StaadPro; I should like to determine the Response Factor to footfall for a Composite Floor - where to start?

Hello

We have to determine the Response Factor for a composite floor.

I would like to model in the composite floor and analyse using Staad Pro to determine the Modal Mass (M) so that I can use it in the equations for rms acceleration to determine the RF. Getting the maximum Kinetic Energy (KEn )  for the modes would do as the reference gives M=KEn/(2 Pi2 f02))

My reference is SCI Publication P354 "Design of Floors for Vibration: A new Approach."

I think it can be done with StaadPRO but  I find the terminology confusing and the commands obscure.

Is there a blow by blow account of how to do it?

Nick