Title Structural Behavior of the RC Beams Strengthened at Soffit with Epoxy-Bonded Carbon Fiber Sheets
Authors 신영수 ; 최완철 ; 홍기섭 ; 홍영균
Page pp.249-258
ISSN 12251674
Abstract The repair of initially loaded reinforced concrete(RC) beams with epoxy bonded carbon fiber sheests(CFS) was experimentally investigated. CFS is attractive for the application due to its light weight, the high tensile strength, handability, resistance to corrosion and good appearance after repair. The RC beams were initially loaded to approximately 70 percent of the ultimate flexural capacity and subsequently repaired with CFS bonded to the soffit of the beam. The CFS thickness and length were varied to assess the peeling failure at the curtailment of CFS. The behavior of the repaired beams was represented by load-deflection curves and failure modes were discussed. The test results indicate that CFS is very effective for strengthening the damaged beams and controlling deflections of the repaired beams.