HomeMy WebLinkAboutPD 2023-0034; 7500 CADENCIA ST; STRUCTURAL CALCULATIONS GUINN RESIDENCE; 2025-02-04STRUCTURAL CALCULATIONS
Guinn Residence
7500 Cadencia St, Carlsbad, CA 92009
02-04-2025 : Project # 22-381
Table of Contents
Design Criteria & Loads ..................................................
Foundation Analysis & Design .....................................1
2-41
9474 Kearny Villa Rd, Suite 215, San Diego, CA 92126
Evan Coles, P.E. (858) 346-7734
evan@simplystrongeng.com
9474 Kearny Villa Rd, Suite 215, San Diego, CA 92126
Evan Coles, P.E. (858) 376-7734
evan@solidformseng.com
R
EGISTERE D P R O F ESSIONAL E
N
G
I
N
EER
STATE OF C A L I F O R NIACIVIL
C 77258
EXP. 06/30/25
EV A N A . COL
E
S
MICHAEL BAKER INTERNATIONALSHOP DRAWING REVIEW
Proj No Shop Dwg. No139000 Ocean Condominiums 4th
Date By10/05/2020 ARL/CS
MAKE CORRECTIONS NOTEDREVISE AND RESUBMITREVISE AND RESUBMITREJECTED
Review is only for general conformance with the design concept of the project and general compliance with the information included in this Contract Document(s). Any action shown is subject to the requirements of the drawings and specificatons. Contractor is responsible for: construction, coordination of his/her work with that of other trades, and performing the work in a safe and satisfactory manner.
NO EXCEPTIONS TAKEN SUBMIT SPECIFIED ITEM
139000
03/04/2025
7500 Cedenica St
JDA
X
Design Criteria
Building Code: 2018 IBC/2019 CBC - ASCE / SEI 7-16
Concrete:ACI 318-14 [f'c = 2500 psi - No Special Inspection Req.'d (U.N.O.)]
Masonry: TMS 402-16/ACI 530-16 [Normal Wt.-ASTM C90-f'm=1500 psi-Spec. Insp. Req.'d]
Mortar:ASTM C270 [f'c = 1800 psi Type S]
Grout:ASTM C476 [f'c = 2000 psi]
Reinforcing Steel: ASTM A615 [Fy = 40 ksi For #4 Bars & Smaller / Fy = 60 ksi For #5 Bars & Larger]
Structural Steel:AISC 360-16, 15th Edition
W Shapes (I Beams): ASTM A992, High Strength, Low Alloy, Fy = 50 ksi
HSS Shapes (Rect.): ASTM A500, Carbon Steel, Fy = 46 ksi
HSS Shapes (Round): ASTM A500, Carbon Steel, Fy = 42 ksi
Pipe Shapes: ASTM A53, Grade B, Carbon Steel, Fy = 35 ksi
All other steel: ASTM A36, Fy = 36 ksi
Bolting: A307 / A325-N / A490-N (Single Plate Shear Conn.)
Welding: E70 Series Typ. (E90 Series for A615 Grade 60 Reinforcing Bars)
Shop welding to be done in an approved fabricator's shop.
Field welding to have continuous Special Inspection.
Wood: NDS-2018
Soil: Geotechnical Report By: NOVA Services, Inc.
Allowable Bearing Pressure =5000 psf
Lateral Bearing Pressure =250 psf/ft
Active Pressure =35 psf/ft
At-rest Pressure =65 psf/ft
Coefficient of Friction =0.35 (Table 1806.2)
Lateral Seismic Pressure =11H
Project #:
Date:
Load 1 psf Load 2 psf Int. Wall psf
DL Concrete Tile Roof 10.0 DL Carpet & Pad Floor 4.0 DL Drywall 5.0
Plywood 1.5 Plywood 1.5 2x4 Studs @ 16"o.c. 1.0
Joists 3.5 Joists 3.5 Misc. 1.0
Insulation 1.5 Insulation 1.5 Other
Drywall 2.5 Drywall 2.5 Total Load 7
Electrical/Mech./Misc. 1.0 Elec./Mech./Misc. 1.0
Other 0.0 Other 0.0 Ext. Wall 1 psf
Total DL 20 Total DL 14 DL Stucco 10.0
LL Residential Roof 20 LL Residential Floor 40 2x4 Studs @ 16"o.c. 1.0
Total Load 40 Total Load 54 Drywall 2.5
Insulation 1.5
Misc. 1.0
Load 3 Load 4 Other
Total Load 16
Ext. Wall 2
Design Loads
6/5/2018, 12/20/202
No. 2018049
Page 1 of 41
02/04/25
Cantilevered Retaining Wall
LIC# : KW-06015083, Build:20.25.02.03 Solid Forms Engineering (c) ENERCALC, LLC 1982-2025
DESCRIPTION:2'-8"
Project File: 4in HEEL - CANT - 2 to 1 slope.ec6
Code References
Calculations per IBC 2021, ACI 318-19, TMS 402-16
2.67
0.67
2.00
8.00
5,000.0
35.0
0.0
250.0
Criteria Soil Data
Retained Height =ft
Wall height above soil =ft Active Heel Pressure =psf/ftSlope Behind Wall
Height of Soil over Toe in
Water table above
=ft =
=
110.00=pcf
=
Soil Density, Heel
=Passive Pressure =psf/ft
Allow Soil Bearing =psf
Soil Density, Toe 110.00 pcf
Footing||Soil Friction =0.350
Soil height to ignorefor passive pressure =0.00 in
Equivalent Fluid Pressure Method
bottom of footing
Surcharge Loads Adjacent Footing Load
Load Type
40.0 Lateral Load =0.0 #/ft
40.0
0.0
0.00.0
Axial Load Applied to Stem
Wall to Ftg CL Dist =0.00 ft
Wind on Exposed Stem psf0.0=
Lateral Load Applied to Stem
Surcharge Over Heel =psf Adjacent Footing Load =0.0 lbs
Axial Dead Load
(Service Level)
=lbs
Footing Type Spread Footing
Surcharge Over Toe Footing Width =0.00 ft...Height to Top =0.00 ft Eccentricity =0.00 in...Height to Bottom =0.00 ft
NOT Used To Resist Sliding & Overturning
NOT Used for Sliding & Overturning
==0.0 ft
Axial Live Load =
Base Above/Below Soil
lbs
=
Axial Load Eccentricity ==Poisson's Ratio 0.300
at Back of Wall
in (Strength Level)
Wind (W)=
Detail #3
Page 2 of 41
02/04/25
Cantilevered Retaining Wall
LIC# : KW-06015083, Build:20.25.02.03 Solid Forms Engineering (c) ENERCALC, LLC 1982-2025
DESCRIPTION:2'-8"
Project File: 4in HEEL - CANT - 2 to 1 slope.ec6
Design Summary
Wall Stability RatiosOverturning =1.76
Global Stability =6.03
OK
Sliding =2.35 OK
Total Bearing Load =1,075 lbs...resultant ecc.=6.03 in
Eccentricity outside middle thirdSoil Pressure @ Toe =1,212 psf OK
Soil Pressure @ Heel =0 psf OK
Allowable =5,000 psfSoil Pressure Less Than Allowable
ACI Factored @ Toe =1,796 psf
ACI Factored @ Heel =0 psf
Footing Shear @ Toe =3.9 psi OK
Footing Shear @ Heel =1.2 psi OK
Allowable =58.1 psi
Sliding Calcs
Lateral Sliding Force =384.3 lbs
less 100% Passive Force
less 100% Friction Force
Added Force Req'd
....for 1.5 Stability =
0.0=
316.6
586.8
==
0.0
-
lbs
lbs
lbs OK
lbs OK
-
Masonry Block Type =
Stem Construction Bottom
Stem OK
Shear.....Actual
Design Height Above Ftg =0.00ft
Wall Material Above "Ht"=Masonry
Thickness =8.00
Rebar Size =#4
Rebar Spacing =16.00
Rebar Placed at =EdgeDesign Data
fb/FB + fa/Fa =0.131
Total Force @ Section
=158.7lbs
Moment....Actual
=156.4ft-#
Moment.....Allowable =1,193.2
=1.7psi
Shear.....Allowable =44.5psi
Wall Weight =84.0psf
Rebar Depth 'd'=5.25in
Masonry Data
f'm =1,500psiFs=psi 20,000Solid Grouting =Yes
Modular Ratio 'n'=21.48
Equiv. Solid Thick.=7.63in
Concrete Dataf'c =psi
Fy =
Masonry Design Method ASD=
Load Factors
Building Code
Dead Load 1.200
Live Load 1.600
Earth, H 1.600
Wind, W 1.600
Seismic, E 1.000 psi
Service Level
=lbsStrength Level
Service Level
Strength Level =ft-#
Service Level
Strength Level =psi
Design Method =ASD SD SD
Vertical component of active lateral soil pressure IS NOT
considered in the calculation of soil bearing pressures.
Anet (Masonry)=91.50in2
Detail #3
Page 3 of 41
02/04/25
Cantilevered Retaining Wall
LIC# : KW-06015083, Build:20.25.02.03 Solid Forms Engineering (c) ENERCALC, LLC 1982-2025
DESCRIPTION:2'-8"
Project File: 4in HEEL - CANT - 2 to 1 slope.ec6
1.00
1.00
18.00
Footing Torsion, Tu =
=
ft-lbs0.00
Min. As %
Footing Allow. Torsion, ij Tn
0.0018
=ft-lbs
Footing Data
If torsion exceeds allowable, provide
f'c
0.00
=1,500psi
Toe Width =ft
Heel Width =
Footing Thickness =in
2.00=
Cover @ Top =2.00 in@ Btm.=3.00 in
Total Footing Width
=150.00 pcfFooting Concrete DensityFy =60,000 psi
Footing Design Results
Key:
=
No key defined
Factored Pressure
Mu' : Upward
Mu' : Downward
Mu: Design
Actual 1-Way Shear
Allow 1-Way Shear
Toe:phiMn = phi*5*lambda*sqrt(fc)*Sm
phiMn = phi*5*lambda*sqrt(fc)*Sm
=None Spec'd
=
=
=
=
=
1,796
698
281
416
3.87
30.98
Heel:
0
0
78
78
1.21
30.98
HeelToe
psf
ft-#
ft-#
ft-#
psi
psi
Heel Reinforcing =None Spec'd
Other Acceptable Sizes & Spacings
Key Reinforcing
Toe Reinforcing =None Spec'd
Min footing T&S reinf Area
Min footing T&S reinf Area per foot
If one layer of horizontal bars:
0.78
0.39
#4@ 6.17 in
#5@ 9.57 in
#6@ 13.58 in
in2
in2 /ft
If two layers of horizontal bars:
#4@ 12.35 in
#5@ 19.14 in
#6@ 27.16 in
supplemental design for footing torsion.
ij Mn 4,9574,957=ft-#
Detail #3
Page 4 of 41
02/04/25
Cantilevered Retaining Wall
LIC# : KW-06015083, Build:20.25.02.03 Solid Forms Engineering (c) ENERCALC, LLC 1982-2025
DESCRIPTION:2'-8"
Project File: 4in HEEL - CANT - 2 to 1 slope.ec6
Summary of Overturning & Resisting Forces & Moments
.....RESISTING..........OVERTURNING.....Force Distance Moment Distance Moment
Item
Force
ft-#lbs ftft ft-#lbs
Sloped Soil Over Heel 3.1 1.89 5.8
119.72.1755.2=Surcharge over Heel
=
Surcharge Over Heel
=
=
Adjacent Footing Load
=Adjacent Footing Load
Axial Dead Load on Stem =
=* Axial Live Load on Stem
Soil Over Toe
Surcharge Over Toe
Surcharge Over Toe
Load @ Stem Above Soil
=
=
=
73.3 0.50 36.7=
=
=
Stem Weight(s)
=
280.3 1.33 373.7
Earth @ Stem Transitions
=Footing Weight
=
450.0 1.00 450.0
Key Weight
=
Added Lateral Load
lbs
=595.4
Vert. Component
Total
=
904.6 1,045.7
* Axial live load NOT included in total displayed, or used for overturningresistance, but is included for soil pressure calculation.
Total =R.M.
=384.3 O.T.M.
