Wrap Around Gusset

[Don_Bill]

how does the brace force of 15 kips +/- will get transferred in this connection?

Please tell about the checks that you have to consider? What about the clip angle that is connected on the flange of the beam? Do we have to resolve brace forces?

 

[phamENG]

Do you have a Steel Construction Manual from AISC? Start by reviewing Part 13 - Design of Bracing Connections and Truss Connections. Your situation isn't explicitly shown, but at first glance I think you can use many of the Uniform Force Method analysis rules.

 

[Don_Bill]

Thanks Pham..,,,I looked at it already.....just wanted to know the exact scenario.....,,where i will get some clarity to proceed

 

[WinelandV]

Can you adjust the work point so that it's on the flange of the column? Yes, you'd be introducing some torsion into the column, but that's a quick rigid link in the model (letting the analysis program do the heavy lifting there).

As this stands, what is reacting the brace force that is perpendicular to the HSS6x6 beam? Is it just strong axis shear of the column? Or is there a beam that we're not being shown?

 

[DrZoidberWoop]

I don't know of a cookie cutter approach to this, but here's what I'd do as a first pass/sanity check:

1) The brace load gets transferred by shear between the 3 individual bolt groups. Sum the X&Y forces in the horizontal plane to get the resultants at each bolt group centerpoint.
2) Design the brace-to-gusset connection as usual, allowing for a conservative unbraced gusset length so the Whitmore consideration doesn't tend toward a buckling limit state.
3) Use the resultant forces at the bolt groups and design the angles for shear and axial forces.
4) If you really want to check the strength of the offset gusset "leg," reference the assumptions and equations in the AISC Engineering Journal, 3rd Qtr, 2017, titled,"Design of Wrap-Around Gusset Plates." You can use their checks to justify gusset shear/flexural stresses and lateral-torsional buckling.

Also, please don't put bolts for a shear tab inside the column web unless you know you can get a gun on them. Doesn't look like it here.