摘要
文章介绍了体外预应力加固法的原理和应用。通过某桥加固实例的分析可以看出:体外预应力加固时,通过选取合理的钢绞线数量和线形布置,可以同时提高主梁的正截面抗弯承载力和斜截面抗剪承载力,从而达到改善旧桥使用性能并提高其极限承载力的目的,取得很好的加固效果。
This paper introduces the principle and application of external prestressing reinforcement method. Through the analysis of a bridge reinforcement example, it can be seen that the flexural capacity of the normal section and the shear capacity of the inclined section of the main beam can be improved at the same time by selecting a reasonable number of steel strands and linear arrangement in the external prestressing reinforcement, so as to improve the performance of the old bridge and improve its ultimate bearing capacity, and achieve a good reinforcement effect.
出处
《科技创新与应用》
2019年第15期166-168,共3页
Technology Innovation and Application
关键词
体外预应力加固法
加固
线形布置
抗弯承载力
抗剪承载力
external prestressing reinforcement
reinforce
linear arrangement
flexural capacity
shear capacity