=
Resisting/Overturning Ratio =1.76
Vertical Loads used for Soil Pressure =1,074.9 lbs
Vertical component of active lateral soil pressure IS NOT considered in
the calculation of Sliding Resistance.
Vertical component of active lateral soil pressure IS NOT considered in
the calculation of Overturning Resistance.
Soil Over HL (ab. water tbl)
Soil Over HL (bel. water tbl)
97.9 1.83
1.83
179.5
179.5
Water Table
Buoyant Force =
HL Act Pres (ab water tbl)
HL Act Pres (be water tbl)
329.1 1.45 475.8
Hydrostatic Force
Tilt
Horizontal Deflection at Top of Wall due to settlement of soil
(Deflection due to wall bending not considered)
Soil Spring Reaction Modulus 250.0 pci
Horizontal Defl @ Top of Wall (approximate only)0.056 in
The above calculation is not valid if the heel soil bearing pressure exceeds that of the toe,
because the wall would then tend to rotate into the retained soil.
Detail #3
Page 5 of 41
02/04/25
Cantilevered Retaining Wall
LIC# : KW-06015083, Build:20.25.02.03 Solid Forms Engineering (c) ENERCALC, LLC 1982-2025
DESCRIPTION:3'-8"
Project File: 4in HEEL - CANT - 2 to 1 slope.ec6
Code References
Calculations per IBC 2021, ACI 318-19, TMS 402-16
3.67
0.67
2.00
8.00
5,000.0
35.0
0.0
250.0
Criteria Soil Data
Retained Height =ft
Wall height above soil =ft Active Heel Pressure =psf/ftSlope Behind Wall
Height of Soil over Toe in
Water table above
=ft =
=
110.00=pcf
=
Soil Density, Heel
=Passive Pressure =psf/ft
Allow Soil Bearing =psf
Soil Density, Toe 110.00 pcf
Footing||Soil Friction =0.350
Soil height to ignorefor passive pressure =0.00 in
Equivalent Fluid Pressure Method
bottom of footing
Surcharge Loads Adjacent Footing Load
Load Type
40.0 Lateral Load =0.0 #/ft
40.0
0.0
0.00.0
Axial Load Applied to Stem
Wall to Ftg CL Dist =0.00 ft
Wind on Exposed Stem psf0.0=
Lateral Load Applied to Stem
Surcharge Over Heel =psf Adjacent Footing Load =0.0 lbs
Axial Dead Load
(Service Level)
=lbs
Footing Type Spread Footing
Surcharge Over Toe Footing Width =0.00 ft...Height to Top =0.00 ft Eccentricity =0.00 in...Height to Bottom =0.00 ft
NOT Used To Resist Sliding & Overturning
NOT Used for Sliding & Overturning
==0.0 ft
Axial Live Load =
Base Above/Below Soil
lbs
=
Axial Load Eccentricity ==Poisson's Ratio 0.300
at Back of Wall
in (Strength Level)
Wind (W)=
Detail #3
Page 6 of 41
02/04/25
Cantilevered Retaining Wall
LIC# : KW-06015083, Build:20.25.02.03 Solid Forms Engineering (c) ENERCALC, LLC 1982-2025
DESCRIPTION:3'-8"
Project File: 4in HEEL - CANT - 2 to 1 slope.ec6
Design Summary
Wall Stability RatiosOverturning =1.73
Global Stability =3.98
OK
Sliding =2.54 OK
Total Bearing Load =1,499 lbs...resultant ecc.=7.41 in
Eccentricity outside middle thirdSoil Pressure @ Toe =1,309 psf OK
Soil Pressure @ Heel =0 psf OK
Allowable =5,000 psfSoil Pressure Less Than Allowable
ACI Factored @ Toe =1,940 psf
ACI Factored @ Heel =0 psf
Footing Shear @ Toe =5.6 psi OK
Footing Shear @ Heel =1.4 psi OK
Allowable =58.1 psi
Sliding Calcs
Lateral Sliding Force =566.3 lbs
less 100% Passive Force
less 100% Friction Force
Added Force Req'd
....for 1.5 Stability =
0.0=
434.4
1,003.5
==
0.0
-
lbs
lbs
lbs OK
lbs OK
-
Masonry Block Type =
Stem Construction Bottom
Stem OK
Shear.....Actual
Design Height Above Ftg =0.00ft
Wall Material Above "Ht"=Masonry
Thickness =8.00
Rebar Size =#4
Rebar Spacing =16.00
Rebar Placed at =EdgeDesign Data
fb/FB + fa/Fa =0.313
Total Force @ Section
=282.4lbs
Moment....Actual
=374.1ft-#
Moment.....Allowable =1,193.2
=3.1psi
Shear.....Allowable =44.8psi
Wall Weight =84.0psf
Rebar Depth 'd'=5.25in
Masonry Data
f'm =1,500psiFs=psi 20,000Solid Grouting =Yes
Modular Ratio 'n'=21.48
Equiv. Solid Thick.=7.63in
Concrete Dataf'c =psi
Fy =
Masonry Design Method ASD=
Load Factors
Building Code
Dead Load 1.200
Live Load 1.600
Earth, H 1.600
Wind, W 1.600
Seismic, E 1.000 psi
Service Level
=lbsStrength Level
Service Level
Strength Level =ft-#
Service Level
Strength Level =psi
Design Method =ASD SD SD
Vertical component of active lateral soil pressure IS NOT
considered in the calculation of soil bearing pressures.
Anet (Masonry)=91.50in2
Detail #3
Page 7 of 41
02/04/25
Cantilevered Retaining Wall
LIC# : KW-06015083, Build:20.25.02.03 Solid Forms Engineering (c) ENERCALC, LLC 1982-2025
DESCRIPTION:3'-8"
Project File: 4in HEEL - CANT - 2 to 1 slope.ec6
1.50
1.00
18.00
Footing Torsion, Tu =
=
ft-lbs0.00
Min. As %
Footing Allow. Torsion, ij Tn
0.0018
=ft-lbs
Footing Data
If torsion exceeds allowable, provide
f'c
0.00
=1,500psi
Toe Width =ft
Heel Width =
Key Distance from Toe
Key Depth
Key Width =in
=in
=
8.00
8.00
0.83 ft
Footing Thickness =in
2.50=
Cover @ Top =2.00 in@ Btm.=3.00 in
Total Footing Width
=150.00 pcfFooting Concrete DensityFy =60,000 psi
Footing Design Results
Key:
=
phiMn = phi*5*lambda*sqrt(fc)*Sm
Factored Pressure
Mu' : Upward
Mu' : Downward
Mu: Design
Actual 1-Way Shear
Allow 1-Way Shear
Toe:phiMn = phi*5*lambda*sqrt(fc)*Sm
phiMn = phi*5*lambda*sqrt(fc)*Sm
=None Spec'd
=
=
=
=
=
1,940
1,607
580
1,027
5.64
30.98
Heel:
0
0
92
92
1.44
30.98
HeelToe
psf
ft-#
ft-#
ft-#
psi
psi
Heel Reinforcing =None Spec'd
Other Acceptable Sizes & Spacings
Key Reinforcing
Toe Reinforcing =None Spec'd
Min footing T&S reinf Area
Min footing T&S reinf Area per foot
If one layer of horizontal bars:
0.97
0.39
#4@ 6.17 in
#5@ 9.57 in
#6@ 13.58 in
in2
in2 /ft
If two layers of horizontal bars:
#4@ 12.35 in
#5@ 19.14 in
#6@ 27.16 in
supplemental design for footing torsion.
ij Mn 4,9574,957=ft-#
Key
378
13.18
30.98
697
Detail #3
Page 8 of 41
02/04/25
Cantilevered Retaining Wall
LIC# : KW-06015083, Build:20.25.02.03 Solid Forms Engineering (c) ENERCALC, LLC 1982-2025
DESCRIPTION:3'-8"
Project File: 4in HEEL - CANT - 2 to 1 slope.ec6
Summary of Overturning & Resisting Forces & Moments
.....RESISTING..........OVERTURNING.....Force Distance Moment Distance Moment
Item
Force
ft-#lbs ftft ft-#lbs
Sloped Soil Over Heel 3.1 2.39 7.3
181.22.6767.9=Surcharge over Heel
=
Surcharge Over Heel
=
=
Adjacent Footing Load
=Adjacent Footing Load
Axial Dead Load on Stem =
=* Axial Live Load on Stem
Soil Over Toe
Surcharge Over Toe
Surcharge Over Toe
Load @ Stem Above Soil
=
=
=
110.0 0.75 82.5=
=
=
Stem Weight(s)
=
364.3 1.83 667.9
Earth @ Stem Transitions
=Footing Weight
=
562.5 1.25 703.1
Key Weight
=
66.7 1.17 77.8
Added Lateral Load
lbs
=1,067.8
Vert. Component
Total
=
1,241.1 1,852.6
* Axial live load NOT included in total displayed, or used for overturningresistance, but is included for soil pressure calculation.
Total =R.M.
=566.3 O.T.M.
=
Resisting/Overturning Ratio =1.73
Vertical Loads used for Soil Pressure =1,498.9 lbs
Vertical component of active lateral soil pressure IS NOT considered in
the calculation of Sliding Resistance.
Vertical component of active lateral soil pressure IS NOT considered in
the calculation of Overturning Resistance.
Soil Over HL (ab. water tbl)
Soil Over HL (bel. water tbl)
134.6 2.33
2.33
314.0
314.0
Water Table
Buoyant Force =
HL Act Pres (ab water tbl)
HL Act Pres (be water tbl)
498.4 1.78 886.6
Hydrostatic Force
Tilt
Horizontal Deflection at Top of Wall due to settlement of soil
(Deflection due to wall bending not considered)
Soil Spring Reaction Modulus 250.0 pci
Horizontal Defl @ Top of Wall (approximate only)0.063 in
The above calculation is not valid if the heel soil bearing pressure exceeds that of the toe,
because the wall would then tend to rotate into the retained soil.
Detail #3
Page 9 of 41
02/04/25
Cantilevered Retaining Wall
LIC# : KW-06015083, Build:20.25.02.03 Solid Forms Engineering (c) ENERCALC, LLC 1982-2025
DESCRIPTION:4'-8"
Project File: 4in HEEL - CANT - 2 to 1 slope.ec6
Code References
Calculations per IBC 2021, ACI 318-19, TMS 402-16
4.67
0.67
2.00
8.00
5,000.0
35.0
0.0
250.0
Criteria Soil Data
Retained Height =ft
Wall height above soil =ft Active Heel Pressure =psf/ftSlope Behind Wall
Height of Soil over Toe in
Water table above
=ft =
=
110.00=pcf
=
Soil Density, Heel
=Passive Pressure =psf/ft
Allow Soil Bearing =psf
Soil Density, Toe 110.00 pcf
Footing||Soil Friction =0.350
Soil height to ignorefor passive pressure =0.00 in
Equivalent Fluid Pressure Method
bottom of footing
Surcharge Loads Adjacent Footing Load
Load Type
40.0 Lateral Load =0.0 #/ft
40.0
0.0
0.00.0
Axial Load Applied to Stem
Wall to Ftg CL Dist =0.00 ft
Wind on Exposed Stem psf0.0=
Lateral Load Applied to Stem
Surcharge Over Heel =psf Adjacent Footing Load =0.0 lbs
Axial Dead Load
(Service Level)
=lbs
Footing Type Spread Footing
Surcharge Over Toe Footing Width =0.00 ft...Height to Top =0.00 ft Eccentricity =0.00 in...Height to Bottom =0.00 ft
NOT Used To Resist Sliding & Overturning
NOT Used for Sliding & Overturning
==0.0 ft
Axial Live Load =
Base Above/Below Soil
lbs
=
Axial Load Eccentricity ==Poisson's Ratio 0.300
at Back of Wall
in (Strength Level)
Wind (W)=
Detail #3
Page 10 of 41
02/04/25
Cantilevered Retaining Wall
LIC# : KW-06015083, Build:20.25.02.03 Solid Forms Engineering (c) ENERCALC, LLC 1982-2025
DESCRIPTION:4'-8"
Project File: 4in HEEL - CANT - 2 to 1 slope.ec6
Design Summary
Wall Stability RatiosOverturning =1.67
Global Stability =3.16
OK
Sliding =2.56 OK
Total Bearing Load =1,933 lbs...resultant ecc.=9.07 in
Eccentricity outside middle thirdSoil Pressure @ Toe =1,406 psf OK
Soil Pressure @ Heel =0 psf OK
Allowable =5,000 psfSoil Pressure Less Than Allowable
ACI Factored @ Toe =2,085 psf
ACI Factored @ Heel =0 psf
Footing Shear @ Toe =7.3 psi OK
Footing Shear @ Heel =1.7 psi OK
Allowable =58.1 psi
Sliding Calcs
Lateral Sliding Force =783.3 lbs
less 100% Passive Force
less 100% Friction Force
Added Force Req'd
....for 1.5 Stability =
0.0=
549.2
1,459.2
==
0.0
-
lbs
lbs
lbs OK
lbs OK
-
Masonry Block Type =
Stem Construction Bottom
Stem OK
Shear.....Actual
Design Height Above Ftg =0.00ft
Wall Material Above "Ht"=Masonry
Thickness =8.00
Rebar Size =#4
Rebar Spacing =16.00
Rebar Placed at =EdgeDesign Data
fb/FB + fa/Fa =0.614
Total Force @ Section
=441.1lbs
Moment....Actual
=732.9ft-#
Moment.....Allowable =1,193.2
=4.8psi
Shear.....Allowable =45.0psi
Wall Weight =84.0psf
Rebar Depth 'd'=5.25in
Masonry Data
f'm =1,500psiFs=psi 20,000Solid Grouting =Yes
Modular Ratio 'n'=21.48
Equiv. Solid Thick.=7.63in
Concrete Dataf'c =psi
Fy =
Masonry Design Method ASD=
Load Factors
Building Code
Dead Load 1.200
Live Load 1.600
Earth, H 1.600
Wind, W 1.600
Seismic, E 1.000 psi
Service Level
=lbsStrength Level
Service Level
Strength Level =ft-#
Service Level
Strength Level =psi
Design Method =ASD SD SD
Vertical component of active lateral soil pressure IS NOT
considered in the calculation of soil bearing pressures.
