【摘要】 纤维增强聚合物筋作为一种轻质、高强且具有优异耐腐蚀性的新型基材，适用于替代普通钢筋以解决处于恶劣服役环境下的混凝土结构耐久性问题。对国内外有关FRP筋耐久性能、FRP筋与混凝土的界面粘结性能以及FRP筋混凝土梁的受弯、受剪及耐久性能的研究成果进行了梳理和总结。结果表明：处在侵蚀条件下FRP筋的抗拉性能仍会遭到削弱；FRP筋表面形式、直径及粘结长度是影响FRP筋与混凝土界面粘结性能的主要因素；针对FRP筋混凝土梁脆性破坏的特点，可从混合配筋和掺加钢纤维等方面探讨提高其承载能力及延性的有效措施；盐溶液侵蚀、冻融循环、长期静载作用是导致FRP筋混凝土梁长期耐久性降低的主要原因。更多还原

【Abstract】 Fiber reinforced polymer(FRP) bars are a new type of substrate material with their inherent advantages of light-weight, high strength and excellent corrosion resistance, which are suitable for replacing ordinary steel bars to solve the durability problems of concrete structures subjected to harsh service environments. The research results on the durability of FRP bars, the interfacial bonding performance between FRP bars and concrete, and the bending, shear and durability of concrete beams reinforced with FRP bars were reviewed and summarized. The results indicate that the tensile properties of FRP bars under erosion conditions are still weakened. The surface form, diameter and bond length of FRP bars are the main factors affecting the interfacial bonding performance between FRP bars and concrete. In view of the brittle failure characteristics of concrete beams reinforced with FRP bars, effective measures to improve their load-bearing capacity and ductility can be explored in terms of hybrid reinforcement and steel fiber doping. Salt solution erosion, freeze-thaw cycles, and long-term static loading effects are the main reasons for the reduction of the long-term durability of concrete beam reinforced with FRP bars.更多还原