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Estimation of Moving Loads by Measuring Dynamic Response  

Cho, Jae Yong (인하대학교 토목공학과)
Shin, Soobong (인하대학교 토목공학과)
Choi, Kwang-Kyu (동아대학교 토목공학과)
Kwon, Soon-Jung (코레일 철도연구개발센터 기술연구팀)
Publication Information
Journal of the Korea institute for structural maintenance and inspection / v.11, no.4, 2007 , pp. 129-137 More about this Journal
Abstract
An algorithm is proposed for estimating axle loads of trucks moving over a bridge by measuring dynamic responses. The bridge was modeled by a beam structure in the current applications of the proposed algorithm. Among the state vectors, measured acceleration was used and displacement was computed from measured strain at the same location. Nodal force vectors were computed by using a ready-made database of equivalent nodal force transformation matrix. The algorithm was examined through simulation studies and laboratory experiments. The effects of measurement noise and velocity error were investigated through simulation studies.
Keywords
Moving load; Dynamic response; Measurement noise; Velocity error;
Citations & Related Records
Times Cited By KSCI : 1  (Citation Analysis)
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1 황의성, 배두병, 정경섭, 조재병, "BWIM시스템을 이용한 중차량의 통행특성 분석," 한국강구조학회논문집, 11권 2호, 1999, 4. pp. 223-232.
2 Jiang, R.J, Au, F.T.K., Cheung, Y.K, "Identification of masses moving on multi-span beams based on a genetic algorithm," Computers and Structures, 81, 2003. pp. 2137-2148.   DOI   ScienceOn
3 Jiang, R.J., Au. F.T.K., Cheung, Y.K., "Identification of vehiclesmoving on continuous bridges with rough surface," Journal of Sound and Vibration, Vol. 274, 2004. pp.1045-1063.   DOI   ScienceOn
4 Ojio, T., Yamada, K., "Bridge WIM by Reaction Force Method", Proceedings of the Fourth Iternational Conference On Weigh-In-Motion. ICWIM4, 2005. pp. 107-118.
5 Ichikawa, M, Miyakawa, Y. & Matsuda, A, "Vibration analysis of the continuous beam subjected to a moving mass," Journal of Sound and Vibration, Vol. 230(3), 2000. pp. 493-506.   DOI   ScienceOn
6 권순정, 임동환, 신수봉, "Modal SI 기법을 위한 최적 측정위치 결정," 대한토목학회논문집, 24권 1A호, 2004. 1. pp. 177-183.
7 Zhu, X.Q. & Law, S.S,, "Identification of moving interaction forces with incomplete velocity information," Mechanical Systems and Signal Processing, Vol. 17(6), 2003. pp. 1349-1366.   DOI   ScienceOn
8 Berzeri, M. & Shabana, A.A, "Development of simple models for the elastic forces in the absolute nodal co-ordinate formulation," Journal of Sound and Vibration, Vol. 235(4), 2000. pp. 539-565.   DOI   ScienceOn
9 류지영, 조재용, 신수봉, "영향면을 사용한 이동하중식별," 한국전산구조공학회 2001년도 가을 학술발표회 논문집, 2001. 10. pp. 261-268.
10 홍진석, 조재용, 신수봉, "구조물에 작용하는 정적하중의 식별," 대한토목학회 2001년도 학술발표회, 논문집 CD, 2001. 11.
11 정지원, 신수봉, "다축모멘트 영향선과 밀도추정함수를 사용한 이동하중식별 알고리듬의 개발," 한국구조물진단학회 논문집, Vol. 10(5), 2006.
12 Zhu, X.Q, Law, S.S, "Dynamic axle and wheel loads identification : laboratory studies," Journal of Sound and Vibration, Vol. 268, 2003. pp. 855-879.   DOI   ScienceOn
13 Savin,E, "Dynamic amplification factor and response spectrum for the evaluation of vibrations of beams under successive moving loads," Journal of Sound and Vibration, Vol. 248(2), 2001. pp. 267-288.   DOI   ScienceOn