Torsion in I-Beam and Channels
Torsion in I-Beam and Channels
(OP)
Does anybody have a good method for finding the torsional strength and stresses in I-beams and channels? I looked through the AISC design guide, but their process seems too cumbersome and time consuming for easy use. If that is the only way to do it then so be it, but if there is a simpler way out there I'd love to know about it.






RE: Torsion in I-Beam and Channels
The greatest trick that bond stress ever pulled was convincing the world it didn't exist.
RE: Torsion in I-Beam and Channels
Refer to figure 4.4 and section 4.1.4 (approximate shear and normal stresses due to warping on I shapes).
What I really like about this method is that it gives the engineer a physical sense of what these warping stresses are and why they develop. You can also extend this concept out to more complex situations (unusual loading, partial restraint, et cetera) with relative ease. Whereas the rigorous procedure can really only handle perfectly pinned or perfectly fixed end restraints.
RE: Torsion in I-Beam and Channels
RE: Torsion in I-Beam and Channels
Cheers
Greg Locock
New here? Try reading these, they might help FAQ731-376: Eng-Tips.com Forum Policies http://eng-tips.com/market.cfm?
RE: Torsion in I-Beam and Channels
The greatest trick that bond stress ever pulled was convincing the world it didn't exist.
RE: Torsion in I-Beam and Channels
Cheers
Greg Locock
New here? Try reading these, they might help FAQ731-376: Eng-Tips.com Forum Policies http://eng-tips.com/market.cfm?
RE: Torsion in I-Beam and Channels
The greatest trick that bond stress ever pulled was convincing the world it didn't exist.