@inproceedings{SchinkKoch2004, author = {Schink, Claus-J{\"u}rgen and Koch, Volker}, title = {Interdisciplinary Cooperation Modules in Mobile Networks}, doi = {10.25643/bauhaus-universitaet.178}, url = {http://nbn-resolving.de/urn:nbn:de:gbv:wim2-20111215-1788}, year = {2004}, abstract = {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.}, subject = {Architektur}, language = {en} } @inproceedings{PengLawLau2004, author = {Peng, Jun and Law, Kincho and Lau, Gloria}, title = {Internet-Enabled Software Model for Nonlinear Structural Analysis and Simulations}, doi = {10.25643/bauhaus-universitaet.105}, url = {http://nbn-resolving.de/urn:nbn:de:gbv:wim2-20111215-1057}, year = {2004}, abstract = {This paper describes an Internet-enabled software model that could facilitate the development and utilization of nonlinear structural analysis programs. The software model allows users easy access to the analysis core program and the analysis results by using a web-browser or other application programs. In addition, new and legacy codes can be incorporated as distributed services and be integrated with the software framework from disparate sites. A distributed project management system, taking advantages of Internet and database technologies, is implemented to store and manage model information and simulation results. Nonlinear dynamic analysis and simulations of a bridge structure is performed to illustrate the facilities of the Internet-enabled software model.}, subject = {Konzipieren }, language = {en} } @phdthesis{Richter2009, author = {Richter, Torsten}, title = {Konzepte f{\"u}r den Einsatz versionierter Objektmodelle im Bauwesen}, doi = {10.25643/bauhaus-universitaet.1413}, url = {http://nbn-resolving.de/urn:nbn:de:gbv:wim2-20100115-14935}, school = {Bauhaus-Universit{\"a}t Weimar}, year = {2009}, abstract = {Bauwerke sind in der Regel Unikate, f{\"u}r die meist eine komplette und aufw{\"a}ndige Neuplanung durchzuf{\"u}hren ist. Der Umfang und die Verschiedenartigkeit der einzelnen Planungsaufgaben bedingen ein paralleles Arbeiten der beteiligten Fachplaner. Dar{\"u}ber hinaus ist die Bauplanung ein kreativer und iterativer Prozess, der durch h{\"a}ufige {\"A}nderungen des Planungsmaterials und Abstimmungen zwischen den Fachplanern gekennzeichnet ist. Mithilfe von speziellen Fachanwendungen erstellen die Planungsbeteiligten verschiedene Datenmodelle, zwischen denen fachliche Abh{\"a}ngigkeiten bestehen. Ziel der Arbeit ist es, die Konsistenz der einzelnen Fachmodelle eines Bauwerks sicherzustellen, indem Abh{\"a}ngigkeiten auf Basis von Objektversionen definiert werden. Voraussetzung daf{\"u}r ist, dass die Fachanwendungen nach dem etablierten Paradigma der objektorientierten Programmierung entwickelt wurden. Das sequentielle und parallele Arbeiten mehrerer Fachplaner wird auf Basis eines optimistischen Zugriffsmodells unterst{\"u}tzt, das ohne Schreibsperren auskommt. Weiterhin wird die Historie des Planungsmaterials gespeichert und die Definition von rechtsverbindlichen Freigabest{\"a}nden erm{\"o}glicht. Als Vorbild f{\"u}r die Systemarchitektur diente das Softwarekonfigurationsmanagement, dessen Versionierungsansatz meist auf einem Client-Server-Modell beruht. Die formale Beschreibung des verwendeten Ansatzes wird {\"u}ber die Mengenlehre und Relationenalgebra vorgenommen, so dass er allgemeing{\"u}ltig und technologieunabh{\"a}ngig ist. Auf Grundlage dieses Ansatzes werden Konzepte f{\"u}r den Einsatz versionierter Objektmodelle im Bauwesen erarbeitet und mit einer Pilotimplementierung basierend auf einer Open-Source-Ingenieurplattform an einem praxisnahen Szenario verifiziert. Beim Entwurf der Konzepte wird besonderer Wert auf die Handhabbarkeit der Umsetzung gelegt. Das betrifft im Besonderen die hierarchische Strukturierung des Projektmaterials, die ergonomische Gestaltung der Benutzerschnittstellen und der Erzielung von geringen Anwortzeiten. Diese Aspekte sind eine wichtige Voraussetzung f{\"u}r die Effizienz und Akzeptanz von Software im praktischen Einsatz. Bestehende Fachanwendungen k{\"o}nnen durch geringen Entwicklungsaufwand einfach in die verteilte Umgebung integriert werden, ohne sie von Grund auf programmieren zu m{\"u}ssen.}, subject = {Computer Supported Cooperative Work}, language = {de} } @inproceedings{RenShiXu2004, author = {Ren, Aizhu and Shi, Jianyong and Xu, Yun}, title = {Modeling of Buildings and Roads for Urban Applications based on 2D Digital Maps}, doi = {10.25643/bauhaus-universitaet.179}, url = {http://nbn-resolving.de/urn:nbn:de:gbv:wim2-20111215-1791}, year = {2004}, abstract = {Three-dimensional models of urban objects play an important role in the urban applications such as urban planning, environmental concerning, or urban disaster mitigations. While the modeling of urban objects is time consuming and storage costing. This paper presents solutions for this. Buildings with regular shapes and plane roofs are constructed into computer models by identifying of graphic elements from the digital maps of urban area to get building base plane and building heights. Buildings with irregular shapes and non-plane roofs are constructed into computer models by employment of a specific system developed by the authors. Road objects and topologies are constructed into computer models by employment of specific algorithms. The solutions presented in this paper has been used in the development of urban disaster mitigation system for Shantou, China.