@inproceedings{RueppelMeissnerGreb2003,
  author    = {R{\"u}ppel, Uwe and Meißner, Udo F. and Greb, Steffen},
  title     = {Vernetzte Bauprozesssteuerung auf der Basis bauteilspezifischer Prozessmuster f{\"u}r geotechnische Konstruktionselemente},
  doi       = {10.25643/bauhaus-universitaet.355},
  url       = {http://nbn-resolving.de/urn:nbn:de:gbv:wim2-20111215-3556},
  year      = {2003},
  abstract  = {Der Beitrag basiert auf den Ans{\"a}tzen und Ergebnissen des Forschungsprojekts >Prozessorientierte Vernetzung von Ingenieurplanungen am Beispiel der Geotechnik<, des DFG-Schwerpunktprogramms 1103 >Vernetzt-kooperative Planungsprozesse im Konstruktiven Ingenieurbau<. Ziel ist die Entwicklung einer netzwerkbasierten Kooperationsplattform zur Unterst{\"u}tzung von Ingenieurplanungen. Methodische Grundlagen hierf{\"u}r stellen die Petri-Netze mit individuellen Marken in Verbindung mit einer semantischen Informationsbewertung dar. Der Beitrag zeigt an einem Beispiel die grundlegenden M{\"o}glichkeiten der Petri-Netze auf und stellt die Steuerung der Planungsprozesse aufgrund von Metainformationen dar. Dar{\"u}ber hinaus wird der Ansatz verfolgt, auf der Basis bauteilorientierter Prozessmuster f{\"u}r geotechnische Konstruktionselemente den ver{\"a}nderlichen Prozessablauf zu erfassen. Abschließend wird ein Weg zur Implementierung gezeigt.},
  subject      = {Geotechnik},
  language  = {de}
}
@inproceedings{RyanKrausshar,
  author    = {Ryan, John and Kraußhar, Rolf S{\"o}ren},
  title     = {ANALYSIS OF DIRAC OPERATORS ON SOME CONFORMALLY FLAT MANIFOLDS},
  editor    = {G{\"u}rlebeck, Klaus and K{\"o}nke, Carsten},
  organization    = {Bauhaus-Universit{\"a}t Weimar},
  doi       = {10.25643/bauhaus-universitaet.3008},
  url       = {http://nbn-resolving.de/urn:nbn:de:gbv:wim2-20170327-30081},
  pages     = {5},
  abstract  = {In this paper we shall review the role of Dirac operators arising in Clifford analysis over some examples of conformally flat manifolds.},
  subject      = {Architektur <Informatik>},
  language  = {en}
}
@inproceedings{Rohr,
  author    = {Rohr, Stefan},
  title     = {NEUE M{\"O}GLICHKEITEN IN DER ABLAUFPLANUNG DURCH DIE EREIGNISORIENTIERTE SIMULATION VON PRODUKTIONSPROZESSEN},
  editor    = {G{\"u}rlebeck, Klaus and K{\"o}nke, Carsten},
  organization    = {Bauhaus-Universit{\"a}t Weimar},
  doi       = {10.25643/bauhaus-universitaet.3006},
  url       = {http://nbn-resolving.de/urn:nbn:de:gbv:wim2-20170327-30060},
  pages     = {63},
  abstract  = {Durch die Betrachtung des Produktions-Prozesses als zentrales Transformationselement wird die Struktur der Bauproduktion realit{\"a}tsnah gefasst. Die Integration der prozessorientierten Kostendefinition setzt relevante Kostenparameter und Produktionsfaktoren so in Beziehung, dass sie im Einklang mit der realen Kostenstruktur und Kostendynamik einer Baustelle stehen. Die Beziehung zwischen Bauzeit und Kosten wird direkt erfasst und ausgewertet. Der hohen Dynamik der Bauproduktion zwischen kapazit{\"a}tsbeschr{\"a}nkten Einsatzmitteln und Produktionsprozessen wurde durch das Poolmodell und der Simulation als Berechnungsmethode Rechnung getragen. Eine einfache Modellierung von sich zyklusartig wiederholenden Arbeitsvorg{\"a}ngen (Taktplanung) ist m{\"o}glich. Die Taktbildung vollzieht sich bei der Simulation durch Kapazit{\"a}tsbeschr{\"a}nkungen ohne Zutun des Benutzers. Durch eine Optimierungsmethode kann automatisiert nach der kosteng{\"u}nstigsten oder zeitlich schnellsten Produktionsvariante gesucht werden},
  subject      = {Architektur <Informatik>},
  language  = {de}
}
@inproceedings{RogożaStachonUbysz,
  author    = {Rogoża, Agnieszka and Stachon, T. and Ubysz, Andrzej},
  title     = {MODELLING THE PLASTIC HINGE IN THE STATICALLY INDETERMINABLE REINFORCED CONCRETE BAR ELEMENTS},
  editor    = {G{\"u}rlebeck, Klaus and K{\"o}nke, Carsten},
  organization    = {Bauhaus-Universit{\"a}t Weimar},
  doi       = {10.25643/bauhaus-universitaet.3005},
  url       = {http://nbn-resolving.de/urn:nbn:de:gbv:wim2-20170327-30050},
  pages     = {6},
  abstract  = {The paper presents the example numerical model to calculate the reinforced concrete bar structures. Usually applied methods of structure dimensioning do not include the case of plastic hinges occurrence under the limit load of construction. The model represented by A. Borcz is based on the differential equation of deflection line of the beam and it includes the effects of rearrangement of the internal forces and reological effects. The experimental parameters obtained in earlier investigations describe effects resulting from the rise of plastic hinges in the proposed equation.},
  subject      = {Architektur <Informatik>},
  language  = {en}
}
@inproceedings{RichterDonath,
  author    = {Richter, Katharina and Donath, Dirk},
  title     = {AUGMENTING DESIGNERS MEMORY - REVISAL OF THE CASE-BASED REASONING PARADIGM IN ARCHITECTURAL EDUCATION AND DESIGN},
  editor    = {G{\"u}rlebeck, Klaus and K{\"o}nke, Carsten},
  organization    = {Bauhaus-Universit{\"a}t Weimar},
  doi       = {10.25643/bauhaus-universitaet.3004},
  url       = {http://nbn-resolving.de/urn:nbn:de:gbv:wim2-20170327-30047},
  pages     = {5},
  abstract  = {This research focuses on the Case-based Reasoning paradigm in architectural design (CBD) and education. Initial point for further exploring this only seemingly comprehensive investigated field of research constitutes the finding that promising looking concepts exist but that they do not play a role in daily routine of designing architects or in university education. In search of reasons for this limited success a critical review of the CBR approach to architectural education and design was performed. The aim was to identify gaps in the CBD research and to discover potential fields of research within CBR research in architectural education and design to improve acceptance and practical suitability. Two major shortcomings could be identified. In the first place the way retrieval mechanisms of systems under investigation relate to the needs of architectural designers and students. At second: Successful CBD systems rely on the work of third-parties in sharing their experiences with others and filling the databases with relevant cases. Therefore two questions remain unanswered: The question of which projects become part of the database and how get existing projects not only described but evaluated. This is an essential task and prerequisite to meet the requirements of the underlying theory of CBR.},
  subject      = {Architektur <Informatik>},
  language  = {en}
}
@inproceedings{RaueTimmler,
  author    = {Raue, Erich and Timmler, Hans-Georg},
  title     = {NUMERISCHE ANALYSE VON VERBUNDQUERSCHNITTEN MIT NICHTLINEAREM MATERIALVERHALTEN UNTER BER{\"u}CKSICHTIGUNG VON VORVERFORMUNGEN},
  editor    = {G{\"u}rlebeck, Klaus and K{\"o}nke, Carsten},
  organization    = {Bauhaus-Universit{\"a}t Weimar},
  doi       = {10.25643/bauhaus-universitaet.3003},
  url       = {http://nbn-resolving.de/urn:nbn:de:gbv:wim2-20170327-30039},
  pages     = {9},
  abstract  = {The presented method for an physically non-linear analysis of stresses and deformations of composite cross-sections and members based on energy principles and their transformation to non-linear optimisation problems. From the LAGRANGE principle of minimum of total potential energy a kinematic formulation of the mechanical problem can be developed, which has the general advantage that pre-deformations excited by shrinkage, temperature, residual deformations after unloading et al., can be considered directly. Thus the non-linear analysis of composite cross-sections with layers of different mechanical properties and different preloading becomes possible and cracks in concrete, stiffness degradation and other specifics of the material behaviour can be taken into account without cardinal modification of the mathematical model. The impact of local defects on the bearing capacity of an entire element can also be analysed in this principle way. Standard computational systems for mathematical optimisation or general programs for spreadsheet analysis enable an uncomplicated implementation of the developed models and an effective non-linear analysis for composite cross-sections and elements.},
  subject      = {Architektur <Informatik>},
  language  = {en}
}
@inproceedings{Raue,
  author    = {Raue, Erich},
  title     = {NICHTLINEARE ANALYSE VON VERBUNDQUERSCHNITTEN - EIN NEUER ALTERNATIVER WEG},
  editor    = {G{\"u}rlebeck, Klaus and K{\"o}nke, Carsten},
  organization    = {Bauhaus-Universit{\"a}t Weimar},
  doi       = {10.25643/bauhaus-universitaet.3002},
  url       = {http://nbn-resolving.de/urn:nbn:de:gbv:wim2-20170327-30027},
  pages     = {13},
  abstract  = {A new approach to the non-linear analysis of cross-sections loaded by normal forces and bending moments is presented in the paper. The mechanical model is based on the LAGRANGE principle of minimum of total potential energy. Deformations, stresses and limit load parameters are obtained by solving a non-linear optimisation problem. The mathematical model is independent of the specifics of material. In addition to the stress strain relation and the specific strain energy W(ε) two further functions F(ε) and Φ(ε) are introduced to describe the material behaviour. Thus cracks in concrete, non-linearity of material etc. can be taken into account without basic modification of the numerical algorithm. For polygonal cross-sections the GAUSS' integral theorem is used. Numerical solutions of the non-linear optimisation problems can be found by application of standard software. Thus the analysis of reinforced concrete cross-sections or more general composite cross-sections with non-linear behaviour of material is as simple as in the case of linear elasticity. The application of the method is demonstrated for polygonal cross-sections. Pre-stresses or pre-strains can easily be included in the mathematical model.},
  subject      = {Architektur <Informatik>},
  language  = {en}
}
@article{Picon2003,
  author    = {Picon, Antoine},
  title     = {Architecture and the virtual : towards a new materiality?},
  doi       = {10.25643/bauhaus-universitaet.1236},
  url       = {http://nbn-resolving.de/urn:nbn:de:gbv:wim2-20080227-13031},
  year      = {2003},
  abstract  = {Wissenschaftliches Kolloquium vom 24. bis 27. April 2003 in Weimar an der Bauhaus-Universit{\"a}t zum Thema: ‚MediumArchitektur - Zur Krise der Vermittlung'},
  subject      = {Architektur},
  language  = {en}
}
@inproceedings{Pham,
  author    = {Pham, Hoang Anh},
  title     = {ADAPTIVE EXCITATION FOR SELECTIVE SENSITIVITY-BASED STRUCTURAL IDENTIFICATION},
  editor    = {G{\"u}rlebeck, Klaus and K{\"o}nke, Carsten},
  organization    = {Bauhaus-Universit{\"a}t Weimar},
  doi       = {10.25643/bauhaus-universitaet.3001},
  url       = {http://nbn-resolving.de/urn:nbn:de:gbv:wim2-20170327-30015},
  pages     = {9},
