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Dong Engineering Inc. <br />NEW MAIN HOUSE & ADU <br />1834 W.3RD ST, SANTA ANA, CA 92703 <br />Job #: 240051 <br />Date : 01/07/2025 <br />Plan : 1 <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 : F3 - D.J. 2X12#2 @ 16" O.C. TYP. (MAX L=10'- <br />6") <br />Loads(Downward+) <br />Deck Primary: (13+60)(1.3) = (DL=17.4PLF; LLr=80.1PLF) form 0 to 10.5 <br />Reactions (D+Lr+L/Max. Load comb.) <br />Bearing Down Up <br />1 512/512 0 <br />2 512/512 0 <br />USE 2 x 8 <br />Critcal Shear = 511 LB @0' 1.5xV/(F'v x A)= 0.39 <br />F'v = 180, A = 10.88 <br />Critcal Moment = 1343 LB-FT @5.25' M/(F'b x S)= 0.98 <br />F'b = 1242, S = 13.14 <br /> Critical Deflection for TL = -0.35 INCH @ 5.25 L/240 = 0.525" <br /> Critical Deflection for LL = -0.287 INCH @ 5.25 L/360 = 0.35" <br />1 2 <br />Moment <br />Shear <br />Deflection <br />10.5' <br />Page 34 of 57 <br />1834 W Third St & <br />#2,33/21/2025