Wind-Induced Pressures on Patio Covers
Publication: Journal of Structural Engineering
Volume 136, Issue 9
Abstract
A wind tunnel study has been carried out to assess wind loads on patio covers attached to low-rise buildings. A 1:100 geometric scale building and patio cover model was constructed and tested for open exposure conditions. The patio cover model was instrumented with pressure taps on both top and bottom surfaces, allowing the simultaneous measurement of wind pressure/suction on each side of the patio cover. The effect of building/patio height was considered by testing three different model configurations. Local surface and net wind pressure and force coefficients are presented for each model configuration. Correlation analysis was carried out to demonstrate how wind flow on the top and bottom of the patio cover affects the total wind load. The findings are also compared to the limited design guidelines derived by current building codes. Finally, recommendations for design wind load standards and codes of practice are made.
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References
ASCE. (2005). “Minimum design loads for building and other structures.” ASCE/SEI 7-05, Reston, Va.
British Standard Institute. (1997). “Loading for buildings—Part 2: Code of practice for wind loads.” BS 6399-2, London.
CEN. (2004). “Eurocode 1: Actions on structures—General actions—Part 1.4: Wind actions.” prEN 1991-1-4, Brussels.
Cook, N. J. (1985). The designer’s guide to wind loading of building structures. Part 2: Static pressures, Butterworth Scientific, London.
ICC Evaluation Service, Inc. (2007). “Acceptance criteria for patio covers.” AC340, Whittier, Calif.
International Code Council. (2006a). International building code (IBC), Fall Church, Va.
International Code Council. (2006b). International residential code (IRC), Fall Church, Va.
Jancauskas, L., and Holmes, J. (1985). “Wind loads on attached canopies.” Proc., National Conf. on Wind Engineering, Texas Tech Univ., Lubbock, Tex.
National Research Council of Canada. (2005). National Building Code of Canada (NBCC), Ottawa, ON.
Scanivalve Corporation. (2003a). DSM 3000—Digital service module, instruction and service manual, Scanivalve Corporation, Liberty Lake, Wash.
Scanivalve Corporation. (2003b). ZOC 33/64Px—Electronic pressure scanning module, instruction and service manual, Scanivalve Corporation, Liberty Lake, Wash.
Standards Australia International Ltd.–Standards New Zealand. (2002). “Australian/New Zealand standards, structural design actions—Part 2, wind actions.” AS/NZS 1170.2.
Stathopoulos, T., and Luchian, H. D. (1994). “Wind-induced forces on eaves of low buildings.” J. Wind. Eng. Ind. Aerodyn., 52, 249–261.
Tieleman, H. W., Hajj, M. R., and Reinhold, T. A. (1998). “Wind tunnel simulation requirements to asses wind loads on low-rise buildings.” J. Wind. Eng. Ind. Aerodyn., 74–76, 675–685.
Uematsu, Y., Iizumi, E., and Stathopoulos, T. (2007). “Wind force coefficients for designing free-standing canopy roofs.” J. Wind. Eng. Ind. Aerodyn., 95(9–11), 1486–1510.
Uematsu, Y., Stathopoulos, T., and Iizumi, E. (2008a). “Wind loads on free-standing canopy roofs: Part 1. Local wind pressures.” J. Wind. Eng. Ind. Aerodyn., 96(6–7), 1015–1028.
Uematsu, Y., Stathopoulos, T., and Iizumi, E. (2008b). “Wind loads on free-standing canopy roofs: Part 2. Overall wind forces.” J. Wind. Eng. Ind. Aerodyn., 96(6–7), 1029–1042.
Information & Authors
Information
Published In
Journal of Structural Engineering
Volume 136 • Issue 9 • September 2010
Pages: 1172 - 1181
Copyright
© 2010 ASCE.
History
Received: Oct 8, 2009
Accepted: Feb 18, 2010
Published online: Feb 20, 2010
Published in print: Sep 2010
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