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	考虑双向地震作用的组合刚构桥抗震性能研究
	樊健生 ; 刘晓刚 ; 李果 ; 李全旺 ; 聂建国 ; FAN Jian-sheng ; LIU Xiao-gang ; LI Guo ; LI Quan-wang ; NIE Jian-guo
	2016-03-30 ; 2016-03-30
关键词	组合刚构桥 双向地震 静力弹塑性分析 时程分析 composite rigid frame bridge bidirectional seismic excitations pushover analysis time history analysis U448.23 U442.55
其他题名	Seismic performance investigation of composite rigid frame bridge under bi-directional seismic excitations
中文摘要	以采用钢筋混凝土桥墩和钢-混凝土组合梁的组合刚构桥为研究对象,在OpenSees平台上对组合刚构桥分别进行了横桥向和顺桥向静力弹塑性分析和时程分析,评价了按一阶模态荷载进行静力弹塑性分析的适用性,提出了可以考虑高阶振型影响的静力弹塑性分析方法,并分析了该方法对组合刚构桥横桥向和顺桥向的适用性。在此基础之上,考虑双向地震作用影响对弹塑性需求曲线进行折减,提出了预测组合刚构桥在任意方向输入的水平双向地震作用下位移响应的静力弹塑性分析方法,分析结果表明该方法有足够的保证率。; The pushover analysis and time history analysis of a steel-concrete composite rigid frame bridge which is composed of RC piers and steel-concrete composite beams was conducted in the longitudinal and transverse directions of bridge by using the platform of OpenSees,and the applicability of pushover analysis on the the bridge under first modal load was discussed as well. Besides,a new pushover analysis method which can consider the contribution of higher modes of vibration was proposed,and the applicability of this method in analysing the vibration in transverse and longitudinal directions of the composite rigid frame bridge was also concerned. On this basis,a reduction coefficient of elas-to-plastic demand curve which can consider the influence of bidirectional seismic excitations was proposed,and a new pushover analysis method to predict the largest displacement of composite rigid frame bridges under bi-directional seismic excitations was proposed as well. It is also confirmed that the method is conservative.
语种	中文 ; 中文
内容类型	期刊论文
源URL	[http://ir.lib.tsinghua.edu.cn/ir/item.do?handle=123456789/149012]
专题	清华大学
推荐引用方式 GB/T 7714	樊健生,刘晓刚,李果,等. 考虑双向地震作用的组合刚构桥抗震性能研究[J],2016, 2016.
APA	樊健生.,刘晓刚.,李果.,李全旺.,聂建国.,...&NIE Jian-guo.(2016).考虑双向地震作用的组合刚构桥抗震性能研究..
MLA	樊健生,et al."考虑双向地震作用的组合刚构桥抗震性能研究".(2016).

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