钢绞线的控制张拉力确定和预应力损失计算

Determination of Steel Strand Controlled Tension Force and Calculation of Prestress Loss

在预应力钢绞线施工中,控制张拉力一般均为设计给定的数值,介绍了其确定方法;由于施工因素、材料性能及环境条件的影响,预应力筋的预应力损失是不可避免的,给出了钢绞线与管道摩擦引起的损失的计算方法。

In construction of prestressed steel strand,the controlled tension force always be given by designers.The prestress loss is inevitable due to influence of construction factors,material capability and enviromental conditions.The author introduces determination of steel strand controlled tension force and calculation of prestress loss.