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首页> 外文期刊>International Journal of Critical Infrastructures >Force analysis of variable cross-section continuous box girder bridge
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Force analysis of variable cross-section continuous box girder bridge

机译：可变横截面连续箱梁桥的力分析

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摘要

In order to study the distribution of stress and deformation of variable cross-section continuous box girder bridge, in this paper, the finite element method is used to establish the model of variable cross-section continuous box girder bridge. Considering the layout of lane load, the combination of working conditions is calculated, and the stress and deformation of variable cross-section continuous box girder bridge are analysed. The results show that the maximum stress of the bridge generally occurs at the continuous beam span middle section or support, and sometimes the stress value at the vehicle load point is also large. These positions with large stress values should be considered in the design of box girder. The vertical displacement of bridge is small, removing settlement of end support. The maximum vertical displacement of bridge span middle section is 15 mm, and the bridge design scheme is safe, reliable and economical.
机译：为了研究可变横截面连续箱梁桥的应力和变形的分布，本文采用了有限元方法来建立可变横截面连续箱梁桥模型。 考虑到车道负荷的布局，计算了工作条件的组合，分析了可变横截面连续箱梁桥的应力和变形。 结果表明，桥梁的最大应力一般发生在连续光束跨度中间部分或支撑处，有时，车辆负荷点的应力值也很大。 应在箱梁设计中考虑具有大应力值的这些位置。 桥梁的垂直位移很小，去除结束结束的最终支撑。 桥梁跨度中间部分的最大垂直位移为15毫米，桥梁设计方案安全，可靠且经济。

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