FRP筋混凝土梁研究现状简述

Brief Introduction of Research Status of FRP Reinforced Concrete Beams

钢筋易锈蚀的特性严重影响了构件的耐久性,从而大大缩短了建筑物的安全使用寿命。纤维增强复合材料(FRP)筋是钢筋的一种潜在的替代物,具有广阔的应用前景。近年来,FRP筋混凝土梁受到了国内外学者的广泛研究。本文综述了FRP筋混凝土梁在常温状态下的抗弯和抗剪性能以及高温状态下构件受弯性能。并指出FRP筋混凝土梁与钢筋混凝土梁之间存在的主要性能区别,并对FRP筋混凝土梁的研究方向提出了展望。

The easy corrosion feature of steel bars seriously affects the durability of components and greatly shortens the safe service life of buildings.Fiber-reinforced plastic(FRP)is a potential substitute for steel bars and has broad application prospects.In recent years,FRP reinforced concrete beams have been extensively studied by scholars at home and abroad.The paper reviews the flexural and shear performance of FRP reinforced concrete beams at normal temperature and the flexural performance of components at high temperatures.It also points out the main performance difference between FRP reinforced concrete beams and reinforced concrete beams,and proposes a prospect for the research direction of FRP reinforced concrete beams.