[提要]  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。
[关键词]  二次受力  计算方法  加固  碳纤维布

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.
Keywords: secondary load;  calculating method;  rehabilitation; carbon fiber sheet( CFS)