1. Research Institute of Highway Ministry of Transport, Beijing 100088, China;
2. Beijing Laboratory of Earthquake Engineering and Structural Retrofit, Beijing University of Technology, Beijing 100124, China
Method for Identifying Bridge Collapse Patterns: Analysis of Cases
YAN Dong1, HE Hao-xiang2, REN Sheng-jian1, HE Yong1
1. Research Institute of Highway Ministry of Transport, Beijing 100088, China;
2. Beijing Laboratory of Earthquake Engineering and Structural Retrofit, Beijing University of Technology, Beijing 100124, China
摘要A method is proposed to identify bridge collapse patterns based on the limit analysis theorem. The Erchong Floodway single-pylon cable-stayed bridge in Taiwan and the Kap Shui Mun twin-pylon cable-stayed bridge in Hong Kong were taken as examples. The bridge collapse patterns were identified, and the results were verified using nonlinear finite element analysis method. The simplified calculation method can correctly identify the damaged components that caused the total or partial collapse of the bridges. The calculation errors of the ultimate load-bearing capacity of the two bridges were less than 1.1% and 1.3%, respectively. Considering that the simplified method is accurate and computationally efficient, it can be used to study bridge collapse mechanisms to identify critical components and provide scientific foundation for bridge collapse-resistance design and reinforcement.
Abstract：A method is proposed to identify bridge collapse patterns based on the limit analysis theorem. The Erchong Floodway single-pylon cable-stayed bridge in Taiwan and the Kap Shui Mun twin-pylon cable-stayed bridge in Hong Kong were taken as examples. The bridge collapse patterns were identified, and the results were verified using nonlinear finite element analysis method. The simplified calculation method can correctly identify the damaged components that caused the total or partial collapse of the bridges. The calculation errors of the ultimate load-bearing capacity of the two bridges were less than 1.1% and 1.3%, respectively. Considering that the simplified method is accurate and computationally efficient, it can be used to study bridge collapse mechanisms to identify critical components and provide scientific foundation for bridge collapse-resistance design and reinforcement.
基金资助:Supported by the National Natural Science Foundation of China(No.50908108, No.51108009);the Science Foundation for Excellent Young Scholars of Ministry of Education of China(No.20111103120022)
通讯作者:
YAN Dong, d.yan@rioh.cn
E-mail: d.yan@rioh.cn
引用本文:
闫冬, 何浩祥, 任胜健, 何勇. 桥梁倒塌模式识别方法研究:实例分析[J]. Journal of Highway and Transportation Research and Development, 2013, 7(1): 60-64.
YAN Dong, HE Hao-xiang, REN Sheng-jian, HE Yong. Method for Identifying Bridge Collapse Patterns: Analysis of Cases. Journal of Highway and Transportation Research and Development, 2013, 7(1): 60-64.
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常柱刚, 王林凯, 夏飞龙. 基于CV NewMark-b法桥梁风致振动FSI数值模拟[J]. Journal of Highway and Transportation Research and Development, 2019, 13(2): 28-37.
2013, Vol. 7 
