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Seismic Hazard Analysis and Obtaining Uniform Hazard Spectra for Esfahan Region, Iran | ||
| Journal of Rehabilitation in Civil Engineering | ||
| مقاله 1، دوره 2، شماره 1 - شماره پیاپی 3، اردیبهشت 2014، صفحه 1-18 اصل مقاله (882.83 K) | ||
| نوع مقاله: Regular Paper | ||
| شناسه دیجیتال (DOI): 10.22075/jrce.2014.202 | ||
| نویسندگان | ||
| Seyed Ali Razavian Amrei* 1؛ Gholamreza Ghodrati Amiri2؛ Ehsan Khodadadi3 | ||
| 1Assistant Professor, Department of Civil Engineering, Payame Noor University, Tehran, Iran | ||
| 2Professor, Center of Excellence for Fundamental Studies in Structural Engineering, School of Civil Engineering, Iran University of Science & Technology, Tehran, Iran | ||
| 3M. Sc, Department of civil, Science and Research Branch Islamic Azad University, Tehran, Iran | ||
| تاریخ دریافت: 05 شهریور 1393، تاریخ بازنگری: 08 مرداد 1393، تاریخ پذیرش: 30 مهر 1393 | ||
| چکیده | ||
| The present study was conducted to determine peak ground acceleration (PGA) over bedrock in probabilistic analysis methods for the seismic hazard and uniform hazard spectra at different hazard levels for Esfahan city. A series of statistics containing historical and instrumental seismic data covering from the 8th century A.D. to the now up to a radius of 200 km was employed and seismic sources were modeled up to a radius of 200 km from Esfahan city. For this purpose the method proposed by Kijko (2000) was employed considering uncertainty in magnitude and incomplete earthquake catalogue. Seismic hazard analysis is then carried out for Esfahan city by using SEISRlSK III (Bender and Perkins, 1987) program for 11×13 grid points. Four different attenuation relationships of PGA and SA with logic tree were used to determine the PGA on bedrock. The PGA can be determined for 143 points and the hazard spectra can be specified for 20 points of the city. Covering %2 and %10 probability of exceedance in one life cycle of 50 years are presented. Finally, the uniform hazard spectra was also presented with %10 and %2 of probability of exceedance in one life cycles of 50 years are presented along with New Mark and Hall Spectra. | ||
| کلیدواژه‌ها | ||
| Uniform hazard spectra؛ Seismic hazard analysis؛ Seismicity parameters؛ PGA؛ Esfahan؛ Iran | ||
| مراجع | ||
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