@article{KrebsBrueck1997, author = {Krebs, F. and Br{\"u}ck, E.}, title = {3D-Computergrafik und -animation als Instrument der Visualisierung im Bereich Entwurf und Denkmalpflege}, doi = {10.25643/bauhaus-universitaet.523}, url = {http://nbn-resolving.de/urn:nbn:de:gbv:wim2-20111215-5235}, year = {1997}, abstract = {Seit mehreren Jahren wird im Fachbereich Gestaltung, Studiengang Innenarchitektur 3D-Computergrafik und -animation in Lehrveranstaltungen ausgebildet und in Projekt- und Diplomarbeiten als Darstellungsmedium angewandt. Eine besondere Herausforderung stellen dabei die 3D-Visualisierungen von historischen Geb{\"a}uden dar. Mit den beiden nachfolgenden Beispielen soll der Einsatz und die curricularen Verkn{\"u}pfung der CA-Technologie mit Studienarbeiten und Projekten zum Thema >Denkmalpflege< aufgezeigt werden. Rekonstruktion und Visualisierung des ehemaligen >Jagdschlosses Platte< bei Wiesbaden. Mit Unterst{\"u}tzung einer Kunsthistorikerin wurde in einer Studienarbeit das im Krieg zerst{\"o}rte ehemalige Jagdschloß im Computer nachgebildet. Neben der Darstellung des Geb{\"a}ude{\"a}ußeren und des zentralen Innenbereiches wurde eine Animation {\"u}ber die Triangulierung der klassizistischen Geometrie erstellt. Umnutzung historischer Bausubstanz am Beispiel der ehemaligen Klostersanlage >Schiffenberg< bei Gießen. Im Rahmen einer Projektarbeit wurden mehrer Konzepte entwickelt, Entw{\"u}rfe erstellt und mittels Computeranimationen {\"o}ffentlich pr{\"a}sentiert. In Kooperation mit dem Studiengang Fernsehtechnik (FH-Wiesbaden) wurde von zwei Studenten eine Videodokumentation {\"u}ber den gesamten Projektverlauf erstellt. Neben dem Aufzeigen der Arbeitsprozesse und dem Vorstellen des Lehrkonzeptes f{\"u}r die curriculare Einbindung der CA-Technologie werden aktuelle Studienergebnisse anhand von Videoprojektionen vorgestellt.}, subject = {Architektur}, language = {de} } @article{NohPark2004, author = {Noh, Jung-Hwi and Park, Jong-Heon}, title = {A Calculation of Initial Cable Force for Ko-Ha Grand Bridge}, doi = {10.25643/bauhaus-universitaet.245}, url = {http://nbn-resolving.de/urn:nbn:de:gbv:wim2-20111215-2459}, year = {2004}, abstract = {The primary objective of initial shape analysis of a cable stayed bridge is to calculate initial installation cable tension forces and to evaluate fabrication camber of main span and pylon providing the final longitudinal profile of the bridge at the end of construction. In addition, the initial cable forces depending on the alternation of the bridge's shape can be obtained from the analysis, and will be used to provide construction safety during construction. In this research, we conducted numerical experiments for initial shape of Ko-ha bridge, which will be constructed in the near future, using three different typical methods such as continuous beam method, linear truss method, and IIMF (Introducing Initial Member Force) method}, subject = {Finite-Elemente-Methode}, language = {en} } @article{Vaarmann1997, author = {Vaarmann, Otu}, title = {A class of rapidly convergent interative Methods for Problems in mathematical Modelling}, doi = {10.25643/bauhaus-universitaet.522}, url = {http://nbn-resolving.de/urn:nbn:de:gbv:wim2-20111215-5223}, year = {1997}, abstract = {Methods with the convergence order p 2 (Newton`s, tangent hyperbolas, tangent parabolas etc.) and their approximate variants are studied. Conditions are presented under which the approximate variants preserve their convergence rate intrinsic to these methods and some computational aspects (possibilities to organize parallel computation, globalization of a method, the solution of the linear equations versus the matrix inversion at every iteration etc.) are discussed. Polyalgorithmic computational schemes (hybrid methods) combining the best features of various methods are developed and possibilities of their application to numerical solution of two-point boundary-value problem in ordinary differential equations and decomposition-coordination problem in convex programming are analyzed.}, subject = {Mathematisches Modell}, language = {en} } @article{BeerFirmenichRichter2004, author = {Beer, Daniel G. and Firmenich, Berthold and Richter, Torsten}, title = {A Concept for CAD Systems with Persistent Versioned Data Models}, doi = {10.25643/bauhaus-universitaet.204}, url = {http://nbn-resolving.de/urn:nbn:de:gbv:wim2-20111215-2046}, year = {2004}, abstract = {The synchronous distributed processing of common source code in the software development process is supported by well proven methods. The planning process has similarities with the software development process. However, there are no consistent and similarly successful methods for applications in construction projects. A new approach is proposed in this contribution.}, subject = {Produktmodell}, language = {en} } @article{MaQin2004, author = {Ma, Zhiliang and Qin, Liang}, title = {A Framework of Management Information System for Construction Projects}, doi = {10.25643/bauhaus-universitaet.212}, url = {http://nbn-resolving.de/urn:nbn:de:gbv:wim2-20111215-2126}, year = {2004}, abstract = {A comprehensive framework of information management system for construction projects in China has been established through extensive literature survey and field investigation. It utilizes the potential information technologies and covers the practical management patterns as well as the major aspects of construction project management. It can be used to guide and evaluate the design of the information management systems for construction projects in order to make the system to be applicable to a wide variety of construction projects and survive the changes in project management.