@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}
}
@inproceedings{O'BrienDansoAmoakoIssa2004,
  author    = {O'Brien, William and Danso-Amoako, Mark and Issa, Raja},
  title     = {A Case Study of IFC and CIS/2 Support for Steel Supply Chain Processes},
  doi       = {10.25643/bauhaus-universitaet.119},
  url       = {http://nbn-resolving.de/urn:nbn:de:gbv:wim2-20111215-1195},
  year      = {2004},
  abstract  = {The evolution of data exchange and integration standards within the Architectural, Engineering and Construction industry is gradually making the long-held vision of computer-integratedconstruction a reality. The Industry Foundations Classes and CIMSteel Integration Standards are two such standards that have seen remarkable successes over the past few years. Despite successes, these standards support the exchange of product data more than they do process data, especially those processes that are loosely coupled with product models. This paper reports on on-going research to evaluate the adequacy of the IFC and CIS/2 standards to support process modeling in the steel supply chain. Some initial recommendations are made regarding enhancements to the data standards to better support processes.},
  subject      = {Bauwerk},
  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{TsutsumiHashimoto2004,
  author    = {Tsutsumi, Kazutoshi and Hashimoto, Hiromi},
  title     = {A Development of the Building Kansei Information Retrieval System},
  doi       = {10.25643/bauhaus-universitaet.188},
  url       = {http://nbn-resolving.de/urn:nbn:de:gbv:wim2-20111215-1884},
  year      = {2004},
  abstract  = {The purpose of this research is to develop the method to retrieve a building name from the impression of the building. First, the images of the building are registered as database by the questionnaire. Next, the images of the objective building are compared with the degree of matching in image databases, and the building with high synthetic matching degree is retrieved. This system could get a good retrieval result. Moreover, image processing was done, and image databases are trained by neural network from the amount of characteristics of the image, and the retrieval system by image processing was examined.},
  subject      = {Mehragentensystem},
  language  = {en}
}
@inproceedings{FreundtBeucke2004,
  author    = {Freundt, Martin and Beucke, Karl},
  title     = {A flexible model for scheduling building processes based on graph theory and fuzzy numbers},
  doi       = {10.25643/bauhaus-universitaet.158},
  url       = {http://nbn-resolving.de/urn:nbn:de:gbv:wim2-20111215-1587},
  year      = {2004},
  abstract  = {The methods currently used for scheduling building processes have some major advantages as well as disadvantages. The main advantages are the arrangement of the tasks of a project in a clear, easily readable form and the calculation of valuable information like critical paths. The main disadvantage on the other hand is the inflexibility of the model caused by the modeling paradigms. Small changes of the modeled information strongly influence the whole model and lead to the need to change many more details in the plan. In this article an approach is introduced allowing the creation of more flexible schedules. It aims towards a more robust model that lowers the need to change more than a few information while being able to calculate the important propositions of the known models and leading to further valuable conclusions.},
  subject      = {Baubetrieb},
  language  = {en}
}
@inproceedings{SchapkeScherer2004,
  author    = {Schapke, Sven-Eric and Scherer, Raimar J.},
  title     = {A Four Layer Bayesian Network for Product Model Based Information Mining},
  doi       = {10.25643/bauhaus-universitaet.120},
  url       = {http://nbn-resolving.de/urn:nbn:de:gbv:wim2-20111215-1207},
  year      = {2004},
  abstract  = {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.},
  subject      = {Bauwerk},
  language  = {en}
}
@inproceedings{BedardMoraRivard2004,
  author    = {B{\´e}dard, Claude and Mora, Rodrigo and Rivard, Hugues},
  title     = {A Framework for Computer-Aided Conceptual Design of Building Structures},
  doi       = {10.25643/bauhaus-universitaet.101},
  url       = {http://nbn-resolving.de/urn:nbn:de:gbv:wim2-20111215-1018},
  year      = {2004},
  abstract  = {This paper describes a framework for computer-aided conceptual design of building structures that results from building architectural considerations. The central task that is carried out during conceptual design is the synthesis of the structural system. This paper proposes a methodology for the synthesis of structural solutions. Given the nature of architectural constraints, user-model interactivity is devised as the most suitable computer methodology for driving the structural synthesis process. Taking advantage of the hierarchical organization of the structural system, this research proposes a top-down approach for structural synthesis. Through hierarchical refinement, the approach lends itself to the synthesis of global and local structural solutions. The components required for implementing the proposed methodology are briefly described. The main components have been incorporated in a proof-of-concept prototype that is being tested and validated with actual buildings.},
  subject      = {Konzipieren <Technik>},
  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}
}
@inproceedings{RickeltReese2004,
  author    = {Rickelt, Christian and Reese, Stefanie},
  title     = {A model adaptive and model reduction strategy combining system-theoretical methods and substructuring},
  doi       = {10.25643/bauhaus-universitaet.151},
  url       = {http://nbn-resolving.de/urn:nbn:de:gbv:wim2-20111215-1516},
  year      = {2004},
  abstract  = {This paper focuses on a new three-level discretisation strategy which enables the transition between continuum/structural (I) and structural/black box modelling (II). The transition (I) is realised by means of a model adaptive concept based on an innovative finite element technology. For transition (II) we apply the truncated balanced realisation method (TBR). The latter represents an established system theoretical model reduction technique which is here combined with a novel substructure technique. The approach provides a modular concept to facilitate the computational analysis of complex structures. The final goal is to apply the strategy to life time estimation.},
  subject      = {Adaptives System},
  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}
}
@inproceedings{TahaSherifHegger2004,
  author    = {Taha, M. M. Reda and Sherif, Alaa and Hegger, Josef},
  title     = {A nouvelle approach for predicting the shear cracking angle in RC and PC beams using artificial neural networks},
  doi       = {10.25643/bauhaus-universitaet.107},
  url       = {http://nbn-resolving.de/urn:nbn:de:gbv:wim2-20111215-1071},
