@inproceedings{BoykoKoepplerKirichuk2000,
  author    = {Boyko, Igor P. and K{\"o}ppler, H. and Kirichuk, A.},
  title     = {INTERACTION OF SPATIAL THIN-WALLED STRUCTURES WITH FLUID-SATURATED SOIL},
  doi       = {10.25643/bauhaus-universitaet.574},
  url       = {http://nbn-resolving.de/urn:nbn:de:gbv:wim2-20111215-5748},
  year      = {2000},
  abstract  = {Thin-walled spatial structures are broadly used in the modern technician and building. In fuel industry for long-term keeping of oil and gas are used reservoirs of various capacity, which on technological reasons can be shipped under the soil. Shells of reservoirs combine in itself high toughness and low specific consumption of materials. At the same time, being under the soil, they feel steady-state and dynamic loads from ambiance, which particularly in the event, when reservoir is empty, can bring about the loss of stability of its form. On the other hand contact interactions of shell and soil greatly depend on features of ambiance and its saturating of liquid. For building generalized porous springy ambiance models, saturated by the liquid, it is possible to use Bio equations of motion for displacement of hard and fluid phases. Elaboration of mathematical specified interaction models and theirs realization by means of modern computing software allows to study behaviour of spatial thin-walled designs on base of geometric nonlinear theory of shells},
  subject      = {Raumtragwerk},
  language  = {en}
}
@inproceedings{BubnerThierfelder2000,
  author    = {Bubner, Andre and Thierfelder, Jan},
  title     = {Austausch von planungsrelevanten Daten im Stahlbau},
  doi       = {10.25643/bauhaus-universitaet.614},
  url       = {http://nbn-resolving.de/urn:nbn:de:gbv:wim2-20111215-6146},
  year      = {2000},
  abstract  = {Datenaustausch, Daten resp. Produktdatenmodelle sind seit mehreren Jahren Themen in der Forschung. Verschiedene Forschungsprojekte und Initiativen diverser Firmen f{\"u}hrten zu bereichs{\"u}bergreifenden Ans{\"a}tzen wie IFC und verschiedenen STEP-AP´s. Speziell im Stahlbau sind die Projekte >Produktschnittstelle Stahlbau< und >CIMsteel< entwickelt, weiterentwickelt und {\"u}berarbeitet worden. Als Weiterentwicklung der bisher existierenden Austauschformate versuchen neuere Ans{\"a}tze den Nutzen {\"u}ber die reine Daten{\"u}bermittlung hinaus zu erweitern. So integrieren diese L{\"o}sungsvorschl{\"a}ge Aspekte der Kommunikation, der Zusammenarbeit und des Managements. Des weiteren {\"u}bernehmen sie Aufgaben der Daten- und Modellverwaltung. Somit erfolgt eine digitale Abbildung unter Einbezug s{\"a}mtlicher ermittelter Daten. Resultierend aus den besonderen Randbedingungen im Bauwesen, wird ein Bauwerksmodell aus untereinander in Beziehung gesetzten Dom{\"a}nenmodellen aufgebaut},
  subject      = {Datenaustausch},
  language  = {de}
}
@inproceedings{BurghardtMeissner2000,
  author    = {Burghardt, Michael and Meißner, Udo F.},
  title     = {Dreidimensionale Finite-Element-Baugrundmodelle f{\"u}r Ingeniuerprobleme},
  doi       = {10.25643/bauhaus-universitaet.575},
  url       = {http://nbn-resolving.de/urn:nbn:de:gbv:wim2-20111215-5750},
  year      = {2000},
  abstract  = {Bei komplexen Gr{\"u}ndungskonstruktionen sind Planungsfehler durch eine konsistente Modellierung vermeidbar. Manuelle Berechnungsmethoden erm{\"o}glichen im allgemeinen ein dreidimensionales Vorgehen nicht. Numerische Berechnungsmethoden, wie z.B. die Finite-Element-Methode, sind ein optimales Werkzeug zur ganzheitlichen Simulation des Problems. Die f{\"u}r die Finite-Element-Analyse notwendige Diskretisierung komplexer Bau- grundstrukturen ist manuell nicht zu bew{\"a}ltigen. Der vorliegende Beitrag zeigt wie ein Finite-Element-Modell automatisch aus einem geotechnischen Modell unter Ber{\"u}cksichtigung der spezifischen Anforderungen der Baugrund-Tragwerk-Struktur und des Bauablaufes erzeugt werden kann. Hierbei wird die Ber{\"u}cksichtigung der geometrischen und der mechanischen Besonderheiten bei der Netzgenerierung dargestellt.},
  subject      = {Baugrund},
  language  = {de}
}
@inproceedings{Buecker2000,
  author    = {B{\"u}cker, Joachim},
  title     = {Qualit{\"a}tssicherung durch baubegleitende Pr{\"u}fung},
  doi       = {10.25643/bauhaus-universitaet.704},
  url       = {http://nbn-resolving.de/urn:nbn:de:gbv:wim2-20111215-7046},
  year      = {2000},
  abstract  = {Darstellung der aktuellen Situation der Qualit{\"a}tssicherung im Bauwesen, der Aufgaben und der Vorgehensweise des T{\"U}V Bautechnik bei der Qualit{\"a}ts{\"u}berwachung am Bau.},
  subject      = {Baubetriebslehre},
  language  = {de}
}
@inproceedings{ChristovPetkov2000,
  author    = {Christov, Christo T. and Petkov, Zdravko B.},
  title     = {DETERMINATION OF THE DYNAMIC STRESS INTENSITY FACTOR USING ADVANCED ENERGY RELEASE EVALUATION},
  doi       = {10.25643/bauhaus-universitaet.577},
  url       = {http://nbn-resolving.de/urn:nbn:de:gbv:wim2-20111215-5770},
  year      = {2000},
