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Beam/ Top Chord Check Lumber: <br />Moment Demand <br /># of Attachment per Rafter N A = Span : Orientation <br />Lenght (ft) : <br />Dead Load Roof Material: Q D = psf <br />Live Load QLr = psf <br />Wind Load p = psf <br />Snow Load QS = psf <br />Rafter Spacing s = in <br />Wind Load, Portrait Portrait UL = <br />Wind Load, Landscape Landscape U W = <br />Linear Dead Load wd = plf <br />Live Load wLr = plf Start ft Start ft <br />End ft End ft <br />Snow Load ws = plf Start ft Start ft <br />End ft End ft <br />Ma, Moment <br />D lb-ft <br />D+Lr lb-ft <br />D+S lb-ft <br />0.6D+0.6W lb-ft <br />D+0.45W+0.75Lr lb-ft <br />D+0.45W+0.75S lb-ft <br />Moment Capacity Framing Member Size Lumber Grade : DF-L No. 1 <br />C M = 1 Ct = 1 Cr= CF = fb = psi Cfu =C i = <br />Breadth b = in <br />Depth d = in <br />Section Modulus Sx = bd 2 / 6 = in3 <br />Bending Stress Capacity Fb = CM * C t * Cr * C F * fb = psi Table 4.3.1 NDS 2015 <br />Deflection Limit E = ksi I = in4 <br />Transient Deflection in <br />Transient Deflection Allowed > [OKAY] <br />Total Deflection in <br />Total Deflection Allowed > [OKAY] <br />-46.13 <br />DF-L No. 1 <br />4 j lj (ft) pd,j  (lbs) pw,j  (lbs) ps,j  (lbs) <br />Portrait <br />1 2.2 51.8 -797 0.0 <br />6.5 51.8 -797 <br />-797 0.0 <br />4 12.3 51.8 -797 0.0 <br />0.0 <br />6.00 6.00 0.00 0.00 1.25 <br />Portrait <br />3 8.0 51.8 <br />14.00 <br />1 2 3 4 Eave <br />2 <br />0.0 <br />0.0 0.0 0.0 <br />0.0 <br />0 0.0 0.0 0.0 0.0 <br />0 0.0 0.0 0.0 <br />0.0 <br />0 0.0 0.0 0 0.0 <br />Portrait <br />0 0.0 0.0 0 <br />0.0 <br />28 <br />40 <br />0.0 0.0 0.0 0.0 <br />0 0.0 <br />Portrait <br />0 <br />0.0 30.65 -471 0 <br />0 <br />0.0 <br />0 <br />1.5 <br />0 <br />0 <br />0.0 <br />Portrait <br />1.5 <br />0.0 <br />Portrait <br />0 0.0 0.0 <br />AT (ft2) <br />17.274 <br />10.217 <br />pd (lbs) <br />51.821 -797 <br />p w (lbs) ps (lbs) <br />0 <br />13.02 <br />2x4 <br />1.15 1.5 <br />13.25 <br />13.02 <br />13.25 <br />1000 <br />1.50 <br />3.50 <br />182 <br />187 <br />182 <br />462 <br />246 <br />246 <br />DCR <br />0.9 1553 psi D 715 psi 0.46 <br />3.06 <br />1725 <br />CD Fb' = C D * F b ASD Load Ma * S x <br />1.15 1984 psi D+S 715 psi 0.36 OKAY <br />OKAY <br />1.25 2156 psi D+Lr 731 psi 0.34 OKAY <br />1.6 2760 psi <br />0.129 <br />558 120 <br />1700 5.36 <br />0.6D+0.6W 1810 psi 0.66 OKAY <br />1.0 1 <br />20 <br />0.00 <br />24 <br />Comp <br />0.109 <br />663 180 <br />1.6 2760 psi D+0.45W+0.75S 965 psi 0.35 OKAY <br />1.6 2760 psi D+0.45W+0.75Lr 965 psi 0.35 OKAY <br />ൌ ሺ െ ሻ െ െ െ <br />‐600.0 <br />‐400.0 <br />‐200.0 <br />0.0 <br />200.0 <br />400.0 <br />600.0 <br />0.000 2.000 4.000 6.000 8.000 10.000 12.000 14.000 <br />801 E Borchard <br />Ave02/17/22