  year      = {2004},
  abstract  = {The truss model for predicting shear resistance of reinforced concrete beams has usually been criticized because of its underestimation of the concrete shear strength especially for beams with low shear reinforcement. Two challengers are commonly encountered in any truss model and are responsible for its inaccurate shear strength prediction. First: the cracking angle is usually assumed empirically and second the shear contribution of the arching action is usually neglected. This research introduces a nouvelle approach, by using Artificial Neural Network (ANN) for accurately evaluating the shear cracking angle of reinforced and prestressed concrete beams. The model inputs include the beam geometry, concrete strength, the shear reinforcement ratio and the prestressing stress if any. ...},
  subject      = {Neuronales Netz},
  language  = {en}
}
@inproceedings{RueppelMeissnerGreb2004,
  author    = {Rueppel, Uwe and Meißner, Udo F. and Greb, Steffen},
  title     = {A Petri Net based Method for Distributed Process Modelling in Structural Engineering},
  doi       = {10.25643/bauhaus-universitaet.133},
  url       = {http://nbn-resolving.de/urn:nbn:de:gbv:wim2-20111215-1338},
  year      = {2004},
  abstract  = {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.},
  subject      = {Ingenieurbau},
  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}
}
@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}
}
@inproceedings{KitagawaTanakaFuruta2004,
  author    = {Kitagawa, Estuji and Tanaka, Shigenori and Furuta, Hitoshi},
  title     = {A research about the automatic construction of Web/3D model house from 2D digital pictures},
  doi       = {10.25643/bauhaus-universitaet.170},
  url       = {http://nbn-resolving.de/urn:nbn:de:gbv:wim2-20111215-1702},
  year      = {2004},
  abstract  = {In recent years, the survey is performed for repair, such as a bridge and a building built in past, spending great expense. And it is anxious for the survey technique that doesn't need cost and time more. Then, we made an idea of the technique of precise 3D model creation by 2D pictures. However, the technique of performing the improvement in accuracy of convergent photographing and automatic acquisition of corresponding points was not established. Therefore, in this research, we try to obtain a semi-automation of corresponding points acquisition from initial corresponding points and the improvement in accuracy of convergent photographing. Moreover, we applied the research to the used house of Japanese real estate, and the applicable field was selected as the high needs of the residence of 3D model. And we developed the system that everyone could create Web / 3D model house by VRML easily without requiring expensive apparatuses or expertise.},
  subject      = {Architektur},
  language  = {en}
}
@inproceedings{ChengLauLaw2004,
  author    = {Cheng, Jinxing and Lau, Gloria and Law, Kincho},
  title     = {A simulation access language and framework for project management applications},
  doi       = {10.25643/bauhaus-universitaet.156},
  url       = {http://nbn-resolving.de/urn:nbn:de:gbv:wim2-20111215-1567},
  year      = {2004},
  abstract  = {As computer programs become ever more complex, software development has shifted from focusing on programming towards focusing on integration. This paper describes a simulation access language (SimAL) that can be used to access and compose software applications over the Internet. Specifically, the framework is developed for the integration of tools for project management applications. The infrastructure allows users to specify and to use existing heterogeneous tools (e.g., Microsoft Project, Microsoft Excel, Primavera Project Planner, and AutoCAD) for simulation of project scenarios. This paper describes the components of the SimAL language and the implementation efforts required in the development of the SimAL framework. An illustration example bringing on-line weather forecasting service for project scheduling and management applications is provided to demonstrate the use of the simulation language and the infrastructure framework.},
  subject      = {Hochschulbildung},
  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}
}
@article{KoikeMorimotoImamura2004,
  author    = {Koike, Hirotaka and Morimoto, Akinori and Imamura, Maki},
  title     = {A Study on the Relationships of Residential Electricity Consumption and Automobile Energy Consumption with Urban Forms Using GIS},
  doi       = {10.25643/bauhaus-universitaet.269},
  url       = {http://nbn-resolving.de/urn:nbn:de:gbv:wim2-20111215-2690},
  year      = {2004},
  abstract  = {In this Paper, we explored the relation between the electricity consumption in residential sector and the automobile energy consumption in transportation sector in accordance with the location of city by employing Geographic Information System (GIS). We found in the study that the electricity consumption per capita has a tendency that is higher in city center and lower in suburbs in Utsunomiya city. It is also noted that there is little difference among total consumption between city center and suburbs, despite the fact that the density of electric appliances tends to increase in a small size house of city center and the amount of automobile energy consumption from residence is lower in city center than in suburbs.},
  subject      = {Geoinformationssystem},
  language  = {en}
}
@inproceedings{JianpingDongpingZhiliang2004,
  author    = {Jianping, Zhang and Dongping, Xiang and Zhiliang, Ma},
  title     = {A survey on application of information technologies in Chinese construction industry},
  doi       = {10.25643/bauhaus-universitaet.171},
  url       = {http://nbn-resolving.de/urn:nbn:de:gbv:wim2-20111215-1717},
  year      = {2004},
  abstract  = {The construction industry is a supportive industry in China. IT (information technolgy), including computer technology and communication technology, as a whole is regarded as the most important means to upgrade the construction industry so that research projects were organized by Chinese government to further the application of IT in the construction industry. This study originated from one of the projects and is aimed at grasping the general situation on the application of IT in the construction industry. A questionnaire was designed for the survey, which used stratified proportional sampling method, and was carried out under the help of a government agency. This study can not only provide sound foundation for the government to make relative policies, but also reveal references for the firms in construction industry to apply IT in their business. This paper presents the preliminary result of the survey.},
  subject      = {Architektur},
  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}
}
@inproceedings{ThurowDonath2004,
  author    = {Thurow, Torsten and Donath, Dirk},