  abstract  = {In this study a simple effective procedure practically based upon the FEM for determination of the dynamic stress intensity factor (DSIF) depending on the input frequency and using an advanced strain energy release evaluation by the simultaneous release of a set of fictitious nodal spring links near the crack tip is developed and applied. The DSIF is expressed in terms of the released energy per unit crack length. The formulations of the linear fracture mechanics are accepted. This technique is theoretically based upon the eigenvalue problem for assessment of the spring stiffnesses and on the modal decomposition of the crack shape. The inertial effects are included into the released energy. A linear elastic material, time-dependent loading of sine type and steady state response of the structure are assumed. The procedure allows the opening, sliding and mixed modes of the structure fracture to be studied. This rational and powerful technique requires a mesh refinement near the crack tip. A numerical test example of a square notched steel plate under tension is given. Opening mode of fracture is studied only. The DSIF is calculated using a coarse mesh and a single node release for the released energy computation as well a fine mesh and simultaneous release of four links for more accurate values. The results are analyzed. Comparisons with the known exact results from a static loading are presented. Conclusions are derived. The values of the DSIF are significantly larger than the values of the corresponding static SIF. Significant peaks of the DSIF are observed near the natural frequences. This approach is general, practicable, reliable and versatile.},
  subject      = {Bruchmechanik},
  language  = {en}
}
@inproceedings{ChristovPetrova2000,
  author    = {Christov, Christo T. and Petrova, Lyllia B.},
  title     = {COMPARISON OF SOME VARIANTS OF THE FINITE STRIP METHOD FOR ANALYSIS OF COMPLEX SHELL STRUCTURES},
  doi       = {10.25643/bauhaus-universitaet.576},
  url       = {http://nbn-resolving.de/urn:nbn:de:gbv:wim2-20111215-5760},
  year      = {2000},
  abstract  = {The subject of this paper is to explore and evaluate the semi-analytical, analytical and numerical versions of the finite strip method (FSM) for static, dynamic and stability analyses of complex thin-walled structures. Many of bridge superstructures, some roof and floor structures, reservoirs, channels, tunnels, subways, layered shells and plates etc. can be analysed by this method. In both semi-analytical and analytical variants beam eigenvalue vibration or stability functions, orthogonal polynomials, products of these functions are used as longitudinal functions of the unknowns. In the numerical FSM spline longitudinal displacement functions are implemented. In the semi-analytical and numerical FSM conventional transverse shape functions for displacements are used. In the analytical FSM the accurate function of the strip normal displacement and the plane stress function are applied. These three basic variants of the FSM are compared in quality and quantity in view to the following: basic ideas, modelling, unknowns, DOF, a kind and order of the strips, longitudinal and transverse displacement and stress functions, compatibility requirements, boundary conditions, ways for obtaining of the strip stiffness and load matrices, a kind and size of the structure stiffness matrix and its band width, mesh density, necessary number of terms in length, accuracy and convergence of the stresses and displacements, approaches for refining results, input and output data, computer resources used, application area, closeness to other methods, options for future development. Numerical example is presented. Advantages and shortcomings are pointed. Conclusions are given.},
  subject      = {Schale},
  language  = {en}
}
@inproceedings{Counsell2000,
  author    = {Counsell, John},
  title     = {Spatial Database Management and Generation of VRML Models},
  doi       = {10.25643/bauhaus-universitaet.579},
  url       = {http://nbn-resolving.de/urn:nbn:de:gbv:wim2-20111215-5791},
  year      = {2000},
  abstract  = {The cost of keeping large area urban computer aided architectural design (CAAD) models up to date justifies wider use and access. This paper reviews the potential for collaborative groupwork creation and maintenance of such models and suggests an approach to data entry, data management and generation of appropriate levels of detail models from a Geographic Information System (GIS). Staff at the University of the West of England (UWE) modelled a large area of Bristol to demonstrate millennium landmark proposals. It became swiftly apparent that continued amendment of the model to keep it an accurate reflection of changes on the ground was a major data management problem. Piecing in new CAAD models received from Architectural Practices to visualise them in context as part of the planning negotiation process has often taken staff several days of work for each instance. The model is so complex and proprietary that Bristol City operates a