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논문 기본 정보
- 자료유형
- 학술저널
- 저자정보
- 저널정보
- 국제구조공학회 Structural Engineering and Mechanics, An Int'l Journal Structural Engineering and Mechanics, An Int'l Journal Vol.59 No.2
- 발행연도
- 2016.1
- 수록면
- 277 - 290 (14page)
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This paper investigates the ground vibration induced by high-speed trains moving on multi-span continuous bridges. The dynamic impact factor of multi-span continuous bridges under trainloads was first determined in the parametric study, which shows that the dynamic impact factor will be large when the first bridge vertical natural frequency is equal to the trainload dominant frequencies, nV/D, where n is a positive integer, V is the train speed, and D is the train carriage interval. In addition, more continuous spans will produce smaller dynamic impact factors at this resonance condition. Based on the results of three-dimensional finite element analyses using the soil-structure interaction for realistic high-speed railway bridges, we suggest that the bridge span be set at 1.4 to 1.5 times the carriage interval for simply supported bridges. If not, the use of four or more-than-four-span continuous bridges is suggested to reduce the train-induced vibration. This study also indicates that the vibration in the train is major generated from the rail irregularities and that from the bridge deformation is not dominant.
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참고문헌 (22)
참고문헌 신청
Christoph Adam / 2014 / Dynamic effect of high-speed trains on simple bridge structures / Structural Engineering and Mechanics, An Int＇l Journal 51(4):581~599
Mehran Aflatooni / 2015 / A new look at the restrictions on the speed and magnitude of train loads for bridge management / Structural Engineering and Mechanics, An Int＇l Journal 53(1):89~104
Arvidsson, T. / 2014 / Statistical screening of modelling alternatives in train-bridge interaction systems / Eng. Struct 59:693~701
Fiebig, W. / 2010 / Reduction of vibrations of pedestrian bridges using tuned mass dampers (TMD) / Arch. Acoust 35:165~174
Gordon, C.G. / 1997 / Generic vibration criteria for vibration-sensitive equipment / optics and metrology 1619:71~75
Mehran Aflatooni / 2015 / A new look at the restrictions on the speed and magnitude of train loads for bridge management / Structural Engineering and Mechanics, An Int＇l Journal 53(1):89~104
Arvidsson, T. / 2014 / Statistical screening of modelling alternatives in train-bridge interaction systems / Eng. Struct 59:693~701
Fiebig, W. / 2010 / Reduction of vibrations of pedestrian bridges using tuned mass dampers (TMD) / Arch. Acoust 35:165~174
Gordon, C.G. / 1997 / Generic vibration criteria for vibration-sensitive equipment / optics and metrology 1619:71~75
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