How can I calculate the lateral torsional buckling of cruciform-shape steel?

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David Flores Vidriales

thank you very much i´ll look in to it!!!!

great answer

Ian Macphedran

These aren't simple cruciforms - they are crossed "I" shapes, and warping effects may come into play. It is certainly not a common shape for beams. What is the specific application you're using it for?

If IMCA is providing geometric information on these, they might also have some design guidance for you.

http://www.imca.org.mx/IMCA/Contacto.html