Comparative Study on Non-Linear Time History Analysis of a Building With and Without Base Isolation using ETABS

Abstract

Base isolation is a device which is used to discrete the building from its foundation. Therefore, all through seismic activity, the building does not change due to the earthquake. Even if the earth moves violently, buildings tend to move like rigid bodies instead of collapsing In the current study, reinforced concrete framed structures of G + 8 and G + 16 (with and without base isolation) are considered with a 3 m high floor in the seismic zone V. The base isolator for both structures is designed to determine the stiffness and physical magnitudes of the lead rubber bearing core (LRB) specified at the base of the frame. The buildings were analyzed using nonlinear time history technique in ETABS. The effect of Base isolator is studied and building reactions like storey displacements, storey shear, storey drifts, and overturning moments can be seen in graphs. A general examination of G+8 and G+16 buildings with and without base isolator is watched.