摘要
依据《混凝土结构设计规范》(GB50010-2002)和《混凝土结构加固技术规范》(CECS25:90),基于平截面假定,考虑二次受力,提出了外贴碳纤维加固RC梁的正截面承载力实用计算公式,从提高CFRP加固RC梁的延性出发,推导了其适用条件,用结构分析软件ANSYS模拟了CFRP加固RC梁的荷载位移曲线,最后计算了正截面抗弯承载力值。理论计算与试验结果比较吻合,可供工程设计参考。
According to code for design of concrete structures and technical specification for strengthening concrete structures,based on the assumption of plane section,a method for calculating the ultimate capacity of reinforced concrete beam strengthened with carbon fiber reinforced plastic(CFRP) plates was proposed considering the effect of secondary loading and a application condition was deduced from the view of improving ductility.Then,a three-dimensional FE model was established and load-displacement curves were simulated by ANSYS software before and after the installation of the CFRP system in the paper.In the end,the ultimate capacity was calculated,which agree with the experimental results.The design method can be available for reference in design.
出处
《工业建筑》
CSCD
北大核心
2006年第z1期1032-1034,1076,共4页
Industrial Construction