  title     = {A vision of an adaptive geometry model for computer-assisted building surveying},
  doi       = {10.25643/bauhaus-universitaet.172},
  url       = {http://nbn-resolving.de/urn:nbn:de:gbv:wim2-20111215-1722},
  year      = {2004},
  abstract  = {The paper describes a concept for the step-by-step computer-aided capture and representation of geometric building data in the context of planning-oriented building surveying. Selected aspects of the concept have been implemented and tested as prototypes. The process of step-by-step capture and representation is determined by the order in which the user experiences the building. Only the information that the user knows (can see) or can reasonably deduce is represented. In addition approaches to the flexible combination of different measuring techniques and geometric abstractions are described which are based upon geodetic computational adjustment.},
  subject      = {Architektur},
  language  = {en}
}
@inproceedings{MenzelDittrichDomschke2004,
  author    = {Menzel, Karsten and Dittrich, J{\"o}rg and Domschke, Sven},
  title     = {About the implantation process of mobile computing in AEC},
  doi       = {10.25643/bauhaus-universitaet.110},
  url       = {http://nbn-resolving.de/urn:nbn:de:gbv:wim2-20111215-1106},
  year      = {2004},
  abstract  = {The AEC industry is conscious of the potentials arising from the usage of mobile computer systems to increase productivity by streamlining their business processes. Discussions are no longer on whether or not to use a mobile computer solution, but rather, on how it should be used. However, the implantation process of this new technology in Architecture, Engineering and Construction (AEC) and Facility Management (FM) practise is very slow and should be improved. One way to encourage and ease the usage of mobile computer systems in AEC is a more process-oriented usability and context appropriateness of mobile computer solutions. Context-sensitivity is defined as a crucial feature to be taken into account for further research in the area of Mobile Computing. Context-sensitive, mobile IT-solutions depend on two features: (1) flexible definitions of (construction) processes describing the context and (2) tools for flexible, multi-dimensional information management representing the context. It is on this premise that the authors propose the n-dimensional data management approach for the implementation of mobile computing solutions. In this paper, we analyse working scenarios in the AEC and FM sector, defining context aspects which are transformed and formalized as dimension hierarchies of the envisaged context model.},
  subject      = {Mobile Computing},
  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{KatzenbachMeissnerRueppel2004,
  author    = {Katzenbach, Rolf and Meißner, Udo F. and Rueppel, Uwe},
  title     = {Abstraction of Process Relevant Information from Geotechnical Standards and Regulations},
  doi       = {10.25643/bauhaus-universitaet.95},
  url       = {http://nbn-resolving.de/urn:nbn:de:gbv:wim2-20111028-1002},
  year      = {2004},
  abstract  = {The paper presents the abstraction of process relevant information in order to enable the workflow management based on semantic data. It is shown for three examples, how the standards define the information needed to perform a certain planning activity. Abstraction of process relevant information is discussed for different granularities of the underlying processmodel. As one possible application ProMiSE is introduced, which uses process relevant data in individual tokens in a petri-net based process-model.},
  subject      = {Geotechnik},
  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}
}
@article{LeeLee2004,
  author    = {Lee, Kangkun and Lee, Kijang},
  title     = {Additional bending moment for shear-lag phenomenon in tube structures},
  doi       = {10.25643/bauhaus-universitaet.247},
  url       = {http://nbn-resolving.de/urn:nbn:de:gbv:wim2-20111215-2472},
  year      = {2004},
  abstract  = {Framed-tube system with multiple internal tubes is analysed using an orthotropic box beam analogy approach in which each tube is individually modelled by a box beam that accounts for the flexural and shear deformations, as well as the shear-lag effects. A simple numerical modeling technique is proposed for estimating the shear-lag phenomenon in tube structures with multiple internal tubes. The proposed method idealizes the framed-tube structures with multiple internal tubes as equivalent multiple tubes, each composed of four equivalent orthotropic plate panels. The numerical analysis is based on the minimum potential energy principle in conjunction with the variational approach. The shear-lag phenomenon of such structures is studied taking into account the additional bending moments in the tubes. A detailed work is carried out through the numerical analysis of the additional bending moment. The moment factor is further introduced to identify the shear lag phenomenon along with the additional moment.},
  subject      = {Finite-Elemente-Methode},
  language  = {en}
}
@inproceedings{FruchterChao2004,
  author    = {Fruchter, Renate and Chao, Yunn Chyi},
  title     = {AEC Global Teamwork: Emergent Work Processes},
  doi       = {10.25643/bauhaus-universitaet.191},
  url       = {http://nbn-resolving.de/urn:nbn:de:gbv:wim2-20111215-1912},
  year      = {2004},
  abstract  = {This ethnographic study reports on emerging work processes and practices observed in the AEC (Architecture/Engineering/Construction) Global Teamwork program, i.e., what people experience when interacting with and through collaboration technologies, why people practice in the way they do, how the practice fits into the environment and changes the work patterns. It presents the experience of two high-performance typical but extreme AEC teamwork cases adopting and adapting to collaboration technologies and how these technologies in practice impact their work processes. The findings illustrate the importance of collaboration technologies in cross-disciplinary, global teamwork. Observations indicate that high performance teams that use the collaboration technologies effectively exhibit collaboration readiness at an early stage and manage to define a "third way" to meet the demands of the cross-disciplinary, multi cultural and geographically distributed AEC workspace. The observations and implications represent the blueprint for yearly innovations and improvements to the design of the AEC Global Teamwork program.},
  subject      = {Hochschulbildung},
  language  = {en}
}
@inproceedings{Olivier2004,
  author    = {Olivier, A. H.},
  title     = {An application-centred framework for distributed engineering applications},
  doi       = {10.25643/bauhaus-universitaet.135},
  url       = {http://nbn-resolving.de/urn:nbn:de:gbv:wim2-20111215-1353},
  year      = {2004},
