Wind and Structures

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Large eddy simulation of wind loads on a long-span spatial lattice roof

  • Li, Chao (Shenzhen Graduate School, Harbin Institute of Technology) ;
  • Li, Q.S. (Department of Building and Construction, City University of Hong Kong) ;
  • Huang, S.H. (School of Engineering Science, University of Science and Technology of China) ;
  • Fu, J.Y. (Department of Civil Engineering, Guangzhou University) ;
  • Xiao, Y.Q. (Shenzhen Graduate School, Harbin Institute of Technology)
  • Received : 2008.12.10
  • Accepted : 2009.09.21
  • Published : 2010.01.25
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Abstract

The 486m-long roof of Shenzhen Citizens Centre is one of the world's longest spatial lattice roof structures. A comprehensive numerical study of wind effects on the long-span structure is presented in this paper. The discretizing and synthesizing of random flow generation technique (DSRFG) recently proposed by two of the authors (Huang and Li 2008) was adopted to produce a spatially correlated turbulent inflow field for the simulation study. The distributions and characteristics of wind loads on the roof were numerically evaluated by Computational Fluid Dynamics (CFD) methods, in which Large Eddy Simulation (LES) and Reynolds Averaged Navier-Stokes Equations (RANS) Model were employed. The main objective of this study is to explore a useful approach for estimations of wind effects on complex curved roof by CFD techniques. In parallel with the numerical investigation, simultaneous pressure measurements on the entire roof were made in a boundary layer wind tunnel to determine mean, fluctuating and peak pressure coefficient distributions, and spectra, spatial correlation coefficients and probability characteristics of pressure fluctuations. Numerical results were then compared with these experimentally determined data for validating the numerical methods. The comparative study demonstrated that the LES integrated with the DSRFG technique could provide satisfactory prediction of wind effects on the long-span roof with complex shape, especially on separation zones along leading eaves where the worst negative wind-induced pressures commonly occur. The recommended LES and inflow turbulence generation technique as well as associated numerical treatments are useful for structural engineers to assess wind effects on a long-span roof at its design stage.