Anet (Masonry)=91.50in2
Detail #3
Page 11 of 41
02/04/25
Cantilevered Retaining Wall
LIC# : KW-06015083, Build:20.25.02.03 Solid Forms Engineering (c) ENERCALC, LLC 1982-2025
DESCRIPTION:4'-8"
Project File: 4in HEEL - CANT - 2 to 1 slope.ec6
2.00
1.00
18.00
Footing Torsion, Tu =
=
ft-lbs0.00
Min. As %
Footing Allow. Torsion, ij Tn
0.0018
=ft-lbs
Footing Data
If torsion exceeds allowable, provide
f'c
0.00
=1,500psi
Toe Width =ft
Heel Width =
Key Distance from Toe
Key Depth
Key Width =in
=in
=
8.00
15.00
1.33 ft
Footing Thickness =in
3.00=
Cover @ Top =2.00 in@ Btm.=3.00 in
Total Footing Width
=150.00 pcfFooting Concrete DensityFy =60,000 psi
Footing Design Results
Key:
=
#4@ 13.88 in, #5@ 18 in, #6@ 18 in, #7@ 18 in, #8@ 18 in, #9@ 18 in, #10@
18 in
Factored Pressure
Mu' : Upward
Mu' : Downward
Mu: Design
Actual 1-Way Shear
Allow 1-Way Shear
Toe:phiMn = phi*5*lambda*sqrt(fc)*Sm
phiMn = phi*5*lambda*sqrt(fc)*Sm
=# 5 @ 18.00 in
=
=
=
=
=
2,085
2,925
985
1,940
7.29
30.98
Heel:
0
0
107
107
1.67
30.98
HeelToe
psf
ft-#
ft-#
ft-#
psi
psi
Heel Reinforcing =None Spec'd
Other Acceptable Sizes & Spacings
Key Reinforcing
Toe Reinforcing =None Spec'd
Min footing T&S reinf Area
Min footing T&S reinf Area per foot
If one layer of horizontal bars:
1.17
0.39
#4@ 6.17 in
#5@ 9.57 in
#6@ 13.58 in
in2
in2 /ft
If two layers of horizontal bars:
#4@ 12.35 in
#5@ 19.14 in
#6@ 27.16 in
supplemental design for footing torsion.
ij Mn 4,9574,957=ft-#
Key
1,230
36.94
37.81
3,344
Detail #3
Page 12 of 41
02/04/25
Cantilevered Retaining Wall
LIC# : KW-06015083, Build:20.25.02.03 Solid Forms Engineering (c) ENERCALC, LLC 1982-2025
DESCRIPTION:4'-8"
Project File: 4in HEEL - CANT - 2 to 1 slope.ec6
Summary of Overturning & Resisting Forces & Moments
.....RESISTING..........OVERTURNING.....Force Distance Moment Distance Moment
Item
Force
ft-#lbs ftft ft-#lbs
Sloped Soil Over Heel 3.1 2.89 8.8
255.53.1780.6=Surcharge over Heel
=
Surcharge Over Heel
=
=
Adjacent Footing Load
=Adjacent Footing Load
Axial Dead Load on Stem =
=* Axial Live Load on Stem
Soil Over Toe
Surcharge Over Toe
Surcharge Over Toe
Load @ Stem Above Soil
=
=
=
146.7 1.00 146.7=
=
=
Stem Weight(s)
=
448.3 2.33 1,046.1
Earth @ Stem Transitions
=Footing Weight
=
675.0 1.50 1,012.5
Key Weight
=
125.0 1.67 208.3
Added Lateral Load
lbs
=1,739.7
Vert. Component
Total
=
1,569.3 2,907.5
* Axial live load NOT included in total displayed, or used for overturningresistance, but is included for soil pressure calculation.
Total =R.M.
=783.3 O.T.M.
=
Resisting/Overturning Ratio =1.67
Vertical Loads used for Soil Pressure =1,932.8 lbs
Vertical component of active lateral soil pressure IS NOT considered in
the calculation of Sliding Resistance.
Vertical component of active lateral soil pressure IS NOT considered in
the calculation of Overturning Resistance.
Soil Over HL (ab. water tbl)
Soil Over HL (bel. water tbl)
171.2 2.83
2.83
485.2
485.2
Water Table
Buoyant Force =
HL Act Pres (ab water tbl)
HL Act Pres (be water tbl)
702.7 2.11 1,484.2
Hydrostatic Force
Tilt
Horizontal Deflection at Top of Wall due to settlement of soil
(Deflection due to wall bending not considered)
Soil Spring Reaction Modulus 250.0 pci
Horizontal Defl @ Top of Wall (approximate only)0.069 in
The above calculation is not valid if the heel soil bearing pressure exceeds that of the toe,
because the wall would then tend to rotate into the retained soil.
Detail #3
Page 13 of 41
02/04/25
Cantilevered Retaining Wall
LIC# : KW-06015083, Build:20.25.02.03 Solid Forms Engineering (c) ENERCALC, LLC 1982-2025
DESCRIPTION:5'-8"
Project File: 4in HEEL - CANT - 2 to 1 slope.ec6
Code References
Calculations per IBC 2021, ACI 318-19, TMS 402-16
5.67
0.67
2.00
8.00
5,000.0
35.0
0.0
250.0
Criteria Soil Data
Retained Height =ft
Wall height above soil =ft Active Heel Pressure =psf/ftSlope Behind Wall
Height of Soil over Toe in
Water table above
=ft =
=
110.00=pcf
=
Soil Density, Heel
=Passive Pressure =psf/ft
Allow Soil Bearing =psf
Soil Density, Toe 110.00 pcf
Footing||Soil Friction =0.350
Soil height to ignorefor passive pressure =0.00 in
Equivalent Fluid Pressure Method
bottom of footing
Surcharge Loads Adjacent Footing Load
Load Type
40.0 Lateral Load =0.0 #/ft
40.0
0.0
0.00.0
Axial Load Applied to Stem
Wall to Ftg CL Dist =0.00 ft
Wind on Exposed Stem psf0.0=
Lateral Load Applied to Stem
Surcharge Over Heel =psf Adjacent Footing Load =0.0 lbs
Axial Dead Load
(Service Level)
=lbs
Footing Type Spread Footing
Surcharge Over Toe psf Footing Width =0.00 ft...Height to Top =0.00 ft Eccentricity =0.00 in...Height to Bottom =0.00 ft
NOT Used To Resist Sliding & Overturning
NOT Used for Sliding & Overturning
==0.0 ft
Axial Live Load =
Base Above/Below Soil
lbs
=
Axial Load Eccentricity ==Poisson's Ratio 0.300
at Back of Wall
in (Strength Level)
Wind (W)=
Detail #3
Page 14 of 41
02/04/25
Cantilevered Retaining Wall
LIC# : KW-06015083, Build:20.25.02.03 Solid Forms Engineering (c) ENERCALC, LLC 1982-2025
DESCRIPTION:5'-8"
Project File: 4in HEEL - CANT - 2 to 1 slope.ec6
Design Summary
Wall Stability RatiosOverturning =1.63
Global Stability =2.61
OK
Sliding =2.44 OK
Total Bearing Load =2,451 lbs...resultant ecc.=10.78 in
Eccentricity outside middle thirdSoil Pressure @ Toe =1,538 psf OK
Soil Pressure @ Heel =0 psf OK
Allowable =5,000 psfSoil Pressure Less Than Allowable
ACI Factored @ Toe =2,277 psf
ACI Factored @ Heel =0 psf
Footing Shear @ Toe =10.2 psi OK
Footing Shear @ Heel =1.9 psi OK
Allowable =58.1 psi
Sliding Calcs
Lateral Sliding Force =1,035.3 lbs
less 100% Passive Force
less 100% Friction Force
Added Force Req'd
....for 1.5 Stability =
0.0=
687.4
1,836.8
==
0.0
-
lbs
lbs
lbs OK
lbs OK
-
Masonry Block Type =
Stem Construction 2nd Bottom
Stem OK Stem OK
Shear.....Actual
Design Height Above Ftg =2.50ft 0.00
Wall Material Above "Ht"=Masonry Masonry
Thickness =8.00 8.00
Rebar Size =##4 4
Rebar Spacing =16.00 8.00
Rebar Placed at =Edge EdgeDesign Data
fb/FB + fa/Fa =0.209 0.549
Total Force @ Section
=216.2 634.8lbs
Moment....Actual
=249.8 1,267.9ft-#
Moment.....Allowable =1,193.2 2,308.7ft-#
=2.4 6.9psi
Shear.....Allowable =44.6 45.3psi
Wall Weight =84.0 84.0psf
Rebar Depth 'd'=5.25in 5.25
Masonry Data
f'm =1,500 1,500psiFs=psi 20,000 20,000Solid Grouting =Yes Yes
Modular Ratio 'n'=21.48 21.48
Equiv. Solid Thick.=7.63 7.63in
Concrete Dataf'c =psi
Fy =
Masonry Design Method ASD=
Load Factors
Building Code
Dead Load 1.200
Live Load 1.600
Earth, H 1.600
Wind, W 1.600
Seismic, E 1.000 psi
Service Level
=lbsStrength Level
Service Level
Strength Level =ft-#
Service Level
Strength Level =psi
Design Method =ASD ASD SDSD
Vertical component of active lateral soil pressure IS NOT
considered in the calculation of soil bearing pressures.
