深水中大跨径斜拉桥地震响应分析
详细信息 本馆镜像全文    |  推荐本文 | | 获取馆网全文
摘要
本文以某斜拉桥为例,采用基于Morison方程的附加动水质量方法研究了动水压力对深水中大跨径斜拉桥地震响应的影响,并对中国、日本和欧洲规范中动水惯性系数的取值进行了对比研究。结果表明,在深水条件下应当考虑动水压力作用对结构地震响应的影响。对比日本和欧洲规范,我国规范中动水惯性系数取值偏低,动水压力的影响偏小。
A cable-stay bridge is taken as an example to analyze the effect of hydrodynamic pressure on seismic response of the bridge,which is built in deep water.Associated hydrodynamic mass method based on Morison equation is used in this paper.Comparative study on hydrodynamic inertia coefficient in specifications of China,Japan and Europe is performed.It is shown that hydrodynamic pressure should be considered when the bridge is built in deep water.Compared with specifications of Japan and Europe,the value of hydrodynamic inertia coefficient in our Chinese specification is relatively smaller than that of specifications of other countries mentioned above.
引文
房营光,孙均,1998.平台-群桩-水流-土体系统的地震反应分析.土木工程学报,31(5):56—63.
    高学奎,朱晞,2006.地震动水压力对深水桥墩的影响.北京交通大学学报,30(1):55—58.
    居荣初,曾心传,1983.弹性结构与液体的耦联振动理论.北京:地震出版社.
    李玉成,1990.波浪对海上建筑物的作用.北京:海洋出版社.
    刘正兴,孙雁,1995.流体介质中结构的动力特性及响应分析.上海交通大学学报,29(4):7—16.
    赖伟,王君杰,2004.地震下桥梁动水压力分析.同济大学学报,32(1):1—5.
    柳春光,齐念,2009.考虑流固耦合作用的深水桥墩地震响应分析.防灾减灾工程学报,29(4):433—436.
    中华人民共和国铁道部,2006.铁路工程抗震设计规范(GB 50111-2006).北京:中国计划出版社.
    日本道路协会,2002.道路橋示方書.同解説V耐震設計編.东京:丸善出版社.
    European Committee for Standardization,2005.Eurocode 8 Design of Structures for Earthquake Resistance Part 2:Bridges(EN1998-2-2005).London:British Standards Institution.

版权所有:© 2023 中国地质图书馆 中国地质调查局地学文献中心