【摘要】 通过8组CFRP布约束混凝土棱柱体试件的轴心受压试验,研究其受力性能。通过分析碳纤维布加固量、粘贴方式、纤维布条带宽度和间距等不同试验参数对约束效果的影响,推导验证CFRP约束混凝土棱柱体的应力-应变关系模型。分析结果表明:各种形式碳纤维包裹的混凝土棱柱体的承载力都有一定程度的提高,延性增大。更多还原

【Abstract】 The properties of CFRP confining concrete column through eight groups columns subjected to axial loading;various design parameters,such as amounts of CFRP sheets,width of straps and spacing of straps,have been considered.Based on the test results,deducing and validating the stress-strain relationship model of CFRP confining concrete prism.The analyses results are: The axial compressive strength and ductility of concrete prism wrapped by CFRP sheets or CFRP straps have all increased to a certain degree.更多还原