|
Title |
Bond-Slip Model of Interface between CFRP Sheets and Concrete Beams Strengthened with CFRP
|
|
Authors |
김성배 ; 김장호 ; 남진원 ; 강석화 ; 변근주 |
|
Keywords |
CFRP시트 ; 콘크리트구조물 ; 경계면 부착거동 ; bond-slip model ; 부착강도 CFRP sheets ; concrete structure ; interface behavior ; bond-slip model ; bond strength |
|
Abstract |
External bonding of carbon fiber reinforced plastic sheets has recently emerged as a popular method for strengthening reinforced concrete structures. The behavior of CFRP-strengthened RC structure is often controlled by the behavior of the interface between CFRP sheets and concrete. In this study, a review of models on bond strength, bond-slip, and interfacial stresses has been first carried out. Then a new bond-slip model is proposed. The proposed bond-slip model has bilinear ascending regions and exponential descending region derived from modifications mode on the conventional bilinear bond-slip model. The comparison of the results with those of existing experiment researches on bond-slip models indicate good agreements.
|