  abstract  = {The conceptual structure of an application that can support the structural analysis task in a distributed collaboratory is described in (van Rooyen and Olivier 2004). The application described there has a standalone component for executing the finite element method on a local workstation in the absence of network access. This application is comparable to current, local workstation based finite element packages. However, it differs fundamentally from standard packages since the application itself, and its objects, are adapted to support distributed execution of the analysis task. Basic aspects of an object-oriented framework for the development of applications which can be used in similar distributed collaboratories are described in this paper. An important feature of this framework is its application-centred design. This means that an application can contain any number of engineering models, where the models are formed by the collection of objects according to semantic views within the application. This is achieved through very flexible classes Application and Model, which are described in detail. The advantages of the application-centred design approach is demonstrated with reference to the design of steel structures, where the finite element analysis model, member design model and connection design model interact to provide the required functionality.},
  subject      = {Ingenieurbau},
  language  = {en}
}
@inproceedings{GordonAkinciGarrett2004,
  author    = {Gordon, Chris and Akinci, Burcu and Garrett, James H.},
  title     = {An Approach for Planning Sensor-Based Inspection of the Built Environment},
  doi       = {10.25643/bauhaus-universitaet.150},
  url       = {http://nbn-resolving.de/urn:nbn:de:gbv:wim2-20111215-1500},
  year      = {2004},
  abstract  = {The promise of lower costs for sensors that can be used for construction inspection means that inspectors will continue to have new choices to consider in creating inspection plans. However, these emerging inspection methods can require different activities, resources, and decisions such that it can be difficult to compare the emerging methods with other methods that satisfy the same inspection needs. Furthermore, the context in which inspection is performed can significantly influence how well certain inspection methods are suited for a given set of goals for inspection. Context information, such as weather, security, and the regulatory environment, can be used to understand what information about a component should be collected and how an inspection should be performed. The research described in this paper is aimed at developing an approach for comparing and selecting inspection plans. This approach consists of (1) refinement of given goals for inspection, if necessary, in order to address any additional information needs due to a given context and in order to reach a level of detail that can be addressed by an inspection activity; (2) development of constraints to describe how an inspection should be achieved; (3) matching of goals to available inspection methods, and generation of activities and resource plans in order to address the goals; and (4) selection of an inspection plan from among the possible plans that have been identified. The authors illustrate this approach with observations made at a local construction site.},
  subject      = {Monitor{\"u}berwachung},
  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}
}
@inproceedings{MaWongYang2004,
  author    = {Ma, Zhiliang and Wong, K. D. and Yang, Jun},
  title     = {An Approach to Utilizing Exchanged Documents in Construction Projects Based on Data Warehouse Technology},
  doi       = {10.25643/bauhaus-universitaet.122},
  url       = {http://nbn-resolving.de/urn:nbn:de:gbv:wim2-20111215-1227},
  year      = {2004},
  abstract  = {There are many construction projects in China and mass documents are exchanged among the multi-party, including the owner, the contractor and the engineer in the projects. Based on previous studies, an approach to the utilization of the exchanged documents is established by using data warehouse technology and a prototype system called EXPLYZER is developed. The approach and the prototype system are verified through their application in a construction project. It is concluded that the approach can support the decision-making in project management.},
  subject      = {Bauwerk},
  language  = {en}
}
@inproceedings{O'BrienElMashaleh2004,
  author    = {O'Brien, William and El-Mashaleh, Mohammad},
  title     = {An Empirical Study Relating Construction Firm Performance and IT Utilization},
  doi       = {10.25643/bauhaus-universitaet.173},
  url       = {http://nbn-resolving.de/urn:nbn:de:gbv:wim2-20111215-1739},
  year      = {2004},
  abstract  = {This paper examines the impact of information technology (IT) utilization on construction firm performance. Based on empirical data collected from 74 US construction firms, the analyses provide evidence that IT has a positive impact on overall firm performance, schedule performance, and cost performance. Firm performance is a composite score of several metrics of performance: schedule performance, cost performance, customer satisfaction, safety performance, and profit. No relationship is found between IT utilization and customer satisfaction, safety, or profit, although this may be due to limitations of the study given strong correlations between IT utilization and cost and schedule performnance. The empirical evidence of positive association between performance and IT use provided by this research is significant to both construction practice and research literature. This evidence should encourage firms to adopt and invest in IT tools.},
  subject      = {Architektur},
  language  = {en}
}
@article{YabukiYoshimura2004,
  author    = {Yabuki, Nobuyoshi and Yoshimura, Yutaka},
  title     = {An Evaluation System for Steel Structures of Hydroelectric Power Stations based on Fault Tree Analysis and Performance Maps},
  doi       = {10.25643/bauhaus-universitaet.256},
  url       = {http://nbn-resolving.de/urn:nbn:de:gbv:wim2-20111215-2564},
  year      = {2004},
  abstract  = {This paper presents an evaluation system for steel structures of hydroelectric power stations, including hydraulic gates and penstocks, based on Fault Tree Analyasis (FTA) and performance maps. This system consists of fault tree diagrams of FTA, performance maps, design and analysis systems, and engineerin databases. These four modules are integrated by appropriate hyperlinks so that the user of this system can use it easily and seamlessly. A well developed system was applied to some illustrative example cases, and they showed that the developed methodology and system worked well and the users found the system useful and effective for their maintenance tasks at powerstations.},
  subject      = {Wissensmanagement},
  language  = {en}
}
@inproceedings{LauLaw2004,
  author    = {Lau, Gloria and Law, Kincho},
