The failure pattern of prestressed AFRP sheets is fracture, but that of non-prestressed AFRP sheets is debonding. 承载力极限状态时，预应力梁为纤维布的断裂破坏，非预应力梁发生布与混凝土间局部脱粘破坏。
According to the results of the experiment and the nonlinear finite element analysis, we improve the form of the slabs strengthened by sheets and get a good effect. 根据试验以及有限元分析的结果，对采用纤维布加固方形板的形式进行了改进，并取得了较好的效果。
