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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 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 />-30.62 <br />DF-L No. 1 <br />4 j lj (ft) pd,j (lbs) pw,j (lbs) ps,j (lbs) <br />Portrait <br />1 7.8 50.9 -520 0.0 <br />12.5 50.9 -520 <br />-520 0.0 <br />4 18.9 50.9 -520 0.0 <br />0.0 <br />7.00 7.00 7.00 0.00 1.00 <br />Portrait <br />3 14.2 50.9 <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 />13.3 <br />26.7 <br />0.0 0.0 0.0 0.0 <br />0 0.0 <br />Portrait <br />0 <br />0.0 27.532 -281 0 <br />0 <br />0.0 <br />0 <br />7 <br />0 <br />0 <br />0.0 <br />Portrait <br />7 <br />0.0 <br />Portrait <br />0 0.0 0.0 <br />AT (ft2) <br />16.977 <br />9.1772 <br />pd (lbs) <br />50.93 -520 <br />pw (lbs) ps (lbs) <br />0 <br />19.73 <br />2x4 <br />1.15 1.5 <br />22.00 <br />19.73 <br />22.00 <br />1000 <br />1.50 <br />3.50 <br />124 <br />148 <br />124 <br />299 <br />167 <br />167 <br />DCR <br />0.9 1553 psi D 485 psi 0.31 <br />3.06 <br />1725 <br />CD Fb' = C D * F b ASD Load Ma / S x <br />1.15 1984 psi D+S 485 psi 0.24 OKAY <br />OKAY <br />1.25 2156 psi D+Lr 579 psi 0.27 OKAY <br />1.6 2760 psi <br />0.134 <br />627 120 <br />1700 5.36 <br />0.6D+0.6W 1172 psi 0.42 OKAY <br />1.0 1 <br />20 <br />0.00 <br />16 <br />Comp <br />0.121 <br />693 180 <br />1.6 2760 psi D+0.45W+0.75S 655 psi 0.24 OKAY <br />1.6 2760 psi D+0.45W+0.75Lr 655 psi 0.24 OKAY <br />ൌ ሺ െ ሻ െ െ െ <br />‐400.0 <br />‐300.0 <br />‐200.0 <br />‐100.0 <br />0.0 <br />100.0 <br />200.0 <br />300.0 <br />400.0 <br />0.000 5.000 10.000 15.000 20.000 25.000 <br />831 N Westwood <br />Ave06/15/23