基于体外预应力加固的连续梁桥承载力研究

Study on bearing capacity of continuous beam bridge based on external prestressing

结合某大跨度连续梁桥,总结线形病害,优化体外预应力加固设计,并分析加固后承载力提升效果,结果表明,经体外预应力加固后,大桥承载力基本满足规范要求,最小安全系数为1.12。

Combining with a long-span continuous girder bridge,this paper summarizes the linear diseases,optimizes the external prestressing reinforcement design,and analyses the effect of bearing capacity improvement after reinforcement.The results show that the bearing capacity of the bridge basically meets the requirements of the code after external prestressing reinforcement,and the minimum safety factor is 1.12.