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자료유형
학술저널
저자정보
Yim, Jinsuk (Samsung C & T Company) Wang, Ming L. (Department of Civil and Environmental Engineering, Northeastern University) Shin, Sung Woo (Department of Safety Engineering, Pukyong National University) Yun, Chung-Bang (School of Urban and Environmental Engineering, Ulsan National Institute of Science and Technology) Jung, Hyung-Jo (Department of Civil and Environmental Engineering, Korea Advanced Institute of Science and Technology) Kim, Jeong-Tae (Department of Ocean Engineering, Pukyong National University) Eem, Seung-Hyun (Department of Civil and Environmental Engineering, Korea Advanced Institute of Science and Technology)
저널정보
테크노프레스 Smart structures and systems Smart structures and systems 제12권 제3호
발행연도
2013.1
수록면
465 - 482 (18page)

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Recently, a novel stress sensor, which utilizes the elasto-magnetic (EM) effect of ferromagnetic materials, has been developed to measure stress in steel cables and wires. In this study, the effectiveness of this EM based stress sensors for monitoring of the cable tension force of a real scale cable-stayed bridge was investigated. Two EM stress sensors were installed on two selected multi-strand cables in Hwa-Myung Bridge, Busan, South Korea. Conventional lift-off test was conducted to obtain reference cable tension forces of two test cables. The reference forces were used to calibrate and validate cable tension force measurements from the EM sensors. Tension force variations of two test cables during the second tensioning work on Hwa-Myung Bridge were monitored using the EM sensors. Numerical simulations were conducted to compare and verify the monitoring results. Based on the results, the effectiveness of EM sensors for accurate field monitoring of the cable tension force of cable-stayed bridge is discussed.

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