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Dong Engineering Inc. <br />ADU <br />1225 N.WEST ST, SANTA ANA, CA 92703 <br />Job #: 240363 <br />Date : 07/31/2024 <br />Plan : 1 <br />BEAM : 3 - HDR AT LIVING ROOM <br />Loads(Downward+) <br />Beam Weight 4.7 plf from 0 ft to 4.25 ft <br />Roof Rafter: (11+20)(11) = (DL=121PLF; LLr=220PLF) form 0 to 4.25 <br />Ceiling Joist DL: (4)(9.2) = (DL=37PLF) form 0 to 4.25 <br />Exterior Wall: (15)(2) = (DL=30PLF) form 0 to 4.25 <br />Reactions (D+Lr+L/Max. Load comb.) <br />Bearing Down Up <br />1 876/877 0 <br />2 877/877 0 <br />USE 4 x 6 <br />Critcal Shear = 876 LB @0' 1.5xV/(F'v x A)= 0.3 <br />F'v = 225, A = 19.25 <br />Critcal Moment = 928 LB-FT @2' M/(F'b x S)= 0.43 <br />F'b = 1462, S = 17.65 <br /> Critical Deflection for TL = -0.039 INCH @ 2 L/240 = 0.212" <br /> Critical Deflection for LL = -0.021 INCH @ 2 L/360 = 0.142" <br />1 2 <br />Moment <br />Shear <br />Deflection <br />4.25' <br />BEAM : C1 - C.J, 2X6 DLF#2 @ 16" O.C. (MAX L=15'-3") <br />Loads(Downward+) <br />Ceiling Joist: (4+10)(1.3) = (DL=5.3PLF; LLr=13.4PLF) form 0 to 15.25 <br />Reactions (D+Lr+L/Max. Load comb.) <br />Bearing Down Up <br />1 143/143 0 <br />2 143/143 0 <br />USE 2 x 6 <br />Critcal Shear = 142 LB @0' 1.5xV/(F'v x A)= 0.11 <br />F'v = 225, A = 8.25 <br />Critcal Moment = 543 LB-FT @7.62' M/(F'b x S)= 0.51 <br />F'b = 1682, S = 7.56 <br /> Critical Deflection for TL = -0.684 INCH @ 7.63 L/240 = 0.762" <br /> Critical Deflection for LL = -0.488 INCH @ 7.63 L/360 = 0.508" <br />1 2 <br />Moment <br />Shear <br />Deflection <br />15.25' <br />16 of 18