新型大断裂应变FRP约束混凝土圆柱的轴压性能

Behavior of circular concrete columns confined by new-typed large rupture strain FRP under axial compression

对新型大断裂应变FRP约束混凝土圆柱的轴压性能进行变参数的应力-应变全曲线研究,研究参数有FRP种类、包裹层数、非约束混凝土强度等。新型大断裂应变FRP约束混凝土的轴压性能与CFRP约束混凝土、GFRP约束混凝土、AFRP约束混凝土的轴压性能相比较,比较发现新型大断裂应变FRP约束混凝土轴压性能优于一般FRP约束混凝土。

Research on the stress-strain curves of concrete confined by new-typed large rupture strain FRPs with variable parameters have been carried out.The considering parameters includes types of FRP,wrapping layers and strength of unconfined concrete.Axial compressive behavior of concrete confined by large rupture strain FRPs is compared with that of concrete confined by CFRP,GFRP and AFRP,demonstrating that the superiority of concrete confined by new-typed large rupture strain FRPs with good prospect in civil engineering.