| 昆明东风路立交桥动载试验分析 |
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| 引用本文： | 马骏. 昆明东风路立交桥动载试验分析[J]. 公路交通科技, 2004, 21(3): 48-50,55 |
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| 作者姓名： | 马骏 |
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| 作者单位： | 重庆交通学院,重庆,400074 |
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| 摘 要： | 桥梁结构的动力特性(振型、频率和阻尼)是桥梁承载力评定的重要参数,同时也是识别桥梁结构工作性能和桥梁抗震分析的重要参数,本文通过昆明东风路立交桥的动载试验,分析桥梁在不同工况下动应变、动挠度、频率和阻尼以及影响实测冲击系数的原因。对全面地评价桥梁结构有重要意义。
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| 关 键 词： | 动力试验 振动频率 阻尼 冲击系数 |
| 文章编号： | 1002-0268(2004)03-0048-03 |
Dynamic Load Tests of Kun Ming Dong Feng Road Grade Separation Bridge |
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| MA Jun. Dynamic Load Tests of Kun Ming Dong Feng Road Grade Separation Bridge[J]. Journal of Highway and Transportation Research and Development, 2004, 21(3): 48-50,55 |
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| Authors: | MA Jun |
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| Abstract: | Dynamic character of bridge structure(frequency and damping)is an importance parameter to assess the bearing capacity of the bridge,and to identify important parameter of working capability and shock resistance analysis of bridge structure.Dynamic load tests were carried out to the Kun Ming Dong Feng road grade separation bridge.The dynamic strain and maximum dynamic formation under different cases as well as and coefficient of impact as natural frequencies and damping of the grade separation bridge were analyzed,and also the cause of influence on actual test coefficient of impact,important for assessing bridge structure.. |
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| Keywords: | Dynamic load tests Natural frequency Damping Coefficient of impact |
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