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| DIAGNOSIS OF LARGE-SPAN BRIDGE'S DAMAGE |
| YUAN Ming1, HE Guo-jing2 |
| 1Chinese Railway General Engineering Corporation, 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 arc analyzed and many simulated damage cases in the FEM arc investigated by using a structural damage detection method, CMSE, proposed by author. Results indicate that the dynamic characterizes of the simple FEM arc 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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Received: 21 August 2003
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[2]史治宇,张令弥,吕令毅.基于模态应变能诊断结构破损的修正方法[J].东南大学学报,2000.5.
[3]袁明,贺国京.基于模态应变能的结构损伤检测方法研究铁道学报[J]. 2002.2.
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2003, Vol. 20 
