Abstract: Recent years, a lot of research has been done on the mechanical properties of FRP bars and FRP reinforced concrete structures at home and abroad. Durability of FRP bars, bonding mechanism between FRP bars and concrete, mechanical behavior of FRP reinforced concrete beams and columns, and seismic performance of FRP reinforced concrete columns and frame structures are the main research directions. The existing studies show that the tensile strength of the FRP bars in most of the bending members can be fully utilized as the longitudinal reinforcement, but the structure is prone to brittle failure. The calculation method of the current code is not suitable for the calculation of this kind of components. FRP bars instead of steel bars as the main force tendons will lead to lower compressive strength and poor ductility. Fibrous concrete can significantly improve the ductility of FRP reinforced concrete members, and the seismic behavior of composite reinforced columns with FRP bars and reinforced bars is obviously better than that of FRP reinforced columns. The next step is to establish a reliable durability test and evaluation method for FRP materials and components; to improve the bonding behavior between FRP tendons and concrete, especially modified concrete; to improve the calculation method of bearing capacity of FRP reinforcement members in current codes; to establish seismic design system of FRP reinforcement members.

Key words: FRP bars, concrete, bonding properties, mechanical properties, frame structure, seismic performance