碳纤维布加固梁抗弯荷载试验研究

通过碳纤维布加固模型试验梁的破坏荷栽试验,研究了钢筋混凝土梁在采用碳纤维布加固后,混凝土、钢筋及碳纤维布的应变变化和梁的裂缝,挠度发展,分析钢筋应变与碳纤维应变变化的协同关系,并对平截面假定进行检验.基于相关规范,将规范方法计算值与破坏荷载试验结果进行对比分析,为实际工程加固设计提供参考和依据.

Experiment Research on Concrete Beams Reinforced by Carbon Fiber Sheet

By the flexural capacity tests of beams reinforced by the carbon fiber sheet,the strains of concrete,rebar and carbon fiber were studied,as well as the crack and deformation of beams.Based on the test data,the strengthening effects were assessed comprehensively.At the same time,the numerical relationships of strain of different materials were analyzed,and the plane hypothesis was verified.Finally,the test results were compared with the values from various standards,and the deficiencies and reasons were put forward.The research work can be as design reference for the practical project.