Frontiers of Structural and Civil Engineering
>> 2017,
Volume 11,
Issue 4
doi:
10.1007/s11709-017-0436-4
RESEARCH ARTICLE
Application of BCP-2007 and UBC-97 in seismic vulnerability assessment of gravity designed RC buildings in Pakistan
. School of Civil & Environmental Engineering, National University of Sciences & Technology, Islamabad, Pakistan.. Department of Civil Engineering, Abasyn University, Peshawar, Pakistan.. Mechanics Division, Faculty of Civil Engineering, Yildiz Technical University, Istanbul, Turkey
Accepted: 2017-07-07
Available online: 2017-11-10
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Abstract
Recent earthquakes in Pakistan (Kashmir 2005, Balochistan 2008, and Balochistan 2013) revealed the vulnerability of existing building stock and the deficiencies in the then prevalent Pakistan Seismic Code (PSC-86 (1986)). This study investigates, through an analytical framework, the seismic vulnerability of these and other such buildings, in accordance with the newly developed Building Code of Pakistan – Seismic Provisions 2007 (BCP-SP 07). Detailed failure mode is presented for buildings designed as per the new code. Collapse of structures is predicted for only 8% increase in PGA after moderate damage. A previously developed method, based on Eurocode-8 (2004), is used as baseline. A deficient reinforced concrete frame, typical to local building practices, is analyzed and assessed for vulnerability using the BCP- SP 07 (2007) framework. A comparison is drawn for the same building, based on Eurocode-8 (2004). Derived vulnerability curves show that the previous framework overestimated the damage and hence the vulnerability. Comparison of vulnerability parameters with previous studies show slight difference in performance of buildings.
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