Probabilistic seismic hazard analysis of Islamabad, Pakistan

作者：Bhatti Abdul Qadir^*; Ul Hassan Syed Zamir; Rafi Zahid; Khatoon Zubeda; Ali Qurban

来源：Journal of Asian Earth Sciences, 2011, 42(3): 468-478.

DOI：10.1016/j.jseaes.2011.05.006

• Seismic hazard analysis
• Islamabad
• Short and one second spectral acceleration
• Main Boundary Thrust (MBT)

Pakistan is prone to seismic activity, and its capital, Islamabad, is located close to the Main Boundary Thrust (MBT) fault. On October 8th, 2005 the disastrous Muzaffarabad earthquake shook Islamabad and damaged many high-rise buildings. A probabilistic seismic hazard analysis technique was used to estimate strong ground motion parameters for a closely spaced 1 km grid. Traditionally, PGA is calculated, which is then used in structural earthquake resistant design or seismic safety assessment. However, Peak Ground Acceleration (PGA) is not sufficient to design for seismic load or to account for the modern building code's emphasis on the use of spectral acceleration values. Therefore, a seismic hazard analysis was performed for Islamabad, and the design parameters that are required by codes to account for seismic loading were derived.

• 出版日期2011-8-10