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52 <br /> F-1 <br /> WQOdWOrkS® SiZer SOFTWARE FOR WOOD DESIGN <br /> 2_7b Built-up Beam WoodWorks®Sizer 2019 (Update 4) Page 2 <br /> Analysis vs. Allowable Stress and Deflection using NDS 2018 : <br /> Criterion Analysis Value Design Value Unit Analysis/Design <br /> Shear fv = 72 Fv' = 310 psi fv/Fv' = 0.23 <br /> Bending(+) fb = 2009 Fb' = 2325 psi fb/Fb' = 0.86 <br /> Dead Defl'n 0.13 = < L/999 <br /> Live Defl'n 0.45 = L/382 0.48 = L/360 in 0.94 <br /> Total Defl'n 1 0.59 = L/297 1 0.73 = L/240 I in 0.81 <br /> Additional Data: <br /> FACTORS: F/E(psi) CD CM Ct CL CV Cfu Cr Cfrt Ci LC# <br /> Fv' 310 1.00 - 1.00 - - - - 1.00 - 2 <br /> Fb'+ 2325 1.00 - 1.00 1.000 1.000 - 1.00 1.00 - 2 <br /> Fcp' 2050 - - 1.00 - - - -- 1.00 - <br /> E' 1.5 million - 1.00 - - - - 1 .00 - 2 <br /> Eminy' 0.80 million - 1.00 - - - 1.00 - 2 <br /> CRITICAL LOAD COMBINATIONS: <br /> Shear : LC #2 = D + L <br /> Bending(+) : LC #2 = D + L <br /> Deflection: LC #2 = D + L (live) <br /> LC #2 = D + L (total) <br /> Bearing Support 1 - LC #2 = D + L <br /> Support 2 - LC 42 = D + L <br /> D=dead L=live <br /> All LC's are listed in the Analysis output <br /> Load combinations: ASD Basic from ASCE 7-16 2.4 / IBC 2018 1605.3.1 <br /> CALCULATIONS: <br /> V max = 1655, V design = 1606 lbs; M(+) = 8816 lbs-ft <br /> EIy = 387.60 lb-in^2 Apparent E approximates the effect of shear deflection. <br /> "Live" deflection is due to all non-dead loads (live, wind, snow...) <br /> Total deflection = 0.5 dead + "live" <br /> Design Notes: <br /> 1. Analysis and design are in accordance with the ICC International Building Code (IBC 2018) and the National Design <br /> Specification (NDS 2018), using Allowable Stress Design (ASD). Design values are from the NDS Supplement. <br /> 2. Please verify that the default deflection limits are appropriate for your application. <br /> 3. FIRE RATING: LVL, PSL and LSL are not rated for fire endurance. <br /> 4. SCL: Structural composite lumber design has assumed:-dry service conditions - no preservative or fire-retardant <br /> treatment- no notches <br /> 5. SCL: Deflection is calculated using an apparent modulus of elasticity E that incorporates the effect of shear deflection. <br />