KSCE Journal of Civil and Environmental Engineering Research (대한토목학회논문집)

Korean Society of Civil Engeneers (대한토목학회)
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A Study on the Development of FBG-Based Load Measurement System for Structural Health Monitoring of Highway Bridge

도로교 안전관리 모니터링 시스템의 입력하중 측정을 위한 FBG 기반 하중 측정시스템 개발에 관한 연구

  • 이규완 ((주)카이센, 명지대학교 토목환경공학과) ;
  • 한종욱 (명지대학교 하이브리드구조실험센터 기술본부) ;
  • 김철영 (명지대학교 토목환경공학과) ;
  • 박영석 (명지대학교 토목환경공학과)
  • Received : 2019.05.31
  • Accepted : 2019.07.22
  • Published : 2019.08.01
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Abstract

A long-term bridge monitoring system has been introduced and is under operation for long-term safety management of the structure. However, it is difficult to assess the condition of the quantitative structural system as it only measures responses and does not measure input loads. To overcome these shortcomings, FBG (Fiber Bragg Grating)-based input load measurement sensors were developed in this paper for measuring highway bridge input loads and their validity was verified through laboratory tests.

구조물의 장기적인 안전관리를 위하여 교량 장기계측시스템이 도입되어 운영 중에 있다. 그러나 일반적인 교량 장기계측시스템은 응답만 측정하고 입력하중은 측정하지 못하고 있기 때문에, 추세분석에 의한 관리기준 상회여부만을 판단하고 있어 정량적인 구조계의 상태평가가 어려운 실정이다. 이러한 단점을 극복하기 위하여 본 논문에서는 도로교 입력하중 측정을 위한 FBG 기반 입력하중 측정센서를 개발하였으며, 실내실험을 통하여 그 타당성을 검증하였다.

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References

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