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Modeling wind effects on drifting

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Abstract
This paper, presented at CRRELs First International Conference on Snow Engineering, addresses the evaluation of structural loads due to drifted snow on a multi-level roof. Thirty five case histories of large drifts on multilevel roofs are used in developing an empirical relation to predicting drift size. The empirical relationship is the result of multiple regression analysis involving pertinent roof geometry parameters as well as environmental factors. The environmental factors considered are snow fall, wind speed and wind direction. The combination of wind and snow fall is an attempt to characterize blizzard intensity. The authors feel that the empirical relationship presetned herein is an improvement over previous relationships in that wind in general and blizzard intensity in particular are included in the model.
Date
7/1988
Author(s)
M O'Rourke; I Galanakis
Page(s)
178-190
Keyword(s)
wind effect; structural load; drifted snow


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