(1 长安大学建工学院 西安 710061； 2 上海市建筑科学研究院有限公司博士后工作站 200032)
【提要】 通过7个足尺混凝土梁柱节点的低周反复加载试验，对应用碳纤维布的两种空间框架节点加固方法及一种平面框架节点加固方法进行了分析研究。试验结果表明，所采用的不同加固方法均能够有效地增强节点核心区的抗剪性能，改变节点的剪切破坏模式，提高节点的承载力与延性，使得加固节点的强度退化和刚度退化得以滞后，耗能能力得到大幅度提高，从而有效改善了梁柱节点组合体的抗震性能。
【关键词】 碳纤维布 加固 梁柱节点
Experimental Study on Seismic Behavior of RC Beamcolumn Joints Upgraded by CFR
P Sheets/Wang Bu1，2,Wang Pu2 (1 College of Civil Engineering,Ch
angan University,Xian 710061,China; 2 Postdoctoral Workstation of Shanghai R
esearch Institute of Building Science，Shanghai 200032,China)
Abstract:To verify two seismic retrofit methods for joints in twoway frames and another
 seismic retrofit method for joints in oneway frames using CFRP sheets,seven f
ull scale interior RC beamcolumn joints were tested under quasistati
c cycle load. The test results showed that the seismic behaviors of strengthened
 joints were improved effectively by the schemes,which were successful in enhan
cing the shear capacity of joint core,changing the shear mode of failure,incre
asing the loadcarrying capacity and ductility,delaying the strength degradatio
n and stiffness degradation,upgraded the energy dissipation capacity.
Keywords:CFRP sheets;strengthening;beamcolumn joints

*上海市建设技术发展基金会科研项目(A0105150)。