Buckling of multiple stacked columns 1

[jmccalip]

I have multiple steel tubes with flanged ends, all bolted together. How do I analyze 2 or 3 of these in buckling? What process do I take? I am kinda lost...any help?

Thank you!

 

[JedClampett]

You're probably better off in the Structural Engineering Other Topics (forum507) section. But I've always been taught that the flanges are just as strong or stronger than the pipe, So I would just take the total length and check against the pipe section properties.