over to wavelet discretizations. Finally we present numerical results for the Poisson eigenvalue problem on an L-shaped domain.}, subject = {Angewandte Informatik}, language = {en} } @inproceedings{ZavadskasPeldschus2003, author = {Zavadskas, Edmundas Kazimieras and Peldschus, Friedel}, title = {Mehrkriterielle Entscheidungen im Bauwesen}, doi = {10.25643/bauhaus-universitaet.381}, url = {http://nbn-resolving.de/urn:nbn:de:gbv:wim2-20111215-3812}, year = {2003}, abstract = {Die Technische Gediminas Universit{\"a}t Vilnius, Lehrstuhl Technologie der Bauproduktion und die Hochschule f{\"u}r Technik, Wirtschaft und Kultur Leipzig, Lehrbereich Baubetrieb, haben sich seit mehreren Jahren mit den Problemen der mehrkriteriellen Entscheidung im Bauwesen befasst. Auf Grund der unterschiedlichen Herangehensweise werden f{\"u}r numerische L{\"o}sungen auch unterschiedliche Methoden benutzt. Das gemeinsame Ziel war immer eine optimale Variantenauswahl f{\"u}r baubetriebliche Produktionsprozesse. Zur Unterst{\"u}tzung der numerischen L{\"o}sungen wurde gemeinsam das EDV-Programm LEVI entwickelt, welches heute wahlweise als deutschsprachige oder englischsprachige Version genutzt werden kann. Die Beschreibung der zu l{\"o}senden Probleme erfolgt in Form einer Matrix. Diese enth{\"a}lt die Varianten (Zeilen) und die Kriterien (Spalten). Dabei sind die Varianten Ausdruck einer Menge real existierender Situationen f{\"u}r ein Problem. Alle betrachteten Varianten werden durch die gleichen Kriterien bewertet. Da die Kriterien gew{\"o}hnlich unterschiedliche Dimensionen besitzen, ist ihre Wirksamkeit nicht direkt miteinander vergleichbar. Eine Ausnahme bildet die Bewertung mit einem Punktsystem. Diese beinhaltet jedoch in hohem Maße subjektive Einfl{\"u}sse und sollte daher nur in Ausnahmef{\"a}llen benutzt werden. Um die Schwierigkeiten der unterschiedlichen Dimensionen f{\"u}r die verschiedenen Kriterien zu umgehen, wird das Verh{\"a}ltnis zum jeweiligen Optimalwert gebildet. Damit werden gleichzeitig die Diskrepanzen, die durch die unterschiedlichen Gr{\"o}ßenordnungen der Optimalwerte entstehen, beseitigt. F{\"u}r das Verh{\"a}ltnis des Funktionswertes zum Optimalwert existieren unterschiedliche Auffassungen. Es muss an dieser Stelle bemerkt werden, dass mit der Entscheidung {\"u}ber die Art des Verh{\"a}ltnisses zum Optimalwert auch die L{\"o}sung beeinflusst werden kann. Untersuchungen {\"u}ber solche Auswirkungen sind noch nicht abgeschlossen, so dass im Augenblick nur vorl{\"a}ufige Ergebnisse genannt werden k{\"o}nnen. Von den bekannten Transformationsmethoden benutzen die Verfasser die vektorwertige Transformation, die lineare Transformation, die relative Abweichung und eine nichtlineare Transformation. Dadurch erfolgt eine Abbildung auf das Intervall [1 ; 0 ] bzw. [ 1 ; ~ 0 ]. F{\"u}r die L{\"o}sungsmethoden erfolgt eine Unterscheidung in eine einseitige oder zweiseitige Fragestellungen. W{\"a}hrend die einseitige Fragestellung auf die Bestimmung einer Rangfolge orientiert, berechnet die zweiseitige Fragestellung ein spieltheoretisches Gleichgewicht als Ausdruck eines rationalen Verhaltens von zwei entgegengesetzten Interessengruppen und L{\"o}sungen f{\"u}r Spiele gegen die Natur. In Anlehnung an das statische Gleichgewicht messen die Verfasser dem spieltheoretischen Gleichgewicht f{\"u}r die Dimensionierung baubetrieblicher Produktionsprozesse eine besondere Bedeutung zu. Bisherige Anwendungen konzentrieren sich auf die optimale Auswahl im Wohnungsbau, die Auswahl von Konstruktionsvarianten, die Auswahl von Montagevarianten, den Einsatz von W{\"a}rmed{\"a}mmstoffen u.a. F{\"u}r die Dimensionierung von Produktionsprozessen mit Serienproduktion wurde eine L{\"o}sung mit einer gewichteten Matrix vorgeschlagen.}, subject = {Bauwesen}, language = {de} } @inproceedings{ZarliStorerKazi2004, author = {Zarli, Alain and Storer, Graham and Kazi, Abdul Samad (Sami)}, title = {Building a Better Future: Major Results from the ICCI Cluster Project}, doi = {10.25643/bauhaus-universitaet.199}, url = {http://nbn-resolving.de/urn:nbn:de:gbv:wim2-20111215-1994}, year = {2004}, abstract = {To support research in the building sector and in order to help it move towards a new digital economy, the European Commission under the 5th Framework initiative, especially the IST programme, funded various RTD projects. The opportunity to bring these IST projects together was acknowledged so that stronger links can be created under a clustering umbrella and that, moreover, links of those projects with their RTD environment could be facilitated. This has been the objective of work carried out within the ICCI (IST-2001-33022) Cluster project. This paper introduces the main aims and objectives of the project, and then presents its principal outcomes. In a second part, it synthesises the underlying concepts, technology and tools that will make ICT-based Construction a reality in a near future, and gives recommended actions for the industry, the EC and the Construction ICT R\&D in Europe, giving some benefit of this project experience to the three communities.}, subject = {Forschung}, language = {en} } @inproceedings{ZangSommer, author = {Zang, Di and Sommer, G.}, title = {ALGEBRAICALLY EXTENDED 2D IMAGE REPRESENTATION}, editor = {G{\"u}rlebeck, Klaus and K{\"o}nke, Carsten}, organization = {Bauhaus-Universit{\"a}t Weimar}, doi = {10.25643/bauhaus-universitaet.3039}, url = {http://nbn-resolving.de/urn:nbn:de:gbv:wim2-20170327-30396}, pages = {10}, abstract = {We present an algebraically extended 2D image representation in this paper. In order to obtain more degrees of freedom, a 2D image is embedded into a certain geometric algebra. Combining methods of differential geometry, tensor algebra, monogenic signal and quadrature filter, the novel 2D image representation can be derived as the monogenic extension of a curvature tensor. The 2D spherical harmonics are employed as basis functions to construct the algebraically extended 2D image representation. From this representation, the monogenic signal and the monogenic curvature signal for modeling intrinsically one and two dimensional (i1D/i2D) structures are obtained as special cases. Local features of amplitude, phase and orientation can be extracted at the same time in this unique framework. Compared with the related work, our approach has the advantage of simultaneous estimation of local phase and orientation. The main contribution is the rotationally invariant phase estimation, which enables phase-based processing in many computer vision tasks.}, subject = {Architektur }, language = {en} } @inproceedings{Zaneldin2004, author = {Zaneldin, Essam}, title = {Investigate the Impact of Different Resource Allocation Strategies on the Design of Building Projects Using Simulation}, doi = {10.25643/bauhaus-universitaet.165}, url = {http://nbn-resolving.de/urn:nbn:de:gbv:wim2-20111215-1658}, year = {2004}, abstract = {The design of building projects involves several types of resources such as architects, structural engineers, mechanical engineers, electrical engineers, and draftsmen, among others. For design firms to stay in business in this very competitive market, they need to manage their resources in a way that improves productivity and cost effectiveness. This task, however, is not simple and requires thorough analysis of process-level operations, resource use, and productivity. Typically, these operational aspects are the responsibility of the design office manager who assigns available resources to the different design projects to save time and lower design expenses. It is noted that limited studies have been carried out in the literature to model overall organizational operations and behavioral aspects, particularly in firms specialized in the design of building projects. In an effort to simplify the modeling process, a simplified modeling and simulation tool is used in this research. A simulation model representing an actual design office was developed assuming that the office performs designs for small, medium, and large size building projects. The developed model was used to simulate several alternatives and examine various resource assignment strategies. The simulation was conducted over ten years and the resulting productivity and income was measured.}, subject = {Baubetrieb}, language = {en} } @inproceedings{Zahm2003, author = {Zahm, Petra}, title = {Der Ausschuss f{\"u}r Sicherheit und Gesundheitsschutz auf Baustellen - Praxiserfahrungen bei der {\"U}berwachung der Baustellenverordnung aus der Sicht der s{\"a}chsischen Arbeitsschutzverwaltung}, doi = {10.25643/bauhaus-universitaet.468}, url = {http://nbn-resolving.de/urn:nbn:de:gbv:wim2-20111215-4689}, year = {2003}, abstract = {Der Ausschuss f{\"u}r Sicherheit und Gesundheitsschutz auf Baustellen; Praxiserfahrungen bei der {\"U}berwachung der Baustellenverordnung aus der Sicht der s{\"a}chsischen Arbeitsschutzverwaltung}, subject = {Arbeitsschutz}, language = {de} } @inproceedings{Yatsuka2000, author = {Yatsuka, Hajime}, title = {Global standard?}, doi = {10.25643/bauhaus-universitaet.1207}, url = {http://nbn-resolving.de/urn:nbn:de:gbv:wim2-20111215-12071}, year = {2000}, abstract = {Wissenschaftliches Kolloquium vom 14. bis 16. Oktober 1999 in Weimar an der Bauhaus-Universit{\"a}t zum Thema: ‚global village - Perspektiven der Architektur'}, subject = {Architektur}, language = {en} } @inproceedings{Yansong, author = {Yansong, Ma}, title = {DESIGNING THE REALIZABLE UTOPIA}, editor = {Faschingeder, Kristian and Jormakka, Kari and Korrek, Norbert and Pfeifer, Olaf and Zimmermann, Gerd}, publisher = {Verlag der Bauhaus-Universit{\"a}t}, address = {Weimar}, organization = {MAD Architects}, isbn = {978-3-86068-417-7}, doi = {10.25643/bauhaus-universitaet.3059}, url = {http://nbn-resolving.de/urn:nbn:de:gbv:wim2-20170329-30598}, pages = {7}, abstract = {MAD is a Beijing-based architectural design studio. In their work, they are examining and developing a unique concept of futurism through current theoretical practice in architectural design, landscape design, and urban planning. In 2006, MAD was awarded the Architectural League Young Architects Forum Award. In the same year, MAD was shown at the 'MAD in China' exhibition in Venice during the Architecture Bienniale, and the 'MAD Under Construction' exhibition at the Tokyo Gallery in Beijing. MAD's conceptual proposal, Super Star - A mobile China Town was exhibited in the Uneternal City of the 11th Architecture Biennale in Venice. Ma Yansong received his Master of Architecture from the Yale University School of Architecture in 2002. Prior to founding MAD in 2004, Mr. Ma worked as a project designer with Zaha Hadid Architects and Eisenman Architects. He also taught architecture at the Central Academy of Fine Arts in Beijing. In 2008, one of his built works, Hongluo Clubhouse, was nominated as one of the 100 designs by the London Design Museum. He was also nominated as one of the 20 most influential young architects today by ICON.}, subject = {Architekturtheorie}, language = {en} } @inproceedings{YamabeKawamuraTani2004, author = {Yamabe, Yuichiro and Kawamura, Hiroshi and Tani, Akinori}, title = {Optimal Design for Recurrent Architecture Network Harmonized with Circulation-type Societies by Applying Genetic Algorithms to Multiagent Model}, doi = {10.25643/bauhaus-universitaet.189}, url = {http://nbn-resolving.de/urn:nbn:de:gbv:wim2-20111215-1892}, year = {2004}, abstract = {In this paper, a circulation-type society is expressed by recurrent architecture network described with multi-agent model which consists of the following agents: user, builder, reuse maker, fabricator, waste disposer, material maker and earth bank (see Fig.1). Structural members, materials, resources and monies move among these agents. Each agent has its own rules and aims, regarding structural damages, lifetime, cost reduction, numbers of structural members and structural systems. Reasonable prices of members (fresh, reused, recycled and disposed) can be optimized by GAs in this system considering equal distribution of monies among agents.}, subject = {Mehragentensystem}, language = {en} } @inproceedings{YahiaouiHensenSoethout2004, author = {Yahiaoui, Azzedine and Hensen, Jan and Soethout, Luc}, title = {Developing CORBA-based distributed control and building performance environments by run-time coupling}, doi = {10.25643/bauhaus-universitaet.134}, url = {http://nbn-resolving.de/urn:nbn:de:gbv:wim2-20111215-1347}, year = {2004}, abstract = {Communication software and distributed applications for control and building performance simulation software must be reliable, efficient, flexible, and reusable. This paper reports on progress of a project, which aims to achieve better integrated building and systems control modeling in building performance simulation by run-time coupling of distributed computer programs. These requirements motivate the use of the Common Object Request Broker Architecture (CORBA), which offers sufficient advantage than communication within simple abstraction. However, set up highly available applications with CORBA is hard. Neither control modeling software nor building performance environments have simple interface with CORBA objects. Therefore, this paper describes an architectural solution to distributed control and building performance software tools with CORBA objects. Then, it explains how much the developement of CORBA based distributed building control simulation applications is difficult. The paper finishes by giving some recommendations.}, subject = {Ingenieurbau}, language = {en} } @inproceedings{XieIssaO'Brien2004, author = {Xie, Haiyan and Issa, Raja and O'Brien, William}, title = {Structure of a Formal User Model for Construction Information Retrieval}, doi = {10.25643/bauhaus-universitaet.129}, url = {http://nbn-resolving.de/urn:nbn:de:gbv:wim2-20111215-1296}, year = {2004}, abstract = {Information science researchers and developers have spent many years addressing the problem of retrieving the exact information needed and using it for analysis purposes. In informationseeking dialogues, the user, i.e. construction project manager or supplier, often asks questions about specific aspects of the tasks they want to perform. But most of the time it is difficult for the software systems to unambiguously understand their overall intentions. The existence of information tunnels (Tannenbaum 2002) aggravates this phenomenon. This study includes a detailed case study of the material management process in the construction industry. Based on this case study, the structure of a formal user model for information retrieval in construction management is proposed. This prototype user model will be incorporated into the system design for construction information management and retrieval. This information retrieval system is a user-centered product based on the development of a user configurable visitor mechanism for managing and retrieving project information without worrying too much about the underlying data structure of the database system. An executable UML model combined with OODB is used to reduce the ambiguity in the user's intentions and to achieve user satisfaction.}, subject = {Bauwerk}, language = {en} } @inproceedings{WudtkeWerner, author = {Wudtke, Idna and Werner, Frank}, title = {MODELLING OF MATERIAL PHENOMENA OF STEEL IN CONSTITUTIVE RELATIONS IN CONTEXT OF WELDING}, editor = {G{\"u}rlebeck, Klaus and K{\"o}nke, Carsten}, organization = {Bauhaus-Universit{\"a}t Weimar}, issn = {1611-4086}, doi = {10.25643/bauhaus-universitaet.2903}, url = {http://nbn-resolving.de/urn:nbn:de:gbv:wim2-20170314-29032}, pages = {16}, abstract = {The application of partly decoupled approach by means of continuum mechanics facilitates the calculation of structural responses due to welding. The numerical results demonstrate the ability of a qualitative prediction of welded connections. As it is intended to integrate the local effects of a joint in structural analysis of steel constructions, it is necessary to meet higher approaches towards quality. The wide array of material parameters are presented, which are affecting the thermal, metallurgical and mechanical behavior, and which have to be identified. For that purpose further investigations are necessary to analyze the sensitivity of the models towards different material properties. The experimental determination of every material parameter is not possible due to the extraordinary laborious efforts needed. Besides that, experimentally identified parameters can be applied only for the tested steel quality for measured temperature-time regimes. For that reason alternative approaches for identification of material parameters, such as optimization strategies, have to be applied. After a definition of material parameters a quantitative prediction of welded connections will also be possible. Numerical results show the effect of phase transformation, activated by welding process, on residual stress state. As these phenomena occur in local areas in the range of crystal and grain sizes, the description of microscopic phenomena and their propagation on a macroscopic level due to approaches of homogenization might be expedient. Nevertheless, one should bear in mind, the increasing number of material parameters as well as the complexity of their experimental determination. Thus the microscopic approach should always be investigated under the scope of ability and efficiency of a required prediction. Under certain circumstances a step backwards, adopting a phenomenological approach, also can be beneficial.