地震波入射角对盆地地震反应影响的数值分析

Abstract
Figure/Table
References
Related Citation (15)

Download: PDF (3151 KB) HTML (1 KB)
Export: BibTeX | EndNote (RIS)

Abstract This article studies the impact of incident angle of seismic waves on the ground motion responses of basin by using two-dimensional nonlinear seismic response analysis program and Ricker wave(as incident SH wave) with different incident angles，PGAs and predominant frequencies. Research results are shown as follows：The maximum amplification ratio of the PGAs is not the one from vertically incident seismic waves，roughly between 5°～25°which suggests that the results may be conservative if only vertically incident angle of seismic waves is considered in seismic safety evaluation；meanwhile，a downward trend is observed in the peak value of response spectra with the increase of the incident angle；furthermore，the rise of predominant frequency of incident seismic waves shrinks the range of incident angle that has an effect on PGA；moreover，slope angle has an significant influence on the distribution pattern of PGA along the basin surface，with the growth of slope angle，the strongest response position shifts gradually from the edge to the center of basin.

Key words： numerical analysis seismic wave oblique incidence basin nonlinear seismic response

Received: 30 May 2013

	Service

	E-mail this article
	Add to my bookshelf
	Add to citation manager
	E-mail Alert
	RSS
	Articles by authors

Cite this article:

URL:

https://rockmech.whrsm.ac.cn/EN/Y2014/V33/IS1/2720

[1] CUBRINOVSKI M，GREEN R A. Geotechnical reconnaissance of the 2010 Darfield(New Zealand) earthquake[R]. New Zealand：the National Science Foundation-Sponsored Geotechnical Extreme Events Reconnaissance (GEER) Team，2010：180. [2] 兰景岩，吕跃军，刘红帅. 地震动强度及频谱特征对场地地震反应分析结果的影响[J]. 震灾防御技术，2012，7(1)：37–45.(LAN Jingyan，LU Yuejun，LIU Hongshuai. Effect of ground motion intensity and spectral characteristics on site seismic response[J]. Technology for Earthquake Disaster Prevention，2012，7(1)：37–45.(in Chinese)) [3] 李小军，彭青. 不同类别场地地震动参数的计算分析[J]. 地震工程与工程振动，2001，21(3)：29–36.(LI Xiaojun，PENG Qing. Analysis of ground motion parameters of different types of site[J]. Earthquake Engineering and Engineering Vibration，2001，21(3)：29–36.(in Chinese)) [4] 李小军，彭青，刘文忠. 设计地震动参数确定中的场地影响考虑[J]. 世界地震工程，2001，17(4)：34–41.(LI Xiaojun，PENG Qing，LIU Wenzhong. Effect of site condition on ground motion parameters[J]. World Earthquake Engineering，2001，17(4)：34–41.(in Chinese)) [5] 朱东生，虞庐松，陈兴冲. 地震动强度对场地地震反应的影响[J]. 世界地震工程，2005，21(2)：115–119.(ZHU Dongsheng，YU Lusong. CHEN Xingchong. Effect of ground motion intensity on site seismic response[J]. World Earthquake Engineering，2005，21(2)：115–119.(in Chinese)) [6] GELAGOTI F，KOURKOUFIS R，ANASTASOPOULOS I，et al. Dimensional analysis of trapezoidal valleys subjected to vertically propagating SV waves[J]. Bulletin of the Seismological Society of America，2012，102(3)：999–1017. [7] RASSEM M，GHOBARAH A，HELDEBRECHT A C. Engineering perspective for the seismic site response of alluvial valleys[J]. Earthquake Engineering and Structural Dynamics，1997，26(4)：477–493. [8] MAKRA K，FRANCISCO J. Chavez-Garcia，RAPTAKIS D，et al. Parametric analysis of the seismic response of a 2D sedimentary valley：implications for code implementations of complex site effects[J]. Soil Dynamics and Earthquake Engineering，2005，25(4)：303–315. [9] GATMIRI B，FOROUTAN T. New criteria on the filling ratio and impedance ratio effects in seismic response evaluation of the partial filled alluvial valleys[J]. Soil Dynamics and Earthquake Engineering，2012，41：89–101. [10] BARD P Y，BOUCHON M. The two-dimensional resonace of sediment-filled valleys[J]. Bulletin of the Seismological Society of America，1985，75(2)：519–541. [11] 兰景岩，薄景山，吕悦军. 剪切波速对设计反应谱的影响研究[J]. 震灾防御技术，2007，2(1)：19–24.(LAN Jingyan，BO Jingshan，LU Yuejun. Effect of sheer wave velocity on design response spectrum[J]. Technology for Earthquake Disaster Prevention，2007，2(1)：19–24.(in Chinese)) [12] 刘红帅，薄景山，吴兆营，等. 土体参数对地表加速度峰值和反应谱的影响[J]. 地震研究，2005，28(2)：167–171.(LIU Hongshuai，BO Jingshan，WU Zhaoying，et al. Effect of soil parameters on PGA and acceleration spectrum[J]. Earthquake Study，2005，28(2)：167–171.(in Chinese)) [13] 李媛媛，徐扬，李冬梅. 不同类别场地地震动反应分析[J]. 山西地震，2005，(4)：27–33.(LI Yuanyuan，XU Yang，LI Dongmei. Seismic response analysis to engineering sites[J]. Earthquake Research in Shanxi，2005，(4)：27–33.(in Chinese)) [14] 周锡元，徐渭，符圣聪. 地震工程概论[M]. 北京：科学出版社，1977：4–5.(ZHOU Xiyuan，XU Wei，FU Shengcong. Introduction to earthquake engineering[M]. Beijing：Science Press，1977：4–5.(in Chinese)) [15] 尤红兵，赵凤新，荣棉水. 地震波斜入射时水平层状场地的非线性地震反应[J]. 岩土工程学报，2009，31(2)：234–240.(YOU Hongbing，ZHAO Fengxin，RONG Jinshui. Nonlinear seismic response analysis of horizontally layered site under oblique incident seismic waves[J]. Journal of Geotechnical Engineering，2009，31(2)：234–240.(in Chinese)) [16] WILLIAM B，JOYNER A. Method for calculating nonlinear seismic response in two dimensions[J]. Bulletin of the Seismological Society of America，1975，65(5)：1 337–1 357. [17] 中华人民共和国国家标准编写组. GB17741—2005 工程场地地震安全性评价[S]. 北京：中国标准出版社，2005.(The National Standards Compilation Group of People?s Republic of China. GB 17741—2005 Seismic safety evaluation of engineering sites[S]. Beijing：Standards Press of China，2005.(in Chinese)) [18] 中华人民共和国国家标准编写组. GB50011—2001 建筑抗震设计规范[S]. 北京：中国建筑工业出版社，2001.( The National Standards Compilation Group of People?s Republic of China. GB50011—2001 Seismic design of buildings[S]. Beijing：China Building Industry Press，2001.(in Chinese))