摘要

Within the body of defective steel structure strengthened with CFRP, besides CFRP is the main factor influencing the reinforcement, the relative position of CFRP with defects and defect depth also have important effect on the reinforcement. This paper took the static tensile test on 5 groups of non-reinforced, 5 groups of front-reinforced and 5 groups of back-reinforced the small area ellipsoid defective steel plate. Discussed the reinforcement effect whether are the same both the front-reinforced and the back-reinforced. And the influence law was obtained on defect depth to the reinforcement effect. Test results show that: the defect surface strengthening and non defect surface strengthening both can improve the yield bearing capacity of the component. And the enhancement effect of defect surface reinforcement is better than that of non defect surface reinforcement. But the effect is not significant for the ultimate bearing capacity of the component.