Structurally Effective Static Wind Loads for Roof Panels
Publication: Journal of Structural Engineering
Volume 133, Issue 6
Abstract
A detailed comparison of the recent full-scale tests conducted at Mississippi State University (MSU) using simulated wind loads on a portion of a standing seam metal roof and model-scale wind tunnel tests carried out at the University of Western Ontario of an aeroelastic “failure” model of the same roof system is presented. In spite of the significantly different approaches, the results obtained were remarkably consistent. The tests suggest that, at the roof corner, the E1592 uniform pressure test contains conservatism of about 50% for the roof system tested by both approaches; and up to about 80% for the other roof systems tested only at MSU. This conservatism arises if the roof system is required to withstand the code-recommended pressure applied as uniform pressure in the E1592 test, without accounting for the reality of the dynamic spatially varying properties of the wind-induced pressures. In general, the tests also suggest that influence surface approaches together with experimentally measured pressure distributions provide an excellent way of determining the effective loads on various components.
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Acknowledgments
This work was supported at various phases by the Metal Building Manufacturers Association (MBMA), the American Iron and Steel Institute, the Metal Construction Association, and FMGlobal, under the guidance of an advisory committee. The advisory committee was coordinated by W. Lee Shoemaker of MBMA and included the participation of Hosam Ali, Helen Chen, Alan Davenport, Ashraf El-Damatty, Dave Fulton, Maury Golovin, James Goodwillie, Gill Harris, Jerry Hatch, Eric Ho, Eric Masterson, John Mattingly, Burt Nail, David Prevatt, Kenneth Rhodes, Richard Schroter, Paul Senseny, Ralph Sinno, David Surry, Mark Thimons, and Robert Wills. The results and conclusions of this paper may not reflect the opinions of the sponsors or the advisory committee. One of the writers (G.A.K.) gratefully acknowledges the support of the Canada Research Chairs Program.
References
ASCE. (2002). “Minimum design loads for buildings and other structures.” ASCE 7-02, Reston, Va.
ASTM. (2001). “Standard test method for structural performance of sheet metal roof and siding systems by uniform static air pressure difference.” E 1592-01, West Conshohocken, Pa.
Cook, N. J., Keevil, A. P., and Stobart, R. K. (1988). “BRERWULF—The big bad wolf.” J. Wind. Eng. Ind. Aerodyn., 29(1–3), 99–107.
Farquhar, S., Kopp, G. A., and Surry, D. (2005). “Wind tunnel and uniform pressure tests of a standing seam metal roof model.” J. Struct. Eng., 131(4), 650–659.
Farquhar, S. W. A. (2003). “Wind tunnel and uniform pressure testing of a standing seam metal roof model.” MESc thesis, Univ. of Western Ontario, London.
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. 1: Archiving format and basic aerodynamic data.” J. Wind. Eng. Ind. Aerodyn., 93(1), 1–30.
Sinno, R., Nail, J., and Fowler, S. (2001). “MBMA final report-Simulation of nonuniform unsteady wind pressures.” Civil Engineering Dept., Mississippi State Univ., Miss.
Information & Authors
Information
Published In
Journal of Structural Engineering
Volume 133 • Issue 6 • June 2007
Pages: 871 - 885
Copyright
© 2007 ASCE.
History
Received: Nov 28, 2005
Accepted: May 15, 2006
Published online: Jun 1, 2007
Published in print: Jun 2007
Notes
Note. Associate Editor: Kurtis R. Gurley
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