Laserfiche WebLink
I <br /> COMPANY PROJECT <br /> CG Engineering <br /> 250 4th Ave S.STE 200 <br /> Edmonds,WA 98020 <br /> i ll 1Vood\AIorks Oct 1,2021 10:04 <br /> sot'71NAREPOR wooDpFmom Stair to New Upper Landing Beam <br /> Design Check Calculation Sheet <br /> WoodWorks Sizer 2019(Update 3) <br /> Loads: <br /> Load Type Distribution Pat- Location [ft] Magnitude Unit <br /> 111 <br /> tern Start End Start End <br /> Loadl Dead Full UDL 30.0 plf <br /> Load2 Live Full UDL 200.0 plf <br /> Load3 Dead Point 7.64 900 lbs <br /> Load4 Snow Point 7.64 930 lbs <br /> Loads Dead Point 11.70 520 lbs <br /> Load6 Live Point 11.70 1210 lbs <br /> IIILoad7 Dead Point 15.35 520 lbs <br /> Loads Live Point 15.35 1210 lbs <br /> Self-weight Dead Full UDL 14.2 elf <br /> Maximum Reactions(Ibs),Bearing Capacities(Ibs)and Bearing Lengths(in): <br /> i t <br /> 15.782' f <br /> 00. 16. <br /> Unfactored: <br /> Dead 694 1440 <br /> Live 1903 3673 <br /> Snow 478 452 <br /> Factored: <br /> Total 2598 <br /> 5113 <br /> Bearing: <br /> Capacity <br /> Beam 2598 5113 <br /> Support 3389 6670 <br /> Des ratio <br /> Beam 1.00 1.00 <br /> Support 0.77 <br /> 0.77 <br /> Load comb #2 #2 <br /> Length 1.47 2.90 <br /> Min req'd 1.47 2.90 <br /> Cb 1.00 1.00 <br /> Cb min 1.00 1.00 <br /> CO support 1.07 <br /> Fcc sup 625 1.07625 <br /> 625 <br /> 111 STAIR IA Upper Landing Beam <br /> Glulam-Unbalan.,West Species,24F-1.8E WS,5-1/8"x12" <br /> Supports:All-Timber-soft Beam,D.Fir-L No.2 <br /> Total length:15.81';Clear span:15.438';Volume=6.7 cult.;8 laminations,5-1/8"maximum width, <br /> Wet service;Lateral support:top=at supports,bottom=at supports; <br /> ' This section PASSES the design code check. <br /> Analysis vs.Allowable Stress and Deflection using NDS 2018: <br /> Criterion Analysis Value _ Design Value Unit Analysis/Design <br /> Shear fv* = 84 Fv' = 232 psi fv*/Fv' = 0.36 <br /> III Bending(*) fb = 1248 Fb' = 1870 psi fb/Fb' = 0.67 <br /> Live Defl'n 0.35 = L/529 0.52 = L/360 in 0.68 <br /> Total Defl'n 0.50 = L/370 0.78 = L/240 in 0.65 <br /> *The effect of point loads within a distance d of the support <br /> has been included as per NDS 3.4.3.1 <br /> I Additional Data: <br /> FACTORS: FIE(psi) CD CM Ct CL CV Cfu Cr Cfrt Notes Notch LC# <br /> Fv' 265 1.00 0.88 1.00 1.00 1.00 1.00 2 <br /> Fb.-1- 265 <br /> 1.00 0.80 1.00 0.974 1.000 1.00 1.00 2 <br /> Fcp' 650 - 0.53 1.00 - - - - 1.00 - - - <br /> E' 1.8 million 0.83 1.00 -- - - - 1.00 - - 2 <br /> Eminy' 0.85 million 0.83 1.00 - - -. 1.00 - - 2 <br /> i CRITICAL LOAD COMBINATIONS: <br /> Shear : LC #2 = D + L <br /> Rending(+): LC #2 = D + L <br /> Deflection: LC #2 = D + L (live) <br /> LC 4f2 = D + L (total) <br /> Bearing : Support 1 - LC #2 = D + L <br /> Support 2 - LC #2 = D + L <br /> D=dead L=live S=snow <br /> All LC's are listed in the Analysis output <br /> Load combinations: <br /> CALCULATIONS: <br /> V max = 5085, V design* = 3438 lbs; M(+) = 12796 lbs-ft <br /> EIy = 1328.38 lb-in"2 <br /> i <br /> "Live" deflection is due to all non--dead loads (live, wind, snow...) <br /> Total deflection = 1.0 dead + "live" <br /> Lateral stability(+): Lu = 15.63' Le = 28.69' RB = 12.5 <br /> Design Notes: <br /> 1.Analysis and design are in accordance with the ICC International Building Code(IBC 2018)and the National Design Specification(NDS 2018),using Allowable Stress Design(ASD).Design values are <br /> from the NDS Supplement. <br /> 2.Please verify that the default deflection limits are appropriate for your application. <br /> 3.Glulam design values are for materials conforming to ANSI 117-2015 and manufactured in accordance with ANSI A190.1-2012 <br /> 4.GLULAM:bxd=actual breadth x actual depth. <br /> 5.Glulam Beams shall be laterally supported according to the provisions of NDS Clause 3.3.3. <br /> I <br /> 6.GLULAM:bearing length based on smaller of Fcp(tension),Fcp(comp'n). 27 <br />