加固某网架结构的钢绞线中预应力测控

Prestress Measurement and Control of Steel Strand in Reinforcing a Grid Structure

本文针对钢绞线加固某网架结构中预应力的测控,在专利《预应力钢索张力计》基础上自行研制出一种张拉力测定仪。在进行本工程钢绞线张拉力测量中,充分考虑张拉过程中钢绞线的伸长量,测量结果满足设计要求。与专利方法对比分析,本文自行研制的张拉力测定仪测控钢绞线张拉力更为精确。

In this paper, for the reinforcement of a network structure of the prestress control, on the basis of the patent “prestressed cable tension meter” we developed a tension tester. In the process of measuring the tensioning force of the steel strand in this project, we fully take account of the elongation of the strand in the process of tension, and the measurement results meet the design requirements. Compared with the patented method, this paper developed a tensile tester to measure and control the tension of strand more accurately.