Anet (Masonry)=91.50 91.50in2
Detail #3
Page 15 of 41
02/04/25
Cantilevered Retaining Wall
LIC# : KW-06015083, Build:20.25.02.03 Solid Forms Engineering (c) ENERCALC, LLC 1982-2025
DESCRIPTION:5'-8"
Project File: 4in HEEL - CANT - 2 to 1 slope.ec6
2.50
1.00
18.00
Footing Torsion, Tu =
=
ft-lbs0.00
Min. As %
Footing Allow. Torsion, ij Tn
0.0018
=ft-lbs
Footing Data
If torsion exceeds allowable, provide
f'c
0.00
=1,500psi
Toe Width =ft
Heel Width =
Key Distance from Toe
Key Depth
Key Width =in
=in
=
12.00
20.00
1.50 ft
Footing Thickness =in
3.50=
Cover @ Top =2.00 in@ Btm.=3.00 in
Total Footing Width
=150.00 pcfFooting Concrete DensityFy =60,000 psi
Footing Design Results
Key:
=
#4@ 9.25 in, #5@ 14.35 in, #6@ 18 in, #7@ 18 in, #8@ 18 in, #9@ 18 in,
#10@ 18 in
Factored Pressure
Mu' : Upward
Mu' : Downward
Mu: Design
Actual 1-Way Shear
Allow 1-Way Shear
Toe:#4@ 6.17 in, #5@ 9.56 in, #6@ 13.58 in, #7@ 18 in, #8@ 18 in, #9@ 18 in,
#10@ 18 in
phiMn = phi*5*lambda*sqrt(fc)*Sm
=# 5 @ 14.35 in
=
=
=
=
=
2,277
4,794
1,495
3,300
10.22
30.25
Heel:
0
0
122
122
1.90
30.98
HeelToe
psf
ft-#
ft-#
ft-#
psi
psi
Heel Reinforcing =None Spec'd
Other Acceptable Sizes & Spacings
Key Reinforcing
Toe Reinforcing =# 5 @ 9.57 in
Min footing T&S reinf Area
Min footing T&S reinf Area per foot
If one layer of horizontal bars:
1.36
0.39
#4@ 6.17 in
#5@ 9.57 in
#6@ 13.58 in
in2
in2 /ft
If two layers of horizontal bars:
#4@ 12.35 in
#5@ 19.14 in
#6@ 27.16 in
supplemental design for footing torsion.
ij Mn 4,95724,363=ft-#
Key
2,392
35.51
35.61
6,406
Detail #3
Page 16 of 41
02/04/25
Cantilevered Retaining Wall
LIC# : KW-06015083, Build:20.25.02.03 Solid Forms Engineering (c) ENERCALC, LLC 1982-2025
DESCRIPTION:5'-8"
Project File: 4in HEEL - CANT - 2 to 1 slope.ec6
Summary of Overturning & Resisting Forces & Moments
.....RESISTING..........OVERTURNING.....Force Distance Moment Distance Moment
Item
Force
ft-#lbs ftft ft-#lbs
Sloped Soil Over Heel 3.1 3.39 10.4
342.53.6793.4=Surcharge over Heel
=
Surcharge Over Heel
=
=
Adjacent Footing Load
=Adjacent Footing Load
Axial Dead Load on Stem =
=* Axial Live Load on Stem
Soil Over Toe
Surcharge Over Toe
Surcharge Over Toe
Load @ Stem Above Soil
=
=
=
183.3 1.25 229.2=
=
=
Stem Weight(s)
=
532.3 2.83 1,508.2
Earth @ Stem Transitions
=Footing Weight
=
787.5 1.75 1,378.1
Key Weight
=
250.0 2.00 500.0
Added Lateral Load
lbs
=2,646.2
Vert. Component
Total
=
1,964.1 4,318.9
* Axial live load NOT included in total displayed, or used for overturningresistance, but is included for soil pressure calculation.
Total =R.M.
=1,035.3 O.T.M.
=
Resisting/Overturning Ratio =1.63
Vertical Loads used for Soil Pressure =2,451.4 lbs
Vertical component of active lateral soil pressure IS NOT considered in
the calculation of Sliding Resistance.
Vertical component of active lateral soil pressure IS NOT considered in
the calculation of Overturning Resistance.
Soil Over HL (ab. water tbl)
Soil Over HL (bel. water tbl)
207.9 3.33
3.33
693.0
693.0
Water Table
Buoyant Force =
HL Act Pres (ab water tbl)
HL Act Pres (be water tbl)
942.0 2.45 2,303.6
Hydrostatic Force
Tilt
Horizontal Deflection at Top of Wall due to settlement of soil
(Deflection due to wall bending not considered)
Soil Spring Reaction Modulus 250.0 pci
Horizontal Defl @ Top of Wall (approximate only)0.077 in
The above calculation is not valid if the heel soil bearing pressure exceeds that of the toe,
because the wall would then tend to rotate into the retained soil.
Detail #3
Page 17 of 41
02/04/25
Cantilevered Retaining Wall
LIC# : KW-06015083, Build:20.25.02.03 Solid Forms Engineering (c) ENERCALC, LLC 1982-2025
DESCRIPTION:7'-8" W/O SEISMIC LOAD
Project File: 4in HEEL - CANT - 2 to 1 slope - SLAB.ec6
Code References
Calculations per IBC 2021, ACI 318-19, TMS 402-16
7.67
0.67
0.00
8.00
5,000.0
35.0
0.0
250.0
Criteria Soil Data
Retained Height =ft
Wall height above soil =ft Active Heel Pressure =psf/ftSlope Behind Wall
Height of Soil over Toe in
Water table above
=ft =
=
110.00=pcf
=
Soil Density, Heel
=Passive Pressure =psf/ft
Allow Soil Bearing =psf
Soil Density, Toe 110.00 pcf
Footing||Soil Friction =0.350
Soil height to ignorefor passive pressure =0.00 in
Equivalent Fluid Pressure Method
bottom of footing
Surcharge Loads Adjacent Footing Load
Load Type
40.0 Lateral Load =0.0 #/ft
40.0
0.0
0.00.0
Axial Load Applied to Stem
Wall to Ftg CL Dist =0.00 ft
Wind on Exposed Stem psf0.0=
Lateral Load Applied to Stem
Surcharge Over Heel =psf Adjacent Footing Load =0.0 lbs
Axial Dead Load
(Service Level)
=lbs
Footing Type Spread Footing
Surcharge Over Toe psf Footing Width =0.00 ft...Height to Top =0.00 ft Eccentricity =0.00 in...Height to Bottom =0.00 ft
NOT Used To Resist Sliding & Overturning
NOT Used for Sliding & Overturning
==0.0 ft
Axial Live Load =
Base Above/Below Soil
lbs
=
Axial Load Eccentricity ==Poisson's Ratio 0.300
at Back of Wall
in (Strength Level)
Wind (W)=
Detail #4
Page 18 of 41
02/04/25
Cantilevered Retaining Wall
LIC# : KW-06015083, Build:20.25.02.03 Solid Forms Engineering (c) ENERCALC, LLC 1982-2025
DESCRIPTION:7'-8" W/O SEISMIC LOAD
Project File: 4in HEEL - CANT - 2 to 1 slope - SLAB.ec6
Design Summary
Wall Stability RatiosOverturning =2.78
Global Stability =1.78
OK
Slab Resists All Sliding !
Total Bearing Load =3,940 lbs...resultant ecc.=6.27 in
Eccentricity within middle thirdSoil Pressure @ Toe =750 psf OK
Soil Pressure @ Heel =262 psf OK
Allowable =5,000 psfSoil Pressure Less Than Allowable
ACI Factored @ Toe =1,121 psf
ACI Factored @ Heel =391 psf
Footing Shear @ Toe =11.2 psi OK
Footing Shear @ Heel =2.4 psi OK
Allowable =58.1 psi
Sliding Calcs
Lateral Sliding Force =1,588.3 lbs
Masonry Block Type =
Stem Construction 2nd Bottom
Stem OK Stem OK
Shear.....Actual
Design Height Above Ftg =4.67ft 0.00
Wall Material Above "Ht"=Masonry Masonry
Thickness =8.00 12.00
Rebar Size =##6 4
Rebar Spacing =16.00 8.00
Rebar Placed at =Center EdgeDesign Data
fb/FB + fa/Fa =0.120 0.739
Total Force @ Section
=196.0 1,127.1lbs
Moment....Actual
=215.4 3,006.5ft-#
Moment.....Allowable =1,782.1 4,063.6ft-#
=2.1 8.1psi
Shear.....Allowable =44.6 45.9psi
Wall Weight =84.0 133.0psf
Rebar Depth 'd'=3.81in 9.00
Masonry Data
f'm =1,500 1,500psiFs=psi 20,000 20,000Solid Grouting =Yes Yes
Modular Ratio 'n'=21.48 21.48
Equiv. Solid Thick.=7.63 11.63in
Concrete Dataf'c =psi
Fy =
Masonry Design Method ASD=
Load Factors
Building Code
Dead Load 1.200
Live Load 1.600
Earth, H 1.600
Wind, W 1.600
Seismic, E 1.000 psi
Service Level
=lbsStrength Level
Service Level
Strength Level =ft-#
Service Level
Strength Level =psi
Design Method =ASD ASD SDSD
Vertical component of active lateral soil pressure IS NOT
considered in the calculation of soil bearing pressures.
Anet (Masonry)=91.50 139.50in2
Detail #4
Page 19 of 41
02/04/25
Cantilevered Retaining Wall
LIC# : KW-06015083, Build:20.25.02.03 Solid Forms Engineering (c) ENERCALC, LLC 1982-2025
DESCRIPTION:7'-8" W/O SEISMIC LOAD
Project File: 4in HEEL - CANT - 2 to 1 slope - SLAB.ec6
5.00
1.50
18.00
Footing Torsion, Tu =
=
ft-lbs0.00
Min. As %
Footing Allow. Torsion, ij Tn
0.0018
=ft-lbs
Footing Data
If torsion exceeds allowable, provide
f'c
0.00
=1,500psi
Toe Width =ft
Heel Width =
Footing Thickness =in
6.50=
Cover @ Top =2.00 in@ Btm.=3.00 in
Total Footing Width
=150.00 pcfFooting Concrete DensityFy =60,000 psi
Footing Design Results
Key:
=
No key defined
Factored Pressure
Mu' : Upward
Mu' : Downward
Mu: Design
Actual 1-Way Shear
Allow 1-Way Shear
Toe:#4@ 6.17 in, #5@ 9.56 in, #6@ 13.58 in, #7@ 18 in, #8@ 18 in, #9@ 18 in,
#10@ 18 in
phiMn = phi*5*lambda*sqrt(fc)*Sm
=# 5 @ 14.35 in
=
=
=
=
=
1,121
11,671
5,803
5,869
11.17
30.25
Heel:
391
51
337
285
2.41
30.98
HeelToe
psf
ft-#
ft-#
ft-#
psi
psi
Heel Reinforcing =None Spec'd
Other Acceptable Sizes & Spacings
Key Reinforcing
Toe Reinforcing =# 5 @ 9.57 in
Min footing T&S reinf Area
Min footing T&S reinf Area per foot
If one layer of horizontal bars:
2.53
0.39
#4@ 6.17 in
#5@ 9.57 in
#6@ 13.58 in
in2
in2 /ft
If two layers of horizontal bars:
#4@ 12.35 in
#5@ 19.14 in
#6@ 27.16 in
supplemental design for footing torsion.
ij Mn 4,95724,363=ft-#
Detail #4
Page 20 of 41
02/04/25
Cantilevered Retaining Wall
LIC# : KW-06015083, Build:20.25.02.03 Solid Forms Engineering (c) ENERCALC, LLC 1982-2025
DESCRIPTION:7'-8" W/O SEISMIC LOAD
Project File: 4in HEEL - CANT - 2 to 1 slope - SLAB.ec6
Summary of Overturning & Resisting Forces & Moments
.....RESISTING..........OVERTURNING.....Force Distance Moment Distance Moment
Item
Force
ft-#lbs ftft ft-#lbs
Sloped Soil Over Heel
535.14.59116.7=Surcharge over Heel
=
Surcharge Over Heel
=
=
Adjacent Footing Load
=Adjacent Footing Load
Axial Dead Load on Stem =
=* Axial Live Load on Stem
Soil Over Toe
Surcharge Over Toe
Surcharge Over Toe
Load @ Stem Above Soil
=
=
=
366.7 2.50 916.7=
=
=
Stem Weight(s)
=
929.0 5.44 5,058.1
Earth @ Stem Transitions
=
110.1 5.83 642.3
Footing Weight
=
1,462.5 3.25 4,753.1
Key Weight
=
1.00
Added Lateral Load
lbs
=5,033.2
Vert. Component
Total
=
3,290.1 14,006.7
* Axial live load NOT included in total displayed, or used for overturningresistance, but is included for soil pressure calculation.
Total =R.M.
=1,588.3 O.T.M.