}, subject = {Angewandte Informatik}, language = {en} } @inproceedings{Wudtke, author = {Wudtke, Idna}, title = {CONSTITUTIVE MODELING OF CRYSTALLINE MATERIALS WITH TEXTURE CHARACTERISTICS}, series = {Digital Proceedings, International Conference on the Applications of Computer Science and Mathematics in Architecture and Civil Engineering : July 04 - 06 2012, Bauhaus-University Weimar}, booktitle = {Digital Proceedings, International Conference on the Applications of Computer Science and Mathematics in Architecture and Civil Engineering : July 04 - 06 2012, Bauhaus-University Weimar}, editor = {G{\"u}rlebeck, Klaus and Lahmer, Tom and Werner, Frank}, organization = {Bauhaus-Universit{\"a}t Weimar}, issn = {1611-4086}, doi = {10.25643/bauhaus-universitaet.2791}, url = {http://nbn-resolving.de/urn:nbn:de:gbv:wim2-20170314-27910}, pages = {9}, abstract = {The analysis of the response of complex structural systems requires the description of the material constitutive relations by means of an appropriate material model. The level of abstraction of such model may strongly affect the quality of the prognosis of the whole structure. In context to this fact, it is necessary to describe the material in a convenient sense as exact but as simple as possible. All material phenomena of crystalline materials e.g. steel, affecting the behavior of the structure, rely on physical effects which are interacting over spatial scales from subatomic to macroscopic range. Nevertheless, if the material is microscopically heterogenic, it might be appropriate to use phenomenological models for the purpose of civil engineering. Although constantly applied, these models are insufficient for steel materials with microscopic characteristics such as texture, typically occurring in hot rolled steel members or heat affected zones of welded joints. Hence, texture is manifested in crystalline materials as a regular crystallographic structure and crystallite orientation, influencing macroscopic material properties. The analysis of structural response of material with texture (e.g. rolled steel or heat affected zone of a welded joint) obliges the extension of the phenomenological material description of macroscopic scale by means of microscopic information. This paper introduces an enrichment approach for material models based on a hierarchical multiscale methodology. This has been done by describing the grain texture on a mesoscopic scale and coupling it with macroscopic constitutive relations by means of homogenization. Due to a variety of available homogenization methods, the question of an assessment of coupling quality arises. The applicability of the method and the effect of the coupling method on the reliability of the response are presented on an example.}, subject = {Angewandte Informatik}, language = {en} } @inproceedings{WoywodeWeikert2001, author = {Woywode, Norbert and Weikert, Fritz}, title = {Qualit{\"a}ts- und Sicherheitsprobleme in der Schweißtechnik}, doi = {10.25643/bauhaus-universitaet.400}, url = {http://nbn-resolving.de/urn:nbn:de:gbv:wim2-20111215-4005}, year = {2001}, abstract = {Im Beitrag wird belegt, dass es viele Gemeinsamkeiten von Qualit{\"a}tsverletzungen und Verst{\"o}ßen gegen die Sicherheitsvorschriften gibt. An Hand einiger Beispiele wird gezeigt, wie sich durch - Schwachstellen in der technischen und technologischen Vorbereitung, - M{\"a}ngel im Gesundheits-, Arbeits- und Brandschutz, - ungen{\"u}gende Qualifikation sowie subjektives Fehlverhalten von Arbeitern, - Material-, Fertigungs- und Konstruktionsfehler Unf{\"a}lle, Schadensf{\"a}lle, Gesundheitssch{\"a}den und Br{\"a}nde insbesondere beim Schweißen ereignet haben und damit die aufgezeigten Zusammenh{\"a}nge best{\"a}tigen.}, subject = {Arbeitsschutz}, language = {de} } @inproceedings{WoszczynaKaminskiMajetal., author = {Woszczyna, Anna and Kaminski, Mieczysław and Maj, Marek and Ubysz, Andrzej}, title = {ANALYSING THE INFLUENCE OF THE REINFORCED CONCRETE CHIMNEY GEOMETRY CHANGES ON THE STRESSES IN THE CHIMNEY SHAFT}, editor = {G{\"u}rlebeck, Klaus and K{\"o}nke, Carsten}, organization = {Bauhaus-Universit{\"a}t Weimar}, doi = {10.25643/bauhaus-universitaet.3038}, url = {http://nbn-resolving.de/urn:nbn:de:gbv:wim2-20170327-30388}, pages = {7}, abstract = {Analysis of the reinforced concrete chimney geometry changes and their influence on the stresses in the chimney mantle was made. All the changes were introduced to a model chimney and compared. Relations between the stresses in the mantle of the chimney and the deformations determined by the change of the chimney's vertical axis geometry were investigated. The vertical axis of chimney was described by linear function (corresponding to the real rotation of the chimney together with the foundation), and by parabolic function (corresponding to the real dislocation of the chimney under the influence of the horizontal forces - wind). The positive stress pattern in the concrete as well as the negative stress pattern in the reinforcing steel have been presented. The two cases were compared. Analysis of the stress changes in the chimney mantle depending on the modification in the thickness of the mantle (the thickness of the chimney mantle was altered in the linear or the abrupt way) was carried out. The relation between the stresses and the chimney's diameter change from the bottom to the top of the chimney was investigated. All the analyses were conducted by means of a specially developed computer program created in Mathematica environment. The program makes it also possible to control calculations and to visualize the results of the calculations at every stage of the calculation process.}, subject = {Architektur }, language = {en} } @inproceedings{WolkowiczRuthStahr, author = {Wolkowicz, Christian and Ruth, J{\"u}rgen and Stahr, Alexander}, title = {TOOL TO CHECK TOPOLOGY AND GEOMETRY FOR SPATIAL STRUCTURES ON BASIS OF THE EXTENDED MAXWELL'S RULE}, editor = {G{\"u}rlebeck, Klaus and K{\"o}nke, Carsten}, organization = {Bauhaus-Universit{\"a}t Weimar}, doi = {10.25643/bauhaus-universitaet.3037}, url = {http://nbn-resolving.de/urn:nbn:de:gbv:wim2-20170327-30370}, pages = {8}, abstract = {One of the simplest principle in the design of light-weight structures is to avoid bending. This can be achieved by dissolving girders into members acting purely in axial tension or compression. The employment of cables for the tensioned members leads to even lighter structures which are called cable-strut structures. They constitute a subclass of spatial structures. To give fast information about the general feasibility of an architectural concept employing cable-strut structures is a challenging task due to their sophisticated mechanical behavior. In this regard it is essential to control if the structure is stable and if pre-stress can be applied. This paper presents a tool using the spreadsheet software Microsoft (MS) Excel which can give such information. Therefore it is not necessary to purchase special software and the according time consuming training is much lower. The tool was developed on basis of the extended Maxwell's rule, which besides topology also considers the geometry of the structure. For this the rank of the node equilibrium matrix is crucial. Significance and determination of the rank and the implementation of the corresponding algorithms in MS Excel are described in the following. The presented tool is able to support the structural designer in an early stage of the project in finding a feasible architectural concept for cable-strut structures. As examples for the application of the software tool two special cable-strut structures, so called tensegrity structures, were examined for their mechanical behavior.}, subject = {Architektur }, language = {en} } @inproceedings{Wolff1997, author = {Wolff, Ulrich}, title = {Konzept zur rechnergest{\"u}tzten integrierten Projektsteuerung im Bauwesen}, doi = {10.25643/bauhaus-universitaet.453}, url = {http://nbn-resolving.de/urn:nbn:de:gbv:wim2-20111215-4531}, year = {1997}, abstract = {Projektsteuerung gewinnt als Aufgabenfeld bei der Realisierung von Investitionsprojekten st{\"a}ndig an Bedeutung. Zur Bew{\"a}ltigung der umfangreichen und komplizierten Aufgaben des Projektsteuerers wird zunehmend Software angeboten und genutzt. Dabei ist feststellbar, daß von einer integrierten Projektsteuerung unter Ber{\"u}cksichtigung der Kriterien Leistung, Termin und Kosten nicht gesprochen werden kann, weil wesentliche theoretische und praktische Voraussetzungen fehlen. Im Beitrag werden Defizite der praktizierten Vorgehensweise und L{\"o}sungsans{\"a}tze f{\"u}r eine integrierte rechnergest{\"u}tzte Projektsteuerung vorgestellt. Durch geeignete Formen der Projektstrukturierung und eine Kopplung auf dem Mark befindlicher Standardsoftware k{\"o}nnen geeignete L{\"o}sungen gefunden werden. Problempunkte dabei stellen die Schnittstellen zwischen den Anwenderprogrammen die Datenbeschaffung und -verwaltung sowie geeignete Verfahren zur Kostenermittlung und -verfolgung dar. Im Beitrag werden eine bereits praktizierte und eine in Entwicklung befindliche L{\"o}sung vorgestellt.}, subject = {Bauwesen}, language = {de} } @inproceedings{Wolff2006, author = {Wolff, Ulrich}, title = {Die richtige Weiterbildung f{\"u}r den systematischen Kompetenzaufbau}, doi = {10.25643/bauhaus-universitaet.848}, url = {http://nbn-resolving.de/urn:nbn:de:gbv:wim2-20111215-8480}, year = {2006}, subject = {Weimar / Bauhaus-Universit{\"a}t / Professur Baubetrieb und Bauverfahren}, language = {de} } @inproceedings{Wolff, author = {Wolff, Sebastian}, title = {NODALLY INTEGRATED FINITE ELEMENTS}, editor = {G{\"u}rlebeck, Klaus and K{\"o}nke, Carsten}, organization = {Bauhaus-Universit{\"a}t Weimar}, issn = {1611-4086}, doi = {10.25643/bauhaus-universitaet.2902}, url = {http://nbn-resolving.de/urn:nbn:de:gbv:wim2-20170314-29028}, pages = {16}, abstract = {Nodal integration of finite elements has been investigated recently. Compared with full integration it shows better convergence when applied to incompressible media, allows easier remeshing and highly reduces the number of material evaluation points thus improving efficiency. Furthermore, understanding it may help to create new integration schemes in meshless methods as well. The new integration technique requires a nodally averaged deformation gradient. For the tetrahedral element it is possible to formulate a nodal strain which passes the patch test. On the downside, it introduces non-physical low energy modes. Most of these "spurious modes" are local deformation maps of neighbouring elements. Present stabilization schemes rely on adding a stabilizing potential to the strain energy. The stabilization is discussed within this article. Its drawbacks are easily identified within numerical experiments: Nonlinear material laws are not well represented. Plastic strains may often be underestimated. Geometrically nonlinear stabilization greatly reduces computational efficiency. The article reinterpretes nodal integration in terms of imposing a nonconforming C0-continuous strain field on the structure. By doing so, the origins of the spurious modes are discussed and two methods are presented that solve this problem. First, a geometric constraint is formulated and solved using a mixed formulation of Hu-Washizu type. This assumption leads to a consistent representation of the strain energy while eliminating spurious modes. The solution is exact, but only of theoretical interest since it produces global support. Second, an integration scheme is presented that approximates the stabilization criterion. The latter leads to a highly efficient scheme. It can even be extended to other finite element types such as hexahedrals. Numerical efficiency, convergence behaviour and stability of the new method is validated using linear tetrahedral and hexahedral elements.}, subject = {Angewandte Informatik}, language = {en} } @inproceedings{Wolfert2000, author = {Wolfert, Anke}, title = {Integrierte B{\"u}ro- und Projektdatenverwaltung im Architekturb{\"u}ro}, doi = {10.25643/bauhaus-universitaet.625}, url = {http://nbn-resolving.de/urn:nbn:de:gbv:wim2-20111215-6256}, year = {2000}, abstract = {W{\"a}hrend des Entwurfs- und Herstellungsprozesses eines architektonischen Objektes wird eine Menge organisatorischer, projektbezogener Daten zusammengetragen (z.B. Namen und Adressen von Bauherren, Firmen, Architekten, Ingenieuren, Beh{\"o}rden, die Art ihrer Beteiligung, Schriftverkehr). Diese Daten werden w{\"a}hrend dieses Prozesses mehrere Male verwendet, jedoch in unterschiedlichen Zusammenh{\"a}ngen, durch unterschiedliche Nutzer und von verschiedenen Anwendungen. Demzufolge ist eine geeignete Datenmodellierung und Datenverwaltung erforderlich, die diesen Aspekten gerecht wird. Der vorliegende Beitrag beschreibt ein Programm, welches die verschiedenen Formen der Projektdaten integriert, die Adreß-, Projekt- und Dokumentenverwaltung {\"u}bernimmt, Projektinformationsdienstleistungen anbietet und B{\"u}roabl{\"a}ufe unterst{\"u}tzt.}, subject = {Projektierungsbetrieb}, language = {de} } @inproceedings{WittwerBecker, author = {Wittwer, Christof and Becker, Rainer}, title = {MODELLBASIERTE ERTRAGSKONTROLLE F{\"U}R PV ANLAGEN IN VERNETZTEN GEB{\"A}UDEN}, editor = {G{\"u}rlebeck, Klaus and K{\"o}nke, Carsten}, organization = {Bauhaus-Universit{\"a}t Weimar}, doi = {10.25643/bauhaus-universitaet.3036}, url = {http://nbn-resolving.de/urn:nbn:de:gbv:wim2-20170327-30363}, pages = {5}, abstract = {Subject of the paper is the realisation of a model based efficiency control system for PV generators using a simulation model. A standard 2-diodes model of PV generator is base of the ColSim model, which is implemented in ANSI C code for flexible code exporting. The algorithm is based on discretisized U-I characteristics, which allows the calculation of string topologies witch parallel and serial PV cells and modules. Shadowing effects can be modelled down to cell configuration using polar horizon definitions. The simulation model was ported to a real time environment, to calculate the efficiency of a PV system. Embedded System technology allows the networked operation and the integration of standard I/O devices. Futher work focus on the adaption of shadowing routine, which will be adapted to get the environment conditions from the real operation.