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Control of 3-D coupled responses of wind-excited tall buildings by a spatially placed TLCD system

  • Liang, Shuguo (Department of Civil Engineering, Wuhan University of Hydraulic and Electrical Engineering) ;
  • Li, Qiusheng (Department of Building and Construction, City University of Hong Kong) ;
  • Qu, Weilian (Department of Civil Engineering, Wuhan University of Technology)
  • 발행 : 2000.09.25

초록

The possible application of a spatially placed passive tuned liquid column damper system for suppressing coupled lateral-torsional responses of tall buildings is investigated in this paper. The wind loads acting on rectangular tall buildings are analytically expressed as 3-D stochastic model. Meanwhile, the 3-D responses of tall buildings may be coupled due to eccentricities between the stiffness and mass centers of the buildings. In these cases, torsional responses of the buildings are rather larger, and a TLCD system composed of several TLCD located near the sides of the buildings is more effective than the same TLCD placed at the building center in reducing both translational and torsional responses of the buildings. In this paper, extensive analytical and numerical work has been done to present the calculation method and optimize the parameters of such TLCD systems. The numerical examples show that the spatially placed TLCD system can reduce coupled along-wind, across-wind and torsional responses significantly with a fairly small mass ratio.

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참고문헌

  1. Davenport, A.G. (1964), "The distribution of largest value of a random funciton with application to gust loading", Proceeding Inst. Civ. Eng., 187-196.
  2. Liang, S.G. (1997), "Analysis of wind-induced responses for mechanically coupled tall buildings(in Chinese)", J. Wuhan Univ. Hydr. & Elec., 31(3), 28-34.
  3. Qu, W.L. (1991), " The design of TLCD. In : Control design for suppressing wind-induced vibration of tall buildings and highrise structures (in Chinese)", Publishing House of Wuhan University of Survey and Drawing, 196-222, Wuhan.
  4. Sakai. F., Takaeda, S. and Tamaik, T. (1989), "Tuned liquid column dampers-new type device for suppressing of building vibrations", Proc. Inter. Conf. on Highrise Buildings, Nanjing, 926-931.
  5. Safak, E. and Foutch, D.A. (1987), "Coupled vibrations of rectangular buildings subjected to normally-incident random wind loads", J. Wind Eng. Ind. Aerodyn., 26, 129-148. https://doi.org/10.1016/0167-6105(87)90040-7
  6. Solari, G. (1985), "Mathematical model to predict 3-D wind loading on buildings", J. Eng. Mech. ASCE, 111(2), 254-276. https://doi.org/10.1061/(ASCE)0733-9399(1985)111:2(254)
  7. Simiu, E. and Scanlan, R.H. (1985), Wind Effects on Structures -- an Introduction to Wind Engineering, Wiley, New York.
  8. Xu, Y.L., Kwok, K.C.S. and Samali, B. (1992), "The effect of tuned mass dampers and liquid dampers on crosswind response of tall/slender structures", J. Wind Eng. Ind. Aerodyn., 40, 30-54.

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