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

doi:10.13465/j.cnki.jvs.2017.10.036

CORC > 兰州理工大学 > 兰州理工大学 > 土木工程学院

	Response spectra of base-isolated structures considering the effect of focal mechanism
	Du, Yongfeng 1,2; Hong, Na 1; Xu, Tianni 1; Xie, Li 1
刊名	Zhendong yu Chongji/Journal of Vibration and Shock
	2017-05-28
卷号	36 期号:10 页码:224-231
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
ISSN号	10003835
DOI	10.13465/j.cnki.jvs.2017.10.036
英文摘要	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.
语种	中文
出版者	Chinese Vibration Engineering Society
内容类型	期刊论文
源URL	[http://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
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.