EVALUATION OF SIESMIC RESPONSE OF SYMMETRIC AND ASYMMETRIC MULTISTOREYED BUILDINGS

Abstract

A building on hill slope differs in different way from other buildings. The various floors of such buildings steps back towards the hill slope and at the same time building may have setbacks also. Due to varied configurations of buildings in hill areas, these buildings become highly irregular and asymmetric. Buildings constructed in hill areas are much more vulnerable to seismic environment. In this study, 3D analytical model of four and nine storied buildings have been generated for symmetric and asymmetric building models and analyzed using structural analysis tool "ETABS Nonlinear". To study the effect of varying height of columns in ground storey due to sloping ground, the plan layout is kept similar for both buildings on plane and sloping ground. The analytical model of the building includes all important components that influence the mass, strength, stiffness and deformability of the structure. To study the effect of infill during earthquake, seismic analysis using both linear dynamics (response spectrum method) as well as nonlinear static procedure (pushover) has been performed.