EXPERIMENTAL INVESTIGATION OF AN RC EXTERIOR BEAM-COLUMN JOINT BEHAVIOR STRENGTHENED WITH FRP
Beam Column joints experience large shear forces during seismic events and may undergo brittle failure which is not preferred.Eminent scholars suggested different technologies and methods to strengthen the beam column joints.FRPs,due to its high strength to weight ratio and effectiveness in strengthening shear,flexural and axial capacity of beams and columns,are suggested as retrofitting materials for strengthening RC structural members.The present research is under taken to study the behavior of RC exterior beam-column joints which lack in shear reinforcement and strengthened by FRPs.In total,three models were prepared of which one joint was strengthened by Carbon FRP(CFRP)Fabrics and remaining two were control specimens with tie and without tie at joints.The samples were subjected to incremental cyclic loading provided by hydraulic jacks under constant axial or gravity load and their load-deformation behaviors were measured by dial gauges and video extensometer.The behavior of the strengthened joint were compared with the control model and it has been found that the joints without shear reinforcement undergo brittle failure under cyclic loading.However,their ductility increases with increased concrete strength.The joints strengthened with CFRPs showed better load bearing capacity with enhanced ductile behavior.
Exterior joint Cyclic Loading Joint behavior Ductility
Md.Kudrat-E-Jahan Fahim Ahmed Shofiq Ahmed Raquib Ahsan
Graduate Student,Bangladesh University of Engineering and Technology,Department of civil Engineering Bangladesh University of Engineering and Technology,Department of civil Engineering,Dhaka,Bangladesh
国际会议
新加坡
英文
1-9
2017-07-19（万方平台首次上网日期，不代表论文的发表时间）