curved column design verifications
curved column design verifications
(OP)
Hi!
I need to design a curved column, sth like you can see in the attachment. What verifications do I need to do? I am thinking to obtain the stresses at the base, and verify the section..
What else should I check for such an element?
It's a 3 meters high column with not much load on it (a bus stop kind of structure) What checks would you do? Also any codes that I can refer?
Thanks
I need to design a curved column, sth like you can see in the attachment. What verifications do I need to do? I am thinking to obtain the stresses at the base, and verify the section..
What else should I check for such an element?
It's a 3 meters high column with not much load on it (a bus stop kind of structure) What checks would you do? Also any codes that I can refer?
Thanks






RE: curved column design verifications
RE: curved column design verifications
1) Make sure you run a 2nd order analysis to capture the elastic buckling effects directly in the analysis.
2) Better yet, use reduced stiffness in your 2nd order analysis as a means of accounting for in-elastic buckling.
3) Add in some assumed member imperfections or notional loads. This will help the 2nd order analysis to capture the buckling effect during the analysis.
Essentially, all I'm really saying is to use the AISC Direct Analysis Method.
4) I'd be conservative and use an unbraced length for my member capacity calculations which was equal to the full curved length of the member. Whether I used a K=1 or a K = 2.1 would depend on how conservative I want to be. If I follow all the rest of the AISC direct analysis method provisions, I should be able to get away with a K = 1.0. However, if I'm starting to doubt the apprropriateness of the DA Method for this type of structure, then I'd probably up the K a bit.... when in doubt, make it stout.
RE: curved column design verifications
RE: curved column design verifications