سبد خرید

Evaluation of Horizontal Seismic Hazard of ABADE, Iran

تومان

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This paper presents probabilistic horizontal seismic hazard assessment of Abade, Iran. It displays the probabilistic estimate of Peak  Ground Horizontal Acceleration (PGHA) for the return period of 475 and 2475 years. The output of the probabilistic seismic hazard  analysis is based on peak ground acceleration (PGA), which is the most common criterion in designing of buildings. A catalogue of  seismic events that includes both historical and instrumental events was developed and covering the period from 840 to 2007 is used.  he seismic sources that affect the hazard in Abade were identified within the radius of 150 km and the recurrence relationships  of these sources were generated by Kijko and Sellevoll [2000]. Finally four maps have been prepared to indicate the earthquake  hazard of Abade in the form of iso-acceleration contour lines for different hazard levels by using SEISRISK III

تعداد:
مقایسه

ABSTRACT

This paper presents probabilistic horizontal seismic hazard assessment of Abade, Iran. It displays the probabilistic estimate of Peak  Ground Horizontal Acceleration (PGHA) for the return period of 475 and 2475 years. The output of the probabilistic seismic hazard  analysis is based on peak ground acceleration (PGA), which is the most common criterion in designing of buildings. A catalogue of  seismic events that includes both historical and instrumental events was developed and covering the period from 840 to 2007 is used.  he seismic sources that affect the hazard in Abade were identified within the radius of 150 km and the recurrence relationships  of these sources were generated by Kijko and Sellevoll [2000]. Finally four maps have been prepared to indicate the earthquake  hazard of Abade in the form of iso-acceleration contour lines for different hazard levels by using SEISRISK III.

INTRODUCTION

Iran, one of the most seismic countries of the world, is situated over the Himalayan-Alpied seismic belt. Abade with the exceeding 200  thousands of people located in the west of Iran, very close to shiraz. In order to be the province center need a very precise  investigation of seismicity and seismic hazard. This paper presents probabilistic horizontal seismic hazard assessment of Abade.Abade is  ituated on the west plateau of central Zagros Mountain. In order to evaluate the seismic hazard of a region or zone, all the probable  eismic sources must be detected and their potential to produce strong ground motion must be checked . The major faults  in Abade region are Zagros, Dena, Shahrebabak, Kazerun, Dehshir, South Rokh, Dopolan and Zardkooh. The location of these faults  to Abade is shown in Figure  respectively. The seismicity of each region is indicated by the past earthquakes occurred in that region  and to obtain the seismotectonic properties, a thorough list of each region’s earthquake events must be collected and studied. The list  f occurred earthquakes in a radius of 150 km around Abade is given in Table 1, in the end of paper. The evaluation of seismicity  parameters is performed based on the seismic data of earthquakes occurred in the region under study and applying probabilistic  methods. The seismic catalogue has been collected, assuming that earthquakes follow Poisson distribution. The method which is used  to eliminate the foreshocks and aftershocks is the variable windowing method in time and space domains.

Year: 2011

Publisher : Sixth National Congress on Civil Engineering

By : Mehran Koohi , Keyvan Mosayebi , Hossein Kheirkhah , Mohamad Mohamadi

File Information: English Language/ 8 Page / size: 971 KB

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سال : 1390

ناشر : ششمین کنـگره ملی مهنـدسی عمـران

کاری از : مهران کوهی، کیوان موسوی، حسین خیرخواه، محمد محمدی

اطلاعات فایل : زبان انگلیسی / 8 صفحه / حجم : KB 971

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