SEISMIC EVALUALTION OF MULTISTORIED BUILDINGS WITH GROUND SOFT STORY AND WITH INFILLS

Civil Engineering

Multistory buildings with open (soft story) ground floor are inherently vulnerable to collapse due to seismic loads, their constructions is still widespread in develop nations. Social and functional need to provide car parking space at ground level far out weights the warning against such buildings from engineering community. In this study, 3D analytical model of multistory buildings have been generating for different buildings models and analyzing using structural analysis tool ‘ETABS’. To study the effect of ground soft, infill, and models with ground soft during earthquake, seismic analysis both linear static, linear dynamic (response spectrum method) as well as nonlinear static (pushover) procedure have to be perform. The analytical model of building includes all important components that influence the mass, strength, stiffness of the structure. The deflections at each story have to be compare by performing equivalent static, response spectrum method as well as pushover have also be perform to determine capacity, demand and performance level of the considering models. Numerical results for the following seismic demands considering the inelastic behavior of the building, ductility coefficients of structures

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