}, subject = {Architektur}, language = {en} } @inproceedings{EslimyIsfahanyPegels2004, author = {Eslimy-Isfahany, S. H. R. and Pegels, Georg}, title = {Net-distributed Co-operation Including Developing Countries, Practical Case Study - Iran}, doi = {10.25643/bauhaus-universitaet.142}, url = {http://nbn-resolving.de/urn:nbn:de:gbv:wim2-20111215-1421}, year = {2004}, abstract = {The scientific transfer of key technology features to developing countries, together with adequate competence, localisation and adaptation, is the primary purpose of the proposed investigation. It is evident that introducing high-level CAD design and detailing will improve the planning process in developing countries. Successful utilization of applied information technology for the planning process, however, depends on the user-interface of individual software. Therefore, to open the great opportunity embedded in CAD software for clients globally, the language and character-set barrier of traditional user-interfaces must be overcome. A proposal for a research program is given here to address such issue in favour of global civil engineering.}, subject = {Ingenieurbau}, language = {en} } @inproceedings{SchleyMejstrikHolz2004, author = {Schley, Frank and Mejstrik, Marcus and Holz, K.-Peter}, title = {Network Based Co-operation Platform for Geotechnical Engineering}, doi = {10.25643/bauhaus-universitaet.143}, url = {http://nbn-resolving.de/urn:nbn:de:gbv:wim2-20111215-1431}, year = {2004}, abstract = {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.}, subject = {Ingenieurbau}, language = {en} } @inproceedings{MeissnerRueppelTheiss2004, author = {Meißner, Udo F. and Rueppel, Uwe and Theiss, Mirko}, title = {Network-Based Fire Engineering Supported by Agents}, doi = {10.25643/bauhaus-universitaet.144}, url = {http://nbn-resolving.de/urn:nbn:de:gbv:wim2-20111215-1447}, year = {2004}, abstract = {Building design in Civil Engineering is characterized by the cooperation of experts in multiple disciplines. Close cooperation of engineers in different fields is the basis of high product quality, short development periods and a minimum of investment costs. For each building the engineers have to create a new fire engineering model. The consistent realization of the fire engineering model in all details has high demands on communication, collaboration and building models. Thereby, to preserve the related design models consistent to each other and compatible with the rules of fire engineering is a complex task. In addition, regulations and guidelines vary according to the building location, so the knowledge base must be integrated dynamically into the planning process. This contribution covers the integration of engineers and design models into a cooperation network on the basis of mobile agents. The distributed models of architectural design, structural planning and fire engineering are supported. These models are implemented as XML-based models which can be accessed by mobile agents for information retrieval and for processing tasks. Agents are provided to all planners, they are enabled to check up the distributed design models with the knowledge base of the fire protection regulations,. With the use of such an agent each planner is supported to check up his planning for accordance with the fire protection requirements. The fire-engineering-agent analyzes the design and detects inconsistencies by processing fire protection requirements and design model facts in a rule-based expert system. The possibility to check the planning information at an early state in the sense of compatibility to the fire protection regulations enables a comprehensive diagnosis of the design and the reduction of planning errors.}, subject = {Ingenieurbau}, language = {en} } @inproceedings{PetzoldBartelsDonath2004, author = {Petzold, Frank and Bartels, Heiko and Donath, Dirk}, title = {New techniques in Building Surveying}, doi = {10.25643/bauhaus-universitaet.180}, url = {http://nbn-resolving.de/urn:nbn:de:gbv:wim2-20111215-1803}, year = {2004}, abstract = {Building activities in the construction industry in Germany increasingly concentrate on building measures in or involving the existing built environment. Before planning can begin, buildings must be surveyed in whole or in part with the surveying of geometric data playing a dominant role. The geometric survey is typically undertaken using geodetic or photogrammetric measuring techniques and equipment that have been adapted for use in building surveying. Accordingly appropriate technical knowledge is required in order to be able to operate them as well as a considerable financial investment. Such equipment and surveying methods are usually adaptations from other disciplines. The paper discusses and presents approaches to developing "new" equipment for building surveying, devised with the needs of building surveying in mind - redesigns or new designs for surveying tools. The designs are the result of an inter-disciplinary project between the Faculty of Architecture and the Faculty of Product Design at the Bauhaus Universit{\"a}t Weimar.