【摘要】 根据碳纤维布优良的材料性能,提出了3种基于碳纤维布的节点抗震加固方法。通过6个混凝土T型外节点试件的低周反复加载试验,对所提出的3种节点抗震加固方法进行了检验和对比。试验结果表明:所采用的不同加固方法均能够有效增强节点核心区的抗剪性能,改变节点的剪切破坏模式;不同的加固方法对于节点组合体在滞回特性、延性性能以及承载力等方面抗震性能的改善效果存在各自的特点。更多还原

【Abstract】 According to the excellent material characteristics of CFRP sheets,three seismic resistance methods based on CFRP sheets are designed for RC beam-column joints.These methods are verified by the quasi-static tests of six RC T-joints.The results show that all the tested strengthening methods are successful in enhancing the shear capacity of joint cores and changing the shear mode of failure.The strengthening effects in aspect of hysteretic characteristic,ductility and strength of beam-column joints are also different in these methods.1 tab,7 figs,10 refs.更多还原