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Chapitre d'ouvrage

Limit Analysis of Complex 3D Steel Structures Using Second-Order Cone Programming

Abstract : The modelling of complex steel structures under static loading using rigid perfectly plastic material is presented within the framework of second-order cone programming (SOCP). The classic upper and lower bound principles of yield analysis, naturally written as optimization problems, are formulated as a pair of dual second-order cone programs which are then solved using a state-of-the art primal-dual interior point method (IPM). The IPM shows good robustness and efficiency along with reduced computational times especially for limit analysis. The whole process is illustrated first with basic steel structures checks of fillet welds or beams under biaxial bending moment, and second with complex 3D steel assemblies. The results show good agreement with the failures modes and resistance values presented in the Eurocode and allows us to obtain a reliable estimate of the ultimate resistance within a reasonable time.
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Contributeur : Jérémy Bleyer Connectez-vous pour contacter le contributeur
Soumis le : samedi 25 juillet 2020 - 22:42:57
Dernière modification le : vendredi 14 janvier 2022 - 03:41:23




Chadi El Boustani, Jérémy Bleyer, Karam Sab. Limit Analysis of Complex 3D Steel Structures Using Second-Order Cone Programming. Direct Methods - Methodological Progress and Engineering Applications, pp.45-62, 2021, ⟨10.1007/978-3-030-48834-5_3⟩. ⟨hal-02906864⟩



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