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Dong Engineering Inc. <br />ADDITION-ADU <br />2102 N.WRIGHT ST, SANTA ANA, CA 92705 <br />Job #: 230520 <br />Date : 11/28/2023 <br />Plan : 1 <br />BEAM : 1 - CLG @ MASTER BEDROOM <br />Loads(Downward+) <br />Beam Weight 10.1 plf from 0 ft to 10.25 ft <br />Roof Primary: (15+20)(7.8) = (DL=116.2PLF; LLr=155PLF) form 0 to 10.25 <br />Roof Primary: (15+20)(0.7) = (DL=10PLF; LLr=13.3PLF) form 0 to 10.25 <br />Reactions (D+Lr+L/Max. Load comb.) <br />Bearing Down Up <br />1 1562/1561 0 <br />2 1562/1561 0 <br />USE 6 x 8 <br />Critcal Shear = 1561 LB @0' 1.5xV/(F'v x A)= 0.26 <br />F'v = 212, A = 41.25 <br />Critcal Moment = 3998 LB-FT @5' M/(F'b x S)= 0.55 <br />F'b = 1688, S = 51.56 <br /> Critical Deflection for TL = -0.244 INCH @ 5 L/240 = 0.512" <br /> Critical Deflection for LL = -0.135 INCH @ 5 L/360 = 0.342" <br />1 2 <br />Moment <br />Shear <br />Deflection <br />10.25' <br />BEAM : 2 - DROP @ STUDIO ADU <br />Loads(Downward+) <br />Beam Weight 6.2 plf from 0 ft to 7.25 ft <br />Roof Primary: (15+20)(8) = (DL=120PLF; LLr=160PLF) form 0 to 7.25 <br />Roof Primary: (15+20)(0.7) = (DL=10PLF; LLr=13.3PLF) form 0 to 7.25 <br />Reactions (D+Lr+L/Max. Load comb.) <br />Bearing Down Up <br />1 1122/1122 0 <br />2 1122/1122 0 <br />USE 4 x 8 <br />Critcal Shear = 1121 LB @0' 1.5xV/(F'v x A)= 0.29 <br />F'v = 225, A = 25.38 <br />Critcal Moment = 2030 LB-FT @3.75' M/(F'b x S)= 0.54 <br />F'b = 1462, S = 30.66 <br /> Critical Deflection for TL = -0.108 INCH @ 3.5 L/240 = 0.362" <br /> Critical Deflection for LL = -0.06 INCH @ 3.5 L/360 = 0.242" <br />1 2 <br />Moment <br />Shear <br />Deflection <br />7.25' <br />23 of 25 <br />2102 N Wright St & #2 - <br />101117955-566/13/2024