TY  - JOUR
A1  - Semenov, Vitaly
A1  - Bazhan, Andrew
A1  - Morozov, Sergey
T1  - Distributed STEP-Compliant Platform for Multimodal Collaboration in Architecture, Engineering, and Construction
N2  - This paper presents an innovative software platform OpenSTEP intended to build advanced distributed integrated systems and to conduct multidisciplinary collaborative projects in both academy and industry. The paper discusses an open system architecture, methodology, component library and CASE toolkit enabling the developers to build a wide range of interoperable applications and systems compliant with STEP and, particularly, with IFC becoming the increasingly important standard for information integration in architecture, engineering and construction.
KW  - Framework <Informatik>
KW  - API
KW  - STEP
KW  - Verteiltes System
Y1  - 2004
U6  - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:gbv:wim2-20111215-2616
ER  - 
TY  - JOUR
A1  - Semenov, Vitaly
A1  - Alekseeva, Elena
A1  - Tarlapan, Oleg
T1  - Virtual Construction using Map-based Approach
N2  - The paper presents a general map-based approach to prototyping of products in virtual reality environments. Virtual prototyping of products is considered as a consistent simulation and visualization process mapping the source product model into its target visual representations. The approach enables to interrelate formally the product and visual information models with each other by defining mapping rules, to specify a prototyping scenario as a composition of map instances, and then to explore particular product models in virtual reality environments by interpreting the composed scenario. Having been realized, the proposed approach provides for the strongly formalized method and the common software framework to build virtual prototyping applications. As a result, the applications gain in expressiveness, reusability and reliability, as well as take on additional runtime flexibility...
KW  - Produktmodell
KW  - Simulation
KW  - Bautechnik
KW  - Virtuelle Realität
KW  - Bauwerk
Y1  - 2004
U6  - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:gbv:wim2-20111215-2447
ER  - 
TY  - CHAP
A1  - Schäffler, Michael
T1  - Fachkunde des Generalunternehmers versus Fachkunde des Fachbetriebes – Praxisbericht zur Ausführung eines GU-Auftrages
N2  - Möglichkeiten der Projektrealisierung: Einzelvergabe der Planungs- und Bauaufgaben, Vergabe aller Planungs- und Bauaufgaben an einen Generalunternehmer. Die frühzeitige Einbindung eines erfahrenen und fachkundigen Generalunternehmers gibt dem Auftraggeber die Möglichkeit, bei minimiertem Risiko zu einer wirtschaftlich und bautechnisch optimalen Lösung seiner Bauaufgabe zu kommen.
KW  - Baubetriebslehre
KW  - Ausschreibung
KW  - Öffentlicher Auftrag / Vergabe
KW  - Generalunternehmer
Y1  - 2004
U6  - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:gbv:wim2-20111215-7195
ER  - 
TY  - THES
A1  - Schweigel, Stefan
T1  - Aufnahme des Baufortschritts in verteilter Umgebung
N2  - Als Folge des hohen Termindrucks während des Bauablaufes, ist es besonders wichtig den Fortschritt eines Bauvorhabens zeitnah zu überwachen. Auf Großbaustellen kann die effektive Kontrolle nicht mehr ohne technische Hilfsmittel durchgeführt werden. Die Arbeit stellt verschiedene Szenarien für die verteilte Fortschrittserfassung vor und untersucht welche Anforderungen an ein System für die verteilte Erfassung gestellt werden. Dazu wird zuerst das bestehende CVS-System analysiert, um anschließend daraus ein Konzept für die Versionierung von Objekten und den automatischen Abgleich von Objektversionen zu entwickeln. Später wird gezeigt, wie dieses Konzept mit Hilfe von C# und dem Microsoft®-.NET-Framework umgesetzt werden kann.
