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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.54 No.2
- 발행연도
- 2015.1
- 수록면
- 199 - 219 (21page)
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This paper presents the non-destructive evaluation of a high-speed railway bridge usingtrain-induced strain responses. Based on the train-track-bridge interaction analysis, the strain responses of ahigh-speed railway bridge under moving trains with different operation status could be calculated. The traininduced strain responses could be divided into two parts: the force vibration stage and the free vibrationstage. The strain-displacement relationship is analysed and used for deriving critical displacements fromtheoretical stain measurements at a forced vibration stage. The derived displacements would be suitable forthe condition assessment of the bridge through design specifications defined indexes and would show certainlimits to the practical application. Thus, the damage identification of high-speed railways, such as thestiffness degradation location, needs to be done by comparing the measured strain response under movingtrains in different states because the vehicle types of high-speed railway are relatively clear and definite. Themonitored strain responses at the free vibration stage, after trains pass through the bridge, would be used foridentifying the strain modes. The relationship between and the degradation degree and the strain modeshapes shows certain rules for the widely used simply supported beam bridges. The numerical simulationproves simple and effective for the proposed method to locate and quantify the stiffness degradation.
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참고문헌 (25)
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
Arvidsson, T. / 2014 / Statistical screening of modelling alternatives in train-bridge interaction systems / Eng. Struct 59:693~701
Banjara, N.K. / 2014 / Remaining fatigue life of steel railway bridges under enhanced axle loads / Struct. Infrastruct. Eng 10(2):213~224
Brühwiler, E. / 2013 / Fatigue safety examination of a riveted railway bridge using data from long term monitoring / Proceedings of the IABSE Symposium Report, International Association for Bridge and Structural Engineering :477~484
Kim, C. W. / 2007 / Seismic response of a monorail bridge incorporating train-bridge interaction / Struct. Eng. Mech 26(2):111~126
Arvidsson, T. / 2014 / Statistical screening of modelling alternatives in train-bridge interaction systems / Eng. Struct 59:693~701
Banjara, N.K. / 2014 / Remaining fatigue life of steel railway bridges under enhanced axle loads / Struct. Infrastruct. Eng 10(2):213~224
Brühwiler, E. / 2013 / Fatigue safety examination of a riveted railway bridge using data from long term monitoring / Proceedings of the IABSE Symposium Report, International Association for Bridge and Structural Engineering :477~484
Kim, C. W. / 2007 / Seismic response of a monorail bridge incorporating train-bridge interaction / Struct. Eng. Mech 26(2):111~126
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