| 南宁外倾式非对称钢筋肋拱桥稳定性研究 |
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| 引用本文： | 郑洁.南宁外倾式非对称钢筋肋拱桥稳定性研究[J].城市道桥与防洪,2012(8):189-191,202. |
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| 作者姓名： | 郑洁 |
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| 作者单位： | 北京中联环工程股份有限公司,北京市,100037 |
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| 摘 要： | 南宁大桥采用外倾式非对称双肋拱桥结构形式,主跨300m,为目前世界上跨度最大的外倾式双肋拱桥。此桥型稳定问题突出。建立全桥有限元模型进行特征值屈曲分析和非线性屈曲分析,结果显示南宁大桥稳定性良好可靠。
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| 关 键 词： | 外倾式非对称双肋拱桥 有限元 稳定性 非线性屈曲 |
Study on Stabilization of Extraversive Asymmetric Steel Reinforced Rib Arch Bridge in Nanning |
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| Zheng Jie.Study on Stabilization of Extraversive Asymmetric Steel Reinforced Rib Arch Bridge in Nanning[J].Urban Roads Bridges & Flood Control,2012(8):189-191,202. |
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| Authors: | Zheng Jie |
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| Abstract: | Nanning Bridge uses the structural type of extraversive asymmetric double-rib arch bridge.Its main span is 300 m.It is the longest span of extraversive double-rib arch bridge in the world now.The stabilization of this bridge type is the outstanding issue.The finite element model of the whole bridge is set up to carry out the eigenvalue buckling analysis and the nonlinear buckling analysis.The result shows that the stabilization of Nanning Bridge is excellent and reliable. |
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| Keywords: | extraversive asymmetric double-rib arch bridge finite element stabilization nonlinear buckling |
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