Vibration Analysis Method for Railway Structure with Floating Slab

방진궤도가 부설된 역사의 진동해석 기법

  • 양신추 (한국철도기술연구원 궤도토목연구본부) ;
  • 김태욱 (한국철도기술연구원 궤도노반연구) ;
  • 강윤석 (한국철도기술연구원 궤도노반연구팀)
  • Published : 2003.05.01


In this paper, a numerical method for evaluating the efficiency of vibration reduction of substructure under floating slab track is developed for optimal design of floating slab track. The equation of motion for train and track interaction system is derived by applying compatibility condition at the contact points between wheels and rails. The train is modelled by 3-masses system and the track by continuous support beam system. Numerical analyses are carried out to investigate the effects of train speed, stiffness and damping of slab-pad, and track irregularity upon vibration reduction in substructure under the track.