Seismic Assessment of RC Frames with Various Bracing Systems

S. K. Hirde, Shubham K. Nagmoti


Steel bracing is one of the best way for enhancing earthquake resistance of RC frames. Steel bracing is viable solution as a lateral load resisting system to improve seismal performance of RC frames as it is economical and has ability to meet required strength. IS 1893 (Part 1):2016 mentioned same response reduction factor (R factor) for all special braced frames (SBF) and also increased the value of R factor in recent revision. In this present study, R factor of RC frames with different bracing systems have been evaluated. The symmetrical four storey RC frames having three bays with X bracing, V bracing and chevron (inverted V) bracing have been modelled in SAP2000 as per IS codes. Pushover (nonlinear static) analysis is performed on the models and response reduction factor has been calculated by using static pushover curves obtained in SAP2000).

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M. R. Maheri, R. Kousri and M. Razazan, “Pushover tests on steel X-braced and knee-braced RC frames”, Engineering Structures, vol. 25, pp. 1697–1705, June 2003

Sachin Metre, Shivanand Ghule and Ravi Kiran, “Comparative Study of Different Types of Bracing Systems by Placing at Different Locations”, International Research Journal of Engineering and Technology, Vol. 4, Issue 8, August 2017

Rabindra Upreti and R. K. Mallik, “Effectiveness of Bracing on RC Moment Resisting Frame Building”, Proceedings of IOE Graduate Con-ference, Volume: 5 ISSN: 2350-8914, 2350-8906, 2017

Miranda Eduardo, “Site-Dependent Strength-Reduction Factors”, Journal of Structural Engineering, vol. 119 (12), pp. 3503-3519, 1993

Suchita K. Hirde and Deval S. Nakhate, “Seismic Response of Multistorey RC Frames”, International Journal of Engineering Technology Science nd Research, ISSN 2394-3386, Volume 5, Issue 3, March 2018

Patel Nirav and Vasanwala, Sandip A., “Evaluation of Response Reduc-tion Factor for Un-reinforced Masonry-Infilled RC Buildings”, Inovations in Infrastructure, Advances in Intelligent systems and Computing, 757, 525–535, 2018

C. V. R. Murty, Rupen Goswami, A. R. Vijayanarayanan and Vipul V. Mehta “Some Concepts in Earthquake Behaviour of Buildings”, Gujarat State Disaster Management Authority, Government of Gujarat, September 2012

Bureau of Indian Standards, ‘Criteria for Earthquake Resistant Design of Structures’, IS 1893 (Part I): 2016, New Delhi 11002, India, December 2016

Bureau of Indian Standards, ‘Plain and Reinforced Concrete - Code of Practice’, IS 456: 2000, New Delhi 11002, India, July 2000

Applied Technology Council, Federal Emergency Management Agency, ‘Quantification of Building Seismic Performance Factor ’, FEMA P695, Redwood City, California, June 2009

American Society of Civil Engineers, Federal Emergency Management Agency, ‘Prestandard and Commentary for the Seismic Rehabilitation of Buildings’, FEMA 356, Washington, DC, November 2000

Computers and Structures INC, ‘Steel Frame Design Manual IS 800:2007 for SAP2000’, USA, February 2017


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