Experimental verification and study on influence of seismic wave parameters on seismic mitigation effect of base isolation system

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	Experimental verification and study on influence of seismic wave parameters on seismic mitigation effect of base isolation system
	Wu, Zhongtie 1; Fan, Pingping 2; Du, Yongfeng 3; Cheng, Xuansheng 3; Gao, Zhonghu 1
刊名	Tumu Gongcheng Xuebao/China Civil Engineering Journal
	2019-06-01
卷号	52 期号:6 页码:35-44 and 54
关键词	Correlation methods Degrees of freedom (mechanics) Dynamic response Numerical analysis Reliability analysis Seismic waves Base isolation systems Experimental verification Near fault ground motion Pulse-like ground motions Seismic mitigation Shaking table tests Single degree of freedoms Wave parameters
ISSN号	1000131X
英文摘要	In order to study the influence of seismic wave parameters on dynamic response and seismic mitigation effect of base isolation system, sixteen seismic waves were selected from chichi earthquakes as input and numerical analysis was conducted on the single degree of freedom (SDOF) base isolation system. The chosen influence parameters include the median period, the predominant period, the ratio of peek ground velocity to peek ground acceleration and rupture distance and amplitude of seismic waves. And the analysis results were verified by the shaking table test. The results indicate that the parameters of seismic waves, including the median period, the predominant period, the ratio of peek ground velocity to peek ground acceleration, rupture distance and amplitude of seismic waves, have a great influence on the dynamic response and seismic mitigation effect of base isolation system with strong correlations. The effect of the ratio of peek ground velocity to peek ground acceleration is most obvious under the same amplitude of seismic waves, so it can be determined as a main index to analyze the seismic mitigation effect of base isolation system. The seismic reduction ratio of base isolation system increases with the amplitude of seismic waves under the far fault ground motion and the near fault ground motion,and remains stable at the certain amplitude of seismic waves. Seismic mitigation effect of base isolation system is well. The seismic mitigation effect of base isolation system is worst under the near fault pulse-like ground motion. The numerical analysis results agree well with the experimental results, which proves the reasonability and reliability of the analysis results. © 2019, Editorial Office of China Civil Engineering Journal. All right reserved.
语种	中文
出版者	Chinese Society of Civil Engineering
内容类型	期刊论文
源URL	[http://ir.lut.edu.cn/handle/2XXMBERH/114762]
专题	土木工程学院
作者单位	1.Northwest Minzu University, Lanzhou; 730030, China; 2.Lanzhou Institute of Technology, Lanzhou; 730050, China; 3.Lanzhou University of Technology, Lanzhou; 730050, China
推荐引用方式 GB/T 7714	Wu, Zhongtie,Fan, Pingping,Du, Yongfeng,et al. Experimental verification and study on influence of seismic wave parameters on seismic mitigation effect of base isolation system[J]. Tumu Gongcheng Xuebao/China Civil Engineering Journal,2019,52(6):35-44 and 54.
APA	Wu, Zhongtie,Fan, Pingping,Du, Yongfeng,Cheng, Xuansheng,&Gao, Zhonghu.(2019).Experimental verification and study on influence of seismic wave parameters on seismic mitigation effect of base isolation system.Tumu Gongcheng Xuebao/China Civil Engineering Journal,52(6),35-44 and 54.
MLA	Wu, Zhongtie,et al."Experimental verification and study on influence of seismic wave parameters on seismic mitigation effect of base isolation system".Tumu Gongcheng Xuebao/China Civil Engineering Journal 52.6(2019):35-44 and 54.