Parametric Study on the Safety of CWR Track over High-Speed Railway Bridges

매개변수해석을 통한 고속전철교량상 장대레일궤도 안전성 검토

  • 강재윤 (한국건설기술연구원 토목연구부) ;
  • 김병석 (한국건설기술연구원 토목연구) ;
  • 김영진 (한국건설기술연구원 토목연구) ;
  • 박성용 (한국건설기술연구원 토목연구) ;
  • 조정래 (한국건설기술연구원 토목연구) ;
  • 최은석 (한국건설기술연구원 토목연구) ;
  • 진원종 (한국건설기술연구원 토목연구부)
  • Published : 2002.03.01

Abstract

Where the track is continuously welded over the bridge, the longitudinal forces will be distributed interactively between the track and the sub-structure by the rail-bridge interaction mechanism. The ratio between the longitudinal forces transmitted in each elements depends on the magnitude of the ballast resistance and the stiffness of the sub-structures. In this paper, the main factors affect on the longitudinal rail force are discussed and the parametric study for the behavior of CWR(Continuous Welded Rail) track was executed. It is concluded that the horizontal ballast resistance and the stiffness of the bridge sub-structure are the significant parameters affecting the stability of the continuous welded rail track.

References

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