Pushover Analysis of Base Isolated RC Frame Buildings With Masonry Infills

Radhikesh Prasad Nanda and Subhrasmita Majumder
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Radhikesh Prasad Nanda: National Institute of Technology, Durgapur, India
Subhrasmita Majumder: National Institute of Technology, Durgapur, India

International Journal of Geotechnical Earthquake Engineering (IJGEE), 2019, vol. 10, issue 2, 18-31

Abstract: In the present article, the performance of base-isolated infilled frames is studied analytically. The seismic performances of four RC buildings, namely RC bare frame without isolator, RC bare frame with isolator, RC infilled frame without isolator, and RC infilled frame with isolator are analysed. The results show a decrease in base shear value and increase in time period due to base isolated buildings, while these parameters are reversely affected due to infills. The decrease in story drift for the base isolated buildings is in phase while considering infill. Also, it can be inferred that plastic hinge formation is greatly affected by the introduction of masonry infill. Hence, relying on base isolation without considering infills may underestimate the seismic performance.

Date: 2019
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