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학술연구/단체지원/교육 등 연구자 활동을 지속하도록 DBpia가 지원하고 있어요.
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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.25 No.1
- 발행연도
- 2020.1
- 수록면
- 81 - 96 (16page)
이용수
초록· 키워드
오류제보하기
Wind measurements were made on the Canton Tower at a height of 461 m above ground during the Typhoon <i>Vincente</i>, the wind-induced accelerations and displacements of the tower were recorded as well. Comparisons of measured wind parameters at upper level of atmospheric boundary layer with those adopted in wind tunnel testing were presented. The measured turbulence intensity can be smaller than the design value, indicating that the wind tunnel testing may underestimate the crosswind structural responses for certain lock-in velocity range of vortex shedding. Analyses of peak factors and power spectral density for acceleration response shows that the crosswind responses are a combination of gust-induced buffeting and vortex-induced vibrations in the certain range of wind directions. The identified modal frequencies and mode shapes from acceleration data are found to be in good agreement with existing experimental results and the prediction from the finite element model. The damping ratios increase with amplitude of vibration or equivalently wind velocity which may be attributed to aerodynamic damping. In addition, the natural frequencies determined from the measured displacement are very close to those determined from the acceleration data for the first two modes. Finally, the relation between displacement responses and wind speed/direction was investigated.
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등록된 정보가 없습니다.
참고문헌 (49)
참고문헌 신청
AIJ 1996 / 1996 / AIJ Recommendations for Loads on Buildings / Architectural Institute of Japan
2006 / ASCE7-05, Minimum Design Loads for Buildings and Other Structures-ASCE / American Society of Civil Engineers (ASCE)
Siu-Kui Au / 2012 / Field observations on modal properties of two tall buildings under strong wind / Journal of Wind Engineering and Industrial Aerodynamics 101:12~23
G. Ballio / 1992 / A 60 year old, 100 m high steel tower: limit states under wind actions / Journal of Wind Engineering and Industrial Aerodynamics 43(1-3):2089~2100
D Banks / 2001 / The applicability of quasi-steady theory to pressure statistics beneath roof-top vortices / Journal of Wind Engineering and Industrial Aerodynamics 89(6):569~598
2006 / ASCE7-05, Minimum Design Loads for Buildings and Other Structures-ASCE / American Society of Civil Engineers (ASCE)
Siu-Kui Au / 2012 / Field observations on modal properties of two tall buildings under strong wind / Journal of Wind Engineering and Industrial Aerodynamics 101:12~23
G. Ballio / 1992 / A 60 year old, 100 m high steel tower: limit states under wind actions / Journal of Wind Engineering and Industrial Aerodynamics 43(1-3):2089~2100
D Banks / 2001 / The applicability of quasi-steady theory to pressure statistics beneath roof-top vortices / Journal of Wind Engineering and Industrial Aerodynamics 89(6):569~598
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