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r J <br /> �USTOM DESIGN & ENGINEERING, INC <br /> STRUCTURAL ANALYSIS&DESIGN <br /> Cc =1.00 <br /> Cf =1.10 <br /> C� =1.00 <br /> C� =1.000 <br /> F�b =Fb CD CM Ci CL Cf Cr Ci <br /> F'b =900(1.15)(1.00)(1.00)(1.00)(1.10)(1.00)(1.00)=1139 psi <br /> F'bx=1139 psi>fbx=938 psi, RESULT=PASS <br /> Check Shear <br /> F'y =Fv CD CM Ci CH <br /> F'� =95(1.15)(1.00)(1.00)(1.00) =109 psi <br /> F'v=109 psi>fv=98 psi, RESULT=PASS <br /> Check Deflection <br /> Max allowed deflection-Total(dead+live),9.00(12)/360=0.300 in. <br /> Maximum defleCtion,y=S/384[w L 4/E I] <br /> Beam deflection=0.002 in. <br /> Live+dead load deflection=0.127 in. <br /> Total deflection= �0.129� in.<0.300 in., RESULT=PASS <br /> Item 1B—Header @ Living room (back-side) of house <br /> 570.0 IbJft <br /> 8.50' <br /> 2423 4 x 12,DF No 2 2423 <br /> Load duration=Snow,Co=1.15 <br /> Live load =25.0,psf <br /> Dead load =15.0,psf <br /> Tributary width =14.25,ft <br /> Beam/loist span,L =8.50 ft <br /> 11006 60T"AVE WEST-MUKILTEO WA 98275 ,.�-� -- <br /> PHONE (425) 343-7517- FAX(425)493-8388 ��� <br /> �1 <br />