@article{PickHeimsundMilbradt2004,
  author    = {Pick, Tobias and Heimsund, Bjoern-Ove and Milbradt, Peter},
  title     = {Development and Analysis of Sparse Matrix Concepts for Finite Element Approximation on general Cells},
  doi       = {10.25643/bauhaus-universitaet.250},
  url       = {http://nbn-resolving.de/urn:nbn:de:gbv:wim2-20111215-2500},
  year      = {2004},
  abstract  = {In engineering and computing, the finite element approximation is one of the most well-known computational solution techniques. It is a great tool to find solutions for mechanic, fluid mechanic and ecological problems. Whoever works with the finite element method will need to solve a large system of linear equations. There are different ways to find a solution. One way is to use a matrix decomposition technique such as LU or QR. The other possibility is to use an iterative solution algorithm like Conjugate Gradients, Gauß-Seidel, Multigrid Methods, etc. This paper will focus on iterative solvers and the needed storage techniques...},
  subject      = {Finite-Elemente-Methode},
  language  = {en}
}
@article{KaklauskasCervenkaCervenka2004,
  author    = {Kaklauskas, Gintaris and Cervenka, Vladimir and Cervenka, Jan},
  title     = {Deflection Calculation of RC Beams: Finite Element Software versus Design Code Methods},
  doi       = {10.25643/bauhaus-universitaet.249},
  url       = {http://nbn-resolving.de/urn:nbn:de:gbv:wim2-20111215-2498},
  year      = {2004},
  abstract  = {The paper investigates accuracy of deflection predictions made by the finite element package ATENA and design code methods ACI and EC2. Deflections have been calculated for a large number of experimental reinforced concrete beams reported by three investigators. Statistical parameters have been established for each of the technique at different load levels, separately for the beams with small and moderate reinforcement ratio.},
  subject      = {Finite-Elemente-Methode},
  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}
}
@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}
}
@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}
}
@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}
}
@article{SemenovAlekseevaTarlapan2004,
  author    = {Semenov, Vitaly and Alekseeva, Elena and Tarlapan, Oleg},
  title     = {Virtual Construction using Map-based Approach},
  doi       = {10.25643/bauhaus-universitaet.244},
  url       = {http://nbn-resolving.de/urn:nbn:de:gbv:wim2-20111215-2447},
  year      = {2004},
  abstract  = {The paper presents a general map-based approach to prototyping of products in virtual reality environments. Virtual prototyping of products is considered as a consistent simulation and visualization process mapping the source product model into its target visual representations. The approach enables to interrelate formally the product and visual information models with each other by defining mapping rules, to specify a prototyping scenario as a composition of map instances, and then to explore particular product models in virtual reality environments by interpreting the composed scenario. Having been realized, the proposed approach provides for the strongly formalized method and the common software framework to build virtual prototyping applications. As a result, the applications gain in expressiveness, reusability and reliability, as well as take on additional runtime flexibility...},
  subject      = {Produktmodell},
  language  = {en}
}
@article{RombergNigglvanTreeck2004,
  author    = {Romberg, Richard and Niggl, Andreas and van Treeck, Christoph},
  title     = {Structural Analysis based on the Product Model Standard IFC},
  doi       = {10.25643/bauhaus-universitaet.243},
  url       = {http://nbn-resolving.de/urn:nbn:de:gbv:wim2-20111215-2433},
  year      = {2004},
  abstract  = {In this paper we present a computer aided method supporting co-operation between different project partners, such as architects and engineers, on the basis of strictly three-dimensional models. The center of our software architecture is a product model, described by the Industry Foundation Classes (IFC) of the International Alliance for Interoperability (IAI). From this a geometrical model is extracted and automatically transferred to a computational model serving as a basis for various simulation tasks. In this paper the focus is set on the advantage of the fully three-dimensional structural analysis performed by p-version of the finite element analysis. Other simulation methods are discussed in a separate contribution of this Volume (Treeck 2004). The validity of this approach will be shown in a complex example.},
  subject      = {Produktmodell},
  language  = {en}
}
@article{KiviniemiFischer2004,
  author    = {Kiviniemi, Arto and Fischer, Martin},
  title     = {Requirements Management Interface to Building Product Models},
  doi       = {10.25643/bauhaus-universitaet.242},
  url       = {http://nbn-resolving.de/urn:nbn:de:gbv:wim2-20111215-2427},
  year      = {2004},
  abstract  = {In current AEC practice client requirements are typically recorded in a building program, which, depending on the building type, covers various aspects from the overall goals, activities and spatial needs to very detailed material and condition requirements. This documentation is used as the starting point of the design process, but as the design progresses, it is usually left aside and changes are made incrementally based on the previous design solution. These incremental small changes can lead to a solution that may no longer meet the original requirements. In addition, design is by nature an iterative process and the proposed solutions often also cause evolution in the client requirements. However, the requirements documentation is usually not updated accordingly. Finding the latest updates and evolution of the requirements from the documentation is very difficult, if not impossible. This process can lead to an end result, which is significantly different from the documented requirements. Some important requirements may not be satisfied, and even if the design process was based on agreed-upon changes in the scope and requirements, differences in the requirements documents and in the completed building can lead to well-justified doubts about the quality of the design and construction process...},
  subject      = {Produktmodell},
  language  = {en}
}
@article{HoltzhauerSaal2004,
  author    = {Holtzhauer, Eric and Saal, Helmut},
  title     = {Product modelling in the steel construction domain},
  doi       = {10.25643/bauhaus-universitaet.241},
  url       = {http://nbn-resolving.de/urn:nbn:de:gbv:wim2-20111215-2415},
  year      = {2004},
  abstract  = {The complexity of the relationships between the actors of a building project requires high efficiency in communication. Among other things, data sharing is crucial. The exchange of data is made possible by interfaces between expert programs, which rely on product models. The latter are neutral standards with formal definitions of building objects and their attributes. This paper deals with the state of the art and the research activities concerning product models in the steel construction domain and the advantages provided by this technology for the sector.},
  subject      = {Produktmodell},
  language  = {en}
}