Behaviour of square FRP-Confined High-Strength Concrete Columns under Eccentric Compression

5th Annual International Conference on Material Science and Environmental Engineering

材料科学;生态环境科学

Pour, Ali Fallah^1 ; Gholampour, Aliakbar^1 ; Zheng, Junai^1 ; Ozbakkaloglu, Togay^1

School of Civil, Environmental and Mining Engineering, University of Adelaide, SA

5005, Australia^1

关键词: Axial stress-strain curves;    Carbon fibre reinforced polymer;    Eccentric compression;    High strength concretes;    High-strength concrete columns;    Load displacements;    Load eccentricity;    Square cross section;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/301/1/012058/pdf
DOI  :  10.1088/1757-899X/301/1/012058

来源: IOP

【 摘 要 】

This paper presents the results of an experimental study on the effect of load eccentricity on the axial compressive behaviour of carbon fibre-reinforced polymer (CFRP)- confined high-strength concrete (HSC) columns with a square cross-section. The axial loading was applied to the specimens at six different load eccentricities ranging from zero to 50 mm. The results show that the load eccentricity significantly influences the axial load-displacement and axial stress-strain behaviour of FRP-confined HSC. Increasing the load eccentricity leads to an increase in the ultimate axial strain but a decrease in the ultimate axial stress and second branch slope of the axial stress-strain curve.