| Download | - View final version: Snow drifts on flat roofs : wind tunnel tests and field measurements (PDF, 2.6 MiB)
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| Author | Search for: da Matha Sant'Anna, F.; Search for: Taylor, D. A.1 |
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| Affiliation | - National Research Council of Canada. NRC Institute for Research in Construction
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| Format | Text, Article |
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| Subject | Snow and Ice loads; Wind loads; roofing; snow loads; flat roofs; model tests; full scale field tests; charge de neige; toiture terasse; essai sur modèle; essai sur ouvrage réel |
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| Abstract | Scaling rules are developed for the design of experiments and choice of appropriate particles to model snow drifting on buildings in a boundary-layer wind tunnel. Several model buildings with two-level flat roofs were studied in the tunnel. The length-to-height ratios of the buildings varied from 1.0 to 10.0 and the lengths of lower roofs varied from 1.3 to 5 times the heights to the upper levels. A three- dimensional traversing mechanism holding a depth-marker was used for collecting "snow" depths after each test. Two flat- roofed building in Ottawa, Canada, were selected for comparison of wind tunnel with full-scale measurements. The discrepancy between results of full-scale and model scale testing is due in part to dissimilar running conditions: the changes in wind directions could not be followed because the model buildings were too long to be rotated fully in the wind tunnel. There are enough similarities between model and full-scale snow depths to indicate that further investigation with a larger wind tunnel would be worthwhile. |
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| Publication date | 1990-08 |
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| In | |
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| Language | English |
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| Peer reviewed | Yes |
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| Identifier | IRC-P-1689 |
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| NRC number | NRCC 32359
NRC-IRC-3568 |
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| NPARC number | 20375437 |
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| Export citation | Export as RIS |
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| Report a correction | Report a correction (opens in a new tab) |
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| Record identifier | ed70dc40-7dea-4315-a27c-09fbbc337545 |
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| Record created | 2012-07-23 |
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| Record modified | 2020-06-06 |
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