Based upon comparison analysis with past pre tensioning techniques in this paper the integral tension and relaxation technology of fining twisted steel tie rods system is mainly introduced.

• 与以往的先张法工艺逐一进行对比,介绍了精轧螺纹钢拉杆系统整体张拉、放张工艺,经多项工程实践证明,其性能稳定可靠、工效高,并受到了业主、监理及施工单位的一致好