Analysis of Dynamic Behavior of Railway Bridge with Concrete Track

콘크리트궤도 부설 철도교량의 동적거동 분석

  • 민낙기 (서울과학기술대학교 철도전문대학원) ;
  • 성덕룡 (대원대학교 철도건설과) ;
  • 박용걸 (서울과학기술대학교 철도전문대학원)
  • Received : 2012.01.06
  • Accepted : 2012.02.27
  • Published : 2012.04.30


Precise estimation f a structure's dynamic characteristics is indispensable for ensuring stable dynamic response during life time especially for the structures which can experience resonance such as railway bridges. Especially, concrete track can change the modal properties of the railway bridge, through the contribution of stiffness as well as mass effects, generally only the mass effect is considered in dynamic analysis of the railway bridge. In this paper, static and dynamic behaviors of railway bridge with concrete track were investigated through experimental study. Also, numerical analysis was performed about considering only mass of concrete track and together with stiffness and mass of concrete track. These were compared with experiment value. Numerical analysis value considering together with stiffness and mass of concrete track was similar experiment value. Therefore, when dynamic analysis of railway bridge with concrete track is performed, the contribution of stiffness as well as mass effects for concrete track is considered.


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