玻璃钢/复合材料Issue(1)：50-59,10.
基于数值试验的FRP约束混凝土圆柱轴压性能研究
STUDY ON AXIAL COMPRESSION PERFORMANCE OF FRP CONFINED CONCRETE CYLINDER COLUMNS BASED ON NUMERICAL EXPERIEMNTS
摘要
Abstract
Fiber-reinforced Polymer (FRP) Confined Concrete Column (FCCC) have superior axial compressive capacity and ductility.It is difficult to make a comprehensive study about key parameters such as sec tional dimension,concrete strength and number of FRP layer,due to the common approach,specimens experiment.Firstly,FCCC's axial compressive test and simulation were reviewed.Then,a Finite Element (FE) model was created based on Drucker-Prager Constitutive and the validity of the FE model was verified based on the existing experimental results.Then,the axial compressive performance of FRP confined concrete column with different parameters was investigated using the verified FE model.Diameter of section,concrete strength grade and number of FRP layer were selected as key parameters and their ranges were 150 mm ～ 750 mm,C30 ～ C80 and 1 ～5,respectively.The results show that when the layers of FRP are constant,as the strength level of concrete increase,axial strength and ductility increase and decrease,respectively.When the concrete strength are constant,the axial bearing capacity and ductility of FCCC increases with increasing layers of FRP.When constraint amount of FRP and concrete strength are constant,confinement effect of FRP for inner concrete decreases with increasing diameter of section.The comprehensive studies about the effects of different parameters on the axial compression performance of FCCCs in this paper can provide a reference for further research and design of FCCCs.关键词
FRP约束混凝土柱(FCCC)/轴心受压/约束效应/Drucker-Prager模型/数值试验Key words
FRP confined concrete columns (FCCC)/axial compression/confinement effect/Drucker-Prager model/numerical experiment分类
通用工业技术引用本文复制引用
张冰,孙运楼,齐玉军..基于数值试验的FRP约束混凝土圆柱轴压性能研究[J].玻璃钢/复合材料,2018,(1):50-59,10.基金项目
国家自然科学基金项目(51308287) （51308287）
江苏省自然科学基金项目(BK20130936) （BK20130936）