KW  - Computer Supported Cooperative Work
KW  - Versionsverwaltung
KW  - CVS <Programm>
KW  - Microsoft dot net
KW  - computergestützte Baufortschrittskontrolle
KW  - Versionskontrolle
KW  - Objektversionierung
KW  - Versionsabgleich
KW  - Versionsverschmelzung
KW  - Computer Aided Progress Monitoring
KW  - reconciliation
KW  - merge
KW  - concurrency control
KW  - versions
Y1  - 2004
U6  - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:gbv:wim2-20111215-1534
ER  - 
TY  - THES
A1  - Scholz-Solbach, Kai
T1  - Thermische Effekte der tiefgründigen Bodenstabilisierung mit Branntkalk-Boden-Säulen
T1  - Thermal Effects of Deep Soil Stabilization with Lime Columns
N2  - Gegenstand der Arbeit ist die Untersuchung der bei der Herstellung von Branntkalk-Boden-Säulen auftretenden thermischen Effekte und ihres Einflusses auf Wasser- und Wasserdampftransporte im Boden. Die Erwärmung beruht vorrangig auf einer chemischen Reaktion, bei der das dem Boden zugemischte Calciumoxid mit Bodenwasser unter Freisetzung von Wärmeenergie zu Calciumhydroxid reagiert. Hierzu wurden zunächst die thermischen Eigenschaften feinkörniger Böden und ihre Beeinflussung durch das Herstellen des Bindemittel-Boden-Gemisches in situ untersucht. Weiterhin wurden Untersuchungen zum zeitlichen Verlauf der chemischen Reaktion und zur Größe der dabei freigesetzten Reaktionswärme vorgenommen. Mit dem Vorhaben, die mit der Säulenherstellung einhergehenden Temperaturfeldänderungen zu erfassen, wurden danach die thermischen Anfangs- und Randbedingungen des Bodens und der Bodenoberfläche untersucht und festgelegt. Anschließend wurden die zeitabhängigen Temperaturfeldänderungen auf der Grundlage der Wärmeübertragung durch Wärmeleitung mit Hilfe des Finite-Elemente-Methode Programms Ansys® 6.1 numerisch simuliert. Das Finite-Elemente-Modell wurde durch die Nachrechnung von Feldversuchen verifiziert. Im Rahmen der Finite-Elemente-Berechnungen wurde die infolge der Hydratation des Branntkalkes stattfindende Erwärmung des Bindemittel-Boden-Gemisches und des angrenzenden Bodens simuliert und hinsichtlich relevanter Einflussgrößen überprüft. Untersucht wurde der Einfluss herstellungsbedingter Faktoren wie Bindemittelkonzentration, Säulendurchmesser und Säulenanordnung sowie der Einfluss natürlicher Faktoren wie Trockendichte und Sättigungsgrad des Bodens. Die mit Hilfe der Finite-Elemente-Methode ermittelten zeitabhängigen, im Boden auftretenden Temperaturgefälle bilden die Grundlage für die Untersuchung der thermisch bedingten Wassertransportvorgänge in der Stabilisierungssäule und deren Umfeld. Zu diesem Zweck wurde die durch die Temperaturfeldbeeinflussung geänderte energetische Situation des Bodenwassers analysiert. Auch nicht-thermische, infolge der Säulenherstellung auftretende Effekte wie die durch den >Stopfeffekt< bedingte lokale Sättigungsänderung und die Beeinflussung des osmotischen Potentials einschließlich der daraus resultierenden Wasserbewegungen wurden berücksichtigt. Alle thermisch verursachten Wasser- und Dampfflüsse bewirken ein Abströmen von Porenwasser aus dem stabilisierten Erdkörper in den umliegenden Boden. Baupraktisch bleiben die durch thermische Einflüsse hervorgerufenen Wassertransportvorgänge aufgrund ihres geringen Betrages jedoch unbedeutend. In abschließenden Temperaturfeldberechnungen wurden die thermischen Bodenkennwerte an die sich zeitlich verändernde Wassersättigung des Bodens angepasst. Anhand der ermittelten Temperaturverläufe wurde aufgezeigt, dass der Einfluss der Sättigungsänderung auf die Berechnungsergebnisse sehr gering ist, und damit die Voraussetzung für die vorangegangene entkoppelte Betrachtung des Wärme- und Massestromes erfüllt ist. Aufgrund dieser Ergebnisse muss der mehrfach in der Literatur zitierte, auch mit der tiefgründigen Bodenstabilisierung in Zusammenhang gebrachte, Einfluss der Erwärmung auf die Verdunstung des Bodenwassers kritisch betrachtet und in Frage gestellt werden. Voraussetzung hierfür ist der Transport von Wasser an die Bodenoberfläche. Nennenswerte, auf Temperatureinflüssen beruhende Wasserbewegungen sind, wie die Berechnungsergebnisse gezeigt haben, nicht zu erwarten. Weitere Untersuchungen zur Festigkeitsentwicklung von Branntkalk-Boden-Säulen und deren Vorhersage sollten sich daher auf die mechanischen Effekte und auf die mineralogisch-chemischen Prozesse, wie die puzzolanischen Reaktionen, und die Möglichkeiten ihrer Prognose konzentrieren. Die Berechnungen haben gezeigt, dass die Temperaturentwicklung in der Stabilisierungssäule im Wesentlichen durch die Bindemittelkonzentration, und ihr Auskühlungsverhalten vorrangig durch ihre geometrischen Abmessungen bestimmt wird. Diese Sachverhalte sind von den Bodenparametern, der für die Stabilisierung in Frage kommenden Böden, weitestgehend unabhängig. Temperaturmessungen stellen daher ein geeignetes Mittel zur Qualitätssicherung bei der Herstellung von Branntkalk-Boden-Säulen dar, mit deren Hilfe sich Inhomogenitäten bei der Bindemittelverteilung oder Störungen beim Hydratationsvorgang (Ablöschen des Branntkalkes) nachweisen lassen. Entsprechende Hilfsmittel wurden angegeben.
