@inproceedings{ParmeeAbraham2004,
  author    = {Parmee, Ian and Abraham, Johnson},
  title     = {User-centric Evolutionary Design Systems - the Visualisation of Emerging Multi-Objective Design Information},
  doi       = {10.25643/bauhaus-universitaet.109},
  url       = {http://nbn-resolving.de/urn:nbn:de:gbv:wim2-20111215-1094},
  year      = {2004},
  abstract  = {The paper describes further developments of the interactive evolutionary design concept relating to the emergence of mutually inclusive regions of high performance design solutions. These solutions are generated from cluster-oriented genetic algorithm (COGAs) output and relate to a number of objectives introduced during the preliminary design of military airframes. The data-mining of multi-objective COGA (moCOGA) output further defines these regions through the application of clustering algorithms, data reduction and variable attribute relevance analyses. A number of visual representations of the COGA output projected onto both variable and objective space are presented. The multi-objective output of the COGA is compared to output from a Strength Pareto Evolutionary Algorithm (SPEA-II) to illustrate the manner in which moCOGAs can generate good approximations to Pareto frontiers.},
  subject      = {Konzipieren <Technik>},
  language  = {en}
}
@inproceedings{GarrettAkinciWang2004,
  author    = {Garrett, James H. and Akinci, Burcu and Wang, Hongjun},
  title     = {Towards Domain-Oriented Semi-Automated Model Matching for Supporting Data Exchange},
  doi       = {10.25643/bauhaus-universitaet.132},
  url       = {http://nbn-resolving.de/urn:nbn:de:gbv:wim2-20111215-1324},
  year      = {2004},
  abstract  = {The process of matching data represented in two different data models is a longstanding issue in the exchange of data between different software systems. While the traditional manual matching approach cannot meet today's demands on data exchange, research shows that a fully automated generic approach for model matching is not likely, and generic semi-automated approaches are not easy to implement. In this paper, we present an approach that focuses on matching data models in a specific domain. The approach combines a basic model matching approach and a version matching approach to deduce new matching rules to enable data transfer between two evolving data models.},
  subject      = {Bauwerk},
  language  = {en}
}
@inproceedings{BoukampAkinci2004,
  author    = {Boukamp, Frank and Akinci, Burcu},
  title     = {Towards Automated Defect Detection: Object-oriented Modeling of Construction Specifications},
  doi       = {10.25643/bauhaus-universitaet.131},
  url       = {http://nbn-resolving.de/urn:nbn:de:gbv:wim2-20111215-1315},
  year      = {2004},
  abstract  = {This paper describes an ongoing research on the representation and reasoning about construction specifications, which is part of a bigger research project that aims at developing a formalism for automating the identification of deviations and defects on construction sites. We specifically describe the requirements on product and process models and an approach for representing and reasoning about construction specifications to enable automated detection and assessment of construction deviations and defects. This research builds on the previous research on modeling design specifications and extends and elaborates concept of contexts developed in that domain. The paper provides an overview of how the construction specifications are being modele d in this research and points out future steps that need to be accomplished to develop the envisioned automated deviation and defect detection system.},
  subject      = {Bauwerk},
  language  = {en}
}
@inproceedings{WardThorpePrice2004,
  author    = {Ward, Michael and Thorpe, Tony and Price, Andrew},
  title     = {The Re-use of Site Data to Inform Business Processes},
  doi       = {10.25643/bauhaus-universitaet.130},
  url       = {http://nbn-resolving.de/urn:nbn:de:gbv:wim2-20111215-1308},
  year      = {2004},
  abstract  = {The increased implementation of site data capture technologies invariably results in an increase in data warehousing and database technologies to store captured data. However, restricted use of data beyond the initial application could potentially result in a loss of understanding of site processes. This could in turn lead to poor decision making at production, tactical and strategic levels. Concrete usage data have been collected from two piling processes. These data have been analysed and the results highlighted potential improvements that could be made to existing site management and estimating processes. A cost benefit analysis has been used to support decision making at the strategic level where the identified improvements require capital expenditure.},
  subject      = {Bauwerk},
  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{HauschildHuebler2003,
  author    = {Hauschild, Thomas and H{\"u}bler, Reinhard},
  title     = {Techniken der Verwaltung dynamischer digitaler Bauwerksmodelle f{\"u}r Revitalisierungsvorhaben},
  doi       = {10.25643/bauhaus-universitaet.305},