Keywords

Acknowledgement

Supported by : City University of Hong Kong

References

  1. Ahmad, S. and Kumar, K. (2002), "ffect of geometry on wind pressures on low-rise hip roof buildings" J. Wind Eng. Ind. Aerod., 90(7), 755-779. https://doi.org/10.1016/S0167-6105(02)00152-6
  2. Architectural Institute of Japan (2004), Recommendations for loads on buildings.
  3. Banks, D. and Meroney, R.N. (2001), "he applicability of quasi-steady theory to pressure statistics beneath rooftop vortices" J. Wind Eng. Ind. Aerod., 89(6), 569-598. https://doi.org/10.1016/S0167-6105(00)00092-1
  4. Cheng, Y., Lien, F.S., Yee, E. and Sinclair, R. (2003), " comparison of large eddy simulations with a standard kepsilon Reynolds-averaged Navier-Stokes model for the prediction of a fully developed turbulent flow over a atrix of cubes" J. Wind Eng. Ind. Aerod., 91(11), 1301-1328. https://doi.org/10.1016/j.jweia.2003.08.001
  5. Davenport, A.G. (1968), "he dependence of wind load upon meteorological parameters" Proc. of the Int. Research Seminar on Wind Effects on Buildings and Structures, University of Toronto Press, Toronto, 19-82.
  6. Deardorff, J.W. (1970), " numerical study of three-dimensional turbulent channel flow at large Reynolds numbers" J. Fluid Mech., 41, 453-480. https://doi.org/10.1017/S0022112070000691
  7. Fluent, Inc. (2007), Fluent 6.3 User's Guide.
  8. Fluent. Inc. (2006), Gambit 2.3 Documentation.
  9. Franchini, S., Pindado, S., Meseguer, J. and Sanz-Andres, A. (2005), " parametric, experimental analysis of conical vortices on curved roofs of low-rise buildings" J. Wind Eng. Ind. Aerod., 93(8), 639-650. https://doi.org/10.1016/j.jweia.2005.07.001
  10. Fu, J.Y., Li, Q.S. and Xie, Z.N. (2006), "rediction of wind loads on a large flat roof using fuzzy neural networks" Eng. Struct., 28(1), 153-161. https://doi.org/10.1016/j.engstruct.2005.08.006
  11. Fu, J.Y. and Li, Q.S. (2007), "ind effects on the World' longest spatial lattice structure: loading characteristics and numerical prediction" J. Constr. Steel Res., 63, 1341-1350. https://doi.org/10.1016/j.jcsr.2006.12.001
  12. GB50009-2001 (2002), Load code for the design of building structures, Beijing: China Architecture & Building Press.
  13. Germano, M., Piomelli, U., Moin, P. and Cabot, W.H. (1991), " dynamic subgrid-scale eddy viscosity model" Phys. Fluids, 3, 1760. https://doi.org/10.1063/1.857955
  14. He, H., Ruan, D., Mehta, K.C., Gilliam, X. and Wu, F. (2007), "onparametric independent component analysis for detecting pressure fluctuation induced by roof corner vortex" J. Wind Eng. Ind. Aerod., 95(6), 429-443. https://doi.org/10.1016/j.jweia.2006.08.006
  15. He, J. and Song, C.C. (1997), " numerical study of wind flow around the TTU building and the roof corner vortex" J. Wind Eng. Ind. Aerod., 67-68, 547-558. https://doi.org/10.1016/S0167-6105(97)00099-8
  16. Holmes, J.D. (1981), "on-Gaussian characteristics of wind pressure fluctuations" J. Wind Eng. Ind. Aerod., 17, 103-108.
  17. Holmes, J.D. (2001), Wind Loading of Structures, Spon Press.
  18. Huang, S.H. and Li, Q.S. (2008), " general inflow turbulence generator for large eddy simulation" submitted to J. Wind Eng. Ind. Aerod.
  19. Huang, S.H., Li, Q.S. and Xu, S. (2007), "umerical evaluation of wind effects on a tall steel building by CFD" J. Constr. Steel Res., 63(5), 612-627. https://doi.org/10.1016/j.jcsr.2006.06.033
  20. Kim, S. (2004), "arge eddy simulation using an unstructured mesh based finite-Volume solver" 34th AIAA Fluid Dynamics Conf. and Exhibit, Portland, Oregon.
  21. Kim, W.W. and Menon, S. (1995), " new dynamic one-equation subgrid-scale model for large eddy simulations" AIAA, 33rd Aerospace Sciences Meeting and Exhibit, Reno, NV.
  22. Launder, B.E. and Spalding, D.B. (1974), "he numerical computation of turbulent flows" Comput. Methods Appl. M., 3, 269-289. https://doi.org/10.1016/0045-7825(74)90029-2
  23. Letchford, C.W., Iverson, R.E. and McDonald, J.R. (1993), "he application of the quasi-steady theory to full scale measurements on the Texas Tech Building" J. Wind Eng. Ind. Aerod., 48, 111-132. https://doi.org/10.1016/0167-6105(93)90284-U
  24. Li, Q.S., Calderone, I. and Melbourne, W.H. (1999), "robabilistic characteristics of pressure fluctuations in separated and reattaching flows for various free-stream turbulence" J. Wind Eng. Ind. Aerod., 82(1-3), 125-145. https://doi.org/10.1016/S0167-6105(98)00214-1
  25. Li, Q.S. and Melbourne, W.H. (1999), "he effects of large scale turbulence on pressure fluctuations in separated and reattaching flow" J. Wind Eng. Ind. Aerod., 83, 159-169. https://doi.org/10.1016/S0167-6105(99)00069-0
  26. Li, Q.S., Fang, J.Q., Jeary, A.P., Wong, C.K. and Liu, D.K. (2000), "valuation of wind effects on a super tall building based on full scale measurements" Earthq. Eng. Struct. D., 29(12), 1845-1862. https://doi.org/10.1002/1096-9845(200012)29:12<1845::AID-EQE995>3.0.CO;2-Q
  27. Li, Q.S., Yang, K., Wong, C.K. and Jeary, A.P. (2003), "he effect of amplitude-dependent damping on wind induced vibrations of a super tall building" J. Wind Eng. Ind. Aerod., 91, 1175-1198. https://doi.org/10.1016/S0167-6105(03)00080-1
  28. Li, Q.S., Xiao, Y.Q., Wong, C.K. and Jeary, A.P. (2004), "ield measurements of typhoon effects on a super tall building" Eng. Struct., 26, 233-244. https://doi.org/10.1016/j.engstruct.2003.09.013
  29. Lilly, D.K. (1992), " proposed modification of the Germano subgrid-scale closure method" Phys. Fluids, 4(3), 633-635. https://doi.org/10.1063/1.858280
  30. Mochida, A., Tominaga, Y., Murakami, S., Yoshie, R., Ishihara, T. and Ooka, R. (2002), "omparison of various k-epsilon models and DSM applied to flow around a high-rise building - report on AIJ cooperative project for CFD prediction of wind environment" Wind Struct., 5(2-4), 227-244. https://doi.org/10.12989/was.2002.5.2_3_4.227
  31. Murakami, S. (1998), "verview of turbulence models applied in CWE-1997" J. Wind Eng. Ind. Aerod., 74-76, 1-24. https://doi.org/10.1016/S0167-6105(98)00004-X
  32. National Standard of the People's Republic of China (2001), Chinese code for loading on buildings and structures, GB50009-2001.
  33. Richards, P.J. and Hoxey, R.P. (2006), "low reattachment on the roof of a 6 m cube" J. Wind Eng. Ind. Aerod., 94(2), 77-99. https://doi.org/10.1016/j.jweia.2005.12.002
  34. Robertson, A.P., Hoxey, R.P., Rideout, N.M. and Freathy, P. (2007), "ull-scale study of wind loads on roof tiles and felt underlay and comparisons with design data" Wind Struct., 10(6), 495-510. https://doi.org/10.12989/was.2007.10.6.495
  35. Smagorinsky, J. (1963), "eneral circulation experiments with the primitive equations. I. the basic experiment" Mon. Weather Rev., 99-164.
  36. Tutar, M. and Celik, I. (2007), "arge eddy simulation of a square cylinder flow: Modelling of inflow turbulence" Wind Struct., 10(6), 511-532. https://doi.org/10.12989/was.2007.10.6.511
  37. Uematsu, Y. and Isyumov, N. (1998), "eak gust pressures acting on the roof and wall edges of a low-rise building" J. Wind Eng. Ind. Aerod., 77-78, 217-231. https://doi.org/10.1016/S0167-6105(98)00145-7
  38. Welch, P. (1967), "he use of fast Fourier transform for the estimation of power spectra: A method based on time averaging over short" IEEE T. Audio Electro., modified periodograms, 15(2), 70-73. https://doi.org/10.1109/TAU.1967.1161901
  39. Wilcox, D.C. (1993), Turbulence modeling for CFD, La Canada, CA, DCW Industries, Inc.
  40. Zhang, N., Jiang, W.M. and Miao, S.G. (2006), " large eddy simulation on the effect of buildings on urban flows" Wind Struct., 9(1), 23-35. https://doi.org/10.12989/was.2006.9.1.023

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