N2  - Deep stabilization of soil with lime columns causes thermal effects. This is mainly due to the reaction of the unslaked lime with the water in the soil. In this thesis the influence of the thermal effects on the movement of soil water was investigated. In a first step the thermal properties of the stabilized soil in the column and the surrounding soil were analysed. In order to calculate the alteration process of the temperature fields the heat generation coupled to the chemical reaction and the thermal boundary conditions like the distribution of temperature in natural soils were defined. On this base the transient change of the temperature field around the lime columns was computed using the finite element method. The numerical analysis was done with the finite element code ANSYS® 6.1. Due to the high saturation of the stabilized and the surrounding soils only heat transfer by thermal conduction was regarded in the first calculation step. For the present the coupled transport of heat and moisture was neglected as well as the influence of moisture movement on the thermal properties. The model was verified by simulating a large-scale field experiment of the Swedish Geotechnical Institute from which temperature measurements were stated. Very good correlations were achieved between experimental and numerical results. In the next step the influences of the soil parameters, the geometry of the lime columns as well as their arrangement, and the lime concentration on the numerical results were investigated. The computed transient temperature fields and the derived thermal gradients formed the basis for the analysis of temperature-dependent moisture movement in the lime columns and in the surrounding soil. Water and water vapour move due to potential gradients from high to low potential. Therefore, the change of the soil water potential caused by thermal effects was regarded. Also, non-thermal effects such as the change of saturation due to soil compaction and the alteration of the osmotic potential due to dissolution processes were taken into consideration. The calculation results indicated a flow of liquid water and water vapour from the centre of the lime columns towards the surrounding soil. The results also showed that the amount of moisture moved by thermal effects is low and does not contribute to the hardening of the lime columns. In a closing calculation step the change of saturation due to thermal and non-thermal effects was taken into account by adapting the thermal soil parameters to the time-dependent distribution of the soil water. It was shown that the altered saturation has negligible effect on the calculated temperature fields. Therefore, the assumptions made in the first calculation step, concerning the mechanism of heat transfer, were proven true. Based on these results, the often-cited influence of the heat released when unslaked lime reacts with the water in soil has to be called into question, at least in the case of the deep stabilization of soils with lime columns. That would require, for example, the transport of moisture to the soil surface, which according to the results of the calculations is not given. Further investigations into the hardening of lime columns and the prediction of this process should concentrate on mechanical and mineralogical effects such as soil compaction and the pozzolanic reactions. Temperature measurements may serve as a good tool for quality assurance, because the development of heat depends strongly on the lime concentration, while the influence of the soil parameters of the stabilized clayey soils on the change of temperature is very small. Appropriate data were given in this thesis.
KW  - Bodenverbesserung <Bauwesen>
KW  - Kalk-Boden-Säulen
KW  - Bindemittel-Boden-Säulen
KW  - tiefgründige Bodenstabilisierung
KW  - Baugrundverbesserung
KW  - Lime Columns
KW  - Deep Soil Stabilization
Y1  - 2004
U6  - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:gbv:wim2-20050307-3972
ER  - 
TY  - JOUR
A1  - Schnellenbach-Held, Martina
A1  - Hartmann, Markus
T1  - Knowledge Based Systems in Distributed Desgin Environments
N2  - Today’s building industry not only demands more and more reduced construction time on building site, but also an advanced and mostly construction attendant design phase. Even though there is software available to support design processes in distributed environments, most applications only support simple document based exchange of information. In this paper a knowledge based system is presented to support cooperative, comprehensive design processes in distributed environments. The presented research project is financially supported by the German Research Community (DFG – Deutsche Forschungsgemeinschaft).
