| 斜拉桥主梁振动对拉索阻尼器减振效果的影响 |
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| 引用本文： | 梁栋,孙利民,程纬,黄洪葳.斜拉桥主梁振动对拉索阻尼器减振效果的影响[J].力学学报,2009,41(4):563-574. |
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| 作者姓名： | 梁栋 孙利民 程纬 黄洪葳 |
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| 作者单位： | 河北工业大学土木工程学院,300132同济大学土木工程防灾国家重点实验室同济大学土木工程防灾国家重点实验室同济大学土木工程防灾国家重点实验室 |
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| 基金项目： | 国家自然科学基金(50808063,50678123)资助项目~~ |
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| 摘 要： | 应用拉索索端阻尼器是大跨度斜拉桥拉索减振的主要措施之一. 将主梁、索与阻尼器组合起来作为一个振动体系，通过理论分析与试验研究相结合的方法初步研究了主梁振动对拉索附加阻尼器减振效果的影响. 建立了由索、梁和Kelvin阻尼器组成的简化理论模型; 设计了索、梁和阻尼器组合系统的简化力学试验模型; 详细研究了主梁振动对拉索附加阻尼器减振效果的影响. 理论与试验分析结果表明: 对于容易发生索、梁耦合振动的拉索，主梁振动明显降低拉索附加阻尼器的减振效果；在大跨度斜拉桥拉索的减振设计中，需考虑主梁参与振动的影响.
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| 关 键 词： | 斜拉桥 拉索减振 主梁振动 理论模型 试验研究 |
| 收稿时间： | 2008-04-10 |
EFFECT OF GIRDER'S VIBRATION ON PERFORMANCE OF CABLE DAMPERS FOR CABLE-STAYED BRIDGES |
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| Liang Dong
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Sun Limin
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Cheng Wei
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Huang Hongwei.EFFECT OF GIRDER'S VIBRATION ON PERFORMANCE OF CABLE DAMPERS FOR CABLE-STAYED BRIDGES[J].chinese journal of theoretical and applied mechanics,2009,41(4):563-574. |
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| Authors: | Liang Dong Sun Limin Cheng Wei Huang Hongwei |
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| Institution: | College of Civil Engineering, Hebei University of Technology, Tianjin, 300132, ChinaState Key Laboratory for Design Reduction in Civil Engineering, Tongji University, Shanghai, 200092, ChinaState Key Laboratory for Design Reduction in Civil Engineering, Tongji University, Shanghai, 200092, ChinaState Key Laboratory for Design Reduction in Civil Engineering, Tongji University, Shanghai, 200092, China |
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| Abstract: | With the span of cable-stayed bridge increasing,the stay cable becomes longer to obtain the close fundamental frequencies of bridge and cable,and to increase the probability of coupled vibration between cable and girder.Generally,the dynamic characteristics of long cable are determined by the interactions among pylon,cable and girder.One of the most effective vibration mitigation measures is to use mechanical damper for long stay cables of large span cable-stayed bridges.In the conventional design theory fo... |
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| Keywords: | cable-stayed bridge vibration mitigation of long stay cable effect of girder vibration theoretical analysis experiment |
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