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Title |
PZT Sensor-based Structural Health Monitoring for CFRP Laminated Concrete Structures
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Authors |
류성찬 ; 김주원 ; 이창길 ; 박승희 ; 박선규 |
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Keywords |
콘크리트 균열 ; CFRP 부착파괴 ; PZT센서 ; 임피던스 기법 ; Concrete crack ; CFRP debonding ; PZT ; Structural Helath Monitoring ; Impedance method |
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Abstract |
A CFRP (Carbon Fiber-Reinforced Plastic) strengthening method is being very widely used to increase the load-carrying capacity of host structures, especially for bridges. However, not only flexure and shear failures but debonding failure also might occur in CFRP strengthened concrete structures. The CFRP debonding failure would cause a collapse accident of the host structure. Therefore, real-time health monitoring about the CFRP bonding condition is strongly required. In this study, a feasibility of the impedance-based damage detection method using PZT sensors is investigated through a series of experimental study monitoring both concrete cracks and CFRP debonding defects.
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