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LC Designs <br />2205 E Dory St <br />Goddard, KS 67052 <br />www.lcdesigns.us <br />Project Job Ref. <br />Section Sheet no./rev. <br /> 1 <br />Calc. by <br />L <br />Date <br />1/14/2025 <br />Chk'd by Date App'd by Date <br />SLAB ON GROUND (ACI 360R) <br />In accordance with Guide to Design of Slab-on-Ground per ACI 360R-10 <br />Tedds calculation version 1.0.03 <br />Design summary <br />Description Unit Provided Required Utilization Result <br />Slab thickness in 14 12.26 0.876 PASS <br />Reinforcement in2 / ft 1.2 0.84 0.698 PASS <br />14 <br /> <br />i <br />n <br />Slab foundation-refer to Section 4.1 of ACI 360R <br />#7@6" each way <br />Design method <br />Design method publisher;Portland Cement Association <br />Materials and site properties <br />Slab thickness;h = 14 in <br />Specified compressive strength of concrete;f'c = 6000 psi <br />Subgrade modulus;k = 100 lb/in3 <br />Loading details <br />Load location;Interior <br />Post load;Pp = 20 kips <br />Safety factor;FS = 2 <br />Plate contact area per post;Aplate = 80 in2 <br />Post specifications <br />Long spacing;y = 42 in <br />Short spacing;x = 40 in <br />42 <br /> <br />i <br />n <br />40 in <br />Pp /2 Pp Pp /2 Pp Pp <br />Slab thickness design <br />Modulus of rupture of concrete;fr = 9  (f'c  1 psi) = 697.1 psi <br />Concrete working stress;ft_allow = fr / FS = 348.6 psi <br />Slab stress / 1000 lb axle load;ft = ft_allow / (Pp / 1 kips) = 17.4 psi <br />515 EAST DRYER ROAD, SANTA ANA, CA 92707 <br />TRANSFORMER PAD