外贴碳纤维布加固混凝土梁的抗剪设计方法

SHEAR DESIGN METHOD OF CONCRETE BEAMS STRENGTHENED WITH CARBON FIBER REINFORCED POLYMER SHEET

在对 2 0根碳纤维布 (简称CFRPs)加固混凝土梁进行抗剪试验及国内外相关试验研究的基础上 ,对采用碳纤维布加固后梁的破坏机理进行了分析研究 ,针对两种不同的破坏特征提出了相应的受剪极限承载力计算方法 ,并对两者做了比较分析 ,最后给出了采用CFRPs对混凝土梁进行抗剪加固的一些设计建议。

Based on the experiment of twenty concrete beams strengthened in shear with carbon fiber reinforced polymer sheets,and on the experimental results reported by various researches at home and aboard,the failure mechanism of beams strengthened in shear with CFRPs is studied.According to the two different failure types,the corresponding method to make out the ultimate shear capacity is put forward,and some comparisons and analyses are made,in the end,some design suggestions on concrete beams strengthened in shear with CFRPs are given.