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23-12434 <br />7/18/2024 <br />CONTINUOUS FOOTING DESIGN <br />Project:Probation St Andrew <br />Location:Footing below Metal Stud Wall <br />FOOTING LOAD D = Dead Load <br />L = Live Load <br />D L Lr S E W Lr = Roof Live Load <br />P kips 1.60 0.00 6.70 0.00 0.00 0.00 S = Snow Load <br />M ft-kips 0.00 0.00 0.00 0.00 20.50 0.00 <br />ρ =1.30 W = Wind Load <br />FOOTING DATA Lf = Footing Length <br />Bf = Footing Width <br />Lf =36.0 ft Pf =11 kips Df = Footing Thickness <br />Bf =1.0 ft Pf,net =4 kips Pf = 0.15kcf x Lf x Bf x Df <br />Df =24 in Pf,net = 0.05kcf x Lf x Bf x Df <br />SOIL BEARING CHECK <br />min width 1 ft <br />min depth 1.5 ft <br />width change 0.0 ft e = M / P <br />depth change 1 ft σ = 2 P / [3 Bf x (Lf / 2 - e)] <br />P incease for width 300 psf σ Bf ) <br />P increase for depth 600 psf <br />σmin = 2000 psf <br />σincreased = 2000 psf <br />max=2000 psf <br />all = 2000 psf e > Lf / 6:σmax = [P / (BfxLf)] x (1+6e/Lf) <br />1.33 σall = 2667 psf ** compared to LC w/ E or W loads σmin = [P / (BfxLf)] x (1-6e/Lf) <br /> <br />LC1 LC2 LC3 LC4 LC5 <br />P kips 12 7 17 7 17 <br />M ft-kips 0 19 14 0 0 <br />e ft 0.0 2.5 0.8 0.0 0.0 <br />σmax psf 331 293 549 207 484 <br />σmin psf 331 120 419 207 484 <br /> <br />Okay Okay Okay Okay Okay <br /> <br />LOAD COMBINATIONS (ASCE 7-16 2.4.1 & 12.4.2.3) <br />LC1 D + L + (Lr,S)LC4 0.6D + W <br />LC2 0.6D + 0.7E LC5 D + 0.75 [L + (Lr,S) + W] <br />ρPueh P = Pd + Pf + 0.75 [Pl + (Plr,Ps) + Pw] <br />ρ Mueh M = Md + 0.75 [Ml + (Mlr,Ms) + Mw] <br />LC3 D + 0.75 [L + (Lr,S) + 0.7E] <br />ρPueh] <br />ρMueh] <br />Date <br />Job # <br />Sheet # <br />Continuous Footing Design Page 1 of 2 <br />P1.44 <br />1700 E St Andrew <br />Pl10/8/2024