Seismic Vulnerability of Existing Building Stock in Pakistan

Abstract eng:
Seismic vulnerability is a crucial aspect in the earthquake risk assessment. The detailed survey of damage cases observed in the aftermath of the 7.6 Mw Kashmir Earthquake of October 8, 2005 provides the opportunity to test the vulnerability of the building stock in Pakistan. The survey helps to use GIS-based seismic risk assessment tools and to examine their applicability to earthquake regions of Pakistan. The building stock is reconstructed based on a quick field survey immediately after the earthquake in 2005, a survey after two years in 2007 and also based on interviews with inhabitants, carried out after the earthquake. Typical building types in Pakistan are defined and compared to the standard construction types of the European Macroseismic Scale-98 (EMS-98). The differences in the vulnerabilities of the standard construction types are evaluated resulting in the correction of the vulnerability classes of the EMS-98 for the respective construction types. In the end, damage prognosis at micro level for the city of Muzaffarabad is given, as a test area, by considering the vulnerability of the building stock.

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