Key Benefits
- Cantilever retaining walls
- Gravity retaining walls (ACI Chapter 22 provisions)
- Restrained walls (e.g. basement wall, propped
cantilever)
- Wall stems may be concrete or masonry (or mixed)
- Wall stems may be tapered (battered) or stepped
- Design checks for concrete or masonry
- Wide variety of loading types
Building Code Support
- IBC 2015, 2012, 2009, 2006
- ACI 318-14, 318-11, ACI 318-08
- MSJC 2013, 2011, 2008
- CSA A23.3: 2004, 1994
- ASCE 7 (Load Combinations) w/automatic vertical seismic component
- AASHTO Earth Load Factors (optional)
- Unreinforced stem (gravity wall) checked via
unreinforced provisions of ACI Ch. 22
- Unreinforced heel/toe checked according to ACI Ch.
22 (e.g. very short heel/toe)
- Custom load combination sets can be entered (rather than
just a single combination)
- Masonry load combinations are fully exposed &
customizable
- Stability load combination is customizable
Geometry Inputs
- Full gravity wall support: All components
(stem/heel/toe) can be unreinforced
- Footing bars auto-extend full width
- Two curtains of reinforcement
- Shrinkage & temperature reinforcement (for complete
detailing, it is not 'checked')
- Different f'c values for footing/stem
- Different fy values for footing/stem
- Different weight values for footing/stem (e.g. can model
buoyancy in footing)
- Option to "turn off" heel/toe reinforcing (checked as
structural plain concrete)
Loads Inputs
- Line/strip surcharge can be applied at a depth below
backfill (e.g. for a buried footing)
- At-rest earth pressure (frequently used for restrained
walls)
- Specify backfill depth from footing top or bottom
(optional)
- Specify the unit weight of the water in the backfill (so
it need not be water)
Results Displayed
- All resultant pressures on the wall are illustrated
graphically, along with the underlying equations
- Wall lateral displacement
- All building code equations are displayed, worked out
with project-specific values
- Pictures of the wall, or of a relevant part of the wall,
accompany many calculations
- Building code provision displayed next to all checks
- Transfer forces across stem joints.
- Graphics plot of stem moment capacity and applied moment
- Graphics plot of stem shear capacity and applied shear
- Summary table of all checks including name, required
value, provided value, required/provided ratio, and
controlling load case
Reporting
- Improved check summary table replaces previous poorly
organized check displays
- Job number input for display in report header
- Detailed report including all design calculations &
diagram
- Concise summary report
- Full-page drawing report with fully detailed drawing of
wall cross-section and elevation
- File name printed at the bottom of all report pages
- Report headers display basic company information, plus
project title, notes and job number
- Your company logo displayed in report header (optional)
- DXF file export
Calculations Exposed
- Code provision reference printed with each group of
equations
- Explicit calculation & display of lateral pressures on
the stem only
- Table listing forces used in bearing force calculation
- Clearer than old equations
- Stem shear is graphed (illustrates shear @ section
junctions)
- Check summary side pane shows unity (required/provided)
ratio
- Check summary view has more information (e.g.
controlling load combination)
- Lateral support reaction prominently displayed right
on-screen in force calculations
- Checking of multiple load combinations now much more
exposed
- Bearing eccentricity check now calculates & displays
actual e, allowable, & ratio
- Development & lap lengths calculations are clearer and
organized onto a dedicated tab
Engineering Options/Assumptions
- Option to indicate sliding restrained by external entity
(e.g. slab)
- Option to include or neglect the bearing pressure
beneath the heel for strength checks
- Option to ignore stabilizing contribution from passive
pressure @ toe
- Options to include the vertical component of the
backfill pressure for overturning, sliding, and bearing
pressure checks (individual option for each)
- Option to include surcharge forces in the sliding and
overturning checks
- Option to use surcharge forces for bearing pressure
calculation
- Option to neglect the weight of the soil over the toe
- Option to factor earth weight as either dead load or
earth load
- Option to use toe passive pressure for bearing
- User-specified coefficient of friction between footing &
subgrade
- User-specified wall friction angle (used if backfill
pressure is calculated via Coulomb theory)
- Automated Design Commands (Optional)
- Automatically choose footing reinforcement
- Automatically choose stem reinforcement
- Automatically sets required bar embedment lengths and
lap splice lengths
- Automatically positions key to embed stem bars, also
such that reinforces key
- Automatically designs shear key to resist sliding
- Specify preferences used in all design functions: which
bars are available, which spacing to use, which length
increments to consider, etc.
Project
- Multiple projects in a file, organized in a tree on a
"home" page
- Menu to quickly create walls of a particular type
(cantilever, restrained, gravity)
- Have a 'Notes' page where you can enter project-specific
comments (printed in report)
General Interface Features
- Perpendicular wall view (much easier to see
reinforcement layout)
- Colors customizable (separate for screen & printout)
- Hook extensions are displayed offset from bars they
parallel (easier to see)
- Equations improvements (square roots drawn, no bold
braces, clearer font)
- Stem sections are dimensioned and have improved labeling
- Double-click to edit stem sections
Limitations (potential future features!)
- Segmental/MSE walls
- Multi-level basement walls (multiple lateral supports)
- Soldier pile walls
- Shrinkage/temperature reinforcing may be entered, but it
is just for detailing, it is not "checked"
- Rock anchors
- Walls without footings
- Walls on pile foundations
- Counterfort walls
- Strength design of masonry walls (currently only ASD)
- Sheet pile walls
- Multiple soil layers (other than a saturated layer
beneath the water table)
Example Project Solved
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