Version 3.3.1 Enhancements & Modifications
April 5, 2010
1. Output Results and Code Compliance Printing - This version of TRIFLEX? incorporates a spreadsheet
printing capability initiated by using the Print Reports item from the Utilities Menu. This will allows
the user to direct the Input Spreadsheet, the Results Spreadsheet, the Code Compliance Specification
Spreadsheet, and the Code Compliance Spreadsheet for a selected case to an installed printer.
2. Column Heading File Designation - An item has been added to the setup drop down menu which will allow
the user to designate which file, in which location, he wishes to use as the column header input file.
Since this file is read and indexed prior to entry into TRIFLEX?, the designation will take effect upon
the next restart of TRIFLEX?.
3. Absolute Coordinate Precision - The precision with which absolute coordinate data is entered and
displayed in TRIFLEX? has been enhanced.
4. Structural Steel Dialog and Data Entry - The Structural Steel Dialog has been modified such that it
is easier to enter and edit data for the User-Specified structural shapes: square, round, and rectangular
bar, as well as round and rectangular tubing. A button has been added beneath the type designation
drop-down menu which becomes active if a user-specified type is selected. Depressing this button will
bring up the dialog with which the user can modify the size. If English units are in effect, the size
specification dialogs now accept fractional inch values as well as decimal inches. Further, if a
user-specified shape is selected for a component then the shape and size of that structural member is
carried through as the default values for the next component if it is also a structural member.
1. User-Specified Materials - User-Specified materials used in European Piping Codes
could not properly resolve the ratio of elasticity moduli, resulting in a failure when trying to execute
the code compliance report. This has been resolved.
2. Code Specific Materials - A modification of the pipe properties dialog no longer
allows the selection of materials for a piping code other than either Generic materials, including User
Defined and User Specified categories, or those materials from the data base associated with that piping
code. While existing jobs with mixed materials are still capable of being run, we suggest that these
jobs be set up with proper material designations in order to assure compliance with the piping code requirements.
3. Non-Linear Restraint Iterations - The algorithm which handled iterations for non-linear
restraints, specifically frictional restraints, has been modified such that it no longer can produce an iteration
with negative stiffnesses. Previously when these negative values became dominant they could lead to the dreaded
non-positive definite matrix error, even though the piping system was fully restrained.
4. Material Incompatibility - Since Version 3.3.0 Material Compatibility is enforced, that is
the only materials that can be specified in a piping system are from the generic data base, which includes
user-defined materials, and the data base pertaining to the piping code in question. Should an old data file
be encountered, which contains an incompatible material, TRIFLEX? now issues a warning message, urging the user
to correct the fault, rather than a Microsoft message pertaining to invalid parameters or possibly a program crash.
5. Structural Member Property Calculation - If non-English units were selected, TRIFLEX? would
erroneously calculate structural member areal properties of round, square, and rectangular bar, and as if the
numerical dimensions were in the input unit system selected. However, a 1x1 square bar means a 1 inch by 1 inch
square bar, per AISC standards, hence the dimensions of it are 25.4 mm by 25.4 mm when SI units are used for input,
NOT 1 mm by 1 mm. This oversight has been corrected.
6. Reducer Stress Intensification Factor - The stress intensification factor for reducers has
been corrected for the B31.8 and B31.5 piping codes. Previously the SIF for B31.8 was set by the program to be
1.0 instead of the correct value of 2.0, and for B31.5 it was set at 2.0 instead of the correct value of 1.0.
7. B31.8 Offshore Piping Code - The ASME B31.8 Gas Transmission and Distribution Piping Systems
piping code in TRIFLEX? has been updated in TRIFLEX? to include the optional thick wall calculation of hoop stress
allowed by the 2007 version of the code.