  abstract  = {Major problems of applying selective sensitivity to system identification are requirement of precise knowledge about the system parameters and realization of the required system of forces. This work presents a procedure which is able to deriving selectively sensitive excitation by iterative experiments. The first step is to determine the selectively sensitive displacement and selectively sensitive force patterns. These values are obtained by introducing the prior information of system parameters into an optimization which minimizes the sensitivities of the structure response with respect to the unselected parameters while keeping the sensitivities with respect to the selected parameters as a constant. In a second step the force pattern is used to derive dynamic loads on the tested structure and measurements are carried out. An automatic control ensures the required excitation forces. In a third step, measured outputs are employed to update the prior information. The strategy is to minimize the difference between a predicted displacement response, formulated as function of the unknown parameters and the measured displacements, and the selectively sensitive displacement calculated in the first step. With the updated values of the parameters a re-analysis of selective sensitivity is performed and the experiment is repeated until the displacement response of the model and the actual structure are conformed. As an illustration a simply supported beam made of steel, vibrated by harmonic excitation is investigated, thereby demonstrating that the adaptive excitation can be obtained efficiently.},
  subject      = {Architektur <Informatik>},
  language  = {en}
}
@phdthesis{Petzold2001,
  author    = {Petzold, Frank},
  title     = {Computergest{\"u}tzte Bauaufnahme als Grundlage f{\"u}r die Planung im Bestand - Untersuchungen zur digitalen Erfassung und Modellbildung},
  doi       = {10.25643/bauhaus-universitaet.52},
  url       = {http://nbn-resolving.de/urn:nbn:de:gbv:wim2-20040305-543},
  school      = {Bauhaus-Universit{\"a}t Weimar},
  year      = {2001},
  abstract  = {Die Dissertation setzt sich mit der Aufarbeitung der Aufnahme vorhandener Bauwerke hinsichtlich der IT-Unterst{\"u}tzung des Aufnahmeprozesses, auswertbarer Geb{\"a}udemodelle und der Bereitstellung von Informationen f{\"u}r die Planung auseinander. In der Arbeit ist der Bauaufnahmeprozeß gegliedert worden sowie die entstehenden Informationsmengen analysiert. Untersuchungen des aufzunehmenden Gegenstandes, der Strukturierung, der Aufnahme - hinsichtlich der Aufnahmeger{\"a}te und -methoden- und der Pr{\"a}sentation dienten als Grundlage f{\"u}r eine IT-Unterst{\"u}tzung. Die Aufnahme erfolgt immer als ein Prozeß der Modellbildung. Als IT-Paradigma bietet sich die „Objektorientierte Modellierungstechnologie" an. Diese wurde einer Bewertung unterzogen. Mit Hinblick auf den konkreten Sachverhalt der Bauaufnahme, wie imperfekte und schwer formalisierbare Informationen, sind Erweiterungen ber{\"u}cksichtigt worden. Aus den diskutierten Ans{\"a}tzen wurde ein Systemkonzept abgeleitet und Teilaspekte exemplarisch realisiert.},
  subject      = {Geb{\"a}udeplanung},
  language  = {de}
}
@inproceedings{Petrova,
  author    = {Petrova, Lyllia B.},
  title     = {STATIC ANALYSIS ON MODELS OF CONTINUOUS ORTHOTROPIC THIN-WALLED PRISMATIC SHELL STRUCTURES},
  editor    = {G{\"u}rlebeck, Klaus and K{\"o}nke, Carsten},
  organization    = {Bauhaus-Universit{\"a}t Weimar},
  doi       = {10.25643/bauhaus-universitaet.3000},
  url       = {http://nbn-resolving.de/urn:nbn:de:gbv:wim2-20170327-30007},
  pages     = {8},
  abstract  = {The paper presents a linear static analysis on continuous orthotropic thin-walled shell structures simply supported at the transverse ends with a random deformable contour of the cross section. The external loads can be random as well. The class of this structures involves most of the bridges, scaffold bridges, some roof structures etc. A numerical example of steel continuous structures on five spans with an open contour of the cross-section has been solved. The examination of the structure has used the following two computation models: a prismatic structure consisting of isotropic strips, a plates and ribs, with considering their real interaction, and a smooth orthotropic plate equivalent to the structure in the first model. The displacements and forces of the structure characterizing its stressed and deformed condition have been determined. The results obtained from the two solutions have been analyzed. The study on the structure is made with the force method in combination with the analytical finite strip method (AFSM) in displacements. The basic system is obtained by separating the superstructure from the understructure at the places of intermediate supports and consists of two parts. The first part is a single span thin-walled prismatic shell structure; the second part presents supports (columns, space frames etc.). The connection between the superstructure and intermediate supports is made under random supporting conditions. The forces at the supporting points in the direction of the connections removed are assumed to be the basic unknowns of the force method. The solution of the superstructure has been accomplished by the AFSM in displacements. The structure is divided in only one (transverse) direction into a finite number of plain strips connected to each other in longitudinal linear nodes. The three displacements of the points on the node lines and the rotation around those lines have been assumed to be the basic unknown in each node. The boundary conditions of each strip of the basic system correspond to the simply support along the transverse ends and the restraint along the longitudinal ones. The particular strip of the basic system has been solved by the method of the single trigonometric series. The method is reduced to solving a discrete structure in displacements and restoring its continuity at the places of the sections made in respect to both the displacements and forces. The two parts of the basic system have been solved in sequence under the action of single values of each of the basic unknowns and with the external load. The solution of the support part is accomplished using software for analyzing structures by the FEM. The basic unknown forces have been determined from system of canonic equations, the conditions of the deformations continuity on the places of the removed connections under superstructure and intermediate supports. The final displacements and forces at a random point of a continuous superstructure have been determined using the principle of superposition. The computations have been carried by software developed with Visual Fortran version 5.0 for PC.},
  subject      = {Architektur <Informatik>},
  language  = {en}
}
@inproceedings{PetersenMeissner2000,
  author    = {Petersen, Michael and Meißner, Udo F.},
  title     = {Energieoptimierte Geb{\"a}udeplanung mit verteilter Informationsmodellierung},
  doi       = {10.25643/bauhaus-universitaet.606},
  url       = {http://nbn-resolving.de/urn:nbn:de:gbv:wim2-20111215-6066},
  year      = {2000},
  abstract  = {n allen Stadien des Planungsprozesses von Geb{\"a}uden nehmen Entwurfsentscheidungen starken Einfluß auf die bauphysikalische Qualit{\"a}t eines Geb{\"a}udes. Im Rahmen dieses Beitrags wird deshalb die Integration bauphysikalischer Gesichtspunkte in den Planungsprozeß vorgestellt, bei welcher dem Fachingenieur geeignete Werkzeuge zur Verf{\"u}gung gestellt werden, die es erlauben, das zu planende Geb{\"a}ude als Einheit von baulicher H{\"u}lle, Anlagentechnik und Nutzung zu betrachten. Darauf aufbauend wird eine gezielte {\"U}berpr{\"u}fung des Geb{\"a}udemodells mit Hilfe von bauphysikalischen Nachweisen und Simulationen durchgef{\"u}hrt, um eine bauphysikalische Entscheidungsunterst{\"u}tzung im Entwurfsprozeß vornehmen zu k{\"o}nnen. Das erarbeitete Programmsystem VAMOS (Verteilte Applikation zur Modellierung und Optimierung bauphysikalischer Systeme) nutzt die Middleware-Technologie CORBA konsequent f{\"u}r die dynamische, netzwerkweite Integration f{\"u}nf verschiedener aufgabenspezifischer Komponenten: Die erste Komponente zur Modellerzeugung und -manipulation wurde auf Basis des CAD-Systems AutoCAD als ARX-Laufzeitmodul erstellt. Dadurch ist es einerseits m{\"o}glich, bestehende Planungsabl{\"a}ufe unter Verwendung von Standardwerkzeugen des entwerfenden Ingenieurs zu erhalten, andererseits k{\"o}nnen die umfangreichen F{\"a}higkeiten des AutoCAD-Geometriekerns f{\"u}r die Erstellung komplexer dreidimensionaler Bauteilgeometrien genutzt werden. In der zweiten Komponenten wurde eine objektorientiertes Datenbanksystem in das Gesamtsystem integriert, das auch f{\"u}r die Verwaltung verschiedener Versionen von Geb{\"a}udeentw{\"u}rfen verwendet wird. Die bauphysikalischen Nachweise, die auf Basis der zentral im Netzwerk bereitgestellten Modelle automatisiert durchgef{\"u}hrt werden k{\"o}nnen, wurden auf Basis der Java-Applet-Technologie abgebildet, um die zentrale Wartbarkeit und Anpassbarkeit an Ver{\"a}nderungen der Vorschriften und Gesetzesgrundlagen zu erm{\"o}glichen. Dabei wurden sowohl die aktuelle W{\"a}rmeschutzverordnung (WSVO) als auch die Energieeinsparverordnung (EnEV) ber{\"u}cksichtigt. F{\"u}r die ganzheitliche Erfassung des Geb{\"a}udeenergiehaushaltes wurde das Simulationsprogramm TRNSYS um ein Schnittstellenmodul unter Verwendung von IDL-Interfaces erweitert, so daß die direkte Integration der umfangreichen Funktionalit{\"a}ten in das Gesamtsystem m{\"o}glich wird. Um die Modellierung auf der Basis von realistischen Parametern durchf{\"u}hren zu k{\"o}nnen, wurde eine Komponente entwickelt, die unter Verwendung der Technologie mobiler Internet-Agenten die dynamische Recherche von herstellerspezifischen Parametern im Internet erm{\"o}glicht.},
  subject      = {Bauphysik},
  language  = {de}
}
@inproceedings{PetersenDiaz2003,
  author    = {Petersen, Michael and Diaz, Joaquin},
  title     = {Fachgerechte Strukturierung von Planungsinformationen auf der Basis von Geb{\"a}udemodellen in Projektkommunikationsystemen},
  doi       = {10.25643/bauhaus-universitaet.345},
  url       = {http://nbn-resolving.de/urn:nbn:de:gbv:wim2-20111215-3458},
  year      = {2003},
  abstract  = {Im Hinblick auf einen effizienten Austausch von Planungsinformationen bei mittleren und gr{\"o}ßeren Bauprojekten werden in den letzten Jahren vermehrt internetbasierte Projektkommunikationssysteme (PKS) eingesetzt, welche neben einer netzwerkweiten Bereitstellung von Dateien auch klassische Aufgaben des Planmanagements hinsichtlich der Bereitstellung von Dokumenten-Verteiler und der Abbildung der Planungshistorie {\"u}bernehmen. Aufgrund von leicht zu nutzenden Mechanismen zur Bereitstellung von Planungsinformationen durch die Fachplaner und die zentrale Speicherung aller anfallenden Dokumente entstehen dabei leicht erhebliche Datenmengen, bei denen effiziente Verwaltungsmechanismen unabdingbar sind. Die lediglich auf Baumstrukturen basierenden Organisationsstrukturen, welche vor allem eine chronologische Sortierung erlauben, reichen deshalb bei weitem nicht aus. Weiterhin ist eine effiziente Gestaltung der Projektdurchf{\"u}hrung mit diesem rein dokumentenbasierten Ans{\"a}tzen allein nicht m{\"o}glich, da zwischen den bereitgestellten Informationen nur unzureichend Verkn{\"u}pfungen erstellt werden k{\"o}nnen. Fachliche Beziehungen somit nicht abgebildet werden k{\"o}nnen, so dass insbesondere bei durchgef{\"u}hrten {\"A}nderungen die zugrunde liegenden Planungsinformationen nicht konsistent gehalten und Auswirkungen von Planungs{\"a}nderungen auf andere Gewerke nur schwer ermittelt werden k{\"o}nnen....},
  subject      = {Bauplanung},
  language  = {de}
}
@inproceedings{PerepelitsaTebuevaShenkao,
  author    = {Perepelitsa, V. A. and Tebueva, F.B. and Shenkao, Timour},
  title     = {SOLVABILITY EXPLORATION OF SEGMENTATION PROBLEM WITH LINEAR CONVOLUTION ALGORITHMS},
  editor    = {G{\"u}rlebeck, Klaus and K{\"o}nke, Carsten},
  organization    = {Bauhaus-Universit{\"a}t Weimar},
  doi       = {10.25643/bauhaus-universitaet.2999},
  url       = {http://nbn-resolving.de/urn:nbn:de:gbv:wim2-20170327-29999},
  pages     = {13},