  title     = {An Information Infrastructure for Comparing Accessibility Regulations and Related Information from Multiple Sources},
  doi       = {10.25643/bauhaus-universitaet.192},
  url       = {http://nbn-resolving.de/urn:nbn:de:gbv:wim2-20111215-1922},
  year      = {2004},
  abstract  = {This paper describes a research project that addresses the difficulties in dealing with regulatory documents such as national and regional codes. These documents tend to be voluminous, heavily cross-referenced, possibly ambiguous and even conflicting at times. There are often multiple documents that need to be consulted and satisfied; however it is a difficult task to locate all of the relevant provisions. In addition, sections dealing with the same or similar conceptual ideas sometimes lay down conflicting requirements. We propose a framework for regulation representation, analysis and comparison with emphasis on the extraction of similarities between provisions. We focus on accessibility regulations, whose intent is to provide the same or equivalent access to a building and its facilities for disabled persons. An XML regulatory repository is developed to extract structural as well as non-structural features from government regulations to help user understanding and computational analysis. A similarity analysis is performed between different sources of regulations. In order to achieve a better comparison between provisions, we employ a combination of feature matching and structural analysis. Results are shown on comparisons between American and European codes, as well as on the domain of electronic-rulemaking.},
  subject      = {Hochschulbildung},
  language  = {en}
}
@inproceedings{RaueWeitzmann2004,
  author    = {Raue, Erich and Weitzmann, R{\"u}diger},
  title     = {Analysis and Design of Hybrid Structures using Optimization Strategies},
  doi       = {10.25643/bauhaus-universitaet.102},
  url       = {http://nbn-resolving.de/urn:nbn:de:gbv:wim2-20111215-1023},
  year      = {2004},
  abstract  = {The paper gives a general overview and concerns with a specified set of computer-aided analysis modules for hybrid structures loaded by extreme excitations. All problems are solved by methods of linear, quadratic or nonlinear mathematical optimization, that leads to very effective and economic design solutions. All approaches are derived from general optimization problem that can be easily altered to conform to specific design tasks. Some advantages and possibilities of hybrid structural modeling (single or mixed model-supported) are discussed. The methods will be illustrated by an example structure and optimization schemes.},
  subject      = {Konzipieren <Technik>},
  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{ChangChangHuang2004,
  author    = {Chang, Chihyuan and Chang, Yuanchu and Huang, Shyhmeng},
  title     = {Application of a Agent Mechanism to the Small-scale Maintenance of School Buildings},
  doi       = {10.25643/bauhaus-universitaet.216},
  url       = {http://nbn-resolving.de/urn:nbn:de:gbv:wim2-20111215-2165},
  year      = {2004},
  abstract  = {This paper presents an agent-based software, Virtual Administrator System (VAS) for the smallscale maintenance of school buildings. VAS is capable of handling a heavy load of routine, lowtech maintenance jobs. It assigns a different priority to each job application according to its significance and urgency, and automatically adjusts schedules for maintenance engineers when on-site supervision is needed. The system can help ease off the burden of routine small-scale maintenance work, making it more cost-effective and efficient in the overall management of school building maintenance. VAS posts jobs on the Web in a multi-media format and classified all applications into four categories: the on-call maintenance contract, the term maintenance contract, the guaranty maintenance contract, and the regular maintenance contract. It then estimates their urgency level and passes the information to maintenance engineers who will decide whether on-site inspection is needed. Based on the engineers' feedback, VAS automatically implements the scheduling for inspection as well as sends out real-time or batch notifications to contractors. All these activities are recorded in a database to allow continuous research and data mining and the analysis and diagnosis of specific jobs for followup maintenance plans.},
  subject      = {Mehragentensystem},
  language  = {en}
}
@article{MostEckardt2004,
  author    = {Most, Thomas and Eckardt, Stefan},
  title     = {Application of a hybrid parallelization technique to accelerate the numerical simulation of nonlinear mechanical problems},
  doi       = {10.25643/bauhaus-universitaet.259},
  url       = {http://nbn-resolving.de/urn:nbn:de:gbv:wim2-20111215-2599},
  year      = {2004},
  abstract  = {This paper presents the combination of two different parallelization environments, OpenMP and MPI, in one numerical simulation tool. The computation of the system matrices and vectors is parallelized with OpenMP and the solution of the system of equations is done with the MPIbased solver MUMPS. The efficiency of both algorithms is shown on several linear and nonlinear examples using the Finite Element Method and a meshless discretization technique.},
  subject      = {Framework <Informatik>},
  language  = {en}
}
@inproceedings{JianpingTianyiQiping2004,
  author    = {Jianping, Zhang and Tianyi, Ma and Qiping, Shen},
  title     = {Application of Data Warehouse and Data Mining in Construction Management},
  doi       = {10.25643/bauhaus-universitaet.124},
  url       = {http://nbn-resolving.de/urn:nbn:de:gbv:wim2-20111215-1247},
  year      = {2004},
  abstract  = {All construction project are constrained by their schedules, budgets and specifications, and safety and environmental regulations. These constraints made construction management more complex and difficult. At the same time, many historical data that can support the decisions in the future are kept in construction enterprises,. To use the historical data effectively and efficiently, it is essential to apply the data warehouse and data mining technologies. This paper introduces a research which aims to develop a data warehouse system according to the requirements of construction enterprises and use data mining technology to learn useful information and knowledge from the data warehouse system. The design, the development and the application of this system are detailedly introduced in this paper.},
  subject      = {Bauwerk},
  language  = {en}
}
@article{MelnikovSemenov2004,
  author    = {Melnikov, B. E. and Semenov, Artem},
  title     = {Application of Multimodel Method of Elasto-Plastic Analysis for the Multilevel Computation of Structures},
  doi       = {10.25643/bauhaus-universitaet.248},
  url       = {http://nbn-resolving.de/urn:nbn:de:gbv:wim2-20111215-2487},
  year      = {2004},