KW  - Produktmodell
KW  - Bautechnik
KW  - Forschungskooperation
KW  - Wissensmanagement
Y1  - 2004
U6  - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:gbv:wim2-20111215-2106
ER  - 
TY  - CHAP
A1  - Schneider, Mike
T1  - Radio Frequency Identification (RFID) Technology and its Applications in the Commercial Construction Industry
N2  - This paper is a report of Radio Frequency Identification (RFID) technology and its potential applications in the commercial construction industry. RFID technology offers wireless communication between RFID tags and readers with non line-of-sight readability. These fundamental properties eliminate manual data entry and introduce the potential for automated processes to increase project productivity, construction safety, and project cost efficiency. Construction contractors, owners, and material suppliers that believe technology can further develop methods and processes in construction should feel obligated to participate in RFID studies for the advancement of the construction industry as a whole.
KW  - RFID
KW  - Automatische Identifikation
KW  - Materialflusssteuerung
KW  - Bauindustrie
Y1  - 2004
U6  - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:gbv:wim2-20111215-1061
ER  - 
TY  - CHAP
A1  - Schley, Frank
A1  - Mejstrik, Marcus
A1  - Holz, K.-Peter
T1  - Network Based Co-operation Platform for Geotechnical Engineering
N2  - This paper describes an approach to support co-operation of experts in heterogeneous geotechnical engineering project environments during both regular execution and handling of exceptional situations. A co-operation platform is introduced which is based on a generalized information model mapping key information about the construction project, the construction process as well as the organization structure. Several tools are provided to operate the information model in a network based environment.
KW  - Ingenieurbau
KW  - Verteiltes System
KW  - Planungsprozess
KW  - Modellierung
KW  - Geotechnik
Y1  - 2004
U6  - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:gbv:wim2-20111215-1431
ER  - 
TY  - THES
A1  - Schlegel, Roger
T1  - Numerische Berechnung von Mauerwerkstrukturen in homogenen und diskreten Modellierungsstrategien
T1  - Numerical computation of masonry structures using homogenious and discrete modelling strategies
N2  - Im Zentrum der Arbeit stehen die Entwicklung, Verifikation, Implementierung und Leistungsfähigkeit numerischer Berechnungsmodelle für Mauerwerk im Rahmen der Kontinuums- und Diskontinuumsmechanik. Makromodelle beschreiben das Mauerwerk als verschmiertes Ersatzkontinuum. Mikromodelle berücksichtigen durch die Modellierung der einzelnen Steine und Fugen die Struktur des Mauerwerkverbandes. Soll darüber hinaus der durch die Querdehnungsinteraktion zwischen Stein und Mörtel hervorgerufene heterogene Spannungszustand im Mauerwerk abgebildet werden, so ist ein detailliertes Mikromodell, welches Steine und Fugen in ihren exakten geometrischen Dimensionen berücksichtigt, erforderlich. Demgegenüber steht die vereinfachte Mikromodellierung, bei der die Fugen mit Hilfe von Kontaktalgorithmen beschrieben werden. Im Rahmen der Makromodellierung werden neue räumliche Materialmodelle für verschiedene ein- und mehrschalige Mauerwerkarten hergeleitet. Die vorgestellten Modelle berücksichtigen die Anisotropie der Steifigkeiten, der Festigkeiten sowie des Ver- und Entfestigungsverhaltens. Die numerische Implementation erfolgt mit Hilfe moderner elastoplastischer Algorithmen im Rahmen der impliziten Finite Element Methode in das Programm ANSYS. Innerhalb der detaillierten Mikromodellierung wird ein neues, aus Materialbeschreibungen für Stein, Mörtel sowie deren Verbund bestehendes nichtlineares Berechnungsmodell entwickelt und in das Programm ANSYS implementiert. Die diskontinuumsmechanische Beschreibung von Mauerwerk im Rahmen der vereinfachten Mikromodellierung erfolgt unter Verwendung der expliziten Distinkt Element Methode mit Hilfe der Programme UDEC und 3DEC. An praktischen Beispielen werden Probleme der Tragfähigkeitsbewertung gemauerter Bogenbrücken, Möglichkeiten zur Bewertung vorhandener Rissbildungen und Schädigungen an historischen Mauerwerkstrukturen und Traglastberechnungen an gemauerten Stützen ausgewertet und analysiert.
