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WANG Tong-ning, LIU Jian-xin, YU Yong-bo. Spatial dynamic analysis of isolated bridges subjected to near-fault ground motion[J]. Journal of Traffic and Transportation Engineering, 2009, 9(5): 20-25, 31. doi: 10.19818/j.cnki.1671-1637.2009.05.004
Citation: WANG Tong-ning, LIU Jian-xin, YU Yong-bo. Spatial dynamic analysis of isolated bridges subjected to near-fault ground motion[J]. Journal of Traffic and Transportation Engineering, 2009, 9(5): 20-25, 31. doi: 10.19818/j.cnki.1671-1637.2009.05.004
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Spatial dynamic analysis of isolated bridges subjected to near-fault ground motion

doi: 10.19818/j.cnki.1671-1637.2009.05.004
  • 1.

    School of Highway, Chang'an University, Xi'an 710064, Shaanxi, China

  • 2.

    Research Institute of Highway of Ministry of Transport, Beijing 100088, China

More Information
  • Author Bio:

    WANG Tong-ning(1977-), male, doctoral student, +86-29-82074872, rbstwtn@126.com

    LIU Jian-xin(1942-), male, professor, +86-29-82334835, ljx@gl.gfscw.cn

  • Received Date: 2009-07-16
  • Publish Date: 2009-10-25
    Abstract
  • With nonlinear dynamic time-history method, 3D dynamic responses of isolated bridge and non-isolated bridge were analyzed.Through comparing the dynamic responses of isolate bridge under the excitations of earthquakes with different frequency spectrums, the dynamic characteristic of isolated bridge was studied.Through comparing the longitudinal responses of isolated bridge with non-isolated bridge, the influence of near-fault ground motions on the seismic absorption ability of LRB(lead rubber bearing) was investigated.The result indicates that in contrast with common ground motion, the ratio of seismic absorption decreases from 54.4% to 18.3%, and the absorption effect of LRB reduces under near-fault ground motion.The longitudinal displacements of girders for isolated bridge and non-isolated bridge are 179.6 mm and 151.6 mm respectively.Obviously, LRB enlarges the displacement of girder and easily makes girder collide and fall, so LRB is not suitable isolated device for the bridges near fault area.

     

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    • References(13)
  • [1]
    YU Yan-xiang. Review of long-period ground motion study[J]. Recent Developments in World Seismology, 2007(7): 1-5. (in Chinese) http://www.cnki.com.cn/Article/CJFDTOTAL-GJZT200407000.htm
    [2]
    WU Di, LUO Qi-feng, LUO Yong-feng. Development of long-period seismic wave research[J]. Journal of Seismological Research, 2007, 30(3): 296-302. (in Chinese) doi: 10.3969/j.issn.1000-0666.2007.03.016
    [3]
    LI Shuang, XIE Li-li. Progress and trend on near-field prob-lems in civil engineering[J]. Acta Seismologica Sinica, 2007, 29(1): 102-111. (in Chinese) http://www.cnki.com.cn/Article/CJFDTOTAL-DZXB200701011.htm
    [4]
    LI U Qi-fang, YUAN Yi-fan, JI N Xing, et al. Basic charac-teristics of near-fault ground motion[J]. Earthquake Engineering and Engineering Vibration, 2006, 26(1): 1-10. (in Chinese) http://www.cnki.com.cn/Article/CJFDTOTAL-DGGC200601000.htm
    [5]
    LI Xin-le, DOU Hui-juan, PENG Yong-heng, et al. Research development on seismic design for bridge structure under near-fault earthquake[J]. Journal of Dalian Nationalities University, 2007(3): 57-59. (in Chinese) http://www.cnki.com.cn/Article/CJFDTOTAL-DLMY200703017.htm
    [6]
    LI AO Wen-i, LOH Chin-hsiung, WAN Shiuan. Responses of isolated bridges subjectedto near-fault ground motions[J]. Earthquake Engineering and Engineering Vibration, 2001, 21(4): 102-108. (in Chinese) http://www.cnki.com.cn/Article/CJFDTOTAL-DGGC2001S1013.htm
    [7]
    LI Shuang, XIE Li-li. Effects of near-field pulse-like groundmotions on reinforced concrete frame structures[J]. Journal of Shenyang Jianzhu University: Natural Science, 2006, 22(3): 406-410. (in Chinese) http://www.cnki.com.cn/Article/CJFDTOTAL-SYJZ200603013.htm
    [8]
    YANG Di-xiong, LI Gang, CHENG Geng-dong. Seismic response of base-isolated structure subjected to near-fault pulse-like ground motions[J]. Earthquake Engineering and Engineering Vibration, 2005, 25(2): 119-124. (in Chinese) http://www.cnki.com.cn/Article/CJFDTOTAL-DGGC20050200K.htm
    [9]
    NI Yong-jun, Zhu Xi. Analysis of acceleration peak ratios and response spectra for near-fault earthquakes[J]. Journal of Northern Jiaotong University, 2004, 28(4): 1-5. (in Chinese) http://www.cnki.com.cn/Article/CJFDTOTAL-BFJT200404001.htm
    [10]
    XUE Xiao-feng, HU Zhao-tong, LI U Jian-xin. Integrated isolation bearing of bridge[J]. Journal of Chang an University: Natural Science Edition, 2005, 25(1): 33-36. (in Chinese) http://www.cnki.com.cn/Article/CJFDTOTAL-XAGL200501008.htm
    [11]
    null(in Chinese)
    [12]
    LI UJian-xin, HU Zhao-tong, LI Zi-qing. Design method for seismic absorption of bridge structures[J]. China Journal of Highway and Transport, 2000, 13(2): 73-75, 79. (in Chinese) http://www.cnki.com.cn/Article/CJFDTOTAL-ZGGL200002017.htm
    [13]
    YU Yong-bo. 3-di mension dynamic analysis of isolation bridge and dynamic testing[D]. Xi an: Chang an University, 2004. (in Chinese)
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