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논문 기본 정보

자료유형
학술대회자료
저자정보
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한국철도학회 한국철도학회 학술발표대회논문집 한국철도학회 2006년도 춘계학술대회논문집
발행연도
2006.5
수록면
8 - 23 (16page)

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초록· 키워드

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Concrete filled tube(CFT) which has various merits of good loading capacity, excellent deformable performance, reduced noise and vibration generation has conveniencies and economical aspects in design and construction for bridges. A real scale test on the model bridge with CFT girder was performed to evaluate applicability to railway bridges through checking on vibration efficiency. Major factors which give rise to vibration of railway bridge are crossing trains, working machines, earthquake, and wind. Check on the bridge vibration induced by crossing trains is very important to ensure riding performance of them. Dynamic capacity as well as bearing capacity and workability of CFT girder is necessary to guarantee applicability to railway bridge. In this study, a real scale bridge model was made in structural laboratory and various tests on dynamic characteristics(dynamic elastic modulus, damping ratio, natural frequencies, and mode shapes) was performed. In addition to this, simulation tests on crossing trains using dynamic actuators were performed and various responses(vertical displacements, accelerations, end-rotations of the model) were measured. From the result of this study, it is verified that the bridge with CFT girders may have sufficient dynamic performance for railway bridge.

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ABSTRACT
1. 서론
2. CFT거더 교량의 진동 실험
3. CFT거더 교량의 이동하중 해석
4. 결론
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