自锚式悬索桥的抗震性能影响研究
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摘要
以某自锚式悬索桥为例,建立了空间杆系有限元计算模型,研究了该桥在隔震前和隔震后的动力特性及地震响应特征.研究结果表明,隔震后结构自振周期明显增大,主塔处桥墩和加劲梁的内力减震效果非常显著,同时伴随着吊索索力增大.文章研究成果可供工程实践参考.
Taking a self-anchored suspension bridge as an example,a spatial finite element model with beam element is established in this paper.Seismic response and dynamic behavior of the bridge before isolation and after isolation are studied.A series of results can be obtained from this study: The natural vibration period of the bridge increases after isolation,and the effect of vibration reduction of the main pier and stiffening grider is obvious,however,the tension force of main cable increases after isolation.The study results of the paper may be used as a reference to engineer practice.
Taking a self-anchored suspension bridge as an example,a spatial finite element model with beam element is established in this paper.Seismic response and dynamic behavior of the bridge before isolation and after isolation are studied.A series of results can be obtained from this study: The natural vibration period of the bridge increases after isolation,and the effect of vibration reduction of the main pier and stiffening grider is obvious,however,the tension force of main cable increases after isolation.The study results of the paper may be used as a reference to engineer practice.
引文
[1]ZHANG Zhe.Self-anchored suspension bridge in reinforced concrete[M].Beijing:People’s Communication Press,2005.(inChinese)
[2]KAMEI M,MARUYAMA T,TANAKE H.Japan Konohaha Bridge[J].Structural Engineering International SEI,1992,2(1):142-149.
[3]JOHN A,OCHSENDORF P.Self-anchored suspension bridges[J].Journal of Bridge Engineering,1999,l4(3):150-155.
[4]KIM H K,LEE M J.Non-linear shape-finding analysis of a self-anchored suspension bridge[J].Engineering Structures,2002,12(24):1547-1559.
[5]KIM HK,LEE M J,CHANG S P.Determination of hanger installation procedure for a self-anchored suspension bridge[J].Engineering Structures,2006,28(7):959-976.
[6]FANG Hai,LIU Wei-qing,WANG Ren-gui,et al.Design method of energy-dissipating earthquake-reduction along longitudi-nal direction of self-anchored suspension bridge[J].Earthquake Engineering and Engineering Vibration,2006,26(4):220-225.(in Chinese)
[7]GUAN Zhong-guo,LI Jian-zhong,ZHUYu.Elastic-plastic energy dissipating bearing for seismic design of self-anchored sus-pension bridge with single tower[J].Journal of Tongji University,2009,37(1):6-12.(in Chinese)
[8]ZHOU Fu-lin.Seismic reduction control of engineering structure[M].Beijing:Seismological Press,1997.(in Chinese)
[9]JT/TB02-01-2008 Guidelines for seismic design of highway bridges[S].(in Chinese)
[1]张哲.混凝土自锚式悬索桥[M].北京:人民交通出版社,2005.
[6]方海,刘伟庆,王仁贵,等.铅阻尼器在自锚式悬索桥横向减震设计中的应用研究[J].地震工程与工程振动,2006,26(4):220-225.
[7]管仲国,李建中,朱宇.弹塑性阻尼支座用于自锚式悬索桥减震设计[J].同济大学学报,2009,37(1):6-12.
[8]周福霖.工程结构减震控制[M].北京:地震出版社,1997.
[9]JT/TB02-01-2008公路桥梁抗震细则[S].
[2]KAMEI M,MARUYAMA T,TANAKE H.Japan Konohaha Bridge[J].Structural Engineering International SEI,1992,2(1):142-149.
[3]JOHN A,OCHSENDORF P.Self-anchored suspension bridges[J].Journal of Bridge Engineering,1999,l4(3):150-155.
[4]KIM H K,LEE M J.Non-linear shape-finding analysis of a self-anchored suspension bridge[J].Engineering Structures,2002,12(24):1547-1559.
[5]KIM HK,LEE M J,CHANG S P.Determination of hanger installation procedure for a self-anchored suspension bridge[J].Engineering Structures,2006,28(7):959-976.
[6]FANG Hai,LIU Wei-qing,WANG Ren-gui,et al.Design method of energy-dissipating earthquake-reduction along longitudi-nal direction of self-anchored suspension bridge[J].Earthquake Engineering and Engineering Vibration,2006,26(4):220-225.(in Chinese)
[7]GUAN Zhong-guo,LI Jian-zhong,ZHUYu.Elastic-plastic energy dissipating bearing for seismic design of self-anchored sus-pension bridge with single tower[J].Journal of Tongji University,2009,37(1):6-12.(in Chinese)
[8]ZHOU Fu-lin.Seismic reduction control of engineering structure[M].Beijing:Seismological Press,1997.(in Chinese)
[9]JT/TB02-01-2008 Guidelines for seismic design of highway bridges[S].(in Chinese)
[1]张哲.混凝土自锚式悬索桥[M].北京:人民交通出版社,2005.
[6]方海,刘伟庆,王仁贵,等.铅阻尼器在自锚式悬索桥横向减震设计中的应用研究[J].地震工程与工程振动,2006,26(4):220-225.
[7]管仲国,李建中,朱宇.弹塑性阻尼支座用于自锚式悬索桥减震设计[J].同济大学学报,2009,37(1):6-12.
[8]周福霖.工程结构减震控制[M].北京:地震出版社,1997.
[9]JT/TB02-01-2008公路桥梁抗震细则[S].
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