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논문 기본 정보
- 자료유형
- 학술저널
- 저자정보
- 저널정보
- 국제구조공학회 Smart Structures and Systems, An International Journal Smart Structures and Systems, An International Journal Vol.17 No.3
- 발행연도
- 2016.1
- 수록면
- 491 - 522 (32page)
이용수
초록· 키워드
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A benchmark problem for modal identification of a cable-stayed bridge was proposed by a research team at Hong Kong Polytechnic University. By taking an instrumented cable-stayed bridge as a test bed, nineteen sets of vibration records with known/unknown excitations were provided to invited researchers. In this paper, the vibration responses of the bridge under a series of excitation conditions are examined to estimate the wind and traffic-induced variations of its dynamic characteristics. Firstly, two output-only experimental modal identification methods are selected. Secondly, the bridge and its monitoring system are described and the nineteen sets of vibration records are analyzed in time-domain and frequency-domain. Excitations sources of blind datasets are predicted based on the analysis of excitation conditions of known datasets. Thirdly, modal parameters are extracted by using the two selected output-only modal identification methods. The identified modal parameters are examined with respect to at least two different conditions such as traffic- and typhoon-induced loadings. Finally, the typhoon-induced effects on dynamic characteristics of the bridge are estimated by analyzing the relationship between the wind velocity and the modal parameters.
목차
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참고문헌 (29)
참고문헌 신청
Askegaard, V. / 1988 / Long term observation of RC-bridge using changes in natural frequencies / Nordic Concrete Res 7:20~27
Bendat, J.S. / 1993 / Engineering applications of correlation and spectral analysis / Wiley-Interscience
Brincker, R. / 2001 / Modal identification of output-only systems using frequency domain decomposition / Smart Mater. Struct. 10:441~445
Brownjohn, J. M. W. / 2010 / Ambient vibration re-testing and operational modal analysis of the Humber Bridge / Eng. Struct. 32:82003~82018
Chen, J. / 2004 / Modal parameter identification of Tsing Ma suspension bridge under typhoon Victor : EMD-HT method / J. Wind Eng. Ind. Aerod. 92:805~827
Bendat, J.S. / 1993 / Engineering applications of correlation and spectral analysis / Wiley-Interscience
Brincker, R. / 2001 / Modal identification of output-only systems using frequency domain decomposition / Smart Mater. Struct. 10:441~445
Brownjohn, J. M. W. / 2010 / Ambient vibration re-testing and operational modal analysis of the Humber Bridge / Eng. Struct. 32:82003~82018
Chen, J. / 2004 / Modal parameter identification of Tsing Ma suspension bridge under typhoon Victor : EMD-HT method / J. Wind Eng. Ind. Aerod. 92:805~827
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