Seismic Hazard Analysis of Andimeshk Territory and Determination of its Seismic Vulnerability
Subject Areas : Analysis of Structure and Earthquake
Mehdi Mahdavi Adeli
1
,
shahrokh tafi
2
1 - Department of Civil Engineering, Shoushtar
Branch, Islamic Azad University, Shoushtar
, Iran
2 -
Keywords: Earthquake, Vulnerability, Andimeshk, fault, Seismic Hazard,
Abstract :
As a key point in main roads and railways of country, Andimeshk city has always have strategic situation in Khuzestan province and even Iran. On the other hand, most evidences indicate that this city is located in seismic area and the incidence of a massive earthquake could impose huge losses on Iran economy. Considering this background, the aim of this study is to perform seismic hazard analysis in Andimeshk territory and precisely evaluate the vulnerability of the buildings and structures in this city. To this end, the extreme risk curve was obtained using probability analysis, then the buildings were investigated in four types in order to identify the vulnerability curves in three levels. By the combination of risk curve and vulnerability curves the rate of vulnerability of Andimeshk buildings can be evaluated quantitatively. The results of this study show that the seismic hazard level in Andimeshk city is relatively high and the base acceleration is equal to 0/325g and even more than the proposed rate in the standard 2800. Although there is no considerable concern regarding concrete buildings, the collapse of ancient and traditional buildings which are calculated 80 to 155 years is very challenging. In conclusion, the results indicate that a 20-year period might be suggested as a short chance to preserve the city.
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