Laserfiche WebLink
2. Equipment Concrete Pad Design (2024 IBC) <br />Foundation for Two Charging Posts <br />Material Properties: <br />fc' =2.5 ksi (= Concrete Compressive Stress) <br />c =150 pcf (= Concrete Unit Weight) <br />Concrete Pad Dimension: <br />B =2.0 ft <br />L =9.0 ft <br />t = 1.50 ft 18"pad <br />s =0.0 ft, Eccentricity <br />A = 18.0 ft2 <br />Wc = 4,050 lbs <br />Stability Check :(in Short Direction) <br />Equipment Weight, We =396 lbs 0.7EQ = 415 lbs COG = 4.3 <br />Total Vertical Load, Q = 4,446 lbs 0.6WL = 462 lbs <br />MR =0.6Wc x (B/2) + 0.6We x (B/2-s)MOT =0.6 x V x COG <br />=2.7 kips-ft =2.6 kips-ft <br />FS =MR/ MOT <br />=1.01 > 1.0 (O.K) <br />Bearing Pressure Check: <br />qallow =1,500 psf <br />e =MOT / Q =0.6 ft > B/6 <br />qmax =2Q/3L(B/2-e)qmin =Q/A (1-6e/B) <br />=812 psf =0 psf <br />qmax =812 psf < 1,500 psf (O.K) <br />Sliding Check : <br />Vmax=462 lbs f =0.35 <br />Vresisting=0.6Q x f <br />=934 lbs >462 lbs (O.K) <br />As min. Check :min =0.0018 (for fy = 60 ksi) <br />try #5 @ 16 inch O.C. T&B <br /> As,req =0.52 in < As =0.62 in (O.K) <br />L <br />B <br />t <br />64