后张连续梁中预应力质量控制的关键工序

Key of controlling prestressing quality in post-tensional continuous beam

通过对后张预应力混凝土连续梁的施工监理,总结了预应力质量控制的几个关键工序,从预应力钢筋的安装,预应力钢筋的张拉及控制要点和注意事项,真空辅助压浆技术几个方面进行了论述,从而提高后张连续梁的质量。

The paper concludes keys of controlling prestressing quality through supervising the construction of post-tensional continuous beam. It states from the aspects of installation of reinforcing steel bar, dilatation of the bar, controlling points and other items as well as vacuum assisted grouting technology, thus improve quality of such girder.