Smart Structures and Systems

  • 제11권1호
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  • Pages.1-17
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  • 2013
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  • 1738-1584(pISSN)
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  • 1738-1991(eISSN)
테크노프레스 (Techno-Press)
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DOI QR코드

DOI QR Code

Linear system parameter as an indicator for structural diagnosis of short span bridges

  • Kim, Chul-Woo (Department of Civil and Earth Resources Engineering, Graduate School of Eng., Kyoto University) ;
  • Isemoto, Ryo (Department of Civil and Earth Resources Engineering, Graduate School of Eng., Kyoto University) ;
  • Sugiura, Kunitomo (Department of Civil and Earth Resources Engineering, Graduate School of Eng., Kyoto University) ;
  • Kawatani, Mitsuo (Department of Civil Engineering, Graduate School of Eng., Kobe University)
  • 투고 : 2011.11.29
  • 심사 : 2012.11.30
  • 발행 : 2013.01.25
⟨ 이전 논문 다음 논문 ⟩

초록

This paper intended to investigate the feasibility of bridge health monitoring using a linear system parameter of a time series model identified from traffic-induced vibrations of bridges through a laboratory moving vehicle experiment on scaled model bridges. This study considered the system parameter of the bridge-vehicle interactive system rather than modal ones because signals obtained under a moving vehicle are not the responses of the bridge itself but those of the interactive system. To overcome the shortcomings of modal parameter-based bridge diagnosis using a time series model, this study considered coefficients of Autoregressive model (AR coefficients) as an early indicator of anomaly of bridges. This study also investigated sensitivity of AR coefficients in detecting anomaly of bridges. Observations demonstrated effectiveness of using AR coefficients as an early indicator for anomaly of bridges.

키워드

참고문헌

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