| TMD对大跨钢管混凝土拱桥的减震性能研究 |
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| 引用本文： | 张达,王巾杰,石鲁宁,张恒通.TMD对大跨钢管混凝土拱桥的减震性能研究[J].土木工程学报,2012(Z2):68-71. |
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| 作者姓名： | 张达 王巾杰 石鲁宁 张恒通 |
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| 作者单位： | 北京工业大学工程抗震与结构诊治北京市重点实验室 |
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| 摘 要： | 以某单拱肋钢管混凝土拱桥为原型,通过Midas软件对其有限元模拟并进行动力分析得到该拱桥的动力特性。根据分析结果在主拱肋顶部拟安装TMD系统,分别按照主结构无阻尼和有阻尼两种情况研究该TMD最优参数的取值。对比布置所求参数的TMD前后该拱桥主拱圈顶部在三种不同地震波作用下的位移反应,分析该TMD装置对该拱桥的减震性能。
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| 关 键 词： | TMD 减震控制 钢管混凝土拱桥 |
Parameters study on the TMD damping properties of a large span concrete-filled steel tubular arch bridge |
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| Zhang Da Wang Jinjie Shi Luning Zhang Hengtong.Parameters study on the TMD damping properties of a large span concrete-filled steel tubular arch bridge[J].China Civil Engineering Journal,2012(Z2):68-71. |
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| Authors: | Zhang Da Wang Jinjie Shi Luning Zhang Hengtong |
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| Affiliation: | Zhang Da Wang Jinjie Shi Luning Zhang Hengtong (Beijing Laboratory of Earthquake Engineering and Structural Retrofit,Beijing University of Technology,Beijing 100124,China) |
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| Abstract: | A single rib concrete-filled steel tubular arch bridge is adopted while a TMD system is to be installed on top of the main arch rib according to the analyzing results of this prototype’s dynamic characteristics simulated with FEM software Midas.Researches on the optimal parameter values of the TMD are carried out respectively with and without the damping of the main structure.The performance of TMD on seismic control is analyzed based on the comparison of the displacements of the main arch bridge top under 3 different seismic loads between the original structure and the TMD-installed structure. |
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| Keywords: | TMD seismic control concrete-filled steel tubular arch bridge |
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