}, subject = {Architektur}, language = {en} } @inproceedings{vanRooyenOlivier2004, author = {van Rooyen, G.C. and Olivier, A. H.}, title = {Notes on structural analysis in a distributed collaboratory}, doi = {10.25643/bauhaus-universitaet.145}, url = {http://nbn-resolving.de/urn:nbn:de:gbv:wim2-20111215-1451}, year = {2004}, abstract = {The worldwide growth of communication networks and associated technologies provide the basic infrastructure for new ways of executing the engineering process. Collaboration amongst team members seperated in time and location is of particular importance. Two broad themes can be recognized in research pertaining to distributed collaboration. One theme focusses on the technical and technological aspects of distributed work, while the other emphasises human aspects thereof. The case of finite element structural analysis in a distributed collaboratory is examined in this paper. An approach is taken which has its roots in human aspects of the structural analysis task. Based on experience of how structural engineers currently approach and execute this task while utilising standard software designed for use on local workstations only, criteria are stated for a software architechture that could support collaborative structural analysis. Aspects of a pilot application and the results of qualitative performance measurements are discussed.}, subject = {Ingenieurbau}, language = {en} } @inproceedings{MundaniBungartz2004, author = {Mundani, Ralf-Peter and Bungartz, Hans-Joachim}, title = {Octrees for Cooperative Work in a Network-Based Environment}, doi = {10.25643/bauhaus-universitaet.146}, url = {http://nbn-resolving.de/urn:nbn:de:gbv:wim2-20111215-1460}, year = {2004}, abstract = {Assuring global consistency in a cooperative working environment is the main focus of many nowaday research projects in the field of civil engineering and others. In this paper, a new approach based on octrees will be discussed. It will be shown that by the usage of octrees not only the management and control of processes in a network-based working environment can be optimised but also an efficient integration platform for processes from various disciplines - such as architecture and civil engineering - can be provided. By means of an octree-based collision detection resp. consistency assurance a client-server-architecture will be described as well as sophisticated information services for a further support of cooperative work.}, subject = {Ingenieurbau}, language = {en} } @inproceedings{TonnWolkowiczThurow2004, author = {Tonn, Christian and Wolkowicz, Christian and Thurow, Torsten}, title = {Plausibility in Architectural Design - DOMEdesign - Software Support for the formal shaping and architect-oriented design of shell structures}, doi = {10.25643/bauhaus-universitaet.181}, url = {http://nbn-resolving.de/urn:nbn:de:gbv:wim2-20111215-1812}, year = {2004}, abstract = {Complex gridshell structures used in architecturally ambitious constructions remain as appealing as ever in the public realm. This paper describes the theory and approach behind the software realisation of a tool which helps in finding the affine self-weight geometry of gridshell structures. The software tool DOMEdesign supports the formal design process of lattice and grid shell structures based upon the laws of physics. The computer-aided simulation of suspension models is used to derive structurally favourable forms for domes and arches subject to compression load, based upon the input of simple architectonic parameters. Irregular plans, three-dimensional topography, a choice different kinds of shell lattice structures and the desired height of the dome are examples of design parameters which can be used to modify the architectural design. The provision of data export formats for structural dimensioning and visualisation software enables engineers and planners to use the data in future planning and to communicate the design to the client.