플로팅 슬래브궤도 슬래브 연결부에서의 차량 및 궤도의 동적 거동

Dynamic Behavior of Train and Track at Slab Joints of Floating Slab Track

  • 장승엽 (한국철도기술연구원, 초고속열차연구실) ;
  • 양신추 (한국철도기술연구원, 차륜궤도연구실) ;
  • 황성호 (한국철도기술연구원, 차륜궤도연구실) ;
  • 안미경 (한국철도기술연구원, 초고속열차연구실) ;
  • 최원일 (한국철도시설공단, KR연구원 기술연구소)
  • 발행 : 2011.05.26

초록

Highlighted is significance of the floating slab track for mitigating vibrations induced by train, together with the recent trends towards speed-up of railways. In the design of the floating slab track, it is more beneficial to increase the slab length since a significant impact can be induced on the train and track at the discontinuous points between slabs with the finite slab length. However, if the slab length is too long, the tensile stress of slab concrete and the additional stress on rail due to the temperature change and shrinkage of concrete slab. Thus it is of great importance to relevantly determine the slab length. In this study, to understand these phenomena and establish the countermeasures, the dynamic behaviors of train and track at the inter-slab discontinuous points have been explored and the effect of dowel joints as one of countermeasures has been analytically investigated.

키워드

과제정보

연구 과제 주관 기관 : 국토해양부