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本文利用连续函数来拟合“桥规”中徐变系数的数学表达形式。提出含有配筋截面的杆端徐变等效荷载的计算方法。通过洪塘桥工程的实例计算表明,对于采用节段形式施工的预应力混凝土桥梁,在工程控制中正确地估算徐变变形具有重要意义。
In this paper, the continuous function is used to fit the mathematical expression of creep coefficient in “bridge gauge”. The calculation method of creep equivalent load on rod end with reinforcement section is proposed. The case study of Hongtang Bridge Project shows that it is of great significance to correctly estimate the creep deformation in engineering control of prestressed concrete bridges with segmental construction.