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Jc, b Name: DALKE <br />Be'am Mrk: RB-9 <br /> <br /> 3.5 x 9. '25 <br /> <br />1.653 k. ip~ .827 ki0s <br /> <br /> S0an(ft)= 15.5 <br /> <br />Both ends Dinned <br /> <br />SUMMARY OF BEAN LOADS <br /> <br />TR IANGULAI~ LOAD: <br /> <br />Max at le.ft supp't; Dead ,= 120 <br />L. en..o, tht,:, 0 load = 15.5 ft <br />OC be. am spacing ~ I ft <br /> <br />I.,,i wlip 200 0!::~ F <br /> <br />WOOD BEAM DESIGN CRITERIA <br /> <br /> 1. Allowab].e. Bending,psi: Fb = 1250 <br /> 2. Allewab].e She.ar~ psi: Fv = 95 <br /> 3. Mod of [":la_~ticity, p~i: E := 1700000 <br /> 4. Duration of load fact,:,r = 1. 15 <br /> 5. I....~ve Load: Deflec'ti,z,n < L / 360 <br /> 6. D+L Load: Deflection < L.. / 240 <br /> 7. Unbraced top edge <br /> in region of +M (ft): Lu = 0 <br />'8. Unbraced bottom edge <br /> i.n re~lic, n of '-M (ft): Lu = 0 <br /> 9. EFF span Igth ratio: le/lu= 1.92 <br />iO. Allowed ,:,verstress: ' ' <br /> % / 100= .01 <br />ll. Exact Beam WIDTH (~.n): b = 3.5 <br /> <br />BF::AM F,,~I ZE <br /> <br />Berldi nc; <br /> <br />Shear <br /> <br /> Fy := '7/ o!~:j <br />£¢)1" ',? -', 1 ,. 53 I: i <br /> <br />Dead L,:)ad I)e f ] e,'_" ~ i ,:::,n <br />Live L,,:;:,ad De f 1 e,:: t i <br /> <br />D+I .... L,;;,ad De f l e,:: 'l: J. on <br /> <br />Allowable bendinQ <br />~s~ v' e'~;~: for +M: F" ~ b :,,, ], 4 [')7 ~.~,:~: :i <br /> r,::,~ .-M: F~b ::: ~437 p,::5. <br /> <br /> <br />