DOI QR코드

DOI QR Code

Across-wind dynamic loads on L-shaped tall buildings

  • Li, Yi (School of Civil Engineering, Hunan University of Science and Technology) ;
  • Li, Qiu-Sheng (Department of Architecture and Civil Engineering, City University of Hong Kong)
  • 투고 : 2016.04.03
  • 심사 : 2016.07.22
  • 발행 : 2016.11.25

초록

The across-wind dynamic loads on L-shaped tall buildings with various geometric dimensions were investigated through a series of wind tunnel testing. The lift coefficients, power spectral densities and vertical correlation coefficients of the across-wind loads were analyzed and discussed in details. Taking the side ratio and terrain category as key variables, empirical formulas for estimating the across-wind dynamic loads on L-shaped tall buildings were proposed on the basis of the wind tunnel testing results. Comparisons between the predictions by the empirical formulas and the wind tunnel test results were made to verify the accuracy and applicability of the proposed formulas. Moreover, a simplified procedure to evaluate the across-wind dynamic loads on L-shaped tall buildings was derived from the proposed formulas. This study aims to provide a simple and reliable way for the estimation of across-wind dynamic loads on L-shaped tall buildings.

키워드

과제정보

연구 과제 주관 기관 : National Nature Science Foundation of China, Council of Hong Kong Special Administrative Region, Hubei Key Laboratory of Roadway Bridge and Structure Engineering in Wuhan University of Technology

참고문헌

  1. Cheng, L., Lam, K.M. and Wong, S.Y. (2015), "POD analysis of crosswind forces on a tall building with square and H-shaped cross sections", Wind Struct., 21(1), 63-84. https://doi.org/10.12989/was.2015.21.1.063
  2. Choi, H and Kanda, J. (1993), "Proposed formula for the power spectral densities of fluctuating lift and torque on rectangular 3-D cylinders", J. Wind Eng. Ind. Aerod., 42-47, 507-516.
  3. Davenport, A.G. (1961), "The application of statistical concepts to the wind loading of structure", Proceedings of Institution of Civil Engineering., 19, 449-472. https://doi.org/10.1680/iicep.1961.11304
  4. Davenport, A.G. (1967), "Gust loading factors", J. Struct. Div. - ASCE, 93(3), 11-34.
  5. GB50009-2012. (2012), Load Code for the Design of Building Structures. China Architecture & Building Press, Beijing.
  6. Gu, M. and Quan, Y. (2004), "Across-wind loads of typical tall buildings", J. Wind Eng. Ind. Aerod., 92, 1147-1165. https://doi.org/10.1016/j.jweia.2004.06.004
  7. Gu, M., Cao, H.L. and Quan, Y. (2014), "Experimental study of across-wind aerodynamic damping of super high-rise buildings with aerodynamically modified square cross-sections", Struct. Des. Tall Spec. Build., 23, 1225-1245. https://doi.org/10.1002/tal.1137
  8. Ha, Y.C. (2013), "Empirical formulations for evaluation of across-wind dynamic loads on rectangular tall buildings", Wind Struct., 16(6), 603-616. https://doi.org/10.12989/was.2013.16.6.603
  9. Isyumov, N., Ho, E. and Case, P. (2014), "Influence of wind directionality on wind loads and responses", J. Wind Eng. Ind. Aerod., 133, 169-180. https://doi.org/10.1016/j.jweia.2014.06.006
  10. Kareem, A. (1982), "Across wind response of buildings", J. Struct. Div. - ASCE., 108(4), 869-887.
  11. Kim, Y.C. and Kanda, J. (2013), "Wind pressures on tapered and set-back tall buildings", J. Fluid. Struct., 39, 306-321. https://doi.org/10.1016/j.jfluidstructs.2013.02.008
  12. Kim, Y.M., You, K.P. and Ko, N.H. (2008), "Across-wind responses of an aeroelastic tapered tall building", J. Wind Eng. Ind. Aerod., 96, 1307-1319. https://doi.org/10.1016/j.jweia.2008.02.038
  13. Lam, K.M., Wong, S.Y. and To, A.P. (2009), "Dynamic wind loading of H-shaped tall buildings", Proceedings of the Seventh Asia Pacific Conference, Taipei, Taiwan.
  14. Liang, S.G., Liu, S.C., Q.S. L., Zhang, L.L. and Gu, M. (2002), "Mathematic model of acrosswind dynamic loads on rectangular tall buildings", J. Wind Eng. Ind. Aerod., 90, 1757-1770. https://doi.org/10.1016/S0167-6105(02)00285-4
  15. Lin, N., Letchford, C., Tamura, Y., Liang, B. and Nakamura, O. (2005), "Characteristics of wind forces acting on tall buildings", J. Wind Eng. Ind. Aerod., 93(3), 217-242. https://doi.org/10.1016/j.jweia.2004.12.001
  16. Marukawa, H., Ohkuma, T. and Momomura, Y. (1992), "Across wind and torsional acceleration of prismatic high rise buildings", J. Wind Eng. Ind. Aerod., 42(1-3), 1139-1150. https://doi.org/10.1016/0167-6105(92)90121-P
  17. Mukherjee, S., Chakraborty, S., Dalui, S.K. and Ahuja, A.K. (2014), "Wind induced pressure on 'Y' plan shape tall building", Wind Struct., 19(5), 523-540. https://doi.org/10.12989/was.2014.19.5.523
  18. Saunders, J.W. and Melbourne, W.H. (1975), "Tall rectangular building response to cross-wind excitation", Proceedings of the 4th International Conference on Wind Effects on Buildings and Structures, London, September.
  19. Solari, G. (1985), "Mathematical model to predict 3-D loading on buildings", J. Eng. Mech. - ASCE, 111(2), 254-275. https://doi.org/10.1061/(ASCE)0733-9399(1985)111:2(254)
  20. Tamura, Y., Kawai, Y., Uematsu, Y., Marukawa, H., Fujii, K. and Taniike, Y. (1996), "Wind load and wind-induced response estimations in the Recommendations for Loads on Buildings, AIJ 1993", Eng. Struct., 18(6), 399-411. https://doi.org/10.1016/0141-0296(95)00121-2
  21. Tang, Y. (2006), "Research on the wind excited vibrations and static-equivalent wind loads of torsionally coupled high-rise buildings", Ph.D. Dissertation, Tongji University, Shanghai.
  22. Vickery, B.J and Clark, A.W. (1972), "Lift or across-wind response of tapered stacks", J. Struct. Div. - ASCE, 1, 1-20.
  23. Xu, Z.D. and Xie, J.M. (2015), "Assessment of across-wind responses for aerodynamic optimization of tall buildings", Wind Struct., 21(5), 505-521. https://doi.org/10.12989/was.2015.21.5.505

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