}, subject = {Mehragentensystem}, language = {en} } @article{ElRayesHyari2004, author = {El-Rayes, Khaled and Hyari, Khalied}, title = {A Multi-objective Model for Optimizing Construction Planning of Repetitive Infrastructure Projects}, doi = {10.25643/bauhaus-universitaet.213}, url = {http://nbn-resolving.de/urn:nbn:de:gbv:wim2-20111215-2135}, year = {2004}, abstract = {This paper presents the development of a model for optimizing resource utilization in repetitive infrastructure projects. The model provides the capability of simultaneous minimization of both project duration and work interruptions for construction crews. The model provides in a single run, a set of nondominated solutions that represent the tradeoff between these two objectives. The model incorporates a multiobjective genetic algorithm and scheduling algorithm. The model initially generates a randomly selected set of solutions that evolves to a near optimal set of tradeoff solutions in subsequent generations. Each solution represents a unique scheduling solution that is associated with certain project duration and a number of interruption days for utilized construction crews. As such, the model provides project planners with alternative schedules along with their expected duration and resource utilization efficiency.}, subject = {Mehragentensystem}, language = {en} } @article{FoorgberMueller1997, author = {Foorgber, U. and M{\"u}ller, Christian}, title = {A Planning Process Model for Computer Supported Cooperative Work in Building Construction}, doi = {10.25643/bauhaus-universitaet.492}, url = {http://nbn-resolving.de/urn:nbn:de:gbv:wim2-20111215-4922}, year = {1997}, abstract = {Increasing complexity of today's buildings requires a high level of integration in the planning process. Common planning strategies, where individual project partners cooperate mainly to exchange results, are not suitable to jointly develop project goals and objectives. Integrated planning, a more holistic approach to deal with complex problems, is based on a high degree of communication amoung team members and leads to a goal oriented cooperation. Current approaches in the reasearch area of Computer Supported Cooperative Work (CSCW) poorly meet the requirements in planning. A planning process model, based on the principles of integrated planning will be introduced, aimed to provide the background for the implementation of a CSCW-platform.}, subject = {Bauwesen}, language = {en} } @article{MironovPahl2004, author = {Mironov, Vadim and Pahl, Peter Jan}, title = {A Prismatic Finite Element for Accurate Arch Dam Analysis}, doi = {10.25643/bauhaus-universitaet.246}, url = {http://nbn-resolving.de/urn:nbn:de:gbv:wim2-20111215-2467}, year = {2004}, abstract = {The displacements and stresses in arch dams and their abutments are frequently determined with 20-node brick elements. The elements are distorted near the contact plane between the wall and the abutment. A cantilever beam testbed has been developed to investigate the consequences of this distortion. It is shown that the deterioration of the accuracy in the computed stresses is significant. A compatible 18-node wedge element with linear stress variation is developed as an alternative to the brick element. The shape of this element type is readily adapted to the shape of the contact plane. It is shown that the accuracy of the computed stresses in the vicinity of the contact plane is improved significantly by the use of wedge elements.}, subject = {Finite-Elemente-Methode}, language = {en} } @article{Rebolj1997, author = {Rebolj, D.}, title = {A Product Model of a Road}, doi = {10.25643/bauhaus-universitaet.458}, url = {http://nbn-resolving.de/urn:nbn:de:gbv:wim2-20111215-4584}, year = {1997}, abstract = {Many errors and delays frequently appear when data is exchanged between particular tasks in the lifecycle of the road. Inter-task connections are therefore of great importance for the quality of the final product. The article describes a product model of a road wich is the kernel of an integrated information system intended to support all important stages of the road lifecycle: design, evaluation (through different analysis procedures), construction, and maintainance. Since particular tasks are often executed at different places and in different companies, the interconnections are supported by a special metafile which contains all specific data of the product model. The concept of the integrated system is object and component oriented. Additionally, existing conventional program packages are included to support some common tasks (methods). A conventional relational database system as well as an open spatial database system with the relevant GIS functionality are included to support the data structures of the model.}, subject = {Straße}, language = {en} } @article{YabukiKotaniShitani2004, author = {Yabuki, Nobuyoshi and Kotani, Jun and Shitani, Tomoaki}, title = {A Steel Bridge Design System Architecture using VR-CAD and Web Service-based Multi-Agents}, doi = {10.25643/bauhaus-universitaet.214}, url = {http://nbn-resolving.de/urn:nbn:de:gbv:wim2-20111215-2146}, year = {2004}, abstract = {This paper presents a new design environment based on Multi-Agents and Virtual Reality (VR). In this research, a design system with a virtual reality function was developed. The virtual world was realized by using GL4Java, liquid crystal shutter glasses, sensor systems, etc. And the Multi-Agent CAD system with product models, which had been developed before, was integrated with the VR design system. A prototype system was developed for highway steel plate girder bridges, and was applied to a design problem. The application verified the effectiveness of the developed system.}, subject = {Mehragentensystem}, language = {en} }