v4.5.5.0
New Features
Mildly reinforced members now use effective moment of inertia for deflections instead of bilinear deflections.
Added warnings for reducing shear / torsion demand near support when we detect that it may be inappropriate to do so
Expanded section property tables in output
Added more options on computing shear capacity of composite sections
Program Changes
Default files now correctly set the date to the current date
Dash out flexure rows where capacity is not calculated
Distributed load grid split into area load and line load grid to help differentiate the loads for the reviewer.
Topping surface type changes to just intentionally roughened or smooth. If roughened, the program will check if reinforcement is required, if smooth minimum is always required.
Expanded help documentation on the website. Use Help → User manual or F1 to get to it.
Mechanically anchored reinforcement now instantly develops tension and compression.
Load bearing width for ledge design changed from 3 inches to 4 inches.
Prestress losses added to detailed flexure printout
Bug Fixes
Fix issue where composite members could get stuck in the analysis
Fix issue for the PCI Method of Horizontal Shear resulting in higher demand
Plain concrete strength now removed as an option as it was primarily used for sections with very low demand (which is handled differently now)
Fix issue resulting in lower than expected d values for shear. This was intermittent and only slightly conservative (<5% in d value)
Fix issue where load descriptions were being added to output incorrectly
v4.4.0.0
New Features
Length input can now use a - or a space as a delimiter between feet and inches.
Added input of the Nu/Vu ratio for bearing. This value can be used to set Cr to 1 if set to 0.
Added the design number to the project information on the design criteria tab
Project description now supports multiple lines. Just press enter to add a new line.
Now calculated P/A used for DT Stem Mesh. Results displayed below shear output on Strength summary
Added deflection option to use either midspan section properties or to vary by location.
Added self weight multiplier to vibrations analysis. Vibration analysis now only includes self weight and weight of participants for the total weight. Often time this weight should be higher, for those cases the self weight multiplier can be used.
Program Changes
Interface has been cleaned up in multiple areas for better readability.
Performance summary was reformatted. Since a loading summary exists now, the loads were removed and a summary of bearing was added in.
Default files were updated to contain new default settings.
When checking φMn to 1.2Mcr, the cracking moment will now longer user the corresponding dead load factor from the given load combination but will instead use a service load factor of 1.
Fixed issue for composite lightweight members where losses and deflections were using a slightly higher elastic modulus than expected
Handling tension limit changes
Any initial stage using transfer limits will now display and compute Astt
Tension exceeding the cracking stress will now display as a warning instead of an error
Bug fixes
Fixed issue where false horizontal shear errors were being thrown.
Fixed issue where upward live load deflections were not being shown on individual service combinations.
Fixed error where the program was using the Class U limit as the cracking stress limit and not the modulus of rupture.
1.2Mcr is now back in the flexure graphs.
Attempted fix for the reinforcement tab not refreshing when reinforcement was added.
New Documentation and Hand Calculations
New help pages on cracking moment, flexure capacity, double T stem mesh limit, and transformed section properties.
New hand calculations, posted on their corresponding help pages, for cracking moment, deflections and transformed section properties.
v4.3.3.0
Now use plain concrete shear strength ACI 318-14 14.5.5.1 as a minimum shear strength
Added option for mildly reinforced beams to limit the shear depth to 0.8h
Final fix for installer. v4.3.0 to v4.3.2 may not have installed correctly.
v4.3.2.0
Fix issue with bad installer
Attempted to fix reinforcement input not updating and requiring a restart
Can now select which loads get distributed for hollow core slabs
Fixes where phiMn would be displayed lower than anticipated
Printing issue fix
v4.3.1.0
Fix issue with bad installer
Fix isolated issue where plain concrete strength could not be computed
Graphical fixes for overlapping C bars
v4.3.0.0
Added detailed flexure capacity section of analysis report
Performance improvements
Added label to flexure table to indicate tension, compression, or transition controlled
Added service reactions to service summary
Fix error where Vu.Max and Tu,Max were being hidden from the Zia Hsu torsion table
Hide compute topping profile when no topping is present
v4.2.0.0
Fix error in last update not applying all changes
Added in tool to set topping profile
Mild development now checks ACI 318-14 24.4.2.2 and 24.5.3.2 both.
