Research Article
Nov 1970
Design of Wood Columns for Flexural and Axial Loading
Publication: Journal of the Structural Division
Volume 96, Issue 11
Abstract
Present design practice of wood columns is reviewed. The derivation of the design expression adopted by National Design Specifications for wood structures is given and its limitations and range of applications are analyzed. Two methods of design are given: (1) Hand calculations, which is based on successive approximations; (2) a general computer program, for which the coding is also given. The latter renders all possible solutions in stress graded lumber of laminated wood for a given case. The sections are listed in ascending order of cost, least weight sections being listed first. The design of braced and unbraced columns with various end restraints is examined using the concept of effective length to determine actual slenderness. Present design practice renders conservative results for braced columns. However, in the case of unbraced columns, unless the actual slenderness is used, unsafe sections may result. Therefore, adoption of design provisions calling for use of actual slenderness and a minimum eccentricity of the load about both axes of bending are strongly recommended.
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Information
Published In
Journal of the Structural Division
Volume 96 • Issue 11 • November 1970
Pages: 2389 - 2408
Copyright
© 1970 American Society of Civil Engineers.
History
Published in print: Nov 1970
Published online: Feb 1, 2021
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Authors
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German Gurfinkel, M.ASCE
Assoc. Prof. of Civ. Engrg., Univ. of Illinois, Urbana, Ill.
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ASCE Library Cards let you download journal articles, proceedings papers, and available book chapters across the entire ASCE Library platform. ASCE Library Cards remain active for 24 months or until all downloads are used. Note: This content will be debited as one download at time of checkout.
Terms of Use: ASCE Library Cards are for individual, personal use only. Reselling, republishing, or forwarding the materials to libraries or reading rooms is prohibited.
Terms of Use: ASCE Library Cards are for individual, personal use only. Reselling, republishing, or forwarding the materials to libraries or reading rooms is prohibited.