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PROJECT Pace Supply <br />FOR The Beacon Group <br />SHEET NO.50 <br />CALCULATED BY TC <br />DATE <br />Slab and Soil Check <br />The slab will be checked for puncture and bearing stress.  If no puncture occurs, the slab is assumed to distribute <br />the load over a larger area of the slab. <br />Pmax = LB <br /> Puncture: <br />Fpunct =2.66 x (F'c^0.5)<==(SECTION 1922.5.4) <br />=2.66 x (3000 PSI)^0.5 <br />=146 PSI <br />Apunct =[(Weff.+t/2)+(Deff.+t/2)] x 2 x t <br />=[(5 IN + 6 IN/2) + (5 IN + 6 IN/2)] x 2 x 6 IN <br />=192 IN^2 <br />fv/Fv =P/[(Apunct)(Fpunct)] <br />=4807 LB/[192 IN^2 x 146 PSI x 0.55] <br />= 1.0  OK <br /> Bearing: <br />ØBn =0.85 x Ø x f'c x A1 <br />=35,063 LB <br />Pu / ØBn =4807 LB / 35063 LB <br />= 1.0  OK <br /> Slab Tension: <br />Asoil =P/[1.0 x fsoil]Weff. =5.00 IN <br />=4807 LB/[1.0 x 1000 PSF/(144IN^2/FT^2)]Deff. =5.00 IN <br />=692 IN^2 <br />L =Asoil^0.5 A1 =25.00 IN^2 <br />=(692 IN^2)^0.5 <br />=26.3 IN <br />B =[(Weff.)(Deff.)]^0.5 + t <br />=[5 IN x 5 IN]^0.5 + 6 <br />=11.0 IN t =6.00 IN <br />b =(L‐B)/2 (SECTION 1922.4.8) ==>f'c =3,000 PSI <br />=(26.3 IN ‐ 11 IN)/2 <br />=7.7 IN <br />Mconc =(w)(b^2)/2 = [(1.0)(fsoil)(b^2)]/[144 (IN^2/FT^2) x 2] <br />=[1.0 x 1000 PSI x (7.65 IN)^2]/[144 (IN^2/FT^2) x 2] <br />=203 IN‐LB <br />Sconc =1 IN x (t^2)/6 fsoil =1,000 PSF <br />=1 IN x (6 IN)^2/6 <br />=6.00 IN^3 (SECTION 1909.3.5) ==> <br />Fconc =5 x Ø x f'c^0.5 Ø=0.55 <br />=5 x 0.55 x (3000 PSI)^0.5 <br />=150.6 PSI <br />fb/Fb =Mconc/[(Sconc)(Fconc)] <br />=203.36 IN‐LB/[(6 IN^3)(150.62 PSI)] <br />= 1.0  OK <br /> Plate: <br />L <br />t <br />b B <br />MATERIAL HANDLING ENGINEERING <br />TEL: (909) 869‐0989 <br />1130 E. CYPRESS STREET, COVINA, CA 91724 <br />INC. <br />SEIZMIC <br />3421 W Segerstrom Ave - <br />10111647610/31/2023