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考虑竖向预应力的损失和竖向预应力筋位置的偏置,以渭河连续刚构桥为工程背景,采用有限元模型对中跨1/4处的箱梁段进行局部分析,研究箱梁腹板中斜裂缝的成因。
Considering the loss of vertical prestress and the bias of the vertical prestressing tendons, the continuous rigid frame bridge of Weihe River is taken as the engineering background. The finite element model is used to analyze the box girder section at mid-span 1/4, Causes of diagonal cracks in webs.