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Dong Engineering Inc. <br />ADDITION + ADU <br />5121 W.ROBERTS DR & #2, SANTA ANA, CA 92704 <br />Job #: 240056 <br />Date : 06/21/2024 <br />Plan : 1 <br />BEAM : 1 - HIP AT BEDROOM <br />Loads(Downward+) <br />Beam Weight 5.5 plf from 0 ft to 15 ft <br />Roof Rafter: (11+20)(10.5~0) = (DL=115.5~0PLF; LLr=210~0PLF) form 0 to 15 <br />Reactions (D+Lr+L/Max. Load comb.) <br />Bearing Down Up <br />1 591/591 0 <br />2 1702/1702 0 <br />3 231/231 0 <br />USE 2-2 x 8 <br />Critcal Shear = -901 LB @5.5' 1.5xV/(F'v x A)= 0.26 <br />F'v = 225, A = 22.5 <br />Critcal Moment = -1156 LB-FT @5.5' M/(F'b x S)= 0.33 <br />F'b = 1462, S = 28.12 <br /> Critical Deflection for TL = -0.049 INCH @ 10.5 L/240 = 0.475" <br /> Critical Deflection for LL = -0.029 INCH @ 10.5 L/360 = 0.317" <br />1 2 3 <br />Moment <br />Shear <br />Deflection <br />5.5'9.5' <br />BEAM : 2 - CLG AT BEDROOM <br />Loads(Downward+) <br />Beam Weight 5.5 plf from 0 ft to 11.75 ft <br />Ceiling Joist DL: (4)(1.3) = (DL=5.3PLF) form 0 to 11.75 <br />Point load @ 10.5 : Load from beam 1 at Support 1(P1) <br />Point load @ 10.5 : Load from beam 1 at Support 1(P2) <br />Reactions (D+Lr+L/Max. Load comb.) <br />Bearing Down Up <br />1 189/189 0 <br />2 1120/1120 0 <br />USE 2-2 x 8 <br />Critcal Shear = -1119 LB @11.75' 1.5xV/(F'v x A)= 0.33 <br />F'v = 225, A = 22.5 <br />Critcal Moment = 1391 LB-FT @10.5' M/(F'b x S)= 0.4 <br />F'b = 1462, S = 28.12 <br /> Critical Deflection for TL = -0.155 INCH @ 6.5 L/240 = 0.588" <br /> Critical Deflection for LL = -0.082 INCH @ 6.5 L/360 = 0.392" <br />1 2 <br />P1P2 <br />Moment <br />Shear <br />Deflection <br />11.75' <br />16 of 44 <br />FLOOD ZONE - 5121 W <br />Roberts Dr & #23/19/2025