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Testing and analysis of steel and concrete beam-column assemblies under a column removal scenario in Journal of structural engineering, Vol. 137 N° 9 (Septembre 2011)
Testing and analysis of steel and concrete beam-column assemblies under a column removal scenario [texte imprimé] / Sadek, Fahim, Auteur ; Joseph A. Main, Auteur ; H. S. Lew, Auteur . - 2011 . - pp. 881-892.
Génie Civil
Langues : Anglais (eng)
in Journal of structural engineering > Vol. 137 N° 9 (Septembre 2011) . - pp. 881-892
Mots-clés : Buildings Concrete structures Finite-element method Full-scale tests Nonlinear analysis Progressive collapse Seismic design Steel Index. décimale : 624 Constructions du génie civil et du bâtiment. Infrastructures. Ouvrages en terres. Fondations. Tunnels. Ponts et charpentes Résumé : This paper presents an experimental and computational assessment of the performance of steel and reinforced concrete beam-column assemblies under monotonic vertical displacement of a center column, simulating a column removal scenario. The assemblies represent portions of structural framing systems designed as intermediate moment frames (IMFs) and special moment frames (SMFs) for Seismic Design Categories C and D, respectively. The steel IMF and SMF assemblies were designed in accordance with ANSI/AISC 341-02 by using prequalified moment connections specified in FEMA 350. The concrete IMF and SMF assemblies were designed and detailed in accordance with ACI 318-02 requirements. Each full-scale assembly comprises two beam spans and three columns, and downward displacements of the center column are imposed until failure. The study provides insight into the behavior and failure modes of the assemblies, including the development of catenary action. Both detailed and reduced finite-element models are developed, which capture the primary response characteristics and failure modes. Analyses with the reduced models can be executed rapidly without loss of accuracy, facilitating implementation in models of entire structural systems.
DEWEY : 624.17 ISSN : 0733-9445 En ligne : http://ascelibrary.org/sto/resource/1/jsendh/v137/i9/p881_s1?bypassSSO=1
