JKJohn
Structural
- Oct 27, 2008
- 49
What are the bases that the IBC/ASCE uses to determine the live load on structures?
For example, the live load for an Assembly area with movable seats is 100 psf. The IBC requires the Occupant Load to not exceed one occupant per 5 square feet. Assuming the average person weight to be 250 lbs and each chair to be around 10 lbs, this makes 260 lbs per occupant. Divide that over 5 square feet and you will get 52 psf. Shouldn't this be the live load? Obviously the IBC has a different criteria/formula. Does anyone know the basis for the IBC to get the 100 psf?
For example, the live load for an Assembly area with movable seats is 100 psf. The IBC requires the Occupant Load to not exceed one occupant per 5 square feet. Assuming the average person weight to be 250 lbs and each chair to be around 10 lbs, this makes 260 lbs per occupant. Divide that over 5 square feet and you will get 52 psf. Shouldn't this be the live load? Obviously the IBC has a different criteria/formula. Does anyone know the basis for the IBC to get the 100 psf?