  abstract  = {The paper is dedicated to decidability exploration of market segmentation problem with the help of linear convolution algorithms. Mathematical formulation of this problem represents interval task of bipartite graph cover by stars. Vertices of the first partition correspond to types of commodities, vertices of the second - to customers groups. Appropriate method is offered for interval problem reduction to two-criterion task that has one implemented linear convolution algorithm. Unsolvability with the help of linear convolution algorithm of multicriterion, and consequently interval, market segmentation problem is proved.},
  subject      = {Architektur <Informatik>},
  language  = {en}
}
@inproceedings{Pavlov2003,
  author    = {Pavlov, Alexander},
  title     = {Die Modellierung des Bauwesens f{\"u}r den Datenaustausch},
  doi       = {10.25643/bauhaus-universitaet.344},
  url       = {http://nbn-resolving.de/urn:nbn:de:gbv:wim2-20111215-3447},
  year      = {2003},
  abstract  = {Der Versuch, alle vorhandenen Arten von Bauobjekten in einem Schema zu beschreiben, wird zu einem {\"u}berm{\"a}ßig großen Schema f{\"u}hren. Im internationalen Zentrum f{\"u}r Bauinformatik hat der Autor die Besonderheiten des Bauwesens formuliert und gefolgert, dass es gen{\"u}gt, in den Klassen topologische, geometrische und graphische Aspekte der Bauobjekte, sowie einige Hilfsbegriffe zu beschreiben. Ein Hauptziel bei der Entwicklung einer Sprache ist die Einfachheit des Schemas. Insgesamt werden etwa nur 50 Klassen f{\"u}r CAD-Systeme vorgeschlagen. In Modellen von Bauobjekten, die von CAD-Systemen erzeugt werden, betrifft der gr{\"o}ßte Anteil der Daten die geometrische Form der Elemente und ihre Raumlage. Zur Beschreibung der Bauobjekte werden nur 7 Hauptklassen verwendet: Entity, System, Clone, Context, Annotation, Figure und Process. Von besonderer Bedeutung ist die Klasse >Clone<. Sie erlaubt in kompakter Form die Beschreibung einer Menge {\"a}hnlicher Objekte, die sich in wenigen Parametern (zum Beispiel, der Lage im Raum) unterscheiden. Das vorgestellte Konzept f{\"u}hrt zu einer starken Verringerung der Dateigr{\"o}ße und erleichtert das Erkennen der Objekte bei der {\"U}bergabe der Daten. Die Strukturdiagramme der Klassen wurden mit Hilfe der UML-Sprache erzeugt. Die Klassen sind auch im XML-Format beschreiben und k{\"o}nnen auf Homepage >http://www.mtu-net.ru/pavlov/bodXML< gelesen werden. Zur Pr{\"u}fung der Anwendbarkeit des Schemas wurden Beispiele der Beschreibung verschiedener Bauobjekte entwickelt. Diese Beispiele sind auf o.g. Homepage angegeben},
  subject      = {Bauplanung},
  language  = {de}
}
@inproceedings{PaulPfeifferMuelle2003,
  author    = {Paul, Norbert and Pfeiffer, Daniel and M{\"u}lle, Jutta},
  title     = {Unterst{\"u}tzung der integrierten Geb{\"a}udeplanung und -verwaltung mit einem topologischen Kerndatenmodell},
  doi       = {10.25643/bauhaus-universitaet.342},
  url       = {http://nbn-resolving.de/urn:nbn:de:gbv:wim2-20111215-3424},
  year      = {2003},
  abstract  = {An einem Teil der Topologie architektonischer R{\"a}ume, dem Volumenadjazenzgraphen (VAG), wird gezeigt wie topologisches Modellieren Anwendungen der Bauplanung integrieren kann. Dazu wird ein Prototyp vorgestellt, der im wesentlichen aus drei Komponenten besteht: Mit dem Anforderungsmanager werden Anforderungen eigegeben, die formal gut handhabbar sind. Mit dem Topologiemanager werden diese Anforderungen mit gezeichneten R{\"a}umen kombiniert. Die topologischen Relationen in den Zeichnungen werden mit den entsprechenden Mitteln des GIS berechnet und in eine Datenbank exportiert. Der Anforderungspr{\"u}fer vergleicht dann die Anforderungsdaten, die mit Hilfe des Anforderungsmanagers erzeugt wurden, mit den Topologiedaten. Dieser Ansatz soll zeigen, wie topologische Modelle eine Formalisierung semantisch hochstehender Informationen erm{\"o}glichen, indem sie als Eigenschaften von Graphen dargestellt werden},
  subject      = {Bauplanung},
  language  = {de}
}
@inproceedings{PaolucciVenturino,
  author    = {Paolucci, Anna Maria and Venturino, Ezio},
  title     = {NONLINEAR DYNAMICS AND WAVELETS IN DISCRETE BIOMATHEMATICAL MODELS},
  editor    = {G{\"u}rlebeck, Klaus and K{\"o}nke, Carsten},
  organization    = {Bauhaus-Universit{\"a}t Weimar},
  doi       = {10.25643/bauhaus-universitaet.2998},
  url       = {http://nbn-resolving.de/urn:nbn:de:gbv:wim2-20170327-29984},
  pages     = {25},
  abstract  = {A discrete ecoepidemiological model is considered. Its dynamics is studied by using wavelet decomposition.},
  subject      = {Architektur <Informatik>},
  language  = {en}
}
@inproceedings{PahlBeucke2000,
  author    = {Pahl, Peter Jan and Beucke, Karl},
  title     = {Neuere Konzepte des CAD im Bauwesen: Stand und Entwicklungen},
  doi       = {10.25643/bauhaus-universitaet.566},
  url       = {http://nbn-resolving.de/urn:nbn:de:gbv:wim2-20111215-5663},
  year      = {2000},
  abstract  = {Die Modelle fr{\"u}her CAD-Zeichnungen sind unstrukturierte Mengen graphischer Elemente. Heute werden CAD-Zeichnungen aus semantischen Objektmodellen von Bauwerken abgeleitet, deren Informationsbasis systematisch geordnet und deren Nutzung zweckm{\"a}ßig geregelt ist. Softwaremodule werden getrennt entwickelt und unter aktiver Mitwirkung der Anwender vereint eingesetzt.Ein zentrales Problem der aktuellen Forschung und Entwicklung im CAD ist die Handhabung der Beziehungen zwischen Objekten und ihrer {\"A}nderungen in verteilten Arbeitsumgebungen. Hierf{\"u}r wird ein Konzept mit der Relationenalgebra als theoretische Grundlage vorgestellt.},
  subject      = {Bauwesen},
  language  = {de}
}
@inproceedings{Ostrowski,
  author    = {Ostrowski, M.},
  title     = {INTEGRATED MATHEMATICAL MODELLING AS A BASIS FOR DECISION MAKING IN WATER MANAGEMENT},
  editor    = {G{\"u}rlebeck, Klaus and K{\"o}nke, Carsten},
  organization    = {Bauhaus-Universit{\"a}t Weimar},
  doi       = {10.25643/bauhaus-universitaet.2997},
  url       = {http://nbn-resolving.de/urn:nbn:de:gbv:wim2-20170327-29979},
  pages     = {9},
  abstract  = {Water resources development and management is a complex problem. It includes the design and operation of single system components, often as part of larger interrelated systems and usually on the basis of river basins. While several decades ago the dominant objective was the maximization of economic benefit, other objectives have evolved as part of the sustainable development envisaged. Today, planning and operation of larger water resources systems is practically impossible without adequate computer tools, normally being one or several models, increasingly combined with data bank management systems and multi criteria assessment procedures in decision support systems. The use of models in civil engineering already has a long history when structural engineering is considered. These design support models, however, must rather be seen as expert systems made to support the engineer with his daily work. They often have no direct link to stakeholders and the decision makers community. The scale of investigation is often much larger in water resources engineering than in structural engineering which is related to different stakeholders and decision making procedures. Still, several similarities are obvious which can be summarized as the search for a compromise solution on a complex, i.e. multiobjective and interdisciplinary decision problem. While in structural engineering e.g. aestetics, stability and energy consumption might be important evaluation criteria in addition to construction and maintenance cost other or additional criteria have to be considered in water resources planning such as political, environmental and social criteria. In this respect civil engineers tend to overemphasize technical criteria. For the future the existing expert systems should be embedded into an improved decision support shell, keeping in mind that decision makers are hardly interested in numerical modelling results. The paper will introduce into the problem and demonstrate the state of the art by means of an example.},
  subject      = {Architektur <Informatik>},
  language  = {en}
}
@article{Naginskaja1987,
  author    = {Naginskaja, Valentina},
  title     = {Probleme der Nutzung der Rechentechnik in der Projektierung},
  doi       = {10.25643/bauhaus-universitaet.1045},
  url       = {http://nbn-resolving.de/urn:nbn:de:gbv:wim2-20111215-10451},
  year      = {1987},
  abstract  = {Wissenschaftliches Kolloquium vom 24. bis 26. Juni 1986 in Weimar an der Hochschule f{\"u}r Architektur und Bauwesen zum Thema: 'Der wissenschaftlich-technische Fortschritt und die sozial-kulturellen Funktionen von Architektur und industrieller Formgestaltung in unserer Epoche'},
  subject      = {CAD},
  language  = {de}
}
@inproceedings{MusialUbyszUlatowski,
  author    = {Musial, Michal and Ubysz, Andrzej and Ulatowski, Piotr},
  title     = {METHOD OF CALCULATION OF INTERNAL FORCES REDISTRIBUTION AND DISLOCATIONS IN REINFORCED CONCRETE BEAMS},
  editor    = {G{\"u}rlebeck, Klaus and K{\"o}nke, Carsten},
  organization    = {Bauhaus-Universit{\"a}t Weimar},
  doi       = {10.25643/bauhaus-universitaet.2996},
  url       = {http://nbn-resolving.de/urn:nbn:de:gbv:wim2-20170327-29965},
  pages     = {8},
  abstract  = {The paper is a proposal of calculation of internal forces and dislocations in the reinforced concrete beams before and after cracking. For the ideally elastic bars transfer matrix proposed by Rakowski was applied. The effects associated with cracking were introduced by means of the Borcz's theory in the spectrally way. Numerical example was shown. The presented attitude also enables to calculate dynamic problems and those connected with the stability of the compressed and bending cracked beams and columns.},
  subject      = {Architektur <Informatik>},
  language  = {en}
}
@inproceedings{Muschalla,
  author    = {Muschalla, Dirk},
  title     = {OPTIMIZATION OF WATER RESOURCES SYSTEMS USING MULTI-OBJECTIVE EVOLUTION STRATEGIES},
  editor    = {G{\"u}rlebeck, Klaus and K{\"o}nke, Carsten},
  organization    = {Bauhaus-Universit{\"a}t Weimar},
  doi       = {10.25643/bauhaus-universitaet.2995},
  url       = {http://nbn-resolving.de/urn:nbn:de:gbv:wim2-20170327-29953},
  pages     = {10},
  abstract  = {This paper deals with the development of a new multi-objective evolution strategy in combination with an integrated pollution-load and water-quality model. The optimization algorithm combines the advantages of the Non-Dominated Sorting Genetic Algorithm and Self-Adaptive Evolution Strategies. The identification of a good spread of solutions on the pareto-optimum front and the optimization of a large number of decision variables equally demands numerous simulation runs. In addition, statements with regard to the frequency of critical concentrations and peak discharges require continuous long-term simulations. Therefore, a fast operating integrated simulation model is needed providing the required precision of the results. For this purpose, a hydrological deterministic pollution-load model has been coupled with a river water-quality and a rainfall-runoff model. Wastewater treatment plants are simulated in a simplified way. The functionality of the optimization and simulation tool has been validated by analyzing a real catchment area including sewer system, WWTP, water body and natural river basin. For the optimization/rehabilitation of the urban drainage system, both innovative and approved measures have been examined and used as decision variables. As objective functions, investment costs and river water quality criteria have been used.},
  subject      = {Architektur <Informatik>},
  language  = {en}
}
@inproceedings{MostEckardtSchraderetal.,
  author    = {Most, Thomas and Eckardt, Stefan and Schrader, Kai and Deckner, T.},
  title     = {AN IMPROVED COHESIVE CRACK MODEL FOR COMBINED CRACK OPENING AND SLIDING UNDER CYCLIC LOADING},
  editor    = {G{\"u}rlebeck, Klaus and K{\"o}nke, Carsten},
