FRP复合加固旧梁抗弯承载力计算分析

摘要

基于现行混凝土结构加固设计规范关于粘贴FRP加固法的计算理论以及植筋法对于新老混凝土剪切面的影响,针对CFRP＋置换混凝土＋植筋的复合加固方法的特征,确定旧梁正截面受弯承载力计算公式,其理论计算和试验结果基本相符,同时为今后复合加固修复旧梁的计算提供一定的借鉴作用。%Based on adhesive FRP reinforcement method computation theory in the current concrete structure reinforcement design code and the influence of reinforcement method to new and old concrete shear surface,according to the characteristics of CFRP＋replacement concrete＋composite method of reinforcement,determined the flexural bearing capacity calculation formula of old beam section surface,the theoretical calculation and the experimental result agreed well,at the same time provided a certain reference for the future reinforcement and restoration old beam calculation.