碳纤维布加固钢筋混凝土梁的受弯承载力计算

Calculations of flexural strengths for reinforced concrete beams repaired with CFRP

采用国家标准《混凝土结构设计规范GB50010 2002》附录C规定的混凝土单轴本构关系,并考虑加固构件的二次受力效应,提出碳纤维布加固钢筋混凝土受弯构件的抗弯承载力实用算法.利用赵彤、吴刚等人给出的试验加固梁进行验算,理论计算与实验数据符合较好,表明本算法可供工程设计参考.

Based on the general assumptions for the ultimate flexural strengths of reinforced concrete beams, the (equations) of the ultimate resistance moments of the concrete flexural members repaired with carbon fiber reinforced polymer were proposed for the design calculations. The effect of the secondary loads of the repaired members was considered in the derived equations. The equations were applied to calculate the repaired beams given in the (references). The agreement between the theoretical and the experimental results was desirable. It showed that the (equations) derived in the paper were applicable to the design calculations in practical engineering.