Floor Live Load Reduction
Floor Live Load Reduction
(OP)
According to UBC 97', floor live loads may be reduced by R=0.08(A-150)for members supporting 150ft^2 or more in area and meeting other general criteria. However, I interpret SBC 97' as floor live loads may be reduced by R=0.08*A for area> 150ft^2 with most all other general stipulations being the same as stated by UBC but without subtracting the 150 from the total area supported. Is this the way others are applying the reduction when using SBC or do you think they mean R=0.08(A-150) as in UBC?






RE: Floor Live Load Reduction
It does say "per sq ft of the area supported" and there is no reference to A-150.
The IBC 2000 maintains the UBC method (A-150).
RE: Floor Live Load Reduction
RE: Floor Live Load Reduction
I forgot to mention that the SBC 91 through 94 codes have the same language. This creates a less conservative live load which you MAY use, but if you desire, use the more conservative approach (A-150) and you'll still meet the SBC min. requirements.
RE: Floor Live Load Reduction
I live in San Francisco and I am buildinga rectangular deck (one story up) of approx. 77.40 s.ft.
I have run across a problem?
What is live load? deck____ stairs____
What is static load? deck____ stairs____
How do I calculate this?
RE: Floor Live Load Reduction