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http://dx.doi.org/10.11112/jksmi.2010.14.5.072

PZT Sensor-based Structural Health Monitoring for CFRP Laminated Concrete Structures  

Ryu, Sung-Chan (성균관대학교, u-City 공학과)
Kim, Ju-Won (성균관대학교, u-City 공학과)
Lee, Chang-Gil (성균관대학교, 건설환경시스템공학과)
Park, Seung-Hee (성균관대학교, 사회환경시스템공학과)
Park, Sun-Kyu (성균관대학교, 사회환경시스템공학과)
Publication Information
Journal of the Korea institute for structural maintenance and inspection / v.14, no.5, 2010 , pp. 72-78 More about this Journal
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.
Keywords
Concrete crack; CFRP debonding; PZT; Structural Helath Monitoring; Impedance method;
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