| 匝道曲线梁桥自振特性分析与动力荷载试验 |
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| 引用本文： | 吕向明,李国宏.匝道曲线梁桥自振特性分析与动力荷载试验[J].城市道桥与防洪,2009(11):48-50. |
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| 作者姓名： | 吕向明 李国宏 |
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| 作者单位： | 1. 天水师范学院,甘肃,天水,741001
2. 中铁一局集团第二工程有限公司,陕西西安,710054 |
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| 摘 要： | 桥梁结构的自振特性是结构动力分析和抗震分析的重要参数。该文通过建立有限元模型进行模态分析和动荷载试验分析来获得梁拱组合桥的计算和实测自振特性,并测得了桥梁的自振频率、振型和阻尼比,并对实桥测试结果和计算分析结果进行了比较,得到该桥在动力荷载下的实际工作状态,以此判断该桥整体结构的安全承载能力和使用条件。
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| 关 键 词： | 匝道 梁拱组合体系桥 自振特性 有限元法 模态分析 |
Free vibration Characteristic Analysis and Dynamic Load Test of Ramp Curve Girder Bridge |
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| Lv Xiangming,Li Guohong.Free vibration Characteristic Analysis and Dynamic Load Test of Ramp Curve Girder Bridge[J].Urban Roads Bridges & Flood Control,2009(11):48-50. |
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| Authors: | Lv Xiangming Li Guohong |
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| Abstract: | The free vibration characteristic of bridge structure is the important parameter for the dynamic and seismic analysis of structure. In this paper, the finite element model is set up to carry out the modal analysis and the dynamic load test analysis to obtain the calculation and the measured free vibration characteristics of beamarch combined bridge, and to measure the free vibration frequency, type and damp ratio of bridge, and to compare the testing result with the calculation analyzing result of the bridg... |
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| Keywords: | ramp beam-arch combined bridge free vibration characteristic finite element method modal analysis |
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