Vector-valued intensity measures for incremental dynamic analysis

doi:10.1016/j.soildyn.2017.06.014

	Vector-valued intensity measures for incremental dynamic analysis
	Zhou, Ying 2; Ge, Pinglan 3; Han, Jianping 1; Lu, Zheng 3
刊名	SOIL DYNAMICS AND EARTHQUAKE ENGINEERING
	2017-09
卷号	100 页码:380-388
关键词	Vector-valued Intensity measure Nonlinearity Higher mode effect Incremental dynamic analysis Efficiency
ISSN号	0267-7261
DOI	10.1016/j.soildyn.2017.06.014
英文摘要	In incremental dynamic analysis (IDA), use of an efficient intensity measure (IM) is of vital importance. Efficiency means good explanatory power of the IM in regard to specific engineering demand parameter (EDP) that can help reduce the number of records used to estimate response of structures under given accuracy. According to dimension of the parameters, intensity measures can be classified into scalar-valued IMs and vector-valued IMs. While scalar-valued IMs have been studied systematically, vector-valued IMs have not been investigated comprehensively. Besides, vector-valued IMs considering the effect of higher modes have not been proposed. Hence in order to provide a systematic investigation on vector-valued IMs, this paper proposes five vector-valued IMs with two considering higher mode effect and three incorporating period elongation effect. Then a low-rise and a middle-rise reinforced concrete frames are modeled and analysed by PERFORM-3D and IDA under fifteen suites ground motion records for each structure. To evaluate efficiency of the proposed IMs, residual sum of squares (RSS) and R-2 were calculated by logistic regression of IDA data. Results verified the better efficiency of vector-valued IMs than scalar-valued IMs. It is also proved that the relationship between IM and EDP can be expressed as a linear regression of logarithm for both scalar-valued IMs and vector-valued IMs. It turns out that a desirable IM should be selected based on the features of the specific structure. For structures dominated by the first mode, the impact of nonlinearity is of vital importance and should be mainly considered when choosing desirable IMs. Furthermore, for IMs considering nonlinearity effect, efficiency is relevant to the number of spectral acceleration incorporated; for IMs incorporating higher mode effect, the proposed multi valued IM is more efficient than the two-valued type.
资助项目	Natural Science Foundation of China[51322803] ; National Basic Research Program of China[2014CB049100] ; Shanghai Shu Gung Project[14SG19]
WOS研究方向	Engineering ; Geology
语种	英语
出版者	ELSEVIER SCI LTD
WOS记录号	WOS:000407655200032
状态	已发表
内容类型	期刊论文
源URL	[http://119.78.100.223/handle/2XXMBERH/33125]
专题	教务处（创新创业学院）
通讯作者	Lu, Zheng
作者单位	1.Lanzhou Univ Technol, Coll Civil Engn, Lanzhou, Gansu, Peoples R China 2.Tongji Univ, State Key Lab Disaster Reduct Civil Engn, Shanghai, Peoples R China 3.Tongji Univ, Coll Civil Engn, Shanghai, Peoples R China
推荐引用方式 GB/T 7714	Zhou, Ying,Ge, Pinglan,Han, Jianping,et al. Vector-valued intensity measures for incremental dynamic analysis[J]. SOIL DYNAMICS AND EARTHQUAKE ENGINEERING,2017,100:380-388.
APA	Zhou, Ying,Ge, Pinglan,Han, Jianping,&Lu, Zheng.(2017).Vector-valued intensity measures for incremental dynamic analysis.SOIL DYNAMICS AND EARTHQUAKE ENGINEERING,100,380-388.
MLA	Zhou, Ying,et al."Vector-valued intensity measures for incremental dynamic analysis".SOIL DYNAMICS AND EARTHQUAKE ENGINEERING 100(2017):380-388.