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MONTE CLARK ENGINEERING Title: Job# 53 WAGON TRAIL Dsgnr: Date: 11:31AM, 30 JUN 04 COLUMBUS, MONTANA 59019 Description 1-888-280-6840 Scope mce@montana.com Rev: 560100 User:Kw-0602045,Ver 5.6.1,25-Oct-2002 Cantilevered Retaining Wall Design Page 1 (c)1983-2002 ENERCALC Engineering Software c\ec55\o'shaughnessy.ecw:Calculations Description Pool walls Criteria Soil Data Footing Strengths & Dimensions Retained Height = 6.00 ft Allow Soil Bearing = 2,000.0 psf fc = 3,000 psi Fy = 60,000 psi Wall height above soil = 1.00 ft Equivalent Fluid Pressure Method Min.As % = 0.0014 Heel Active Pressure - 45.0 Toe Width = 2.00 ft Slope Behind Wall = 0.00: 1 Toe Active Pressure = 0.0 _ Heel Width - 2.00 Height of Soil over Toe = 0.00 in Passive Pressure = 250.0 Total Footing Width = 4.00 Soil Density = 110.00 pcf Water height over heel = 0.0 ft - Footing Thickness - 12.00 in FootingllSoil Friction = 0.300 = Wind on Stem = 0.0 psf Soil height to ignore Key Width 0.00 in Key Depth = 0.00 in for passive pressure = 0.00 in Key Distance from Toe = 0.00 ft Cover @ Top = 3.00 in @ Btm.= 3.00 in Design Summary Stem Construction Top Stem Stem OK Total Bearing Load = 2,399 lbs Design height ft= 0.00 ...resultant ecc. = 3.45 in Wall Material Above"Ht" = Concrete = Soil Pressure @Toe = 858 psf OK Thickness 8.00Rebar Size = # 4 Soil Pressure @ Heel = 341 psf OK Rebar Spacing = 12.00 Soil Pressure Less Than Allowable e Allowable = psf Rebar Placed at = Edge Design Data - ACI Factored @ Toe = 1,080 psf esig +fa = 0.506 ACI Factored @ Heel = 430 psf fb/FTotal Force @Section lbs= 1,377.0 Footing Shear @Toe = 9.7 psi OK Moment....Actual ft-#= 2,754.0 Footing Shear @ Heel = 18.9 psi OK Moment.....Allowable = 5,448.0 Allowable = 93.1 psi Shear.....Actual psi= 18.4 Wall Stability Ratios Shear.....Allowable psi= 93.1 Overturning = 2.60 OK Sliding = 0.77 UNSTABLE! Bar Develop ABOVE Ht. in= 17.09 Sliding Calcs (Vertical Component Used) Bar Lap/Hook BELOW Ht. in= 6.00 Lateral Sliding Force 1,102.5 lbs Wall Weight = 96.7 less 100%Passive Force= - 125.0 lbs Rebar Depth 'd' in= 6.25 less 100%Friction Force= - 719.7 lbs Masonry Data - - Added Force Req'd = 257.8 lbs NG fm psi= for 1.5 : 1 Stability = 809.0 lbs NG Fs psi=Solid Grouting = Footing Design Results Special Inspection Modular Ratio'n' - Toe Heel Short Term Factor = Factored Pressure = 1,080 430 psf Equiv. Solid Thick. _ Mu':Upward = 1,943 0 ft-# Masonry Block Type= Mu;: Downward = 420 1,557 ft-# Concrete Data --- -- --- - - ----- - Mu: Design = 1,523 1,557 ft-# fc psi= 3,000.0 Actual 1-Way Shear = 9.69 18.86 psi Fy psi= 60,000.0 Allow 1-Way Shear = 93.11 93.11 psi Other Acceptable Sizes&Spacings Toe Reinforcing = None Spec'd Toe: Heel Reinforcing = None Spec'd Heel: Key Reinforcing = None Spec'd Key: