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Dong Engineering Inc. <br />ADU <br />1602 W BROOK ST UNIT 2, SANTA ANA, CA 92703 <br />Job #: 240190 <br />Date : 05/14/2024 <br />Plan : 1 <br />BEAM : 1 - CLG AT KITCHEN 1 <br />Loads(Downward+) <br />Beam Weight 6.2 plf from 0 ft to 8 ft <br />Roof Primary: (15+20)(9.2) = (DL=138.8PLF; LLr=185PLF) form 0 to 8 <br />Reactions (D+Lr+L/Max. Load comb.) <br />Bearing Down Up <br />1 1320/1320 0 <br />2 1320/1320 0 <br />USE 4 x 8 <br />Critcal Shear = 1319 LB @0' 1.5xV/(F'v x A)= 0.34 <br />F'v = 225, A = 25.38 <br />Critcal Moment = 2639 LB-FT @4' M/(F'b x S)= 0.7 <br />F'b = 1462, S = 30.66 <br /> Critical Deflection for TL = -0.171 INCH @ 4 L/240 = 0.4" <br /> Critical Deflection for LL = -0.096 INCH @ 4 L/360 = 0.267" <br />1 2 <br />Moment <br />Shear <br />Deflection <br />8' <br />BEAM : 2 - CLG AT KITHEN 2 <br />Loads(Downward+) <br />Beam Weight 12.7 plf from 0 ft to 18 ft <br />Roof Primary: (15+20)(1.3) = (DL=20PLF; LLr=26.7PLF) form 0 to 18 <br />Exterior Wall: (15)(3) = (DL=45PLF) form 0 to 9 <br />Point load @ 6.5 : Load from beam 1 at Support 2(P1) <br />Reactions (D+Lr+L/Max. Load comb.) <br />Bearing Down Up <br />1 1682/1682 0 <br />2 1113/1113 0 <br />USE 6 x 10 <br />Critcal Shear = 1681 LB @0' 1.5xV/(F'v x A)= 0.22 <br />F'v = 212, A = 52.25 <br />Critcal Moment = 8726 LB-FT @6.5' M/(F'b x S)= 0.75 <br />F'b = 1688, S = 82.73 <br /> Critical Deflection for TL = -0.707 INCH @ 8.51 L/240 = 0.9" <br /> Critical Deflection for LL = -0.324 INCH @ 8.51 L/360 = 0.6" <br />1 2 <br />P1 <br />Moment <br />Shear <br />Deflection <br />18' <br />22 of 26