Response spectra of base-isolated structures considering the effect of focal mechanism

doi:10.13465/j.cnki.jvs.2017.10.036

IR > 土木工程学院

	Response spectra of base-isolated structures considering the effect of focal mechanism
	Du, Yongfeng1,2 ; Hong, Na 1; Xu, Tianni 1; Xie, Li 1
	2017-05-28
发表期刊	Zhendong yu Chongji/Journal of Vibration and Shock
ISSN	10003835
卷号	36 期号:10 页码:224-231
摘要	The effect of focal mechanism on the response spectra of isolated structures was analysed by simplifying the base-isolated structure as a 2-DOF model. 605 earthquake records in the II site condition were selected as statistical samples. The records were divided into different groups according to the type of earthquake and focal mechanism. The accelerations, displacements and input energy response spectra under near-field and far-field ground motions were solved by using the state-space method. The features of the response spectra were studied by means of normalizing and averaging, and the expressions of design response spectra were established by using the piecewise linear fitting method. The expressions can reflect the influence of focal mechanism on response spectra, and were verified by comparing the seismic response of a real base-isolated structure with that from the design code. The results show that the formula proposed is more safe and reasonable, and can be used in the seismic design of base-isolated structures. © 2017, Editorial Office of Journal of Vibration and Shock. All right reserved.
关键词	Piecewise linear techniques Seismic design State space methods Base isolated structure Design response spectrum Far-field ground motion Focal mechanism Ground motions Isolated structures Piecewise linear fittings Response spectra
DOI	10.13465/j.cnki.jvs.2017.10.036
收录类别	EI
语种	中文
出版者	Chinese Vibration Engineering Society
EI入藏号	20173103998636
EI主题词	Earthquakes
EI分类号	408 Structural Design - 484 Seismology - 921 Mathematics - 921.4 Combinatorial Mathematics, Includes Graph Theory, Set Theory
来源库	Compendex
分类代码	408 Structural Design - 484 Seismology - 921 Mathematics - 921.4 Combinatorial Mathematics, Includes Graph Theory, Set Theory
引用统计	无
文献类型	期刊论文
条目标识符	https://ir.lut.edu.cn/handle/2XXMBERH/113989
专题	土木工程学院
作者单位	1.Institute of Earthquake Protection and Disaster Mitigation, Lanzhou University of Technology, Lanzhou; 730050, China; 2.Western Center of Disaster Mitigation in Civil Engineering of Ministry of Education, Lanzhou University of Technology, Lanzhou; 730050, China
第一作者单位	兰州理工大学; 土木工程学院
第一作者的第一单位	兰州理工大学
推荐引用方式 GB/T 7714	Du, Yongfeng,Hong, Na,Xu, Tianni,et al. Response spectra of base-isolated structures considering the effect of focal mechanism[J]. Zhendong yu Chongji/Journal of Vibration and Shock,2017,36(10):224-231.
APA	Du, Yongfeng,Hong, Na,Xu, Tianni,&Xie, Li.(2017).Response spectra of base-isolated structures considering the effect of focal mechanism.Zhendong yu Chongji/Journal of Vibration and Shock,36(10),224-231.
MLA	Du, Yongfeng,et al."Response spectra of base-isolated structures considering the effect of focal mechanism".Zhendong yu Chongji/Journal of Vibration and Shock 36.10(2017):224-231.