Journal of the Korea Academia-Industrial cooperation Society (한국산학기술학회논문지)

The Korea Academia-Industrial cooperation Society (한국산학기술학회)
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Analysis of Vibration Transfer Characteristics of Approach Bridges for an Elevated Railroad Station

철도선하역사 접속교량의 진동전달 특성 분석

  • Choi, Sanghyun (Dept. of Railroad Facility Eng., Korea University of Transportation) ;
  • Kim, Jin-Ho (Smart Station Research Tram, Korea Railroad Research Institute) ;
  • Yoo, Yong (Dept. of Railroad Facility Eng., Korea University of Transportation) ;
  • Kwon, Se-Gon (Research Institute, Korail)
  • 최상현 (한국교통대 철도시설공학과) ;
  • 김진호 (한국철도기술연구원 스마트역사연구팀) ;
  • 유용 (한국교통대 철도시설공학과) ;
  • 권세곤 (한국철도공사 연구원)
  • Received : 2015.03.25
  • Accepted : 2015.04.09
  • Published : 2015.04.30
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Abstract

The elevated railway station, above which a train is passing, is vulnerable to noise and vibration compared to other station types. To better identify the vibration characteristics of the elevated railway station, the transferred vibration from approach bridges should be analyzed. In this paper, through experiments and simulations, the transfer characteristics of the vibration from approach bridges is analyzed. The study structure is Geomgok station and the anaylses are conducted using ABAQUS three dimensional numerical model. To identify the change in the transfer characteristics for various bearing types, the analyses are performed considering mechanical properties of bearing for railway bridges. The measurement is performed using the accelerometers attached to the approach bridges and the station structure along the passing path of trains.

선하역사는 구조물 상부에 열차가 운행하는 구조로서 타 역사 구조물에 비하여 역사 내의 소음 진동에 취약한 구조이다. 선하역사의 진동 특성을 보다 정확히 파악하기 위해서는 접속교량에서 전달되는 진동에 대한 분석이 필요하다. 이 논문에서는 실험 및 해석을 통하여 접속교량에서 선하역사로 전달되는 진동의 특성을 분석하였다. 대상 구조물은 경춘선 금곡역으로 ABAQUS 3차원 수치해석 모델을 이용하여 해석을 수행하였다. 받침 변화에 따른 접속교량과 역사의 전달 특성 변화를 분석하기 위하여, 철도교량에 적용되어온 다양한 받침의 역학적 성질을 고려하여 해석을 수행하였다. 현장 진동 계측은 열차진행 방향에 따라 접속 교량 및 역사 구조물에 대하여 가속도계를 이용하여 수행하였다.

Keywords

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