  organization    = {Bauhaus-Universit{\"a}t Weimar},
  doi       = {10.25643/bauhaus-universitaet.2993},
  url       = {http://nbn-resolving.de/urn:nbn:de:gbv:wim2-20170327-29933},
  pages     = {20},
  abstract  = {The modeling of crack propagation in plain and reinforced concrete structures is still a field for many researchers. If a macroscopic description of the cohesive cracking process of concrete is applied, generally the Fictitious Crack Model is utilized, where a force transmission over micro cracks is assumed. In the most applications of this concept the cohesive model represents the relation between the normal crack opening and the normal stress, which is mostly defined as an exponential softening function, independently from the shear stresses in tangential direction. The cohesive forces are then calculated only from the normal stresses. By Carol et al. 1997 an improved model was developed using a coupled relation between the normal and shear damage based on an elasto-plastic constitutive formulation. This model is based on a hyperbolic yield surface depending on the normal and the shear stresses and on the tensile and shear strength. This model also represents the effect of shear traction induced crack opening. Due to the elasto-plastic formulation, where the inelastic crack opening is represented by plastic strains, this model is limited for applications with monotonic loading. In order to enable the application for cases with un- and reloading the existing model is extended in this study using a combined plastic-damage formulation, which enables the modeling of crack opening and crack closure. Furthermore the corresponding algorithmic implementation using a return mapping approach is presented and the model is verified by means of several numerical examples. Finally an investigation concerning the identification of the model parameters by means of neural networks is presented. In this analysis an inverse approximation of the model parameters is performed by using a given set of points of the load displacement curves as input values and the model parameters as output terms. It will be shown, that the elasto-plastic model parameters could be identified well with this approach, but require a huge number of simulations.},
  subject      = {Architektur <Informatik>},
  language  = {en}
}
@inproceedings{MostBucherMacke,
  author    = {Most, Thomas and Bucher, Christian and Macke, M.},
  title     = {A NATURAL NEIGHBOR BASED MOVING LEAST SQUARES APPROACH WITH INTERPOLATING WEIGHTING FUNCTION},
  editor    = {G{\"u}rlebeck, Klaus and K{\"o}nke, Carsten},
  organization    = {Bauhaus-Universit{\"a}t Weimar},
  doi       = {10.25643/bauhaus-universitaet.2994},
  url       = {http://nbn-resolving.de/urn:nbn:de:gbv:wim2-20170327-29943},
  pages     = {17},
  abstract  = {The Element-free Galerkin Method has become a very popular tool for the simulation of mechanical problems with moving boundaries. The internally applied Moving Least Squares approximation uses in general Gaussian or cubic weighting functions and has compact support. Due to the approximative character of this method the obtained shape functions do not fulfill the interpolation condition, which causes additional numerical effort for the imposition of the essential boundary conditions. The application of a singular weighting function, which leads to singular coefficient matrices at the nodes, can solve this problem, but requires a very careful placement of the integration points. Special procedures for the handling of such singular matrices were proposed in literature, which require additional numerical effort. In this paper a non-singular weighting function is presented, which leads to an exact fulfillment of the interpolation condition. This weighting function leads to regular values of the weights and the coefficient matrices in the whole interpolation domain even at the nodes. Furthermore this function gives much more stable results for varying size of the influence radius and for strongly distorted nodal arrangements than classical weighting function types. Nevertheless, for practical applications the results are similar as these obtained with the regularized weighting type presented by the authors in previous publications. Finally a new concept will be presented, which enables an efficient analysis of systems with strongly varying node density. In this concept the nodal influence domains are adapted depending on the nodal configuration by interpolating the influence radius for each direction from the distances to the natural neighbor nodes. This approach requires a Voronoi diagram of the domain, which is available in this study since Delaunay triangles are used as integration background cells. In the numerical examples it will be shown, that this method leads to a more uniform and reduced number of influencing nodes for systems with varying node density than the classical circular influence domains, which means that the small additional numerical effort for interpolating the influence radius leads to remarkable reduction of the total numerical cost in a linear analysis while obtaining similar results. For nonlinear calculations this advantage would be even more significant.},
  subject      = {Architektur <Informatik>},
  language  = {en}
}
@inproceedings{MostBucher,
  author    = {Most, Thomas and Bucher, Christian},
  title     = {ADAPTIVE RESPONSE SURFACE APPROACH USING ARTIFICIAL NEURAL NETWORKS AND MOVING LEAST SQUARES},
  editor    = {G{\"u}rlebeck, Klaus and K{\"o}nke, Carsten},
  organization    = {Bauhaus-Universit{\"a}t Weimar},
  doi       = {10.25643/bauhaus-universitaet.2992},
  url       = {http://nbn-resolving.de/urn:nbn:de:gbv:wim2-20170327-29922},
  pages     = {13},
  abstract  = {In engineering science the modeling and numerical analysis of complex systems and relations plays an important role. In order to realize such an investigation, for example a stochastic analysis, in a reasonable computational time, approximation procedure have been developed. A very famous approach is the response surface method, where the relation between input and output quantities is represented for example by global polynomials or local interpolation schemes as Moving Least Squares (MLS). In recent years artificial neural networks (ANN) have been applied as well for such purposes. Recently an adaptive response surface approach for reliability analyses was proposed, which is very efficient concerning the number of expensive limit state function evaluations. Due to the applied simplex interpolation the procedure is limited to small dimensions. In this paper this approach is extended for larger dimensions using combined ANN and MLS response surfaces for evaluating the adaptation criterion with only one set of joined limit state points. As adaptation criterion a combination by using the maximum difference in the conditional probabilities of failure and the maximum difference in the approximated radii is applied. Compared to response surfaces on directional samples or to plain directional sampling the failure probability can be estimated with a much smaller number of limit state points.},
  subject      = {Architektur <Informatik>},
  language  = {en}
}
@inproceedings{MisyuraVolkova,
  author    = {Misyura, E. and Volkova, Viktorija},
  title     = {APPLICATION OF THE MATHEMATICAL METHODS TO INVESTIGATION OF DYNAMICAL PROPERTIES OF A CABLE},
  editor    = {G{\"u}rlebeck, Klaus and K{\"o}nke, Carsten},
  organization    = {Bauhaus-Universit{\"a}t Weimar},
  doi       = {10.25643/bauhaus-universitaet.3031},
  url       = {http://nbn-resolving.de/urn:nbn:de:gbv:wim2-20170327-30313},
  pages     = {7},
  abstract  = {The paper is devoted to the investigation of dynamical behavior of a cable under influence of various types of excitations. Such element has a low rigidity and is sensitive to dynamic effect. The structural scheme is a cable which ends are located at different level. The analysis of dynamical behavior of the cable under effect of kinematical excitation which is represented by the oscillations of the upper part of tower is given. The scheme of cable is accepted such, that lower end of an inclined cable is motionless. The motion of the upper end is assumed only in horizontal direction. The fourth-order Runge-Kutta method was realized in software. The fast Fourier transform was used for spectral analysis. Standard graphical software was adopted for presenting results of investigations. The mathematical model of oscillations of a cable was developed by the account of the viscous damping. The analysis of dynamical characteristics of a cable for various parameters of damping and kinematical excitation was carried out. The time series, spectral characteristics and amplitude-frequencies characteristics was obtained. The resonance amplitude for different oscillating regimes was estimated. It is noted that increasing of the coefficient of the viscous damping and decreasing of the amplitude of tower's oscillations reduces the value of the critical frequency and the resonant amplitudes.},
  subject      = {Architektur <Informatik>},
  language  = {en}
}
@inproceedings{MenzelGarrettMahdavietal.1997,
  author    = {Menzel, Karsten and Garrett, James H. and Mahdavi, A. and Ries, R.},
  title     = {Processing "fuzzy" materials sets for environmental impact analysis of buildings},
  doi       = {10.25643/bauhaus-universitaet.450},
  url       = {http://nbn-resolving.de/urn:nbn:de:gbv:wim2-20111215-4500},
  year      = {1997},
  abstract  = {Processing technical and environmental data on building materials, components, and systems has become more important during the last few years. Increased sensitivity towards environmental and energy problems has lead to the demand for simulation and evaluation of the long term behavior of buildings. The results of such simulations are expected to enable architects and engineers to develop a broader, interdisciplinary understanding of the impact of their products (buildings) on the environment. However, conducting such evaluations is currently hampered by the lack of comprehensive, up-to-date, and ecologically relevant data on building materials, components, and systems. To address this problem, this paper proposes an approach to deal with the absent or uncertain attributes of building materials, components, and systems. In the past, various information systems have been developed to provide data on a limited set of building materials, including precise values pertaining to some of their characteristics, such as availability, manufacturers, costs, etc. These traditional information systems have difficulty in dealing with uncertain, incomplete and sparse data. However, uncertainty and incompleteness characterize the nature of most of the available and environmentally related characteristics of materials, components, and systems. In this paper, a fuzzy-logic-based augmentation of traditional information systems is proposed towards providing management, utilization and manipulation of incomplete and uncertain data.},
  subject      = {Bauwerk},
  language  = {en}
}
@inproceedings{MelnikovSemenov,
  author    = {Melnikov, B. E. and Semenov, Artem},
  title     = {MULTILEVEL COMPUTATION IN CIVIL ENGINEERING BASED ON MULTIMODEL ELASTO-PLASTIC ANALYSIS},
  editor    = {G{\"u}rlebeck, Klaus and K{\"o}nke, Carsten},
  organization    = {Bauhaus-Universit{\"a}t Weimar},
  doi       = {10.25643/bauhaus-universitaet.2991},
  url       = {http://nbn-resolving.de/urn:nbn:de:gbv:wim2-20170327-29911},
  pages     = {11},