N2  - This dissertation presents the development, verification, implementation and efficiency of numerical models for masonry using continuum mechanics and discontinuum mechanics. For macro modelling three-dimensional elasto-plastic continuum models for regular and irregular, single- and multi-leaf masonry types is developed. The constitutive model is based on the multisurface plasticity theory and includes anisotropic elastic and inelastic behaviour, depending on the orientation of the masonry joints. The yield domain, its hardening law and softening law are defined according to experimental results. On this basis, it is possible to simulate masonry-specific failure and damage mechanisms. For consistent numeric implementation, modern elasto-plastic algorithms were used, including the Return Mapping procedure for local iteration at the integration point level, as well as consistent tangent operators and the Newton-Raphson method. The models were implemented into the implicit Finite-Element code ANSYS. For the detailed micro modelling strategy, a new computational model consist of material models for mortar, stone and bond is developed. For the simplified micro modelling strategy, the explicit distinct element method is used to describe the masonry assembly as a discontinuum. The verification analyses show good concordance between experimental and numerical results for different masonry types. The efficiency of the computation models is finally demonstrated, using sample calculations of large masonry structures.
KW  - Mauerwerk
KW  - Numerisches Verfahren
KW  - Kontinuumsmechanik
KW  - Modellierung
KW  - Makrosimulation
KW  - Mikrosimulation
KW  - Diskontinuumsmechanik
KW  - masonry
KW  - numerical modelling
KW  - continuum mechanic
KW  - discontinuum mechanic
Y1  - 2004
U6  - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:gbv:wim2-20041213-2369
ER  - 
TY  - CHAP
A1  - Schink, Claus-Jürgen
A1  - Koch, Volker
T1  - Interdisciplinary Cooperation Modules in Mobile Networks
N2  - The contribution describes the didactical integration of wireless access networks for the campus of the University of Karlsruhe in the education of architects and engineers. It focuses on the development of an interdisciplinary communication network to encourage and promote the communication and collaboration between students. The project assumes that significant learning progresses in net-based learning scenarios are based upon the synchronous and asynchronous cooperation between the students themselves. The remote cooperation across borders of disciplines makes high demands on capacity in communicating and cooperating of the involved persons as well as on the supporting tools. Therefore, the collective acquisition of knowledge and cooperation has to be trained intensively during the studies. Based on the design and project oriented cooperation platform netzentwurf.de the authors developed the tools “Jobadmin“ to administrate multidisciplinary workgroups, the “Swarm Knowledge Catalogue“ to collect and store knowledge and “LivingCampus“, an instrument providing basic services for dynamic communication.
KW  - Architektur
KW  - Verteiltes System
KW  - Mobile Computing
KW  - Rechnernetz
Y1  - 2004
U6  - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:gbv:wim2-20111215-1788
ER  - 
TY  - GEN
A1  - Schiecke, Steffen
T1  - Eignung alumosilikatischer Polymerbinder zur Modifizierung von Lehmbaustoffen
T1  - Applicability of alumosilicatic polymer binders for mofifikation of clay containing construction materials
N2  - Der Einsatz von Lehmbaustoffen stößt an Grenzen, wenn das Material Feuchtigkeit ausgesetzt ist. Die vorliegende Arbeit enthält Untersuchungen zur Verbesserung der Wasserbständigkeit von Lehmbaustoffen. Es konnte gezeigt werden, dass mittels alumosilikatischer Polymerbinder der Widerstand von Lehmbaustoffen gegen Feuchteeinwirkung erheblich verbessert werden kann. Die positiven bauklimatischen Eigenschaften werden dabei nicht negativ beeinflusst.
KW  - Lehm
KW  - Modifizierung
KW  - Ton <Geologie>
KW  - Anorganisches Bindemittel
KW  - Bindemittel
KW  - Wasserglas
KW  - Feuchtigkeit
KW  - Lehmbau
KW  - Lehmhaus
KW  - Metakaolin
KW  - Geopolymer
KW  - wasserbeständig
KW  - alumosilikatisch
KW  - china clay
KW  - alumosilicatic
Y1  - 2004
U6  - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:gbv:wim2-20100702-15088
ER  - 
TY  - CHAP
A1  - Scheer, Sergio
A1  - Gama, Carmen Lúcia G.
