Abstract: An earthquake is the shaking of the surface of the Earth, which may be dangerous enough to destroy major buildings and kill thousands of people. To protect the structures from earthquake effects there is a system known as base isolation systems. Base isolation is the technique is most widely accepted and used for seismic protection of the building in earthquake prone areas. The aim of this research is to study the mode period of different structures under fixed condition and base isolated condition. In this study, two building’s are considered first structure is G+13 storey building and second is G+5 storey building which is designed and analyzed in E TABS 13.2.1 software. Lead rubber isolator are provided to both the structures and then linear response spectrum and time history analysis are carried out for both fixed base and base isolated buildings under zone v and soil type II i.e. medium soil (according to IS 1893(part 1):2002). After analysis, the mode period, base shear, acceleration and displacement are compared for response spectrum and time history analysis for fixed base and base isolated buildings.
Keywords: Base isolation, response spectrum analysis, time history analysis, lead rubber bearing, E TABS.
Title: Seismic Analysis of Base Isolated Building in RC Framed Structures
Author: Anusha R Reddy, Dr. V Ramesh
International Journal of Civil and Structural Engineering Research
ISSN 2348-7607 (Online)
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