국립중앙도서관 "우편 복사 서비스"로 연결 됩니다.
DBpiaRailway bridges are highly susceptible to resonance due to the equidistant axle load with constant speed of train. Thus it is inevitable verify dynamic characteristics and quantities against dynamic guidelines. Recently various new-type bridges are de...
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RISS 인기검색어
https://www.riss.kr/link?id=A82733094
- 저자
- 발행기관
- 학술지명
- 권호사항
-
발행연도
2011
-
작성언어
Korean
-
KDC
326
-
자료형태
학술저널
- 발행기관 URL
-
수록면
3147-3155(9쪽)
- 제공처
-
0
상세조회 -
0
다운로드
부가정보
다국어 초록 (Multilingual Abstract)
Railway bridges are highly susceptible to resonance due to the equidistant axle load with constant speed of train. Thus it is inevitable verify dynamic characteristics and quantities against dynamic guidelines. Recently various new-type bridges are developed and applies to medium span length between 30m and 40m. However just steel box girder bridge is under review for span length between 45m and 50m without development any new technologies. This study investigate the dynamic properties and safety of steel box railway bridge having span length 45m in alternative girder hight and kind of ballast. Numerical analysis is performed time series analysis by mode superposition using calculated natural vibration frequency and mode after carry out a free vibration analysis and extract modal parameter to higher modes. The results are then compared to various dynamic stability standards toward target bridge's dynamic stability analysis. The result of this study is expected as a reference for design railway bridges.
Railway bridges are highly susceptible to resonance due to the equidistant axle load with constant speed of train. Thus it is inevitable verify dynamic characteristics and quantities against dynamic guidelines. Recently various new-type bridges are developed and applies to medium span length between 30m and 40m. However just steel box girder bridge is under review for span length between 45m and 50m without development any new technologies. This study investigate the dynamic properties and safety of steel box railway bridge having span length 45m in alternative girder hight and kind of ballast. Numerical analysis is performed time series analysis by mode superposition using calculated natural vibration frequency and mode after carry out a free vibration analysis and extract modal parameter to higher modes. The results are then compared to various dynamic stability standards toward target bridge's dynamic stability analysis. The result of this study is expected as a reference for design railway bridges.
목차 (Table of Contents)
- ABSTRACT
- 1. 서론
- 2. 열차 운행을 위한 한계 조건
- 3. 유한요소 모델링
- 4. 모드 해석 및 임계속도 분석
- ABSTRACT
- 1. 서론
- 2. 열차 운행을 위한 한계 조건
- 3. 유한요소 모델링
- 4. 모드 해석 및 임계속도 분석
- 5. 이동하중 해석 결과참고문헌3154
- 6. 결론
- 참고문헌
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