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Dong Engineering Inc. <br />2 ADU'S <br />512-514 HUYLARS LN, SANTA ANA, CA 92703 <br />Job #: 250195 <br />Date : 05/21/2025 <br />Plan : 1 <br />BEAM : 1B - HIP @ LIVING <br />Loads(Downward+) <br />Beam Weight 5.5 plf from 0 ft to 11.5 ft <br />Roof Rafter: (14+20)(4.2~0) = (DL=59.5~0PLF; LLr=85~0PLF) form 0 to 11.5 <br />Roof Rafter: (14+20)(2.5~0) = (DL=35~0PLF; LLr=50~0PLF) form 0 to 7 <br />Roof Rafter: (14+20)(5.8~4.2) = (DL=80.5~59.5PLF; LLr=115~85PLF) form 7 to 11.5 <br />Reactions (D+Lr+L/Max. Load comb.) <br />Bearing Down Up <br />1 980/980 0 <br />2 977/977 0 <br />USE 2-2 x 8 <br />Critcal Shear = -985 LB @11.25' 1.5xV/(F'v x A)= 0.29 <br />F'v = 225, A = 22.5 <br />Critcal Moment = 2388 LB-FT @5.5' M/(F'b x S)= 0.69 <br />F'b = 1462, S = 28.12 <br /> Critical Deflection for TL = -0.37 INCH @ 6 L/240 = 0.575" <br /> Critical Deflection for LL = -0.21 INCH @ 6 L/360 = 0.383" <br />1 2 <br />Moment <br />Shear <br />Deflection <br />11.5' <br />BEAM : 2 - CLG @ BEDRM.1 <br />Loads(Downward+) <br />Beam Weight 20.3 plf from 0 ft to 17.25 ft <br />Roof Rafter: (14+20)(8.2~7.8) = (DL=115.5~108.5PLF; LLr=165~155PLF) form 16.5 to <br />17.25 <br />Roof Rafter: (14+20)(4.2~8.2) = (DL=59.5~115.5PLF; LLr=85~165PLF) form 8 to 16.25 <br />Ceiling Joist DL: (4)(1.3) = (DL=5.3PLF) form 0 to 17.25 <br />Point load @ 8 : Load from beam 1 at Support 2(P1) <br />Point load @ 8 : Load from beam 1A at Support 1(P2) <br />Reactions (D+Lr+L/Max. Load comb.) <br />Bearing Down Up <br />1 1945/1945 0 <br />2 2773/2773 0 <br />USE 7" x 9 1/4" PSL <br />Critcal Shear = -2890 LB @16.89' 1.5xV/(F'v x A)= 0.18 <br />F'v = 362, A = 64.75 <br />Critcal Moment = 14741 LB-FT @8' M/(F'b x S)= 0.49 <br />F'b = 3625, S = 99.82 <br /> Critical Deflection for TL = -0.753 INCH @ 8.62 L/240 = 0.862" <br /> Critical Deflection for LL = -0.403 INCH @ 8.62 L/360 = 0.575" <br />1 2 <br />P1P2 <br />Moment <br />Shear <br />Deflection <br />17.25' <br />17 of 26