Non-Gaussian Wind Pressure on Prismatic Buildings. I: Stochastic Field
Publication: Journal of Structural Engineering
Volume 127, Issue 9
Abstract
This paper and a companion paper present a complete study (analysis, modeling, and numerical simulation) of the wind pressure field on prismatic tall buildings, taking into account its non-Gaussian nature. In this paper, the analysis of the data obtained by wind tunnel experimental tests is used to provide a systematic characterization of the stochastic pressure field. First, the experimental work is briefly described; then the wind pressure statistical moments up to the second order (mean, standard deviation, and spectral densities) are obtained. Comparisons with results reported in the literature are used to validate the reliability of the experimental measurements. Histograms of the experimental data in the separated flow regions (vortex shedding and wake) are used to identify the non-Gaussian nature of the pressure fluctuations. Maps of higher-order statistical moments (skewness and kurtosis coefficients) at the four faces of the model are proposed to obtain an easy tool to localize regions with non-Gaussian features and give a measurement of the non-Gaussianity. The influence of the incoming flow direction on the parameters of interest is also considered.
Get full access to this article
View all available purchase options and get full access to this article.
References
1.
ASCE. ( 1995). “Minimum design loads for buildings and other structures.” ASCE 7-95, New York.
2.
Augusti, G., Baratta, A., and Casciati, F. ( 1984). Probabilistic methods in structural engineering. Chapman and Hall, London.
3.
Dalgliesh, A. W. (1971). “Statistical treatment of peak gusts on cladding.”J. Struct. Div., ASCE, 97(9), 2173–2187.
4.
Gioffrè, M. ( 1998). “Analysis and simulation of non-Gaussian processes with application to wind engineering and reliability.” PhD thesis, University of Florence, Italy.
5.
Gioffrè, M., Gusella, V., and Grigoriu, M. (2001). “Non-Gaussian wind pressure on prismatic buildings. II: Numerical simulation.”J. Struct. Engrg., ASCE, 127(9), 990–995.
6.
Grigoriu, M. ( 1995). Applied non-Gaussian processes: Examples, theory, simulation, linear random vibration and MATLAB solutions, Prentice-Hall, Englewood Cliffs, N.J.
7.
Holmes, J. D. ( 1981). “Non-Gaussian characteristics of wind pressure fluctuations.” J. Wind Engrg. and Industrial Aerodynamics, Amsterdam, 7, 103–108.
8.
Kareem, A. ( 1978). “Wind excited motion of tall buildings.” PhD thesis, Colorado State University, Fort Collins, Colo.
9.
Kasperski, M., Koss, H., and Sahlmen, J. ( 1996). “Beatrice joint project: Wind action on low-rise building. Part 1: Basic information and first result.” J. Wind Engrg. and Industrial Aerodynamics, Amsterdam, 64, 101–125.
10.
Kawai, H. ( 1983). “Pressure fluctuations on square prisms—Applicability of strip and quasi-steady theories.” J. Wind Engrg. and Industrial Aerodynamics, Amsterdam, 13, 197–208.
11.
Kumar, K. S., and Stathopoulos, T. ( 1998). “Non-Gaussian wind pressure fluctuations on roofs.” Proc., 12th Engrg. Mech. Conf., La Jolla, Calif., 1423–1426.
12.
Marshall, R. D. ( 1975). “Wind loads on single-story houses.” Proc., 8th U.S. Nat. Conf. on Wind Engrg., Fort Collins, Colo.
13.
Melburne, W. H. ( 1980). “Comparison of measurements on the CAARC standard tall building model in simulated model wind flows.” J. Wind Engrg. and Industrial Aerodynamics, Amsterdam, 6, 73–88.
14.
Peterka, J. A., and Cermak, J. E. (1975). “Wind pressures on buildings—Probability densities.”J. Struct. Div., ASCE, 101(6), 1255–1267.
15.
Peterka, J. A., Meroney, R. N., and Kothari, K. M. ( 1985). “Wind flow patterns about buildings.” J. Wind Engrg. and Industrial Aerodynamics, Amsterdam, 21, 21–38.
16.
Sakamoto, H., and Arie, M. ( 1983). “Vortex shedding from a rectangular prism and a circular cylinder placed vertically in a turbulent boundary layer.” J. Fluid Mech., London, 126, 147–165.
17.
Simiu, E., and Scanlan, R. H. ( 1996). Wind effects on structures: Fundamentals and applications to design, 3rd Ed., Wiley Interscience, New York.
18.
Stathopoulos, T. (1980). “PDF of wind pressures on low-rise buildings.”J. Struct. Div., ASCE, 106(5), 973–990.
19.
Tanaka, H., and Lawen, N. ( 1986). “Test on the CAARC standard tall building model with a length scale of 1:1000.” J. Wind Engrg. and Industrial Aerodynamics, Amsterdam, 25, 15–29.
20.
Wardlaw, R. L., and Moss, G. F. ( 1970). “Standard tall building model for comparison of simulated natural winds in wind tunnels.” Rep. CC-662, Tech. 25, Commonwealth Advisory Aeronautical Research Council, Canada.
Information & Authors
Information
Published In
History
Received: Jul 7, 1999
Published online: Sep 1, 2001
Published in print: Sep 2001
Authors
Metrics & Citations
Metrics
Citations
Download citation
If you have the appropriate software installed, you can download article citation data to the citation manager of your choice. Simply select your manager software from the list below and click Download.