Title: Review of buckling restrained braces for earthquake resistant design of industrial structures in India
Authors: Bhavinkumar S. Shah; Vijay R. Panchal
Addresses: M.S. Patel Department of Civil Engineering, Chandubhai S. Patel Institute of Technology, Charotar University of Science and Technology (CHARUSAT), CHARUSAT Campus, Changa 388421, India ' M.S. Patel Department of Civil Engineering, Chandubhai S. Patel Institute of Technology, Charotar University of Science and Technology (CHARUSAT), CHARUSAT Campus, Changa 388421, India
Abstract: India had already witnessed devastating earthquakes in past and may witness even higher intensity of earthquakes in the future. The industrial structures are highly irregular structures and hence they are more vulnerable to earthquakes. The earthquake resistant design related codal provisions are revised recently in India. The conventional structural systems of moment resisting frame and conventional brace are not the most efficient systems for earthquake resistant design. In this paper, buckling restrained braces (BRB) are reviewed for the industrial structures in India. In the study, heavy silo supporting structure is analysed using conventional braces and BRBs. Total six nos. of analytical models are generated and response reduction factor are evaluated using pushover analysis. BRB is not yet codified in the Indian Standards. For implementation of the system in the country, codification is required for standardisation. The more research is required to eliminate the full scale testing requirements of BRB.
Keywords: buckling restrained braces; earthquake resistant design; industrial structures in India; seismic design; earthquake engineering; response reduction factor; retrofitting; India.
International Journal of Structural Engineering, 2022 Vol.12 No.1, pp.77 - 102
Received: 08 May 2020
Accepted: 10 Mar 2021
Published online: 30 Nov 2021 *