}, subject = {Architektur }, language = {de} } @inproceedings{Wittwer2003, author = {Wittwer, Christof}, title = {ColSim - Eine modulare Simulationsumgebung zur Entwicklung von Regelungsalgorithmen f{\"u}r Embedded Systems in Energieversorgungsanlagen}, doi = {10.25643/bauhaus-universitaet.380}, url = {http://nbn-resolving.de/urn:nbn:de:gbv:wim2-20111215-3803}, year = {2003}, abstract = {Am Fraunhofer ISE wurde in den letzten Jahren die Simulationsumgebung ColSim entwickelt, die sich speziell zur Untersuchung von Regelungssystemen in Geb{\"a}udeenergieversorgungssystemen eignet. Zielsetzung des Designs ist die Umsetzung des simulationsbasierten Regelungsentwurfs, der einen unmittelbaren Einsatz der Regelungsmodule auf sog. Enbedded Systems gestattet. Das Simulationswerkzeug zeichnet sich durch die modulare offene Struktur aus, die eine flexible Erweiterung erm{\"o}glicht (vgl. TRNSYS [1]). Die Implementierung erfolgte im genormten ANSI-C Code, der einen plattform- unabh{\"a}nigen Einsatz gew{\"a}hrleistet. Entwicklungsplattform stellt derzeit ein Linux Cluster dar, als Zielplattform wurden bisher sowohl eingebettete Industrie-PCs wie auch klassische Micro- controller Boards verwendet. Die Entwurfsmethode wird anhand einer Systemregelung f{\"u}r eine solarthermische Anlage mit 120m2 Kollektorfl{\"a}che (SolarThermie2000 Anlage) demonstriert, bei der ein vernetztes Regelungssystem mit Internet-Integration zum Einsatz kommt. Das Regelungssystem verf{\"u}gt seinerseits {\"u}ber ein Betriebssystem (schlankes embedded linux system), das die Kommunikation nach aussen gestattet. Das Regelungssystem vef{\"u}gt somit {\"u}ber Klima- bzw Strahlungsdaten, die f{\"u}r den Regelungsprozess von Bedeutung sind. Die externen Informationen k{\"o}nnen einerseits zur >Einsparung< von Sensorik genutzt werden, andererseits gestatten sie den Einsatz von pr{\"a}diktiver Regelungsmethodik, um den fossilen (Nachheiz-) Energieeinsatz zu minimieren. Mit Hilfe von simulationstechnischen Systemstudien kann ein adaptives Verhalten des Regelungssystems erprobt werden, das eine selbstst{\"a}ndige Strecken- identifikation realieren kann. Beispielsweise soll beim n{\"a}her beschriebenen solarthermischen System die Totzeit bestimmt werden, die sich infolge der Verrohrung zwischen Speicher und Entladegruppe ergibt. Der Betrieb der Entlade- pumpe wird einerseits in Abh{\"a}ngigkeit der Verf{\"u}gbarkeit des Pufferwassers erfolgen, andererseits in Abh{\"a}ngigkeit des erwarteten Zapfvolumens durch den Verbraucher. Die vernetzten Regelungssysteme, die auf Basis der Simulationsmodelle ent- wickelt werden, sollen k{\"u}nftig die gesamte Energieflußanalyse des Geb{\"a}udes realisieren, wobei eine transparente Darstellung des Systemverhaltens auf Basis einer Internet Visualisierung erfolgt. Der Betreiber und Nutzer wird unmittel- bar durch die Online Dienste (SMS,Email,Fax) {\"u}ber das (fehlerhafte) Anlagen- verhalten informiert. Gerade die sensitiven regenerativen Systeme neigen durch ihre Komplexit{\"a}t zu St{\"o}rungen, die oftmals nicht erkannt werden, weil die konventionellen Teilsysteme (z.B. Ergasbrenner) den Ausfall in der Regel >kompensieren<.}, subject = {Geb{\"a}ude}, language = {de} } @inproceedings{Wittenberg, author = {Wittenberg, Reinhold}, title = {AUFBAU EINES MANAGEMENT-INFORMATIONS-SYSTEMS (M-I-S) UND BAUSTELLEN-CONTROLLINGS}, editor = {G{\"u}rlebeck, Klaus and K{\"o}nke, Carsten}, organization = {Bauhaus-Universit{\"a}t Weimar}, doi = {10.25643/bauhaus-universitaet.3035}, url = {http://nbn-resolving.de/urn:nbn:de:gbv:wim2-20170327-30356}, pages = {7}, abstract = {Die meisten Insolvenzen in Deutschland kommen aus der Bauindustrie. Die Gr{\"u}nde hierf{\"u}r sind vielschichtig, jedoch kann mittels eines modern ausgerichteten M-I-S und Baustellen-Controllings fr{\"u}hzeitig erkannt werden, wie sich die Baustellenergebnisse entwickeln. Hierzu ist es notwendig, dass die Arbeitskalkulation st{\"a}ndig auf dem Laufenden gehalten wird. Nur wenn dies geschieht, sind monatliche Soll-/ Ist-Vergleiche und eine Betrachtung der cost-to-complete m{\"o}glich und sinnvoll. Eine monatlich rollierende Prognose des Baustellenergebnisses zum Bauende erm{\"o}glicht, dass gravierende Ver{\"a}nderungen des Ergebnisses umgehend aufgedeckt werden. Nur in Kenntnis dieser Entwicklungen kann das Management fr{\"u}hzeitig (im Sinne eines Fr{\"u}hwarnsystems) agieren und Steuerungsmaßnahmen ergreifen. Die Ergebnisprognose zum Bauende ist allein als Steuerungsinstrument nicht ausreichend. Die Finanzsituation der Baustelle muß auch regelm{\"a}ßig gepr{\"u}ft werden, d.h. der Leistungsstand mit der Rechnungsstellung an den Bauherren abgeglichen sowie die unbezahlten Rechnungen des Bauherren {\"u}berpr{\"u}ft werden. Das beste Prognoseergebnis ist wertlos, wenn der Bauherr seine bezogenen Leistungen nicht verg{\"u}tet. Die wirtschaftlichen Daten stehen den Verantwortlichen online im Baustellen-Informations-System (B-I-S) zur Verf{\"u}gung. Ein Ampelsystem verdeutlicht die wirtschaftliche Lage der Baustelle.}, subject = {Architektur }, language = {de} } @inproceedings{Wittenberg2003, author = {Wittenberg, Reinhold}, title = {Einsatz eines Dokumenten - Management - Sytems (DMS) f{\"u}r Eingangsrechnungen in Bauunternehmen}, doi = {10.25643/bauhaus-universitaet.379}, url = {http://nbn-resolving.de/urn:nbn:de:gbv:wim2-20111215-3791}, year = {2003}, abstract = {Die Aug. Prien Bauunternehmung hat im Jahre 2001/2002 ein DMS eingef{\"u}hrt. Die Gr{\"u}nde daf{\"u}r waren, dass die Aufbewahrungsfristen von sechs auf zehn Jahre erh{\"o}ht wurden, man die Abl{\"a}ufe in der Verwaltung straffen und die Postwege von und zu großen Baustellen sparen wollte. Die Einf{\"u}hrung des Systems dauerte sechs Monate. Die Zusammenarbeit mit den externen Beratern wurde a-typisch gestaltet: kein Pflichtenheft (sondern Projektbeschreibung) und keinen festen Preis (sondern Budgetrahmen). Die aufkommenden Fragen und Probleme konnten in st{\"a}ndigen Feed-Back-Schleifen zwischen den Anwendern, dem Projektleiter und den externen Programmierer gel{\"o}st werden. Interne Widerst{\"a}nde konnten durch Durchsetzungswillen als auch Eingehen auf die Einw{\"a}nde {\"u}berwunden werden. Bei der Programmierung des Systems wurde darauf geachtet, dass die Handhabung f{\"u}r die Anwender so einfach wie m{\"o}glich gestaltet wurde. Mit der Einf{\"u}hrung des Systems zeichnen fast alle Anwender (>90\%) ihre Rechnungen am Bildschirm ab - ob in der Zentrale oder draußen auf der Baustelle. Die Bauleiter auf den Baustellen k{\"o}nnen sich {\"u}ber eine ISDN-Leitung auf einen Terminal-Server in der Zentrale einw{\"a}hlen und dann so wie im B{\"u}ro arbeiten. Bereits archivierte Rechnungen k{\"o}nnen sich die Anwender jederzeit {\"u}ber das firmeninterne Baustellen-Informations-System (B-I-S) wieder aufrufen. Die Rechnungskontrolle braucht nicht mehr die Belege in Bauleiter-Mappen sortieren, weiß jederzeit wo eine Rechnung zur Bearbeitung liegt und bekommt nur noch die ge{\"a}nderten Rechnungen zur Bearbeitung (alle anderen gehen direkt in den automatischen Zahlungslauf). Durch die Einf{\"u}hrung des Systems konnte eine Person in der Rechnungskontrolle eingespart werden. Der Return on Invest (ROI) liegt bei 1,4 Jahren, was ein guter Wert ist. Zwischenzeitlich werden weitere Belege gescannt.}, subject = {Baubetrieb}, language = {de} } @inproceedings{Winkler1976, author = {Winkler, Klaus-J{\"u}rgen}, title = {Der soziale Aspekt in den architekturtheoretischen Anschauungen und in der Architekturlehre Hannes Meyers}, doi = {10.25643/bauhaus-universitaet.889}, url = {http://nbn-resolving.de/urn:nbn:de:gbv:wim2-20111215-8892}, year = {1976}, abstract = {Wissenschaftliches Kolloquium vom 27. bis 29. Oktober 1976 in Weimar an der Hochschule f{\"u}r Architektur und Bauwesen zum Thema: '50 Jahre Bauhaus Dessau'}, subject = {Meyer}, language = {de} } @inproceedings{WilsonDamodaranOlphert2004, author = {Wilson, Ian E. and Damodaran, Leela and Olphert, Wendy}, title = {ICT Adoption in the Construction Sector: Education and Training Issues}, doi = {10.25643/bauhaus-universitaet.201}, url = {http://nbn-resolving.de/urn:nbn:de:gbv:wim2-20111215-2013}, year = {2004}, abstract = {Organisational and human issues have been highlighted, among other issues (ICT infrastructures, legal and contractual, etc.), as key elements in enhancing the competitiveness of the construction sector. More specifically, the importance of human resources has been recognised, especially training and professional development, in order to cultivate a stable workforce. The paper provides a review of the key training needs for the construction sector with particular reference to the uptake and exploitation of new technologies and working practices, presents an action plan to address learning and training needs, and proposes an eight-stage iterative learning and training methodology. The results will be of particular interest to managers in stakeholder organisations of all sizes throughout the sector, plus academic and research bodies intending to continue construction ICT research.}, subject = {Forschung}, language = {en} } @inproceedings{WillenbacherHuebler2000, author = {Willenbacher, Heiko and H{\"u}bler, Reinhard}, title = {Relationen zwischen Dom{\"a}nenmodellen Ansatz zur Schaffung einer integrierenden computergest{\"u}tzten Bauplanungsumgebung}, doi = {10.25643/bauhaus-universitaet.617}, url = {http://nbn-resolving.de/urn:nbn:de:gbv:wim2-20111215-6178}, year = {2000}, abstract = {Die zunehmend erforderliche Kooperation verschiedener Beteiligter unterschiedlicher Fachbereiche und der Einsatz hochspezialisierter Fachapplikationen in heterogenen Systemumgebungen unterstreichen die Bedeutung und Notwendigkeit neuer Konzepte und M{\"o}glichkeiten zur Schaffung einer computergest{\"u}tzten Integrationsebene. Ziel einer computergest{\"u}tzten Integrationsebene ist die Verbesserung der Kooperation und Kommunikation unter den Beteiligten. Grundlage daf{\"u}r ist die Etablierung eines effizienten und fehlerfreien Daten- und Informationsaustausches zwischen den verschiedenen Fachplanern und -applikationen. Die Basis f{\"u}r die Datenintegrationsebene bildet ein digitales Bauwerksmodell im Sinne eines >virtuellen Bauwerks<, welches alle relevanten Daten und Informationen {\"u}ber ein zu planendes oder real existierendes Bauwerk zur Verf{\"u}gung stellt. Bei der Verwirklichung einer Bauwerksmodell-orientierten Datenintegrationsebene und deren Modellverwaltung erweist sich speziell die Definition des Bauwerksmodells also die Spezifikation der relevanten auszutauschenden Daten als {\"a}ußerst komplex. Der hier vorzustellende Relationen-orientierte Ansatz, d.h. die Realisierung des Daten- und Informationsaustauschs mittels definierter Relationen und Beziehungen zwischen dynamisch modifizierbaren Dom{\"a}nenmodellen, bietet Ans{\"a}tze zur: * Verringerung und Beherrschung der Komplexit{\"a}t des Bauwerksmodells (Teilmodellbildung) * Realisierung eines effizienten Datenaustauschs (Relationenmanagement) Somit stellt der Relationenorientierte Ansatz einen ad{\"a}quaten L{\"o}sungsweg zur Modellierung eines digitalen Bauwerksmodells als Datenintegrationsebene f{\"u}r den Lebenszyklus eines Bauwerkes dar.}, subject = {Bauwesen}, language = {de} } @inproceedings{WillenbacherHuebler2003, author = {Willenbacher, Heiko and H{\"u}bler, Reinhard}, title = {Intelligentes Verkn{\"u}pfungsmanagement am Beispiel einer 3D-Visualisierung}, doi = {10.25643/bauhaus-universitaet.378}, url = {http://nbn-resolving.de/urn:nbn:de:gbv:wim2-20111215-3789}, year = {2003}, abstract = {Bauprojekte sind in immer st{\"a}rkerem Maße durch r{\"a}umlich verteilt und zeitlich variant t{\"a}tige hochspezialisierte Fachplaner auf Basis stark differenzierter Hard- und Softwaresysteme gekennzeichnet. Daraus ergibt sich die Notwendigkeit einer durchg{\"a}ngig computergest{\"u}tzten prozeß{\"u}bergreifenden Informationsbereitstellung. Eine deklarativ orientierte integrierte Arbeits- und Planungsumgebung auf Basis eines digitalen Bauwerksmodells bietet das Potential zur Realisierung des erforderlichen Informationsaustausches. Der im Sonderforschungsbereich 524 entwickelte verkn{\"u}pfungsbasierte Bauwerksmodellierungsansatz stellt einen derartigen Ansatz dar und bietet ad{\"a}quate M{\"o}glichkeiten zur Modellintegration und zur modell{\"u}bergreifenden Navigation im Gesamtdatenbestand auf Basis dynamisch manipulierbarer Verkn{\"u}pfungen zwischen Modellelementen. Die Erstellung von Verkn{\"u}pfungen stellt einen komplizierten Prozeß dar. Um ein effizientes dynamisches Definieren von Verkn{\"u}pfungstypen zu gew{\"a}hrleisten sind unterst{\"u}tzende Tools im Sinne eines intelligenten Verkn{\"u}pfungsmanagements notwenig. Die Hauptaufgabe dieser Hilfsmittel besteht darin, die Partialmodelle zielgerichtet zu analysieren und entsprechende Vorschl{\"a}ge f{\"u}r die Elemente eines Verkn{\"u}pfungstyps zu generieren und diese auch entsprechend zu verarbeiten. Hierzu wird ein regelbasierter Ansatz mit Visualisierungsmethoden zur Erh{\"o}hung der Transparenz des Verkn{\"u}pfungsmanagements kombiniert. Die Wissensbasis stellt dabei das objektorientiert strukturiert vorgehaltene Dom{\"a}nenwissen in den jeweiligen Partialmodellen dar. Der deklarativen Wissensabbildung folgend steht zur Erkennung von Zusammenh{\"a}ngen zwischen Elementen verschiedener Partialmodelle ein explizit definierter und extern vorgehaltener Regelapparat zur Verf{\"u}gung. Am Beispiel einer 3D-Visualiserung der Elemente eines Partialmodells Architektur werden die entwickelten Konzepte evaluiert.}, subject = {Geb{\"a}ude}, language = {de} } @inproceedings{Wilhelm, author = {Wilhelm, Karin}, title = {TERRITORIALIT{\"A}T UND INTERNATIONAL STYLE}, editor = {Faschingeder, Kristian and Jormakka, Kari and Korrek, Norbert and Pfeifer, Olaf and Zimmermann, Gerd}, publisher = {Verlag der Bauhaus-Universit{\"a}t}, address = {Weimar}, organization = {Bauhaus-Universit{\"a}t Weimar}, isbn = {978-3-86068-417-7}, doi = {10.25643/bauhaus-universitaet.3050}, url = {http://nbn-resolving.de/urn:nbn:de:gbv:wim2-20170329-30501}, pages = {14}, abstract = {Dr. phil., seit 2001 Professorin f{\"u}r Geschichte und Theorie der Architektur und der Stadt; zuvor Professorin f{\"u}r Kunstgeschichte an der TU Graz; Gastprofessuren f{\"u}r Kunst-, Architektur- und Designgeschichte an der UdK Berlin, Universit{\"a}t Kassel, Oldenburg und Bonn; Studium der Kunstgeschichte, Soziologie, Psychologie und Philosophie. Karin Wilhelm ist Organisatorin mehrerer internationaler Ausstellungen zur modernen Architektur und zum Design (Berlin, London, Stock olm) und war wissenschaftlicher Beirat der Stiftung Bauhaus Dessau und des Deutschen Architekturmuseums (DAM). Zahlreiche Ver{\"o}ffentlichungen, zuletzt: Bauhaus Weimar 1919 -1924 (1996); Kunst als Revolte? Von der F{\"a}higkeit der K{\"u}nste, Nein zu sagen (1996); Visionen vom Gl{\"u}ck - Visionen vom Untergang: Zeichen und Diskurse zur „sch{\"o}nen neuen Welt" (1998); Sehen - Gehen - Denken: der Entwurf des Bauhausgeb{\"a}udes, in: ‚Das Bauhausgeb{\"a}ude in Dessau 1926 -1999' (1998); City-Lights - Zentren, Peripherien, Regionen: interdisziplin{\"a}re Positionen f{\"u}r eine urbane Kultur (2002), Idea and form: H{\"a}user von Szyszkowitz + Kowalski (2003); Formationen der Stadt. Camillo Sitte weitergelesen (2005).}, subject = {Architekturtheorie}, language = {de} } @inproceedings{WiggenbrockSmarsly, author = {Wiggenbrock, Jens and Smarsly, Kay}, title = {A GENERIC FRAMEWORK SUPPORTING DISTRIBUTED COMPUTING IN ENGINEERING APPLICATIONS}, series = {Digital Proceedings, International Conference on the Applications of Computer Science and Mathematics in Architecture and Civil Engineering : July 20 - 22 2015, Bauhaus-University Weimar}, booktitle = {Digital Proceedings, International Conference on the Applications of Computer Science and Mathematics in Architecture and Civil Engineering : July 20 - 22 2015, Bauhaus-University Weimar}, editor = {G{\"u}rlebeck, Klaus and Lahmer, Tom}, organization = {Bauhaus-Universit{\"a}t Weimar}, issn = {1611-4086}, doi = {10.25643/bauhaus-universitaet.2826}, url = {http://nbn-resolving.de/urn:nbn:de:gbv:wim2-20170314-28260}, pages = {9}, abstract = {Modern distributed engineering applications are based on complex systems consisting of various subsystems that are connected through the Internet. Communication and collaboration within an entire system requires reliable and efficient data exchange between the subsystems. Middleware developed within the web evolution during the past years provides reliable and efficient data exchange for web applications, which can be adopted for solving the data exchange problems in distributed engineering applications. This paper presents a generic approach for reliable and efficient data exchange between engineering devices using existing middleware known from web applications. Different existing middleware is examined with respect to the suitability in engineering applications. In this paper, a suitable middleware is shown and a prototype implementation simulating distributed wind farm control is presented and validated using several performance measurements.}, subject = {Angewandte Informatik}, language = {en} } @inproceedings{WiedjoechinaSchaposchnikow2003, author = {Wiedjoechina, Inna and Schaposchnikow, Nikolai N.