Browse > Article
http://dx.doi.org/10.11112/jksmi.2011.15.2.070

Application for a BWIM Algorithm Using Density Estimation Function and Average Modification Factor in The Field Test  

Han, Ah Reum Sam (인하대학교 토목공학과)
Shin, Soobong (인하대학교 토목공학과)
Publication Information
Journal of the Korea institute for structural maintenance and inspection / v.15, no.2, 2011 , pp. 70-78 More about this Journal
Abstract
The paper aims at developing a more reliable and accurate BWIM(Bridge Weigh-In-Motion) algorithm using measured strain data and examining its efficiency with various tests on bridges. It proposes a BWIM algorithm using density estimation function and average modification factor for moment-strain relationship. Density estimation function has been proved to be reliably applied when multiple axle loads are estimated. An average modification factor is applied to minimize overall error that can be encountered between theoretically computed moments and measured strains at multiple locations in a bridge. The developed algorithm has been successfully examined through numerical simulations, laboratory tests, and also by field tests on a multi-girder composite bridge.
Keywords
BWIM; Multi-girder bridge; Density estimation function; Average modification factor;
Citations & Related Records
Times Cited By KSCI : 1  (Citation Analysis)
연도 인용수 순위
1 김성곤, 박민석, 이정휘, 조병완, "BWIM시스템을 이용한 사장교의 차량하중분석", 한국지진공학회논문집, 제10권 6호, 2006, pp.1-8.
2 박민석, 조병완, "주행중인 차량하중 측정을 위한 BWIM시스템 개발", 한국구조물진단학회지, 제10권 2호, 2004, pp.111-122.
3 박민석, 배두병, 황의승, "고속도로 교량 활하중정형화를 위한 BWIM SYSTEM 개발", 한국도로공사 제19회 도로기술연구성과발표회논문집(구조분야), 제22권 1호, 2002, pp.27-46.
4 정지원, 신수봉, "다축모멘트 영향선과 밀도추정함수를 사용한 이동하중 식별 알고리즘의 개발", 한국구조물진단학회지, 제10권 6호, 2006, pp.87-94.
5 조재용, 신수봉, 최광규, 권순정, "동적 거동계측을 통한 이동 하중 추정", 한국구조물진단학회지, 제11권 4호, 2007, pp.129-137.
6 Brozovic, R., Znidaric, A., Vodopivec, V., "Slovenian experience of using WIM data for road planning and maintenance", Proceedings of the Fourth International Conference on Weigh-In-Motion, ICWIM4, 2005, pp.363-370.
7 Chan, T.H.T., Law S.S., Yung, T.H., and Yuan, X.R., "An interpretive method for moving force identification, Journal of Sound and Vibration", Vol. 219, No. 3, 1999, pp.503-529.   DOI   ScienceOn
8 IABMAS, Bridge Maintenance, Safety, Management and Life-Cycle Optimization, 2010.