I am designing a Stair stringer with MC 12x10.6, keeping all parameters same, results showing as failed in AISC 360-16 ASD but passing in AISC 360-10 ASD. The failure clause D1 is same in both versions.

Hello, I am new to STAAD and have ran into an issue when checking a model. The model was initially checking for ACI 360-10 so I went to the STAAD Editor and changed the code check command to 2016. This changed the utilization ratio drastically on most…