대한건축학회논문집 (Journal of the Architectural Institute of Korea)

  • 제36권7호
  • /
  • Pages.147-154
  • /
  • 2020
  • /
  • 2733-6239(pISSN)
  • /
  • 2733-6247(eISSN)
대한건축학회 (Architectural Institute of Korea)
권호 표지
DOI QR코드

DOI QR Code

와류하중 구성성분에 따른 풍직각방향 진동 기여 특성 분석

An Analysis of the Contribution Pattern of Vortex-Induced Load Components to Across-Wind Response

  • 투고 : 2020.05.19
  • 심사 : 2020.07.07
  • 발행 : 2020.07.30
⟨ 이전 논문 다음 논문 ⟩

초록

As the vortices around the structure are transferred to the dynamic wind load, across-wind vibration is induced, and the magnitude of the vibration is larger than the along-wind vibration when the height of the structure is increased. In this study, in order to quantitatively evaluate across-wind response, the vortex-induced load components are classified according to their own original source, and the effect of each component on the vibration is analyzed. The load is identified from the response of the structure by inverse problem, and these load components are obtained by Kalman filtering based on the state equation realized from the distribution characteristics of loads spectrum in the frequency domain. The proposed load decomposition process for vortex-induced load components is verified by performing an aero-elastic model test for the circular cylinder model in the atmospheric boundary layer wind tunnel, and the pattern in which each load component contributes to the across-wind response is analyzed, and finally the original source of the loads as well as the unique behavior of across-wind response can be precisely understood.

키워드

과제정보

이 연구는 국토교통부 국토교통기술촉진연구사업의 연구비 지원에 의한 결과의 일부임. 과제번호: 19CTAP-C151882-01

참고문헌

  1. Kareem, A. (1982). Acrosswind response of building, Journal of Structural Engineering, 108(4), 869-887.
  2. American Society of Civil Engineers (ASCE) (2000). ASCE 7-98 minimum design loads for buildings and other structures, Reston, Va.
  3. Architectural Institute of Japan (AIJ) (1996). Recommendation for loads-on buildings, Tokyo.
  4. Hartlen, R.T., & Currie, I.G. (1970). A Lift-oscillator Model of Vortex-induced Vibration, Journal of Engineering Mechanics, ASCE, 96, 577-591.
  5. Landl, R. (1975). A mathematical Model for Vortex-excited Vibrations of Bluff Bodies, Journal of Sound and Vibration, 42, 219-234. https://doi.org/10.1016/0022-460X(75)90217-5
  6. Nakamura, Y. (1993). Bluff Body Aerodynamics and Turbulence, Journal of Wind Engineering and Industrial Aerodynamics, 49, 65-78. https://doi.org/10.1016/0167-6105(93)90006-A
  7. Vickery, B.J., & Basu, R.I. (1983). Across-wind vibrations of structures with circular cross-section, Part I : Development of a mathematical model for full-scale application, Journal of Wind Engineering and Industrial Aerodynamics, 12, 75-97. https://doi.org/10.1016/0167-6105(83)90081-8
  8. Marukawa, H., Kato, N., Gujii, K., & Tamura, Y. (1996). Experimental evaluation of aerodynamic damping of tall buildings, Journal wind engineering and industrial aerodynamics, 59(2-3), 177-190. https://doi.org/10.1016/0167-6105(96)00006-2
  9. Watanabe, Y., Isyumov, N., & Davenport, A. G. (1997). Empirical aerodynamic damping function for tall buildings, Journal wind engineering and industrial aerodynamics, 72(1-3), 313-321. https://doi.org/10.1016/S0167-6105(97)00260-2
  10. Muralidharan, K., Muddada, S., & Patnaik, B.S.V. (2013). Numerical simulation of vortex induced vibrations and its control by suction and blowing, Applied Mathematical Modelling, 37, 284-307. https://doi.org/10.1016/j.apm.2012.02.028
  11. Liu, H. (1991). Wind Engineering : A Handbook for Structural Engineers, Prentice Hall, 136-138.
  12. Sanchez, J., & Benaroya, H. (2014). Review of force reconstruction techniques, Journal of Sound and Vibration, 333, 2999-3018. https://doi.org/10.1016/j.jsv.2014.02.025
  13. Gillijns, S., & De Moor, B. (2007). Unbiased minimum-variance input and state estimation for linear discrete-time systems, Automatic, 43, 111-116. https://doi.org/10.1016/j.automatica.2006.08.002
  14. Hwang, J. S., Kareem, A., & Kim, W. (2007). Estimation of modal loads using structural response, Journal of Sound and Vibration, 326(3-5), 522-539. https://doi.org/10.1016/j.jsv.2009.05.003
  15. Furuta, K., Sano, A., & Atherton, D. (1988). State Variable Methods in Automatic Control, New York, John Wiley & Sons.
  16. Hwang, J. S., Lee, S. H., Woo, S. S., & Mun, D. H. (2017). Estimation of vortex induced wind load on circular cylinder structure by force identification framework, Journal of the Wind Engineering Institute of Korea, 21(4), 203-209.
  17. Hwang, J. S., Kwon, D. K., & Kareem, A. (2018). Estimation of structural modal parameters under winds using a virtual dynamic shaker, Journal of Engineering Mechanics, ASCE, 144(4), 1-14.
  18. Hayashida, H., Mataki, Y., Iwasa, Y. (1992). Aerodynamic damping effects of tall building for a vortex induced vibration, Journal wind engineering and industrial aerodynamics, 43(1-3), 1973-1983. https://doi.org/10.1016/0167-6105(92)90621-G
  19. Wang, L., Fan, X., Liang, S., Song, J., & Wang, Z. (2018). Improved expression for across-wind aerodynamic damping ratios of super high-rise building, Journal wind engineering and industrial aerodynamics, 176, 263-272. https://doi.org/10.1016/j.jweia.2018.04.001