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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 =18.52%61.74% <br />1483 # 445 # <br />0 # 0 # <br />1483 # 445 # <br />9.57% 10.51% 6.93% <br />275 # <br />130 psf 0.25 <br />144 psf 210 psf 139 psf <br />1500 psf 2000 psf 2000 psf <br />0.00 ft 0.26 ft 0.50 ft <br />4.00 ft 4.00 ft 4.00 ft <br />2967 # 3114 # 1633 # <br />0 ft-# 821 ft-# 821 ft-# <br />0.00 ft <br />1500 psf <br />2000 psf <br />100 psf/ft <br />150 psf/ft <br />5.17 ft <br />4.00 ft <br />0.67 ft <br />147 # 3560 ft-# <br />0.0 ft 31.34% <br />2067 # <br />821 ft-# <br />City of Santa Ana Corp Yard <br />26035 <br />5/1/2026 <br />AX.2 <br />900 # 1116 ft-# <br />20 of 32