=
Resisting/Overturning Ratio =2.78
Vertical Loads used for Soil Pressure =3,939.7 lbs
Vertical component of active lateral soil pressure IS NOT considered in
the calculation of Sliding Resistance.
Vertical component of active lateral soil pressure IS NOT considered in
the calculation of Overturning Resistance.
Soil Over HL (ab. water tbl)
Soil Over HL (bel. water tbl)
421.9 6.25
6.25
2,636.6
2,636.6
Water Table
Buoyant Force =
HL Act Pres (ab water tbl)
HL Act Pres (be water tbl)
1,471.6 3.06 4,498.1
Hydrostatic Force
Tilt
Horizontal Deflection at Top of Wall due to settlement of soil
(Deflection due to wall bending not considered)
Soil Spring Reaction Modulus 250.0 pci
Horizontal Defl @ Top of Wall (approximate only)0.027 in
The above calculation is not valid if the heel soil bearing pressure exceeds that of the toe,
because the wall would then tend to rotate into the retained soil.
Detail #4
Page 21 of 41
02/04/25
Cantilevered Retaining Wall
LIC# : KW-06015083, Build:20.25.02.03 Solid Forms Engineering (c) ENERCALC, LLC 1982-2025
DESCRIPTION:7'-8" W/ SEISMIC LOAD
Project File: 4in HEEL - CANT - 2 to 1 slope - SLAB.ec6
Code References
Calculations per IBC 2021, ACI 318-19, TMS 402-16
7.67
0.67
0.00
8.00
5,000.0
35.0
0.0
250.0
Criteria Soil Data
Retained Height =ft
Wall height above soil =ft Active Heel Pressure =psf/ftSlope Behind Wall
Height of Soil over Toe in
Water table above
=ft =
=
110.00=pcf
=
Soil Density, Heel
=Passive Pressure =psf/ft
Allow Soil Bearing =psf
Soil Density, Toe 110.00 pcf
Footing||Soil Friction =0.350
Soil height to ignorefor passive pressure =0.00 in
Equivalent Fluid Pressure Method
bottom of footing
Surcharge Loads Adjacent Footing Load
Load Type
40.0 Lateral Load =323.0 #/ft
40.0
0.0
0.00.0
Axial Load Applied to Stem
Wall to Ftg CL Dist =0.00 ft
Wind on Exposed Stem psf0.0=
Lateral Load Applied to Stem
Surcharge Over Heel =psf Adjacent Footing Load =0.0 lbs
Axial Dead Load
(Service Level)
=lbs
Footing Type Spread Footing
Surcharge Over Toe psf Footing Width =0.00 ft...Height to Top =5.00 ft Eccentricity =0.00 in...Height to Bottom =4.00 ft
NOT Used To Resist Sliding & Overturning
NOT Used for Sliding & Overturning
==0.0 ft
Axial Live Load =
Base Above/Below Soil
lbs
=
Axial Load Eccentricity ==Poisson's Ratio 0.300
at Back of Wall
in (Strength Level)
Seismic (E)=
Detail #4
Page 22 of 41
02/04/25
Cantilevered Retaining Wall
LIC# : KW-06015083, Build:20.25.02.03 Solid Forms Engineering (c) ENERCALC, LLC 1982-2025
DESCRIPTION:7'-8" W/ SEISMIC LOAD
Project File: 4in HEEL - CANT - 2 to 1 slope - SLAB.ec6
Design Summary
Wall Stability RatiosOverturning =2.01
Global Stability =1.78
OK
Slab Resists All Sliding !
Total Bearing Load =3,940 lbs...resultant ecc.=13.34 in
Eccentricity outside middle thirdSoil Pressure @ Toe =1,026 psf OK
Soil Pressure @ Heel =0 psf OK
Allowable =5,000 psfSoil Pressure Less Than Allowable
ACI Factored @ Toe =1,532 psf
ACI Factored @ Heel =0 psf
Footing Shear @ Toe =13.9 psi OK
Footing Shear @ Heel =3.4 psi OK
Allowable =58.1 psi
Sliding Calcs
Lateral Sliding Force =1,911.3 lbs
Masonry Block Type =
Stem Construction 2nd Bottom
Stem OK Ratio > 1.0
Shear.....Actual
Design Height Above Ftg =4.67ft 0.00
Wall Material Above "Ht"=Masonry Masonry
Thickness =8.00 12.00
Rebar Size =##6 4
Rebar Spacing =16.00 8.00
Rebar Placed at =Center EdgeDesign Data
fb/FB + fa/Fa =0.130 1.097
Total Force @ Section
=303.6 1,450.1lbs
Moment....Actual
=233.3 4,460.0ft-#
Moment.....Allowable =1,782.1 4,063.6ft-#
=3.3 10.4psi
Shear.....Allowable =44.6 45.9psi
Wall Weight =84.0 133.0psf
Rebar Depth 'd'=3.81in 9.00
Masonry Data
f'm =1,500 1,500psiFs=psi 20,000 20,000Solid Grouting =Yes Yes
Modular Ratio 'n'=21.48 21.48
Equiv. Solid Thick.=7.63 11.63in
Concrete Dataf'c =psi
Fy =
Masonry Design Method ASD=
Load Factors
Building Code
Dead Load 1.200
Live Load 1.600
Earth, H 1.600
Wind, W 1.600
Seismic, E 1.000 psi
Service Level
=lbsStrength Level
Service Level
Strength Level =ft-#
Service Level
Strength Level =psi
Design Method =ASD ASD SDSD
Vertical component of active lateral soil pressure IS NOT
considered in the calculation of soil bearing pressures.
Anet (Masonry)=91.50 139.50in2
Detail #4
Page 23 of 41
02/04/25
Cantilevered Retaining Wall
LIC# : KW-06015083, Build:20.25.02.03 Solid Forms Engineering (c) ENERCALC, LLC 1982-2025
DESCRIPTION:7'-8" W/ SEISMIC LOAD
Project File: 4in HEEL - CANT - 2 to 1 slope - SLAB.ec6
5.00
1.50
18.00
Footing Torsion, Tu =
=
ft-lbs0.00
Min. As %
Footing Allow. Torsion, ij Tn
0.0018
=ft-lbs
Footing Data
If torsion exceeds allowable, provide
f'c
0.00
=1,500psi
Toe Width =ft
Heel Width =
Footing Thickness =in
6.50=
Cover @ Top =2.00 in@ Btm.=3.00 in
Total Footing Width
=150.00 pcfFooting Concrete DensityFy =60,000 psi
Footing Design Results
Key:
=
No key defined
Factored Pressure
Mu' : Upward
Mu' : Downward
Mu: Design
Actual 1-Way Shear
Allow 1-Way Shear
Toe:#4@ 6.17 in, #5@ 9.56 in, #6@ 13.58 in, #7@ 18 in, #8@ 18 in, #9@ 18 in,
#10@ 18 in
phiMn = phi*5*lambda*sqrt(fc)*Sm
=# 5 @ 14.35 in
=
=
=
=
=
1,532
14,175
5,803
8,373
13.90
30.25
Heel:
0
3
337
334
3.40
30.98
HeelToe
psf
ft-#
ft-#
ft-#
psi
psi
Heel Reinforcing =None Spec'd
Other Acceptable Sizes & Spacings
Key Reinforcing
Toe Reinforcing =# 5 @ 9.57 in
Min footing T&S reinf Area
Min footing T&S reinf Area per foot
If one layer of horizontal bars:
2.53
0.39
#4@ 6.17 in
#5@ 9.57 in
#6@ 13.58 in
in2
in2 /ft
If two layers of horizontal bars:
#4@ 12.35 in
#5@ 19.14 in
#6@ 27.16 in
supplemental design for footing torsion.
ij Mn 4,95724,363=ft-#
Detail #4
Page 24 of 41
02/04/25
Cantilevered Retaining Wall
LIC# : KW-06015083, Build:20.25.02.03 Solid Forms Engineering (c) ENERCALC, LLC 1982-2025
DESCRIPTION:7'-8" W/ SEISMIC LOAD
Project File: 4in HEEL - CANT - 2 to 1 slope - SLAB.ec6
Summary of Overturning & Resisting Forces & Moments
.....RESISTING..........OVERTURNING.....Force Distance Moment Distance Moment
Item
Force
ft-#lbs ftft ft-#lbs
Sloped Soil Over Heel
535.14.59116.7=Surcharge over Heel
=
Surcharge Over Heel
=
=
Adjacent Footing Load
=Adjacent Footing Load
Axial Dead Load on Stem =
=* Axial Live Load on Stem
Soil Over Toe
Surcharge Over Toe
Surcharge Over Toe
Load @ Stem Above Soil
=
=
=
366.7 2.50 916.7=
=
=
Stem Weight(s)
=
929.0 5.44 5,058.1
Earth @ Stem Transitions
=
110.1 5.83 642.3
Footing Weight
=
1,462.5 3.25 4,753.1
Key Weight
=
1.00
Added Lateral Load
lbs
=6,971.2
Vert. Component
Total
=
3,290.1
323.0 6.00 1,938.0
14,006.7
* Axial live load NOT included in total displayed, or used for overturningresistance, but is included for soil pressure calculation.
Total =R.M.
=1,911.3 O.T.M.
=
Resisting/Overturning Ratio =2.01
Vertical Loads used for Soil Pressure =3,939.7 lbs
Vertical component of active lateral soil pressure IS NOT considered in
the calculation of Sliding Resistance.
Vertical component of active lateral soil pressure IS NOT considered in
the calculation of Overturning Resistance.
Soil Over HL (ab. water tbl)
Soil Over HL (bel. water tbl)
421.9 6.25
6.25
2,636.6
2,636.6
Water Table
Buoyant Force =
HL Act Pres (ab water tbl)
HL Act Pres (be water tbl)
1,471.6 3.06 4,498.1
Hydrostatic Force
Tilt
Horizontal Deflection at Top of Wall due to settlement of soil
(Deflection due to wall bending not considered)
Soil Spring Reaction Modulus 250.0 pci
Horizontal Defl @ Top of Wall (approximate only)0.037 in
The above calculation is not valid if the heel soil bearing pressure exceeds that of the toe,
because the wall would then tend to rotate into the retained soil.
Detail #4
Page 25 of 41
02/04/25
Cantilevered Retaining Wall
LIC# : KW-06015083, Build:20.25.02.03 Solid Forms Engineering (c) ENERCALC, LLC 1982-2025
DESCRIPTION:8'-8" W/O SEISMIC LOAD
Project File: 4in HEEL - CANT - 2 to 1 slope - SLAB.ec6
Code References
Calculations per IBC 2021, ACI 318-19, TMS 402-16
8.67
0.67
0.00
8.00
5,000.0
35.0
0.0
250.0
Criteria Soil Data
Retained Height =ft
Wall height above soil =ft Active Heel Pressure =psf/ftSlope Behind Wall
Height of Soil over Toe in
Water table above
=ft =
=
110.00=pcf
=
Soil Density, Heel
=Passive Pressure =psf/ft
Allow Soil Bearing =psf
Soil Density, Toe 110.00 pcf
Footing||Soil Friction =0.350
Soil height to ignorefor passive pressure =0.00 in
Equivalent Fluid Pressure Method
bottom of footing
Surcharge Loads Adjacent Footing Load
Load Type
40.0 Lateral Load =0.0 #/ft
40.0
0.0
0.00.0
Axial Load Applied to Stem
Wall to Ftg CL Dist =0.00 ft
Wind on Exposed Stem psf0.0=
Lateral Load Applied to Stem
Surcharge Over Heel =psf Adjacent Footing Load =0.0 lbs
Axial Dead Load
(Service Level)
=lbs
Footing Type Spread Footing
Surcharge Over Toe psf Footing Width =0.00 ft...Height to Top =0.00 ft Eccentricity =0.00 in...Height to Bottom =0.00 ft
NOT Used To Resist Sliding & Overturning
NOT Used for Sliding & Overturning
==0.0 ft
Axial Live Load =
Base Above/Below Soil
lbs
=
Axial Load Eccentricity ==Poisson's Ratio 0.300
at Back of Wall
in (Strength Level)
Wind (W)=
Detail #4
Page 26 of 41
02/04/25
Cantilevered Retaining Wall
LIC# : KW-06015083, Build:20.25.02.03 Solid Forms Engineering (c) ENERCALC, LLC 1982-2025
DESCRIPTION:8'-8" W/O SEISMIC LOAD
Project File: 4in HEEL - CANT - 2 to 1 slope - SLAB.ec6
Design Summary
Wall Stability RatiosOverturning =2.74
Global Stability =1.59
OK
Slab Resists All Sliding !