specialist visualisation bureau service. UWE later modelled the environs of the Tower of London to support bids for funding and to provide the context for judging the visual impact of iterative design development. Further research continued to develop more effective approaches to. Data conversion and amalgamation from all the diverse sources was the major impediment to effective group working to create the models. It became apparent that a GIS would assist retrieving all the appropriate data that described the part of the model under creation. It was possible to predict that management of many historic part models stepping back through time, allowing for different expert interpretations to co-exist would be in itself a major task requiring a spatial database/GIS. UWE started afresh from the original source data, to explore the collaborative use of GIS and Virtual Reality Modelling Language (VRML) to integrate models and interventions from various sources and to generate an overall navigable interactive whole. Current exploration of the combination of event driven behaviours and Structured Query Language is seeking to define how appropriately to modify objects in the VRML model on demand. This is beginning to realise the potential for use of this process for: asynchronous group modelling on the lines of a collaborative virtual design studio; historic building maintenance management; visitor management; interpretation of historic sites to visitors and public planning information.},
  subject      = {Raumordnung},
  language  = {en}
}
@inproceedings{DaniunasKomkaWerner2000,
  author    = {Daniunas, A. and Komka, A. and Werner, F.},
  title     = {ANALYSIS AND DETERMINATION OF STRENGTH IN PLASTIC STAGE OF FREE FORM STEEL SHAPES},
  doi       = {10.25643/bauhaus-universitaet.580},
  url       = {http://nbn-resolving.de/urn:nbn:de:gbv:wim2-20111215-5803},
  year      = {2000},
  abstract  = {The steel structure design codes require to check up the member strength when evaluating plastic deformations. The model of perfectly plastic material is accepted. The strength criteria for simple cross-sections (I section, etc.) of steel members are given in design codes. The analytical strength criteria for steel cross-sections and numerical approaches based on stepwise procedure are investigated in many articles. Another way for checking the carrying capacity of cross-sections is the use of methods that are applied for defining strain-deformed state of elastic perfectly plastic systems. In this paper non-iterative methods are suggested for checking strength of cross-sections. Carrying capacity of cross section is verified according to extremum principle of plastic fail under monotonically loading and the strain-deformed state of cross-section is defined according to extremum energy principals of elastic potential of residual stresses and complementary work of residual displacements. The mathematical expressions of these principals for discrete cross-section are formulated as problems of convex mathematical programming. The cross-section of steel member using finite element method is divided into free form plane elements. The constant distribution of stresses along the finite element is accepted. The relationships of finite elements for static formulation of the problem are formed so, that kinematics formulation relationships could be obtained in a formal way using the theory of duality. Numerical examples of determination of cross-section strength, composition of interactive curves and composition of moment-curvature curves for different axial force levels are presented.},
  subject      = {Stahlkonstruktion},
  language  = {en}
}
@inproceedings{Dannecker2000,
  author    = {Dannecker, Lutz},
  title     = {Bausch{\"a}den im Wohn- und Gewerbebau - eine Th{\"u}ringer Bestandsaufnahme und Ans{\"a}tze zur Probleml{\"o}sung},
  doi       = {10.25643/bauhaus-universitaet.705},
  url       = {http://nbn-resolving.de/urn:nbn:de:gbv:wim2-20111215-7057},
  year      = {2000},
  abstract  = {Der Verfasser gibt einen {\"U}berblick {\"u}ber die aktuelle Bauschadensforschung an Wohn-, Gewerbe- und Industriebauten (Schadensanf{\"a}lligkeit, zeitliche Verteilung von Bausch{\"a}den, Verteiliung der Verursachung und des Verschuldens, Schadensintensit{\"a}t in Abh{\"a}ngigkeit von den Vertragsstrukturen, M{\"a}ngel- und Schadensbeseitigungskosten). Es werden Schlussfolgerungen auf notwendige Maßnahmen zur Reduzierung der Schadensintensit{\"a}t gezogen.},
  subject      = {Baubetriebslehre},
  language  = {de}
}
@inproceedings{DeMichelis2000,
  author    = {De Michelis, Marco},
  title     = {Fin-de-Si{\`e}cle},
  doi       = {10.25643/bauhaus-universitaet.1201},
  url       = {http://nbn-resolving.de/urn:nbn:de:gbv:wim2-20111215-12016},
  year      = {2000},
  abstract  = {Wissenschaftliches Kolloquium vom 14. bis 16. Oktober 1999 in Weimar an der Bauhaus-Universit{\"a}t zum Thema: ‚global village - Perspektiven der Architektur'},
  subject      = {Architekturtheorie},
  language  = {en}
}