| 公路独柱窄幅桥梁倾覆稳定性能 |
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| 引用本文： | 王统宁,靳启文,孙艺利,胡兆同.公路独柱窄幅桥梁倾覆稳定性能[J].中南公路工程,2014(2):63-67,75. |
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| 作者姓名： | 王统宁 靳启文 孙艺利 胡兆同 |
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| 作者单位： | [1]河南省桥梁诊断与加固工程技术研究中心 桥梁工程研究所,河南 郑州 450015 [2]河南省交通科学技术研究院有限公司 桥梁工程研究所,河南 郑州 450015 [3]长安大学 公路学院桥梁系,陕西 西安710064 |
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| 基金项目： | 河南省交通运输科技计划项目（2011D05） |
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| 摘 要： | 基于公路、铁路相关规范关于桥梁抗倾覆性能条文的不同规定，采用剪力-柔性梁格分析方法，对一座多跨独柱曲线预应力混凝土桥梁进行横向整体抗倾覆稳定性分析。采用桥梁结构专用分析程序，针对两种典型支座布置下的算例桥梁进行计算简化并建立空间网格分析模型。认为，针对公路独柱曲线窄幅桥梁，采用公、铁2种计算方法的结果基本接近。建议采用公路桥梁计算表达式进行结构设计，以增大其安全储备；采用铁路桥梁计算表达式对其进行结构验算，可有效简化验算工作，并能真实反映结构的横向整体抗倾覆性能。
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| 关 键 词： | 公路桥梁 独柱 窄幅 脱空 倾覆稳定 精细化模型 |
Refinement on Overturning Stability of Single Column and Narrow Deck Highway Bridge |
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| WANG Tongning,JIN Qiwen,SUN Yili,HU Zhaotong.Refinement on Overturning Stability of Single Column and Narrow Deck Highway Bridge[J].Central South Highway Engineering,2014(2):63-67,75. |
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| Authors: | WANG Tongning JIN Qiwen SUN Yili HU Zhaotong |
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| Institution: | 1. Institute of Bridge Engineering of Bridge Diagnosis and Reinforcement Engineering Technology Re- search Center of Henan Province, Zhengzhou, Henan 450015, China; 2. Institute of Bridge Engineer- ing of Henan Transportation Research Institute CO. , LTD, Zhengzhou, Henan 450015, China; 3. De- partment of Civil Engineering, Chang＇ an University, Xi＇an, Shanxi 710026, China) |
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| Abstract: | Based on overturning resistance provisions of different rules of highway and railway bridge,with shear-flexible grillage analytical method,making the transverse overall anti overturning sta-bility analysis of a multi span single-pedestal curve prestressed concrete bridge.With special bridge structure analysis program,simplifying the calculation of bridge under two typical bearing arrangement and establishing the space grid analysis model.Suggesting that,for the single-pedestal curve narrow highway bridge,the results of two calculation methods is close to each other.Recommending highway bridge calculation expression for structural design so as to increase its safety reserves;using the railway bridge structure calculation for check calculation,which can effectively simplify the calculation work, and can really reflect the whole transverse overturning resistance of structure. |
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| Keywords: | bridge of highway single column narrow deck bearing failure overturning stabili-ty refinement model |
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