  abstract  = {Requires for reliability and durability of structures and their elements with simultaneous material economy have stimulated improvement of constitutive equations for description of elasto-plastic deformation processes. This has led to the development of phenomenological modelling of complex phenomena of irreversible deformation including history-dependent and rate-dependent effects. During the last several decades many works have been devoted to the development of elasto-plastic models, in order to better predict the material behavior under combined variable thermo-mechanical loading. The increase of accuracy of stress analysis and safety factors for complex structures with the help of modern finite-element packages (ABAQUS, ANSYS, COSMOS, LS-DYNA, MSC.MARC, MSC.NASTRAN, PERMAS and other) can be provided only by use of complex and special variants of plasticity theories, which are adequate for the considered loading conditions and based on authentic information about properties of materials. The areas of application of the various theories (models) are as a rule unknown to the users of finite-element packages at the existing variety loading condition sin machine-building designs. At the moment a universal theory of inelasticity is absent and even the most accomplished theories can not guarantee adequate description of deformation processes for arbitrary structure under wide range of loading programs. The classifier of materials, loading conditions, effects (phenomena) and list of basic experiments are developed by the authors. Use of these classifiers for an establishment of hierarchy of models is a first step for introduction of the multimodel analysis into computational practice. The set of the classic and modern inelasticity theories is considered, so that they are applicable for stress analysis of structures under complex loading programs. Among them there are plastic flow theories with linear and nonlinear isotropic and kinematic hardening, multisurface theories, endochronic theory, holonomic theory, rheologic models, theory of elasto-plastic processes, slip theory, physical theories (single crystal and polycrystalline models) and others. The classification of materials provides rearranging by a degree of homogeneous, chemical composition, level of strength and plasticity, behavior under cyclic loading, anisotropy of properties at initial condition, anisotropy of properties during deformation process, structural stability. The classification of loading conditions takes into consideration proportional and non-proportional loading, temperature range, combination of cyclic and monotonous loading, one-axial, two-axial and complex stress state, curvature of strain path, presence of stress concentrators and level of strain gradient. A unified general form of constitutive equations is presented for all used material models based upon the concept of internal state variables. The wide range of mentioned above inelastic material models has been implemented into finite element program PANTOCRATOR developed by authors (see for details www.pantocrator.narod.ru). Application possibility of different material models is considered both for material element and for complex structures subjected to complex non-proportional loading.},
  subject      = {Architektur <Informatik>},
  language  = {en}
}
@inproceedings{Meis,
  author    = {Meis, Jochen},
  title     = {SERVICE DESIGN AND SERVICE MANAGEMENT WITH THE SERVICE BLUEPRINTING METHODOLOGY},
  editor    = {G{\"u}rlebeck, Klaus and K{\"o}nke, Carsten},
  organization    = {Bauhaus-Universit{\"a}t Weimar},
  doi       = {10.25643/bauhaus-universitaet.2990},
  url       = {http://nbn-resolving.de/urn:nbn:de:gbv:wim2-20170327-29908},
  pages     = {11},
  abstract  = {A new application of software technology is the application area of smart living or sustainable living. Within this area application platforms are designed and realized with the goal to support value added services. In this context value added services integrates microelectronics, home automation and services to enhance the attractiveness of flats, homes and buildings. Especially real estate companies or service providers dealing with home services are interested in an effective design and management of their services. Service Engineering is the approved approach for designing customer oriented service processes. Service engineering consists of several phases; from situation analysis to service creation and service design to service management. This article will describe how the method service blueprint can be used to design service processes. Smart living includes all actions to enlarge a flat to a smart home for living. One special requirement of this application domain is the use of local components (actuators, sensors) within service processes. This article will show how this extended method supports service providers to improve the quality of customer oriented service processes and the derivation of needed interfaces of involved actors. For the civil engineering process it will be possible to derive needed information from a built in home automation system. The aim is to show, how to get needed smart local components to fullfill later offered it-supported value added services. Value added services focused on inhabitants are grouped to consulting and information, care and supervision, leisure time activities, repairs, mobility and delivery, safety and security, supply and disposal.},
  subject      = {Architektur <Informatik>},
  language  = {en}
}
@inproceedings{Markwardt,
  author    = {Markwardt, Klaus},
  title     = {WAVELET ANALYSIS AND FREQUENCY BAND DECOMPOSITIONS},
  editor    = {G{\"u}rlebeck, Klaus and K{\"o}nke, Carsten},
  organization    = {Bauhaus-Universit{\"a}t Weimar},
  doi       = {10.25643/bauhaus-universitaet.2989},
  url       = {http://nbn-resolving.de/urn:nbn:de:gbv:wim2-20170327-29895},
  pages     = {22},
  abstract  = {In many applications such as parameter identification of oscillating systems in civil enginee-ring, speech processing, image processing and others we are interested in the frequency con-tent of a signal locally in time. As a start wavelet analysis provides a time-scale decomposition of signals, but this wavelet transform can be connected with an appropriate time-frequency decomposition. For instance in Matlab are defined pseudo-frequencies of wavelet scales as frequency centers of the corresponding bands. This frequency bands overlap more or less which depends on the choice of the biorthogonal wavelet system. Such a definition of frequency center is possible and useful, because different frequencies predominate at different dyadic scales of a wavelet decomposition or rather at different nodes of a wavelet packet decomposition tree. The goal of this work is to offer better algorithms for characterising frequency band behaviour and for calculating frequency centers of orthogonal and biorthogonal wavelet systems. This will be done with some product formulas in frequency domain. Now the connecting procedu-res are more analytical based, better connected with wavelet theory and more assessable. This procedures doesn't need any time approximation of the wavelet and scaling functions. The method only works in the case of biorthogonal wavelet systems, where scaling functions and wavelets are defined over discrete filters. But this is the practically essential case, because it is connected with fast algorithms (FWT, Mallat Algorithm). At the end corresponding to the wavelet transform some closed formulas of pure oscillations are given. They can generally used to compare the application of different wavelets in the FWT regarding it's frequency behaviour.},
  subject      = {Architektur <Informatik>},
  language  = {en}
}
@inproceedings{MalonekFalcaoSilva,
  author    = {Malonek, Helmuth Robert and Falc{\~a}o, M. Irene and Silva, Ant{\´o}nio},
  title     = {MAPLE TOOLS FOR MODIFIED QUATERNIONIC ANALYSIS},
  editor    = {G{\"u}rlebeck, Klaus and K{\"o}nke, Carsten},
  organization    = {Bauhaus-Universit{\"a}t Weimar},
  doi       = {10.25643/bauhaus-universitaet.2953},
  url       = {http://nbn-resolving.de/urn:nbn:de:gbv:wim2-20170327-29535},
  pages     = {7},
  abstract  = {At the 16th IKM Bock, Falc{\~a}o and G{\"u}rlebeck presented examples of the application of some specially developed Maple-Software in hypercomplex analysis. Other papers of those authors continued this work and showed the efficiency of such tools for concrete numerical calculations as well as for numerical experiments, supporting the detection of new relationships and even theorems in a highly technical theoretical work. The mentioned software has been developed mainly for the use on mapping problems in the Euclidean spaces of dimension 3 and 4 by means of Bergman kernel methods (BKM), which are related to monogenic functions as solutions of generalized Cauchy-Riemann equations with respect to the Euclidean metric (Riesz system). The developed procedures concerning generalized powers of totally regular variables and the corresponding homogeneous polynomials basically rely on results and conventions introduced in the paper "Power series representation for monogenic functions in Rm+1 based on a permutational product", Complex Variables, 15, No.3, 181-191 (1990) by H. Malonek. Since 1992 H. Leutwiler, S. L. Eriksson and others developed in a number of papers a modified Clifford analysis and, particularly, a modified quaternionic analysis. The modification mainly consists in considering generalized Cauchy-Riemann equations with respect to a hyperbolic metric in a half space. The aim of this contribution is to show how through a change of the basic combinatorial relations used in the modified quaternionic analysis the aforementioned Maple-software (that has been recently published on CD-Rom as integrated part of the text book "Funktionentheorie in der Ebene und im Raum" by K. G{\"u}rlebeck, K. Habetha, and W. Spr{\"o}ssig, in the series "Grundstudium Mathematik" of Birkh{\"a}user Verlag, 2006) can directly be used for numerical calculations in the modified theory.},
  subject      = {Architektur <Informatik>},
  language  = {en}
}
@inproceedings{MahdaviMathewHartkopf1997,
  author    = {Mahdavi, A. and Mathew, P. and Hartkopf, V.},
  title     = {Real-time Coupling of Multi-Domain Representational and Analytical Building Object Models via Homology-based Mapping},
  doi       = {10.25643/bauhaus-universitaet.446},
  url       = {http://nbn-resolving.de/urn:nbn:de:gbv:wim2-20111215-4461},
  year      = {1997},
  abstract  = {Ideally, multiple computational building evaluation routines (particularly simulation tools) should be coupled in real-time to the representational design model to provide timely performance feed-back to the system user. In this paper we demonstrate how this can be achieved effectively and conveniently via homology-based mapping. We consider two models as homologous if they entail isomorphic topological information. If the general design representation (i.e., a shared object model) is generated in a manner so as to include both the topological building information and pointers to the semantic information base, it can be used to directly derive the domain representations (>enriched< object models with detailed configurational information and filtered semantic data) needed for evaluation purposes. As a proof of concept, we demonstrate a computational design environment that dynamically links an object-oriented space-based design model, with structurally homologous object models of various simulation routines.},
  subject      = {Geb{\"a}ude},
  language  = {en}
}
@inproceedings{Loemker,
  author    = {L{\"o}mker, Thorsten Michael},
  title     = {SOLVING REVITALIZATION-PROBLEMS BY THE USE OF A CONSTRAINT PROGRAMING LANGUAGE},
  editor    = {G{\"u}rlebeck, Klaus and K{\"o}nke, Carsten},
  organization    = {Bauhaus-Universit{\"a}t Weimar},
  doi       = {10.25643/bauhaus-universitaet.2987},
