Effect of Slab Opening in Seismic Resistance of Structure

Abstract

In these days, many buildings have irregular configurations both in elevation and plan. Generally, the floor slab has been neglected or only partially considered as a strength contributing factor for seismic performance of buildings. But the floor slab plays a crucial role in imparting strength and stiffness to a frame when subjected to lateral loads. Several factors that affect the degree of slab participation, like influence of transverse beams and beam growth effect are also mentioned. Hence in the present study, symmetrical and unsymmetrical buildings with various slab type– with openings, without openings, eccentric openings and framed structures were analyzed using finite element based software ETABS for nonlinear static condition. The results of parameters considered being displacement, story drift and story shear of the diaphragm discontinuity models were compared with that of diaphragm continuity model