| 部分斜拉桥拉索疲劳可靠度分析 |
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| 引用本文： | 杨美良,李波,黄立浦.部分斜拉桥拉索疲劳可靠度分析[J].长沙交通学院学报,2007,23(1):6-9,18. |
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| 作者姓名： | 杨美良 李波 黄立浦 |
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| 作者单位： | 长沙理工大学,桥梁与结构工程学院,湖南,长沙,410076 |
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| 摘 要： | 依据等效疲劳损伤原理,将车辆荷载等效为模型车辆荷载频值谱,利用蒙特卡罗法随机抽样模拟出斜拉索的应力时程,假定结构疲劳寿命服从威布尔分布,推导出疲劳可靠度公式,并以株洲市芦凇大桥主桥为实例进行了验证.
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| 关 键 词： | 部分斜拉桥 斜拉索 车辆荷载谱 蒙特卡罗法 疲劳可靠度 |
| 文章编号： | 1000-9779（2007）01-0006-04 |
| 收稿时间： | 2006-10-11 |
| 修稿时间： | 2006-10-11 |
Fatigue reliability analysis of the stay cables of paritally cable-stayed bridge |
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| YANG Mei-liang,LI Bo,HUANG Li-pu.Fatigue reliability analysis of the stay cables of paritally cable-stayed bridge[J].Journal of Changsha Communications University,2007,23(1):6-9,18. |
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| Authors: | YANG Mei-liang LI Bo HUANG Li-pu |
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| Institution: | College of Bridge and Structure Engineering, Changsha University of Science and Technology, Changsha 410076, China |
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| Abstract: | In order to quantify the reliability of stay cable on partially cable-stayed bridge under the influence of vehicle load,fatigue reliability formula of stay cable is modified by assuming that the fatigue life is in accordance with the Weibull distribution.Based on the accurate analysis of vehicle load spectrum,the time history of stay cable is simulated and numerical example is presented to testify this method. |
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| Keywords: | partially cable-stayed bridge stay cable vehicle load spectrum Monte Carlo method fatigue reliability |
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