Comparative and parametric study of base isolated structure

Abstract

For the development of better design approach to protect the structures from earthquake damage, base isolation, to reduce the seismic energy impacting on the structure has represented a change of paradigm since it came into the fore. Base isolation technique is most suitable for high rise building, the concept of base isolation is simple, it modifies the response of the building so that the ground can move below the structure without transmitting these motion into the building, seeing the growth of such technology it became necessary to asses the general and seismic response of such structure. The present study focuses on the comparative performance of two frame of different material properties consisting base isolator, which is performed under seismic condition. The base isolation system that is utilized is composed of  Rubber isolators. To reach the understanding of this  fixed-base and base  isolated structure the seismic analysis have performed on two types of structure and the responses are calculated considering different seismic zone. Thus, this paper aimed to compare the responses of simple rcc structure and steel structure due to Indian loadings and seismic zone variations Additionally  the structures are analysed and compared using elcentro earthquake data for assement of responses like interstorey drifts, displacement and base shear.