T1  - Learning objects for a teaching and learning network in structural engineering : Developing learning objects for a structural engineering educational network
N2  - Information and Communication Technologies (ITC) in education have been extensively discussed nowadays. In this e-learning scenario, the construction and use of environments that support teaching and learning is a reality. Therefore, for time and general resource savings it is crucial the access to hypermedia contents with great interactivity and with high reusability. Substantial efforts have been centered in the search for a metadata proposal (metadata is a generic term used to describe data that can be used to identify and to describe common characteristics among different documents) that can be standardized and is system independent for the so called learning objects.
KW  - Bautechnik
KW  - Computerunterstütztes Lernen
KW  - Wissensverarbeitung
KW  - learning objects
KW  - repository
KW  - applets
KW  - reusability
KW  - structural engineering
Y1  - 2004
U6  - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:gbv:wim2-20111215-856
ER  - 
TY  - CHAP
A1  - Scheer, Sergio
A1  - Dos Santos, Aguinaldo
A1  - Hinks, John
T1  - An approach for promoting knowledge exchange on production practices through the Internet
N2  - Recent research shows that current learning strategies in construction industry have not been effective in implementing lean principles in construction. With that in mind the researchers set to investigate an alternative learning strategy in order to promote learning at the international level. A web-based environment, was developed for this project with the intent of promoting learning and knowledge exchange on the theory and practice of "process transparency" across different countries.
KW  - Bautechnik
KW  - Computerunterstütztes Lernen
KW  - Wissensverarbeitung
KW  - pull learning
KW  - transparency
KW  - knowledge exchange
KW  - web-based learning
Y1  - 2004
U6  - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:gbv:wim2-20111215-821
ER  - 
TY  - CHAP
A1  - Schapke, Sven-Eric
A1  - Scherer, Raimar J.
T1  - A Four Layer Bayesian Network for Product Model Based Information Mining
N2  - Business and engineering knowledge in AEC/FM is captured mainly implicitly in project and corporate document repositories. Even with the increasing integration of model-based systems with project information spaces, a large percentage of the information exchange will further on rely on isolated and rather poorly structured text documents. In this paper we propose an approach enabling the use of product model data as a primary source of engineering knowledge to support information externalisation from relevant construction documents, to provide for domain-specific information retrieval, and to help in re-organising and re-contextualising documents in accordance to the user’s discipline-specific tasks and information needs. Suggested is a retrieval and mining framework combining methods for analysing text documents, filtering product models and reasoning on Bayesian networks to explicitly represent the content of text repositories in personalisable semantic content networks. We describe the proposed basic network that can be realised on short-term using minimal product model information as well as various extensions towards a full-fledged added value integration of document-based and model-based information.
KW  - Bauwerk
KW  - Datenmanagement
KW  - Produktmodell
Y1  - 2004
U6  - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:gbv:wim2-20111215-1207
ER  - 
TY  - CHAP
A1  - Rueppel, Uwe
A1  - Meißner, Udo F.
A1  - Greb, Steffen
T1  - A Petri Net based Method for Distributed Process Modelling in Structural Engineering
N2  - The contribution introduces a method for the distributed process modelling in order to support the process orientation in Structural Engineering, i.e., the modelling, analysis and management of planning processes. The approach is based on the Petri Net theory for the modelling of planning processes and workflows in Structural Engineering. Firstly, a central and coarse process model serves as a pre-structuring system for the detailed modelling of the technical planning activities. Secondly, the involved planning participants generate distributed process models with detailed technical workflow information. Finally, these distributed process models will be combined in the central workflow net. The final net is of great importance for the process orientation in Structural Engineering, i.e., the identification, publication, analysis, optimization and finally the management of planning processes.
