Calibration of Health Monitoring System installed in the Railway Bridges

철도교 상시계측시스템의 교정 및 교정상수 설정에 관한 연구

  • 박준오 (한국철도기술연구원 철도토목연구팀) ;
  • 이준석 (한국철도기술연구원 철도토목연구) ;
  • 최일윤 (한국철도기술연구원 철도토목연구) ;
  • 민경주 ((주)철도안전연구소)
  • Published : 2002.09.01


A health monitoring system becomes a useful tool to obtain information on long term behavior of the important railway structures such as very long span and special type bridges. The health monitoring system not only gives the direct measurement data of the railway bridges but also provides the basic data on the maintenance of the structures. Therefore, periodic calibrations of the health monitoring system will be a necessary step toward precise and accurate assessment of the railway bridges. In this study, the calibration and gauge factor readjustment process made for the health monitoring system installed in the railroad bridges is reviewed and some findings are explained in detail: specifically, the calibrators made for this purpose are illustrated and the regression processes of the calibration on long-term displacement using water level sensor, longitudinal displacement using LVDT sensor, instantaneous displacement using LVDT sensors and accelerometer are described in full length. Based on the regression results, it was found that the gauge factors need to be readjusted according to the regression equation but, since the deviation or shift is not serious so far, long-term observation on each sensor is also recommended. Future work will be concentrated on the long-term analysis of each sensor and on the database creation so that the assessment of the structures is possible.


  1. 이준석 외, '수동계측, 계측센서 및 설비점검 보고서', 한국철도기술연구원, 2002
  2. Thompson, P.D., 'PONTIS : The Maturing of Bridge Management Systems in the USA', Bridge Management 2, Thomas Telford, 1993
  3. 이준석, '고속철도 선로구축물 성능확보를 위한 구조물 계측 및 평가시스템 개발(Ⅱ)', 한국철도기술연구원, 1999
  4. '교량관리체계개선, 교량유지관리지침(안)', 건설교통부, 1995
  5. '경부고속철도 시험선 구간외 선로구축물 자동화 계측방안에 관한 연구 보고서', 한국철도기술연구원, 1998
  6. '경부고속철도 제5-1공구 노반신설 및 기타공사 최종설계도면', 한국고속철도건설공단, 1998
  7. '교량유지관리 시스템의 개발 및 운용(I), 한국도로공사, 1997
  8. 이준석 외, '고속철도 선로구축물 성능확보를 위한 구조물 계측 및 평가시스템 개발(Ⅲ)', 한국철도기술연구원, 2000
  9. 'Detail of P.C Box Bridge Design Including Shop Drawings Longitudinal Flexure Analysis - N0. 44c Synthesis', SYSTRA, 1997
  10. 선로건설기준 및 건설규칙(안), 한국고속철도건설공단, 1998
  11. Yokoyama 외, 'Development of a Bridge Management System in Japan', Bridge Management 3, E & F SPON, 1996