锈后预应力混凝土梁整体性能研究

Ultimate Bearing Capacity Analysis of Corrosive Damage on Prestressed Reinforced Concrete Continuous Beam

为了了解锈后预应力混凝土梁各个部位的力学性能,通过对受损梁体内控制截面混凝土、普通钢筋、预应力钢筋的荷载-应力应变时程曲线分析,充分考虑混凝土裂缝发生后结构的应力重分布现象,得到了梁体由于耐久性引起的损伤对梁体极限承载力的影响.

In order to understand the rust after prestressed concrete beam , the mechanical properties of different parts , the damaged beam control section , and the load -time history curve of stress and strain of the prestressed reinforced concrete were analyzed .According to the structure stress redistribution after the occurrence of concrete crack phenomenon , the durability damage on the ultimate bearing capacity of beam body was ob-tained.