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Check Top Chord of Existing Truss Oct. 10, 2022 15:04 Design Check Calculation Sheet WoodWorks Sizer 2019 (Update 4) Loads: Load Type Distribution Pat- Location [ft] Magnitude Unit tern Start End Start End Roof-DL Dead Full Area No 10.00(24.0") psf Roof-LLR Roof constr. Full Area Yes 20.00(24.0") psf PV1 Dead Point No 3.00 32 lbs PV2 Dead Point No 8.00 32 lbs PV3 Dead Point No 9.50 32 lbs PV4 Dead Point No 14.50 32 lbs Self-weight Dead Full UDL No 1.2 plf Maximum Reactions (lbs) and Bearing Lengths (in) : 2.333' 9.333' 17.638' 16.333'0' Unfactored: Dead 156 261 85 Roof Live 235 340 129 Factored: Total 391 601 214 Bearing: Length 0.50* 0.51 0.50* Min req'd 0.50* 0.51** 0.50* *Minimum bearing length setting used: 1/2" for end supports and 1/2" for interior supports **Minimum bearing length governed by the required width of the supporting member. Lumber-soft, D.Fir-L, No.2, 2x4 (1-1/2"x3-1/2") Supports: All - Timber-soft Beam, D.Fir-L No.2 Roof joist spaced at 24.0" c/c; Total length: 17.75'; Clear span(horz): 2.313', 6.938', 6.938'; Volume = 0.6 cu.ft.; Slope: 22.0 deg Lateral support: top = continuous, bottom = at all supports; Repetitive factor: applied where permitted (refer to online help); This section PASSES the design code check. Analysis vs. Allowable Stress and Deflection using NDS 2018 : Criterion Analysis Value Design Value Unit Analysis/Design Shear fv* = 78 Fv' = 225 psi fv*/Fv' = 0.35 Bending(+) fb = 1193 Fb' = 1941 psi fb/Fb' = 0.61 Bending(-) fb = 1594 Fb' = 1819 psi fb/Fb' = 0.88 Deflection: Interior Dead 0.10 = L/937 Live 0.22 = L/403 0.38 = L/240 in 0.60 Total 0.32 = L/281 0.50 = L/180 in 0.64 Cantil. Dead -0.03 = < L/999 Live -0.23 = L/128 0.25 = L/120 in 0.93 Total -0.26 = L/115 0.34 = L/90 in 0.78 *The effect of point loads within a distance d of the support has been included as per NDS 3.4.3.1 2001 S Sycamore St12/07/22