  abstract  = {Creation of hierarchical sequence of the plastic and viscoplastic models according to different levels of structure approximations is considered. Developed strategy of multimodel analysis, which consists of creation of the inelastic models library, determination of selection criteria system and caring out of multivariant sequential clarifying computations, is described. Application of the multimodel approach in numerical computations has demonstrated possibility of reliable prediction of stress-strain response under wide variety of combined nonproportional loading.},
  subject      = {Finite-Elemente-Methode},
  language  = {en}
}
@misc{Bock2004,
  type      = {Master Thesis},
  author    = {Bock, Sebastian},
  title     = {Approximation mit polynomialen L{\"o}sungen der Lam{\´e}schen Differentialgleichung},
  doi       = {10.25643/bauhaus-universitaet.640},
  url       = {http://nbn-resolving.de/urn:nbn:de:gbv:wim2-20111215-6409},
  school      = {Bauhaus-Universit{\"a}t Weimar},
  year      = {2004},
  abstract  = {Grundidee der Arbeit ist es, L{\"o}sungen von Randwertaufgaben durch Linearkombinationen exakter klassischer L{\"o}sungen der Differentialgleichung zu approximieren. Die freien Koeffizienten werden dabei durch die Bestimmung der besten Approximation der Randwerte berechnet. Als Basis der Approximation werden vollst{\"a}ndige orthogonale und nahezu orthogonale Funktionensysteme verwendet. Anhand ausgew{\"a}hlter Beispiele mit Randvorgaben unterschiedlicher Glattheit wird am Beispiel der Kugel die prinzipielle Anwendbarkeit der Methode getestet und hinsichtlich der Entwicklung des Fehlers der N{\"a}herungsl{\"o}sung, der Stabilit{\"a}t des Verfahrens und des numerischen Aufwandes untersucht. Die erhaltenen Resultate geben einen begr{\"u}ndeten Anlass, die Anwendung der Methode als Bestandteil einer hybriden analytisch-numerischen Methode, insbesondere der Verkn{\"u}pfung mit der FEM, weiterzuverfolgen.},
  subject      = {Legendre-Funktion},
  language  = {de}
}
@phdthesis{Nguyen2004,
  author    = {Nguyen, Thu Huong},
  title     = {Architektonische Grundlage f{\"u}r die Entwicklung von barrierefreien berufsbildenden Schulen f{\"u}r die Integration von Seh- und Mobilit{\"a}tsbehinderten sowie nichtbehinderten Menschen in Vietnam},
  doi       = {10.25643/bauhaus-universitaet.652},
  url       = {http://nbn-resolving.de/urn:nbn:de:gbv:wim2-20050707-6857},
  school      = {Bauhaus-Universit{\"a}t Weimar},
  year      = {2004},
  abstract  = {Im Gegensatz zu Industriel{\"a}ndern wird das barrierefreie und behindertengerechte Planen und Bauen von {\"o}ffentlichen Geb{\"a}uden in Entwicklungsl{\"a}ndern aus wirtschaftlichen und sozialen Gr{\"u}nden nur ungen{\"u}gend ber{\"u}cksichtigt und realisiert. Die Analyse von international vorhandenen Normen und Richtlinien zeigte, dass in Vietnam die Integration behindertengerechter Konzepte in Bauplanungen erst seit dem Jahr 2002 stattfindet, wohingegen diese in China bereits seit den 80er Jahren und in den Industrienationen wie Deutschland und Amerika sogar schon seit drei Jahrzehnten Anwendung findet. Die ungen{\"u}gende Ber{\"u}cksichtigung behindertengerechter Baukonzepte in {\"o}ffentlichen Einrichtungen, so auch vor allem in Berufsschulen bewirkt eine drastische Reduzierung des Ausbildungsplatzangebotes und eine resultierende Perspektivlosigkeit f{\"u}r behinderte Menschen. Durch die schnelle Errichtung barrierefreier, behindertengerechter Ausbildungseinrichtungen sollen sich die Chancen auf einen Ausbildungsplatz f{\"u}r behinderte Vietnamesen deutlich verbessern. Mit dem Erhalt eines Ausbildungsplatzes wird diesen Menschen nicht nur eine Integration in die Gesellschaft sondern langfristig gesehen auch finanzielle Selbst{\"a}ndigkeit und somit Unabh{\"a}ngigkeit von der Familie erm{\"o}glicht. Als Grundlage des angestrebten Umwandlungsprozesses von der herk{\"o}mmlichen barrierebelasteten Bauplanung zur Ber{\"u}cksichtigung von behinderten Menschen durch behindertengerechte Planungskonzepte wurden Bauzeit, Bauumfang und Baukosten eingehend analysiert. Dieser vergleichenden Betrachtung der Bauplanungen entwuchsen zwei neue barrierefreie Berufschultypen. Der neue Berufsschultyp 1 - Der Dezentralisierungstyp zeichnet sich durch einen geringf{\"u}gigen Bauumfang und durch seine einfache Baukonstruktion aus und erm{\"o}glicht somit eine schnelle Reaktion auf den gravierenden Ausbildungsplatzmangel f{\"u}r behinderte Menschen. Dieser kosteng{\"u}nstige Berufsschultyp wurde entwickelt, um sehr kurzfristig eine schnelle Erh{\"o}hung des Ausbildungsplatzangebotes f{\"u}r behinderte Menschen zu schaffen. Siedlungs- und Wohngebiete bzw. D{\"o}rfer eignen sich am besten als Standort f{\"u}r den Berufsschultyp 1. Das urspr{\"u}ngliche Wohnumfeld bliebe den behinderten Sch{\"u}lern erhalten und damit einhergehend auch die seelische Unterst{\"u}tzung durch deren Familien. Der familiennahe Standort der Berufsschule w{\"u}rde somit sowohl den Lehrern als auch den Sch{\"u}lern eine große seelische Last abnehmen. Des Weiteren ließe sich eine Berufsschule vom Typ 1 schnellstens errichten, so dass die Ausbildung der behinderten und nicht behinderten Sch{\"u}ler sofort aufgenommen werden k{\"o}nnte. Im Zuge der Entwicklung des neuen Berufsschultyps 2 - Dem Zentralisierungstyp - wurden internationale Standards angestrebt. Dieser Berufsschultyp bietet eine umfangreichere Flexibilit{\"a}t in seiner Nutzungsart, ein umfassenderes Angebot an Ausbildungsg{\"a}ngen und ein weitaus gr{\"o}ßeres Feld der Integration. Der Berufsschultyp 2 ist ein komplexer Bau, mit einem gr{\"o}ßeren Bauumfang als Berufsschultyp 1. Bei der Errichtung dieser Berufsschultypen ist mit einer langfristigen Planungs- und Bauzeit zu rechnen. Der Stadtrand wird als der optimale Standort zur Errichtung der Berufsschule vom Typ 2 angesehen. Von dort aus ließen sich die {\"o}ffentlichen Service der Stadt effizient nutzen. Als Bewertungsgrundlage f{\"u}r eine optimale Entwicklung der beiden neuen Berufsschultypen dienen Basisdaten aus umfassenden Analysen {\"u}ber verschiedenste Betrachtungsebenen. Unter Nutzung der in Deutschland und USA bestehenden gesetzlichen Grundlagen sollen barrierefreie Planungsempfehlungen, gezielt f{\"u}r die Errichtung behindertengerechter berufsausbildender Schulen in Vietnam, abgleitet werden, um ein gemeinsames Lernen von seh- und mobilit{\"a}tsbehinderten sowie von nicht behinderten Menschen zu erm{\"o}glichen. Bei den Planungsempfehlungen finden nicht nur die unterschiedlichen menschlichen K{\"o}rpergr{\"o}ßen der verschiedenen Bev{\"o}lkerungsgruppen sondern auch die unterschiedliche Lebensweise der Vietnamesen sowie die Klimabedingungen in Vietnam Ber{\"u}cksichtigung. Bei der Planung von behindertengerechten Ausbildungs- und Schuleinrichtungen ist es wichtig, die K{\"o}rpergr{\"o}ße der Menschen des jeweiligen Landes zu ber{\"u}cksichtigen. Als Orientierungsmaß f{\"u}r die K{\"o}rpergr{\"o}ße vietnamesischer Menschen wurde ein Richtfaktor definiert und eingesetzt. Anhand der o.g. Richtfaktorgr{\"o}ßen wurden detaillierte Planungsempfehlungen f{\"u}r barrierefreies Lernen und Wohnen herausgearbeitet.},
