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0 <br />Approximate Area of the Roof Plan, A := 820 ft2 <br />Risk Category: II <br />Importance Factor: <br />IS:=1.00 <br />Ii :=1.00 <br />Iw:=1.00 <br />Ie :=1.00 <br />Surface Roughness: B <br />Exposure Category: B <br />Density of Steel, <br />Area of 1 Column, <br />Mass per column per foot, <br />Total Mass of columns, <br />Table 7.3-1 <br />density := 490 pcf <br />Area:-- (10 in -10 in) — (9.5 in - 9.5 in) = 9.75 in <br />m := density • Area = 33.177 pl f <br />M:=m•(17.25 ft+10.83 ft+18 ft) =1.529 kip <br />Dead Load on roof, D := 2 psf <br />Live Load, L := 5 psf • A = 4.1 kip <br />SNOW LOAD <br />Ground Snow Load, p9:=15 psf <br />Ce := 0.9 SEC 26.7.2 <br />CT:=1.2 SEC 26.7.3 <br />Flat Roof Snow Load, p f := 0.7 • Ce • CT • IS • p9 =11.34 psf <br />Cs:=1.0 <br />ps:= CS - pf = 11. 34 psf EQN 7.4-1 <br />SS2 :=11.5 SS1:= 2.45 <br />-y:= 0.13 1 • py+ 14 pcf =15.95 pcf <br />ft <br />hb := PS — 0.711 ft <br />7 <br />hd:=1.2 ft-2 IS=1.2 ft <br />3 of 10 <br />