Progressive collapse of reinforced concrete buildings considering flexure-axial-shear interaction in plastic hinges

نویسندگان

چکیده

Progressive collapse assessment of a reinforced concrete (RC) building designed only for gravity loads and lacking dedicated lateral load resisting system was carried out using the alternate path (ALP) method finite element (FEM) numerical model created in software SAP2000. Plastic hinge capacity members evaluated considering flexure (M), axial force (N) shear (V) interaction validated procedure devised to incorporate plastic based on M-N-V into results obtained from FEM model. It found that consideration resulted capacities were lower than flexure-only hinges available which caused progressive initiate at also increased area. In second part study, it demonstrated resistance interior edge column removal scenarios appreciably improved after ordinary moment frames cost-effectively selected locations without increasing member cross-sectional dimensions. However, key design concept approach needed improving performance corner loss scenarios. Relative reduction due as compared be redesigned capacity.

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ژورنال

عنوان ژورنال: Cogent engineering

سال: 2021

ISSN: ['2331-1916']

DOI: https://doi.org/10.1080/23311916.2021.1882115