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Gan Residence <br /> Hallway Post Down to Beam at Crawl <br /> Monday,March 31,2008 <br /> WOOD BEAM-SIMPLE SPAN <br /> Maximum moment: 2.6 kin 1l # 1D <br /> at 31-4 from left due to Dl. <br /> Beam span: 5 feet 0 inches center line to c' ter line <br /> Reaction at IeR support: 788 pounds <br /> Reaction at right support: 1,555 pounds <br /> Reactions include approximate weight of beam <br /> WOOD TYPE: Douglas Fir-Lai ch No. 2 <br /> with the following base table design values: <br /> Fiber stress in bending: Fb=875 psi <br /> Horizontal shear: Fv= 85 psi <br /> Modulus of elasticity: E= 1.3 million psi <br /> Working fiber stress has been adjusted for: <br /> Load Duration -.9 <br /> (for DL) <br /> Working shear stress has been adjusted for: <br /> Small splits only- 15%increase <br /> Load Duration - .9 <br /> (for DL) <br /> MAXIMUM PERMITTED working stresses are therefore: <br /> Fb=775 psi <br /> Fv= 85 psi <br /> E= 1.3 million psi <br /> BEAM SELECTED: <br /> 4 inches nominal width <br /> by <br /> 10 inches nominal depth <br /> (Actual Size: 3.5 x 9.5 inches) <br /> Beams and Stringers—Single timber <br /> Beam will deflect 1 in 0 under live load <br /> Beam will deflect I in 2191 under total load <br /> ACTUAL DEFLECTION at center of beam will be 0.00 inches under live load <br /> ACTUAL FIBER STRESS'under full load: 599 psi, 77%max <br /> ACTUAL SHEAR STRESS under full load: 70 psi, 82%max <br /> � l <br />