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MONTE CLARK ENGINEERING Title: Job# <br /> 53 WAGON TRAIL Dsgnr: Date: 11:31 AM, 30 JUN 04 <br /> COLUMBUS, MONTANA 59019 Description <br /> 1-888-280-6840 Scope: <br /> mce@montana.com <br /> Rev. 560100 <br /> User.KW-0602045,Ver 5.6.1,25-Oct-2002 General Timber Beam Page 1 <br /> (c)1983-2002 ENERCALC Engineering Software c\ec55\o'shaughnessy.ecw.Calculations <br /> Description Typical roof rafters <br /> General Information Calculations are designed to 1997 NDS and 1997 UBC Requirements <br /> Section Name VersaLam1.75x11.875 Center Span 17.50 ft . . . . .Lu 0.00 ft <br /> Beam Width 1.750 in Left Cantilever ft . .. . .Lu 0.00 ft <br /> Beam Depth 11.880 in Right Cantilever ft . . . . .Lu 0.00 ft <br /> Member Type GluLam Boise Cascade,Versa Lam 2800 Fb <br /> Bm Wt.Added to Loads Fb Base Allow 2,800.0 psi <br /> Load Dur. Factor 1.150 Fv Allow 190.0 psi <br /> Beam End Fixity Pin-Pin Fc Allow 900.0 psi Repetitive Member <br /> Wood Density 45.000 pcf E 2,000.0 ksi <br /> Full Length Uniform Loads <br /> Center DL 10.60#/ft LL 35.40 #/ft <br /> Left Cantilever DL #/ft LL #/ft <br /> Right Cantilever DL #/ft LL #/ft <br /> Summary Beam Design OK <br /> Span= 17.50ft, Beam Width= 1.750in x Depth=11.88in, Ends are Pin-Pin <br /> Max Stress Ratio 0.182 : 1 <br /> Maximum Moment 2.0 k-ft Maximum Shear* 1.5 0.6 k <br /> Allowable 11.0 k-ft Allowable 4.5 k <br /> Max. Positive Moment 2.01 k-ft at 8.750 ft Shear: @ Left 0.46 k <br /> Max. Negative Moment 0.00 k-ft at 17.500 ft @ Right 0.46 k <br /> Max @ Left Support 0.00 k-ft Camber: @ Left 0.000 in <br /> Max @ Right Support 0.00 k-ft @ Center 0.111 in <br /> Max. M allow 11.05 Reactions... @ Right 0.000in <br /> fb 585.84 psi fv 29.43 psi Left DL 0.15 k Max 0.46 k <br /> Fb 3,220.00 psi Fv 218.50 psi Right DL 0.15 k Max 0.46 k <br /> r- <br /> Deflections <br /> Center Span... Dead Load Total Load Left Cantilever... Dead Load Total Load <br /> Deflection -0.074 in -0.227 in Deflection 0.000 in 0.000 in <br /> ...Location 8.750 ft 8.750 ft ...Length/Deft 0.0 0.0 <br /> ...Length/Dell 2,846.5 927.04 Right Cantilever... <br /> Camber(using 1.5`D.L. Defl)... Deflection 0.000 in 0.000 in <br /> @ Center 0.111 in ...Length/Deft 0.0 0.0 <br /> @ Left 0.000 in <br /> @ Right 0.000 in <br /> Stress Calcs <br /> Bending Analysis <br /> Ck 20.212 Le 0.000 ft Sxx 41.164 in3 Area 20.790 in2 <br /> Cv 1.000 Rb 0.000 Cl 0.000 <br /> Max Moment Sxx Req'd Allowable fb <br /> @ Center 2.01 k-ft 7.49 in3 3,220.00 psi <br /> @ Left Support 0.00 k-ft 0.00 in3 3,220.00 psi <br /> @ Right Support 0.00 k-ft 0.00 in3 3,220.00 psi <br /> Shear Analysis @ Left Support @ Right Support <br /> Design Shear 0.61 k 0.61 k <br /> Area Required 2.800 in2 2.800 in2 <br /> Fv:Allowable 218.50 psi 218.50 psi <br /> Bearing @ Supports <br /> Max.Left Reaction 0.46 k Bearing Length Req'd 0.292 in <br /> Max. Right Reaction 0.46 k Bearing Length Req'd 0.292 in <br />