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Project: <br />Job #: <br />Date: <br />Concrete Equipment Pad Foundation Design: <br />Location: <br />Service Loads: Overturning Stability Check: <br />PDL =Superimposed weight of equipment MOT == M E/W + P E/W x (B/2 ±e p ) <br />PE/W =0.6W or 0.7E; up or down Mr == 0.6 (PDL x [B/2 ± ep]+ Po x B/2) <br />eP =Eccentricity of vertical loads D/C = <br />Po =self-weight of pad <br />ME/W =0.6W or 0.7E <br />Pad Dimensions: <br />L =Length <br />B =Width <br />t =Thickness <br />D =Embedded Depth <br />Allowable Soil Pressures <br />σa1 =For sustained loads <br />σa2 =For short-term loads (wind, seismic) <br />σLB =Lateral bearing used w/ Cohesion <br />σLB =Lateral bearing used w/ Friction <br />Demand/Capacity Checks: <br />DL Only D + 0.6W/0.7E 0.6D + 0.6W/0.7E <br />P = <br />M = <br />e = <br />Lb = <br />σ = <br />σa = <br />D/C = <br />Sliding: <br />VE/W =0.6W or 0.7E <br />σc =cohesion Cf =coefficient of friction <br />Vr, sliding == σc x LB Vr, sliding == Cf x 0.6(PDL + Po) <br />Vr, lat brg == σLB x B x D2 /2 Vr, lat brg == σLB x B x D2 /2 <br />Vr, total =Vr, total = <br />D/C = D/C =24.64%82.12% <br />1666 # 500 # <br />0 # 0 # <br />1666 # 500 # <br />12.83% 15.46% 10.10% <br />410 # <br />130 psf 0.25 <br />192 psf 309 psf 202 psf <br />1500 psf 2000 psf 2000 psf <br />0.00 ft 0.33 ft 0.68 ft <br />4.00 ft 4.00 ft 3.97 ft <br />3332 # 3594 # 1737 # <br />0 ft-# 1174 ft-# 1174 ft-# <br />0.00 ft <br />1500 psf <br />2000 psf <br />100 psf/ft <br />150 psf/ft <br />4.33 ft <br />4.00 ft <br />0.67 ft <br />262 # 3998 ft-# <br />0.0 ft 42.48% <br />1732 # <br />1174 ft-# <br />City of Santa Ana Corp Yard <br />26035 <br />5/1/2026 <br />AX.3 <br />1600 # 1698 ft-# <br />24 of 32 <br />OVERALL SLAB DIM = 5.167 x 2 + 4.33 = 14.667' <br />SPECIFIED PAD = 15'-0" x 4'-0" :: OK