折线配筋预应力混凝土先张梁受力分析

The Analysis for Broken Line Reinforcement Prestressed Concrete Pretensioned Beam Stress

折线配筋预应力混凝土先张梁是一种新型预应力混凝土结构,其较好的受力方式解决了先张梁跨度较小的不足.还完全保留了先张法的优点,避免了后张法在施工工艺和耐久性等方面的缺憾,有效控制梁端斜裂缝的出现,提高构件的抗剪能力和耐久性.通过对其受力性能的分析,验证了试验与理论计算的正确性,大大拓展了预应力混凝土先张结构的应用范围.

Broken line reinforcement prestressed concrete to pretensioned beam is a new type of prestressed concretestructure. The better way of the stress solves the problem of pretensioned beam span smaller,Also fully retains theadvantages of pretensioning method,avoiding the shortcoming of post tensioning method in the construction technologyand durability aspects. At the same time,it shows effective control of beam end of diagonal cracks,and improves the shearstrength and durability of concrete. Through the analysis of the performance of the stress,the study verified thecorrectness of the test and the theory calculation,and greatly expanded the scope of application of prestressed concretepretensioned structures.