| 中、下承式拱桥抗震性能分析 |
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| 引用本文： | 王艳,张广坡,陈淮.中、下承式拱桥抗震性能分析[J].世界地震工程,2010,26(4). |
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| 作者姓名： | 王艳 张广坡 陈淮 |
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| 作者单位： | 郑州大学土木工程学院,河南,郑州,450001 |
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| 基金项目： | 国家自然科学基金项目(50748028); 河南省杰出人才计划项目(084200510003) |
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| 摘 要： | 以下承式平行拱桥,下承式提篮拱桥和中、下承式斜靠式拱桥为研究对象,采用有限元程序Midas/civil建立3种桥型的空间有限元计算模型,计算其在El Centro波、Taft波地震波作用下的地震时程响应,对其进行抗震性能分析。计算结果表明:横向地震作用对3种拱桥的地震响应起控制作用;拱脚位置和横撑或横向联系处应作为拱桥抗震设计的控制截面,控制截面最大应力满足桥梁抗震性能要求,但平行式拱桥和斜靠式拱桥安全储备不充足,可采取一定的构造措施来保证其抗震安全性;提篮式拱桥主拱内倾和斜靠式拱桥稳定拱的设置对提高拱桥的横向抗震性能效果较为显著;提篮拱桥抗震性能优于平行式拱桥,斜靠式拱桥在横向地震下的拱顶横向位移最小,其抗震性能较好。
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| 关 键 词： | 中、下承式拱桥 抗震性能 有限元法 |
Aseismic performance analysis of half-through and through arch bridges |
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| WANG Yan,ZHANG Guangpo,CHEN Huai.Aseismic performance analysis of half-through and through arch bridges[J].World Information On Earthquake Engineering,2010,26(4). |
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| Authors: | WANG Yan ZHANG Guangpo CHEN Huai |
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| Institution: | WANG Yan,ZHANG Guangpo,CHEN Huai(School of Civil Engineering,Zhengzhou University,Zhengzhou 450001,China) |
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| Abstract: | The through parallel arch bridge,through X-style arch bridge and half-through and through double X-style arch bridges are taken as researched objects,the spatial finite element models of these three kinds of the arch bridges are established by finite element program Midas/civil to calculate the time-history response and analyze their aseismic performance under the El Centro and Taft earthquake waves.It is concluded that the seismic responses of the arch bridges is controlled by seismic action in the transve... |
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| Keywords: | half-through and through arch bridge aseismic performance finite element method |
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