  url       = {http://nbn-resolving.de/urn:nbn:de:gbv:wim2-20170327-29874},
  pages     = {13},
  abstract  = {This research focuses on an approach to describe principles in architectural layout planning within the domain of revitalization. With the aid of mathematical rules, which are executed by a computer, solutions to design problems are generated. Provided that "design" is in principle a combinatorial problem, i.e. a constraint-based search for an overall optimal solution of a problem, an exemplary method will be described to solve such problems in architectural layout planning. To avoid conflicts relating to theoretical subtleness, a customary approach adopted from Operations Research has been chosen in this work. In this approach, design is a synonym for planning, which could be described as a systematic and methodical course of action for the analysis and solution of current or future problems. The planning task is defined as an analysis of a problem with the aim to prepare optimal decisions by the use of mathematical methods. The decision problem of a planning task is represented by an optimization model and the application of an efficient algorithm in order to aid finding one or more solutions to the problem. The basic principle underlying the approach presented herein is the understanding of design in terms of searching for solutions that fulfill specific criteria. This search is executed by the use of a constraint programming language.},
  subject      = {Architektur <Informatik>},
  language  = {en}
}
@inproceedings{Loemker2003,
  author    = {L{\"o}mker, Thorsten Michael},
  title     = {Plausibilit{\"a}t im Planungsprozess - Digitale Planungshilfen f{\"u}r die Bebaubarkeit von Grundst{\"u}cken},
  doi       = {10.25643/bauhaus-universitaet.329},
  url       = {http://nbn-resolving.de/urn:nbn:de:gbv:wim2-20111215-3296},
  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< werden Konzepte und Prototypen f{\"u}r eine fachlich orientierte Planungsunterst{\"u}tzung entwickelt. Die Vielfalt der unterschiedlichen Faktoren, die Einfluss auf den Planungsprozess nehmen k{\"o}nnen, sowie deren Abh{\"a}ngigkeiten voneinander werden von heutigen Planungssystemen in nur unzureichender Weise aufbereitet und verwaltet. Diese Faktoren bedingen Planungstools, deren Aufgabe die Beschaffung, Verarbeitung, Integration und Verwaltung von Informationen sowie die Veranschaulichung der komplexen Informationszusammenh{\"a}nge ist. Die Entwicklung solcher Systeme ist technisch m{\"o}glich. Die Schwierigkeit liegt in der Beschaffung und Strukturierung der f{\"u}r den Planungsprozess relevanten Informationen sowie in ihrer Aufbereitung und Integration in eine digitale Planungsumgebung. Das Bestreben des Forschungsprojektes ist es, Grundlagen f{\"u}r digitale Werkzeuge zu entwickeln die zu plausiblen L{\"o}sungen im Planungsprozess und somit zu erh{\"o}hter Planungssicherheit f{\"u}r die am Bau beteiligten Auftragnehmer und Auftraggeber f{\"u}hren. Es wird angestrebt Programm-Module zu entwickeln, die den Planer bei der Ermittlung von L{\"o}sungswegen zu einer Fachfrage inhaltlich unterst{\"u}tzen und die Nachvollziehbarkeit und Richtigkeit einer Planungsentscheidung gew{\"a}hrleisten und plausibel darlegen. Mit Hilfe der Module sollen Entscheidungsfindungen katalysiert werden. Die Bauvorhaben der Zukunft werden zu einem großen Teil im Bestand liegen. Dieses Faktum erfordert planerische Maßnahmen, f{\"u}r die vollends Werkzeuge und Hilfsmittel fehlen, die zu plausiblen und sicheren Planungsentscheidungen f{\"u}hren. Die Entwicklung solcher Hilfsmittel ist Ziel dieser Forschung. Der Beitrag stellt prototypische Software-Module vor, die sich mit der Problematik der potenziellen Bebaubarkeit einer Grundst{\"u}cksfl{\"a}che auseinander setzen. Die Module verarbeiten Regeln, die den einschl{\"a}gigen Normen und Verordnungen entnommen sind, die bei der Erarbeitung einer Planungsl{\"o}sung eingehalten werden m{\"u}ssen.},
  subject      = {Bauplanung},
  language  = {de}
}
@phdthesis{LopezZermeno,
  author    = {L{\´o}pez Zerme{\~n}o, Jorge Alberto},
  title     = {Isogeometric and CAD-based methods for shape and topology optimization: Sensitivity analysis, B{\´e}zier elements and phase-field approaches},
  doi       = {10.25643/bauhaus-universitaet.4710},
  url       = {http://nbn-resolving.de/urn:nbn:de:gbv:wim2-20220831-47102},
  school      = {Bauhaus-Universit{\"a}t Weimar},
  abstract  = {The Finite Element Method (FEM) is widely used in engineering for solving Partial Differential Equations (PDEs) over complex geometries. To this end, it is required to provide the FEM software with a geometric model that is typically constructed in a Computer-Aided Design (CAD) software. However, FEM and CAD use different approaches for the mathematical description of the geometry. Thus, it is required to generate a mesh, which is suitable for FEM, based on the CAD model. Nonetheless, this procedure is not a trivial task and it can be time consuming. This issue becomes more significant for solving shape and topology optimization problems, which consist in evolving the geometry iteratively. Therefore, the computational cost associated to the mesh generation process is increased exponentially for this type of applications. The main goal of this work is to investigate the integration of CAD and CAE in shape and topology optimization. To this end, numerical tools that close the gap between design and analysis are presented. The specific objectives of this work are listed below: • Automatize the sensitivity analysis in an isogeometric framework for applications in shape optimization. Applications for linear elasticity are considered. • A methodology is developed for providing a direct link between the CAD model and the analysis mesh. In consequence, the sensitivity analysis can be performed in terms of the design variables located in the design model. • The last objective is to develop an isogeometric method for shape and topological optimization. This method should take advantage of using Non-Uniform Rational B-Splines (NURBS) with higher continuity as basis functions. Isogeometric Analysis (IGA) is a framework designed to integrate the design and analysis in engineering problems. The fundamental idea of IGA is to use the same basis functions for modeling the geometry, usually NURBS, for the approximation of the solution fields. The advantage of integrating design and analysis is two-fold. First, the analysis stage is more accurate since the system of PDEs is not solved using an approximated geometry, but the exact CAD model. Moreover, providing a direct link between the design and analysis discretizations makes possible the implementation of efficient sensitivity analysis methods. Second, the computational time is significantly reduced because the mesh generation process can be avoided. Sensitivity analysis is essential for solving optimization problems when gradient-based optimization algorithms are employed. Automatic differentiation can compute exact gradients, automatically by tracking the algebraic operations performed on the design variables. For the automation of the sensitivity analysis, an isogeometric framework is used. Here, the analysis mesh is obtained after carrying out successive refinements, while retaining the coarse geometry for the domain design. An automatic differentiation (AD) toolbox is used to perform the sensitivity analysis. The AD toolbox takes the code for computing the objective and constraint functions as input. Then, using a source code transformation approach, it outputs a code for computing the objective and constraint functions, and their sensitivities as well. The sensitivities obtained from the sensitivity propagation method are compared with analytical sensitivities, which are computed using a full isogeometric approach. The computational efficiency of AD is comparable to that of analytical sensitivities. However, the memory requirements are larger for AD. Therefore, AD is preferable if the memory requirements are satisfied. Automatic sensitivity analysis demonstrates its practicality since it simplifies the work of engineers and designers. Complex geometries with sharp edges and/or holes cannot easily be described with NURBS. One solution is the use of unstructured meshes. Simplex-elements (triangles and tetrahedra for two and three dimensions respectively) are particularly useful since they can automatically parameterize a wide variety of domains. In this regard, unstructured B{\´e}zier elements, commonly used in CAD, can be employed for the exact modelling of CAD boundary representations. In two dimensions, the domain enclosed by NURBS curves is parameterized with B{\´e}zier triangles. To describe exactly the boundary of a two-dimensional CAD model, the continuity of a NURBS boundary representation is reduced to C^0. Then, the control points are used to generate a triangulation such that the boundary of the domain is identical to the initial CAD boundary representation. Thus, a direct link between the design and analysis discretizations is provided and the sensitivities can be propagated to the design domain. In three dimensions, the initial CAD boundary representation is given as a collection of NURBS surfaces that enclose a volume. Using a mesh generator (Gmsh), a tetrahedral mesh is obtained. The original surface is reconstructed by modifying the location of the control points of the tetrahedral mesh using B{\´e}zier tetrahedral elements and a point inversion algorithm. This method offers the possibility of computing the sensitivity analysis using the analysis mesh. Then, the sensitivities can be propagated into the design discretization. To reuse the mesh originally generated, a moving B{\´e}zier tetrahedral mesh approach was implemented. A gradient-based optimization algorithm is employed together with a sensitivity propagation procedure for the shape optimization cases. The proposed shape optimization approaches are used to solve some standard benchmark problems in structural mechanics. The results obtained show that the proposed approach can compute accurate gradients and evolve the geometry towards optimal solutions. In three dimensions, the moving mesh approach results in faster convergence in terms of computational time and avoids remeshing at each optimization step. For considering topological changes in a CAD-based framework, an isogeometric phase-field based shape and topology optimization is developed. In this case, the diffuse interface of a phase-field variable over a design domain implicitly describes the boundaries of the geometry. The design variables are the local values of the phase-field variable. The descent direction to minimize the objective function is found by using the sensitivities of the objective function with respect to the design variables. The evolution of the phase-field is determined by solving the time dependent Allen-Cahn equation. Especially for topology optimization problems that require C^1 continuity, such as for flexoelectric structures, the isogeometric phase field method is of great advantage. NURBS can achieve the desired continuity more efficiently than the traditional employed functions. The robustness of the method is demonstrated when applied to different geometries, boundary conditions, and material configurations. The applications illustrate that compared to piezoelectricity, the electrical performance of flexoelectric microbeams is larger under bending. In contrast, the electrical power for a structure under compression becomes larger with piezoelectricity.},
  subject      = {CAD},
  language  = {en}
}
@inproceedings{LutherKoenke,
  author    = {Luther, Torsten and K{\"o}nke, Carsten},
  title     = {INVESTIGATION OF CRACK GROWTH IN POLYCRYSTALLINE MESOSTRUCTURES},
