Compact Tubulars in Bending
Compact Tubulars in Bending
(OP)
Hi
Got a quick one !
If I have a simply supported Tubular Member supported at the ends and simply loaded in the middle, no end compressive loads (CHS is totally compact with od 355 and wt 16) do I need to look at Buckling as well as Bending ?
My argument is that if its Compact then there is no need to analyse Buckling (as with I Beams) but am I correct ?
thanks
Got a quick one !
If I have a simply supported Tubular Member supported at the ends and simply loaded in the middle, no end compressive loads (CHS is totally compact with od 355 and wt 16) do I need to look at Buckling as well as Bending ?
My argument is that if its Compact then there is no need to analyse Buckling (as with I Beams) but am I correct ?
thanks






RE: Compact Tubulars in Bending
While it's unusual, high aspect ratio tubes can laterally torsionally buckle and some thought should be given to evaluating that.
At the supports, you've got web crippling and yielding to deal with as you would with a wide flange. Again, with two webs and thick-ish walls, it's unlikely to be a problem but compactness alone doesn't guarantee that. Compactness is about the sections ability to resist longitudinal compression stresses without buckling locally. The stresses here are really transverse.
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: Compact Tubulars in Bending
RE: Compact Tubulars in Bending
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: Compact Tubulars in Bending
The Design is an 'A' Frame for deploying equipment over the side of a vessel which is just suspended in the middle of the CHS. The ends of the CHS are essentially free to rotate.
RE: Compact Tubulars in Bending
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: Compact Tubulars in Bending
RE: Compact Tubulars in Bending
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: Compact Tubulars in Bending
RE: Compact Tubulars in Bending
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: Compact Tubulars in Bending
RE: Compact Tubulars in Bending
RE: Compact Tubulars in Bending
Same principles ?
RE: Compact Tubulars in Bending
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.