jce.7.2.13425 Analysis of a Base Isolated Structure Ankit Gupta Vikas Tushamar Journal on Civil Engineering 2249-0779 7 2 27 33 Base Isolator, Time History Analysis, Fundamental Vibration Period, Rubber Bearing, Base Shear, Joint Displacement The destruction caused by an earthquake is highly unpredictable and sometimes beyond repair. Using Innovative methods of seismic analysis of structures, it is possible to minimize and reduce the effect caused by it. Earthquake resistant buildings can be designed and detailed so that they can withstand the seismic forces, but economics have restricted builders from using these new technologies. However, in recent years research plays an important on use of Seismic isolators, in which energy is limited by using energy absorbing or dissipating devices. Base isolation is an approach to earthquake-resistant design that is based on the concept of reducing the seismic demand rather than increasing the earthquake resistance capacity of structure. In this paper, the authors have discussed the overview of structure with and without base isolator and their effects using Elastomeric rubber bearing with the help of SAP 2000 version 12 using time history analysis by taking fundamental vibration period of 2s, 3s, and 4s for the soil conditions of rock and soft soil. In the analysis, effect of joint displacement and base shear on structure with and without isolator is discussed and compared. March-May 2017 Copyright © 2017 i-manager publications. All rights reserved. i-manager Publications http://www.imanagerpublications.com/Article.aspx?ArticleId=13425