}, title = {Berechnung von Stab- und zylindrischen Fl{\"a}chensystemen (gefaltet) unter Verwendung der symbolischen Programmiersprache MAPLE}, doi = {10.25643/bauhaus-universitaet.377}, url = {http://nbn-resolving.de/urn:nbn:de:gbv:wim2-20111215-3778}, year = {2003}, abstract = {In der j{\"u}ngeren Vergangenheit haben die Entwicklungen von neuen Programmen und der Rechentechnik zu radikalen Ver{\"a}nderungen in den Methoden der Berechnung von ingenieurtechnischen Bauten gef{\"u}hrt. An erster Stelle sind hier die Matrizenmethoden f{\"u}r notwendige Berechnungen der Aufgaben anzuf{\"u}hren, welche eine kompakte und allgemeine Form der Aufschreibung von Gleichungen gestatten und geeignet f{\"u}r die Bearbeitung an Computern sind. Die elektronischen Maschinen wurden damit bef{\"a}higt nicht nur Systeme linear-algebraischer Gleichungen mit hundert oder tausend von Unbekannten zu l{\"o}sen, sonder auch die Bearbeitung von Differentialgleichungen, sowie die Formierung dieser Gleichungen zu {\"u}bernehmen. Damit {\"u}bernehmen die Computer den Grossteil des Prozesses der Berechnung und der Projektierung einer Konstruktion. Zweifellose Aktualit{\"a}t haben die Fragen {\"u}ber die Benutzung dieser Eigenschaften f{\"u}r die Aufgaben der Bauinformatik und Baumechanik. Diesen ist der vorliegende Artikel gewidmet. In der Praxis der Projektierung kommen oft komplexe Stabsysteme und zylindrische-gefaltete Fl{\"a}chensysteme vor. Dabei ist zu ber{\"u}cksichtigen: die Verschiebung in Stabsystemen, ihre elastischen Gr{\"u}ndungen und die auftretenden l{\"a}ngs- und querlaufenden Biegungen sowie harmonische Schwingungen. In diesem Artikel wird ein universeller Algorithmus zur Ausarbeitung von Matrizen f{\"u}r H{\"a}rte- und Festigkeitsbetrachtungen f{\"u}r St{\"a}be vorgestellt. Der entwickelte Algorithmus erlaubt die Berechnung von komplizierten Stabsystemen, die in der Praxis weit verbreitet sind. F{\"u}r die Ausarbeitung der Matrizen f{\"u}r die Festigkeitsbetrachtung wurde die symbolische Programmiersprache MAPLE benutzt. Weiterhin zeigt dieser Artikel die Berechnung von gefalteten Fl{\"a}chensystemen unter Verwendung des diskret- kontinuierlichen Modells von W. S. Wlasow, mit Hilfe eines universellen Algorithmus auf. F{\"u}r die Aufstellung der Matrix f{\"u}r Festigkeitsbetrachtung werden als Systemeinstellungen die Schichtformierung und der Ausschluss nach Gauss vorgeschlagen. Am Ende des Artikels werden Beispiele f{\"u}r die Berechnung von komplizierten Konstruktion aufgef{\"u}hrt.}, subject = {Baustatik}, language = {de} } @inproceedings{Weyhe2002, author = {Weyhe, Stefan}, title = {Das System der „Helfenden Pr{\"u}fung"}, doi = {10.25643/bauhaus-universitaet.712}, url = {http://nbn-resolving.de/urn:nbn:de:gbv:wim2-20111215-7120}, year = {2002}, abstract = {Der Verfasser stellt die transparente Qualit{\"a}tssicherung als integralen Bestandteil des gesamten Bauplanungs- und Bauausf{\"u}hrungsprozesses dar, mit welcher dem großen Umfang der Baum{\"a}ngel begegnet werden soll.}, subject = {Baubetriebslehre}, language = {de} } @inproceedings{Weyhe2004, author = {Weyhe, Stefan}, title = {Qualit{\"a}tssicherung in der Bauausf{\"u}hrung}, doi = {10.25643/bauhaus-universitaet.721}, url = {http://nbn-resolving.de/urn:nbn:de:gbv:wim2-20111215-7219}, year = {2004}, abstract = {Baum{\"a}ngel und Bausch{\"a}den in der Bauwirtschaft, Auswirkungen von Liberalisierung und Deregulierung auf die Bauqualit{\"a}t, Grundlagen zur Theorie der Bauqualit{\"a}t, die Praxis der baubegleitenden Qualit{\"a}tssicherung, Kritik an der baubegleitenden Qualit{\"a}tssicherung, Folgerungen f{\"u}r neue Ans{\"a}tze}, subject = {Baubetriebslehre}, language = {de} } @inproceedings{WerklePlesske2003, author = {Werkle, Horst and Pleßke, Hartmut}, title = {Engineering Desktop Anwendungen in der Tragwerksplanung auf der Grundlage der COM-Technologie}, doi = {10.25643/bauhaus-universitaet.376}, url = {http://nbn-resolving.de/urn:nbn:de:gbv:wim2-20111215-3766}, year = {2003}, abstract = {Zur effizienten Nutzung von Office- und Computeralgebra-Software im Sinne einer Engineering Desktop Umgebung wurde ein Framework f{\"u}r die Tragwerksplanung entwickelt. Dieses umfasst Klassen und Methoden zur Schnittgr{\"o}ßenermittlung von Durchlauftr{\"a}gern, Fachwerken und ebener Stabwerke sowie f{\"u}r Nachweise und Bemessungsaufgaben im Stahlbeton-, Stahl- und Holzbau. Die Anwendung des Frameworks im Rahmen einer Office-Software beruht auf der Komponententechnologie. Im Rahmen von MS-Windows handelt es sich um das COM-Modell. Die Komponentenbibliothek des Frameworks wurde in JAVA implementiert. Die Nutzeroberfl{\"a}che kann aus Berechnungssoftware wie Excel und Mathcad bestehen. Aber auch die Entwicklung von Tragwerkseditoren oder internetbasierender Software ist damit m{\"o}glich. Anwendungen des Frameworks wurden in MS-Excel mit VBA und in Mathcad mit der C++Schnittstelle realisiert. Ziel dieser Entwicklung ist eine Engineering Desktop Umgebung auf dem Computer, bei der nichtstandardisierbare Untersuchungen in der Tragwerksplanung ebenso einfach, aber effizienter, sicherer und besser dokumentiert als mit Bleistift und Papier erfolgen k{\"o}nnen. Zwei Beispiele verdeutlichen die Anwendung des Frameworks. Hierbei handelt es sich einmal um eine statische Voruntersuchung mit Mathcad, bei der die mit dem Framework entwickelten Funktionen verwendet werden. Das zweite Beispiel behandelt die Erstellung eines Teachtools in MS-Excel.}, subject = {Baustatik}, language = {de} } @inproceedings{Werckmeister, author = {Werckmeister, Otto Karl}, title = {FRAGEN ZU HANNES MEYER}, editor = {Faschingeder, Kristian and Jormakka, Kari and Korrek, Norbert and Pfeifer, Olaf and Zimmermann, Gerd}, publisher = {Verlag der Bauhaus-Universit{\"a}t}, address = {Weimar}, organization = {Bauhaus-Universit{\"a}t Weimar}, isbn = {978-3-86068-417-7}, doi = {10.25643/bauhaus-universitaet.3051}, url = {http://nbn-resolving.de/urn:nbn:de:gbv:wim2-20170329-30517}, pages = {8}, abstract = {Otto Karl Werckmeister war, neben Forschungsauftr{\"a}gen am Warburg Institute, London und dem Deutschen Arch{\"a}ologischen Institut, Professor f{\"u}r Kunstgeschichte an der UCLA und der Northwestern University in Evanstown/Illinois, sowie Gastprofessor an den Universit{\"a}ten Marburg und Hamburg. Die Strategien von K{\"u}nstlern des 20. Jahrhunderts auf dem Weg zum Ruhm hat er ebenso untersucht wie das Bildrepertoire fr{\"u}hmittelalterlicher Buchillustrationen oder der japanischen Manga-Comics. Walter Benjamins Forderung nach einer „Aktualit{\"a}t des Denkens" hat ihm als Motto seiner Untersuchungen gedient. Zu seinen wichtigsten Ver{\"o}ffentlichungen geh{\"o}ren: Ende der {\"A}sthetik (1971), Ideologie und Kunst bei Marx (1974), Versuche {\"u}ber Paul Klee (1981), The Making of Paul Klee's Career, 1914-1920 (1988), Zitadellenkultur. Die sch{\"o}ne Kunst des Untergangs in der Kultur der Achtziger Jahre (1989); Linke Ikonen: Benjamin, Eisenstein, Picasso - nach dem Fall des Kommunismus (1997), Der Medusa-Effekt - Politische Bildstrategien seit dem 11. September 2001 (2005).}, subject = {Architekturtheorie}, language = {de} } @inproceedings{WenderDonathPetzold2004, author = {Wender, Katrin and Donath, Dirk and Petzold, Frank}, title = {Preparation and provision of building information for planning within existing built contexts}, doi = {10.25643/bauhaus-universitaet.182}, url = {http://nbn-resolving.de/urn:nbn:de:gbv:wim2-20111215-1829}, year = {2004}, abstract = {A prerequisite for planning within existing built contexts is precise information regarding the building substance, its construction and materials, possible damages and any modifications and additions that may have occurred during its lifetime. Using the information collected in a building survey the user should be able to "explore" the building in virtual form, as well as to assess the information contained with regard to a specific planning aspect. The functionality provided by an information module should cover several levels of information provision ranging from 'simple retrieval' of relevant information to the analysis and assessment of stored information with regard to particular question sets. Through the provision of basic functionality at an elementary level and the ability to extend this using plug-ins, the system concept of an open extendable system is upheld. Using this modular approach, different levels of information provision can be provided as required during the planning process.}, subject = {Architektur}, language = {en} } @inproceedings{WenderWillenbacherHuebler, author = {Wender, K. and Willenbacher, Heiko and H{\"u}bler, Reinhard}, title = {BENUTZERAD{\"A}QUATE NAVIGATIONS- UND RECHERCHETECHNOLOGIEN F{\"U}R VERTEILTE DYNAMISCHE DIGITALE BAUWERKSMODELLE}, editor = {G{\"u}rlebeck, Klaus and K{\"o}nke, Carsten}, organization = {Bauhaus-Universit{\"a}t Weimar}, doi = {10.25643/bauhaus-universitaet.3034}, url = {http://nbn-resolving.de/urn:nbn:de:gbv:wim2-20170327-30349}, pages = {13}, abstract = {Hinsichtlich der Integration einzelner Bauwerkslebensphasen und der verschiedenen Beteiligten, insbesondere innerhalb von Bauplanungs- und Revitalisierungsprozessen, bestehen aktuell entscheidende Defizite. Die generelle Zielstellung der in diesem Beitrag vorgestellten Forschungsarbeiten besteht in der Unterst{\"u}tzung und Verbesserung der Integration durch die disziplin- und lebensphasen{\"u}bergreifende Bereitstellung s{\"a}mtlicher bauwerksbezogener Informationen. Dies erfordert einerseits geeignete Ans{\"a}tze zur Modellierung und Integration der vielf{\"a}ltigen disziplinspezifischen Daten, andererseits geeignete L{\"o}sungen, die einen globalen Zugriff, Navigation und Recherche im Gesamtdatenbestand erm{\"o}glichen. Die Modellierung und Verwaltung bauwerksbezogener Daten ist seit l{\"a}ngerem Gegenstand diverser Forschungsarbeiten. Im Rahmen des SFB 524 wurde ein eigener Ansatz basierend auf einem laufzeitdynamischen Partialmodellverbund entwickelt. Dieser wird in den wesentlichen Grundz{\"u}gen anderen Ans{\"a}tzen gegen{\"u}bergestellt. Den Schwerpunkt dieses Beitrags bildet jedoch die Entwicklung einer geeigneten flexiblen Navigations- und Rechercheschicht zu Realisierung projektglobaler Informationsrecherche. Aus der Sicht der Modellierung und Datenverwaltung wie auch aus der Sicht der Informationsrecherche und Informationspr{\"a}sentation in Planungsprozessen ergeben sich verschiedene Anforderungen an derartige Recherchewerkzeuge, wobei der wesentlichste Grundsatz maximale Flexibilit{\"a}t hinsichtlich verf{\"u}gbarer Darstellungstechniken und deren freie Kombination mit Techniken formaler Suchanfragen ist. Das entwickelte Systemkonzept basiert auf einem Framework, welches verschiedene Grundtypen von Recherchemodulen und deren Interaktionsprinzipien vorgibt. Einzelne Recherchemodule werden als Auspr{\"a}gungen dieser Modultypen realisiert und k{\"o}nnen je nach Bedarf laufzeitdynamisch in die Navigationsschicht integriert werden. Die technische Realisierung des Systems erfolgt im Umfeld vorhandener Prototypen aus vorangegangenen Forschungsaktivit{\"a}ten. Dieses technische Umfeld gibt verschiedene Rahmenbedingungen vor, welche im Vorfeld prototypischer Implementierungen verschiedene Adaptionen des generellen Systemkonzepts notwendig machen. Der vorliegende Beitrag stellt den aktuellen Entwicklungsstand der Systeml{\"o}sung aus konzeptioneller und technischer Sicht sowie erste prototypische Realisierungen von Recherchemodulen vor.}, subject = {Architektur }, language = {de} } @inproceedings{WellmannJelicHartmann2003, author = {Wellmann Jelic, Andres and Hartmann, Dietrich}, title = {Einfluss von Kranfahrtlasten auf die lebensdauerorienteierte Auslegung von Rahmentragwerken}, doi = {10.25643/bauhaus-universitaet.375}, url = {http://nbn-resolving.de/urn:nbn:de:gbv:wim2-20111215-3753}, year = {2003}, abstract = {Ziel des Teilprojekts C5 des Sonderforschungsbereichs 398 an der Ruhr-Universit{\"a}t Bochum ist die Entwicklung eines lebensdauerorientierten Entwurfsmodells f{\"u}r Stahltragwerke. Das Referenzsystem der letzten F{\"o}rderperiode war eine einschiffige Stahlhalle mit Kranbahnen. Der vorliegende Beitrag stellt die Ergebnisse einer Sensitivit{\"a}tsanalyse des Stahlrahmens unter Kranfahrtlasten vor. Diese Verkehrslasten wurden, v{\"o}llig entkoppelt von weiteren {\"a}ußeren Einfl{\"u}ssen wie Wind und Schnee, als poissongetriebene Pulsprozesse beschrieben, die zuf{\"a}lligen Eigenschaften der Kranfahrtlasten wurden in den Zufallsvariablen Pulsdauer und Pulsintensit{\"a}t ber{\"u}cksichtigt. Zur Minimierung des Rechenaufwandes der Lebensdauer-untersuchung wurden a priori einige Systemparameter anhand von Parameterstudien im Hinblick auf ihre dynamische Wirkung maßgebend festgelegt. In einer darauf aufbauenden Betriebsfestigkeitsuntersuchung wurden die Sch{\"a}digungseintr{\"a}ge in einer Rahmenecke infolge von jeweils einzelnen Pulslastereignissen berechnet und in einer Datenbasis abgelegt. Eine abschließende Distance-Controlled Monte Carlo Simulation der Pulsprozesse {\"u}ber einen maximalen Zeitraum von 100 Jahren {\"u}berf{\"u}hrte die Realisationen der einzelnen Pulslasten anhand der Datenbasis in Teilsch{\"a}digungen, welche nach der Palmgren/Miner-Hypothese zu einer Gesamtsch{\"a}digung aufsummiert wurden. Der Einfluss der Kranlasten auf den Entwurf von Stahlhallen wurde durch den Vergleich der berechneten Lebensdauer und der planm{\"a}ßig vorgegebenen Nutzungsdauer quantifiziert.}, subject = {Rahmentragwerk}, language = {de} } @inproceedings{WellmannJelicBaitschHartmann2004, author = {Wellmann Jelic, Andres and Baitsch, Matthias and Hartmann, Dietrich}, title = {Distributed computing of failure probabilities for structures in civil engineering}, doi = {10.25643/bauhaus-universitaet.103}, url = {http://nbn-resolving.de/urn:nbn:de:gbv:wim2-20111215-1030}, year = {2004}, abstract = {In this contribution the software design and implementation of an analysis server for the computation of failure probabilities in structural engineering is presented. The structures considered are described in terms of an equivalent Finite Element model, the stochastic properties, like e.g. the scatter of the material behavior or the incoming load, are represented using suitable random variables. Within the software framework, a Client-Server-Architecture has been implemented, employing the middleware CORBA for the communication between the distributed modules. The analysis server offers the possibility to compute failure probabilities for stochastically defined structures. Therefore, several different approximation (FORM, SORM) and simulation methods (Monte Carlo Simulation and Importance Sampling) have been implemented. This paper closes in showing several examples computed on the analysis server.}, subject = {Konzipieren }, language = {en} } @inproceedings{Weissgerber2001, author = {Weißgerber, Barbara}, title = {Stressabbau und Stressmanagement f{\"u}r Bauleiter}, doi = {10.25643/bauhaus-universitaet.399}, url = {http://nbn-resolving.de/urn:nbn:de:gbv:wim2-20111215-3994}, year = {2001}, abstract = {Mit einem Forschungsprojekt, das die psychische Belastungssituation von Bauleitern in den Mittelpunkt stellte, hat die Bundesanstalt f{\"u}r Arbeitsschutz und Arbeitsmedizin weitgehend Neuland im Bausektor beschritten. Exemplarisch wurde die Berufsgruppe der Firmenbauleiter untersucht, um aus der Ermittlung der psychischen Belastung und Beanspruchung dieser Zielgruppe Vorschl{\"a}ge zur Anforderungsoptimierung und Gesundheitsf{\"o}rderung zu unterbreiten. Die Untersuchungen belegen, dass besteht ein Bedarf an Handreichungen zur Stressverminderung besteht. Da Bauleiter eine Schl{\"u}sselposition f{\"u}r Arbeitsbedingungen, Sicherheit und Wirtschaftlichkeit der betreuten Baustellen haben, erreicht man mit stressvermindernden Maßnahmen f{\"u}r diese Personengruppe auch eine Breitenwirkung im Unternehmen.}, subject = {Arbeitsschutz}, language = {de} } @inproceedings{WeissSchreiber2003, author = {Weiß, Dietrich and Schreiber, Cornelia}, title = {Arbeitsschutzkonzept f{\"u}r den Bau einr{\"o}hriger Tunnel am Beispiel der ICE-Querung des Th{\"u}ringer Waldes}, doi = {10.25643/bauhaus-universitaet.471}, url = {http://nbn-resolving.de/urn:nbn:de:gbv:wim2-20111215-4712}, year = {2003}, abstract = {Erfahrungen bei der Umsetzung der Baustellenverordnung beim Bau der ICE-Neubaustrecke in Th{\"u}ringen, im Vergleich zu Projekten des Autobahnneubaus. Die entscheidende Schwierigkeit liegt in der Einr{\"o}hrigkeit der Tunnel. Von entscheidender Voraussetzung f{\"u}r die erfolgreiche Arbeit ist eine von gegenseitiger Achtung gekennzeichnete Zusammenarbeit in der Planung zwischen Bauherrn, Planer und dem Amt f{\"u}r Arbeitsschutz. Wegetransportplan: Im Unterschied zum Autobahnbau geh{\"o}ren die Baustraßen nicht zum jeweiligen Los. Alle Zuwegungen werden gesondert betrachtet. Fluchtwege.