• Mrudula M. Kale
• Sunil M. Rangari

A large proportion of world’s population lives in regions of seismic hazards, at risk from earthquakes of varying severity and frequency of occurrence. To reduce the damage caused due to earthquake on building, seismic isolation is one of the best technical advantages used now days. Mid-storey isolation is a new technique of seismic isolation which was invented for strengthening of old weak structures to withstand seismic activities. The method is preferred over other strengthening methods due to cost effectiveness and efficiency of results. The purpose of this study is to find the performance of a 15 storey RCC building in terms of storey displacement, storey drift, storey acceleration, storey shear, base shear and time period when seismic isolators are installed at two different levels. One isolator would be at the base and the second isolator would be variable with 3 storey interval and the optimum position for using the second isolator would be found out in the study. In the present study two similar 15 storey RCC buildings have been analyzed using response spectrum method i.e. linear static analysis. One of the buildings is fixed at its base and the other one is installed with a lead rubber isolator at its base. The analysis is carried out using ETABS 16.2.1 a product of Computers and Structures, Inc.

storey isolation, base isolation, response spectrum analysis, time period, storey displacement, storey acceleration.

"PERFORMANCE OF RCC BUILDING UNDER DIFFERENT SEISMIC ISOLATION LEVELS", International Journal of Emerging Technologies and Innovative Research (www.jetir.org), ISSN:2349-5162, Vol.6, Issue 3, page no.195-199, March-2019, Available :http://www.jetir.org/papers/JETIRAS06033.pdf

"PERFORMANCE OF RCC BUILDING UNDER DIFFERENT SEISMIC ISOLATION LEVELS", International Journal of Emerging Technologies and Innovative Research (www.jetir.org | UGC and issn Approved), ISSN:2349-5162, Vol.6, Issue 3, page no. pp195-199, March-2019, Available at : http://www.jetir.org/papers/JETIRAS06033.pdf