  url       = {http://nbn-resolving.de/urn:nbn:de:gbv:wim2-20111215-3054},
  year      = {2003},
  abstract  = {Modellverwaltungssysteme sind eine geeignete technologische Basis zum Management digitaler Bauwerksmodelle bei Planungst{\"a}tigkeiten f{\"u}r den Neubau als auch f{\"u}r die Revitalisierung von Bauwerken. Die Unterst{\"u}tzung von Revitalisierungsprozessen impliziert f{\"u}r den Entwurf integrierter Planungsumgebungen spezifische Anforderungen wie die Repr{\"a}sentation von Informationen, die mit verschiedenen Typen von Vagheit behaftet sind, die Notwendigkeit, den Soll- sowie den Ist- Zustand des Bauwerks abzubilden und die F{\"a}higkeit des Umgangs mit temporal inkonsistenten Modellzust{\"a}nden. Die erforderliche Dynamik der Dom{\"a}nenmodelle und die erforderliche Nutzbarkeit in Virtual Enterprises stellen weitere Anspr{\"u}che an die Realisierungsbasis der Modellverwaltungssysteme. Zur Implementierung derartiger Systeme erweist es sich als vorteilhaft, Eigenschaften objektorientierter Programmiersprachen mit nichtstatischen Typsystemen auszunutzen, da diese durch die vorhandene Metaebene sowie Introspektions- und Reflektionsmechanismen eine effiziente Realisierungsbasis bereitstellen. Zur effektiven Unterst{\"u}tzung synchroner kooperativer Planungst{\"a}tigkeiten innerhalb einzelner Fachdisziplinen wurde ein Benachrichtigungsmechanismus realisiert, der an das Modellverwaltungssystem angekoppelte Fachapplikationen {\"u}ber nebenl{\"a}ufig vorgenommene Modifikationen am zugeh{\"o}rigen Dom{\"a}nenmodell oder an Projektinformationen informiert. Weiterhin existiert ein Mechanismus zur vereinfachten Anbindung von existierenden Applikationen, die auf statischen Partialmodellen beruhen oder standardisierte, modellbasierte Austauschformate unterst{\"u}tzen. Abschließend wird eine aus einem zentralen Projektserver, Dom{\"a}nenservern und Dom{\"a}nenclients bestehende hybride Systemarchitektur vorgestellt, die geeignet ist, unter den Randbedingungen kooperativer und geographisch verteilter Arbeit bei Revitalisierungsvorhaben in Virtual Enterprises eingesetzt zu werden.},
  subject      = {Bauwerk},
  language  = {de}
}
@inproceedings{XieIssaO'Brien2004,
  author    = {Xie, Haiyan and Issa, Raja and O'Brien, William},
  title     = {Structure of a Formal User Model for Construction Information Retrieval},
  doi       = {10.25643/bauhaus-universitaet.129},
  url       = {http://nbn-resolving.de/urn:nbn:de:gbv:wim2-20111215-1296},
  year      = {2004},
  abstract  = {Information science researchers and developers have spent many years addressing the problem of retrieving the exact information needed and using it for analysis purposes. In informationseeking dialogues, the user, i.e. construction project manager or supplier, often asks questions about specific aspects of the tasks they want to perform. But most of the time it is difficult for the software systems to unambiguously understand their overall intentions. The existence of information tunnels (Tannenbaum 2002) aggravates this phenomenon. This study includes a detailed case study of the material management process in the construction industry. Based on this case study, the structure of a formal user model for information retrieval in construction management is proposed. This prototype user model will be incorporated into the system design for construction information management and retrieval. This information retrieval system is a user-centered product based on the development of a user configurable visitor mechanism for managing and retrieving project information without worrying too much about the underlying data structure of the database system. An executable UML model combined with OODB is used to reduce the ambiguity in the user's intentions and to achieve user satisfaction.},
  subject      = {Bauwerk},
  language  = {en}
}
@inproceedings{ChangwanHaasCaldas2004,
  author    = {Changwan, Kim and Haas, Carl and Caldas, Carlos},
  title     = {Spatial data acquisition, integration, and modeling for real-time project life-cycle applications},
  doi       = {10.25643/bauhaus-universitaet.128},
  url       = {http://nbn-resolving.de/urn:nbn:de:gbv:wim2-20111215-1280},
  year      = {2004},
  abstract  = {Current methods for site modeling employs expensive laser range scanners that produce dense point clouds which require hours or days of post-processing to arrive at a finished model. While these methods produce very detailed models of the scanned scene, useful for obtaining as-built drawings of existing structures, the associated computational time burden precludes the methods from being used onsite for real-time decision-making. Moreover, in many project life-cycle applications, detailed models of objects are not needed. Results of earlier research conducted by the authors demonstrated novel, highly economical methods that reduce data acquisition time and the need for computationally intensive processing. These methods enable complete local area modeling in the order of a minute, and with sufficient accuracy for applications such as advanced equipment control, simple as-built site modeling, and real-time safety monitoring for construction equipment. This