Effects of spatial variable ground motions on the seismic response of base-isolated building

doi:10.4028/www.scientific.net/AMR.163-167.4422

CORC > 兰州理工大学 > 兰州理工大学

	Effects of spatial variable ground motions on the seismic response of base-isolated building
	Lei, Yongqin 1,2; Du, Yongfeng 1,2
	2011
会议日期	January 7, 2011 - January 9, 2011
会议地点	Guangzhou, China
关键词	Building materials Concrete bridges Construction equipment Earthquakes Nonlinear analysis Seismic response Soil structure interactions Base-isolated building Base-isolated structures Earthquake ground motions Ground motions Incoherence effect Isolated buildings Mitigation effects Multicomponents Nonlinear time history analysis Nonuniform Response spectra Spatial variability Spatial variables Spectral representations Time history Time history analysis Uniform excitation Wave passage effect
卷号	163-167
DOI	10.4028/www.scientific.net/AMR.163-167.4422
页码	4422-4428
英文摘要	Aimed to base-isolated building with large plane dimension, the change laws of seismic response for base-isolated building under spatial variable ground motions were researched. Firstly, the artificial spatial variable earthquake time histories were generated using spectral representation method based on code response spectrum. Then the 3-D FEM modal of one based-isolated building with large plane dimension was established and the seismic response of based-isolated building under spatially ground motion was studied by nonlinear time history analysis. The mitigation effects of based-isolated building with large plane dimension were compared each other at the cases of uniform excitation, non-uniform excitation considering only wave passage effect, non-uniform excitation considering both the wave passage effect and incoherence effect, multi-component uniform excitation, multi-component non-uniform excitation considering the wave passage effect and multi-component non-uniform excitation considering both the wave passage effect and incoherence effect. The results show that the seismic response of base-isolated structure with large plane dimension under the uniform excitation is relative safety. When the base-isolated building with large plane dimension is designed by time history analysis, the spatial variability of earthquake ground motion effects can be considered. © (2011) Trans Tech Publications.
会议录	Advanced Materials Research
会议录出版者	Trans Tech Publications, P.O. Box 1254, Clausthal-Zellerfeld, D-38670, Germany
语种	英语
ISSN号	10226680
内容类型	会议论文
源URL	[http://ir.lut.edu.cn/handle/2XXMBERH/115895]
专题	兰州理工大学
作者单位	1.Northwest Center for Disaster Mitigation in Civil Engineering, Lanzhou Univ. of Tech., Ministry of Education, Lanzhou. 730050, China; 2.Institute of Earthquake Protection and Disaster Mitigation, Lanzhou Univ. of Tech., Lanzhou. 730050, China
推荐引用方式 GB/T 7714	Lei, Yongqin,Du, Yongfeng. Effects of spatial variable ground motions on the seismic response of base-isolated building[C]. 见:. Guangzhou, China. January 7, 2011 - January 9, 2011.