Towards predicting the buckling and crushing strength of graded SA pine with high slenderness ratios
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Date
Authors
Burdzik, W.M.G.
Skorpen, Sarah Anne
Journal Title
Journal ISSN
Volume Title
Publisher
South African Institution of Civil Engineering
Abstract
There is an apparent increase in failure of timber truss web members or compression chords. This
paper seeks to reassess buckling of the compression chords with specific focus on web members.
There are two possibilities for the seemingly lower buckling strength of web members, namely
that the mean modulus of elasticity is a poor predictor of buckling strength where knots and
other local changes in stiffness are concerned, and secondly that the actual crushing strength of
the timber is lower than the design values. This paper will investigate both of these possibilities in
order to achieve a safer approach to the design of timber compression members.
Description
Keywords
Buckling strength, Crushing strength, South African pine, Slenderness ratios, Timber trussed roofs, Web members, Compression chords
Sustainable Development Goals
Citation
Burdzik W.M.G. & Skorpen S. Towards predicting the buckling and crushing strength of graded SA pine with high slenderness ratios.
Journal of the South African Institution of Civil Engineering 2020:62(1), Art. #0501, 8 pages. http://dx.DOI.org/ 10.17159/2309-8775/2020/v62n1a1.