Wind and Structures

  • 제7권3호
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  • Pages.203-214
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  • 2004
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  • 1226-6116(pISSN)
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  • 1598-6225(eISSN)
테크노프레스 (Techno-Press)
권호 표지
DOI QR코드

DOI QR Code

Development of wind tunnel test model of mid-rise base-isolated building

  • Ohkuma, Takeshi (Department of Architecture and Building Engineering, Kanagawa University) ;
  • Yasui, Hachinori (Urban Environment Research Center, Izumi Sohken Engineering Co., Ltd.) ;
  • Marukawa, Hisao (Urban Environment Research Center, Izumi Sohken Engineering Co., Ltd.)
  • 투고 : 2003.10.15
  • 심사 : 2004.03.23
  • 발행 : 2004.06.25
⟨ 이전 논문 다음 논문 ⟩

초록

This paper describes a method for developing a multi-degree-of freedom aero-elasto-plastic model of a base-isolated mid-rise building. The horizontal stiffness of isolators is modeled by several tension springs and the vertical support is performed by air pressure from a compressor. A lead damper and a steel damper are modeled by a U-shaped lead line and an aluminum line. With this model, the frequency ratio of torsional vibration to sway vibration, and plastic displacements of isolation materials can be changed easily when needed. The results of isolation material tests and free vibration tests show that this model provides the object performance. The peak displacement factors are about 4.5 regardless of wind speed in wind tunnel tests, but their gust response factor decreases with increment of wind speed.

키워드

참고문헌

  1. Henderson, P. and Novak, M. (1990), "Wind effects on base isolated buildings", J. Wind Eng. Ind. Aerodyn., 36, 559-569. https://doi.org/10.1016/0167-6105(90)90338-D
  2. Katagiri, J., Ohkuma, T. and Marukawa, H. (2001), "Motion-induced wind forces acting on rectangular high-rise buildings with side ratio of 2", J. Wind Eng. Ind. Aerodyn., 89, 1421-1432. https://doi.org/10.1016/S0167-6105(01)00148-9
  3. Kawaguchi, A., Maruta, E. and Kanda, M. (1999), "Hybrid vibration system for evaluation of wind forces on structures", Proc. 10th Int. Conf. on Wind Engineering, Copenhagen, pp. 445-460.
  4. Marukawa, H., Katagiri, J., Katsumura, A. and Fujii, K. (1996), "Development of multi-degree-of-freedom aeroelastic model and evaluation of wind response of a high-rise building", J. Structural and Construction Engineering (Transactions of AIJ), 484, 39-48, in Japanese.
  5. Tamura, T., Okada, R. and Wada, A. (2001), "Wind tunnel test of across wind oscillations for high-rise building model with hysteretic damper", J. Structural and Construction Engineering (Transactions of AIJ), 547, 51-58, in Japanese.
  6. Yasui, H., Ohkuma, T., Koga, S. and Shimomura, S. (2002), "Full-scale measurement of wind-induced response of a base-isolated mid-rise building", Proc. 17th National Symposium on Wind Engineering, Tokyo, pp. 445-450, in Japanese.