| 独塔单索面混合梁斜拉桥偏载扭转效应分析 |
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| 引用本文： | 刘琪,吴忠华,付坤.独塔单索面混合梁斜拉桥偏载扭转效应分析[J].桥梁建设,2011(6). |
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| 作者姓名： | 刘琪 吴忠华 付坤 |
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| 作者单位： | 中交第二公路勘察设计研究院有限公司,湖北 武汉,430056 |
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| 摘 要： | 为研究单索面混合梁斜拉桥扭转效应影响,以佛山市顺德区容桂特大桥(跨径组成为136 m+254 m)为背景,利用通用软件MIDAS Civil建立独塔单索面混合梁斜拉桥壳、梁混合单元有限元模型,分别提取对称荷载与偏载作用下主跨钢箱梁与边跨混凝土箱梁的控制截面应力及位移进行比较分析.结果表明,该桥主梁偏载扭转效应明显,活载分析采用常规设计1.15偏载系数偏不安全,建议适当放大以保证设计安全性.
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| 关 键 词： | 斜拉桥 独塔 单索面 混合梁 扭转分析 偏载 |
Analysis of Eccentric Load Torsional Effect of Hybrid Girder Cable-Stayed Bridge with Single Pylon and Single Cable Plane |
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| LIU Qi
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WU Zhong-hua
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FU Kun.Analysis of Eccentric Load Torsional Effect of Hybrid Girder Cable-Stayed Bridge with Single Pylon and Single Cable Plane[J].Bridge Construction,2011(6). |
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| Authors: | LIU Qi WU Zhong-hua FU Kun |
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| Institution: | LIU Qi,WU Zhong-hua,FU Kun(CCCC Second Highway Consultants Co.,Ltd.,Wuhan 430056,China) |
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| Abstract: | To study the influences of the torsional effect of hybrid girder cable-stayed bridge with a single pylon and a single cable plane,a bridge of its kind,the Ronggui Bridge(with span arrangement 136 m+254 m) in Shunde District,Foshan City,was cited as an example.The universal software MIDAS Civil was employed to build the mixed shell and beam finite element model for the bridge and the stress and displacement of the control sections of the main span steel box girder and side span concrete box girder under the ... |
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| Keywords: | cable-stayed bridge single pylon single cable plane hybrid girder torsional analysis eccentric load |
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