| Title |
Analysis of CFRP-strengthened RC Beam-Column Joints |
| Authors |
Cha Ji-Hwa ; Lee Jae-Hong ; Lee Ki-Hak |
| Keywords |
Beam-Column Joint ; Seismic Retrofitting ; Reinforced Concrete ; CFRP(Carbon Fiber Reinforced Plastics) ; Earthquake Engineering |
| Abstract |
Many reinforced concrete(RC) structures designed without seismic provisions have experienced brittle shear failures in the beam-column joint area, and resulted in large permanent deformations and structural collapse. In this reason, effective and economical rehabilitation techniques for beam-column joints are required. The present paper describes the seismic retrofit method for RC beam-column joints by using carbon fiber reinforced plastics(CFRP). An analytical model based on the nonlinear finite element method is adopted to investigate the behavior of CFRP-strengthened RC beam-column joints subjected to cyclic loading. The proposed analytical model is compared with a series of test results and found to be reasonably accurate in predicating the structural behavior of CFRP-strengthened beam-column joints. |