Wind loads on planar canopy roofs, Part 2: fluctuating pressure distributions and correlations

Ginger J.D. and Letchford C.W. (1994) Wind loads on planar canopy roofs, Part 2: fluctuating pressure distributions and correlations. Journal of Wind Engineering and Industrial Aerodynamics, 51 3: 353-370. doi:10.1016/0167-6105(94)90068-X


Author Ginger J.D.
Letchford C.W.
Title Wind loads on planar canopy roofs, Part 2: fluctuating pressure distributions and correlations
Journal name Journal of Wind Engineering and Industrial Aerodynamics   Check publisher's open access policy
ISSN 0167-6105
Publication date 1994-01-01
Sub-type Article (original research)
DOI 10.1016/0167-6105(94)90068-X
Volume 51
Issue 3
Start page 353
End page 370
Total pages 18
Subject 2105 Renewable Energy, Sustainability and the Environment
2205 Civil and Structural Engineering
2210 Mechanical Engineering
2200 Engineering
Abstract Fluctuating pressure distributions on planar canopy roofs are presented based 1:100 scale wind tunnel measurements obtained in a simulated suburban atmospheric boundary layer. For a range of roof pitch angles and wind directions, point and area-averaged pressure measurements were obtained with the worst loads experienced adjacent to lines of flow separation. For two particular roof pitches the cross correlations of area-averaged pressures were obtained and the covariance integration technique used to estimate the total fluctuating loads on the roof for a range of wind directions. Significant reductions in overall uplift and racking loads, were obtained using this method when compared with the traditional quasi-steady approach. This is because the partial correlation of fluctuating pressures is accounted for in covariance integration.
Keyword Canopy roof
Coder
Covariance integration
Wind loads
Q-Index Code C1
Q-Index Status Provisional Code
Institutional Status Unknown

Document type: Journal Article
Sub-type: Article (original research)
Collection: Scopus Import - Archived
 
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Created: Tue, 30 Aug 2016, 11:41:40 EST by System User