The live loads for members supporting two or more floors are permitted to be reduced by a maximum of 20 percent but the live load shall not be less than l as calculated in section 1607 10 1.
Roof live load reductino.
R 1 1 for a t less than or equal to 200 psf r 1 1 2 0 001 a t for between 200 psf and 600 psf.
Where l r shall not be less than 12 psf and not more than 20 psf.
Roof live load may be reduced by the following equation.
Likewise roof live loads in the hong kong building regulation can be reduced as a function of the slope.
Hence the magnitude of the roof live loads should be specified as for a flat roof and the program allowed to make the reduction based on the slope of the framing.
Roof live load reduction.
1603 1 2 roof live load the roof live load used in the design shall be indicated for roof areas section 1607 13.
R 1 0 6.
L r l o r 1 r 2.
Commentary in asce 7 05 c4 about roof live load reductions explains the anticipated difference in use of roof areas vs.