| 基于悬索桥修正成桥线形的索夹弯曲应力分析 |
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| 引用本文： | 阮坤,陈作银,陈冠桦.基于悬索桥修正成桥线形的索夹弯曲应力分析[J].世界桥梁,2011(6):46-49. |
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| 作者姓名： | 阮坤 陈作银 陈冠桦 |
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| 作者单位： | 1. 北京建达道桥咨询有限公司,北京,100016
2. 贵州省交通规划勘察设计研究院,贵州贵阳,550001 |
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| 摘 要： | 为较精确地分析悬索桥成桥线形下索夹对主缆弯曲次内力的影响,基于成桥状态下的分段悬链线理论,考虑索夹的套箍作用修正成桥线形,使其更接近于实际线形.修正后的成桥线形近似为各段悬链线与短直线段交替连续的混合线形.以三汉矶大桥为例,利用有限元法计算出索夹端面处主缆的主拉应力及索夹相对转角,代入WYATT公式,计算出主缆在各个索...
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| 关 键 词： | 悬索桥 成桥线形 悬链线 索夹 弯曲应力 有限元法 |
Analysis of Flexural Stress of Cable Bands Based on Modified Completed Bridge Geometric Shape of Suspension Bridge |
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| RUAN Kun,CHEN Zuo-yin,CHEN Guan-hua.Analysis of Flexural Stress of Cable Bands Based on Modified Completed Bridge Geometric Shape of Suspension Bridge[J].World Bridges,2011(6):46-49. |
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| Authors: | RUAN Kun CHEN Zuo-yin CHEN Guan-hua |
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| Institution: | RUAN Kun1,CHEN Zuo-yin1,CHEN Guan-hua2(1.Beijing Jianda Road & Bridge Consultant Co.,Ltd.,Beijing 100016,China,2.Guizhou Provincial Transport Planning,Survey,Design and Research Institute,Guiyang 550001,China) |
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| Abstract: | To accurately analyze the influence of cable bands on the secondary flexural internal force of main cable under the condition of completed bridge geometric shape of suspension bridge,the completed bridge geometric shape was modified to make it closer to the actual geometric shape according to the segmental catenary theory of the completed bridge and in consideration of banding effect of the cable bands,and the modified geometric shape was approximated as the alternatively continuous mixed geometric shape of... |
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| Keywords: | suspension bridge completed bridge geometric shape cantenary cable band flexural stress finite element method |
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