Misc. UI bug fixes
Fix problem where false errors were being reported
Fix printing issues
v4.1.0.0
Polygonal Section Improvements
Easier to reorder points
Clean up polygon okay to make it more compatible with the analysis
Easier to paste vertices in
Bug fixes
Fix incorrect transverse reinforcement errors
Deflection multipliers now correctly only applied to the elastic analysis results
Can now add eccentricity to the member self weight
Analysis no longer crashes when self weight set to 0
Fix error causes strand to not develop correctly if debonded
v4.0.0.0
Concrete Extents
Added Bulb T Beam as Section Type
Added in bay width for effective topping width computation
Structural Model
Can now label loads
Reinforcement
Can now insert transverse Reinforcement
Can be inserted as bars or use mesh sheets
Supports multiple bar shapes and end conditions
Design Criteria
Added input for transverse bar strength
Reorganized inputs for material properties
Simplified deflection options
Option on how to treat composite members for shear
Release now always includes self weight
Analysis Report
Added load summary to summarize all loading on the members
Redesigned all tables to support future options
Recreated shear and torsion tables to clarify output and to better facilitate inputting transverse reinforcement
New online documentation
Now accessing the help document will take you to our website
This will be updated based on all user questions and will continue to evolve over time
Deflection Changes
No longer use the effective moment of inertia method but the bilinear deflection method
Replaced effective section properties from service tables with cracked section properties
New method is described, with a hand calculation, in the help page
Shortening Calculation
Now compute shortening of the member due to prestress and flexure for erection
Can be seen in the deflection output
New method is described, with a hand calculation, in the help page
One-Way Shear Changes
Cleared up some labels on options
Can now include the topping in the concrete shear strength
Automatically adds the critical shear to the shear tables
v3.6.2.0
Torsion Bug Fixes
Program now appropriately includes the topping when calculating the horizontal shear area using the ACI method
Fixed labels on coordinate system in 3D model
v3.6.1.0
Torsion Bug Fixes
Slender Spandrel method is now accounting for bearing length
Previously the end region was measured from centerline of bearing, this was causing the transition region to start too soon
Zia Hsu Method now properly checks for plate bending near the ends and had a bug fixed in the Vc calculation
v3.6.0.0
Fixed bug introduced in v3.5 where the end of the strand was starting fully developed
Added flexure point moments
v3.5.0.0
Fse for transfer length now uses the lose computed at the center of the strand
'd' is now computed for sections where the reinforcement has no effective area (fully undeveloped)
Added options to ignore loading on cantilevers to assist in modeling simply supported members
Updated deflection calculations to properly use Eci for selfweight and prestress deflections per the PCI Design Handbook
Added fixity conditions to model fixed ends
Selected on the structural model tab
Can chose at what stage the member becomes fixed
v3.4.0.0
Transfer stress limits are now available for use for handling stages when member is not prestressed
Fixed issue where ‘Show Additional Checks’ was not available for printing options
At will not longer be reported being negative
Can now position reinforcement in topping
Fixed issue where shear and torsion table were not correctly reporting controlling values
All tables now in feet for position on the member
Remove custom strand size
v3.3.0.0
Hollow Core Slab Load Distribution
Added input on Structural model tab for load distribution of non-area loads for hollow core slabs
New Shear Tables
Added Av Required for Vcw and Vci for Double Ts
Redesigned layout of tables
User can now edit locations where analysis is performed
Interface can be accessed from File → Analysis Points
User can now edit locations where results are displayed
Interface can be accessed from File
Added option to ignore stresses in topping
Can now ignore topping stresses. Their values in in tables will be replace with a '-'
Fix pasting error in polygonal editor
Will no longer put ‘NaN’ in Y column when pasting data
v3.2.0.0
Added reactions to strength combination results
Fix error in sync data
Fix printing error causing ledge input to be shown
Fix for HCS not converging on flexure capacity
Fix bug in automatic topping thickness computation resulting in non-symmetric sections
v3.1.0.0
Add option to ignore certain distance of the ends of the beam when looking for controlling flexure section
Fix error in the 3D model
Fix some display issues
Fix bug which was causing the bottom stresses in the topping to be set equal to the top section of the precast