Hello, I have designed a platform stair system in STAAD PRO and I am analyzing the effects of using Moment Frame and or Ordinary Frames in it. I have attached 2 models here - One pertaining to Moment Frame (With no releases in platform members) and…

Found drastic difference in moments of rcc beams with a plate modeled as brick wall partition wall in rcc frame structure...Moments are very low on beam and column... why it happens? Is it due to stiffness of plate , And what is the correct way to model…