考虑二次受力碳纤维布加固混凝土构件正截面承载力计算  

Calculating Method for Bending Strength of Concrete Bending Member Strengthened with CFRP Considering the Secondary Load

作　　者：胡孔国 陈小兵 岳清瑞 李荣 孙燕[2] 

机构地区：[1]国家工业建筑诊断与改造工程技术研究中心,北京100088 [2]中国矿业大学北京校区,100081

出　　处：《建筑结构》2001年第7期63-65,共3页Building Structure

摘　　要：提出了考虑二次受力时碳纤维布加固混凝土构件正截面承载力计算的一种方法 ,理论计算值与试验结果吻合较好 ,表明该方法的正确性。文中还提出了应对碳纤维布锚固长度、剥离应力、极限状态下碳纤维布的应变、强剪弱弯等进行验算的建议。A method for calculating the yielding and ultimate load capacity of members strengthened with CFS is proposed when the effect of the secondary load is considered. Calculations with the formula put forward are in good agreement with the experimental results. It is advised that the anchorage length of CFS,peeling stress,the strain of CFS under the ultimate load and the shear capacity should also be verified to insure enough ductility of the member.

关 键 词：二次受力 碳纤维布 混凝土构件 正截面承载力 计算 

分 类 号：TU375[建筑科学—结构工程]