Plastic bimoment determination for cold-formed steel open sections

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2023-12
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Abstract
The warping torsion strength of cold-formed steel open sections can be much higher than first yield. Recent developments in the prediction of warping torsion bimoment strength demonstrate a dependence on the plastic bimoment magnitude. This paper explains elastic and plastic bimoment stress distributions, presents the calculation of first yield and plastic bimoment magnitudes, and provides the derivation of plastic bimoment formulas for some common shapes.
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Working paper providing methods for calculating plastic warping torsion bimoment
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