Effects of Bridge Bearings by Structure-Track Interaction for Continuous Bridge applied CWR with Rail Expansion Joint under Temperature Load

레일신축이음 설치된 장대레일 적용 연속교의 구조물-궤도 상호작용에 의한 온도하중이 교량 받침에 미치는 영향

  • Chung, Jee-Seung (Department of railroad civil engineering, Dongyang University) ;
  • Lee, Jong-Soon (R&D Group, Bridges & Rails Engineering Consultants)
  • 정지승 (동양대학교 철도토목학과) ;
  • 이종순 ((주)교량과고속철도 부설연구소)
  • Received : 2010.09.15
  • Accepted : 2010.10.18
  • Published : 2010.10.31


The additional axial force of CWR(continuous welded rail) is occurred by structure-track interaction, in reverse, fixed supports of structure are applied the large load by that. Ratio of load which transferred on support through the bridge superstructure with one-side REJ by acceleration and braking load are stated in High-Speed Rail Design Criteria(2005). On the other hand the horizontal forces of support delivered to the load due to thermal loads has been no report about the criteria. Therefore, this study was performed the review of the reaction and displacement on support by structure-track interaction in a special bridge(composite brdiges, 45+55+55+45=200m) with REJ acting on the temperature load. As a result, because fixed support of a special bridge or a continuous bridge with REJ under the temperature load which is constant load has been acted the large lateral load by structure-track interaction, when determining the fixed bearing capacity of structure should be reflected in the results to secure the safety of structures was confirmed.


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