后张法预应力空心板张拉裂缝试验分析

Test Analysis on the Tension-Caused Cracks in the Post Tension Pre-stressed Cored Slabs

对后张法预应力空心板张拉过程中端部加强区纵向裂缝问题进行了对比试验 ,分析了裂缝产生的原因 ,提出了施工建议。

Here is an introduction to the comparative test on the longitudinal cracks occurring in the top enforced area in the course of stretching of the post tension pre-stressed cored slabs,a further analysis on the causes that lead to the cracks,and a rational proposal for the next steps of the construction.