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Finite element analysis and design of fixed-ended plain channel columns

✍ Scribed by Ben Young; Jintang Yan

Publisher
Elsevier Science
Year
2002
Tongue
English
Weight
310 KB
Volume
38
Category
Article
ISSN
0168-874X

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✦ Synopsis

A ÿnite element analysis and design of ÿxed-ended cold-formed plain channel columns is presented in this paper. A non-linear ÿnite element model is developed and veriÿed against experimental results. Geometric and material non-linearities were included in the ÿnite element model. A sensitivity analysis on geometric imperfections of the plain channel columns was performed. It was shown that the ÿnite element model closely predicted the ultimate loads and failure modes of the tested columns. Hence, the model was used for an extensive parametric study of cross-section geometries. The column strengths predicted by the ÿnite element analysis are compared with the design column strengths calculated using the Australian=New Zealand, American and European speciÿcations for cold-formed steel structures. It is shown that the design strengths calculated from the three speciÿcations are generally conservative for ÿxed-ended plain channel columns.

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