Yeah, it seems reasonable to assume that connection was designed to transfer moment since one wouldn't normally go with an eight bolt pattern otherwise.

Rigid

Looks like a bolted end plate moment connection to me. This would be considered a fully restrained moment connection. AISC has some designed guides on the subject.

I would consider that to be a fully restrained moment connection. You're right that it's identical to a standard beam to column connection, just rotated 90 degrees and the connection doesn't care about its orientation.


(The picture on the left is from AISC's Design Guide 4 - Extended End-Plate Moment Connections)

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Thanks guys. I guess I was just questioning if the beam would still effectively transfer the moment with not having the top flange also restrained (like a normal beam to column connection).

Quote (JD P.E.)

Thanks guys. I guess I was just questioning if the beam would still effectively transfer the moment with not having the top flange also restrained (like a normal beam to column connection).

The stiffeners are doing that the job here.

The moment connection doesn't know which way is up/down/left/right and it doesn't know where the moment force is coming from. If the beams/columns are the same member then the connection is analogous and symmetrical to you typical beam column moment connection.

** I said "moment force" because clearly the axial/shear forces are different per member.