Maintenance Announcements

The current version is Retain Pro 9, released November, 2009. For most current release of this version, including changes made for each release, see Retain Pro 9 Advisor on home page.

Prior version Retain Pro 2007 is no longer available. The latest release of that version was 2007R. A history of updates made during its availability are listed below:

1. Fixed erroneous stress ratio on stem screen when seismic self weight is activated.
2. On Options screen under Use of Vertical Component of Active Pressure, deleted option to use this to increase sliding resistance or reduce soil pressure, but retained the option for increasing overturning resistance. Most texts and our geotechnical consultant advise using this added vertical force only for increasing overturning resistance. Also deleted use of vertical component for level backfill slopes and seismic forces.

1. Fixed the "STEM OK" message
2. On CalcTrac:
   Moved Retained Height to top
   Added Force of water over heel
   Added Seismic due to self weight
   Added Surcharge over heel
   Added Pier foundation information
   Removed unnecessary information when Pier used.
   Added multiplier of 12 to toe soil pressure to match report.
   Removed duplicate Bar Lap Lengths.
3. On Overturning Tab separated "Surcharge over Heel" from "Heel Active Pressure", also on report.
4. Added: NOTE: Bowlegs' Foundation Analysis & Design recommends using the above vertical component selection only for Overturning Resistance, and only when there is a sloped backfill.
5. Added Apply S.F. to Allow. Passive to Pier input and on summary screen and report and added Actual Passive Pressure.
6. When pier foundation used, removed from report: "Resisting/Overturning Ratio" and below replaced with: "Pier foundation. Forces and moments displayed are applied at top of pier."
7. Fixed fb/FB + fa/FA on report, was different than on screen.
8. Fixed "LAP SPLICE IF ABOVE", "LAP SPLICE IF BELOW" and "HOOK EMBED INTO FTG" on report, they were different than on screen.
9. Re-added version to title bar.

1. Corrected Equation Menu print problem.
2. On SRWs, corrected data for World Block.
3. Replaced revised users manual to Help & Tutorials
4. Corrected stress ratio axial load interaction display
5. Corrected unit designations on segmental walls
6. On stem screen deleted "Use Full Stresses" option since with the demise of UBC '97 the default is always use full stresses.
7. Added Axial Live Load to display as separate item on Resisting Moment table.
8. Added clarifying explanation to Added Lateral Load screen.
9. Added a few clarifying notes throughout.

1. Reinforcing callouts added to pier foundation report.
2. On segmental walls option added World Block
3. On segmental wall added offset information for Redi-Rock
4. Corrected scaling problem on some Diagram screens
5. Added more input information on pier foundation option report.
6. Changed title block on report to require inserting company info.
7. Corrected seismic self-weight display on overturning table.
8. Edited seismic self-weight input screen -- revised note.
9. Corrected CalcTrac soil bearing error.
10. Corrected discrepancy between input screen and report for masonry LRFD stem shear.

1. Simplified AutoUpdate procedure and fixed network activation problem.
2. Corrected some cases of hidden text on Wizard.
3. Corrected US – SI unit conversions for rebar in footings.
4. Changed building code selection from "IBC 03 & 06" to "IBC 2006".
5. Added pdf file for revised users manual under Help & Tutorials (now contains design example for pier foundation).
6. Corrected an instance of report printout not agreeing with on-screen values.

1. Updated Users Manual with Design Examples now posted (pdf) under Help & Tutorials
2. Increased segmental walls permitted heights to 30 feet.
3. Corrected correlation between print report and onscreen for "Seismic due to self-weight".
4. Corrected erroneous shear calculation for masonry stems (not critical).
5. Added capability for different soil density on toe side for tapered walls.
6. Added capability on pier foundation to input depth to neglect for skin friction.
7. Added offset selection for UltraBlock on gravity SRWs.
8. Now display pier diameter and reinforcing on pier foundation construction drawing.
9. Corrected inability to select current date for printing reports.
10. About a dozen minor text and message wording clarifications.

1. Updated building code selections on CalcInfo
2. Fixed some unit conversions
3. Corrected footing allowable shear factor to phi = 0.75
4. Corrected lap length discrepancy on report printout.
5. Revision to SRW Geogrid drop-down menu.

1. Fixed geogrid drop-down selections.
2. Enabled switching between cantilevered and retrained walls on Criteria screen.
3. Added building code selection for "CBC 2007"
4. Fixed disabled unit conversions (SI >< US)
5. Corrected phi for concrete shear to 0.75.
6. Fixed lap length on screen not mtching printout.

1. Now allows switching between cantilevered and restrained walls, on tab bar, per requests.
2. Corrected pier foundation embedment depth calculation when lateral support is present, and corrected vertical load eccentricity applied to pier.
3. For segmental geogrid walls, set lower limit of base width to 60% of retained height, per code.

1. Added a missing file to improve access to AutoUpdate

1. Added option for varying densities on either side of wall.
2. Corrected CRSI equation in Equation Menu
3. Editing changes on stem screen for LRFD design.
4. Revised lap splice lengths on stem screens.
5. Various typos and clarifications.