Quick question about egress stair design per ASCE 7 chapter 13, how do you apply the seismic force Fp in the model? If you create a Sap 2000 model, do you just apply that concentration force at the center of gravity of the stair? Just on a single thread? at the middle the thread or what is...
For a Penthouse designed per ASCE 7-16 Chapter 13, what structural limitations and height limits applies? Looks like Chapter 13 is silent on structural system limitations. Chapter 12 and 15 have structural system limits. Ultimately, I am trying to figure out if Ordinary Steel moment frame is...