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Dong Engineering Inc. <br />ADU <br />3205 S.DEEGAN DR, SANTA ANA, CA 92704 <br />Job #: 240165 <br />Date : 04/15/2024 <br />Plan : 1 <br />BEAM : 1 - CONT. CLG AT LIVING <br />Loads(Downward+) <br />Beam Weight 9.6 plf from 0 ft to 19.5 ft <br />Roof Primary: (15+20)(10) = (DL=150PLF; LLr=200PLF) form 0 to 19.5 <br />Reactions (D+Lr+L/Max. Load comb.) <br />Bearing Down Up <br />1 -845/0 -383 <br />2 5565/5565 0 <br />3 2151/2152 0 <br />USE 4 x 12 <br />Critcal Shear = 3134 LB @4.5' 1.5xV/(F'v x A)= 0.53 <br />F'v = 225, A = 39.38 <br />Critcal Moment = -7369 LB-FT @4.5' M/(F'b x S)= 0.87 <br />F'b = 1375, S = 73.83 <br /> Critical Deflection for TL = -0.305 INCH @ 12.52 L/240 = 0.75" <br /> Critical Deflection for LL = -0.167 INCH @ 12.52 L/360 = 0.5" <br />1 2 3 <br />Moment <br />Shear <br />Deflection <br />4.5'15' <br />BEAM : 2 - CLG AT BEDROOM <br />Loads(Downward+) <br />Beam Weight 9.6 plf from 0 ft to 11.25 ft <br />Roof Primary: (15+20)(10) = (DL=150PLF; LLr=200PLF) form 0 to 11.25 <br />Reactions (D+Lr+L/Max. Load comb.) <br />Bearing Down Up <br />1 2023/2023 0 <br />2 2023/2023 0 <br />USE 4 x 12 <br />Critcal Shear = 2022 LB @0' 1.5xV/(F'v x A)= 0.34 <br />F'v = 225, A = 39.38 <br />Critcal Moment = 5686 LB-FT @5.5' M/(F'b x S)= 0.67 <br />F'b = 1375, S = 73.83 <br /> Critical Deflection for TL = -0.183 INCH @ 5.5 L/240 = 0.562" <br /> Critical Deflection for LL = -0.102 INCH @ 5.5 L/360 = 0.375" <br />1 2 <br />Moment <br />Shear <br />Deflection <br />11.25' <br />Page 15 of 20 <br />3205 S Deegan Dr <br />#23/10/2025