}, subject = {Architektur}, language = {en} } @inproceedings{WenderDonathPetzold2004, author = {Wender, Katrin and Donath, Dirk and Petzold, Frank}, title = {Preparation and provision of building information for planning within existing built contexts}, doi = {10.25643/bauhaus-universitaet.182}, url = {http://nbn-resolving.de/urn:nbn:de:gbv:wim2-20111215-1829}, year = {2004}, abstract = {A prerequisite for planning within existing built contexts is precise information regarding the building substance, its construction and materials, possible damages and any modifications and additions that may have occurred during its lifetime. Using the information collected in a building survey the user should be able to "explore" the building in virtual form, as well as to assess the information contained with regard to a specific planning aspect. The functionality provided by an information module should cover several levels of information provision ranging from 'simple retrieval' of relevant information to the analysis and assessment of stored information with regard to particular question sets. Through the provision of basic functionality at an elementary level and the ability to extend this using plug-ins, the system concept of an open extendable system is upheld. Using this modular approach, different levels of information provision can be provided as required during the planning process.}, subject = {Architektur}, language = {en} } @inproceedings{BerkhahnKinkeldeySchleinkofer2004, author = {Berkhahn, Volker and Kinkeldey, Christoph and Schleinkofer, Matthias}, title = {Re-Engineering Based on Construction Drawings - From Ground Floor Plan to Product Model}, doi = {10.25643/bauhaus-universitaet.183}, url = {http://nbn-resolving.de/urn:nbn:de:gbv:wim2-20111215-1832}, year = {2004}, abstract = {For the management or reorganisation of existing buildings, data concerning dimensions and construction are necessary. Often these data are given exclusively by paper-based drawings and no digital data such as a computer based product model or even a CAD-model are available. In order to perform mass calculation, damage mapping or a recalculation of the structure these drawings of the building under consideration have to be analysed manually by the engineer. This is a very time-consuming job. In order to close this gap between drawings of an existing building and a digital product model an approach is presented in this paper to digitise a drawing, to build up geometric and topologic models and to recognise construction parts of the building. Finally all recognised parts are transformed into a three-dimensional geometric model which provides all necessary geometric information for the product model. During this import process the semantics of a ground floor plan has to be converted into a 3D-model.}, subject = {Architektur}, language = {en} } @inproceedings{LehnerHartmann2004, author = {Lehner, Karlheinz and Hartmann, Dietrich}, title = {Scenarios for the deployment of distributed engineering applications}, doi = {10.25643/bauhaus-universitaet.147}, url = {http://nbn-resolving.de/urn:nbn:de:gbv:wim2-20111215-1476}, year = {2004}, abstract = {Although there are some good reasons to design engineering software as a stand-alone application for a single computer, there are also numerous possibilities for creating distributed engineering applications, in particular using the Internet. This paper presents some typical scenarios how engineering applications can benefit from including network capabilities. Also, some examples of Internet-based engineering applications are discussed to show how the concepts presented can be implemented.}, subject = {Ingenieurbau}, language = {en} } @inproceedings{AldaCremersBilek2004, author = {Alda, Sascha and Cremers, Armin B. and Bilek, Jochen}, title = {Support of Collaborative Structural Design Processes through the Integration of Peer-to-Peer and Multiagent Architectures}, doi = {10.25643/bauhaus-universitaet.148}, url = {http://nbn-resolving.de/urn:nbn:de:gbv:wim2-20111215-1481}, year = {2004}, abstract = {Structural engineering projects are increasingly organized in networked cooperations due to a permanently enlarged competition pressure and a high degree of complexity while performing the concurrent design activities. Software that intends to support such collaborative structural design processes implicates enormous requirements. In the course of our common research work, we analyzed the pros and cons of the application of both the peer-to-peer (University of Bonn) and multiagent architecture style (University of Bochum) within the field of collaborative structural design. In this paper, we join the benefits of both architecture styles in an integrated conceptual approach. We demonstrate the surplus value of the integrated multiagent-peer-to-peer approach by means of an example scenario in which several structural engineers are co-operatively designing the basic structural elements of an arched bridge, applying heterogeneous CAD systems.