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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 : 12 - FL AT KITCHEN <br />Loads(Downward+) <br />Beam Weight 11.9 plf from 0 ft to 12.5 ft <br />Roof Primary: (15+20)(2.5) = (DL=37.5PLF; LLr=50PLF) form 0 to 12.5 <br />Exterior Wall: (15)(14~11) = (DL=210~165PLF) form 0 to 12.5 <br />Point load @ 2.25 : Load from beam 4 at Support 1(P1) <br />Point load from Panel P1(Right) of Line 1 at @ 3.75(P2*) <br />Reactions (D+Lr+L/Max. Load comb.) <br />Bearing Down Up Overstrength <br />1 4439/5490 0 5490 <br />2 2316/3239 0 3239 <br />USE 3 1/2" x 11 7/8" LSL <br /> Design with the seismic load effect with overstrength (Omega = 2.5) <br />Critcal Shear = 4438 LB @0' 1.5xV/(F'v x A)= 0.41 <br />F'v = 388, A = 41.56 <br />Critcal Moment = 18544 LB-FT @3.75' M/(F'b x S)= 0.72 <br />F'b = 3720, S = 82.26 <br /> Critical Deflection for TL = -0.367 INCH @ 6 L/240 = 0.625" <br /> Critical Deflection for LL = -0.129 INCH @ 6 L/360 = 0.417" <br />1 2 <br />P1 P2* <br />Moment <br />Shear <br />Deflection <br />12.5' <br />BEAM : 13 - FL AT DINING <br />Loads(Downward+) <br />Beam Weight 26 plf from 0 ft to 19 ft <br />Floor Primary: (13+40)(6.2) = (DL=81.2PLF; LL=250PLF) form 4.75 to 19 <br />Roof Rafter: (11+20)(3.8) = (DL=41.2PLF; LLr=75PLF) form 0 to 4.75 <br />Ceiling Joist DL: (4)(5.5) = (DL=22PLF) form 0 to 4.75 <br />Interior Wall: (10)(3.5) = (DL=35PLF) form 4.75 to 15.25 <br />Point load @ 4.75 : Load from beam 8 at Support 2(P1) <br />Point load @ 4.75 : Load from beam 12 at Support 1(P2) <br />Reactions (D+Lr+L/Max. Load comb.) <br />Bearing Down Up Overstrength <br />1 6874/6142 0 6142 <br />2 4729/4224 0 4224 <br />USE 7" x 11 7/8" PSL <br /> Design with the seismic load effect with overstrength (Omega = 2.5) <br />Critcal Shear = 5192 LB @0' 1.5xV/(F'v x A)= 0.32 <br />F'v = 290, A = 83.12 <br />Critcal Moment = 24983 LB-FT @7.6' M/(F'b x S)= 0.63 <br />F'b = 2900, S = 164.52 <br /> Critical Deflection for TL = -0.889 INCH @ 8.89 L/240 = 0.95" <br /> Critical Deflection for LL = -0.358 INCH @ 8.89 L/360 = 0.633" <br />1 2 <br />P1P2 <br />Moment <br />Shear <br />Deflection <br />19' <br />Page 30 of 57 <br />1834 W Third St & <br />#2,33/21/2025