Comparisons of Two Wind Tunnel Pressure Databases and Partial Validation against Full-Scale Measurements
Publication: Journal of Structural Engineering
Volume 140, Issue 10
Abstract
Database-assisted design (DAD) is an integrated methodology that calculates wind loadings and wind-induced internal forces. It can also calculate demand-to-capacity indexes for each structural member, and by checking whether they differ significantly from unity, determine the adequacy of the members’ structural design. Its practical usefulness depends on the availability of comprehensive aerodynamic databases. A public domain aerodynamic database produced in 2003 by the University of Western Ontario (UWO) is not sufficiently extensive to satisfy design needs generally encountered in practice. For this reason, the Tokyo Polytechnic University (TPU) recently developed comprehensive sets of aerodynamic databases that are publicly available and would fill large voids present in the UWO database. This paper presents comparisons of aerodynamic pressures and forces based on TPU and UWO data for low-rise buildings to help assess the extent to which the respective aerodynamic pressure measurements are comparable. In addition, the paper presents a brief review of comparisons between full-scale and UWO wind tunnel measurements of pressures on the Texas Tech University experimental building. The results presented in the paper, though not exhaustive, suggest that TPU and UWO pressure simulations are reasonably equivalent, and may in practice be used for the design of main wind force resisting systems.
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Acknowledgments
The work presented in this paper was initiated by Dr. E. Simiu, whose advice is gratefully acknowledged; as are the reviewers’ constructive and helpful comments.
References
ASCE. (2010). “Minimum design loads for buildings and other structures.” American Society of Civil Engineers, Reston, VA.
Coffman, B. F., Main, J. A., Duthinh, D., and Simiu, E. (2010). “Wind effects on low-rise metal buildings: Database-assisted design versus ASCE 7-05 standard estimates.” J. Struct. Eng., 744–748.
Counihan, J. (1975). “Adiabatic atmospheric boundary layers: A review and analysis of data from the period 1880–1972.” Atmos. Environ., 9(10), 871–905.
Datin, P. L. (2010). “Structural load paths in low-rise, wood-framed structures.” Doctoral dissertation, Univ. of Florida, Gainesville, FL.
Duthinh, D., and Fritz, W. P. (2007). “Safety evaluation of low-rise steel structures under wind loads by nonlinear database-assisted technique.” J. Struct. Eng., 587–594.
Duthinh, D., Main, J. A., Wright, A. P., and Simiu, E. (2008). “Low-rise steel structures under directional winds: Mean recurrence interval of failure.” J. Struct. Eng., 1383–1388.
Ellingwood, B. R., Galambos, T. V., MacGregor, J. G., and Cornell, C. A. (1980). “Development of a probability based load criterion for American national standard A58.” NBS special publication 577, National Bureau of Standards, Washington, DC.
Fritz, W. P., et al. (2008). “International comparison of wind tunnel estimates of wind effects on low-rise buildings: Test-related uncertainties.” J. Struct. Eng., 1887–1890.
Ho, T. C. E., Surry, D., and Morrish, D. P. (2003a). “NIST/TTU cooperative agreement/windstorm mitigation initiative: Wind tunnel experiments on generic low buildings.”, Boundary Layer Wind Tunnel Laboratory, Univ. of Western Ontario, London, Canada.
Ho, T. C. E., Surry, D., Morrish, D., and Kopp, G. A. (2005). “The UWO contribution to the NIST aerodynamic database for wind loads on low buildings Part I. Archiving format and basic aerodynamic data.” J. Wind Eng. Ind. Aerodyn., 93(1), 1–30.
Ho, T. C. E., Surry, D., and Nywening, M. (2003b). “NIST/TTU cooperative agreement/windstorm mitigation initiative: Further experiments on generic low buildings.”, Boundary Layer Wind Tunnel Laboratory, Univ. of Western Ontario, London, Canada.
Irwin, P. A. (2011). Wind engineering research needs, Technical Council 358 on Wind Engineering, ASCE, Reston, VA.
Jang, S., Lu, L.-W., Sadek, F., and Simiu, E. (2002). “Database-assisted wind load capacity estimates for low-rise steel frames.” J. Struct. Eng., 1594–1603.
Long, F. (2004). “Uncertainties in pressure coefficients derived from full and model scale data.” Master’s thesis, Texas Tech Univ., Lubbock, TX.
Main, J. A. (2011). “Special-purpose software: MATLAB functions for estimation of peaks from time series.” 〈http://www.itl.nist.gov/div898/winds/peakest_files/peakest.htm〉 (Jul. 25, 2013).
Main, J. A., and Fritz, W. P. (2006). “Database-assisted design for wind: Concepts, software, and examples for rigid and flexible buildings.” NIST building science series 180, National Institute of Standards and Technology, Gaithersburg, MD.
Mensah, A. F. (2010). “Determination of wind uplift forces using database-assisted design approach for light framed-wood structures.” M.S. thesis, Univ. of Florida, Gainesville, FL.
Mensah, A. F., Datin, P. L., Prevatt, D. O., Gupta, R., and van de Lindt, J. W. (2011). “Database-assisted design methodology to predict wind-induced structural behavior of a light-framed wood building.” Eng. Struct., 33(2), 674–684.
NIST. (2013). “Measurement science R&D roadmap for windstorm and coastal inundation impact reduction.”, National Institute of Standards and Technology, Gaithersburg, MD.
Peng, X., Yang, L., Gurley, K., Prevatt, D., and Gavanski, E. (2013). “Prediction of peak wind loads on a low-rise building.” Proc., 12th Americas Conf. on Wind Engineering, Univ. of Washington, Seattle.
Roueche, D. B., Prevatt, D. O., Haan, F. L., and Datin, P. L. (2013). “An estimate of tornado loads on a wood-frame building using database-assisted design methodology.” 12th Americas Conf. of Wind Engineering, Univ. of Washington, Seattle, WA.
Sadek, F., and Simiu, E. (2002). “Peak non-Gaussian wind effects for database-assisted low-rise building design.” J. Eng. Mech., 530–539.
Seo, D., and Caracoglia, L. (2010). “Derivation of equivalent gust effect factors for wind loading on low-rise buildings through database-assisted-design approach.” Eng. Struct., 32(1), 328–336.
Simiu, E. (2011). Design of buildings for wind, 2nd Ed., Wiley, Hoboken, NJ.
Simiu, E., and Scanlan, R. H. (1996). Wind effects on structures, 3rd Ed., Wiley, New York.
St. Pierre, L. M., Kopp, G. A., Surry, D., and Ho, T. C. E. (2005). “The UWO contribution to the NIST aerodynamic database for wind loads on low buildings: Part II. Comparison of data with wind load provisions.” J. Wind Eng. Ind. Aerodyn., 93(1), 31–59.
Tamura, Y. (2012). “Aerodynamic database for low-rise buildings.” Global Center of Excellence Program, Tokyo Polytechnic Univ., Tokyo, Japan, 〈http://www.wind.arch.t-kougei.ac.jp/system/contents/code/tpu〉 (Dec. 12, 2013).
Yeo, D., and Simiu, E. (2011). “High-rise reinforced concrete structures: Database-assisted design for wind.” J. Struct. Eng., 1340–1349.
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© 2014 American Society of Civil Engineers.
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Received: May 3, 2013
Accepted: Nov 12, 2013
Published online: May 12, 2014
Published in print: Oct 1, 2014
Discussion open until: Oct 12, 2014
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