  editor    = {G{\"u}rlebeck, Klaus and K{\"o}nke, Carsten},
  organization    = {Bauhaus-Universit{\"a}t Weimar},
  doi       = {10.25643/bauhaus-universitaet.2988},
  url       = {http://nbn-resolving.de/urn:nbn:de:gbv:wim2-20170327-29886},
  pages     = {11},
  abstract  = {The design and application of high performance materials demands extensive knowledge of the materials damage behavior, which significantly depends on the meso- and microstructural complexity. Numerical simulations of crack growth on multiple length scales are promising tools to understand the damage phenomena in complex materials. In polycrystalline materials it has been observed that the grain boundary decohesion is one important mechanism that leads to micro crack initiation. Following this observation the paper presents a polycrystal mesoscale model consisting of grains with orthotropic material behavior and cohesive interfaces along grain boundaries, which is able to reproduce the crack initiation and propagation along grain boundaries in polycrystalline materials. With respect to the importance of modeling the geometry of the grain structure an advanced Voronoi algorithm is proposed to generate realistic polycrystalline material structures based on measured grain size distribution. The polycrystal model is applied to investigate the crack initiation and propagation in statically loaded representative volume elements of aluminum on the mesoscale without the necessity of initial damage definition. Future research work is planned to include the mesoscale model into a multiscale model for the damage analysis in polycrystalline materials.},
  subject      = {Architektur <Informatik>},
  language  = {en}
}
@inproceedings{LourensvanRooyen,
  author    = {Lourens, Eliz-Mari and van Rooyen, G.C.},
  title     = {Automating Preliminary Column Force Calculations In Multy-Storey Buildings},
  editor    = {G{\"u}rlebeck, Klaus and K{\"o}nke, Carsten},
  organization    = {Bauhaus-Universit{\"a}t Weimar},
  doi       = {10.25643/bauhaus-universitaet.2986},
  url       = {http://nbn-resolving.de/urn:nbn:de:gbv:wim2-20170327-29864},
  pages     = {10},
  abstract  = {In civil engineering practice, values of column forces are often required before any detailed analysis of the structure has been performed. One of the reasons for this arises from the fast-tracked nature of the majority of construction projects: foundations are laid and base columns constructed whilst analysis and design are still in progress. A need for quick results when feasibility studies are performed or when evaluating the effect of design changes on supporting columns form other situations in which column forces are required, but where a detailed analysis to get these forces seems superfluous. Thus it was concluded that the development of an efficient tool for column force calculations, in which the extensive input required in a finite element analysis is to be avoided, would be highly beneficial. The automation of the process is achieved by making use of a Voronoi diagram. The Voronoi diagram is used a) for subdividing the floor into influence areas and b) as a basis for automatic load assignment. The implemented procedure is integrated into a CAD system in which the relevant geometric information of the floor, i.e. its shape and column layout, can be defined or uploaded. A brief description of the implementation is included. Some comparative results and considerations regarding the continuation of the study are given.},
  subject      = {Architektur <Informatik>},
  language  = {en}
}
@inproceedings{LehnerHartmann,
  author    = {Lehner, Karlheinz and Hartmann, Dietrich},
  title     = {USING INTERVAL ANALYSIS FOR STRUCTURAL ENGINEERING PROBLEMS},
  editor    = {G{\"u}rlebeck, Klaus and K{\"o}nke, Carsten},
  organization    = {Bauhaus-Universit{\"a}t Weimar},
  doi       = {10.25643/bauhaus-universitaet.2984},
  url       = {http://nbn-resolving.de/urn:nbn:de:gbv:wim2-20170327-29844},
  pages     = {10},
  abstract  = {Interval analysis extends the concept of computing with real numbers to computing with real intervals. As a consequence, some interesting properties appear, such as the delivery of guaranteed results or confirmed global values. The former property is given in the sense that unknown numerical values are in known to lie in a computed interval. The latter property states that the global minimum value, for example, of a given function is also known to be contained in a interval (or a finite set of intervals). Depending upon the amount computation effort invested in the calculation, we can often find tight bounds on these enclosing intervals. The downside of interval analysis, however, is the mathematically correct, but often very pessimistic size of the interval result. This is in particularly due to the so-called dependency effect, where a single variable is used multiple times in one calculation. Applying interval analysis to structural analysis problems, the dependency has a great influence on the quality of numerical results. In this paper, a brief background of interval analysis is presented and shown how it can be applied to the solution of structural analysis problems. A discussion of possible improvements as well as an outlook to parallel computing is also given.},
  subject      = {Architektur <Informatik>},
  language  = {en}
}
@inproceedings{Lee2004,
  author    = {Lee, Yungui},
  title     = {Development and application of CAD software in the field of building structures in China},
  doi       = {10.25643/bauhaus-universitaet.89},
  url       = {http://nbn-resolving.de/urn:nbn:de:gbv:wim2-20111215-898},
  year      = {2004},
  abstract  = {PKPM series CAD software is an integrated CAD system for building design, which integrated the following parts: architectural design, structural design, building service design and statistic analysis of quantity and budget. These four parts share the same database with high efficiency. Over 80\% of design corporation in China are using PKPM series CAD software. The detailed information and some key modules of PKPM series CAD software are mainly introduced in this paper.},
  subject      = {Bautechnik},
  language  = {en}
}
@article{KoenigThurowBraunesetal.2010,
  author    = {K{\"o}nig, Reinhard and Thurow, Torsten and Braunes, J{\"o}rg and Donath, Dirk and Schneider, Sven},
  title     = {Technische Einf{\"u}hrung in FREAC: A Framework for Enhancing Research in Architectural Design and Communication},
  doi       = {10.25643/bauhaus-universitaet.1449},
  url       = {http://nbn-resolving.de/urn:nbn:de:101:1-201105183216},
  year      = {2010},
  abstract  = {Im vorliegenden Beitrag wird ein Framework f{\"u}r ein verteiltes dynamisches Produktmodell (FREAC) vorgestellt, welches der experimentellen Softwareentwicklung dient. Bei der Entwicklung von FREAC wurde versucht, folgende Eigenschaften umzusetzen, die bei herk{\"o}mmlichen Systemen weitgehend fehlen: Erstens eine hohe Flexibilit{\"a}t, also eine m{\"o}glichst hohe Anpassbarkeit f{\"u}r unterschiedliche Fachdisziplinen; Zweitens die M{\"o}glichkeit, verschiedene Tools nahtlos miteinander zu verkn{\"u}pfen; Drittens die verteilte Modellbearbeitung in Echtzeit; Viertens das Abspeichern des gesamten Modell-Bearbeitungsprozesses; F{\"u}nftens eine dynamische Erweiterbarkeit sowohl f{\"u}r Softwareentwickler, als auch f{\"u}r die Nutzer der Tools. Die Bezeichnung FREAC umfasst sowohl das Framework zur Entwicklung und Pflege eines Produktmodells (FREAC-Development) als auch die entwickelten Tools selbst (FREAC-Tools).},
  subject      = {CAD},
  language  = {de}
}
@inproceedings{KoenigSchmitt,
  author    = {K{\"o}nig, Reinhard and Schmitt, Gerhard},
  title     = {Backcasting and a new way of command in computational design : Proceedings},
  series = {CAADence in Architecture Conference},
  booktitle = {CAADence in Architecture Conference},
  editor    = {Szoboszlai, Mih{\´a}ly},
  address   = {Budapest},
  doi       = {10.25643/bauhaus-universitaet.2599},
  url       = {http://nbn-resolving.de/urn:nbn:de:gbv:wim2-20160622-25996},
  pages     = {15 -- 25},
  abstract  = {It's not uncommon that analysis and simulation methods are used mainly to evaluate finished designs and to proof their quality. Whereas the potential of such methods is to lead or control a design process from the beginning on. Therefore, we introduce a design method that move away from a "what-if" forecasting philosophy and increase the focus on backcasting approaches. We use the power of computation by combining sophisticated methods to generate design with analysis methods to close the gap between analysis and synthesis of designs. For the development of a future-oriented computational design support we need to be aware of the human designer's role. A productive combination of the excellence of human cognition with the power of modern computing technology is needed. We call this approach "cognitive design computing". The computational part aim to mimic the way a designer's brain works by combining state-of-the-art optimization and machine learning approaches with available simulation methods. The cognition part respects the complex nature of design problems by the provision of models for human-computation interaction. This means that a design problem is distributed between computer and designer. In the context of the conference slogan "back to command", we ask how we may imagine the command over a cognitive design computing system. We expect that designers will need to let go control of some parts of the design process to machines, but in exchange they will get a new powerful command on complex computing processes. This means that designers have to explore the potentials of their role as commanders of partially automated design processes. In this contribution we describe an approach for the development of a future cognitive design computing system with the focus on urban design issues. The aim of this system is to enable an urban planner to treat a planning problem as a backcasting problem by defining what performance a design solution should achieve and to automatically query or generate a set of best possible solutions. This kind of computational planning process offers proof that the designer meets the original explicitly defined design requirements. A key way in which digital tools can support designers is by generating design proposals. Evolutionary multi-criteria optimization methods allow us to explore a multi-dimensional design space and provide a basis for the designer to evaluate contradicting requirements: a task urban planners are faced with frequently. We also reflect why designers will give more and more control to machines. Therefore, we investigate first approaches learn how designers use computational design support systems in combination with manual design strategies to deal with urban design problems by employing machine learning methods. By observing how designers work, it is possible to derive more complex artificial solution strategies that can help computers make better suggestions in the future.},
  subject      = {CAD},
  language  = {en}
}
@article{Koenig2011,
  author    = {K{\"o}nig, Reinhard},
  title     = {Generierung von Grundriss-Layouts mittels hybrider Evolutions-Strategie},
  doi       = {10.25643/bauhaus-universitaet.806},
  url       = {http://nbn-resolving.de/urn:nbn:de:gbv:wim2-20110414-15425},
  year      = {2011},
