CFRP加固高强混凝土柱抗剪性能的分析研究

利用碳纤维改善混凝土结构的抗剪性能是一种有效的加固方法。通过试验和有限元分析方法对碳纤维布改善高强混凝土柱的抗剪性能进行了分析研究。考虑了轴压比、纤维布粘贴方式、纤维布用量对加固效果的影响。试验结果表明,加固后柱的承载力得到提高,延性得到改善。有限元分析结果与试验结果吻合较好,试件的抗剪性能在用碳纤维布加固后得到了明显提高,验证了碳纤维抗剪加固方法的有效性,说明了分析中合理采用有限元模型,可以较好地预测碳纤维加固混凝土柱抗剪受力性能,为今后进行相关的有限元分析提供参考。

Research on shearing capacity of high-strength concrete column confined by CFRP

Using carbon fiber polymer is an effective method to improve the shear performance of concrete structure.Experiments and finite element analysis were conducted to study the shear property of high-strength concrete columns reinforced with CFRP.Such design parameters,as actual axial load,quantity and bundling form of carbon fiber-reinforced polymer,are considered as the factor affecting test result.The results show that the load-carrying capacity increased and the ductility improved after reinforcement.Finite element analysis results are in good agreement with the test results,which indicates the effectiveness of the carbon fiber reinforced method and the model of finite element,and analysis method is appropriate.