| 风载作用下悬索桥吊索腐蚀疲劳寿命分析 |
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| 引用本文： | 胡俊,欧进萍.风载作用下悬索桥吊索腐蚀疲劳寿命分析[J].钢结构,2011,26(5):63-67. |
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| 作者姓名： | 胡俊 欧进萍 |
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| 作者单位： | 大连理工大学土木工程学院; |
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| 基金项目： | 国家自然科学基金重大研究计划(90815030); 国家科技支撑计划项目(2006BAJ03B04) |
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| 摘 要： | 悬索桥的吊索在运营期间的安全是桥梁结构安全的最重要条件之一.根据与外部环境接触的先后顺序及破坏的先后顺序,将拉索钢丝的锈蚀演化过程描述为4个不同的阶段,同时在桥梁抖振时程分析基础上,模拟出脉动风作用下东海某跨海悬索桥1号吊索的应力响应时程并探讨了风载作用下的腐蚀疲劳寿命.结果表明:在高风速作用下,吊索构件的应力幅相应较...
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| 关 键 词： | 悬索桥 吊索 腐蚀疲劳 抖振 |
THE CORROSION FATIGUE LIFE ANALYSIS ON HANGERS OF LONG SPAN SUSPENSION BRIDGE UNDER WIND LOAD |
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| Hu Jun,Ou Jinping.THE CORROSION FATIGUE LIFE ANALYSIS ON HANGERS OF LONG SPAN SUSPENSION BRIDGE UNDER WIND LOAD[J].Steel Construction,2011,26(5):63-67. |
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| Authors: | Hu Jun Ou Jinping |
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| Affiliation: | Hu Jun Ou Jinping(School of Civil Engineering,Dalian University of Technology,Dalian 116024,China) |
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| Abstract: | The safety of hangers of suspension bridge during operation is one of the most important factors,based on the sequence of contact with the external environment and the destruction order,the evolution of corrosion of cable wire is described as four stages,while based on the accurate bridge buffeting analysis of time history,the time history of stress of a suspension bridge hanger is simulated,and the hanger's corrosion-fatigue life is also calculated.The results indicate that under high wind speed,the hanger... |
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| Keywords: | suspension bridge hanger corrosion fatigue buffeting |
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