Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Strategy for numerical verification of steel structures at the ultimate limit state
A strategy is proposed for understanding the behaviour, predicting all possible failure mechanisms, evaluating the strength, and assessing the vulnerability of steel structures by means of numerical analyses using commercially available finite element software. The ultimate objective is to have a reliable numerical tool for carrying out strength verifications at the ultimate limit state. Critical buckling modes from linearised buckling analyses (LBA) of an appropriate finite element model are used as imperfection patterns for geometrically and material nonlinear imperfection analyses (GMNIA). Equilibrium paths accompanied by snapshots of deformation and stress distribution at characteristic points are proposed as a powerful tool for evaluating the results. Practical details of the implementation of the proposed strategy are discussed. Results of two case studies are used to demonstrate this methodology: (a) unreinforced and reinforced steel plates in pure compression, (b) a box-section cantilever beam with transverse and longitudinal stiffeners.
Strategy for numerical verification of steel structures at the ultimate limit state
A strategy is proposed for understanding the behaviour, predicting all possible failure mechanisms, evaluating the strength, and assessing the vulnerability of steel structures by means of numerical analyses using commercially available finite element software. The ultimate objective is to have a reliable numerical tool for carrying out strength verifications at the ultimate limit state. Critical buckling modes from linearised buckling analyses (LBA) of an appropriate finite element model are used as imperfection patterns for geometrically and material nonlinear imperfection analyses (GMNIA). Equilibrium paths accompanied by snapshots of deformation and stress distribution at characteristic points are proposed as a powerful tool for evaluating the results. Practical details of the implementation of the proposed strategy are discussed. Results of two case studies are used to demonstrate this methodology: (a) unreinforced and reinforced steel plates in pure compression, (b) a box-section cantilever beam with transverse and longitudinal stiffeners.
Strategy for numerical verification of steel structures at the ultimate limit state
Gantes, Charis J. (Autor:in) / Fragkopoulos, Konstantinos A. (Autor:in)
Structure and Infrastructure Engineering ; 6 ; 225-255
01.02.2010
31 pages
Aufsatz (Zeitschrift)
Elektronische Ressource
Unbekannt
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