  subject      = {Berufsschule},
  language  = {de}
}
@misc{Schweigel2004,
  type      = {Master Thesis},
  author    = {Schweigel, Stefan},
  title     = {Aufnahme des Baufortschritts in verteilter Umgebung},
  doi       = {10.25643/bauhaus-universitaet.153},
  url       = {http://nbn-resolving.de/urn:nbn:de:gbv:wim2-20111215-1534},
  school      = {Bauhaus-Universit{\"a}t Weimar},
  year      = {2004},
  abstract  = {Als Folge des hohen Termindrucks w{\"a}hrend des Bauablaufes, ist es besonders wichtig den Fortschritt eines Bauvorhabens zeitnah zu {\"u}berwachen. Auf Großbaustellen kann die effektive Kontrolle nicht mehr ohne technische Hilfsmittel durchgef{\"u}hrt werden. Die Arbeit stellt verschiedene Szenarien f{\"u}r die verteilte Fortschrittserfassung vor und untersucht welche Anforderungen an ein System f{\"u}r die verteilte Erfassung gestellt werden. Dazu wird zuerst das bestehende CVS-System analysiert, um anschließend daraus ein Konzept f{\"u}r die Versionierung von Objekten und den automatischen Abgleich von Objektversionen zu entwickeln. Sp{\"a}ter wird gezeigt, wie dieses Konzept mit Hilfe von C\# und dem Microsoft®-.NET-Framework umgesetzt werden kann.},
  subject      = {Computer Supported Cooperative Work},
  language  = {de}
}
@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}
}
@article{Erlemann2004,
  author    = {Erlemann, Kai},
  title     = {BABSIM - An object-oriented software framework for microscopic simulation of freeway traffic},
  doi       = {10.25643/bauhaus-universitaet.260},
  url       = {http://nbn-resolving.de/urn:nbn:de:gbv:wim2-20111215-2601},
  year      = {2004},
  abstract  = {A wide variety of behavioural models exist in microscopic traffic simulation. Commercial programms often use closed-source policies and are confined to their respective simulation platforms. Open-source approaches mainly focus on distinctive, highly specialized traffic situations. In the scope of this paper, an open-source framework for developing modular, objectoriented simulation systems is presented, capable of simultaneously accommodating different driving models and enabling the user to modify and extend the catalogue of driving behaviours. The existing driving behaviours and the computational implementation of the simulation are being described.},
  subject      = {Framework <Informatik>},
  language  = {en}
}
@phdthesis{Adami2004,
  author    = {Adami, Kay},
  title     = {Beitrag zur physikalisch nichtlinearen Analyse von Aussteifungssystemen mit Methoden der mathematischen Optimierung},
  doi       = {10.25643/bauhaus-universitaet.78},
  url       = {http://nbn-resolving.de/urn:nbn:de:gbv:wim2-20040329-812},
  school      = {Bauhaus-Universit{\"a}t Weimar},
  year      = {2004},
  abstract  = {Das Ziel der vorliegenden Arbeit besteht in der Entwicklung einer Strategie zur physikalisch nichtlinearen Analyse von Aussteifungssystemen. Der Anwendungsschwerpunkt umfasst neben dem traditionellen Aufgabenumfang zur Analyse neu zu errichtender Tragwerke gleichzeitig auch Planungsaufgaben, die mit Umbau- und Sanierungsmaßnahmen verbunden sind. Ver{\"a}nderungen, die sich w{\"a}hrend der Nutzungsgeschichte oder im Revitalisierungsprozess ergeben, werden in den Berechnungsmodellen ber{\"u}cksichtigt. In vielen F{\"a}llen ist es aus planerischer Sicht zweckm{\"a}ßig, die Nichtlinearit{\"a}t des Materialverhaltens zur Erschließung von Tragreserven in den normativen Nachweiskonzepten mit einzubeziehen. Der damit verbundene numerische Aufwand wird durch die Verwendung separater Modelle zur Erfassung des Querschnitts- und des Systemtragverhaltens begrenzt, ohne die Komplexit{\"a}t der Aufgabenstellung zu reduzieren. Aus detaillierten Querschnittsuntersuchungen der Tragw{\"a}nde werden integrale Materialbeziehungen abgeleitet, welche die Grundlage f{\"u}r die nichtlineare Tragwerksanalyse darstellen. Die Modellbildung gegliederter Aussteifungsw{\"a}nde basiert auf deren Zerlegung in ebene finite Stabsegmente, die sich durch die Diskretisierung in L{\"a}ngs- und in Querrichtung ergeben. Zus{\"a}tzlich zu den an den Stabenden angreifenden Normalkr{\"a}ften, Querkr{\"a}ften und Biegemomenten werden an den Elementl{\"a}ngsr{\"a}ndern Schubbeanspruchungen erfasst. Die physikalische Nichtlinearit{\"a}t wird durch die Einbeziehung integraler Materialbeziehungen an den Segmentr{\"a}ndern ber{\"u}cksichtigt. Die numerische Umsetzung erfolgt mit Methoden der mathematischen Optimierung. Die Leistungsf{\"a}higkeit der Berechnungsstrategie wird exemplarisch anhand von Untersuchungen an Aussteifungssystemen in Großtafelbauweise nachgewiesen.},
  subject      = {Stahlbeton},
  language  = {de}
}
@phdthesis{Wuttke2004,
  author    = {Wuttke, Frank},
  title     = {Beitrag zur Standortidentifizierung mit Oberfl{\"a}chenwellen},
  doi       = {10.25643/bauhaus-universitaet.653},
  url       = {http://nbn-resolving.de/urn:nbn:de:gbv:wim2-20050708-6874},
  school      = {Bauhaus-Universit{\"a}t Weimar},
  year      = {2004},
  abstract  = {In der Dissertation wurden unterschiedliche Methoden zur Standortidentifizierung mit Oberfl{\"a}chenwellen analysiert. Es wurden neue Methoden zur Parameteridentifikation unter Nutzung von Oberfl{\"a}chenwellen vorgeschlagen. Die Ziele der Arbeit k{\"o}nnen wie folgt definiert werden: a) Die Entwicklung eines geeigneten theoretischen Modells als Grundlage zur Untersuchung des Standortes hinsichtlich vorhandener Bodensteifigkeiten. b) Die Entwicklung einer neuen Inversionsmethodik unter Ber{\"u}cksichtigung aller auftretenden Moden im Oberfl{\"a}chenwellenfeld. Die Erstellung eines Modells des vertikal heterogenen Untergrundes erfolgte im Frequenz-bereichs f{\"u}r beliebig geschichtete B{\"o}den, aufbereitet durch weitestgehend analytische Formulierungen. Durch Nutzung beliebiger horizontaler, elastisch-isotroper Schichten konnte die vertikale Heterogenit{\"a}t approximiert werden. Die Definition der Green'schen Funktionen wurde in Form der Reflexions- und Transmissionskoeffizienten durchgef{\"u}hrt. Die L{\"o}sung des formulierten Halbraumproblems erfolgte unter Verwendung der Konturintegration. Dazu wurde die Vorgehensweise der bestehenden L{\"o}sung des homogenen Halbraums auf das Problem des geschichteten Mediums {\"u}bertragen. Die daraus sich ergebende L{\"o}sung ist in ein K{\"o}rperwellen- und ein Oberfl{\"a}chenwellenfeld separiert. Der Vorteil dieser analytischen Betrachtungsweise liegt in der eindeutigen Zuordnungsm{\"o}glichkeit der erhaltenen L{\"o}sungen zu Wellentypen und in der klaren Dispersionscharakteristik der berechneten Modelle. Im Gegensatz dazu liefern numerische L{\"o}sungen, wie FEM, immer ein Wellenfeld, in dem die Wellentypen zugeordnet bzw. interpretiert werden m{\"u}ssen. Mit Hilfe der