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Pad Design Per 2022 CBC (LRFD) <br />Geometry <br />Unit Dimensions Pad Dimensions <br />L = 24.0 in t =5.0 in Concrete thickness <br />W = 34.8 in l' =6.0 in Extent beyond end of Unit <br />C.G. (h) = 30.5 in L' = 36 in = L +2l' <br />Weight = 1050 lbs W' (B) = 46.8 in = W + 2l' <br />FPH =331.8 lbs f'c =3000 psi <br />fy =60 ksi <br />qallowable =500 psf Weight = 731.25 lbs 150 pcf x t x L x W <br />Load Combinations <br />ASD LRFD <br />LC 1 = D + (0.7 x E) LC 1 =(1.2 + 0.2SDS)D + E <br />LC 2 = 0.6D + (0.7 x E) LC 2 =(0.9 - 0.2SDS)D + E <br />Mot =7092 lb-in =(F ph xC.G.)x0.7 Mot =10131 lb-in = (F ph xC.G.) <br />Eccentricity <br />LC 1: e = 3.98 in = M ot /(Weight + Pad) <br />LC 2: e = 6.64 in = M ot /(Weight + Pad)-->Governs <br />B/6: 6 in = min(L'xW')/6 <br />==>Large Eccentricity =if(B/6 > e, Small Eccentricity, Large Eccentricity) <br />f1 =170.0 psf =if("Small Eccentricity",(P/BH + 6M/BH 2 ),(2P/3B(H/2-e)) <br />Soil O.K.=if(f 1 <q allowable , Soik O.K., Soil Failure) <br />PROJECT <br />PROJECT NO. <br />ITEM <br />McGuff TI <br />Foundation ENGINEER <br />DATE <br />SHEET NO. <br />3/12/2025 <br />CL <br />S24-0254 <br /> BRANDOW & JOHNSTON STRUCTURAL & CIVIL ENGINEERS | LOS ANGELES NEWPORT BEACH