Proposed Code Provisions for Drifted Snow Loads
Publication: Journal of Structural Engineering
Volume 112, Issue 9
Abstract
Current code provisions for drift snow loads on multilevel roofs are examined in light of recent research results from a statistical study of approximately 350 drift load case histories. New provisions are proposed in which the design drift load is a function of the length of the upper‐level roof and the 50‐yr mean recurrence interval ground snow load. It is felt that these new proposed provisions result in a design drift load with a mean recurrence interval of about 50 yrs.
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References
1.
American National Standards Institute (1982). “American National Standard Minimum Design Loads for Buildings and Other Structures.” ANSI A59.1‐1982, New York, N.Y.
2.
Metal Building Manufacturers Association (1981). “Metal Building Systems Manual.” Cleveland, Ohio, 1981.
3.
National Research Council of Canada (1985). “Canadian Structural Design Manual.” Supplement No. 4 to the National Building Code of Canada, Ottawa, 1985.
4.
O'Rourke, M., Redfield, R., and von Bradsky, P. (1982). “Uniform Snow Loads on Structures.” Journal of Structural Engineering, ASCE, Vol. 108, No. 12, Dec., pp. 2781–2798.
5.
O'Rourke, M., Speck, R., and Stiefel, U. (1985). “Drift Snow Loads on Multilevel Roofs.” Journal of Structural Engineering, ASCE, Vol. 111, No. 2, Feb., pp. 290–306.
6.
Reidy Engineers (1978). “The Blizzard, February 6–7, 1978, Evaluation of Snowdrift Loads on the Roof.” Boston, Mass.
7.
Speck, R., Jr., “Analysis of Snow Loads Due to Drifting on Multilevel Roofs,” thesis, presented to the Department of Civil Engineering, at Rensselaer Polytechnic Institute, Troy, N.Y., in 1984, in partial fulfillment of the requirements for the degree of Master of Science.
Information & Authors
Information
Published In
Journal of Structural Engineering
Volume 112 • Issue 9 • September 1986
Pages: 2080 - 2092
Copyright
Copyright © 1986 ASCE.
History
Published online: Sep 1, 1986
Published in print: Sep 1986
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