synthetischen Bodenmodellierung wird das Verhalten von geschichteten B{\"o}den bei durchlaufenden Oberfl{\"a}chenwellenfeldern simuliert und untersucht. F{\"u}r die Untersuchung der Profile wurde haupts{\"a}chlich die Modale Superposition von Oberfl{\"a}chenwellen und die Wellenzahl-Integration verwendet. Bei der Analyse von Oberfl{\"a}chenwellenfeldern in vorhandenen Medien sind abweichend von den {\"u}blichen seismischen Methoden spezielle Untersuchungsmethoden zur Ermittlung der vorhandenen Dispersion notwendig. Zur Durchf{\"u}hrung der Dispersionsanalyse wird in geotechnischen Untersuchungen in der Regel das Phasen-Differenzen-Verfahren (SASW) genutzt. Aufgrund der beschr{\"a}nkten Aussagef{\"a}higkeit dieses Verfahrens zu auftretenden h{\"o}heren Moden werden verbesserte Analysemethoden zur experimentellen Auswertung hinzugezogen. Diese Methoden nutzen zur Informationsgewinnung das r{\"a}umlich ausgedehnte Wellenfeld. Ausgehend von dem Dispersionsverhalten kann die Bodenstruktur mittels inverser Methoden bestimmt werden. F{\"u}r die gemeinsame Inversion der in den Messungen vorhandenen Moden wurde ein entsprechendes Inversionsverfahren abgeleitet. Als Grundlage der Inversion wurde ein Verfahren des kleinsten Fehlerquadrates gew{\"a}hlt. Der Vorteil hinsichtlich einer effizienten und stabilen Inversion unter Nutzung dieser Methodik {\"u}berwiegt den Nachteil der lokalen Suche nach dem Fehlerminimum. Zum Erreichen der stabilen und zielgerichteten Inversion wird der Levenberg-Marquardt Algorithmus, zusammen mit der Wichtung der Dispersions{\"a}ste entsprechend ihres Anregungsverhaltens in den Dispersionsspektren, eingesetzt. Von Vorteil hat sich innerhalb der Arbeit die gleichzeitige Behandlung von theoretischen und experimentellen Parameterstudien erwiesen, da sich Ergebnisse und Erkenntnisse beider Seiten erg{\"a}nzten. Eine Interpretation von Felddaten kann damit weitaus sicherer durchgef{\"u}hrt werden. Zus{\"a}tzlich konnten die erarbeiteten experimentellen und theoretischen Verfahren gegenseitig {\"u}berpr{\"u}ft werden.},
  subject      = {Inversionsalgorithmus},
  language  = {de}
}
@phdthesis{Kanzow2004,
  author    = {Kanzow, Ulrich Michael},
  title     = {Beschreibung des Fließwiderstandes in der numerischen Berechnung von Gerinnen mit extremer relativer Rauheit},
  doi       = {10.25643/bauhaus-universitaet.418},
  url       = {http://nbn-resolving.de/urn:nbn:de:gbv:wim2-20050307-4181},
  school      = {Bauhaus-Universit{\"a}t Weimar},
  year      = {2004},
  abstract  = {Die ein- und zweidimensionale numerische Berechnung der Fließvorg{\"a}nge in offenen Gerinnen findet zunehmend auch Anwendung in der Modellierung immer komplexerer Prozesse im unter Anderem im Bereich der {\"O}kosystemmodellierung in Gebirgs- und Mittelgebirgsb{\"a}chen. In diesem Bereich existieren zurzeit noch Probleme hinsichtlich der hydraulischen Prognoserechnungen. Neben den numerischen Grundlagen werden die Abh{\"a}ngigkeiten des Str{\"o}mungsfeldes von der Rauheitsstruktur der Sohle und der {\"U}berdeckungsh{\"o}he behandelt. Zur Untersuchung der Fließwiderstandsgleichungen wurden Laborversuche in einer Versuchsrinne durchgef{\"u}hrt. Es wird gezeigt, dass der {\"u}blicherweise verwendete Ansatz des mittleren Sohlgef{\"a}lles bei der Berechnung der Sohlschubspannungsgeschwindigkeit u* in Stufen-Becken-Sequenzen nicht zul{\"a}ssig ist. Stattdessen ist es erforderlich, die lokalen Energieliniengef{\"a}lle zu bestimmen und einzusetzen. Die Anwendung der aus der Literatur bekannten Ans{\"a}tze zur Beschreibung des Fließwiderstandes f{\"u}hrt zu keinen befriedigenden Ergebnissen und wird ausf{\"u}hrlich diskutiert. In der Untersuchung der verschiedenen Fließwiderstandsbeziehungen zeigte sich, dass insbesondere die ungen{\"u}gende Beschreibung der Rauheitstruktur der Sohloberfl{\"a}che durch einen charakteristischen Korndurchmesser des Sohlmaterials als unzureichend anzusehen ist. Hinsichtlich der Beschreibung rauer Oberfl{\"a}chenstrukturen wurde ein einfacher Segmentierungsalgorithmus entwickelt, der es erlaubt, komplizierte Oberfl{\"a}chenstrukturen zu vereinfachen und {\"u}ber die Standardabweichung abschnittsweise Rauheiten zuzuweisen. Dieses Verfahren wird in einem zweidimensionalen hydraulischen Modell eingesetzt. Hierdurch wird f{\"u}r die Wassertiefenbestimmung als auch f{\"u}r die Fließgeschwindigkeitsbestimmung eine Ber{\"u}cksichtigung der speziellen topographischen Verh{\"a}ltnisse erm{\"o}glicht.},
  subject      = {Rauigkeit},
  language  = {de}
}
@inproceedings{ZarliStorerKazi2004,
  author    = {Zarli, Alain and Storer, Graham and Kazi, Abdul Samad (Sami)},
  title     = {Building a Better Future: Major Results from the ICCI Cluster Project},
  doi       = {10.25643/bauhaus-universitaet.199},
  url       = {http://nbn-resolving.de/urn:nbn:de:gbv:wim2-20111215-1994},
  year      = {2004},
  abstract  = {To support research in the building sector and in order to help it move towards a new digital economy, the European Commission under the 5th Framework initiative, especially the IST programme, funded various RTD projects. The opportunity to bring these IST projects together was acknowledged so that stronger links can be created under a clustering umbrella and that, moreover, links of those projects with their RTD environment could be facilitated. This has been the objective of work carried out within the ICCI (IST-2001-33022) Cluster project. This paper introduces the main aims and objectives of the project, and then presents its principal outcomes. In a second part, it synthesises the underlying concepts, technology and tools that will make ICT-based Construction a reality in a near future, and gives recommended actions for the industry, the EC and the Construction ICT R\&D in Europe, giving some benefit of this project experience to the three communities.},
  subject      = {Forschung},
  language  = {en}
}
@article{KabathStuyts2004,
  author    = {Kabath, Meik and Stuyts, Patrick},
  title     = {Building Design towards 5-dimensions},
  doi       = {10.25643/bauhaus-universitaet.271},
  url       = {http://nbn-resolving.de/urn:nbn:de:gbv:wim2-20111215-2712},
  year      = {2004},
  abstract  = {There exists a big gap between the capabilities of current 3D-CAD applications and their actual usage in practice. Many architects and planners still prefer to draft in 2D because the benefits of 3D modeling are difficult to explain. This presentation offers a basis to view the 3D building model not merely as the source for 2D plan generation. By adding extra dimensions like Time and Cost to the 3D building model it becomes possible to generate dynamic information on building construction progress with regards to used material, resources and cost. These additional benefits are key elements to many planners and contractors and may therefore widen the acceptance of 3D building modeling in general.},
  subject      = {Bauindustrie},
  language  = {en}
}