Effect of Seismic Zone on Retrofit of RC Framed Building using Base Isolation
Ravi Kumar Reddy Chapati1, Siva Kiran Kollimarla2, Srinivasulu Goli3, Jubeda Shaik4

1Ravi Kumar Reddy Chapati, Professor, Department of Civil Engineering, KHIT, Guntur (A.P), India.
2Mr. Siva Kiran Kollimarla, Assistant Professor, Civil Engineering, KHIT, Guntur, A.P India.
3Mr. Srinivasulu Goli, Assistant Professor, Department of Civil Engineering, KHIT, Guntur (A.P), India.
4Mrs. Jubeda Shaik, Post Graduate, Department of Civil Engineering, KHIT, Guntur (A.P), India.
Manuscript received on 02 May 2019 | Revised Manuscript received on 14 May 2019 | Manuscript Published on 28 May 2019 | PP: 456-460 | Volume-7 Issue-6C2 April 2019 | Retrieval Number: F10820476C219/2019©BEIESP
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© The Authors. Blue Eyes Intelligence Engineering and Sciences Publication (BEIESP). This is an open access article under the CC-BY-NC-ND license (http://creativecommons.org/licenses/by-nc-nd/4.0/)

Abstract: Base Isolation technique is introduced to historical buildings to decouple the building super structure from potential damage caused by earthquake ground motion, arresting the building superstructures from absorbing the energy due to earthquake. A Reinforced Cement Concrete (RCC) building with lead rubber bearing is introduced in this study. Two buildings were analyzed using a three dimensional response spectrum analysis which is carried out using commercially available software called SAP 2000 V19 to study the effect of base isolation technique on building with rubber bearing isolator. The objective is to provide a retrofitting for the RCC building by comparing a fixed base model(FBM) with a base isolated model(BIM) using lead rubber bearing (LRB) isolator subjected to strong earthquakes in different seismic zones to attain an optimal design of the base isolated model. It is observed that, base isolation technique substantially increase the time period of structure and correspondingly reduce the base shear compared to FBM system. The roof displacements for an isolated base is decreased compare to the FBM system.
Keywords: Base Isolation, Retrofit, Rubber Isolator, Bearing, Response Spectrum, Seismic Zones.
Scope of the Article: Building Energy