The usual procedure, at least for European floor vibration guides, is to use 10% of the live load in the modal and response calculations. The thinking behind this is that when there is no live load there is no one to worry about the vibration (stairs and the like are an exception to this) and...
The floor is big for a house but is reasonably small compared to an office, so I am not too surprised that there is the potential for a vibration problem. Domestic loads are also lighter than for offices and mass is the main resistance to human induced vibrations.
What is the floor’s...
There are two more design guides that we use for footfall vibration:
1) the Concrete Centre's "A Design Guide for Footfall Induced Vibration of Structures" CCIP-016, published in 2007
2) the Steel Construction Institute's "Design of Floors for Vibration: A New Approach" P354, updated in 2009...