}, subject = {Arbeitsschutz}, language = {de} } @inproceedings{WeissSchreiber2000, author = {Weiß, Dietrich and Schreiber, Cornelia}, title = {Prozessvorbereitung Sicherheit und Arbeitsschutz - integraler Bestandteil der Arbeits- und Prozessvorbereitung}, doi = {10.25643/bauhaus-universitaet.706}, url = {http://nbn-resolving.de/urn:nbn:de:gbv:wim2-20111215-7063}, year = {2000}, abstract = {Ein Weg, der großen Unfallgefahr auf Baustellen wirksam zu begegnen, liegt in der gewissenhaften Ausschreibung, Planung und Arbeitsvorbereitung. Die Verfasser belegen das anhand von Beispielen aus dem Th{\"u}ringer Baugeschehen.}, subject = {Arbeitsschutz}, language = {de} } @inproceedings{WeissSchreiber1999, author = {Weiß, Dietrich and Schreiber, Cornelia}, title = {Sicherheit im Tunnelbau - eine Herausforderung f{\"u}r die Beteiligten}, doi = {10.25643/bauhaus-universitaet.831}, url = {http://nbn-resolving.de/urn:nbn:de:gbv:wim2-20111215-8310}, year = {1999}, subject = {Arbeitsschutz}, language = {de} } @inproceedings{Weitzmann, author = {Weitzmann, R{\"u}diger}, title = {SIMPLIFIED CYCLE-BASED DESIGN OF EXTREMELY LOADED STRUCTURES}, editor = {G{\"u}rlebeck, Klaus and K{\"o}nke, Carsten}, organization = {Bauhaus-Universit{\"a}t Weimar}, doi = {10.25643/bauhaus-universitaet.3033}, url = {http://nbn-resolving.de/urn:nbn:de:gbv:wim2-20170327-30338}, pages = {14}, abstract = {The design of safety-critical structures, exposed to cyclic excitations demands for non-degrading or limited-degrading behavior during extreme events. Among others, the structural behavior is mainly determined by the amount of plastic cycles, completed during the excitation. Existing simplified methods often ignore this dependency, or assume/request sufficient cyclic capacity. The paper introduces a new performance based design method that considers explicitly a predefined number of re-plastifications. Hereby approaches from the shakedown theory and signal processing methods are utilized. The paper introduces the theoretical background, explains the steps of the design procedure and demonstrates the applicability with help of an example. This project was supported by German Science Foundation (Deutsche Forschungsgemeinschaft, DFG)}, subject = {Architektur }, language = {en} } @inproceedings{Weitzmann2003, author = {Weitzmann, R{\"u}diger}, title = {Limit state design of hybrid structures with meshless methods using mathematical optimization}, doi = {10.25643/bauhaus-universitaet.6}, url = {http://nbn-resolving.de/urn:nbn:de:gbv:wim2-20111215-67}, year = {2003}, abstract = {The revitalization of existing structures belongs to the frequently tasks in urban reconstruction processes. The adaptation for new requirements will commonly affect substantial changes in the general configuration of structures. The resulting revitalized structures are characterized by a hybrid design, where old and new, identical or diverse materials and members will be coupled in different ways. In the planning stage the treatment of these systems leads to application of complex and hybrid mechanical models respectively. High performance numerical instruments have to be applied for solving not only analysis but also targeted design problems. Because of the hybrid character of mechanical models in revitalization planning processes the use of hybrid technologies is advantageous. In this paper mixed domain technique will be used for connecting EFG and FE. The models derived will be adopted for design purposes of non-linear loaded hybrid structures. The investigations show a good adaptability of the meshless methods to the design of hybrid structures by using optimization strategies. With this method the advantages of both finite element and meshless methods can be utilized most suitable. With the property of a minimum amount of unknowns by maintaining an adequate quality of the results the application of mixed finite element and meshless methods is a promising alternative to traditional methods in structural analysis and optimization.}, subject = {Geb{\"a}ude}, language = {de} } @inproceedings{Weinrich2005, author = {Weinrich, Wolfgang}, title = {Eine schlanke Arbeitsst{\"a}ttenverordnung}, doi = {10.25643/bauhaus-universitaet.689}, url = {http://nbn-resolving.de/urn:nbn:de:gbv:wim2-20111215-6892}, year = {2005}, abstract = {Es wird die neue Arbeitsst{\"a}ttenverordnung erl{\"a}utert: Anliegen der Novellierung, Bezug zum Arbeitsschutzgesetz, Aufbau der ArbSt{\"a}ttV, wesentliche Inhalte, Interpretationshilfen, Bezug zur Th{\"u}ringer Bauordnung, Konsequenzen f{\"u}r den Baubetrieb}, subject = {Arbeitsschutz}, language = {de} } @inproceedings{Weilert2003, author = {Weilert, Astrid}, title = {Online-Lehre im Einsatz}, doi = {10.25643/bauhaus-universitaet.374}, url = {http://nbn-resolving.de/urn:nbn:de:gbv:wim2-20111215-3748}, year = {2003}, abstract = {Das im Rahmen des vom BMBF gef{\"o}rderten Projektes PORTIKO (Multimediale Lehr- und Lernplattform f{\"u}r den Studiengang Bauingenieurwesen) umfasst 10 Bauingenieurinstitute in Braunschweig und Dresden und das Fernstudium an der TU Dresden. Daneben sind drei Stabsprojekte f{\"u}r Didaktik, Teleteaching und Multimedia-Plattform als Dienstleister und Koordinatoren f{\"u}r die anderen Teilprojekte t{\"a}tig. An der TU Braunschweig ist das Institut f{\"u}r Baustoffe, Massivbau und Brandschutz unter anderem f{\"u}r die Grundfachausbildung des Massivbau (5. + 6. Semester) und f{\"u}r eine spezielle Vertiefungsrichtung, den Brand- und Katastrophenschutz (7. bis 9. Semester), zust{\"a}ndig. In diesem Beitrag wird zun{\"a}chst ein {\"U}berblick {\"u}ber die verwendete Plattform sowie die eingesetzten Hardware- und Softwaretechniken gegeben. Anschließend wird von ersten Erfahrungen {\"u}ber den Einsatz der Online-Lehre und die daraus gewonnen unterschiedlichen strategischen Ans{\"a}tze f{\"u}r das weiter Vorgehen nach Projektende im Massivbau und im Brandschutz vorgestellt. Um den Praxisbezug zu vertiefen, wurden in PORTIKO zwei Projektbereiche gebildet, die auf Grund der engen Beziehung zwischen den F{\"a}chern gezielt zusammenarbeiten sollen. Dabei handelt es sich um die Bereiche >Virtuelles Haus< und >Virtuelle Infrastruktur<. Am Beispiel des Virtuellen Hauses soll gezeigt werden, wie die einzelnen F{\"a}cher mit Hilfe abgestimmter {\"U}bungsbeispiele den Studierenden die Notwendigkeit der Teamarbeit und Interaktion verschiedener Disziplinen vor Augen f{\"u}hren. Den Studenten stehen durch die Online-Plattform eine Vielzahl von M{\"o}glichkeiten zur Verf{\"u}gung, z. B. mit Videoclips und Fotos {\"u}ber Versuche und Baustellen angereicherte Skripte, audio-kommentierte Vorlesungsfolien, alte Klausuren mit Musterl{\"o}sungen, Aufgabenstellungen f{\"u}r Haus{\"u}bungen, usw.. Den Studierenden k{\"o}nnen in der Online-Lehre interaktive Anwendungen zur Verf{\"u}gung gestellt werden, die ein spielerisches Erproben und Beobachten von Parametereinfl{\"u}ssen erm{\"o}glichen. Solche interaktiven {\"U}bungen werden mit Java, Flash und Authorware erstellt. Hierzu werden Beispiele vorgestellt.}, subject = {Bauingenieurstudium}, language = {de} } @inproceedings{Weikert2003, author = {Weikert, Wilfried}, title = {Gesetzliche Neuregelungen zum Arbeitsschutz}, doi = {10.25643/bauhaus-universitaet.470}, url = {http://nbn-resolving.de/urn:nbn:de:gbv:wim2-20111215-4702}, year = {2003}, abstract = {Darlegung aktueller rechtlicher Neuregelungen im Arbeitsschutz (insbes. Betriebssicherheitsverordnung) zur Angleichung der technischen Sicherheitsstandards f{\"u}r Produkte und der sozialen Standards f{\"u}r die Besch{\"a}ftigten im Zusmmanhang mit dem fortschreitenden Zusammenwachsen der Mitgliedsstaaten der Europ{\"a}ischen.}, subject = {Arbeitsschutz}, language = {de} } @inproceedings{WeferlingDonathPetzoldetal.2003, author = {Weferling, Ulrich and Donath, Dirk and Petzold, Frank and Thurow, Torsten}, title = {Neue Techniken in der Bestandserfassung}, doi = {10.25643/bauhaus-universitaet.373}, url = {http://nbn-resolving.de/urn:nbn:de:gbv:wim2-20111215-3734}, year = {2003}, abstract = {Die digitale Unterst{\"u}tzung der Planungsprozesse ist ein aktueller Forschungs- und Arbeitsschwerpunkt der Professur Informatik in der Architektur (InfAR) und der Juniorprofessur Architekturinformatik der Fakult{\"a}t Architektur an der Bauhaus-Universit{\"a}t Weimar. Verankert in dem DFG Sonderforschungsbereich 524 >Werkzeuge und Konstruktionen f{\"u}r die Revitalisierung von Bauwerken< entstehen Konzepte und Prototypen f{\"u}r eine fachlich orientierte Planungsunterst{\"u}tzung. Als ein Teilaspekt wird in diesem Beitrag gezeigt, wie das Handaufmaß unter Einsatz modernen taktiler Erfassungsmethoden eine ganz neue Bedeutung f{\"u}r die Datenerfassung gewinnen kann. Das Potenzial der verschiedenen Verfahren zur Koordinatenbestimmung mit taktilen Werkzeugen wird evaluiert. Daraus wird eine Strategie entwickelt, die f{\"u}r die unterschiedlichen Notwendigkeiten im Planungsfortschritt den optimierten Einsatz der taktilen Erfassung in Kombination mit klassischen Erfassungsmethoden aufzeigt. Die Realisierbarkeit eines derartigen Konzeptes wird durch Fallstudien und m{\"o}gliche Ablaufszenarien f{\"u}r einzelne Verfahren nachgewiesen. Durch die Integration taktiler Messverfahren in die Bestandserfassung kann erreicht werden, dass - relevante (Geometrie-) Informationen in ein umfassendes Bauwerksmodell integriert werden k{\"o}nnen, - die Bauaufnahme wieder im direkten Kontakt zum Bauaufnahmeobjekt erfolgen kann und - die Verfahren so einfach und leicht von allen Beteiligten eingesetzt werden k{\"o}nnen, um die Bauaufnahme und die Planung wieder miteinander zu verzahnen.}, subject = {Geb{\"a}ude}, language = {de} } @inproceedings{WasserfuhrScherer1997, author = {Wasserfuhr, R. and Scherer, Raimar J.}, title = {Information Management in the Concurrent Design Process}, doi = {10.25643/bauhaus-universitaet.445}, url = {http://nbn-resolving.de/urn:nbn:de:gbv:wim2-20111215-4456}, year = {1997}, abstract = {Former achievements for integrated information management have concentrated on interoperability of applications like e.g. CAD, structural analysis or facility management, based on product models introducing additional application independent model layers (core models). In the last years it has become clear, that besides interoperability of autonomous applications, the concurrent processes of model instantiation and evolution have to be modeled, including the relationship to available project resources, persons, legal requirements and communication infrastructure. This paper discusses some basic concepts for an emerging methodology relating the fields of product modeling, project management and workflow systems by elaborating the concept of a process model, which gives a decomposition of the project goals into executable activities. Integrated information management systems should be related to process models to detect pending activities, deadlocks and alternatives of execution. According to the heterogeneous nature of project communication processes, a method for dynamic classification of ad-hoc activities is suggested, that complements predefined highlevel process definitions. In a brief outline of the system architecture, we show how sophisticated information management systems can be broadly made available by using conventional Internet technologies.}, subject = {Informationsmanagement}, language = {en} } @inproceedings{WartewigHoerning1976, author = {Wartewig-H{\"o}rning, Jutta}, title = {Zur Pflege des gegenst{\"a}ndlichen Erbes des Bauhauses am Beispiel der Kunstsammlungen zu Weimar}, doi = {10.25643/bauhaus-universitaet.871}, url = {http://nbn-resolving.de/urn:nbn:de:gbv:wim2-20111215-8712}, year = {1976}, abstract = {Wissenschaftliches Kolloquium vom 27. bis 29. Oktober 1976 in Weimar an der Hochschule f{\"u}r Architektur und Bauwesen zum Thema: '50 Jahre Bauhaus Dessau'}, subject = {Weimar / Bauhaus-Museum}, language = {de} } @inproceedings{WardThorpePrice2004, author = {Ward, Michael and Thorpe, Tony and Price, Andrew}, title = {The Re-use of Site Data to Inform Business Processes}, doi = {10.25643/bauhaus-universitaet.130}, url = {http://nbn-resolving.de/urn:nbn:de:gbv:wim2-20111215-1308}, year = {2004}, abstract = {The increased implementation of site data capture technologies invariably results in an increase in data warehousing and database technologies to store captured data. However, restricted use of data beyond the initial application could potentially result in a loss of understanding of site processes. This could in turn lead to poor decision making at production, tactical and strategic levels. Concrete usage data have been collected from two piling processes. These data have been analysed and the results highlighted potential improvements that could be made to existing site management and estimating processes. A cost benefit analysis has been used to support decision making at the strategic level where the identified improvements require capital expenditure.}, subject = {Bauwerk}, language = {en} } @inproceedings{Wangler1999, author = {Wangler, Ortwin}, title = {Sicher abbrechen - pr{\"a}ventiver Arbeitsschutz beim selektiven Abbruch von Geb{\"a}uden}, doi = {10.25643/bauhaus-universitaet.828}, url = {http://nbn-resolving.de/urn:nbn:de:gbv:wim2-20111215-8289}, year = {1999}, subject = {Arbeitsschutz}, language = {de} } @inproceedings{Walukiewicz2003, author = {Walukiewicz, Henryk}, title = {Identification of Structural Models as a Problem of Group Representation Theory}, doi = {10.25643/bauhaus-universitaet.372}, url = {http://nbn-resolving.de/urn:nbn:de:gbv:wim2-20111215-3725}, year = {2003}, abstract = {It has been shown that symmetries of moment functions of stochastic processes play an important role in identification of systems. They provide the group-theoretic method of choice of the model structure and model parameters. In the first stage the group-theoretic analysis of some fundamental concepts of stochastic dynamics: stochastic processes and functional series of Volterra-Wiener type has been undertaken. The analysis of group representations of the moment functions of order m for stochastic processes is the basic, original concept of the work. The following groups: symmetric Sm, special affine SAff(m), general linear GL(n, R), GL(n,C) and their subgroups play the main role in the models. In the second stage the informational entropy has been introduced as a measure of the randomness in the identified models. The group-theoretic approach underlines the unity of the nonlinear system identification and leads to useful engineering results in the range of the second-order (stochastic) theory.}, subject = {Bauwerk}, language = {en} } @inproceedings{WallFoersterNeumannetal., author = {Wall, Wolfgang A. and F{\"o}rster, Christiane and Neumann, Malte and Ramm, Ekkehard}, title = {ADVANCES IN FLUID-STRUCTURE INTERACTION}, editor = {G{\"u}rlebeck, Klaus and K{\"o}nke, Carsten}, organization = {Bauhaus-Universit{\"a}t Weimar}, doi = {10.25643/bauhaus-universitaet.2916}, url = {http://nbn-resolving.de/urn:nbn:de:gbv:wim2-20170327-29161}, pages = {17}, abstract = {For the dynamic behavior of lightweight structures like thin shells and membranes exposed to fluid flow the interaction between the two fields is often essential. Computational fluid-structure interaction provides a tool to predict this interaction and complement or eventually replace expensive experiments. Partitioned analyses techniques enjoy great popularity for the numerical simulation of these interactions. This is due to their computational superiority over simultaneous, i.e. fully coupled monolithic approaches, as they allow the independent use of suitable discretization methods and modular analysis software. We use, for the fluid, GLS stabilized finite elements on a moving domain based on the incompressible instationary Navier-Stokes equations, where the formulation guarantees geometric conservation on the deforming domain. The structure is discretized by nonlinear, three-dimensional shell elements. Commonly used sequential staggered coupling schemes may exhibit instabilities due to the so-called artificial added mass effect. As best remedy to this problem subiterations should be invoked to guarantee kinematic and dynamic continuity across the fluid-structure interface. Since iterative coupling algorithms are computationally very costly, their convergence rate is very decisive for their usability. To ensure and accelerate the convergence of this iteration the updates of the interface position are relaxed. The time dependent, 'optimal' relaxation parameter is determined automatically without any user-input via exploiting a gradient method or applying an Aitken iteration scheme.