Tube steel tee connection

[vmirat]

I have an HSS 10x10 beam sitting on top of several HSS 10x10 columns, forming multiple tee connections. I'm thinking I should check local buckling of the tube steel beam webs as a result of the concentrated load from the column. I was going to use Section J10 of the steel manual but this seems to be focused on wide flange sections, not HSS. Does this section work for HSS?

Just for clarification, the top of the column will have a bearing plate that connects to a plate welded to the bottom side of the beam and is intended to be a pinned connection (the column acts as an inverted pendulum).

 

[dik]

Can you make the columns slightly smaller... helps with the welded connection... sort of 8x8 with a 9-1/2x9-1/2 cap plate going to a 10" beam width... or something of that ilk?

Dik

 

[frv]

For concentrated loads on HSS, look at Chapter K, not J10. There is a lot of helpful information in the commentary as well.

 

[vmirat]

dik, this is what the architect wants. The sizes of the beams and columns are actually oversized from a structural standpoint.

frv, I think you're right. After I posted this, I went back and looked at that section. I haven't had a reason to use Chapter K until now.

 

[BAretired]

Provide a sketch.

BA

 

[vmirat]

BA,
The connection is pretty simple. Horizontal HSS 10x10x1/4 sitting on top of an HSS 10x10x1/4 column forming a tee. I found the appropriate reference in the steel manual under Chapter K and there's no problem. But thanks for your interest.

 

[BAretired]

vmirat,

The part I don't understand is this: Just for clarification, the top of the column will have a bearing plate that connects to a plate welded to the bottom side of the beam and is intended to be a pinned connection (the column acts as an inverted pendulum).

Not sure how you can have a pinned connection if you weld the two plates together.

I don't have Chapter K because I don't use the same steel manual, but the book "Hollow Structural Section Connections and Trusses" by J. A. Packer and J.E. Henderson is an excellent reference for connections of this type.

BA