摘要
板-胶剥离破坏是混凝土表层嵌贴CFRP板条加固方式常见的破坏形式。如何求得此种剥离破坏的极限粘结承载力至为重要。目前只有通过数值法反复试算,但计算工作量较大。本文根据试验所得的粘滑曲线和假定的粘结失效准则导得了极限粘结承载力的计算公式,计算结果与试验结果和已有的数值法计算结果吻合较好。该法计算简便,可供实际加固设计参考采用。
Debonding at CFRP plate and adhesive interface is a common failure mode for NSM CFRP plate to concrete. It＇s important to get the bond failure load. At present, there is only numerical analysis method through iteration to get the bond failure load, but it＇s time consuming. Based on the τ-s curve from the test and the presumed bond failure criterion, this paper gets the formula of bond failure load and also presents it tallies well with the test results and the existing numerical analysis method. It can be used as a reference formula in practice for its simple operation.
出处
《科技通报》
2006年第6期792-795,共4页
Bulletin of Science and Technology
基金
国家自然科学基金资助项目(批准号:50378084)
关键词
表层嵌贴
CFRP
极限粘结承载力
near surface mounted
carbon fiber-reinforced polymer
bond failure load
