CFRP抗剪加固钢筋混凝土梁承载力计算方法  

Shear Design Methodology for Strengthening RC Beams with Externally Bonded CFRP Sheets

作　　者：张京穗[1] 张国栋[1] 李少丽[1] 

机构地区：[1]三峡大学土木水电学院,湖北宜昌443002

出　　处：《三峡大学学报（自然科学版）》2007年第3期222-225,共4页Journal of China Three Gorges University：Natural Sciences

摘　　要：加固梁抗剪承载力提高幅度的大小与其破坏形式密切相关,目前的加固梁抗剪承载力计算很少考虑剥离破坏对抗剪承载力的影响.针对碳纤维片材加固混凝土技术规程中提出的混凝土梁受剪加固承载力计算模式的不确定性,提出了在确定加固梁的承载力时,应考虑外部粘贴碳纤维复合材料剥离破坏和碳纤维片材断裂破坏两种抗剪承载力计算模式,通过8根梁的试验结果印证了计算方法的正确性和有效性.The externally bonded CFRP for shear strengthening RC beams is studied. The shear capacity increasing of strengthening beams is related with the form of destruction. Calculation of shear capcaity is very little considered about debonding destruction. The form of destruction of strengthening R（ beam is generalized from test result; and the formula of shear strengthening is proposed.

关 键 词：纤维复合材料 加固 抗剪承载力 剥离破坏 

分 类 号：TU375.1[建筑科学—结构工程]