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Comparative Seismic Analysis of Base Isolated and Fixed Based RC Frame Building

Author(s):

MOHAMMED IRFAN FARAAZ , P. D. A. College of Engineering; Amaresh S. Patil, P. D. A. College of Engineering

Keywords:

Base isolation, time history analysis, shear wall, Bhuj earthquake, ETABS

Abstract

Base isolation (BI) is a technique that has been used around the world to protect the building structures from the damaging effects of earthquake. The installation of isolator in building at base level significantly increases the time period of the structure, which means it reduces the possibility of resonance of the structure giving rise to better seismic performance of the building. The study is performed to compare the effectiveness of base isolation over the fixed based building and fixed based building with shear wall. For this study, 10 storied R.C frame building is considered and Time History analysis is carried out for Bhuj earthquake using ETABS 2015 software. The Lead Rubber Bearing (LRB) is designed as per UBC 97 code and the same was used for analysis of base isolation system. The results obtained from the analysis were time period, deflection and base shear. The models selected for analysis were fixed based building, fixed based building with shear wall and base isolated building.

Other Details

Paper ID: IJSRDV4I60565
Published in: Volume : 4, Issue : 6
Publication Date: 01/09/2016
Page(s): 974-978

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