Research Article
May 1982
Buckling of Pretwisted Columns
Publication: Journal of the Structural Division
Volume 108, Issue 5
Abstract
The effect of pretwist on the buckling load of column is presanted. A finite element formulation is developed for the stability analysis of pretwisted columns. Numerical examples are used on pretwisted columns and other related types of columns to demonstrate the finite element model. In all cases, good convergence is observed and satisfactory accuracy is obtained by using few elements, and the required computational effort is found to be minimal. Experimental results are presented for the buckling loads and the associated buckling modes by varying the angles of pretwist. Good agreement between the predicted values and the experimental results is observed. Finite element solutions, of critical loads of pretwisted columns are presented in tabular form and also graphically for various angles of pretwist and different ratios of principal moment of inertia.
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Published In
Journal of the Structural Division
Volume 108 • Issue 5 • May 1982
Pages: 1124 - 1139
Copyright
© 1982 American Society of Civil Engineers.
History
Published in print: May 1982
Published online: Feb 1, 2021
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Authors
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Negussie Tebedge
Assoc. Prof. of Civ. Engr., Addis Ababa Univ., Addis Ababa, Ethiopia
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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.