Braced Frame Connection (Gusset to HSS Column)
Braced Frame Connection (Gusset to HSS Column)
(OP)
Hello,
1. I have a SCBF connection and I'm trying to design the gusset-to-column connection. In watching a couple of seminars, I realized that the Uniform Force Method is not recommended for HSS columns as the column horizontal force might be too large for the HSS wall. In using the KISS method I come up with a very large (and long) gusset plate-to-column weld. So I started thinking again in the UFM. How can I actually check a concentrated load on an HSS wall? Does anyone have a design example for this?
2. Is it possible to have a drag strut-to-column connection through a single shear tab? What are the limit states for this connection?
Thanks!
1. I have a SCBF connection and I'm trying to design the gusset-to-column connection. In watching a couple of seminars, I realized that the Uniform Force Method is not recommended for HSS columns as the column horizontal force might be too large for the HSS wall. In using the KISS method I come up with a very large (and long) gusset plate-to-column weld. So I started thinking again in the UFM. How can I actually check a concentrated load on an HSS wall? Does anyone have a design example for this?
2. Is it possible to have a drag strut-to-column connection through a single shear tab? What are the limit states for this connection?
Thanks!






RE: Braced Frame Connection (Gusset to HSS Column)
I typically design drag strut connections through a single shear tab. It's all the usual connection limit states, just with an added axial seismic component to the load on the connection. Your single plate connection is then part of the SLRS, which has specific welding and bolting requirements.
Both of these are usually a toss up on whether or not the face of the HSS will work. The gusset connection is more likely to work (longer connection, thicker walls typically), although I have seen some firms that always knife their plates through an HSS column, whether or not the chapter K limit states check out for a face connection.
RE: Braced Frame Connection (Gusset to HSS Column)
RE: Braced Frame Connection (Gusset to HSS Column)
RE: Braced Frame Connection (Gusset to HSS Column)
thanks
EIT
www.HowToEngineer.com
RE: Braced Frame Connection (Gusset to HSS Column)
RE: Braced Frame Connection (Gusset to HSS Column)
RE: Braced Frame Connection (Gusset to HSS Column)
Also for those who recommend the through plate - Aren't the forces still transferred to the column wall; it's just now transferred to the front and back face?.
Thanks! (don't me to hijack the thread here...)
EIT
www.HowToEngineer.com
RE: Braced Frame Connection (Gusset to HSS Column)