摘要
分别对外贴CFRP板加固钢筋混凝土梁、内嵌CFRP板加固钢筋混凝土梁(采用不同粘结材料进行粘结)、未加固钢筋混凝土梁进行静力受弯试验,并对试件承载力、荷载-跨中挠度曲线、荷载-应变曲线以及试验梁的裂缝形态进行分析。试验结果表明:内嵌碳纤维板加固法可以更好的提高梁的抗弯承载力,约束裂缝的发展;以水泥砂浆为粘结材料的内嵌碳纤维板加固梁承载力、延性等性能都较好,具有明显的经济优势。
The test group experimented on the RC beams （the conventional beam, the strengthened beam with CFRP plate on the surface and three strengthened beams with Near-Surface Mounted with different adhesive materials） under static bends load. This paper analyzed the bearing capacity, load-deflection curve, load-strain curve and fracture shape of specimens. The test results shows that the strengthened beams with near surface mounted CFRP plate can improve the bending strength and inhibit the crack growth. The bending strength and ductility of the strengthened beams with near surface mounted CFRP plate bonded by cement mortar were good, and with evident economic advantage.
出处
《华北地震科学》
2013年第B08期79-82,共4页
North China Earthquake Sciences
关键词
内嵌CFRP板
加固梁
粘结材料
承载力
Near Surface Mounted CFRP plate
strengthened beams
adhesive materials
bearing capacity
