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Beam/ Top Chord Check Lumber: <br />Moment Demand <br /># of Attachment per Rafter NA = Span : Orientation <br />Lenght (ft) : <br />Dead Load Roof Material: QD = 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 UW = <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 />CM = 1 Ct = 1 Cr= CF = fb = psi C fu =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 2018 <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 />-47.03 <br />DF-L No. 1 <br />4 j lj (ft) pd,j (lbs) pw,j (lbs) ps,j (lbs) <br />Portrait <br />1 2.4 43.6 -684 0.0 <br />7.8 43.6 -684 <br />-322 0.0 <br />4 11.5 20.6 -322 0.0 <br />0.0 <br />3.45 8.00 0.00 0.00 1.00 <br />Landscape <br />3 9.4 20.6 <br />10.00 <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 />20 <br />40 <br />0.0 0.0 0.0 0.0 <br />0 0.0 <br />Portrait <br />0 <br />0.0 20.55 -322 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 (ft 2) <br />14.533 <br />6.85 <br />pd (lbs) <br />43.6 -684 <br />pw (lbs) ps (lbs) <br />0 <br />12.19 <br />2x4 <br />1.15 1.5 <br />12.45 <br />12.19 <br />12.45 <br />1000 <br />1.50 <br />3.50 <br />181 <br />183 <br />181 <br />632 <br />376 <br />376 <br />DCR <br />0.9 1553 psi D 710 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 710 psi 0.36 OKAY <br />OKAY <br />1.25 2156 psi D+Lr 715 psi 0.33 OKAY <br />1.6 2760 psi <br />0.531 <br />181 120 <br />1700 5.36 <br />0.6D+0.6W 2478 psi 0.90 OKAY <br />1.0 1 <br />20 <br />0.00 <br />24 <br />Comp <br />0.445 <br />216 180 <br />1.6 2760 psi D+0.45W+0.75S 1474 psi 0.53 OKAY <br />1.6 2760 psi D+0.45W+0.75Lr 1474 psi 0.53 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 />800.0 <br />0.000 2.000 4.000 6.000 8.000 10.000 12.000 14.000 <br />2410 W Lori Ln #2 <br />09/05/23