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Job #: 240051 <br />Date : 07/17/2024 <br />Plan : 2 <br />Dong Engineering Inc. <br />NEW MAIN HOUSE & ADU <br />1834 W.3RD ST, UNIT 3, SANTA ANA, CA 92703 <br />BEAM : 1 - DROP AT ENTRANCE <br />Loads(Downward+) <br />Beam Weight 6.2 plf from 0 ft to 9.75 ft <br />Roof Primary: (15+20)(4.8) = (DL=71.2PLF; LLr=95PLF) form 0 to 9.75 <br />Reactions (D+Lr+L/Max. Load comb.) <br />Bearing Down Up <br />1 841/841 0 <br />2 841/841 0 <br />USE 4 x 8 <br />Critcal Shear = 840 LB @0' 1.5xV/(F'v x A)= 0.22 <br />F'v = 225, A = 25.38 <br />Critcal Moment = 2047 LB-FT @4.75' M/(F'b x S)= 0.55 <br />F'b = 1462, S = 30.66 <br /> Critical Deflection for TL = -0.197 INCH @ 5 L/240 = 0.488" <br /> Critical Deflection for LL = -0.109 INCH @ 5 L/360 = 0.325" <br />1 2 <br />Moment <br />Shear <br />Deflection <br />9.75' <br />BEAM : 2 - HDR AT BED <br />Loads(Downward+) <br />Beam Weight 6.2 plf from 0 ft to 6 ft <br />Roof Primary: (15+20)(11.5) = (DL=172.5PLF; LLr=230PLF) form 0 to 6 <br />Exterior Wall: (15)(2) = (DL=30PLF) form 0 to 6 <br />Reactions (D+Lr+L/Max. Load comb.) <br />Bearing Down Up <br />1 1316/1316 0 <br />2 1316/1316 0 <br />USE 4 x 8 <br />Critcal Shear = 1316 LB @0' 1.5xV/(F'v x A)= 0.34 <br />F'v = 225, A = 25.38 <br />Critcal Moment = 1974 LB-FT @3' M/(F'b x S)= 0.53 <br />F'b = 1462, S = 30.66 <br /> Critical Deflection for TL = -0.072 INCH @ 3 L/240 = 0.3" <br /> Critical Deflection for LL = -0.038 INCH @ 3 L/360 = 0.2" <br />1 2 <br />Moment <br />Shear <br />Deflection <br />6' <br />Page 54 of 57 <br />1834 W Third St & <br />#2,33/21/2025