| 桥梁损伤的移动质量多次测量检测法 |
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| 引用本文： | 李大军,霍达,韩强.桥梁损伤的移动质量多次测量检测法[J].华南理工大学学报(自然科学版),2005,33(4):50-52,78. |
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| 作者姓名： | 李大军 霍达 韩强 |
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| 作者单位： | 1. 北京工业大学,建筑工程学院,北京,100022
2. 华南理工大学,交通学院,广东,广州,510640 |
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| 基金项目： | 国家自然科学基金资助项目 (50378007)，北京市自然科学基金重点项目(8031001) |
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| 摘 要： | 提出了一种新的桥梁损伤检测方法．该方法采用移动质量块在不同位置对桥梁进行多次测量，只利用各次测量的频率值来确定桥梁结构的其它模态参数，从而确定桥梁的损伤情况．文中建立了该方法的理论模型，并对理论公式进行了推导，最后通过数值模拟对该方法的有效性进行了验证．
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| 关 键 词： | 桥梁 损伤识别 环境激励 |
| 文章编号： | 1000-565X(2005)04-0050-03 |
Bridge Damage Identification via Multi Measurement with a Moving Mass |
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| LI Da-jun,HUO Da,Han Qiang.Bridge Damage Identification via Multi Measurement with a Moving Mass[J].Journal of South China University of Technology(Natural Science Edition),2005,33(4):50-52,78. |
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| Authors: | LI Da-jun HUO Da Han Qiang |
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| Institution: | Li Da-jun1 Huo Da1 Han Qiang2 |
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| Abstract: | A new damage identification method is proposed for testing bridge structures. In this method, a moving mass is used to measure the structures in different positions. The measured nature frequencies are used as the only index to determine other model parameters, thus identifying the damage of the structures. Moreover, the theoretical model of the proposed method is established and the corresponding equations are deduced. A numerical simulation is finally carried out to verify the effectiveness of the proposed method. |
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| Keywords: | bridge damage identification ambient excitation |
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