MECHANICAL BEHAVIOR OF AFRP-CONFINED HIGH STRENGH CONCRETE SHORT COLUMN SUBJECTED TO AXIAL COMPRESSION
Several regular stress-strain relationship models of Fiber-Reinforced Polymer (FRP)-confined concrete are introduced. Basing on the given example of Aramid fiber Reinforced Plastic (AFRP)-confined high strength concrete short column subjected to axial compression, the results of each model are compared and analyzed. By properly selecting the stress-strain relationship models of the high strength concrete and the AFRP, the finite element model of the short column is established and its mechanical behaviors subjected to axial compression are simulated using general Finite Element Method (FEM). The simulating results show that the Spoelstras stress-strain relationship model is more suitable to high strength concrete confined by AFRP. The results of the numerical simulation are in good agreement with the theoretical model and the experimental date. The load support capabilities of the column are enhanced evidently. And it is feasible to simulate the mechanical behavior of AFRP-confined high strength concrete member by FEM.
Bao-Dong Liu Xiao-Fei Niu Hou-Hai Xu
School of Civil Engineering and Architecture, Beijing Jiaotong University, Beijing 100044, P.R. China
国际会议
长沙
英文
1177-1181
2007-11-19（万方平台首次上网日期，不代表论文的发表时间）