中文摘要：

为研究碳纤维约束高强混凝土单轴受压性能和应力一应变关系，进行了碳纤维约束高强混凝土棱柱体单轴受压试验，考察了混凝土强度、碳纤维包裹层数等参数对其单轴受压性能的影响规律；将试验结果与国内外七个碳纤维约束混凝土棱柱体的应力一应变模型进行了比较，发现已有模型不能准确反映碳纤维约束高强混凝土的单轴受压性能；选取与试验结果整体趋势相近的Youssef模型，依据本文试验结果对应力一应变曲线的特征点进行了修正，建立碳纤维约束高强混凝土的应力一应变模型，模型预测结果与试验结果吻合较好。

英文摘要：

In order to investigate uniaxial compression property and stress-strain models for high strength concrete （HSC） confined by carbon fibre reinforced polymer （CFRP）, uniaxial compressive tests of CFRP-confined high strength concrete prisms were carried out. The influence of concrete strength and layers of CFRP on the uniaxial compressive performance of CFRP-confined high strength concrete were studied. It was found that the existing models cannot accurately reflect the uniaxiat compressive performance of CFRP-confined high strength concrete by comparing seven stress-strain models with test results. Based on the Youssef＇ s model, feature points of stress-strain relationship were modified according to test results and a new stress-strain model was developed for CFRP-eonfined high strength concrete. The predicting results of the proposed model agree well with test data.