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• ���*7LS'3 <br /> �� <br /> � �6 �6 <br /> z '�I a�f � � Fit�Qrt t�r� <br /> PORCH BEAM ✓r��� Z <br /> P <br /> / w <br /> Ra Rs <br /> 1 1 1.5 1.5 1.5 1.5 <br /> -- —---- L— 8 -- ft. <br /> INPUT: <br /> w (DL) pEf 55 55 55 180 180 250 <br /> w (LL) pit 75 75 75 290 290 290 <br /> w(TL) pif 130 130 130 470 470 540 <br /> P (DL) �bs 1435 <br /> P (LL) Ibs 2195 <br /> P (TL) ibs 0 0 3630 0 0 <br /> RESULTS: <br /> RA(T�)= 3002 Ibs. Re(T�) = 3303 Ibs. <br /> VA(TL) = 3002 Ibs.(max.) Ve (TL) = 3303 Ibs.(max.) <br /> MA (T�)= 0 ft.lbs. MA-s (T�)= g711 ft.lbs.(max.) Me (T�) = 0 ft.lbs. <br /> 4 (DL) = 4 (DL)= 0.042 Ill. 0(DL)_ <br /> 4 (LL)= 4 (LL)= 0.063 Ill. 4 (LL) _ <br /> 4 (TL)= 4 (TL) = 0.105 Ill. 4 (TL) _ <br /> BEAM PROPERTIES: <br /> MATERIAL Fb Fv Fcjper�� E x 10^6 _ _ <br /> Manuf.Lbr. <br /> Timber DFL#2 875 170 625 1.3 <br /> Dimen. Lbr. <br /> psi psi psi psi <br /> b d A S I Brg.Lgth. Co 1.15 <br /> 5.5 11.5 63.25 121.2 697.1 0.08 CH 1 <br /> in. in. in^2 in.^3 in^4 ft. Cr 1 <br /> Ci 1 <br /> STRESSES: <br /> fv= 68 psi fv= 66 psi <br /> fb= 961 psi <br /> RATIOS OF ACTUAL TO ALLOWABLE STRESSES: <br /> fv/ Fv' = 0.35 fv/Fv' = 0.34 <br /> fb/ Fb'= 0.96 <br /> RATIOS OF SPAN TO DEFLECTION: <br /> L/ 1515 for LL <br /> L/ 914 for TL <br /> USE 6x12 DFL#2 <br /> v 3.3.03 <br />