碳纤维布加固钢筋混凝土圆柱的轴心受压试验研究
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赵海东 赵 鸣 张 誉
(同济大学 上海 200092)[提要] 通过对钢筋混凝土圆柱模型缠绕碳纤维布的轴心受压试验研究,详细介绍了用碳纤维布加固后的圆柱破坏特征,其受力性能及破坏机理,碳纤维布约束混凝土与钢筋及钢管约束混凝土的差异。并提出了用碳纤维加固钢筋混凝土柱的轴心受压承载力计算方法。
[关键词] 碳纤维 碳纤维布 构件加固 钢筋混凝土柱 轴心受压A test of concrete circular-columns wrapped with carbon fiber fabric under axial compression is presented. The performing characteristic and confinement mechanism of CFRP-wrapped columns are demonstrated in details. A satisfying theoretical model is suggested to predict the ultimate strength of CFRP-wrapped circular-columns under axial compression.
Keywords: carbon fiber reinforced plastics(CFRP); strengthening;concrete column; axial compression