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	Pushover analysis of underground structures:Method and application
	LIU JingBo ; WANG WenHui ; DASGUPTA Gautam ; LIU JingBo ; WANG WenHui ; DASGUPTA Gautam
	2016-03-30 ; 2016-03-30
关键词	underground structure pushover analysis seismic demand seismic damage assessment TU93 TU352.11
其他题名	Pushover analysis of underground structures:Method and application
中文摘要	Pushover analysis is common because of its conceptual simplicity and computational attractiveness in computing seismic demand.Considering that traditional pushover analysis is restricted in underground structures due to the stark differences in the seismic response characteristics of surface structures,this paper proposes a pushover analysis method for underground structures and its application in seismic damage assessment.First,three types of force distribution are presented based on ground response analysis.Next,the target displacements and analysis models are established according to force-based and performance-based design.Then,the pushover analysis procedure for underground structures is described.Next,the applicability of pushover analysis to underground structures is verified by comparing the responses of a Chongwenmen subway station determined by the proposed procedure and by nonlinear response history analysis.In addition,two other points are made:that the inverted triangular distribution of effective earthquake acceleration is more practical than the other two distributions,and that performance-based design is more effective than force-based design.Finally,a cyclic reversal loading pattern based on one cycle of reversal loads as an earthquake event is presented and applied to the seismic damage assessment of underground structures.The results show that the proposed pushover analysis can be effectively applied to the seismic design and damage assessment of underground structures.; Pushover analysis is common because of its conceptual simplicity and computational attractiveness in computing seismic de- mand. Considering that traditional pushover analysis is restricted in underground structures due to the stark differences in the seismic response characteristics of surface structures, this paper proposes a pushover analysis method for underground struc- tures and its application in seismic damage assessment. First, three types of force distribution are presented based on ground response analysis. Next, the target displacements and analysis models are established according to force-based and perfor- mance-based design. Then, the pushover analysis procedure for underground structures is described. Next, the applicability of pushover analysis to underground structures is verified by comparing the responses of a Chongwenmen subway station deter- mined by the proposed procedure and by nonlinear response history analysis. In addition, two other points are made: that the inverted triangular distribution of effective earthquake acceleration is more practical than the other two distributions, and that performance-based design is more effective than force-based design. Finally, a cyclic reversal loading pattern based on one cy- cle of reversal loads as an earthquake event is presented and applied to the seismic damage assessment of underground struc- tures. The results show that the proposed pushover analysis can be effectively applied to the seismic design and damage as- sessment of underground structures.
语种	英语 ; 英语
内容类型	期刊论文
源URL	[http://ir.lib.tsinghua.edu.cn/ir/item.do?handle=123456789/149113]
专题	清华大学
推荐引用方式 GB/T 7714	LIU JingBo,WANG WenHui,DASGUPTA Gautam,et al. Pushover analysis of underground structures:Method and application[J],2016, 2016.
APA	LIU JingBo,WANG WenHui,DASGUPTA Gautam,LIU JingBo,WANG WenHui,&DASGUPTA Gautam.(2016).Pushover analysis of underground structures:Method and application..
MLA	LIU JingBo,et al."Pushover analysis of underground structures:Method and application".(2016).

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