Research on Interfacial Shear Stress of Debonding Plate-end of RC Beam Strengthened with CFRP
Debonding of CFRP plate-end is a mainly premature failure of reinforced concrete members strengthened by means of externally bonded plate, which is mainly due to both shear and normal stress induced in the plate-end. By the experiment of 8 reinforced concrete beams strengthened with CFRP, the paper studies the interfacial shear stress distribution. The results show that unsheeted length (the distance between CFRP plate-end and the nearer support), layer number and concrete strength have the influence on interfacial shear stress and among them unsheeted length is the main influence factor and also decides debonding load. According to the results of experiments, the paper fits the formula of maximum interfacial shear stress and the calculated results of formula are in reasonable agreement with the test data.
CFRP unsheeted length interfacial shear stress strengthening debonding
LI Yan LIU Ze-jun MENG Hai-ping
School of Civil Engineering, Henan Polytechnic University, Jiaozuo 454003, Henan, China
国际会议
The 2007 International Symposium on Safety Science and Technology(2007采矿科学与安全技术国际学术会议)
河南焦作
英文
2891-2896
2007-04-17（万方平台首次上网日期，不代表论文的发表时间）