| 上承式拱桥横向结构减震分析 |
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| 引用本文： | 李逢宝,朱东生.上承式拱桥横向结构减震分析[J].重庆交通大学学报(自然科学版),2009,28(2):173-177,258. |
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| 作者姓名： | 李逢宝 朱东生 |
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| 作者单位： | 重庆交通大学,土木建筑学院,重庆,400074 |
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| 摘 要： | 以两座跨度不同上承式钢筋混凝土拱桥为例,利用ANSYS有限元分析功能,首先对它们进行了动力特性分析,并对结果进行了对比,得出了相应的结论;然后在原桥模型上加设横向阻尼支撑,采用三条地震记录,运用动态时程分析法进行了地震响应分析,结果表明横向阻尼支撑能显著减小拱平面外的地震反应。
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| 关 键 词： | 拱桥 地震响应 结构减震 阻尼器 |
Analysis on the Lateral Vibration Control of Top-Bear Arch Bridges |
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| LI Feng-bao,ZHU Dong-sheng.Analysis on the Lateral Vibration Control of Top-Bear Arch Bridges[J].Journal of Chongqing Jiaotong University,2009,28(2):173-177,258. |
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| Authors: | LI Feng-bao ZHU Dong-sheng |
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| Institution: | School of Civil Engineering & Architecture;Chongqing Jiaotong University;Chongqing 400074;China |
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| Abstract: | Taking two different span top-bear arch bridges as example,the dynamic characteristics of them are analyzed and then the results are compared by utilizing ANSYS program.Then lateral damping braces are set in two bridges,making use of three seismic records,the seismic response of bridges is analyzed by dynamic time history method.The results show that the lateral damping brace can remarkably decrease seismic response of the bridge in the lateral plane. |
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| Keywords: | arch bridge seismic response vibration control damper |
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