A More Precise Computation of Along Wind Dynamic Response Analysis for Tall Buildings Built in Urban Areas

Shu-Xun Chen

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DOI: 10.4236/eng.2010.24038                

Abstract

Modern tall buildings are generally built in urban areas, where value of the terrain roughness length is much greater than that of the general terrain areas, therefore wind-induced vibrations become more pronounced. The present formulas of numerical analysis of wind-induced response become less accurate. A more accurate expression of along-wind load spectrum matrix is proposed. On the basis of the expression, structural analysis formula of along-wind displacement and acceleration response are developed and programmed. The rationality of these formulas are illustrated in examples.

Keywords

Tall Building, Wind Load Spectrum, Wind-Induced Vibration, Response Analysis, Structural Analysis

Conflicts of Interest

The authors declare no conflicts of interest.

References

[1]	A.G. Davenport, “Gust Loading Factors,” Journal of the Structural Divasion, 1977, pp. 11-34.
[2]	A.G. Davenport, “The Prediction Spectrum of Horizontal Gustiness Near the Ground in High Winds,” 1963, pp. 194-211.
[3]	C. Dyrbye and S. O. Hansen, “Wind Loads on Structures,” John Wiley & Sons Inc., New York, 1996, pp. 49-106.
[4]	C. H. Thorton, L. Joseph, et al., “Optimization of Tall Structures for Wind Loading ,” Journal of Wind Engineering and Aerodynamics, Vol. 36, 1990, pp. 235-244.
[5]	E. Simiu and R. H. Scanlan, “Wind Effcts on Structrures: A Introduction to Wind Engineering,” John Wiley & Sons Inc., New York, 1986.
[6]	P. Sachs, “Wind Force in Engineering,” Pergamon Press, Oxford, 1978, pp. 12-88.
[7]	A. Pupleace, “Probability, Random Variable and Random Process”, High Education Press, Beijing, 1983, pp. 18-48.
[8]	L. G. Griffis, “Serviceability Limit States Under Wind Load,” Engineering Journal of American Institute of Steel Construction, 1993, pp. 23-28.
[9]	B. J. Vickery, et al., “The Role of Damping, Mass and Stiffness in The Reduction of Wind Effects on Structures,” Journal of Wind Engineering and Industrial Aerodynamics, Vol. 11, 1983, pp. 265-294.
[10]	Ad Hoc Committee on Serviceability Research, “Structural Serviceability: A Critical Appraisal and Research Need”, Journal of Structural Engineering, Vol. 112, No. 12, 1986, pp. 2646-2664.
[11]	D. Surry and E. M. F. Stopar, “Wind Loading of Large Low Building,” Journal of Civil Engineering, Vol. 16, 1989, pp. 526-542.
[12]	F. K. Chang, “Human Response to Motions in Tall Building,” Journal of Structural Division, Vol. 99, 1973, pp. 1259-1272.
[13]	B. Blocken, et al., “Wind, Rain and the Building Envelope: Studies at the Laboratory of Building Physics,” KU Leuven, 2002, pp. 36-66.
[14]	L. M. Fitzwater and S. R. Winterstein, “Predicting Design Wind Turbine Loads From Limited Data: Comparing Random Process and Random Peak Models,” Journal of Solar Energy Engineering, Vol. 123, No. 4, 2001, pp. 364-371.