Steel Beam to residential exterior wall connection

[Brobocop]

Looking for clarity on a long span wide flange beam connection to a wood frame exterior wall with a flush ceiling finish (attached very professional sketch lol). Beam will need to rest above the wall top plates. FYI, there will be truss joists 16" O.C. framing into the beam laterally.

Is there a best practice connection here? I thought to maybe lag bolt the bottom flange into the top wall plate on either side of web?

Also, is there a target TL deflection limit y'all like to use? I've seen L/600 for LL, but maybe L/460 or L/500 for TL?

I appreciate the help.

 

[BAretired]

I would prefer a steel post supporting the steel beam, but it can be done either way.
The contractor might prefer a timber beam which he can install when he is ready.
Deflection limits are specified in the code...usually L/360 for live load and L/240 for total load.

 

[Tomfh]

Yes fix it to the top plate. Make sure your nailing plate is properly bolted to the beam too, and joists likewise fastened to the plate. That way the whole floor plate including beam is locked together.

 

[Brobocop]

I would prefer a steel post supporting the steel beam, but it can be done either way.
The contractor might prefer a timber beam which he can install when he is ready.
Deflection limits are specified in the code...usually L/360 for live load and L/240 for total load.

My only issue is one of the two beams is 21'. If I do L/240 for total load, that's 1.05"... I assume there would be a noticeable sag or "bulge" in the center of the ceiling. I'm trying to tighten up my tolerance, so there is minimal deflection for the drywall.

 

[Brobocop]

Yes fix it to the top plate. Make sure your nailing plate is properly bolted to the beam too, and joists likewise fastened to the plate. That way the whole floor plate including beam is locked together.

Perfect. Thanks.