关键词: FRP;芳纶纤维增强聚合物;界面性能;往复荷载;有效粘结长度;剥离承载力;

Abstract: Performance of Fiber Reinforced Polymer(FRP) reinforcing concrete relies on the effective bond of FRP-to-concrete interface.Although many studies have been carried out to study bond behavior of the interface between FRP sheet and concrete, the research mainly focuses on static load, and there is still a lack of test data on FRP-to-concrete interface under dynamic load.In this paper, the dynamic bond behavior between aramid fiber reinforced polymer sheet and concrete under cyclic loading is studied.The results show that the ultimate load capacity, ductility and the maximum bond shear stress decrease and the effective bond length increases under cyclic loading.The loading and unloading stiffness of the specimen degenerates with the increase of loading and unloading cycles

Key words: Fiber Reinforced Polymer; aramid fiber reinforced polymer; interface performance; cyclic loading; effective bond length; carrying capacity of stripping;