Total Bearing Load =4,563 lbs...resultant ecc.=7.28 in
Eccentricity within middle thirdSoil Pressure @ Toe =745 psf OK
Soil Pressure @ Heel =258 psf OK
Allowable =5,000 psfSoil Pressure Less Than Allowable
ACI Factored @ Toe =1,116 psf
ACI Factored @ Heel =387 psf
Footing Shear @ Toe =12.9 psi OK
Footing Shear @ Heel =2.8 psi OK
Allowable =58.1 psi
Sliding Calcs
Lateral Sliding Force =1,939.4 lbs
Masonry Block Type =
Stem Construction 2nd Bottom
Stem OK Ratio > 1.0
Shear.....Actual
Design Height Above Ftg =4.67ft 0.00
Wall Material Above "Ht"=Masonry Masonry
Thickness =8.00 12.00
Rebar Size =##6 4
Rebar Spacing =16.00 8.00
Rebar Placed at =Center EdgeDesign Data
fb/FB + fa/Fa =0.267 1.053
Total Force @ Section
=331.4 1,425.8lbs
Moment....Actual
=476.1 4,280.0ft-#
Moment.....Allowable =1,782.1 4,063.6ft-#
=3.6 10.2psi
Shear.....Allowable =44.9 46.1psi
Wall Weight =84.0 133.0psf
Rebar Depth 'd'=3.81in 9.00
Masonry Data
f'm =1,500 1,500psiFs=psi 20,000 20,000Solid Grouting =Yes Yes
Modular Ratio 'n'=21.48 21.48
Equiv. Solid Thick.=7.63 11.63in
Concrete Dataf'c =psi
Fy =
Masonry Design Method ASD=
Load Factors
Building Code
Dead Load 1.200
Live Load 1.600
Earth, H 1.600
Wind, W 1.600
Seismic, E 1.000 psi
Service Level
=lbsStrength Level
Service Level
Strength Level =ft-#
Service Level
Strength Level =psi
Design Method =ASD ASD SDSD
Vertical component of active lateral soil pressure IS NOT
considered in the calculation of soil bearing pressures.
Anet (Masonry)=91.50 139.50in2
Detail #4
Page 27 of 41
02/04/25
Cantilevered Retaining Wall
LIC# : KW-06015083, Build:20.25.02.03 Solid Forms Engineering (c) ENERCALC, LLC 1982-2025
DESCRIPTION:8'-8" W/O SEISMIC LOAD
Project File: 4in HEEL - CANT - 2 to 1 slope - SLAB.ec6
6.00
1.50
18.00
Footing Torsion, Tu =
=
ft-lbs0.00
Min. As %
Footing Allow. Torsion, ij Tn
0.0018
=ft-lbs
Footing Data
If torsion exceeds allowable, provide
f'c
0.00
=1,500psi
Toe Width =ft
Heel Width =
Footing Thickness =in
7.50=
Cover @ Top =2.00 in@ Btm.=3.00 in
Total Footing Width
=150.00 pcfFooting Concrete DensityFy =60,000 psi
Footing Design Results
Key:
=
No key defined
Factored Pressure
Mu' : Upward
Mu' : Downward
Mu: Design
Actual 1-Way Shear
Allow 1-Way Shear
Toe:#4@ 6.17 in, #5@ 9.56 in, #6@ 13.58 in, #7@ 18 in, #8@ 18 in, #9@ 18 in,
#10@ 18 in
phiMn = phi*5*lambda*sqrt(fc)*Sm
=# 5 @ 14.35 in
=
=
=
=
=
1,116
16,582
8,229
8,353
12.85
30.25
Heel:
387
50
370
319
2.78
30.98
HeelToe
psf
ft-#
ft-#
ft-#
psi
psi
Heel Reinforcing =None Spec'd
Other Acceptable Sizes & Spacings
Key Reinforcing
Toe Reinforcing =# 5 @ 9.57 in
Min footing T&S reinf Area
Min footing T&S reinf Area per foot
If one layer of horizontal bars:
2.92
0.39
#4@ 6.17 in
#5@ 9.57 in
#6@ 13.58 in
in2
in2 /ft
If two layers of horizontal bars:
#4@ 12.35 in
#5@ 19.14 in
#6@ 27.16 in
supplemental design for footing torsion.
ij Mn 4,95724,363=ft-#
Detail #4
Page 28 of 41
02/04/25
Cantilevered Retaining Wall
LIC# : KW-06015083, Build:20.25.02.03 Solid Forms Engineering (c) ENERCALC, LLC 1982-2025
DESCRIPTION:8'-8" W/O SEISMIC LOAD
Project File: 4in HEEL - CANT - 2 to 1 slope - SLAB.ec6
Summary of Overturning & Resisting Forces & Moments
.....RESISTING..........OVERTURNING.....Force Distance Moment Distance Moment
Item
Force
ft-#lbs ftft ft-#lbs
Sloped Soil Over Heel
658.25.09129.4=Surcharge over Heel
=
Surcharge Over Heel
=
=
Adjacent Footing Load
=Adjacent Footing Load
Axial Dead Load on Stem =
=* Axial Live Load on Stem
Soil Over Toe
Surcharge Over Toe
Surcharge Over Toe
Load @ Stem Above Soil
=
=
=
440.0 3.00 1,320.0=
=
=
Stem Weight(s)
=
1,013.0 6.44 6,519.1
Earth @ Stem Transitions
=
146.8 6.83 1,003.0
Footing Weight
=
1,687.5 3.75 6,328.1
Key Weight
=
1.00
Added Lateral Load
lbs
=6,794.1
Vert. Component
Total
=
3,764.1 18,627.3
* Axial live load NOT included in total displayed, or used for overturningresistance, but is included for soil pressure calculation.
Total =R.M.
=1,939.4 O.T.M.
=
Resisting/Overturning Ratio =2.74
Vertical Loads used for Soil Pressure =4,563.1 lbs
Vertical component of active lateral soil pressure IS NOT considered in
the calculation of Sliding Resistance.
Vertical component of active lateral soil pressure IS NOT considered in
the calculation of Overturning Resistance.
Soil Over HL (ab. water tbl)
Soil Over HL (bel. water tbl)
476.9 7.25
7.25
3,457.2
3,457.2
Water Table
Buoyant Force =
HL Act Pres (ab water tbl)
HL Act Pres (be water tbl)
1,810.0 3.39 6,135.9
Hydrostatic Force
Tilt
Horizontal Deflection at Top of Wall due to settlement of soil
(Deflection due to wall bending not considered)
Soil Spring Reaction Modulus 250.0 pci
Horizontal Defl @ Top of Wall (approximate only)0.026 in
The above calculation is not valid if the heel soil bearing pressure exceeds that of the toe,
because the wall would then tend to rotate into the retained soil.
Detail #4
Page 29 of 41
02/04/25
Cantilevered Retaining Wall
LIC# : KW-06015083, Build:20.25.02.03 Solid Forms Engineering (c) ENERCALC, LLC 1982-2025
DESCRIPTION:8'-8" W/ SEISMIC LOAD
Project File: 4in HEEL - CANT - 2 to 1 slope - SLAB.ec6
Code References
Calculations per IBC 2021, ACI 318-19, TMS 402-16
8.67
0.67
0.00
8.00
5,000.0
35.0
0.0
250.0
Criteria Soil Data
Retained Height =ft
Wall height above soil =ft Active Heel Pressure =psf/ftSlope Behind Wall
Height of Soil over Toe in
Water table above
=ft =
=
110.00=pcf
=
Soil Density, Heel
=Passive Pressure =psf/ft
Allow Soil Bearing =psf
Soil Density, Toe 110.00 pcf
Footing||Soil Friction =0.350
Soil height to ignorefor passive pressure =0.00 in
Equivalent Fluid Pressure Method
bottom of footing
Surcharge Loads Adjacent Footing Load
Load Type
40.0 Lateral Load =413.0 #/ft
40.0
0.0
0.00.0
Axial Load Applied to Stem
Wall to Ftg CL Dist =0.00 ft
Wind on Exposed Stem psf0.0=
Lateral Load Applied to Stem
Surcharge Over Heel =psf Adjacent Footing Load =0.0 lbs
Axial Dead Load
(Service Level)
=lbs
Footing Type Spread Footing
Surcharge Over Toe psf Footing Width =0.00 ft...Height to Top =5.70 ft Eccentricity =0.00 in...Height to Bottom =4.70 ft
NOT Used To Resist Sliding & Overturning
NOT Used for Sliding & Overturning
==0.0 ft
Axial Live Load =
Base Above/Below Soil
lbs
=
Axial Load Eccentricity ==Poisson's Ratio 0.300
at Back of Wall
in (Strength Level)
Seismic (E)=
Detail #4
Page 30 of 41
02/04/25
Cantilevered Retaining Wall
LIC# : KW-06015083, Build:20.25.02.03 Solid Forms Engineering (c) ENERCALC, LLC 1982-2025
DESCRIPTION:8'-8" W/ SEISMIC LOAD
Project File: 4in HEEL - CANT - 2 to 1 slope - SLAB.ec6
Design Summary
Wall Stability RatiosOverturning =1.95
Global Stability =1.59
OK
Slab Resists All Sliding !
Total Bearing Load =4,563 lbs...resultant ecc.=16.10 in
Eccentricity outside middle thirdSoil Pressure @ Toe =1,042 psf OK
Soil Pressure @ Heel =0 psf OK
Allowable =5,000 psfSoil Pressure Less Than Allowable
ACI Factored @ Toe =1,559 psf
ACI Factored @ Heel =0 psf
Footing Shear @ Toe =15.9 psi OK
Footing Shear @ Heel =3.8 psi OK
Allowable =58.1 psi
Sliding Calcs
Lateral Sliding Force =2,352.4 lbs
Masonry Block Type =
Stem Construction 2nd Bottom
Stem OK Ratio > 1.0
Shear.....Actual
Design Height Above Ftg =4.67ft 0.00
Wall Material Above "Ht"=Masonry Masonry
Thickness =8.00 12.00
Rebar Size =##6 4
Rebar Spacing =16.00 8.00
Rebar Placed at =Center EdgeDesign Data
fb/FB + fa/Fa =0.390 1.581
Total Force @ Section
=744.4 1,838.8lbs
Moment....Actual
=696.3 6,427.6ft-#
Moment.....Allowable =1,782.1 4,063.6ft-#
=8.1 13.2psi
Shear.....Allowable =44.9 46.1psi
Wall Weight =84.0 133.0psf
Rebar Depth 'd'=3.81in 9.00
Masonry Data
f'm =1,500 1,500psiFs=psi 20,000 20,000Solid Grouting =Yes Yes
Modular Ratio 'n'=21.48 21.48
Equiv. Solid Thick.=7.63 11.63in
Concrete Dataf'c =psi
Fy =
Masonry Design Method ASD=
Load Factors
Building Code
Dead Load 1.200
Live Load 1.600
Earth, H 1.600
Wind, W 1.600
Seismic, E 1.000 psi
Service Level
=lbsStrength Level
Service Level
Strength Level =ft-#
Service Level
Strength Level =psi
Design Method =ASD ASD SDSD
Vertical component of active lateral soil pressure IS NOT
considered in the calculation of soil bearing pressures.
