Collapse ratios of buildings due to the 1995 Kobe earthquake and;interference between S-wave and the second surface wave at basin edge

doi:10.1360/03wd0193

	Collapse ratios of buildings due to the 1995 Kobe earthquake and;interference between S-wave and the second surface wave at basin edge
	Zhao, ZX 4; Xu, JR ; Kubota, F ; Yasuhiko, W ; Syozo, K
刊名	CHINESE SCIENCE BULLETIN
	2004
卷号	49 期号:2 页码:189-195
关键词	numerical simulation collapse ratios of buildings interference of wave seismic wave acceleration velocity structure
ISSN号	1001-6538
DOI	10.1360/03wd0193
英文摘要	The distribution characteristics of collapse ratios of buildings in Kobe city due to the 1995 M7.2 Hyogo-ken Nanbu, Japan (Kobe) earthquake and the interferences due to SH or P-SV and the second surface waves propagating in heterogeneous medium are discussed in this paper by using numerical simulation technique of wave equation. The staggered grid real value fast Fourier transform differentiation (SGRFFTD) is used in the pseudospectral method of ground motion simulations because of its speed, high stability and accuracy. The results show that the maximum amplitude of simulated acceleration waveforms on the ground coincides well with the complicated distributions of collapse ratios of buildings. The peak collapse ratio of buildings away from the earthquake fault also coincides well with the peak ground acceleration. The spatial interference process is analyzed by using the snap shots of seismic wave propagation. The peak ground acceleration is probably caused by the interferences due to the second surface wave transmitting from the bedrock to sedimentary basin and the upward body wave. Analyses of the interference process show that seismic velocity structure and geologic structure strongly influence the distribution of the maximum amplitude of acceleration waveforms. Interferences occurring near the basin boundary are probably the cause of the peak collapse ratio of buildings away from the fault. Therefore it is necessary to analyze wave propagations and interference process using numerical simulation strategy for studies on the seismic disasters.
学科主题	固体地球物理学
WOS关键词	GROUND-MOTION ; PSEUDOSPECTRAL METHOD ; PROPAGATION ; JAPAN
WOS研究方向	Science & Technology - Other Topics
语种	英语
出版者	SCIENCE CHINA PRESS
WOS记录号	WOS:000220239800014
内容类型	期刊论文
源URL	[http://119.78.100.197/handle/2HKVOGP0/37796]
专题	中国地质科学院地质研究所
作者单位	1.Chinese Acad Geol Sci, Inst Geol, Beijing 100037, Peoples R China. 2.Kawasaki Geol Engn Co Ltd, Minato Ku, Tokyo 1088337, Japan. 3.Independent Adm Inst Publ Works Res Inst, Tsukuba, Ibaraki 3058516, Japan. 4.中国地质科学院地质研究所
推荐引用方式 GB/T 7714	Zhao, ZX,Xu, JR,Kubota, F,et al. Collapse ratios of buildings due to the 1995 Kobe earthquake and;interference between S-wave and the second surface wave at basin edge[J]. CHINESE SCIENCE BULLETIN,2004,49(2):189-195.
APA	Zhao, ZX,Xu, JR,Kubota, F,Yasuhiko, W,&Syozo, K.(2004).Collapse ratios of buildings due to the 1995 Kobe earthquake and;interference between S-wave and the second surface wave at basin edge.CHINESE SCIENCE BULLETIN,49(2),189-195.
MLA	Zhao, ZX,et al."Collapse ratios of buildings due to the 1995 Kobe earthquake and;interference between S-wave and the second surface wave at basin edge".CHINESE SCIENCE BULLETIN 49.2(2004):189-195.