steel beam flange - Von Misses control?
steel beam flange - Von Misses control?
(OP)
Hi guys. I have a steel beam that is loaded with distributed load + concentrated - point loads at the bottom flange.
So in bottom flange there will be stresses from bending of the beam because of distributed load (qd) + thre will be stress perpendicular to that because of point load acting on the edge of a bottom flange. I was thinking about using Von Misses criteria for this. The problem is it has been ages since I have used this. I forgot a lot. is it allrigt to use 'plane' equation for this and Gyy as G1 and Gxx as G2?

So in bottom flange there will be stresses from bending of the beam because of distributed load (qd) + thre will be stress perpendicular to that because of point load acting on the edge of a bottom flange. I was thinking about using Von Misses criteria for this. The problem is it has been ages since I have used this. I forgot a lot. is it allrigt to use 'plane' equation for this and Gyy as G1 and Gxx as G2?







RE: steel beam flange - Von Misses control?
RE: steel beam flange - Von Misses control?
I like to debate structural engineering theory -- a lot. If I challenge you on something, know that I'm doing so because I respect your opinion enough to either change it or adopt it.
RE: steel beam flange - Von Misses control?
Dik
RE: steel beam flange - Von Misses control?
Also, the flange bending equations for crane wheels would be where I would start; CMAA 74.
Professional Engineer (ME, NH, MA) Structural Engineer (IL)
American Concrete Industries
https://www.facebook.com/AmericanConcrete/
RE: steel beam flange - Von Misses control?
TME... the spreadsheet has this info...
Dik
RE: steel beam flange - Von Misses control?
Why? Seems to me like this would be solved using code applicable equations for bending, (local) flange bending, and torsion. Von Misses won't begin to deal with the LTB situation or the resulting warping.
RE: steel beam flange - Von Misses control?
dik and Kootk, tnx. Will look up what you posted.
RE: steel beam flange - Von Misses control?
Professional Engineer (ME, NH, MA) Structural Engineer (IL)
American Concrete Industries
https://www.facebook.com/AmericanConcrete/
RE: steel beam flange - Von Misses control?
Dik
RE: steel beam flange - Von Misses control?
Just seems like there are faster ways to address it. If you want to be sure you've accounted for the combined stresses (as per Von Misses)......you can always just add up the utilization ratios.
RE: steel beam flange - Von Misses control?
Von Mises, not Von Misses.
Have you considered the torsion applied by the eccentric loads F?
BA
RE: steel beam flange - Von Misses control?
Dik