}, subject = {Architektur }, language = {en} } @inproceedings{Waldmann2003, author = {Waldmann, J{\"o}rg}, title = {Dezentrale mikrocontrollerbasierende Messtechnik in der in der Leittechnik historischer Geb{\"a}ude}, doi = {10.25643/bauhaus-universitaet.370}, url = {http://nbn-resolving.de/urn:nbn:de:gbv:wim2-20111215-3702}, year = {2003}, abstract = {Im Hintergrund stehen historische Bibliotheksgeb{\"a}ude, deren Best{\"a}nde durch ung{\"u}nstige klimatische Verh{\"a}ltnisse in den Innenr{\"a}umen ihrer der Erhaltung gef{\"a}hrdet sind. Damit Maßnahmen der Geb{\"a}udeleittechnik geplant werden k{\"o}nnen, ist die Aufnahme der Umweltgr{\"o}ßen {\"u}ber einen l{\"a}ngeren Zeitraum erforderlich. Im speziellen zielen die Maßnahmen auf die Klimatechnik mit ihren Aufgaben der Heizungsregelung, Bel{\"u}ftungsanlagen. Ein Messsystem kann mit dem Mikrocontroller Beck >IPC@CHIP< realisiert werden. Das an der FH Fulda entwickelte Messsystem nimmt im Abstand von drei Minuten Messwerte von Lufttemperatur, Luftfeuchte, Luftdruck und UV-Intensit{\"a}t auf. Sie gelten als beeinflussende Gr{\"o}ßen der organischen Materialien des Fundus. Die Messwerte werden in einer elektronischen Schaltung vorverarbeitet und einem Mikrocontroller zugef{\"u}hrt. Dieser archiviert die Daten fortlaufend {\"u}ber einen Zeitraum bis zu sieben Jahren. Der Mikrocontroller ist mit seinem internen Flash-Speicher und der Ethernet-Schnittstelle in der Lage, die gesammelten Messwerte als Webserver zur Verf{\"u}gung zu stellen. Wenn das Messsystem an das Internet angeschlossen wird, k{\"o}nnen die Klimaverl{\"a}ufe in einem herk{\"o}mmlichen Internet-Browser dargestellt werden. Daf{\"u}r wurde mit der Programmiersprache Java eine Visualisierungsoberfl{\"a}che erstellt. Sie bietet die verschiedensten M{\"o}glichkeiten der Datenauswertung. Dazu geh{\"o}rt der Zugriff auf jeden einzelnen Messwert, auf Tages-, Monats- und Jahresmittelwerte und die Errechnung von Minima und Maxima. Der Flash-Speicher wurde auch dazu benutzt, Dokumentation und Bedienhinweise abzulegen, die somit {\"u}ber das Netzwerk abrufbar sind. Das gesamte Messsystem ist in ein Buch integriert und erfasst seit August 2002 die klimatischen Verh{\"a}ltnisse der Herzogin-Anna-Amalia-Bibliothek in Weimar. Nach den erfolgten Langzeitmessungen kann dar{\"u}ber entschieden werden, welchen Beitrag eine Geb{\"a}udeleittechnik mit integrierter Klimaregelung zur Werterhaltung der Gegenst{\"a}nde leisten kann.}, subject = {Weimar / Herzogin-Anna-Amalia-Bibliothek}, language = {de} } @inproceedings{WainainaRichterKirchheim2000, author = {Wainaina, Simon and Richter, Matthias and Kirchheim, Alfred}, title = {The Use of Activity Chain Models to Analyse Stochastic Travel Demand}, doi = {10.25643/bauhaus-universitaet.615}, url = {http://nbn-resolving.de/urn:nbn:de:gbv:wim2-20111215-6157}, year = {2000}, abstract = {For analysis and planing of transport networks detailed information concerning travel sequences is required. The paper examines an activity chain model to determine stochastic travel demand which individual generates in order to participate in activity or sequence of activities over the day. The transition from one activity to another depends on the activity participation decision, which is made sequentially and is constrained in space and time. Activity chains derived from travel survey data are used as a base to develop a more realistic model than conventional discrete trip models. Probabilistic concepts and statistical procedures are used to estimate characteristics of travel demand such as the number of daily out-of-home activities and transition probability from one activity to another participated by homogeneous behavioural groups. In addition, the paper compares the model for two different sized towns.}, subject = {Verkehr}, language = {en} } @inproceedings{VoellmeckeSchwendnerHoetal., author = {V{\"o}llmecke, Lars and Schwendner, Sascha and Ho, Ai Phien and Fischer, Jens and Seim, Werner}, title = {Assessment of nailed connections in existing structures}, doi = {10.25643/bauhaus-universitaet.6361}, url = {http://nbn-resolving.de/urn:nbn:de:gbv:wim2-20230609-63615}, pages = {7}, abstract = {This paper presents the development of an assessment scheme for a visual qualitative evaluation of nailed connections in existing structures, such as board trusses. In terms of further use and preservation, a quick visual inspection will help to evaluate the quality of a structure regarding its load-bearing capacity and deformation behaviour. Tests of old and new nailed joints in combination with a rating scheme point out the correlation between the load-bearing capacity and condition of a joint. Old joints of comparatively good condition tend to exhibit better results than those of poor condition. Moreover, aged joints are generally more load-bearing than newly assembled ones.}, subject = {Holzbau}, language = {en} } @inproceedings{VilceanuAbrahamczykMorgenthal, author = {V{\^i}lceanu, Victor and Abrahamczyk, Lars and Morgenthal, Guido}, title = {Nonlinear Analysis of Structures: Wind Induced Vibrations}, doi = {10.25643/bauhaus-universitaet.4033}, url = {http://nbn-resolving.de/urn:nbn:de:gbv:wim2-20191122-40337}, pages = {183}, abstract = {The proceedings at hand are the result of the International Master Course Module: "Nonlinear Analysis of Structures: Wind Induced Vibrations" held at the Faculty of Civil Engineering at Bauhaus-University Weimar, Germany in the summer semester 2019 (April - August). This material summarizes the results of the project work done throughout the semester, provides an overview of the topic, as well as impressions from the accompanying programme. Wind Engineering is a particular field of Civil Engineering that evaluates the resistance of structures caused by wind loads. Bridges, high-rise buildings, chimneys and telecommunication towers might be susceptible to wind vibrations due to their increased flexibility, therefore a special design is carried for this aspect. Advancement in technology and scientific studies permit us doing research at small scale for more accurate analyses. Therefore scaled models of real structures are built and tested for various construction scenarios. These models are placed in wind tunnels where experiments are conducted to determine parameters such as: critical wind speeds for bridge decks, static wind coefficients and forces for buildings or bridges. The objective of the course was to offer insight to the students into the assessment of long-span cable-supported bridges and high-rise buildings under wind excitation. The participating students worked in interdisciplinary teams to increase their knowledge in the understanding and influences on the behaviour of wind-sensitive structures.}, subject = {Ingenieurbau}, language = {en} } @inproceedings{VuWerner, author = {Vu, Anh Tuan and Werner, Frank}, title = {OPTIMIZATION OF STEEL STRUCTURES BASED ON DIFFERENTIAL EVOLUTION ALGORITHM}, editor = {G{\"u}rlebeck, Klaus and K{\"o}nke, Carsten}, organization = {Bauhaus-Universit{\"a}t Weimar}, issn = {1611-4086}, doi = {10.25643/bauhaus-universitaet.2900}, url = {http://nbn-resolving.de/urn:nbn:de:gbv:wim2-20170314-29007}, pages = {11}, abstract = {Steel structural design is an integral part of the building construction process. So far, various methods of design have been applied in practice to satisfy the design requirements. This paper attempts to acquire the Differential Evolution Algorithms in automatization of specific synthesis and rationalization of design process. The capacity of the Differential Evolution Algorithms to deal with continuous and/or discrete optimization of steel structures is also demonstrated. The goal of this study is to propose an optimal design of steel frame structures using built-up I-sections and/or a combination of standard hot-rolled profiles. All optimized steel frame structures in this paper generated optimization solutions better than the original solution designed by the manufacturer. Taking the criteria regarding the quality and efficiency of the practical design into consideration, the produced optimal design with the Differential Evolution Algorithms can completely replace conventional design because of its excellent performance.}, subject = {Angewandte Informatik}, language = {en} } @inproceedings{VossCoulonGebhardt1997, author = {Voß, A. and Coulon, Carl-Helmut and Gebhardt, F.}, title = {KI-Methoden beim Entwurf komplexer Geb{\"a}ude}, doi = {10.25643/bauhaus-universitaet.420}, url = {http://nbn-resolving.de/urn:nbn:de:gbv:wim2-20111215-4207}, year = {1997}, abstract = {Anhand von Ergebnissen aus dem FABEL-Projekt wird gezeigt, welche Beitr{\"a}ge Methoden der K{\"u}nstlichen Intelligenz, insbesondere der Wissensverarbeitung beim Entwurf komplexer Geb{\"a}ude leisten k{\"o}nnen. Exemplarisch werden spezialisierte wissensintensive Methoden, und allgemeine fallbasierte Methoden zum Retrieval und zur Wiederverwendung fr{\"u}herer Entw{\"u}rfe vorgestellt. Es werden Fragen der Integration von Wissen, F{\"a}llen und Daten diskutiert. Der Prototyp des FABEL-Projekts verwendet die Metapher der virtuellen Baustelle, um die verschiedenen Methoden als Planungswerkzeuge in einem CAD-System integriert anzubieten. Ein Planungsmodell dient der zus{\"a}tzlichen Orientierung des Planers. Die Ergebnisse sind interessant f{\"u}r den Entwurf komplexer Unikate, d{\"u}rften aber auch als Zusatz zu elektronisch angebotenen Katalogen relevant sein.}, subject = {Bauentwurf}, language = {de} } @inproceedings{Vorechovsky, author = {Vorechovsk{\´y}, Miroslav}, title = {SIMULATION OF SIMPLY CROSS CORRELATED RANDOM FIELDS BY SERIES EXPANSION METHODS}, editor = {G{\"u}rlebeck, Klaus and K{\"o}nke, Carsten}, organization = {Bauhaus-Universit{\"a}t Weimar}, issn = {1611-4086}, doi = {10.25643/bauhaus-universitaet.2899}, url = {http://nbn-resolving.de/urn:nbn:de:gbv:wim2-20170314-28995}, pages = {13}, abstract = {A practical framework for generating cross correlated fields with a specified marginal distribution function, an autocorrelation function and cross correlation coefficients is presented in the paper. The contribution promotes a recent journal paper [1]. The approach relies on well known series expansion methods for simulation of a Gaussian random field. The proposed method requires all cross correlated fields over the domain to share an identical autocorrelation function and the cross correlation structure between each pair of simulated fields to be simply defined by a cross correlation coefficient. Such relations result in specific properties of eigenvectors of covariance matrices of discretized field over the domain. These properties are used to decompose the eigenproblem which must normally be solved in computing the series expansion into two smaller eigenproblems. Such decomposition represents a significant reduction of computational effort. Non-Gaussian components of a multivariate random field are proposed to be simulated via memoryless transformation of underlying Gaussian random fields for which the Nataf model is employed to modify the correlation structure. In this method, the autocorrelation structure of each field is fulfilled exactly while the cross correlation is only approximated. The associated errors can be computed before performing simulations and it is shown that the errors happen especially in the cross correlation between distant points and that they are negligibly small in practical situations.}, subject = {Angewandte Informatik}, language = {en} } @inproceedings{VolkovaKazakevitch2003, author = {Volkova, Viktorija and Kazakevitch, M. I.}, title = {Application of Qualitative Methods to Research of Polyharmonic Oscillations}, doi = {10.25643/bauhaus-universitaet.368}, url = {http://nbn-resolving.de/urn:nbn:de:gbv:wim2-20111215-3684}, year = {2003}, abstract = {The development of the qualitative methods of investigation of dynamic systems, suggested by the authors, is the effective means for identification of dynamic systems. The results of the extensive investigations of the behaviour of linear dynamic systems and symmetrical system with double well potential under polyharmonic excitation are given in the paper. Phase space of dynamic systems is multi-dimensional. Each point of this space is characterized by not less than four co-ordinates. In particular: displacement, velocity, acceleration and time. Real space has three dimensions. It is more convenient for the analysis. We consider the phase space as limited to three dimensions, namely displacement, velocity and acceleration. Another choice of parameters of phase planes is also possible [1, 2]. Phase trajectory on a plane is of the greatest interest. It is known that accelerations of points are more sensitive to deviations of oscillations from harmonic ones. It is connected with the fact that power criteria on it are interpreted most evidently. Besides, dependence is back symmetric relative to axis of the diagram of elastic characteristic. Only the phase trajectories allow establishing a type and a level of non-linearity of a system. The results of the extensive investigations of the dynamic systems behaviour under polyharmonic excitation are given in the paper. The use of the given phase trajectories enables us to determine with a high degree of reliability the following peculiarities: - presence or absence of non-linear character of behaviour of a dynamic system; - type of non-linearity; - type of dynamic process (oscillations of the basic tone, combinative oscillations, chaotic oscillations.). Unlike existing asymptotic and stochastic methods of identification of dynamic systems, the use of the suggested technique is not connected with the use of a significant amount of computing procedures, and also it has a number of advantages at the investigation of complicated oscillations.}, subject = {Dynamik}, language = {en} } @inproceedings{Volkova, author = {Volkova, Viktorija}, title = {APPLICTION OF THE PHASE TRAJECTORIES MAPPING TO IDENTIFICATION}, editor = {G{\"u}rlebeck, Klaus and K{\"o}nke, Carsten}, organization = {Bauhaus-Universit{\"a}t Weimar}, doi = {10.25643/bauhaus-universitaet.3032}, url = {http://nbn-resolving.de/urn:nbn:de:gbv:wim2-20170327-30329}, pages = {7}, abstract = {The reduction of oscillation amplitudes of structural elements is necessary not only for maintenance of their durability and longevity but also for elimination of a harmful effect of oscillations on people and technology operations. The dampers are widely applied for this purpose. One of the most widespread models of structural friction forces having piecewise linear relation to displacement was analysed. T The author suggests the application of phase trajectories mapping in plane "acceleration - displacement". Unlike the trajectories mapping in a plane "velocity - displacement", they don't require large number of geometrical constructions for identification of the characteristics of dynamic systems. It promotes improving the accuracy. The analytical assumptions had been verified by numerical modeling. The results show good enough coincide between numerical and analytical estimation of dissipative characteristic.