| 既有双曲拱桥承载能力的空间分析与评估 |
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| 引用本文： | 李金枝.既有双曲拱桥承载能力的空间分析与评估[J].水运科技信息,2010(3):7-9. |
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| 作者姓名： | 李金枝 |
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| 作者单位： | 广州市市政工程设计研究院,广州510060 |
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| 摘 要： | 采用有限元法建立既有双曲拱桥的空间模型,运用空间分析对双曲拱桥的承载能力进行评定。以阳头大桥为工程实例,利用上述建模方法建立了该桥的实体有限元模型,计算了主拱圈在自重作用下的应力。在有限元模型中进行加载仿真计算,将有限元计算结果与荷载试验实测值进行对比,以评定实桥的承载能力。
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| 关 键 词： | 双曲拱桥 承载能力 有限元法 |
Spatial Analysis and Loading Capacity Assessment of Existing Double-curvature Arch Bridge |
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| Li Jinzhi.Spatial Analysis and Loading Capacity Assessment of Existing Double-curvature Arch Bridge[J].Transportation Science & Technology,2010(3):7-9. |
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| Authors: | Li Jinzhi |
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| Institution: | Li Jinzhi(Guangzhou Municipal Engineering Design and Research Institute,Guangzhou 519000,China) |
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| Abstract: | The spatial analysis of existing double-curvature arch bridge by making use of finite element method is presented,by which the loading ability can be evaluated. The finite element model of double-curvature arch bridge is established and internal force caused by self-gravity of main arch is calculated. The result of finite element method is compared with that determinated by load experiment. According to the above work,loading capacity of double-curvature arch bridge can be obtained. |
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| Keywords: | double-curvature arch bridge loading capacity finite element method |
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