KW  - Ingenieurbau
KW  - Verteiltes System
KW  - Planungsprozess
KW  - Modellierung
KW  - Petri-Netz
Y1  - 2004
U6  - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:gbv:wim2-20111215-1338
ER  - 
TY  - CHAP
A1  - Rueppel, Uwe
A1  - Klauer, Thomas
T1  - Internet-based Workflow-Management for Civil Engineering Projects
N2  - The growing competition pressure in the building industry increases the demands on the design and construction processes in respect to economical, technical and time aspects. These demands require efficient improvements of the value-added chain, which can be realized mainly with the usage of innovative information- and communication-technologies. To support the collaboration of all participants involved in a certain building project the Workflow-Management-System “BauKom-Online” has been developed. In the focus of the system is to support the coordination of the participants and their information exchange. Such a software-method is well suited to ensure a high quality planning process. The modelling of business-processes enables a better self-comprehension of the participants work and helps to enhance the project performance. The system architecture of BauKom-Online contains two basic components: the processmodelling tool and the workflow-engine. The process-model contains of activities and states of the planning and construction processes and their relations. These connected processes compose the workflow. Such a process-model for engineering purposes has to satisfy several needs, e.g., the consideration of planning and building alternatives, dynamic changes of the model during execution of the project and the linkage to further technical objects like costs, building structure, specifications and documentmanagement. Furthermore, the scheduling of the project can be done within the process-model and can be visualized as a Gantt-diagram. ...
KW  - Baubetrieb
KW  - Computerunterstütztes Verfahren
KW  - Prozessmanagement
KW  - Internet
Y1  - 2004
U6  - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:gbv:wim2-20111215-1647
ER  - 
TY  - CHAP
A1  - Rueppel, Uwe
A1  - Gutzke, Thomas
T1  - Groundwater-Monitoring based on dynamic co-operative eGovernment-Processes
N2  - As a result of the pilot-project “Grundwasser-Online” the supervision and the active controlling of large monitoring- and catchment-areas are realised by a co-operative integration of all related institutions, a synchronisation-process to combine all distributed data into one central server database, and a high-level eGovernment-Service to provide evaluated information over the internet. Based on this software system the local authorities are able to supervise the groundwater-levels and to find adequate decisions, which finally result in official permissions for the usage of groundwater-reservoirs by the water supply companies.
KW  - Baubetrieb
KW  - Computerunterstütztes Verfahren
KW  - Grundwasser
KW  - Monitorüberwachung
Y1  - 2004
U6  - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:gbv:wim2-20111215-1611
ER  - 
TY  - JOUR
A1  - Rose, Martin
T1  - Modeling of Freeway Traffic
N2  - An integrated modeling of freeway traffic is developed, whose implementation in an uniform computer –aided simulation model facilitate comparative evaluation and systematic coupling of several traffic simulations, traffic controls, traffic measurements and traffic scenarios. The integrated modeling of freeway traffic is a basic mapping of freeway networks, control methods, measurements and different simulations of traffic flow...
KW  - Verkehrsplanung
KW  - Simulation
KW  - Autobahn
Y1  - 2004
U6  - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:gbv:wim2-20111215-2639
ER  - 
TY  - JOUR
A1  - Romberg, Richard
A1  - Niggl, Andreas
A1  - van Treeck, Christoph
T1  - Structural Analysis based on the Product Model Standard IFC
N2  - In this paper we present a computer aided method supporting co-operation between different project partners, such as architects and engineers, on the basis of strictly three-dimensional models. The center of our software architecture is a product model, described by the Industry Foundation Classes (IFC) of the International Alliance for Interoperability (IAI). From this a geometrical model is extracted and automatically transferred to a computational model serving as a basis for various simulation tasks. In this paper the focus is set on the advantage of the fully three-dimensional structural analysis performed by p-version of the finite element analysis. Other simulation methods are discussed in a separate contribution of this Volume (Treeck 2004). The validity of this approach will be shown in a complex example.
KW  - Produktmodell
KW  - Simulation
KW  - Bautechnik
KW  - Statik
KW  - Standard
Y1  - 2004
U6  - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:gbv:wim2-20111215-2433
ER  - 
TY  - CHAP
A1  - Rodriguez, Adhamina
T1  - Information Exchange in The Construction Industry : The Particular Case of Green Buildings
N2  - Construction is a conservative industry that over the last twenty ye ars has experienced drastic changes in the way that interdisciplinary teams interact to design and execute a project. In this article we offer a general overview of how the main participants cooperate in the different phases of a construction project, and which are some of the main areas for communication improvement. We also explore the communication tools used in the exchange of information, and identify the main causes of information breakdown. The general framework of this study is of application to both standard and green projects. At the end of the article we discuss the peculiarities of green buildings. Our goal is to offer a series of industry insights derived from the perspective of a general contractor aimed at identifying the areas where contributions in computing and information exchange could have a greater impact on the successful completion of a project.
KW  - Architektur
KW  - Verteiltes System
KW  - Informationsaustausch
Y1  - 2004
U6  - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:gbv:wim2-20111215-1757
ER  -