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外贴CFRP加固RC梁正截面承载力的实用计算
引用本文:王春苗,陈隽芝,冯振宇. 外贴CFRP加固RC梁正截面承载力的实用计算[J]. 工业建筑, 2006, 36(Z1): 1032-1034
作者姓名:王春苗  陈隽芝  冯振宇
作者单位:1. 东南大学,土木工程学院,南京,210096
2. 杭州市财政性投资工程审价中心,杭州,310009
3. 中国民航学院机电分院,天津,300300
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。

关 键 词:抗弯加固  CFRP  三维有限元模型  荷载-位移曲线
修稿时间:2006-03-28

A PRACTICAL METHOD OF ULTIMATE FLEXURAL CAPACITY OF RC BEAMS STRENGTHENED WITH CFRP PLATES
Wang Chunmiao,Chen Juanzhi,Feng Zhenyu. A PRACTICAL METHOD OF ULTIMATE FLEXURAL CAPACITY OF RC BEAMS STRENGTHENED WITH CFRP PLATES[J]. Industrial Construction, 2006, 36(Z1): 1032-1034
Authors:Wang Chunmiao  Chen Juanzhi  Feng Zhenyu
Abstract: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.
Keywords:flexural strengthening CFRP three-dimensional FE model load-displacement curves
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