摘要
根据7个试件的加载试验,着重研究了表层嵌贴CFRP抗剪加固梁的破坏模式和极限承载力。结果表明,侧面嵌贴CFRP板条可大大提高未配箍筋混凝土梁的抗剪承载力,最大可提高86%;而且比目前工程应用最多的表面粘贴加固方法更有效。同时详细描述和分析了表层嵌贴CFRP抗剪加固混凝土梁的主要破坏模式,即梁侧面FRP-混凝土保护层剥离破坏。
On the basis of the shear tests of seven RC beams, the shear capacity and failure modes were investigated. As the results of the tests, shear capacity of the beams with NSM CFRP strips on sides increased 86% at most compared to the beams without shear reinforcement. The test also shows that the shear strengthening with NSM FRP strips are much more effective than the enternally bonded FRP one. The main failure mode of beams shear strengthened with NSM FRP strips, splitting of FRP-Concrete cover （SFC）,is also described and discussed.
出处
《科技通报》
2007年第5期718-722,共5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
FLIP
表层嵌贴
抗剪加固
钢筋混凝土梁
Fiber-reinforced polymer
near surface mounted
shear strengthening
RC beams
