@article{Abdalla2004,
  author    = {Abdalla, Jamal},
  title     = {Elements of an Agent-based Mediative Communication Protocol for Design Objects},
  doi       = {10.25643/bauhaus-universitaet.220},
  url       = {http://nbn-resolving.de/urn:nbn:de:gbv:wim2-20111215-2207},
  year      = {2004},
  abstract  = {Integrated structural engineering system usually consists of large number of design objects that may be distributed across different platforms. These design objects need to communicate data and information among each other. For efficient communication among design objects a common communication protocol need to be defined. This paper presents the elements of a communication protocol that uses a mediator agent to facilitate communication among design objects. This protocol is termed the Mediative Communication Protocol (MCP). The protocol uses certain design communication performatives and the semantics of an Agent Communication language (ACL) mainly the Knowledge and Query Manipulation Language (KQML) to implement its steps. Details of a Mediator Agent, that will facilitate the communication among design objects, is presented. The Unified Modeling Language (UML) is used to present the Meditative protocol and show how the mediator agent can be use to execute the steps of the meditative communication protocol. An example from structural engineering application is presented to demonstrate and validate the protocol. It is concluded that the meditative protocol is a viable protocol to facilitate object-to-object communication and also has potential to facilitate communication among the different project participants at the higher level of integrated structural engineering systems.},
  subject      = {Mehragentensystem},
  language  = {en}
}
@article{AlbertFreischladPullmann2004,
  author    = {Albert, Andrej and Freischlad, Mark and Pullmann, Torben},
  title     = {Acquisition of Conceptual Design Knowledge in Structural Engineering},
  doi       = {10.25643/bauhaus-universitaet.215},
  url       = {http://nbn-resolving.de/urn:nbn:de:gbv:wim2-20111215-2154},
  year      = {2004},
  abstract  = {Expert systems integrating fuzzy reasoning techniques represent a powerful tool to support practicing engineers during the early stages of structural design. In this context fuzzy models have proved themselves to be very suitable for the representation of complex design knowledge. However their definition is a laborious task. This paper introduces an approach for the design and the optimization of fuzzy systems based upon Genetic Programming. To keep the emerging fuzzy systems transparent a new framework for the definition of linguistic variables is also introduced.},
  subject      = {Mehragentensystem},
  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{AsayamaMae2004,
  author    = {Asayama, Shuichi and Mae, Toshifumi},
  title     = {Fractal Truss Structure and Automatic Form Generation Using Iterated Function System},
  doi       = {10.25643/bauhaus-universitaet.104},
  url       = {http://nbn-resolving.de/urn:nbn:de:gbv:wim2-20111215-1046},
  year      = {2004},
  abstract  = {This paper describes a couple of new truss structures based on fractal geometry. One is the famous Sierpinski Gasket and another is a fractal triangle derived by means of applying a process forming leaves of a cedar tree using M. F. Barnsley's contraction mapping theory. Therefore a pair of x-y coordinates of an arbitrary nodal point on the structures are generated easily if IFS(Iterated Function System) codes and a scale of them are specified. Structural members are defined similarly. Thus data for frame analysis can be generated automatically, which is significant if the objective structure has complex configuration. Next analytical results under vertical and wind loadings in Japanese Building Code are shown. Here members are assumed to be timber and to have cross section of 15cm×15cm. Finally authors conclude that geometrically new truss structures were developed and automatic data generation for frame analysis was attained using IFS. Analytical results show they contribute to saving material when compared it with King-post truss.},
  subject      = {Konzipieren <Technik>},
  language  = {en}
}
@article{AzizAnumbaMiles2004,
  author    = {Aziz, Zeeshan and Anumba, Chimay and Miles, John},
  title     = {Towards a Semantic Grid Computing Platform for Disaster Management in Built Environment},
  doi       = {10.25643/bauhaus-universitaet.208},
  url       = {http://nbn-resolving.de/urn:nbn:de:gbv:wim2-20111215-2084},
  year      = {2004},
