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2014, 8(1): 1983-2002 |
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Khani S, Homami P. SEISMIC PERFORMANCE OF UNDERGROUND SHALLOW SUBWAY STATIONS IN SOFT SOIL. Journal of Engineering Geology 2014; 8 (1) :1983-2002
URL: http://jeg.khu.ac.ir/article-1-403-en.html
URL: http://jeg.khu.ac.ir/article-1-403-en.html
1- , homami@tmu.ac.ir
Abstract: (10134 Views)
In the recent years there was a great improvement in the development of underground structures. Due to the increase in the costs of constructions and the importance of the safety in transportation, attention has been focused on the hazards of earthquakes. In this paper, the effect of earthquakes and the importance of seismic analysis are described. The analysis method is presented briefly, and then the simplified analysis of Hashash et al. (2001) is used. Two metro station structures under two different seismic hazardlevels were analyzed. Pushover analysis method is also used which is a simple and static non-linear method in seismic analysis and design of structures. In this non-linear analysis, the target displacement is computed by the simplified frame analysis model. The finding of this study showed that the structure behavior was remained elastically to a large extent of displacement using this method. Hence, the design of the structures based on the performance level or reduction of the moment extracted from the Hashash et al. (2001) method is recommended.
Keywords: Underground structures, Pushover analysis, Subway station, Seismic design, Performance level
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