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Moment Connection: WF Column & HSS Beam

Moment Connection: WF Column & HSS Beam

(OP)
I've been looking at different schemes to do a moment connection between a WF column to HSS rect/square beam (both sides of column). A bit of odd case here. It will be treated as a OMF (not a pre-qual connection). I'm trying to solicit some ideas as all I can come up with is using a welded plate to top/bottom continuity plates. Any advice/suggestions?

RE: Moment Connection: WF Column & HSS Beam

Can a stiffened end plate connection with shims work? The shims are to allow the connection a little 'wiggle room' for installation.

Dik

RE: Moment Connection: WF Column & HSS Beam

Bolted End Plate moment connection. Looks exactly the same as a wide flange beam running over an HSS column with a cap plate.... just rotated 90 degrees.

Not pre-qualified, of course. But, for an OMF that shouldn't be a problem.

RE: Moment Connection: WF Column & HSS Beam

You may also want to consider overframing the beam over the column, similar to what Josh alluded to. In essence, a single story column at every floor. Do use stiffeners and checks to ensure that the column is braced through the beam to the diaphragm.

RE: Moment Connection: WF Column & HSS Beam

I thought you might appreciate some details for the common configurations. They're mostly just the concepts mentioned above by my cohorts. Obviously, some details are more expensive than others and your choice will be dictated by requirements for aesthetics, flexural capacity, and joint stiffness.








I like to debate structural engineering theory -- a lot. If I challenge you on something, know that I'm doing so because I respect your opinion enough to either change it or adopt it.

RE: Moment Connection: WF Column & HSS Beam

(OP)
Appreciate providing the details. I think the first one with end plate might work for me...

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