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Job #: 240051 <br />Date : 07/17/2024 <br />Plan : 2 <br />Dong Engineering Inc. <br />NEW MAIN HOUSE & ADU <br />1834 W.3RD ST, UNIT 3, SANTA ANA, CA 92703 <br />BEAM : C1 - C.J. 2X6#2 @ 16" O.C. TYP. (MAX L=15'-0") <br />Loads(Downward+) <br />Ceiling Joist: (4+10)(1.3) = (DL=5.3PLF; LLr=13.4PLF) form 0 to 15 <br />Reactions (D+Lr+L/Max. Load comb.) <br />Bearing Down Up <br />1 140/140 0 <br />2 140/140 0 <br />USE 2 x 6 <br />Critcal Shear = 140 LB @0' 1.5xV/(F'v x A)= 0.11 <br />F'v = 225, A = 8.25 <br />Critcal Moment = 525 LB-FT @7.5' M/(F'b x S)= 0.49 <br />F'b = 1682, S = 7.56 <br /> Critical Deflection for TL = -0.64 INCH @ 7.5 L/240 = 0.75" <br /> Critical Deflection for LL = -0.457 INCH @ 7.5 L/360 = 0.5" <br />1 2 <br />Moment <br />Shear <br />Deflection <br />15' <br />BEAM : C2 - C.J. 2X8#2 @ 16" O.C. TYP. (MAX L=20'-0") <br />Loads(Downward+) <br />Ceiling Joist: (4+10)(1.3) = (DL=5.3PLF; LLr=13.4PLF) form 0 to 20 <br />Reactions (D+Lr+L/Max. Load comb.) <br />Bearing Down Up <br />1 187/187 0 <br />2 187/187 0 <br />USE 2 x 8 <br />Critcal Shear = 186 LB @0' 1.5xV/(F'v x A)= 0.11 <br />F'v = 225, A = 10.88 <br />Critcal Moment = 934 LB-FT @10' M/(F'b x S)= 0.55 <br />F'b = 1552, S = 13.14 <br /> Critical Deflection for TL = -0.883 INCH @ 10 L/240 = 1" <br /> Critical Deflection for LL = -0.631 INCH @ 10 L/360 = 0.667" <br />1 2 <br />Moment <br />Shear <br />Deflection <br />20' <br />Page 55 of 57 <br />1834 W Third St & <br />#2,33/21/2025