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该文结合湖南邵永高速公路湘江大桥的施工图设计,运用大跨度桥梁设计计算与控制分析软件Bdcms对该桥进行了仿真计算,分析了在主梁张拉完成工况下主梁控制截面的应变情况。在计算中,对于影响预应力损失的管道偏差这一参数,分别采用了规范规定取值和现场试验得到数值,并对主梁截面应变计算结果进行了对比,得出了管道偏差系数k取值不同对该桥箱梁截面应变的影响情况。
In this paper, the design of Hunan Shaoxing Expressway Xiangjiang River Bridge construction design, the use of long-span bridge design calculation and control analysis software Bdcms simulation of the bridge was calculated, the analysis of the main beam tension completed cross-section of the main girder control section Strain situation. In the calculation, for the parameter of pipeline deviation that affects the loss of prestress, the value of the code and field test are taken respectively, and the calculation results of the strain of the cross section of the main girder are compared, and the value of the pipe deviation coefficient k Different effects on the girder cross-section strain of the bridge.