CFRP包裹高强混凝土柱轴心抗压性能试验

Experiment on axial compressive properties of high-strength concrete column wrapped with CFRP

通过19根CFRP包裹高强混凝土柱的轴心受压试验,研究了截面形状和不同包裹量对包裹后的高强混凝土柱强度和变形的影响。试验表明：外包1-3层CFRP布的圆形试件承载力分别比未包裹试件提高了11%、21%、42%,纵向变形分别提高了23%、271%、330%。试验结果确定了CFRP约束高强混凝土强度和极限应变的计算模型。

Through the axial compression test on 19 high-strength concrete columns wrapped with carbon fiber reinforced plastics（CFRP）,the influence of section shape and different confinement content on the strength and ductility of wrapped high-strength concrete column has been studied.The experimental results indicate that the bearing capacity of circular specimens wrapped with 1~3 CFRP cloths was increased 11%,21% and 42% compared with the circular specimens without CFRP,and vertical deformation was increased 23%,271% and 330%,respectively.The calculation model of strength and ultimate strain of high-strength concrete wrapped with CFRP is made based on this results.