Anet (Masonry)=91.50 139.50in2
Detail #4
Page 31 of 41
02/04/25
Cantilevered Retaining Wall
LIC# : KW-06015083, Build:20.25.02.03 Solid Forms Engineering (c) ENERCALC, LLC 1982-2025
DESCRIPTION:8'-8" W/ SEISMIC LOAD
Project File: 4in HEEL - CANT - 2 to 1 slope - SLAB.ec6
6.00
1.50
18.00
Footing Torsion, Tu =
=
ft-lbs0.00
Min. As %
Footing Allow. Torsion, ij Tn
0.0018
=ft-lbs
Footing Data
If torsion exceeds allowable, provide
f'c
0.00
=1,500psi
Toe Width =ft
Heel Width =
Footing Thickness =in
7.50=
Cover @ Top =2.00 in@ Btm.=3.00 in
Total Footing Width
=150.00 pcfFooting Concrete DensityFy =60,000 psi
Footing Design Results
Key:
=
No key defined
Factored Pressure
Mu' : Upward
Mu' : Downward
Mu: Design
Actual 1-Way Shear
Allow 1-Way Shear
Toe:#4@ 6.17 in, #5@ 9.56 in, #6@ 13.58 in, #7@ 18 in, #8@ 18 in, #9@ 18 in,
#10@ 18 in
phiMn = phi*5*lambda*sqrt(fc)*Sm
=# 5 @ 14.35 in
=
=
=
=
=
1,559
20,300
8,229
12,071
15.88
30.25
Heel:
0
0
370
369
3.82
30.98
HeelToe
psf
ft-#
ft-#
ft-#
psi
psi
Heel Reinforcing =None Spec'd
Other Acceptable Sizes & Spacings
Key Reinforcing
Toe Reinforcing =# 5 @ 9.57 in
Min footing T&S reinf Area
Min footing T&S reinf Area per foot
If one layer of horizontal bars:
2.92
0.39
#4@ 6.17 in
#5@ 9.57 in
#6@ 13.58 in
in2
in2 /ft
If two layers of horizontal bars:
#4@ 12.35 in
#5@ 19.14 in
#6@ 27.16 in
supplemental design for footing torsion.
ij Mn 4,95724,363=ft-#
Detail #4
Page 32 of 41
02/04/25
Cantilevered Retaining Wall
LIC# : KW-06015083, Build:20.25.02.03 Solid Forms Engineering (c) ENERCALC, LLC 1982-2025
DESCRIPTION:8'-8" W/ SEISMIC LOAD
Project File: 4in HEEL - CANT - 2 to 1 slope - SLAB.ec6
Summary of Overturning & Resisting Forces & Moments
.....RESISTING..........OVERTURNING.....Force Distance Moment Distance Moment
Item
Force
ft-#lbs ftft ft-#lbs
Sloped Soil Over Heel
658.25.09129.4=Surcharge over Heel
=
Surcharge Over Heel
=
=
Adjacent Footing Load
=Adjacent Footing Load
Axial Dead Load on Stem =
=* Axial Live Load on Stem
Soil Over Toe
Surcharge Over Toe
Surcharge Over Toe
Load @ Stem Above Soil
=
=
=
440.0 3.00 1,320.0=
=
=
Stem Weight(s)
=
1,013.0 6.44 6,519.1
Earth @ Stem Transitions
=
146.8 6.83 1,003.0
Footing Weight
=
1,687.5 3.75 6,328.1
Key Weight
=
1.00
Added Lateral Load
lbs
=9,561.2
Vert. Component
Total
=
3,764.1
413.0 6.70 2,767.1
18,627.3
* Axial live load NOT included in total displayed, or used for overturningresistance, but is included for soil pressure calculation.
Total =R.M.
=2,352.4 O.T.M.
=
Resisting/Overturning Ratio =1.95
Vertical Loads used for Soil Pressure =4,563.1 lbs
Vertical component of active lateral soil pressure IS NOT considered in
the calculation of Sliding Resistance.
Vertical component of active lateral soil pressure IS NOT considered in
the calculation of Overturning Resistance.
Soil Over HL (ab. water tbl)
Soil Over HL (bel. water tbl)
476.9 7.25
7.25
3,457.2
3,457.2
Water Table
Buoyant Force =
HL Act Pres (ab water tbl)
HL Act Pres (be water tbl)
1,810.0 3.39 6,135.9
Hydrostatic Force
Tilt
Horizontal Deflection at Top of Wall due to settlement of soil
(Deflection due to wall bending not considered)
Soil Spring Reaction Modulus 250.0 pci
Horizontal Defl @ Top of Wall (approximate only)0.036 in
The above calculation is not valid if the heel soil bearing pressure exceeds that of the toe,
because the wall would then tend to rotate into the retained soil.
Detail #4
Page 33 of 41
02/04/25
Cantilevered Retaining Wall
LIC# : KW-06015083, Build:20.25.02.03 Solid Forms Engineering (c) ENERCALC, LLC 1982-2025
DESCRIPTION:8'-0" W/O SEISMIC LOAD
Project File: 4in HEEL - CANT - 2 to 1 slope.ec6
Code References
Calculations per IBC 2021, ACI 318-19, TMS 402-16
8.00
0.67
0.00
8.00
5,000.0
35.0
0.0
250.0
Criteria Soil Data
Retained Height =ft
Wall height above soil =ft Active Heel Pressure =psf/ftSlope Behind Wall
Height of Soil over Toe in
Water table above
=ft =
=
110.00=pcf
=
Soil Density, Heel
=Passive Pressure =psf/ft
Allow Soil Bearing =psf
Soil Density, Toe 110.00 pcf
Footing||Soil Friction =0.350
Soil height to ignorefor passive pressure =0.00 in
Equivalent Fluid Pressure Method
bottom of footing
Surcharge Loads Adjacent Footing Load
Load Type
40.0 Lateral Load =0.0 #/ft
40.0
0.0
0.00.0
Axial Load Applied to Stem
Wall to Ftg CL Dist =0.00 ft
Wind on Exposed Stem psf0.0=
Lateral Load Applied to Stem
Surcharge Over Heel =psf Adjacent Footing Load =0.0 lbs
Axial Dead Load
(Service Level)
=lbs
Footing Type Spread Footing
Surcharge Over Toe psf Footing Width =0.00 ft...Height to Top =0.00 ft Eccentricity =0.00 in...Height to Bottom =0.00 ft
NOT Used To Resist Sliding & Overturning
NOT Used for Sliding & Overturning
==0.0 ft
Axial Live Load =
Base Above/Below Soil
lbs
=
Axial Load Eccentricity ==Poisson's Ratio 0.300
at Back of Wall
in (Strength Level)
Wind (W)=
Detail #7
Page 34 of 41
02/04/25
Cantilevered Retaining Wall
LIC# : KW-06015083, Build:20.25.02.03 Solid Forms Engineering (c) ENERCALC, LLC 1982-2025
DESCRIPTION:8'-0" W/O SEISMIC LOAD
Project File: 4in HEEL - CANT - 2 to 1 slope.ec6
Design Summary
Wall Stability RatiosOverturning =3.01
Global Stability =1.71
OK
Sliding =2.08 OK
Total Bearing Load =4,587 lbs...resultant ecc.=4.37 in
Eccentricity within middle thirdSoil Pressure @ Toe =800 psf OK
Soil Pressure @ Heel =397 psf OK
Allowable =5,000 psfSoil Pressure Less Than Allowable
ACI Factored @ Toe =1,183 psf
ACI Factored @ Heel =587 psf
Footing Shear @ Toe =12.2 psi OK
Footing Shear @ Heel =2.0 psi OK
Allowable =58.1 psi
Sliding Calcs
Lateral Sliding Force =1,700.3 lbs
less 100% Passive Force
less 100% Friction Force
Added Force Req'd
....for 1.5 Stability =
0.0=
1,361.5
2,170.1
==
0.0
-
lbs
lbs
lbs OK
lbs OK
-
Masonry Block Type =
Stem Construction 2nd Bottom
Stem OK Stem OK
Shear.....Actual
Design Height Above Ftg =4.00ft 0.00
Wall Material Above "Ht"=Masonry Concrete
Thickness =12.00 12.00
Rebar Size =##6 6
Rebar Spacing =16.00 8.00
Rebar Placed at =Edge EdgeDesign Data
fb/FB + fa/Fa =0.106 0.203
Total Force @ Section
=330.9lbs
Moment....Actual
=475.2ft-#
Moment.....Allowable =4,450.7 26,658.7ft-#
=2.4psi
Shear.....Allowable =44.9 58.8psi
Wall Weight =133.0 150.0psf
Rebar Depth 'd'=9.00in 9.63
Masonry Data
f'm =1,500psiFs=psi 20,000Solid Grouting =Yes
Modular Ratio 'n'=21.48
Equiv. Solid Thick.=11.63in
Concrete Dataf'c =3,000.0psi
Fy =60,000.0
Masonry Design Method ASD=
Load Factors
Building Code
Dead Load 1.200
Live Load 1.600
Earth, H 1.600
Wind, W 1.600
Seismic, E 1.000 psi
Service Level
=1,954.9lbsStrength Level
Service Level
Strength Level =5,430.3ft-#
Service Level
Strength Level =16.9psi
Design Method =ASD SD SDSD
Vertical component of active lateral soil pressure IS NOT
considered in the calculation of soil bearing pressures.
Anet (Masonry)=139.50in2
Detail #7
Page 35 of 41
02/04/25
Cantilevered Retaining Wall
LIC# : KW-06015083, Build:20.25.02.03 Solid Forms Engineering (c) ENERCALC, LLC 1982-2025
DESCRIPTION:8'-0" W/O SEISMIC LOAD
Project File: 4in HEEL - CANT - 2 to 1 slope.ec6
Concrete Stem Rebar Area Details
Bottom Stem Vertical Reinforcing Horizontal Reinforcing
As (based on applied moment) :0.1297 in2/ft
0.0018bh : 0.0018(12)(12) :0.2592 in2/ft Horizontal Reinforcing Options :
============One layer of : Two layers of :
Required Area :0.2592 in2/ft #4@ 9.26 in #4@ 18.52 in
Provided Area :0.66 in2/ft #5@ 14.35 in #5@ 28.70 in
Maximum Area :1.5647 in2/ft #6@ 20.37 in #6@ 40.74 in
5.00
1.50
18.00
Footing Torsion, Tu =
=
ft-lbs0.00
Min. As %
Footing Allow. Torsion, ij Tn
0.0018
=ft-lbs
Footing Data
If torsion exceeds allowable, provide
f'c
0.00
=1,500psi
Toe Width =ftHeel Width =
Key Distance from Toe
Key Depth
Key Width =in
=in
=
16.00
24.00
3.50 ft
Footing Thickness =in
6.50=
Cover @ Top =2.00 in@ Btm.=3.00 in
Total Footing Width
=150.00 pcfFooting Concrete DensityFy =60,000 psi
Footing Design Results
Key:
=
#4@ 6.94 in, #5@ 10.76 in, #6@ 15.27 in, #7@ 18 in, #8@ 18 in, #9@ 18 in,
#10@ 18 in
Factored Pressure
Mu' : Upward
Mu' : Downward
Mu: Design
Actual 1-Way ShearAllow 1-Way Shear
Toe:#4@ 6.17 in, #5@ 9.56 in, #6@ 13.58 in, #7@ 18 in, #8@ 18 in, #9@ 18 in,
#10@ 18 in
phiMn = phi*5*lambda*sqrt(fc)*Sm
=# 6 @ 14.00 in
=
=
=
==
1,183
12,878
5,275
7,603
12.1630.25
Heel:
587
75
174
98
2.0330.98
HeelToe
psf
ft-#
ft-#
ft-#
psipsi
Heel Reinforcing =None Spec'd
Other Acceptable Sizes & Spacings
Key Reinforcing
Toe Reinforcing =# 5 @ 9.57 in
Min footing T&S reinf Area
Min footing T&S reinf Area per foot
If one layer of horizontal bars:
2.53
0.39
#4@ 6.17 in
#5@ 9.57 in
#6@ 13.58 in
in2
in2 /ft
If two layers of horizontal bars:
#4@ 12.35 in
#5@ 19.14 in
#6@ 27.16 in
supplemental design for footing torsion.
ij Mn 4,95724,363=ft-#
Key
3,718
34.0736.67
12,321
Detail #7
Page 36 of 41
02/04/25
Cantilevered Retaining Wall
LIC# : KW-06015083, Build:20.25.02.03 Solid Forms Engineering (c) ENERCALC, LLC 1982-2025
DESCRIPTION:8'-0" W/O SEISMIC LOAD
Project File: 4in HEEL - CANT - 2 to 1 slope.ec6
Summary of Overturning & Resisting Forces & Moments
.....RESISTING..........OVERTURNING.....Force Distance Moment Distance Moment
Item
Force
ft-#lbs ftft ft-#lbs
Sloped Soil Over Heel
574.34.75120.9=Surcharge over Heel
=
Surcharge Over Heel
=
=
Adjacent Footing Load
=Adjacent Footing Load
Axial Dead Load on Stem =
=* Axial Live Load on Stem
Soil Over Toe
Surcharge Over Toe
Surcharge Over Toe
Load @ Stem Above Soil
=
=
=
366.7 2.50 916.7=
=
=
Stem Weight(s)
=
1,220.7 5.50 6,713.9
Earth @ Stem Transitions
=Footing Weight
=
1,462.5 3.25 4,753.1
Key Weight
=
400.0 4.17 1,666.7
Added Lateral Load
lbs
=5,575.7
Vert. Component
Total
=
3,889.9 16,800.4
* Axial live load NOT included in total displayed, or used for overturningresistance, but is included for soil pressure calculation.