  abstract  = {Der vorliegende Text beschreibt ein computerbasiertes Verfahren zur L{\"o}sung von Layout-problemen in Architektur und St{\"a}dtebau, welches mit m{\"o}glichst wenig Problemwissen auskommt und schnell brauchbare Ergebnisse liefert, die durch schrittweises Hinzuf{\"u}gen von Problemwissen interaktiv weiter ausgearbeitet werden k{\"o}nnen. F{\"u}r das generative Verfahren wurde eine Evolutions-Strategie verwendet, die mit Mechanismen zur Kollisionserkennung und virtuellen Federn zu einem hybriden Algorithmus kombiniert wurde. Dieser dient erstens der L{\"o}sung des Problems der Dichten Packung von Rechtecken sowie zweitens der Herstellung bestimmter topologischer Beziehungen zwischen diesen Rechtecken. Die Bearbeitung beider Probleme wird durch schrittweise Erweiterung grundlegender Verfahren untersucht, wobei die einzelnen Schritte anhand von Performancetests miteinander verglichen werden. Am Ende wird ein iterativer Algorithmus vorgestellt, der einerseits optimale L{\"o}sungen garantiert und andererseits diese L{\"o}sungen in einer f{\"u}r eine akzeptable Nutzerinteraktion ausreichenden Geschwindigkeit generiert.},
  subject      = {CAD},
  language  = {de}
}
@inproceedings{Koenig,
  author    = {K{\"o}nig, Reinhard},
  title     = {CPlan: An Open Source Library for Computational Analysis and Synthesis},
  series = {33rd eCAADe Conference},
  booktitle = {33rd eCAADe Conference},
  editor    = {Martens, Bob and Wurzer, G, Gabriel and Grasl, Tomas and Lorenz, Wolfgang and Schaffranek, Richard},
  publisher = {Vienna University of Technology},
  address   = {Vienna},
  doi       = {10.25643/bauhaus-universitaet.2503},
  url       = {http://nbn-resolving.de/urn:nbn:de:gbv:wim2-20160118-25037},
  pages     = {245 -- 250},
  abstract  = {Some caad packages offer additional support for the optimization of spatial configurations, but the possibilities for applying optimization are usually limited either by the complexity of the data model or by the constraints of the underlying caad system. Since we missed a system that allows to experiment with optimization techniques for the synthesis of spatial configurations, we developed a collection of methods over the past years. This collection is now combined in the presented open source library for computational planning synthesis, called CPlan. The aim of the library is to provide an easy to use programming framework with a flat learning curve for people with basic programming knowledge. It offers an extensible structure that allows to add new customized parts for various purposes. In this paper the existing functionality of the CPlan library is described.},
  subject      = {Architektur},
  language  = {en}
}
@article{Koenig,
  author    = {K{\"o}nig, Reinhard},
  title     = {Computers in the design phase - Ten thesis on their uselessness},
  series = {Der Generalist},
  journal   = {Der Generalist},
  doi       = {10.25643/bauhaus-universitaet.2607},
  url       = {http://nbn-resolving.de/urn:nbn:de:gbv:wim2-20160622-26075},
  abstract  = {At the end of the 1960s, architects at various universities world- wide began to explore the potential of computer technology for their profession. With the decline in prices for PCs in the 1990s and the development of various computer-aided architectural design systems (CAAD), the use of such systems in architectural and planning offices grew continuously. Because today no ar- chitectural office manages without a costly CAAD system and because intensive soſtware training has become an integral part of a university education, the question arises about what influence the various computer systems have had on the design process forming the core of architectural practice. The text at hand devel- ops ten theses about why there has been no success to this day in introducing computers such that new qualitative possibilities for design result. RESTRICTEDNESS},
  subject      = {CAD},
  language  = {en}
}
@article{Koenig,
  author    = {K{\"o}nig, Reinhard},
  title     = {Die Stadt der Agenten und Automaten},
  series = {FORUM - Architektur \& Bauforum},
  journal   = {FORUM - Architektur \& Bauforum},
  doi       = {10.25643/bauhaus-universitaet.2608},
  url       = {http://nbn-resolving.de/urn:nbn:de:gbv:wim2-20160622-26083},
  abstract  = {PLANUNGSUNTERST{\"U}TZUNG DURCH DIE ANALYSE R{\"A}UMLICHER PROZESSE MITTELS COMPUTERSIMULATIONEN. Erst wenn man - zumindest im Prinzip - versteht, wie eine Stadt mit ihren komplexen, verwobenen Vorg{\"a}ngen im Wesentlichen funktioniert, ist eine sinnvolle Stadtplanung m{\"o}glich. Denn jede Planung bedeutet einen Eingriff in den komplexen Organismus einer Stadt. Findet dieser Eingriff ohne Wissen {\"u}ber die Funktionsweise des Organismus statt, k{\"o}nnen auch die Auswirkungen nicht abgesch{\"a}tzt werden. Dieser Beitrag stellt dar, wie urbane Prozesse mittels Computersimulationen unter Zuhilfenahme so genannter Multi-Agenten-Systeme und Zellul{\"a}rer Automaten verstanden werden k{\"o}nnen. von},
  subject      = {CAD},
  language  = {de}
}
@article{Koenig2010,
  author    = {K{\"o}nig, Reinhard},
  title     = {Generative Planungsmethoden aus strukturalistischer Perspektive},
  doi       = {10.25643/bauhaus-universitaet.811},
  url       = {http://nbn-resolving.de/urn:nbn:de:101:1-201105114205},
  year      = {2010},
  abstract  = {N{\"a}hert man sich der Frage nach den Zusammenh{\"a}ngen zwischen Strukturalismus und generativen algorithmischen Planungsmethoden, so ist zun{\"a}chst zu kl{\"a}ren, was man unter Strukturalismus in der Architektur versteht. Allerdings gibt es letztlich keinen verbindlichen terminologischen Rahmen, innerhalb dessen sich eine solche Kl{\"a}rung vollziehen k{\"o}nnte. Strukturalismus in der Architektur wird oftmals auf ein formales Ph{\"a}nomen und damit auf eine Stilfrage reduziert. Der vorliegende Text will sich nicht mit Stilen und Ph{\"a}nomenen strukturalistischer Architektur auseinandersetzen, sondern konzentriert sich auf die Betrachtung strukturalistischer Entwurfsmethoden und stellt Bez{\"u}ge her zu algorithmischen Verfahren, wobei das Zusammenspiel zwischen regelgeleitetem und intuitivem Vorgehen beim Entwerfen herausgearbeitet wird.},
  subject      = {Strukturalismus},
  language  = {de}
}
@article{Koenig2011,
  author    = {K{\"o}nig, Reinhard},
  title     = {Generating urban structures: A method for urban planning supported by multi-agent systems and cellular automata},
  doi       = {10.25643/bauhaus-universitaet.1448},
  url       = {http://nbn-resolving.de/urn:nbn:de:101:1-201105183228},
  year      = {2011},
  abstract  = {This work is based on the concept that the structure of a city can be defined by six basic urban patterns. To enable more complex urban planning as a long-term objective I have developed a simulation method for generating these basic patterns and for combining them to form various structures. The generative process starts with the two-dimensional organisation of streets followed by the parceling of the remaining areas. An agent-based diffusion-contact model is the basis of these first two steps. Then, with the help of cellular automata, the sites for building on are defined and a three-dimensional building structure is derived. I illustrate the proposed method by showing how it can be applied to generate possible structures for an urban area in the city of Munich.},
  subject      = {CAD},
  language  = {en}
}
@inproceedings{KoenigTauscher,
  author    = {K{\"o}nig, Markus and Tauscher, Eike},
  title     = {BERECHNUNG VON BAUABL{\"A}UFEN MIT VERSCHIEDENEN AUSF{\"U}HRUNGSVARIANTEN},
  editor    = {G{\"u}rlebeck, Klaus and K{\"o}nke, Carsten},
  organization    = {Bauhaus-Universit{\"a}t Weimar},
  doi       = {10.25643/bauhaus-universitaet.2981},
  url       = {http://nbn-resolving.de/urn:nbn:de:gbv:wim2-20170327-29816},
  pages     = {11},
  abstract  = {Prozesse im Bauingenieurwesen sind komplex und beinhalten eine große Anzahl verschiedener Aufgaben mit vielen logischen Abh{\"a}ngigkeiten. Basierend auf diesen projektspezifischen Abh{\"a}ngigkeiten wird gew{\"o}hnlich ein Bauablaufplan manuell erstellt. In der Regel existieren mehrere Varianten und somit alternative Bauabl{\"a}ufe um ein Projekt zu realisieren. Welche dieser Ausf{\"u}hrungsvarianten zur praktischen Anwendung kommt, wird durch den jeweiligen Projektmanager bestimmt. Falls {\"A};nderungen oder St{\"o}rungen w{\"a}hrend des Bauablaufs auftreten, m{\"u}ssen die davon betroffenen Aufgaben und Abl{\"a}ufe per Hand modifiziert und alternative Aufgaben sowie Abl{\"a}ufe stattdessen ausgef{\"u}hrt werden. Diese Vorgehensweise ist oft sehr aufw{\"a}ndig und teuer. Aktuelle Forschungsans{\"a}tze besch{\"a}ftigen sich mit der automatischen Generierung von Bauabl{\"a}ufen. Grundlage sind dabei Aufgaben mit ihren erforderlichen Voraussetzungen und erzeugten Ergebnissen. Im Rahmen dieses Beitrags wird eine Methodik vorgestellt, um Bauabl{\"a}ufe mit Ausf{\"u}hrungsvarianten in Form von Workflow-Netzen zu jeder Zeit berechnen zu k{\"o}nnen. Die vorgestellte Methode wird anhand eines Beispiels aus dem Straßenbau schematisch dargestellt.},
  subject      = {Architektur <Informatik>},
  language  = {de}
}
@inproceedings{KoenigLang,
  author    = {K{\"o}nig, Markus and Lang, H.},
  title     = {ANWENDUNG DES CASE-BASED REASONING BEI DER ERMITTLUNG VON VARIANTEN F{\"u}R DEN OBERBAU VON VERKEHRSFL{\"A}CHEN},
  editor    = {G{\"u}rlebeck, Klaus and K{\"o}nke, Carsten},
  organization    = {Bauhaus-Universit{\"a}t Weimar},
  doi       = {10.25643/bauhaus-universitaet.2980},
  url       = {http://nbn-resolving.de/urn:nbn:de:gbv:wim2-20170327-29808},
  pages     = {9},
  abstract  = {F{\"u}r die Ausf{\"u}hrung des Oberbaus von Verkehrsfl{\"a}chen existiert in Abh{\"a}ngigkeit von projektspezifischen Voraussetzungen eine Vielzahl von verschiedenen Varianten. Aufgrund von Erfahrungen der Projektplaner werden bei {\"a}hnlichen Voraussetzungen h{\"a}ufig gleichartige Ausf{\"u}hrungsvarianten gew{\"a}hlt. Um eine m{\"o}gliche L{\"o}sungsvariante f{\"u}r den Straßenoberbau zu erhalten, sollten daher nicht nur die gesetzlichen Richtlinien sondern auch bereits beendete Projekte ber{\"u}cksichtigt werden. Im Rahmen eines Wissenschaftlichen Kollegs an der Bauhaus-Universit{\"a}t Weimar wurde die Anwendung des Case-Based Reasoning f{\"u}r die Auswahl von Ausf{\"u}hrungsvarianten f{\"u}r den Straßenoberbau untersucht. In diesem Beitrag werden die grundlegenden Konzepte des Case-Based Reasoning und die Bestimmung von {\"a}hnlichen Varianten anhand einfacher Beispiele aus dem Straßenoberbau dargestellt.},
  subject      = {Architektur <Informatik>},
  language  = {de}
}
@inproceedings{Krzizek2000,
  author    = {Krzizek, H.},
  title     = {Reduktion der Konstruktionsparameter von Schal- und Werkpl{\"a}nen des konstruktiven Ingenieurbaues mit rechteckigen Bauteilen durch Ber{\"u}hr- und B{\"u}ndigkeitsbedingungen},
  doi       = {10.25643/bauhaus-universitaet.601},
  url       = {http://nbn-resolving.de/urn:nbn:de:gbv:wim2-20111215-6013},
  year      = {2000},
  abstract  = {F{\"u}r den Entwurf der i.a. aus langen schmalen Rechtecken bestehenden Schal- bzw. Werkpl{\"a}ne wird eine Entwurfsunterst{\"u}tzung vorgestellt, bei der die Gr{\"o}ße der Rechtecke wie immer festgelegt wird, die Lage der Rechtecke aber durch topologische Angaben. Letztere bilden programmtechnisch Bedingungen, wobei zwischen Ber{\"u}hr- und B{\"u}ndigkeitsbedingen unterschieden wird. Diese Angaben positionieren das neue Rechteck im Bezug zu einem bereits platzierten. Zum Beispiel erlaubt die Angabe, die S{\"a}ule ist oberhalb des Fundamentes und belastet dieses mittig, eine eindeutige Festlegung der Lage der S{\"a}ule bei gegebener Lage des Fundamentes und gegebenen Abmessungen beider Rechtecke. Die Formulierung mittels Bedingungen hat den Vorteil daß diese auch bei {\"A}nderung von Abmessungen g{\"u}ltig bleiben. Die hier vorgestellte Eingabeart der relativen Positionierung ist eine Erweiterung des Orthomodus, wie er bei Bau-CAD-Programmen stets gefunden wird.},
  subject      = {CAD},
  language  = {de}
}