}, subject = {Architektur }, language = {en} } @inproceedings{VolkovKirschkeChelyshkovetal., author = {Volkov, Andrey and Kirschke, Heiko and Chelyshkov, Pavel and Sedov, Artem and Lysenko, Denis}, title = {THE CRITERIA'S SET WITH INVARIANT DESIGN BUILDING ELEMENTS ON THE BASE OF THREE IMPUTATIONS: "CONVENIENCE", "SAFETY" AND "ENERGY-EFFICIENCY"}, series = {Digital Proceedings, International Conference on the Applications of Computer Science and Mathematics in Architecture and Civil Engineering : July 20 - 22 2015, Bauhaus-University Weimar}, booktitle = {Digital Proceedings, International Conference on the Applications of Computer Science and Mathematics in Architecture and Civil Engineering : July 20 - 22 2015, Bauhaus-University Weimar}, editor = {G{\"u}rlebeck, Klaus and Lahmer, Tom}, organization = {Bauhaus-Universit{\"a}t Weimar}, issn = {1611-4086}, doi = {10.25643/bauhaus-universitaet.2795}, url = {http://nbn-resolving.de/urn:nbn:de:gbv:wim2-20170314-27956}, pages = {6}, abstract = {The paper deals with the formalization of the criteria for constructing building management systems. We consider three criteria - "convenience", "safety" and "energyefficiency". For each objective proposed method of calculation.}, subject = {Angewandte Informatik}, language = {en} } @inproceedings{Vogler1976, author = {Vogler, Sebastian}, title = {Bibliographie der in der DDR erschienenen Literatur zum Bauhaus}, doi = {10.25643/bauhaus-universitaet.866}, url = {http://nbn-resolving.de/urn:nbn:de:gbv:wim2-20111215-8664}, year = {1976}, abstract = {Wissenschaftliches Kolloquium vom 27. bis 29. Oktober 1976 in Weimar an der Hochschule f{\"u}r Architektur und Bauwesen zum Thema: '50 Jahre Bauhaus Dessau'}, subject = {Bauhaus}, language = {de} } @inproceedings{Vieira, author = {Vieira, Nelson}, title = {SOME RESULTS IN FRACTIONAL CLIFFORD ANALYSIS}, series = {Digital Proceedings, International Conference on the Applications of Computer Science and Mathematics in Architecture and Civil Engineering : July 20 - 22 2015, Bauhaus-University Weimar}, booktitle = {Digital Proceedings, International Conference on the Applications of Computer Science and Mathematics in Architecture and Civil Engineering : July 20 - 22 2015, Bauhaus-University Weimar}, editor = {G{\"u}rlebeck, Klaus and Lahmer, Tom}, organization = {Bauhaus-Universit{\"a}t Weimar}, issn = {1611-4086}, doi = {10.25643/bauhaus-universitaet.2825}, url = {http://nbn-resolving.de/urn:nbn:de:gbv:wim2-20170314-28256}, pages = {6}, abstract = {What is nowadays called (classic) Clifford analysis consists in the establishment of a function theory for functions belonging to the kernel of the Dirac operator. While such functions can very well describe problems of a particle with internal SU(2)-symmetries, higher order symmetries are beyond this theory. Although many modifications (such as Yang-Mills theory) were suggested over the years they could not address the principal problem, the need of a n-fold factorization of the d'Alembert operator. In this paper we present the basic tools of a fractional function theory in higher dimensions, for the transport operator (alpha = 1/2 ), by means of a fractional correspondence to the Weyl relations via fractional Riemann-Liouville derivatives. A Fischer decomposition, fractional Euler and Gamma operators, monogenic projection, and basic fractional homogeneous powers are constructed.}, subject = {Angewandte Informatik}, language = {en} } @inproceedings{Vasilkov2003, author = {Vasilkov, Dmitry M.}, title = {Surface design based upon a combined mesh}, doi = {10.25643/bauhaus-universitaet.367}, url = {http://nbn-resolving.de/urn:nbn:de:gbv:wim2-20111215-3671}, year = {2003}, abstract = {The subject of this talk is the problem of surface design based upon a mesh that may contain both triangular and quadrangular domains. We investigate the cases when such a combined mesh occurs more preferable for bivariate data interpolation than a pure triangulation. First we describe a modification of the well-known flipping algorithm that constructs a locally optimal combined mesh with a predefined quality criterion. Then we introduce two quality measures for triangular and quadrangular domains and present the results of a computational experiment that compares integral interpolation errors and errors in gradients caused by the piecewise surface models produced by the flipping algorithm with the introduced quality measures. The experiment shows that triangular meshes with the Delaunay quality measure provide better interpolation accuracy only if the interpolated function is strictly convex, as well as a saddle-shaped function is better interpolated by bilinear patches within a combined mesh. For a randomly shaped function combined meshes demonstrate smaller error values and better stability in compare with pure triangulations. At the end we consider other resources for mesh improvement, such as excluding >bad< points from the input set for the mesh generating procedure. Because the function values at these points should not be lost, some linear or bilinear patches are replaced by nonlinear patches that pass through the excluded points.}, subject = {Oberfl{\"a}che}, language = {en} } @inproceedings{Vasileva, author = {Vasileva, Iuliia}, title = {THE PROBLEM OF PARTIAL REINFORCING AN INTERFACE CRACK EDGE BY A RIGID PATCH PLATE UNDER IN-PLANE AND ANTIPLANE LOADS}, series = {Digital Proceedings, International Conference on the Applications of Computer Science and Mathematics in Architecture and Civil Engineering : July 20 - 22 2015, Bauhaus-University Weimar}, booktitle = {Digital Proceedings, International Conference on the Applications of Computer Science and Mathematics in Architecture and Civil Engineering : July 20 - 22 2015, Bauhaus-University Weimar}, editor = {G{\"u}rlebeck, Klaus and Lahmer, Tom}, organization = {Bauhaus-Universit{\"a}t Weimar}, issn = {1611-4086}, doi = {10.25643/bauhaus-universitaet.2824}, url = {http://nbn-resolving.de/urn:nbn:de:gbv:wim2-20170314-28242}, pages = {5}, abstract = {The stress state of a piecewise-homogeneous elastic body, which has a semi-infinite crack along the interface, under in-plane and antiplane loads is considered. One of the crack edges is reinforced by a rigid patch plate on a finite interval adjacent to the crack tip. The crack edges are loaded with specified stresses. The body is stretched at infinity by specified stresses. External forces with a given principal vector and moment act on the patch plate. The problem reduces to a Riemann-Hilbert boundary-value matrix problem with a piecewise-constant coefficient for two complex potentials in the plane case and for one in the antiplane case. The complex potentials are found explicitly using a Gaussian hypergeometric function. The stress state of the body close to the ends of the patch plate, one of which is also simultaneously the crack tip, is investigated. Stress intensity factors near the singular points are determined.}, subject = {Angewandte Informatik}, language = {en} } @inproceedings{vanRooyenOlivier2004, author = {van Rooyen, G.C. and Olivier, A. H.}, title = {Notes on structural analysis in a distributed collaboratory}, doi = {10.25643/bauhaus-universitaet.145}, url = {http://nbn-resolving.de/urn:nbn:de:gbv:wim2-20111215-1451}, year = {2004}, abstract = {The worldwide growth of communication networks and associated technologies provide the basic infrastructure for new ways of executing the engineering process. Collaboration amongst team members seperated in time and location is of particular importance. Two broad themes can be recognized in research pertaining to distributed collaboration. One theme focusses on the technical and technological aspects of distributed work, while the other emphasises human aspects thereof. The case of finite element structural analysis in a distributed collaboratory is examined in this paper. An approach is taken which has its roots in human aspects of the structural analysis task. Based on experience of how structural engineers currently approach and execute this task while utilising standard software designed for use on local workstations only, criteria are stated for a software architechture that could support collaborative structural analysis. Aspects of a pilot application and the results of qualitative performance measurements are discussed.}, subject = {Ingenieurbau}, language = {en} } @inproceedings{Vaarmann2003, author = {Vaarmann, Otu}, title = {On the Solution of Nonlinear Optimization Problems of High Dimension}, doi = {10.25643/bauhaus-universitaet.366}, url = {http://nbn-resolving.de/urn:nbn:de:gbv:wim2-20111215-3669}, year = {2003}, abstract = {A lot of real-life problems lead frequently to the solution of a complicated (large scale, multicriteria, unstable, nonsmooth etc.) nonlinear optimization problem. In order to cope with large scale problems and to develop many optimum plans a hiearchical approach to problem solving may be useful. The idea of hierarchical decision making is to reduce the overall complex problem into smaller and simpler approximate problems (subproblems) which may thereupon treated independently. One way to break a problem into smaller subproblems is the use of decomposition-coordination schemes. For finding proper values for coordination parameters in convex programming some rapidly convergent iterative methods are developed, their convergence properties and computational aspects are examined. Problems of their global implementation and polyalgorithmic approach are discussed as well.}, subject = {Nichtlineare Optimierung}, language = {en} } @inproceedings{Ursprung, author = {Ursprung, Philip}, title = {OUT OF EMPIRE}, editor = {Faschingeder, Kristian and Jormakka, Kari and Korrek, Norbert and Pfeifer, Olaf and Zimmermann, Gerd}, publisher = {Verlag der Bauhaus-Universit{\"a}t}, address = {Weimar}, organization = {Bauhaus-Universit{\"a}t Weimar}, isbn = {978-3-86068-417-7}, doi = {10.25643/bauhaus-universitaet.3044}, url = {http://nbn-resolving.de/urn:nbn:de:gbv:wim2-20170329-30446}, pages = {12}, abstract = {Philip Ursprung studierte Kunstgeschichte, Allgemeine Geschichte und Germanistik in Genf, Wien und Berlin. Er wurde 1993 an der FU Berlin promoviert und 1999 an der ETH Z{\"u}rich habilitiert. Er unterrichtete an den Universit{\"a}ten Genf, Basel und Z{\"u}rich, an der ETH Z{\"u}rich, der Kunsthochschule Berlin-Weissensee und der Universit{\"a}t der K{\"u}nste Berlin. 2001-2005 war er Nationalfonds- F{\"o}rderungsprofessor f{\"u}r Geschichte der Gegenwartskunst am Departement Architektur der ETH Z{\"u}rich. Seit 2005 ist er Professor f{\"u}r Moderne und zeitgen{\"o}ssische Kunst an der Universit{\"a}t Z{\"u}rich. 2007 war er Gastprofessor an der Graduate School of Architecture, Planning and Preservation der Columbia University New York. Er war Gastkurator am Museum f{\"u}r Gegenwartskunst in Basel, am Canadian Centre for Architecture in Montreal und der Graduate School for Architecture, Planning and Preservation der Columbia University New York. Er ist Autor von Grenzen der Kunst: Allan Kaprow und das Happening, Robert Smithson und die Land Art (M{\"u}nchen, 2003), Herausgeber von Herzog \& de Meuron: Naturgeschichte (Montreal und Baden 2002), sowie Ko-autor von Images: A Picture Book of Architecture (M{\"u}nchen 2004), Minimal Architecture (M{\"u}nchen, 2003) und Studio Olafur Eliasson: An Encyclopedia (K{\"o}ln, 2008). Zuletzt erschien Caruso St John: Almost Everything (Barcelona, 2008).}, subject = {Architekturtheorie}, language = {de} } @inproceedings{UngerKoenke, author = {Unger, J{\"o}rg F. and K{\"o}nke, Carsten}, title = {DISCRETE CRACK SIMULATION OF CONCRETE USING THE EXTENDED FINITE ELEMENTMETHOD}, editor = {G{\"u}rlebeck, Klaus and K{\"o}nke, Carsten}, organization = {Bauhaus-Universit{\"a}t Weimar}, doi = {10.25643/bauhaus-universitaet.3030}, url = {http://nbn-resolving.de/urn:nbn:de:gbv:wim2-20170327-30303}, pages = {12}, abstract = {The extended finite element method (XFEM) offers an elegant tool to model material discontinuities and cracks within a regular mesh, so that the element edges do not necessarily coincide with the discontinuities. This allows the modeling of propagating cracks without the requirement to adapt the mesh incrementally. Using a regular mesh offers the advantage, that simple refinement strategies based on the quadtree data structure can be used to refine the mesh in regions, that require a high mesh density. An additional benefit of the XFEM is, that the transmission of cohesive forces through a crack can be modeled in a straightforward way without introducing additional interface elements. Finally different criteria for the determination of the crack propagation angle are investigated and applied to numerical tests of cracked concrete specimens, which are compared with experimental results.}, subject = {Architektur }, language = {en} } @inproceedings{UngerKoenke, author = {Unger, J{\"o}rg F. and K{\"o}nke, Carsten}, title = {PARAMETER IDENTIFICATION OF MESOSCALE MODELS FROM MACROSCOPIC TESTS USING BAYESIAN NEURAL NETWORKS}, editor = {G{\"u}rlebeck, Klaus and K{\"o}nke, Carsten}, organization = {Bauhaus-Universit{\"a}t Weimar}, issn = {1611-4086}, doi = {10.25643/bauhaus-universitaet.2898}, url = {http://nbn-resolving.de/urn:nbn:de:gbv:wim2-20170314-28984}, pages = {5}, abstract = {In this paper, a parameter identification procedure using Bayesian neural networks is proposed. Based on a training set of numerical simulations, where the material parameters are simulated in a predefined range using Latin Hypercube sampling, a Bayesian neural network, which has been extended to describe the noise of multiple outputs using a full covariance matrix, is trained to approximate the inverse relation from the experiment (displacements, forces etc.) to the material parameters. The method offers not only the possibility to determine the parameters itself, but also the accuracy of the estimate and the correlation between these parameters. As a result, a set of experiments can be designed to calibrate a numerical model.}, subject = {Angewandte Informatik}, language = {en} } @inproceedings{Uhlig2001, author = {Uhlig, Dieter}, title = {Sicherheit und Gesundheitsschutz auf Baustellen - Technische Maßnahmen und Maßnahmen nach Baustellenverordnung}, doi = {10.25643/bauhaus-universitaet.398}, url = {http://nbn-resolving.de/urn:nbn:de:gbv:wim2-20111215-3983}, year = {2001}, abstract = {Vorstellung und Einf{\"u}hrung in die Baustellenverordnung}, subject = {Arbeitsschutz}, language = {de} } @inproceedings{UbyszMajStachonetal., author = {Ubysz, Andrzej and Maj, Marek and Stachon, T. and Rogoza, Agnieszka}, title = {NUMERICAL ANALYSIS OF STRESS DISTRIBUTION IN THE REINFORCED CONCRETE SUPPORT BEAM BRACKET EXPOSED TO DAMAGE}, editor = {G{\"u}rlebeck, Klaus and K{\"o}nke, Carsten}, organization = {Bauhaus-Universit{\"a}t Weimar}, issn = {1611-4086}, doi = {10.25643/bauhaus-universitaet.2869}, url = {http://nbn-resolving.de/urn:nbn:de:gbv:wim2-20170314-28693}, pages = {11}, abstract = {The article presents analysis of stress distribution in the reinforced concrete support beam bracket which is a component of prefabricated reinforced concrete building. The building structure is spatial frame where dilatations were applied. The proper stiffness of its structure is provided by frames with stiff joints, monolithic lift shifts and staircases. The prefabricated slab floors are supported by beam shelves which are shaped as inverted letter 'T'. Beams are supported by the column brackets. In order to lower the storey height and fulfill the architectural demands at the same time, the designer lowered the height of beam at the support zone. The analyzed case refers to the bracket zone where the slant crack. on the support beam bracket was observed. It could appear as a result of overcrossing of allowable tension stresses in reinforced concrete, in the bracket zone. It should be noted that the construction solution applied, i.e. concurrent support of the "undercut" beam on the column bracket causes local concentration of stresses in the undercut zone where the strongest transverse forces and tangent stresses occur concurrently. Some additional rectangular stresses being a result of placing the slab floors on the lower part of beam shelves sum up with those described above.}, subject = {Angewandte Informatik}, language = {en} } @inproceedings{Ubysz, author = {Ubysz, Andrzej}, title = {MATHEMATICAL DESCRIPTION OF SELF-EXCITED VIBRATIONS IN SILO WALLS}, editor = {G{\"u}rlebeck, Klaus and K{\"o}nke, Carsten}, organization = {Bauhaus-Universit{\"a}t Weimar}, doi = {10.25643/bauhaus-universitaet.3029}, url = {http://nbn-resolving.de/urn:nbn:de:gbv:wim2-20170327-30294}, pages = {7}, abstract = {The paper contains a description of dynamic effects in the silo wall during the outflow of a stored material. The work allows for determining the danger of construction damage due to resonant vibrations and is of practical importance by determining the influence of cyclic pressures and vibro-creeping during prolonged use of a silo. The paper was devised as a result of tests on silo walls in semi-technical scale. The model is generally applicable and allows for identification of parameters in real- size silos as well.