| 悬索桥吊索体系的剩余寿命评估方法研究 |
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| 引用本文： | 米江川,张辉青,张乔.悬索桥吊索体系的剩余寿命评估方法研究[J].交通标准化,2009(3):57-60. |
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| 作者姓名： | 米江川 张辉青 张乔 |
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| 作者单位： | 安康公路局,陕西安康725000 |
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| 摘 要： | 根据断裂力学理论和结构系统可靠性分析原理，推导出交变应力引起的悬索桥吊索系统疲劳失效的计算公式，从而提出的一种考虑构件腐蚀后吊索系统安全寿命的评估方法，可以为公路管理部门合理安排桥梁的检测、维修、加固的时机和投资提供依据。
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| 关 键 词： | 吊索体系 模糊可靠度 疲劳失效 安全寿命 |
Evaluation Method of Residual Life of Suspension Cable System in Suspension Bridge |
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| MI Jiang-chuan,ZHANG Hui-qing,ZHANG Qiao.Evaluation Method of Residual Life of Suspension Cable System in Suspension Bridge[J].Communications Standardization,2009(3):57-60. |
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| Authors: | MI Jiang-chuan ZHANG Hui-qing ZHANG Qiao |
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| Institution: | (Ankang Highway Bureau, Ankang 725000, China) |
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| Abstract: | Based on the theory of fracture mechanics and the principle of structural reliability analysis, a computation formula of the fatigue failure of suspension cable system in a suspension bridge caused by alternate stress is deduced, thus an evaluation method on the safety life of suspen- sion cable system which has been subjected to eroding is suggested, according to which, highway ad- ministration departments can arrange the opportunity of detection, maintenance and strengthening of bridges, as well as the investment. |
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| Keywords: | suspension cable system fuzzy reliability fatigue failure safety life |
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