Browse > Article
http://dx.doi.org/10.12989/was.2012.15.6.495

Acrosswind aeroelastic response of square tall buildings: a semi-analytical approach based of wind tunnel tests on rigid models  

Venanzi, I. (Department of Civil and Environmental Engineering, University of Perugia)
Materazzi, A.L. (Department of Civil and Environmental Engineering, University of Perugia)
Publication Information
Wind and Structures / v.15, no.6, 2012 , pp. 495-508 More about this Journal
Abstract
The present paper is focused on the prediction of the acrosswind aeroelastic response of square tall buildings. In particular, a semi-analytical procedure is proposed based on the assumption that square tall buildings, for reduced velocities corresponding to operational conditions, do not experience vortex shedding resonance or galloping and fall in the range of positive aerodynamic damping. Under these conditions, aeroelastic wind tunnel tests can be unnecessary and the response can be correctly evaluated using wind tunnel tests on rigid models and analytical modeling of the aerodynamic damping. The proposed procedure consists of two phases. First, simultaneous measurements of the pressure time histories are carried out in the wind tunnel on rigid models, in order to obtain the aerodynamic forces. Then, aeroelastic forces are analytically evaluated and the structural response is computed through direct integration of the equations of motion considering the contribution of both the aerodynamic and aeroelastic forces. The procedure, which gives a conservative estimate of the aeroelastic response, has the advantage that aeroelastic tests are avoided, at least in the preliminary design phase.
Keywords
aeroelastic force; aerodynamic damping; tall buildings; wind tunnel tests; rigid models; square cross-section;
Citations & Related Records
Times Cited By KSCI : 3  (Citation Analysis)
연도 인용수 순위
1 Amandolese, X. and Hemon, P. (2010), "Vortex-induced vibration of a square cylinder in wind tunnel", C. R. Mecanique, 338(1), 12-17.   DOI   ScienceOn
2 Boggs, D.W. (1992), "Validation of the aerodynamic model method", J. Wind Eng. Ind. Aerod., 42(1-3), 1011-1022.   DOI   ScienceOn
3 Braun, A.L. and Awruch, A.M. (2009), "Aerodynamic and aeroelastic analyses on the CAARC standard tall building model using numerical simulation", Comput Struct., 87(9-10), 564-581   DOI   ScienceOn
4 Cheng, C.M., Lu, P.C. and Tsai, M.S. (2002), "Acrosswind aerodynamic damping of isolated square-shaped buildings", J. Wind Eng. Ind. Aerod., 90(12-15), 1743-1756.   DOI   ScienceOn
5 Gabbai, R.D. and Simiu, E. (2010), "Aerodynamic damping in the along-wind response of tall buildings", J. Struct. Eng.- ASCE, 136(1), 117-119.   DOI   ScienceOn
6 Gu, M. and Quan, Y. (2004), "Across-wind loads of typical tall buildings", J. Wind Eng. Ind. Aerod., 92(13), 1147-1165.   DOI   ScienceOn
7 Hayashida, H. and Iwasa, Y. (1990), "Aerodynamic shape effects for tall building for vortex induced vibration", J. Wind Eng. Ind. Aerod., 33(1-2), 237-242.   DOI   ScienceOn
8 Kawai, H. (1998), "Effect of corner modifications on aeroelastic instabilities of tall buildings", J. Wind Eng. Ind. Aerod., 74-76, 719-729.   DOI
9 Kawai, H. (1992), "Vortex induced vibration of tall buildings", J. Wind Eng. Ind. Aerod., 41(1-3), 117-128.   DOI   ScienceOn
10 Kim, Y. and Kanda, J. (2010) "Effects of taper and set back on wind force and wind-induced response of tall buildings", Wind Struct., 13(6), 499-517.   DOI
11 Kwok, K.C.S. and Melbourne, W.H. (1981), "Wind induced lock-in excitation of tall structures", J. Struct. Div.- ASCE, 107(1), 57-72.
12 Kwok, K.C.S. (1977), Cross-wind response of structures due to displacement dependent excitations, Ph.D. Thesis, Monash University, Victoria, Australia.
13 Marukawa, H., Kato, N., Fujii, K. and Tamura, Y. (1996), "Experimental evaluation of aerodynamic damping of tall buildings", J. Wind Eng. Ind. Aerod., 59(2-3), 177-190.   DOI
14 Novak, M. (1972), "Galloping oscillations of prismatic structures", J. Eng. Mech. Div., 98(EM1), 27-46.
15 Quan, Y., Gu, M. and Tamura, Y. (2005), "Experimental evaluation of aerodynamic damping of square super high-rise buildings", Wind Struct., 8(5), 309-324.   DOI
16 Stackley, A. (1989), Motion-induced wind forces on chimneys and tall buildings, PhD Thesis, University of Western Ontario.
17 Suda, K., Satake, N., Ono, J. and Sasaki, A. (1996), "Damping properties of buildings in Japan", J. Wind Eng. Ind. Aerod., 59(2-3), 383-392.   DOI
18 Vickery, B.J. and Steckley, A. (1993), "Aerodynamic damping and vortex excitation on an oscillating prism in turbulent shear flow", J. Wind Eng. Ind. Aerod., 49, 121-140.   DOI
19 Washizu, K., Ohya, A., Otsuki, Y. and Fujii, K. (1978), "Aeroelastic instability of rectangular cylinders in a heaving mode", J. Sound Vib., 59(2), 195-210.   DOI   ScienceOn
20 Wawzonek, M.A. and Parkinson, G.V. (1979), "Combined effects of galloping instability and vortex resonance, Proceedings of the 5th Int. Conf. Wind Engineering, Fort Collins, 673-684.
21 Wu, H.Y., Liang, S.G., Chen, Z.Q. and Peng, X.H. (2010) "Research on the aerodynamic damping ratios of square tall buildings in across-wind direction under strong wind", Gongcheng Lixue/Eng. Mech., 27(10), 96- 103.
22 Wu, J.R., Li, Q.S. and Tuan, A.Y. (2008) "Wind induced lateral-torsional response of tall buildings", Wind Struct., 11(2), 153-178.   DOI