Authors: Bhushan M. Raisinghani; Sharadkumar Purohit
Addresses: Earthquake Resistant Design, Ahmedabad, 382481, India ' Civil Engineering Department, Institute of Technology, Nirma University, Ahmedabad, 382481, India
Abstract: Seismic engineering of structures is in discussion since decades while the aspects of risk mitigation and hazard assessment are relatively new in this field concerned with our preparedness for future events. With the advancement in knowledge and advent of performance-based design procedures, it has become possible to safeguard our interests against the fury of nature. In this paper, performance of a seven storey building is evaluated for different hazard levels expected in its lifetime. Four cases are considered for building representing: a) non-seismic code compliant building; b) designed for lateral loading pattern conforming to IS1893:2002; c) IS1893 draft code; d) EC8. The efficient design and detailing of building according to present code of practice is found to satisfy the Life Safety performance objective for the MCE level earthquake of 0.24 g. Non-structural damages is expected for the building under even the 0.1 g MCE level earthquake as the storey-drift exceeds the code limit. The performance of building is evaluated for extreme events at structure level and at non-structural level under each hazard level leading to notification of weaknesses in the structure with respect to the parameters of evaluation.
Keywords: performance-based design; PBD; seismic hazards; detailing; vulnerability; direct displacement-based design; DDBD; performance evaluation; building design; reinforced concrete buildings: seismic hazards; earthquakes; structural engineering; seismic engineering; high rise buildings; lateral loading patterns; building codes.
International Journal of Structural Engineering, 2016 Vol.7 No.4, pp.378 - 397
Received: 09 Jun 2015
Accepted: 27 Oct 2015
Published online: 16 Sep 2016 *