Experimental Evaluation of Ductility and Load Carrying Capacity in Beam-Column Exterior Joints Enhanced with GFRP Subjected to Cyclic Loading

An experimental investigation of the behavior of retrofitted FRP wrapped exterior beam-column joints under seismic conditions is presented. Also, the experimental study on exterior beam-column joint of a multistory reinforced concrete building under the seismic has been analyzed using ANSYS software. Two specimens were cast and tested to failure during the present investigation. One is control specimen test up to 70% of the ultimate load (without FRP), and another specimen test up to 70% of the ultimate load (with one layer of FRP).The results show that an increase about 18% has been obtained by retrofitting with FRP sheets in load carrying capacity. Also an increase about 54% has been obtained by retrofitting with FRP sheets in cumulative ductility.