| 尼尔森体系系杆拱桥稳定性分析 |
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| 引用本文： | 母渤海,李喜梅.尼尔森体系系杆拱桥稳定性分析[J].城市道桥与防洪,2010(8):215-217. |
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| 作者姓名： | 母渤海 李喜梅 |
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| 作者单位： | 1. 上海市政工程设计研究总院兰州分院,兰州,730000
2. 兰州理工大学,兰州,730000 |
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| 摘 要： | 尼尔森体系拱桥本身结构复杂,影响其稳定性的因素很多。该文通过建立空间有限元模型,对影响该体系稳定性的因素做了分析对比,给出各构件对稳定性的影响,总结得出一般性的结论,为该体系桥梁提供结构设计和稳定性分析依据。
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| 关 键 词： | 尼尔森体系 稳定性 失稳模态 模型 |
Stability Analysis of Bowstring Arch Bridge in Nielsen System |
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| Mu Bohai,Li Ximei.Stability Analysis of Bowstring Arch Bridge in Nielsen System[J].Urban Roads Bridges & Flood Control,2010(8):215-217. |
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| Authors: | Mu Bohai Li Ximei |
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| Abstract: | The structure of the bowstring arch bridge in Nielsen system is very complicated,and a lot of factors influence its stability.This paper contrasts and analyzes to the factor influencing the system stability by establishing the dimensional finite element model,gives the influences of each member on the stability,and sums up the general conclusion able to provide the basis for the structure design and stability analysis of the bridges in this system. |
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| Keywords: | Nielsen system stability instability modes model |
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