盖梁预应力孔道摩阻系数施工应用

The Beam Duct Friction Coefficient Of Construction Application

本文主要对盖梁预应力孔道张拉进行了摩擦阻力计算研究。依据实际伸长量求出了扣除摩阻力损失之后的预应力,进而求得摩阻力损失值以及摩阻系数。提出了正确的摩阻系数计算方法并同设计值进行了对照。该研究可为梁桥施工监控中的应力分析和线形控制提供可靠的对比依据。

This paper focuses on the coping of prestressed tension friction calculation. On the basis of the ac- tual elongation for the friction loss deduction after the prestressed, and then obtain the friction loss and friction coef- ficient values. The correct method of frictional resistance coefficient calculation is presented and compared with the design value. The research can provide a reliable basis for the stress analysis and the linear control of the bridge construction monitoring.