}, subject = {Architektur }, language = {en} } @inproceedings{Tzanev1997, author = {Tzanev, D.}, title = {Entwurf eines objektorientierten Modells zur Analyse von Schalentragwerken}, doi = {10.25643/bauhaus-universitaet.439}, url = {http://nbn-resolving.de/urn:nbn:de:gbv:wim2-20111215-4397}, year = {1997}, abstract = {In der vorliegenden Arbeit werden dickwandige Schalentragwerke unter statischen Belastungen betrachtet. Die Schale besteht aus verschiedenen Zonen und in jeder Zone wird die Schalenmittelflaeche mittels eines eigenen Geometriegleichungssystems definiert. Das Verzerrungsfeld hat allen 6 unabhaengigen Komponenten unter der Annahme, dass die Querschnittsfasern, die normal zu der Mittelflaeche der unbelasteten Schale sind, geradelinig bleiben. Ein dreidimensionales isoparametrisches finites Element wird vorgeschlagen. Die Berechnung wird mit der Hilfe der Makroelemententechnik durchgefuehrt. In der Arbeit werden die wesentliche Parameter der Schalengeometrie, sowie auch entsprechendes Anteil von Klassen des konstruktiven Modells, definiert. Ein konstruktives Informationsmodell und ein FEM-Informationsmodell, werden entwickelt. Die Informationsverbindungen zwischen den beiden Modellen werden definiert. Diese objektorientierten Modelle werden in Programmiersprache Microsoft Visual C++ v.4.0 unter Windows 95 implementiert. Als numerisches Beispiel wird ein Bogenmauertragwerk betrachtet.}, subject = {Bogenstaumauer}, language = {de} } @inproceedings{TsutsumiHashimoto2004, author = {Tsutsumi, Kazutoshi and Hashimoto, Hiromi}, title = {A Development of the Building Kansei Information Retrieval System}, doi = {10.25643/bauhaus-universitaet.188}, url = {http://nbn-resolving.de/urn:nbn:de:gbv:wim2-20111215-1884}, year = {2004}, abstract = {The purpose of this research is to develop the method to retrieve a building name from the impression of the building. First, the images of the building are registered as database by the questionnaire. Next, the images of the objective building are compared with the degree of matching in image databases, and the building with high synthetic matching degree is retrieved. This system could get a good retrieval result. Moreover, image processing was done, and image databases are trained by neural network from the amount of characteristics of the image, and the retrieval system by image processing was examined.}, subject = {Mehragentensystem}, language = {en} } @inproceedings{TsouLamWong2004, author = {Tsou, Jin-Yeu and Lam, Selina and Wong, Wing Kin Gary}, title = {Design of Rapidly Assembled Isolation Patient Ward - IT-Supported Collaborative Design Process between Architects and Medical Officers}, doi = {10.25643/bauhaus-universitaet.174}, url = {http://nbn-resolving.de/urn:nbn:de:gbv:wim2-20111215-1748}, year = {2004}, abstract = {An important feature of the 2003 SARS outbreak in Canada, Singapore, and Hong Kong was that many health care workers (HCWs) developed SARS after caring for patients with SARS. This has been ascribed to inadequate or ineffective patient isolation. However, it is difficult for dense cities to provide sufficient isolation facilities within a short period of time. This has raised concerns from the public for new strategies in the planning and design of isolation facilities. Considering that SARS or other infectious diseases could seriously damage our society's development, isolation facilities that could be rapidly and economically constructed with appropriate environmental controls are essential. For this reason, the design team of the Department of Architecture collaborated with a special task force from the Faculty of Medicine, who are the frontline medical officers treating the SARS patients, to design Rapidly Assembled Isolation Patient Wards. Both architecture and medicine are well established disciplines, but they have little in common in terms of the mode of knowledge construction and practice. This induced much intellectual exploration and research interest in conducting this study. The process has provided an important reference for cross disciplinary studies between the architectural and medical domains.}, subject = {Architektur}, language = {en} } @inproceedings{TrummerDenzlerSuesse, author = {Trummer, Michael and Denzler, J. and S{\"u}ße, Herbert}, title = {PRECISE 3D MEASUREMENT WITH STANDARD MEANS AND MINIMIAL USER INTERACTION - EXTENDED SINGLE-VIEW RECONSTRUCTION}, editor = {G{\"u}rlebeck, Klaus and K{\"o}nke, Carsten}, organization = {Bauhaus-Universit{\"a}t Weimar}, doi = {10.25643/bauhaus-universitaet.3028}, url = {http://nbn-resolving.de/urn:nbn:de:gbv:wim2-20170327-30282}, pages = {8}, abstract = {The paper proposes a new method for general 3D measurement and 3D point reconstruction. Looking at its features, the method explicitly aims at practical applications. These features especially cover low technical expenses and minimal user interaction, a clear problem separation into steps that are solved by simple mathematical methods (direct, stable and optimal with respect to least error squares), and scalability. The method expects the internal and radial distortion parameters of the used camera(s) as inputs, and a plane quadrangle with known geometry within the scene. At first, for each single picture the 3D position of the reference quadrangle (with respect to each camera coordinate frame) is calculated. These 3D reconstructions of the reference quadrangle are then used to yield the relative external parameters of each camera regarding the first one. With known external parameters, triangulation is finally possible. The differences from other known procedures are outlined, paying attention to the stable mathematical methods (no usage of nonlinear optimization) and the low user interaction with good results at the same time.}, subject = {Architektur }, language = {en} } @inproceedings{TreyerKleinKoenigetal., author = {Treyer, Lukas and Klein, Bernhard and K{\"o}nig, Reinhard and Meixner, Christine}, title = {Lightweight urban computation interchange (LUCI) system}, series = {Proceedings}, booktitle = {Proceedings}, publisher = {FOSS4G}, address = {Seoul, South Korea}, doi = {10.25643/bauhaus-universitaet.2598}, url = {http://nbn-resolving.de/urn:nbn:de:gbv:wim2-20160622-25982}, pages = {12}, abstract = {In this paper we introduce LUCI, a Lightweight Urban Calculation Interchange system, designed to bring the advantages of a calculation and content co-ordination system to small planning and design groups by the means of an open source middle-ware. The middle-ware focuses on problems typical to urban planning and therefore features a geo-data repository as well as a job runtime administration, to coordinate simulation models and its multiple views. The described system architecture is accompanied by two exemplary use cases that have been used to test and further develop our concepts and implementations.}, language = {en} } @inproceedings{TreyerKleinKoenigetal., author = {Treyer, Lukas and Klein, Bernhard and K{\"o}nig, Reinhard and Meixner, Christine}, title = {Lightweight urban computation interchange (LUCI) system}, series = {FOSS4G 2015 Conference}, booktitle = {FOSS4G 2015 Conference}, publisher = {FOSS4G}, address = {Seoul, South Korea}, doi = {10.25643/bauhaus-universitaet.2504}, url = {http://nbn-resolving.de/urn:nbn:de:gbv:wim2-20160118-25042}, pages = {12}, abstract = {In this paper we introduce LUCI, a Lightweight Urban Calculation Interchange system, designed to bring the advantages of a calculation and content co-ordination system to small planning and design groups by the means of an open source middle-ware. The middle-ware focuses on problems typical to urban planning and therefore features a geo-data repository as well as a job runtime administration, to coordinate simulation models and its multiple views. The described system architecture is accompanied by two exemplary use cases that have been used to test and further develop our concepts and implementations.}, subject = {Architektur}, language = {en} } @inproceedings{Traversoni, author = {Traversoni, Leonardo}, title = {MOVEMENT DETECTION AND RECOGNITION WITH QUATERNION WAVELETS}, editor = {G{\"u}rlebeck, Klaus and K{\"o}nke, Carsten}, organization = {Bauhaus-Universit{\"a}t Weimar}, doi = {10.25643/bauhaus-universitaet.3027}, url = {http://nbn-resolving.de/urn:nbn:de:gbv:wim2-20170327-30274}, pages = {8}, abstract = {We show how a Morlet type quaternion wavelet may be tuned to a pair of stereoscopic {\O}lms in order to detect moving objects and calculate its velocity shape volume and other characteristics. We show some practical examples of simple objects taken with normal pocket avi cameras.}, subject = {Architektur }, language = {en} } @inproceedings{TonnWolkowiczThurow2004, author = {Tonn, Christian and Wolkowicz, Christian and Thurow, Torsten}, title = {Plausibility in Architectural Design - DOMEdesign - Software Support for the formal shaping and architect-oriented design of shell structures}, doi = {10.25643/bauhaus-universitaet.181}, url = {http://nbn-resolving.de/urn:nbn:de:gbv:wim2-20111215-1812}, year = {2004}, abstract = {Complex gridshell structures used in architecturally ambitious constructions remain as appealing as ever in the public realm. This paper describes the theory and approach behind the software realisation of a tool which helps in finding the affine self-weight geometry of gridshell structures. The software tool DOMEdesign supports the formal design process of lattice and grid shell structures based upon the laws of physics. The computer-aided simulation of suspension models is used to derive structurally favourable forms for domes and arches subject to compression load, based upon the input of simple architectonic parameters. Irregular plans, three-dimensional topography, a choice different kinds of shell lattice structures and the desired height of the dome are examples of design parameters which can be used to modify the architectural design. The provision of data export formats for structural dimensioning and visualisation software enables engineers and planners to use the data in future planning and to communicate the design to the client.}, subject = {Architektur}, language = {en} } @inproceedings{Tomaz, author = {Tomaz, Gra{\c{c}}a Maria}, title = {ON BLOCK MATRICES OF PASCAL TYPE IN CLIFFORD ANALYSIS}, editor = {G{\"u}rlebeck, Klaus and K{\"o}nke, Carsten}, organization = {Bauhaus-Universit{\"a}t Weimar}, issn = {1611-4086}, doi = {10.25643/bauhaus-universitaet.2897}, url = {http://nbn-resolving.de/urn:nbn:de:gbv:wim2-20170314-28979}, pages = {8}, abstract = {Since the 90-ties the Pascal matrix, its generalizations and applications have been in the focus of a great amount of publications. As it is well known, the Pascal matrix, the symmetric Pascal matrix and other special matrices of Pascal type play an important role in many scientific areas, among them Numerical Analysis, Combinatorics, Number Theory, Probability, Image processing, Sinal processing, Electrical engineering, etc. We present a unified approach to matrix representations of special polynomials in several hypercomplex variables (new Bernoulli, Euler etc. polynomials), extending results of H. Malonek, G.Tomaz: Bernoulli polynomials and Pascal matrices in the context of Clifford Analysis, Discrete Appl. Math. 157(4)(2009) 838-847. The hypercomplex version of a new Pascal matrix with block structure, which resembles the ordinary one for polynomials of one variable will be discussed in detail.}, subject = {Angewandte Informatik}, language = {en} } @inproceedings{ThurowDonathPetzold2003, author = {Thurow, Torsten and Donath, Dirk and Petzold, Frank}, title = {Vision eines mitwachsenden Geometriemodells f{\"u}r die computergest{\"u}tzte Bauaufnahme}, doi = {10.25643/bauhaus-universitaet.365}, url = {http://nbn-resolving.de/urn:nbn:de:gbv:wim2-20111215-3655}, year = {2003}, abstract = {Die digitale Unterst{\"u}tzung der Planungsprozesse ist ein aktueller Forschungs- und Arbeitsschwerpunkt der Professur Informatik in der Architektur (InfAR) und der Juniorprofessur Architekturinformatik der Fakult{\"a}t Architektur an der Bauhaus-Universit{\"a}t Weimar. Verankert in dem DFG Sonderforschungsbereich 524 >Werkzeuge und Konstruktionen f{\"u}r die Revitalisierung von Bauwerken< entstehen Konzepte und Prototypen f{\"u}r eine fachlich orientierte Planungsunterst{\"u}tzung. Als ein Teilaspekt wird in diesem Beitrag die Vision eines mitwachsenden Geometriemodells f{\"u}r das computergest{\"u}tzte Bauaufmaß gezeigt, welches den Aufnehmenden von der Erstbegehung an begleitet. Die bei jeder Phase der Bauaufnahme gewonnenen Geometrieinformationen sollen in den anschließenden Phasen wiederverwendet, konkretisiert bzw. korrigiert werden. Aufmaßtechniken und Geometriemodell sind dabei eng gekoppelt. Verschiedene Sichten auf ein gemeinsames Geometriemodell haben zum Ziel, den Nutzer die Vorteile planarer Abbildungen nutzen zu lassen, ohne die dreidimensionale {\"U}bersicht zu verlieren oder entsprechende r{\"a}umliche Manipulationen zu missen. Das Geometriemodell ist dabei in ein dynamisches Bauwerksmodell eingebettet. Der folgende Beitrag bezieht sich auf die Bauaufnahme mit folgenden Vorgaben: - die Bauaufnahme dient der Vorbereitung der Bauplanung im Bestand - es wird nur eine Genauigkeitsstufe (im Bereich von +/- 10 cm) unterst{\"u}tzt - die Geometrieabbildung des aufzunehmenden Bauwerkes beruht ausschließlich auf ebenen Oberfl{\"a}chen}, subject = {Bauaufnahme}, language = {de} } @inproceedings{ThurowDonath2004, author = {Thurow, Torsten and Donath, Dirk}, title = {A vision of an adaptive geometry model for computer-assisted building surveying}, doi = {10.25643/bauhaus-universitaet.172}, url = {http://nbn-resolving.de/urn:nbn:de:gbv:wim2-20111215-1722}, year = {2004}, abstract = {The paper describes a concept for the step-by-step computer-aided capture and representation of geometric building data in the context of planning-oriented building surveying. Selected aspects of the concept have been implemented and tested as prototypes. The process of step-by-step capture and representation is determined by the order in which the user experiences the building. Only the information that the user knows (can see) or can reasonably deduce is represented. In addition approaches to the flexible combination of different measuring techniques and geometric abstractions are described which are based upon geodetic computational adjustment.}, subject = {Architektur}, language = {en} } @inproceedings{TheilerTauscherTulkeetal., author = {Theiler, Michael and Tauscher, Eike and Tulke, Jan and Riedel, Thomas}, title = {Visualisierung von IFC-Objekten mittels Java3D}, series = {Forum Bauinformatik 2009}, booktitle = {Forum Bauinformatik 2009}, editor = {von Both, Petra and Koch, Volker}, publisher = {Universit{\"a}tsverlag}, address = {Karlsruhe}, isbn = {978-3-86644-396-9}, doi = {10.25643/bauhaus-universitaet.1814}, url = {http://nbn-resolving.de/urn:nbn:de:gbv:wim2-20130107-18149}, pages = {149 -- 159}, abstract = {Die Planung komplexer Bauwerke erfolgt zunehmend mit rechnergest{\"u}tzten Planungswerkzeugen, die den Export von Bauwerksinformationen im STEP-Format auf Grundlage der Industry Foundation Classes (IFC) erm{\"o}glichen. Durch die Verf{\"u}gbarkeit dieser Schnittstelle ist es m{\"o}glich, Bauwerksinformationen f{\"u}r eine weiterf{\"u}hrende applikations{\"u}bergreifende Verarbeitung bereitzustellen. Ein großer Teil der bereitgestellten Informationen bezieht sich auf die geometrische Beschreibung der einzelnen Bauteile. Um den am Bauprozess Beteiligten eine optimale Auswertung und Analyse der Bauwerksinformationen zu erm{\"o}glichen, ist deren Visualisierung unumg{\"a}nglich. Das IFC-Modell stellt diese Daten mit Hilfe verschiedener Geometriemodelle bereit. Der vorliegende Beitrag beschreibt die Visualisierung von IFC-Objekten mittels Java3D. Er beschr{\"a}nkt sich dabei auf die Darstellung von Objekten, deren Geometrie mittels Boundary Representation (Brep) oder Surface-Model-Repr{\"a}sentation beschrieben wird.}, subject = {IFC}, language = {de} }