Buckling Parameters of CWR Track: Fastner, Uplift of Tie

장대레일 좌굴 변수 : 채결재, 칠목들림

  • 한상윤 (고려대학교 토목환경공학과) ;
  • 임남형 (한국철도기술연구원) ;
  • 한택희 (고려대학교 토목환경공학과) ;
  • 강영종 (고려대학교 토목환경공학과)
  • Published : 2004.10.01

Abstract

CWR(Continuous Welded Rail) has many advantage over the conventional jointed rail track. The use of CWR track not only reduces the track maintenance cost, but increase the life cycle of track components. As the use of CWR increases in track structures, derailing disasters associating with track buckling also increase in great numbers due to high compressive thermal stress. Despite the importance, the number of studies relevant to the instability is quite limited. In this paper, It considers the contribution of rail-pad-fastener resistance, uplift of tie and nonlinear analysis. Influence of various track components on CWR track temperature and mode shape were characterized.

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