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#Cold formed steel design software free download code
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The proposed method is also assessed by reliability analysis.ĪBAQUS ( 2008) ABAQUS Standard (Version 6.12). After presenting and discussing the numerical parametric results, the article shows that the current direct strength method in the North American Specification for cold-formed steel compression members design curve fails to predict adequately the ultimate strength of some of the columns analysed and addresses the modification proposed on current direct strength method curves, providing improved predictions of all the numerical ultimate strength available. In the parametric study, the sections are analysed with several cross-sectional dimension ratios and lengths, in order to assess their influence on the buckling behaviour and ultimate strength of cold-formed steel built-up I-section columns.
The finite element model was verified against the experimental results reported in the cold-formed steel built-up open section columns. The developed model includes geometric, material nonlinearities and geometric imperfections. A finite element model is developed by using the software program ABAQUS. This work reports numerical results concerning the cold-formed steel built-up I-section columns composed of four U-profiles under axial compression.
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