}, subject = {Ingenieurbau}, language = {en} } @inproceedings{PetzoldDonath2004, author = {Petzold, Frank and Donath, Dirk}, title = {The building as a container of information : the starting point for project development and design formulation}, doi = {10.25643/bauhaus-universitaet.184}, url = {http://nbn-resolving.de/urn:nbn:de:gbv:wim2-20111215-1848}, year = {2004}, abstract = {For planning in existing built contexts, the building survey is the starting point for initial planning proposals, for the diagnosis and documentation of building damages, for the creation of objectives catalogues, for the detailed design of renovation and conversion measures and for ensuring fulfilment of building legislation, particularly by change of use and refitting. An examination of currently available IT-tools shows insufficient support for planning within existing contexts, most notably a deficit with regard to information capture and administration. This paper discusses the concept for a modular surveying system (basic concept, separation of geometry from semantic data, and separation into sub-systems) and the prototypical realisation of a system for the complete support of the entire building surveying process for existing buildings. The project aims to contribute to the development of a planning system for existing buildings. ...}, subject = {Architektur}, language = {en} } @inproceedings{MilesTaylorAnumba2004, author = {Miles, John and Taylor, Mark and Anumba, Chimay}, title = {VRML Virtual Worlds - An Alternative to the Desktop Metaphor for GUI's?}, doi = {10.25643/bauhaus-universitaet.185}, url = {http://nbn-resolving.de/urn:nbn:de:gbv:wim2-20111215-1855}, year = {2004}, abstract = {Metaphors are commonly used by software developers in the creation of GUI's. This paper looks at the use of multi-user VRML to create virtual metaphors, developing a conceptual design tool that can be used intuitively with little or no training.}, subject = {Architektur}, language = {en} } @inproceedings{Molkenthin2004, author = {Molkenthin, Frank}, title = {Web-based Collaborative Engineering based on Information Sharing - HydroWeb: An Education Experiment in the Internet}, doi = {10.25643/bauhaus-universitaet.186}, url = {http://nbn-resolving.de/urn:nbn:de:gbv:wim2-20111215-1869}, year = {2004}, abstract = {This paper describes the concept and experiences of the international Open Distance Learning Course 'HydroWeb'. This course deals with the introduction of Web-based Collaborative Engineering in standard education programmes of water related engineering and civil engineering based on information sharing. Organized under the umbrella of IAHR and ETNET21 this course is collaboration from several universities from all over the world. Started in 1999 the course demonstrates the potential and innovative opportunities of Web-Technology in education, research and engineering: Students from the different partner universities form small distributed teams to solve a given engineering problem in a time window of two weeks. To overcome the spatial distribution the students apply modern Web technology such as video conferencing, application sharing and document management. All results as well as the final reports are presented as Web document on a shared Web-based project platform (http://www.hydro-web.org). Besides the experiences to apply standard Web tools and working methods based on information sharing instead the conventional information exchange in the daily engineering work the students improve their soft skills operate successfully in international and interdisciplinary project environments as part of the 'Technical Culture' of nowadays.}, subject = {Architektur}, language = {en} } @inproceedings{KangLhoKim2004, author = {Kang, Julian and Lho, Byeong-Cheol and Kim, Jeong-Hoon}, title = {XML-based Vector Graphics: Application for Web-based Design Automation}, doi = {10.25643/bauhaus-universitaet.187}, url = {http://nbn-resolving.de/urn:nbn:de:gbv:wim2-20111215-1872}, year = {2004}, abstract = {Most retaining walls and box culverts built for arterial road construction are simple, and the design process of these structures is often repetitive and labor-intensive because they are so similar in structural configuration. Although some integrated design automation systems developed for retaining walls and box culverts have expedited the design process of these structures, the process of collecting and distributing the resultant engineering documents has not been fully integrated with the computer applications. We have been developing a Web-based design automation system to manage the resultant documents as well as to speed up the repetitive design process. Manipulation of engineering drawings in the Web page is one of the critical functions needed for Web-based design automation. eXtensible Markup Language (XML) and XML-based vector graphics are expected to facilitate the representation of engineering drawings in the Web page. In this paper, we present how we used XML and Scalable Vector Graphics (SVG) to compose engineering drawings and represent them in the Web page. XML Data Island we designed to define drawing components turned out effective in manipulating the engineering drawings in the Web page.}, subject = {Architektur}, language = {en} }