Total =R.M.
=1,700.3 O.T.M.
=
Resisting/Overturning Ratio =3.01
Vertical Loads used for Soil Pressure =4,587.0 lbs
Vertical component of active lateral soil pressure IS NOT considered in
the calculation of Sliding Resistance.
Vertical component of active lateral soil pressure IS NOT considered in
the calculation of Overturning Resistance.
Soil Over HL (ab. water tbl)
Soil Over HL (bel. water tbl)
440.0 6.25
6.25
2,750.0
2,750.0
Water Table
Buoyant Force =
HL Act Pres (ab water tbl)
HL Act Pres (be water tbl)
1,579.4 3.17 5,001.4
Hydrostatic Force
Tilt
Horizontal Deflection at Top of Wall due to settlement of soil
(Deflection due to wall bending not considered)
Soil Spring Reaction Modulus 250.0 pci
Horizontal Defl @ Top of Wall (approximate only)0.030 in
The above calculation is not valid if the heel soil bearing pressure exceeds that of the toe,
because the wall would then tend to rotate into the retained soil.
Detail #7
Page 37 of 41
02/04/25
Cantilevered Retaining Wall
LIC# : KW-06015083, Build:20.25.02.03 Solid Forms Engineering (c) ENERCALC, LLC 1982-2025
DESCRIPTION:8'-0" W/ SEISMIC LOAD
Project File: 4in HEEL - CANT - 2 to 1 slope.ec6
Code References
Calculations per IBC 2021, ACI 318-19, TMS 402-16
8.00
0.67
0.00
8.00
5,000.0
35.0
0.0
250.0
Criteria Soil Data
Retained Height =ft
Wall height above soil =ft Active Heel Pressure =psf/ftSlope Behind Wall
Height of Soil over Toe in
Water table above
=ft =
=
110.00=pcf
=
Soil Density, Heel
=Passive Pressure =psf/ft
Allow Soil Bearing =psf
Soil Density, Toe 110.00 pcf
Footing||Soil Friction =0.350
Soil height to ignorefor passive pressure =0.00 in
Equivalent Fluid Pressure Method
bottom of footing
Surcharge Loads Adjacent Footing Load
Load Type
40.0 Lateral Load =352.0 #/ft
40.0
0.0
0.00.0
Axial Load Applied to Stem
Wall to Ftg CL Dist =0.00 ft
Wind on Exposed Stem psf0.0=
Lateral Load Applied to Stem
Surcharge Over Heel =psf Adjacent Footing Load =0.0 lbs
Axial Dead Load
(Service Level)
=lbs
Footing Type Spread Footing
Surcharge Over Toe psf Footing Width =0.00 ft...Height to Top =5.30 ft Eccentricity =0.00 in...Height to Bottom =4.30 ft
NOT Used To Resist Sliding & Overturning
NOT Used for Sliding & Overturning
==0.0 ft
Axial Live Load =
Base Above/Below Soil
lbs
=
Axial Load Eccentricity ==Poisson's Ratio 0.300
at Back of Wall
in (Strength Level)
Seismic (E)=
Detail #7
Page 38 of 41
02/04/25
Cantilevered Retaining Wall
LIC# : KW-06015083, Build:20.25.02.03 Solid Forms Engineering (c) ENERCALC, LLC 1982-2025
DESCRIPTION:8'-0" W/ SEISMIC LOAD
Project File: 4in HEEL - CANT - 2 to 1 slope.ec6
Design Summary
Wall Stability RatiosOverturning =2.16
Global Stability =1.71
OK
Sliding =1.72 OK
Total Bearing Load =4,587 lbs...resultant ecc.=11.21 in
Eccentricity within middle thirdSoil Pressure @ Toe =1,115 psf OK
Soil Pressure @ Heel =82 psf OK
Allowable =5,000 psfSoil Pressure Less Than Allowable
ACI Factored @ Toe =1,649 psf
ACI Factored @ Heel =122 psf
Footing Shear @ Toe =16.4 psi OK
Footing Shear @ Heel =3.2 psi OK
Allowable =58.1 psi
Sliding Calcs
Lateral Sliding Force =2,052.3 lbs
less 100% Passive Force
less 100% Friction Force
Added Force Req'd
....for 1.5 Stability =
0.0=
1,361.5
2,170.1
==
0.0
-
lbs
lbs
lbs OK
lbs OK
-
Masonry Block Type =
Stem Construction 2nd Bottom
Stem OK Stem OK
Shear.....Actual
Design Height Above Ftg =4.00ft 0.00
Wall Material Above "Ht"=Masonry Concrete
Thickness =12.00 12.00
Rebar Size =##6 6
Rebar Spacing =16.00 8.00
Rebar Placed at =Edge EdgeDesign Data
fb/FB + fa/Fa =0.170 0.267
Total Force @ Section
=682.9lbs
Moment....Actual
=756.8ft-#
Moment.....Allowable =4,450.7 26,658.7ft-#
=4.9psi
Shear.....Allowable =44.9 58.8psi
Wall Weight =133.0 150.0psf
Rebar Depth 'd'=9.00in 9.63
Masonry Data
f'm =1,500psiFs=psi 20,000Solid Grouting =Yes
Modular Ratio 'n'=21.48
Equiv. Solid Thick.=11.63in
Concrete Dataf'c =3,000.0psi
Fy =60,000.0
Masonry Design Method ASD=
Load Factors
Building Code
Dead Load 1.200
Live Load 1.600
Earth, H 1.600
Wind, W 1.600
Seismic, E 1.000 psi
Service Level
=2,306.9lbsStrength Level
Service Level
Strength Level =7,119.9ft-#
Service Level
Strength Level =20.0psi
Design Method =ASD SD SDSD
Vertical component of active lateral soil pressure IS NOT
considered in the calculation of soil bearing pressures.
Anet (Masonry)=139.50in2
Detail #7
Page 39 of 41
02/04/25
Cantilevered Retaining Wall
LIC# : KW-06015083, Build:20.25.02.03 Solid Forms Engineering (c) ENERCALC, LLC 1982-2025
DESCRIPTION:8'-0" W/ SEISMIC LOAD
Project File: 4in HEEL - CANT - 2 to 1 slope.ec6
Concrete Stem Rebar Area Details
Bottom Stem Vertical Reinforcing Horizontal Reinforcing
As (based on applied moment) :0.17 in2/ft
0.0018bh : 0.0018(12)(12) :0.2592 in2/ft Horizontal Reinforcing Options :
============One layer of : Two layers of :
Required Area :0.2592 in2/ft #4@ 9.26 in #4@ 18.52 in
Provided Area :0.66 in2/ft #5@ 14.35 in #5@ 28.70 in
Maximum Area :1.5647 in2/ft #6@ 20.37 in #6@ 40.74 in
5.00
1.50
18.00
Footing Torsion, Tu =
=
ft-lbs0.00
Min. As %
Footing Allow. Torsion, ij Tn
0.0018
=ft-lbs
Footing Data
If torsion exceeds allowable, provide
f'c
0.00
=1,500psi
Toe Width =ftHeel Width =
Key Distance from Toe
Key Depth
Key Width =in
=in
=
16.00
24.00
3.50 ft
Footing Thickness =in
6.50=
Cover @ Top =2.00 in@ Btm.=3.00 in
Total Footing Width
=150.00 pcfFooting Concrete DensityFy =60,000 psi
Footing Design Results
Key:
=
#4@ 6.94 in, #5@ 10.76 in, #6@ 15.27 in, #7@ 18 in, #8@ 18 in, #9@ 18 in,
#10@ 18 in
Factored Pressure
Mu' : Upward
Mu' : Downward
Mu: Design
Actual 1-Way ShearAllow 1-Way Shear
Toe:#4@ 6.17 in, #5@ 9.56 in, #6@ 13.58 in, #7@ 18 in, #8@ 18 in, #9@ 18 in,
#10@ 18 in
phiMn = phi*5*lambda*sqrt(fc)*Sm
=# 6 @ 14.00 in
=
=
=
==
1,649
15,715
5,275
10,440
16.3930.25
Heel:
122
20
174
154
3.1530.98
HeelToe
psf
ft-#
ft-#
ft-#
psipsi
Heel Reinforcing =None Spec'd
Other Acceptable Sizes & Spacings
Key Reinforcing
Toe Reinforcing =# 5 @ 9.57 in
Min footing T&S reinf Area
Min footing T&S reinf Area per foot
If one layer of horizontal bars:
2.53
0.39
#4@ 6.17 in
#5@ 9.57 in
#6@ 13.58 in
in2
in2 /ft
If two layers of horizontal bars:
#4@ 12.35 in
#5@ 19.14 in
#6@ 27.16 in
supplemental design for footing torsion.
ij Mn 4,95724,363=ft-#
Key
3,718
34.0736.67
12,321
Detail #7
Page 40 of 41
02/04/25
Cantilevered Retaining Wall
LIC# : KW-06015083, Build:20.25.02.03 Solid Forms Engineering (c) ENERCALC, LLC 1982-2025
DESCRIPTION:8'-0" W/ SEISMIC LOAD
Project File: 4in HEEL - CANT - 2 to 1 slope.ec6
Summary of Overturning & Resisting Forces & Moments
.....RESISTING..........OVERTURNING.....Force Distance Moment Distance Moment
Item
Force
ft-#lbs ftft ft-#lbs
Sloped Soil Over Heel
574.34.75120.9=Surcharge over Heel
=
Surcharge Over Heel
=
=
Adjacent Footing Load
=Adjacent Footing Load
Axial Dead Load on Stem =
=* Axial Live Load on Stem
Soil Over Toe
Surcharge Over Toe
Surcharge Over Toe
Load @ Stem Above Soil
=
=
=
366.7 2.50 916.7=
=
=
Stem Weight(s)
=
1,220.7 5.50 6,713.9
Earth @ Stem Transitions
=Footing Weight
=
1,462.5 3.25 4,753.1
Key Weight
=
400.0 4.17 1,666.7
Added Lateral Load
lbs
=7,793.3
Vert. Component
Total
=
3,889.9
352.0 6.30 2,217.6
16,800.4
* Axial live load NOT included in total displayed, or used for overturningresistance, but is included for soil pressure calculation.
Total =R.M.
=2,052.3 O.T.M.
=
Resisting/Overturning Ratio =2.16
Vertical Loads used for Soil Pressure =4,587.0 lbs
Vertical component of active lateral soil pressure IS NOT considered in
the calculation of Sliding Resistance.
Vertical component of active lateral soil pressure IS NOT considered in
the calculation of Overturning Resistance.
Soil Over HL (ab. water tbl)
Soil Over HL (bel. water tbl)
440.0 6.25
6.25
2,750.0
2,750.0
Water Table
Buoyant Force =
HL Act Pres (ab water tbl)
HL Act Pres (be water tbl)
1,579.4 3.17 5,001.4
Hydrostatic Force
Tilt
Horizontal Deflection at Top of Wall due to settlement of soil
(Deflection due to wall bending not considered)
Soil Spring Reaction Modulus 250.0 pci
Horizontal Defl @ Top of Wall (approximate only)0.041 in
The above calculation is not valid if the heel soil bearing pressure exceeds that of the toe,
because the wall would then tend to rotate into the retained soil.
Detail #7
Page 41 of 41
02/04/25