Continuity effects and beam torsion

[marc.rogue]

Hello,
I am interested in finding literature or a simple way to use distribution factors or continuity effects to distribute torsion in beams along a beam line on a parking garage.

 

[r13]

Are the columns continue going up, or stop at the floor level? If it is the latter, since in a sense the beams are not restrained on top for torsion, the program simply treated them (the beams) as one long beam. Does this make sense?

 

[marc.rogue]

the columns keep going up and yes what you are saying together with Ktook makes sense. I get the columns with close decks will be more restrained from displacement and the torsion will be redistributed to the outer columns which are "stiffer". I imagine I would need to find compatibility equations and solve for a relative stiffness for all supports