Built‐Up Wood Columns
Publication: Journal of Structural Engineering
Volume 113, Issue 1
Abstract
Current design rules for wood columns are reviewed, and a linear elastic analysis of pin‐ended built‐up columns with timber connectors concentrated near the ends is presented. The analysis shows how stresses, deflections, and buckling loads depend on individual member properties, joint stiffnesses, overall geometry, and how the load is applied. Particular results are presented for a column made from two pieces of lumber joined together at the ends with nails and with the axial load all applied to one piece of lumber. Spaced columns are also covered, and a conclusion is that current design rules are very conservative with long‐spaced columns with nailed joints requiring 10% of the joint capacities specified by the National Design Specification for Wood Construction.
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References
1.
Hunt, R. D., “Lateral Loads on Nailed Joints,” Report No. 393, Department of Civil Engineering, University of Auckland, Auckland, New Zeland, 1986.
2.
Johnston, B. G., “Spaced Steel Columns,” Journal of the Structural Division, ASCE, Vol. 97, No. ST5, May, 1971, pp. 1465–1479.
3.
National Design Specification for Wood Construction, 1982 ed., National Forest Products Association, Washington, D.C., 1982.
4.
“Structural Use of Timber,” C.P. 112: Part 2: 1971, British Standards Institution, London, England, 1971.
5.
“Use of Timber in Structures,” AS 1720–1975, Standards Association of Australia, Sydney, Australia, 1975.
6.
“Wood Handbook: Wood as an Engineering Material,” USDA Agriculture Handbook No. 72, U.S. Forest Products Laboratory, U.S. Government Printing Office, Washington, D.C., 1974, pp. 7‐2 to 7–8.
Information & Authors
Information
Published In
Journal of Structural Engineering
Volume 113 • Issue 1 • January 1987
Pages: 107 - 121
Copyright
Copyright © 1987 ASCE.
History
Published online: Jan 1, 1987
Published in print: Jan 1987
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