| 连续梁桥纵桥向位移需求的计算方法研究 |
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| 引用本文： | 金大勇,魏标,肖春. 连续梁桥纵桥向位移需求的计算方法研究[J]. 城市道桥与防洪, 2010, 0(3): 127-131 |
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| 作者姓名： | 金大勇 魏标 肖春 |
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| 作者单位： | 中国市政工程西南设计研究院,四川成都,610081;同济大学桥梁系,上海市,200092 |
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| 摘 要： | 该文在考虑连续梁桥滑动支座墩滑动摩擦效应的基础上,求出了全桥纵桥向的等效周期和等效阻尼比,将连续梁桥在纵桥向等效为单自由度体系。根据单自由度体系在地震作用下位移需求的计算方法,提出了连续梁桥在地震作用下位移需求的简化方法。最后给出了该方法的算例,并采用非线性时程分析进行了检验,结果表明简化方法有效。
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| 关 键 词： | 连续梁桥 地震响应 等效体系 位移需求 |
Study on Calculation Method of Longitudinal Displacement Demand of Continuous Beam Bridge |
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| Jin Dayong,Wei Biao,Xiao Chun. Study on Calculation Method of Longitudinal Displacement Demand of Continuous Beam Bridge[J]. Urban Roads Bridges & Flood Control, 2010, 0(3): 127-131 |
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| Authors: | Jin Dayong Wei Biao Xiao Chun |
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| Abstract: | On the basis of considering the gliding friction effect of continuous beam bridge gliding abutment pier,the article seeks the longitudinally equivalent cycle and equivalent damp ratio of the whole bridge,and makes the continuous beam bridge being the one degree of freedom system at the longitudinal effect of bridge.Based on the calculation method of displacement demand for one degree of freedom system under the earthquake action,the article puts forward the simplifying method of displacement demand for the ... |
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| Keywords: | continuous beam bridge earthquake response equivalent system displacement demand |
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