| 悬索桥恒载作用下缆索线形及内力的计算方法 |
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| 引用本文： | 刘毅,李爱群,郭彤.悬索桥恒载作用下缆索线形及内力的计算方法[J].桥梁建设,2007(3):24-26. |
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| 作者姓名： | 刘毅 李爱群 郭彤 |
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| 作者单位： | 东南大学土木工程学院,混凝土及预应力混凝土结构教育部重点实验室,江苏,南京,210096 |
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| 基金项目： | 国家自然科学基金;国家高技术研究发展计划(863计划) |
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| 摘 要： | 探讨悬索桥恒载作用下缆索线形及其内力的计算方法。先用悬链线公式给出主缆的近似位置,然后通过对结构进行拆分、组合的分析过程,给出缆索成桥线形及其内力的计算步骤。对润扬大桥悬索桥的成桥状态进行分析,并与竣工实测数据进行对比。结果表明,该方法可以获得较准确的计算结果。
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| 关 键 词： | 悬索桥 缆索 线形 内力 有限元法 |
| 文章编号： | 1003-4722（2007）03-0024-03 |
| 修稿时间： | 2006-09-11 |
An Algorithm for Geometric Shape and Internal Force of Cables of Suspension Bridge Under Dead Load |
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| LIU Yi,LI Ai-qun,GUO Tong.An Algorithm for Geometric Shape and Internal Force of Cables of Suspension Bridge Under Dead Load[J].Bridge Construction,2007(3):24-26. |
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| Authors: | LIU Yi LI Ai-qun GUO Tong |
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| Institution: | Key Laboratory for Concrete and Prestressed Concrete Structures of Ministry of Education, College of Civil Engineering, Southeast University, Nanjing 210096, China |
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| Abstract: | An algorithm for geometric shape and internal force of the cables of suspension bridge under dead load is studied.The probable locations of the main cables of the bridge are firstly given by centenary formula and the calculation steps for the geometric shape as well as the internal force of the cables of the completed bridge are provided through analysis process of disconnecting and assembling of the structure.The completed suspension bridge of Runyang Bridge is then taken as an example and analyzed by the algorithm,and the results of the analysis are compared with the field measurement data collected at the completion stage.It is shown that the algorithm presented in the paper can obtain fairly precise calculation results. |
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| Keywords: | suspension bridge cable geometric shape internal force finite element method |
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