| 大跨度桥梁损伤诊断研究 |
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| 引用本文： | 袁明,贺国京.大跨度桥梁损伤诊断研究[J].铁道工程学报,2003(4):81-85. |
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| 作者姓名： | 袁明 贺国京 |
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| 作者单位： | 1. 中国铁路工程总公司,北京,100055
2. 中南大学铁道学院土木建筑学院,长沙,410075 |
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| 摘 要： | 建立简化的汀九斜拉桥有限元模型 (FEM) ,计算该桥的动力特性 ,利用完备模态应变能法 (CMSE)进行该桥的损伤诊断数值仿真试验。结果表明简化的汀九斜拉桥 FEM能够反映真实结构的动力特性 :完备模态应变能法适用于低频密频的大跨度斜拉桥、悬索桥等柔性结构 ,并且只需少量低阶模态即可保证结构损伤诊断精度
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| 关 键 词： | 汀九斜拉桥 动力特性 损伤诊断 |
| 文章编号： | 1006-2106(2003)04-0081-05 |
| 修稿时间： | 2003年8月21日 |
DIAGNOSIS OF LARGE-SPAN BRIDGE'S DAMAGE |
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| YUAN Ming,HE Guo-jing Chinese Railway General Engineering Corparation,Civil Engineering Institute of Central South University.DIAGNOSIS OF LARGE-SPAN BRIDGE''''S DAMAGE[J].Journal of Railway Engineering Society,2003(4):81-85. |
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| Authors: | YUAN Ming HE Guo-jing Chinese Railway General Engineering Corparation Civil Engineering Institute of Central South University |
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| Institution: | YUAN Ming,HE Guo-jing 1Chinese Railway General Engineering Corparation,2Civil Engineering Institute of Central South University |
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| Abstract: | A simple FEM of Ting Kau cable-stayed bridge is built,its dynamic characterizes are analyzed and many simulated damage cases in the FEM are investigated by using a structural damage detection method,CMSE,proposed by author.Results indicate that the dynamic characterizes of the simple FEM are similar to those of Ting Kau cable-stayed bridge and CMSE is the same with flexible structures with low and intense frequencies such as long-span cable-stayed bridge and has satisfying precision in damage detection only using a few low modes. |
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| Keywords: | ting kau cable-stayed bridge dynamic characterizes damage detection |
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