| 中承式钢管混凝土拱桥动力特性分析 |
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| 引用本文： | 蒋月琴.中承式钢管混凝土拱桥动力特性分析[J].交通与计算机,2009,27(5):170-172. |
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| 作者姓名： | 蒋月琴 |
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| 作者单位： | 金华市市政管理处,浙江,金华,321000 |
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| 摘 要： | 结合实例，建立了金华双龙大桥主桥——168m中承式钢管混凝土拱桥有限元模型，经试验模态分析获得该桥的计算和实测自振特性参数。将实桥测试结果与计算分析结果进行比较，获得了大桥的固有频率、模态和冲击系数。根据该桥在动力荷载下的实际工作状态，给出了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： | 钢管混凝土拱桥 动力特性 模态分析 冲击系数 |
Dynamic Characteristics of Semi-supported CFST Arch Bridge |
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| JIANG Yueqin.Dynamic Characteristics of Semi-supported CFST Arch Bridge[J].Computer and Communications,2009,27(5):170-172. |
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| Authors: | JIANG Yueqin |
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| Institution: | Jinhua Municipal Management Bureau;Jinhua 321000;Zhejiang;China |
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| Abstract: | The self-vibration parameters for the Shuanglong Bridge,which is a concrete-filled steel tubular arch bridge in Jinhua City,were obtained by means of the finite element model and the experimental simulation.The inherent frequency,mode,damp ratio and impact coefficient of the bridge were obtained by comparing the actual test results with the simulated results.This paper also studied the real-time behavior of the bridge under dynamic loads and judges its maximum load-carrying ability and normal working condit... |
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| Keywords: | CFST arch bridge dynamic characteristics modal analysis impact coefficient |
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