Torsional properties of built-up section
Torsional properties of built-up section
(OP)
Hello,
I just wanted to see if any of you have a good reference for calculating the effective radius of gyration and the torsion properties of a built-up section (Cw, J, rts). The built-up section is composed of two wide flange beams on top of each other, connected with a continuous plate. I have a pretty big unbraced length, so I'm having to calculate LTB in the elastic range. I seem to find that rts has a big effect in decreasing the moment capacity.
Anything will help.
Thanks.
I just wanted to see if any of you have a good reference for calculating the effective radius of gyration and the torsion properties of a built-up section (Cw, J, rts). The built-up section is composed of two wide flange beams on top of each other, connected with a continuous plate. I have a pretty big unbraced length, so I'm having to calculate LTB in the elastic range. I seem to find that rts has a big effect in decreasing the moment capacity.
Anything will help.
Thanks.






RE: Torsional properties of built-up section
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.