Open Access Journal

ISSN : 2456-1290 (Online)

International Journal of Engineering Research in Computer Science and Engineering (IJERCSE)

Monthly Journal for Computer Science and Engineering

Open Access Journal

International Journal of Engineering Research in Mechanical and Civil Engineering (IJERMCE)

Monthly Journal for Mechanical and Civil Engineering

ISSN : 2456-1290 (Online)

Performance Analysis of Base Isolation & Fixed Base Buildings

Author : Amer Hassan 1 Shilpa Pal 2

Date of Publication :8th March 2017

Abstract: The aim of the seismic design is to protect the important building such as museums, hospitals, official buildings etc.., and reduce the damages after a seismic event. Many researchers have done a lot of research to get the best solutions to resist earthquakes and protect survival. One of those solutions is base isolation, the main goal of seismic isolation is to shift the fundamental frequency of a structure away from the dominant frequencies of earthquake ground motion and the fundamental frequency of the fixed base-superstructure, the other purpose of an isolation system is to provide an additional means of energy dissipation, thereby reducing the transmitted acceleration into the superstructure. In the present study, a five-story RCC building has been designed and analyzed according to IS Code for seismic analysis by (ETABS-2015) software using time history analysis, the study considered two models one of the models represents conventional building and the second model represents base isolation (BI) building. Results show that the model of base isolation reduces meaningfully the moment and shear produced for the same mode and hence reinforcement required is lesser compared with the fixed-base model, the results also show that the modal period increases in BI model subsequently, displacement is higher in this model than fixed base model because of flexibility of base isolation building.

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