| 特大跨悬索桥动力特性及参数分析 |
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| 引用本文： | 孙胜江,刘书伟.特大跨悬索桥动力特性及参数分析[J].公路,2007(11):41-45. |
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| 作者姓名： | 孙胜江 刘书伟 |
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| 作者单位： | 长安大学桥梁与隧道陕西省重点实验室,西安市,710064 |
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| 摘 要： | 鉴于当前对影响悬索桥动力特性的一些关键参数少有系统研究的现状,采用有限元法分析了四渡河悬索桥的动力性能,并从中央扣的设置与否,主缆、吊索、加劲梁和索塔的刚度变化以及边界条件变化等方面进行了自振特性的参数影响分析,得出了若干结论,为悬索桥的优化设计提供理论依据。
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| 关 键 词： | 悬索桥 动力特性 有限元法 参数分析 |
| 文章编号： | 0451-0712（2007）11-0041-05 |
| 修稿时间： | 2007-05-18 |
Dynamic Characteristics and Parameter Analysis of Super-Long Span Suspension Bridges |
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| SUN Sheng-jiang,LIU Shu-wei.Dynamic Characteristics and Parameter Analysis of Super-Long Span Suspension Bridges[J].Highway,2007(11):41-45. |
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| Authors: | SUN Sheng-jiang LIU Shu-wei |
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| Abstract: | Currently,the design parameters which influence the dynamic characteristics of suspension bridges are less studied systemically.The dynamic characteristics of Sidu River Suspension Bridge are analyzed using the finite element method,and the influences of design parameters,such as rigidity variations of the main cable,suspender,stiff girder and tower and terminal condition etc on dynamic characteristics of the suspension bridge are investigated.Some conclusions are indicated which provides theoretical basis for optimization design. |
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| Keywords: | suspension bridge dynamic characteristics finite elemen method parameter analysis |
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