  abstract  = {Current disaster management procedures rely primarily on heuristics which result in their strategies being very cautious and sub-optimum in terms of saving life, minimising damage and returning the building to its normal function. Also effective disaster management demands decentralized, dynamic, flexible, short term and across domain resource sharing, which is not well supported by existing distributing computing infrastructres. The paper proposes a conceptual framework for emergency management in the built environment, using Semantic Grid as an integrating platform for different technologies. The framework supports a distributed network of specialists in built environment, including structural engineers, building technologists, decision analysts etc. It brings together the necessary technology threads, including the Semantic Web (to provide a framework for shared definitions of terms, resources and relationships), Web Services (to provide dynamic discovery and integration) and Grid Computing (for enhanced computational power, high speed access, collaboration and security control) to support rapid formation of virtual teams for disaster management. The proposed framework also make an extensive use of modelling and simulation (both numerical and using visualisations), data mining (to find resources in legacy data sets) and visualisation. It also include a variety of hardware instruments with access to real time data. Furthermore the whole framework is centred on collaborative working by the virtual team. Although focus of this paper is on disaster management, many aspects of the discussed Grid and Visualisation technologies will be useful for any other forms of collaboration. Conclusions are drawn about the possible future impact on the built environment.},
  subject      = {Mehragentensystem},
  language  = {en}
}
@inproceedings{BaitschHartmann2004,
  author    = {Baitsch, Matthias and Hartmann, Dietrich},
  title     = {Object Oriented Finite Element Analysis for Structural Optimization using p-Elements},
  doi       = {10.25643/bauhaus-universitaet.108},
  url       = {http://nbn-resolving.de/urn:nbn:de:gbv:wim2-20111215-1089},
  year      = {2004},
  abstract  = {The optimization of continuous structures requires careful attention to discretization errors. Compared to ordinary low order formulation (h-elements) in conjunction with an adaptive mesh refinement in each optimization step, the use of high order finite elements (so called p-elements) has several advantages. However, compared to the h-method a higher order finite element analysis program poses higher demands from a software engineering point of view. In this article the basics of an object oriented higher order finite element system especially tailored to the use in structural optimization is presented. Besides the design of the system, aspects related to the employed implementation language Java are discussed.},
  subject      = {Konzipieren <Technik>},
  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}
}
@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{BiltchoukPahl2004,
  author    = {Biltchouk, Irina and Pahl, Peter Jan},
  title     = {Interaction of Data Bases and Graphical Interfaces in Civil Engineering},
  doi       = {10.25643/bauhaus-universitaet.163},
  url       = {http://nbn-resolving.de/urn:nbn:de:gbv:wim2-20111215-1636},
  year      = {2004},
  abstract  = {Applications for civil engineering tasks usually contain graphical user interfaces for the engineering processes. Persistent objects of the applications are stored to data bases. The influence of the interaction between a graphical user interface and a data base for the development of an civil engineering application is investigated in this paper. A graphic application for the linear elastic analysis of plane frames, which was previously developed with standard tools of the Java platform, is compared to a redesigned implementation using a generalized data base for persistent objects. The investigation leads to the following results : - A strict distinction between persistent and transient objects influences the class structure of an application, in particular the class structure of a graphical user interface. - The structure of an application depends on the logic for updating of references to persistent and transient graphical objects after an application is read from a file. - The complexity of the reference management can usually be handled better by just in time referencing associated with String - identifiers rather than by automated referencing associated with Name - identifiers.},
  subject      = {Baubetrieb},
  language  = {en}
}
@inproceedings{BothKohlerGessmann2004,
  author    = {Both, Petra von and Kohler, Niklaus and Gessmann, Robin},
  title     = {A virtual life cycle structured platform for building applications},
  doi       = {10.25643/bauhaus-universitaet.121},
  url       = {http://nbn-resolving.de/urn:nbn:de:gbv:wim2-20111215-1219},
  year      = {2004},
  abstract  = {The development of a life cycle structured cooperation platform is described, which is based on an integrated process and goal-oriented project model. Furthermore the structure of a life cycle oriented object structure model and its implementation in the platform are documented. The complete conceptual model is described, which represents the basis of a lifecycle -oriented structuring of the planning object and supports the thematic classification of the object and project management data.},
  subject      = {Bauwerk},
  language  = {en}
}