| 桥梁倒塌模式识别方法:实例分析 |
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| 引用本文： | 闫冬,任胜健,何勇.桥梁倒塌模式识别方法:实例分析[J].公路交通科技,2011,28(9):77-80,111. |
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| 作者姓名： | 闫冬 任胜健 何勇 |
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| 作者单位： | 交通运输部公路科学研究院 北京交科公路勘察设计研究院,北京,100088 |
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| 基金项目： | 中央级公益性科研院所基本科研业务专项项目; 国家自然科学基金项目(NSFCNo.50908108) |
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| 摘 要： | 基于《桥梁倒塌模式识别方法研究:理论分析》一文中极限设计理论的桥梁倒塌模式识别方法,以台湾省二重疏洪道独塔斜拉桥及香港汲水门双塔斜拉桥为例,识别桥梁倒塌模式.其结果采用非线性有限元法进行验证.计算结果表明,简化计算方法能正确识别导致桥梁部分或整体倒塌所必须包含的破坏点,桥梁极限承载力计算误差分别小于1.1％和1.3％....
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| 关 键 词： | 桥梁工程 抗灾设计 倒塌模式 极限承载力 斜拉桥 |
Identification Method of Bridge Collapse Pattern:Analysis of Cases |
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| YAN Dong,REN Shengjian,HE Yong.Identification Method of Bridge Collapse Pattern:Analysis of Cases[J].Journal of Highway and Transportation Research and Development,2011,28(9):77-80,111. |
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| Authors: | YAN Dong REN Shengjian HE Yong |
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| Institution: | YAN Dong1,REN Shengjian1,HE Yong1(RIOH Transport Consultants Ltd.,Research Institute of Highway,Ministry of Transport,Beijing 100088,China) |
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| Abstract: | By using the proposed method for identifying bridge collapse pattern based on limit analysis theorem,taken Erchong Floodway single-pylon cable-stayed bridge in Taiwan and Kap Shui Mun twin-pylon cable-stayed bridge in Hong Kong for examples,the bridge collapse patterns were identified and the results were verified by nonlinear finite-element analysis method.It can be seen that the simplified calculation method could correctly identify the damaged components which resulted in total or partial collapse of bri... |
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| Keywords: | bridge engineering hazard-resistance design collapse pattern ultimate load-bearing capacity cable-stayed bridge |
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