paper describes a research project that is investigating novel ways of acquiring, integrating, modeling, and analyzing project site spatial data that do not rely on dense, expensive laser scanning technology and that enable scalability and robustness for real-time, field deployment. Algorithms and methods for modeling objects of simple geometric shape (geometric primitives from a limited number of range points, as well as methods provide a foundation for further development required to address more complex site situations, especially if dynamic site information (motion of personnel and equipment). Field experiments are being conducted to establish performance parameters and validation for the proposed methods and models. Initial experimental work has demonstrated the feasibility of this approach.},
  subject      = {Bauwerk},
  language  = {en}
}
@inproceedings{HuebnerWalhornKoelke2003,
  author    = {H{\"u}bner, Bj{\"o}rn and Walhorn, Elmar and K{\"o}lke, Andreas},
  title     = {Simultane L{\"o}sung gekoppelter Struktur-Fluid-Systeme},
  doi       = {10.25643/bauhaus-universitaet.311},
  url       = {http://nbn-resolving.de/urn:nbn:de:gbv:wim2-20111215-3114},
  year      = {2003},
  abstract  = {Ein simultanes L{\"o}sungsverfahren f{\"u}r Fluid-Struktur-Wechselwirkungen aus dem Bereich des Bauingenieurwesens wird vorgestellt. Die Modellierung der Tragwerksdynamik erfolgt mit der geometrisch nichtlinearen Elastizit{\"a}tstheorie in total Lagrangescher Formulierung. Die Str{\"o}mung wird mit den inkompressiblen Navier-Stokes-Gleichungen beschrieben. Wenn Turbulenzeffekte massgeblich sind, kommen die Reynolds-Gleichungen in Verbindung mit dem k-omega-Turbulenzmodell von Wilcox zum Einsatz. Zur Beschreibung von komplexen freien Oberfl{\"a}chen wird die Level-Set-Methode eingesetzt. Die einheitliche Diskretisierung von Fluid und Struktur mit der Raum-Zeit-Finite-Element-Methode f{\"u}hrt zu einem konsistenten Berechnungsmodell f{\"u}r das gekoppelte System. Da die isoparametrischen Raum-Zeit-Elemente ihre Geometrie in Zeitrichtung {\"a}ndern k{\"o}nnen, erlaubt die Methode eine nat{\"u}rliche Beschreibung des infolge der Strukturbewegung zeitver{\"a}nderlichen Str{\"o}mungsgebiets. Die gewichtete Integralformulierung der Kopplungsbedingungen mit globalen Freiwerten f{\"u}r die Interface-Spannungen sichert eine konservative Kopplung von Fluid und Struktur. Ausgew{\"a}hlte Anwendungsbeispiele zeigen die Leistungsf{\"a}higkeit der entwickelten Methodik und belegen die guten Konvergenzeigenschaften des simultanen L{\"o}sungsverfahrens.},
  subject      = {Bauwerk},
  language  = {de}
}
@inproceedings{PetkovChristov2003,
  author    = {Petkov, Zdravko B. and Christov, Christo T.},
  title     = {Response Spectra Evaluation Including Pounding Effect},
  doi       = {10.25643/bauhaus-universitaet.346},
  url       = {http://nbn-resolving.de/urn:nbn:de:gbv:wim2-20111215-3464},
  year      = {2003},
  abstract  = {Most of the existing seismic resistant design codes are based on the response spectrum theory. The influence of inelastic deformations can be evaluated by considering inelastic type of resisting force and then the inelastic spectrum is considerably different from the elastic one. Also, the influence of stiffness degradation and strength deterioration can be accounted for by including more precise models from material point of view. In some recent papers the corresponding changes in response spectra due to the P- {\"A} effect are discussed. The experience accumulated from the recent earthquakes indicates that structural pounding may considerably influence the response of structures and should be taken into account in design procedures. The most convenient way to do that is to predict the influence of the pounding on the response spectra for accelerations, velocities and displacements. Generally speaking the contact problems such as pounding are characterized by large extent of nonlinearity and slow convergence of the computational procedures. Thus obtaining spectra where the contact problem is accounted for seems very attractive from engineering point of view because could easy be implemented into the design procedures. However it is worth nothing that there is not rigorous mathematical proof that the original system can be decomposed into single equations related to single degree of freedom systems. It is the porpose of the paper to study the influence of the pounding on the response spectra and to evaluate the amplification due to the impact. For this purpose two adjacent SDOF systems are considered that are able to interact during the vibration process. This problem is solved versus the elastic stiffness ratio, which appears to be very important for such assemblage. The contact between masses is numerically simulated using opening gap elements as links. Comparisons between calculated response spectra and linear response spectra are made in order to derive analytical relationships to simply obtain the contribution of pounding. The results are graphically illustrated in response spectra format and the influence of the stiffness ratio is clarified.},
  subject      = {Bauwerk},
  language  = {en}
}