Torsion in built-up shapes 1

[DHKpeWI]

Does anyone have advice for checking torsion in a built up shape constructed with rivets? Will the rivets allow the section to act compositely to resist the torsion?

 

[Lion06]

Yes, they will. You will have to verify that the load on the rivets (using a shear flow analysis at their locations) is less than the capacity.

 

[ishvaaag]

Respect the second question, my guess is that yes. Think for a moment of a segment of trussed shaft of a free standing crane, where the connections are either bolts, or, if old, rivets. This shaft is obviously designed to sustain between other forces, torsion, and the demands at the connections derived from the truss-like behaviour. If something, in a beam/box setup, the rivets are to be more and far closer, so the likelihood of what above standing for a torsion solicitation are high.

Respect how to derive the forces at the rivets (and the general effect of torsion), a complete 3D model with link-like rivets should give a numerical evaluation to what above.

 

[DHKpeWI]

ishvaaag & StructuralEIT:

Thanks for your input.