Train-Structure Dynamic Interaction Analysis of The Bridge Transition Considering Track Irregularity

궤도틀림을 고려한 교대접속부의 열차상호동적거동해석

  • Choi, Chan-Yong (High-Speed Railway Research Division, Korea Railroad Research Institute) ;
  • Kim, Hun-Ki (High-Speed Railway Research Division, Korea Railroad Research Institute) ;
  • Chung, Keun-Young (KY Technology) ;
  • Yang, Sang-Beom (Dept of Civil, Architecture and Environmental Systems Engineering, Sungyunkwan Univ.)
  • 최찬용 (한국철도기술연구원, 고속철도연구본부) ;
  • 김현기 (한국철도기술연구원, 고속철도연구본부) ;
  • 정근영 ;
  • 양상범 (성균관대학교 건설환경시스템공학과)
  • Received : 2015.05.29
  • Accepted : 2015.09.16
  • Published : 2015.09.30


In this study, track dynamic interaction characteristics caused by the vehicle running through transitional section such as bridge abutments were studied using the finite element analysis program. The geometric condition of track was generated by trigonometric function and allowable maximum track irregularity is determined by KORAIL track maintenance criteria. The sub-infrastructure under rail fastener system was modelled by 3D solid elements. To reduce computational cost only half track line is numerically considered and the roller boundary condition was applied to each side of model. In this study, the vehicle-track dynamic interaction analysis was carried out for standard Korean transition section of concrete track and the dynamic behaviors were investigated. The dynamic characteristics considered are wheel load variation, vertical acceleration at body, and maximum Mises stress at each part of transitional section.


Grant : 콘크리트궤도 철도교량의 신뢰도기반 설계법 개발 및 철도 토공노반설계 선형 기준개선

Supported by : 국토교통부


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