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Title |
Crack and Debonding Donitoring of RC Beams Strengthened with CFRP Plates
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Keywords |
콘크리트 균열 ; CFRP 부착파괴 ; PZT센서 ; 임피던스 기법 Crack ; Debonding ; CFRP ; Helath monitoring ; Impedance method |
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Abstract |
A CFRP (Carbon Fiber-Reinforced Plastic) strengthening method being widely used to increase the load-carrying capacity of structures is very suitable for existing bridge structures. However, not only flexure and shear failures but also debonding failure might be additionally occured in reinforced concrete(RC) beams strengthened with the CFRP plates. The CFRP debonding failure would cause a brittle fracture of the beam. Therefore, health monitoring for the CFRP bonding condition is strongly required. In this study, a feasibility of the impedance-based damage detection method using PZT sensors was investigated through a series of experimental studies for realtime structural health monitoring(SHM) for the CFRP laminated concrete structures.
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