Abstract
This work presents a theoretical and numerical study on the influence of perforations on the behavior and strength of cold‐formed steel columns subjected to compression. Members of different cross‐sections and perforations were evaluated numerically via ANSYS and GBTul, with emphasis on distortional buckling mode. The ultimate loads of the numerical analysis were compared to the Direct Strength Method (DSM) equations of ABNT NBR 14762:2010. Finally, changes were proposed in the DSM equations so it is possible calculate the predicted compressive strengths of columns with perforated cross‐sections studied.
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