| 粘滞阻尼器参数对大跨度桥梁抗震性能影响研究 |
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| 引用本文： | 方志,王飞,张志田,王成启,丁望星.粘滞阻尼器参数对大跨度桥梁抗震性能影响研究[J].公路交通科技,2009,26(2). |
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| 作者姓名： | 方志 王飞 张志田 王成启 丁望星 |
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| 作者单位： | 1. 湖南大学,土木工程学院,湖南,长沙,410082
2. 湖北省交通规划设计院,湖北,武汉,430051 |
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| 摘 要： | 基于流体粘滞阻尼器的力学特性，以荆岳长江大桥为工程背景，研究了附加非线性粘滞阻尼器对大跨度桥梁抗震性能的影响。利用动力非线性时程分析方法，对非线性粘滞阻尼器的阻尼系数和阻尼指数进行了参数敏感性分析，讨论了阻尼器布置位置对减震效果的影响，并与不设阻尼器情况的地震响应结果进行了比较。分析表明：通过在适当的位置设置纵向粘滞阻尼器，可以有效地降低结构在地震作用下关键部位的位移，改善结构构件的地震力；减震效果取决于阻尼器参数；同时，设置阻尼器避免了相邻主梁可能发生碰撞引起的结构损坏。
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| 关 键 词： | 桥梁工程 大跨度桥梁 抗震性能 敏感性分析 粘滞阻尼器 |
Effects of Viscous Damper Parameters on Anti-seismic Performance of Long-span Bridge |
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| FNAG Zhi,WANG Fei,ZHANG Zhitian,WANG Chengqi,DING Wangxing.Effects of Viscous Damper Parameters on Anti-seismic Performance of Long-span Bridge[J].Journal of Highway and Transportation Research and Development,2009,26(2). |
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| Authors: | FNAG Zhi WANG Fei ZHANG Zhitian WANG Chengqi DING Wangxing |
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| Affiliation: | 1.School of Civil Engineering;Hunan University;Changsha Hunan 410082;China;2.Hubei Provincial Communications Planning and Design Institute;Wuhan Hubei 430051;China |
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| Abstract: | Based on the mechanical characteristics of fluid viscous damper,the anti-seismic performance of the long-span bridge with non-linear viscous dampers was investigated.Taking Jingyue Yangtze River Bridge for example,the sensitivity analysis on damping coefficient C and damping exponent of viscous damper was performed using non-linear dynamic time-history method,and the effect of seismic response control on viscous dampers placed in different positions was discussed.It indicates that(1) setting dampers in long... |
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| Keywords: | bridge engineering long-span bridge anti-seismic performance sensitivity analysis viscous damper |
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