@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} } @inproceedings{FahrigNachtweyGellert2004, author = {Fahrig, Torsten and Nachtwey, Bj{\"o}rn and Gellert, Sebastian}, title = {A Product Model based Approach to Interactive CAE Design Optimization}, doi = {10.25643/bauhaus-universitaet.190}, url = {http://nbn-resolving.de/urn:nbn:de:gbv:wim2-20111215-1901}, year = {2004}, abstract = {We present a software prototype for fluid flow problems in civil engineering, which combines essential features of Computational Steering approaches with efficient methods for model transfer and high performance computing. The main components of the system are described: - The modeler with a focus on the data management of the product model - The pre-processing and the post-processing toolkit - The simulation kernel based on the Lattice Boltzmann method - The required hardware for real-time computing}, subject = {Produktmodell}, language = {en} } @article{Huhn2004, author = {Huhn, Michael}, title = {Abstract and Concrete Scenarios in Concurrent Engineering}, doi = {10.25643/bauhaus-universitaet.206}, url = {http://nbn-resolving.de/urn:nbn:de:gbv:wim2-20111215-2068}, year = {2004}, abstract = {An architecture of a distributed planning system for the building industry has been developed. The emphasis is on highly collaborative environments in steelwork, timber construction etc. where designers concurrently handle 3D models. The overall system connects local design systems by the so-called Design Framework DFW. This framework consists of the definition of distributed components and protocols which make the collaborative design work. The process of collaborative design has been formalized on an abstract level. This paper describes how this has been done. A sample is given to illustrate the mapping of concrete scenarios of the 'real design world' to an abstract scenario level. This work is funded by the Deutsche Forschungsgemeinschaft DFG as part of the project SPP1103 (Meißner et al. 2003).}, subject = {Produktmodell}, language = {en} } @inproceedings{ScheerDosSantosHinks2004, author = {Scheer, Sergio and Dos Santos, Aguinaldo and Hinks, John}, title = {An approach for promoting knowledge exchange on production practices through the Internet}, doi = {10.25643/bauhaus-universitaet.82}, url = {http://nbn-resolving.de/urn:nbn:de:gbv:wim2-20111215-821}, year = {2004}, abstract = {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.}, subject = {Bautechnik}, language = {en} } @article{vanTreeckRank2004, author = {van Treeck, Christoph and Rank, Ernst}, title = {Analysis of building structure and topology based on Graph Theory}, doi = {10.25643/bauhaus-universitaet.230}, url = {http://nbn-resolving.de/urn:nbn:de:gbv:wim2-20111215-2308}, year = {2004}, abstract = {Individual views on a building product of people involved in the design process imply different models for planning and calculation. In order to interpret these geometrical, topological and semantical data of a building model we identify a structural component graph, a graph of room faces, a room graph and a relational object graph as aids and we explain algorithms to derive these relations. The application of the technique presented is demonstrated by the analysis and discretization of a sample model in the scope of building energy simulation.}, subject = {Produktmodell}, language = {en} } @article{KangMiranda2004, author = {Kang, Shihchung and Miranda, Eduardo}, title = {Automated Simulation of the Erection Activities in Virtual Construction}, doi = {10.25643/bauhaus-universitaet.231}, url = {http://nbn-resolving.de/urn:nbn:de:gbv:wim2-20111215-2310}, year = {2004}, abstract = {The goal of the research is the development of a computer system to plan, simulate and visualize erection processes in construction. In the research construction cranes are treated as robots with predefined degrees of freedom and crane-specific motion planning techniques are developed to generate time-optimized and collision-free paths for each piece to be erected in the project. Using inverse kinematics and structural dynamics simulation, the computer system then computes the crane motions and velocities necessary to achieve the previously calculated paths. The main benefits of the research are the accurate planning and scheduling of crane operations leading to optimization of crane usage and project schedules, as well as improving overall crane safety in the project. This research is aimed at the development of systems that will allow computer-assisted erection of civil infrastructure and ultimately to achieve fully-automated erection processes using robotic cranes...}, subject = {Produktmodell}, language = {en} } @inproceedings{GebbekenPfeifferVidekhina2004, author = {Gebbeken, Norbert and Pfeiffer, Eberhard and Videkhina, Inna}, title = {Calculation of beam structures with the symbolic computer language Maple}, doi = {10.25643/bauhaus-universitaet.84}, url = {http://nbn-resolving.de/urn:nbn:de:gbv:wim2-20111215-845}, year = {2004}, abstract = {Beside the standard calculation programs for civil engineering buildings mathematical programs have been lately established for the solution of differential equations for the analysis of mechanical and static systems. Programs like Maple, Matlab, MathCAD and Mathematica are popular in this field. To the knowledge of the authors, the widest application functionality offers the program Maple. Its advantages are, e.g. the alternatively symbolic or numerical solution of differential equation systems, the easy handling of parameter studies, the immediate visualization of results, the definition of macros for selected calculation steps and their export in other computer languages and, not least, the automatically generated, very clear documentation of the matehematical calculus.}, subject = {Bautechnik}, language = {en} } @article{ZavadskasKaklauskas2004, author = {Zavadskas, Edmundas Kazimieras and Kaklauskas, Arturas}, title = {Civil Engineering Decision Support Systems in Lithuania}, doi = {10.25643/bauhaus-universitaet.257}, url = {http://nbn-resolving.de/urn:nbn:de:gbv:wim2-20111215-2579}, year = {2004}, abstract = {Civil engineering decision support systems (construction, building life cycle, refurbishment, total quality management, innovation, etc.) created in Lithuania are described in this paper. The above decision support systems comprise of the following constituent parts: data (database and its management system), models (model base and its management system) and a user interface. Presentation of information in databases may be in conceptual (digital, textual, graphical, photographic, video) and quantitative forms. Quantitative information presented involves criteria systems and subsystems, units of measurement, values and initial weight fully defining the variants provided. The databases were developed providing a multiple criteria analysis of alternatives from economical, infrastructure, technical, technological, qualitative, legislative, social and other perspectives. This information is provided in a user-oriented way. Since the analysis of alternatives is usually performed by taking into account economical, infrastructure, technical, technological, qualitative and other factors, a model-base include models which enable a decision maker to carry out a comprehensive analysis of the variants available and make a proper choice. These systems, related questions and practical case study were analysed the paper.}, subject = {Wissensmanagement}, language = {en} } @inproceedings{ChouHsieh2004, author = {Chou, Yu-Hur and Hsieh, Shang-Hsien}, title = {Design of Partial Scoring Assessment System for Reinforcement Concrete Design Course : Development of Partial Scoring Assessment System for Reinforcement Concrete Design Course}, doi = {10.25643/bauhaus-universitaet.90}, url = {http://nbn-resolving.de/urn:nbn:de:gbv:wim2-20111215-905}, year = {2004}, abstract = {In the field of Civil Engineering, the content of reinforcement concrete design course (RC course) has complicated design procedures and many difficult specifications to recognize, so most of the students regard the RC course a tough course, and teachers very often find the class time insufficient. Also, teachers of the RC course usually spend a lot of time in organizing the examinations for handling tedious calculations and complicated logical reasoning. Furthermore, correcting examination papers with partial scoring takes even more time of the teacher's. Therefore, the objective of this research is to design and develop a partial scoring assessment system to meet the needs in engineering design courses, such as the RC course. This assessment system can generate test items with variable parameters. It also supports inference diagnosis on the examinee's misconceptions and gives partial scores in grading the examination. In this research, the example test subject is the analysis of rectangular reinforced concrete beam with single layer steel bars.}, subject = {Bautechnik}, 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} }