Exterior decking FBD - Am I overthinking the torsional action?

[AndBre44]

I posted this in the wrong forum, though I'm unsure how to fully remove it from the website; I've reposted it here:

Worries about Torsion; Framing of a Cantilever Deck - Structural engineering general discussion

Looking for some thoughts on solving a free body diagram after adding in a few variables. For context, this is a home with a cantilevering deck at the second floor that is then being placed over a full glass wall (minus some small 8" wall cavities for HSS columns for a moment frame), with a deck...

www.eng-tips.com

Apologies for the mistake.

 

[XR250]

Honestly, TLDR
Also, what is FBD? Free Body Diagram?
Also, if you are not a student, might want to post this in the General forum.

 

[AndBre44]

Honestly, TLDR
Also, what is FBD? Free Body Diagram?
Also, if you are not a student, might want to post this in the General forum.

My apologies, I didn't even realize I posted in the wrong forum; chalk it up to the new forum layout I suppose

Though yes FBD was short for free body diagram

 

[XR250]

That is not a free body diagram