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Project:NEW 4X8 X 2FT HEADER 411 • Page <br /> Location:BATH 3 NEW WINDOW HEADER SSCBBC - <br /> Roof Beam _ of <br /> [2015 International Residential Code(2015 NDS)] r <br /> 3.5IN x 7.25 IN x 2.0 FT <br /> #2-Douglas-Fir-Larch-Dry Use StruCalc Version 10.0.1.6 12/14/2020 10:29:15 AM <br /> Section Adequate By:440.3% <br /> Controlling Factor:Shear <br /> DEFLECTIONS Center LOADING DIAGRAM <br /> Live Load 0.00 IN UMAX <br /> Dead Load 0.00 in <br /> Total Load 0.00 IN UMAX <br /> Live Load Deflection Criteria: L/360 Total Load Deflection Criteria:U360 <br /> REACTIONS A B <br /> Live Load 398 lb 398 lb <br /> Dead Load 251 lb 251 lb <br /> Total Load 649 lb 649 lb <br /> Bearing Length 0.30 in 0.30 in <br /> BEAM DATA <br /> Span Length 2 ft <br /> Unbraced Length-Top 0 ft 2ft <br /> Unbraced Length-Bottom 0 ft <br /> Roof Pitch 4 :12 <br /> Roof Duration Factor 1.15 <br /> ROOF LOADING <br /> MATERIAL PROPERTIES Side One: <br /> #2 Douglas-Fir-Larch Roof Live Load: LL= 25 psf <br /> Base Values Adjusted Roof Dead Load: DL= 15 psf <br /> Bending Stress: Fb= 900 psi Fb'= 1346 psi <br /> Cd=1.15 CF=1.30 Tributary Width: TW= 13.5 ft <br /> Side Two: <br /> Shear Stress: Fv= 180 psi Fv'= 207 psi Roof Live Load: LL= 30 psf <br /> Cd=1.15 Roof Dead Load: DL= 15 psf <br /> Modulus of Elasticity: E= 1600 ksi E'= 1600 ksi <br /> Comp.-L to Grain: Fc-1= 625 psi Fc--U= 625 psi Tributary Width: TW = 2 ft <br /> Wall Load: WALL= 0 plf <br /> Controlling Moment: 324 ft-lb <br /> 1.0 ft from left support SLOPE/PITCH ADJUSTED LENGTHS AND LOADS <br /> Created by combining all dead and live loads. Adjusted Beam Length: Ladj= 2 ft <br /> Controlling Shear: -648 lb Beam Self Weight: BSW= 6 plf <br /> At support. Beam Uniform Live Load: wL= 398 plf <br /> Created by combining all dead and live loads. Beam Uniform Dead Load: wD_adj= 251 plf <br /> Total Uniform Load: wT= 648 plf <br /> Comparisons with required sections: Req'd Provided <br /> Section Modulus: 2.89 in3 30.66 in3 <br /> Area(Shear): 4.7 in2 25.38 in2 <br /> Moment of Inertia(deflection): 2.19 in4 111.15 in4 <br /> Moment: 324 ft-lb 3438 ft-lb <br /> Shear: -648 lb 3502 lb <br /> NOTES <br /> _, ., ,,. . .",,,,:... _ --;:--2r----N. <br /> D‘gt. i.i & kin) <br /> DEC 1 6 2020 U <br /> CITY OF EVERETT <br /> Permit Services <br />