August 18, 2004
Minimum Temperature Limit Relaxation – Under
certain circumstances, provided specified testing is done
and certification is on hand, various piping codes allow
materials to be used below their nominal minimum temperature
limit given in the code documentation. A field is provided
on the Model Defaults dialog that permits TRIFLEX®Windows
to use such materials at reduced temperatures to the extent
that the expansion coefficient and modulus of elasticity
data are available.
Fatigue Analysis – Fatigue Analysis for ASME
B31.x piping codes, based on ASME Section VIII, Division
2, Appendix 5 guidelines has been updated to the 2001 release
of that code. This affects the suggested fatigue curve for
carbon, low-alloy, Series 4xx, high-alloy, and high tensile
steels, Figure 5-110. Here, the maximum number of allowable
cycles has been increased from 106 to 1011.
B31.3 Material Database – Several materials
in the internal B31.3 Carbon Steel database were entered
with extraneous spaces in minimum temperature field. This
error resulted in the minimum temperatures being calculated
incorrectly if these materials were used, and TRIFLEX®Windows
not being able to execute because material temperature limits
were not being satisfied. The problem with these materials
is now corrected.
B31.5 Code Compliance Dialog – Bringing up
the B31.5 code compliance dialog in version 2.5.1 or 2.5.2
of TRIFLEX®Windows would result in a program malfunction.
This issue has been rectified.
Flexible Joint Orientation Angle – The orientation
angle, specifying the Counter-Clockwise rotation of the
B axis of flexible joints from the MNU (most nearly up)
vector, could be inadvertently changed by the program if
the direction vector, denoted by the Delta X, Delta Y, and
Delta Z values, were changed to align with the C axis of
Flexible Joint User Specified Shape – The
dialog requesting sizing information for user specified
round bar, rectangular bar, square bar, and structural tubing
no longer intrusively appears when trying to edit a previously
A335 Grade P11 Steel – The internal database
entry for A 335, Grade P11 steel for use with the B31.1
piping code had erroneous allowable stresses listed at temperatures
higher than 750 degrees Fahrenheit. The entry has been corrected.
Diameter Change with Soil Interaction – When
changing pipe diameter or insulation thickness on the Pipe
Properties tab of a component dialog, the soil vertical
loading, load coefficient, and stiffness values are now
Structural Steel Extreme Fiber Distance and Moment of Inertia
Data – The data for extreme fiber distance
and moment of inertia has been corrected for the structural
steel shapes being read from the database. Previously the
data was being brought in with the B and C axes interchanged.
8. User Defined Structural Members – The
dialog for defining structural steel members has been modified
such that the entry fields correspond to and are labeled
the same as the equivalent fields in the Flexible Joint
Component Entry dialog.
Delta Dimension Fields – The entry dialog
for all components no longer accept blanks in the delta
dimension fields. A field that is left blank will be converted
to zero. Further exiting the dialog with a typographical
error in the delta dimension field is not allowed. An error
message is given when the user tries to exit under these
Structural Steel, ‘M-Type’ Beams –
The internal database has been updated to include data for
all M-type structural steel beams given in the AISC Steel
Construction Manual, rather than only a limited selection.
Invalidation of the Output Browse Facility –
In previous releases of TRIFLEX®Windows, once a run was
completed, opening of the component entry dialogs and switching
between the various tabs to review the input data, would
occasionally invalidate the output such that to again retrieve
the output spreadsheet or code compliance report would require
a new run. To a large extent this behavior has been corrected.
If the input data is not changed, the output should remain
viewable. If, on the other hand, input data is changed,
such that the input and output no longer agree, a new run
is required to revalidate the output screens.
Fabricated and Extruded Tees – From version
2.4.0 to version 2.5.2, the branch component dialog interchanged
fabricated and extruded tees, resulting in an incorrect
Stress Intensification Factor (SIF) being passed to the
calculator. Data files produced and saved by versions prior
to 2.4.0 while calculating correctly, would be shown erroneously
in the branch dialog. This problem is now corrected.
Miscellaneous Dialog Corrections – Several
dialog corrections have been made in this release pertaining
to spelling errors, grammatical inconsistencies, control
alignment, and tab stop sequencing. These modifications
are basically cosmetic and do not affect program performance.
Reducer Pipe Schedule – The inlet and outlet
pipe schedule fields on a reducer could give erroneous dialog
data following a selection on certain pipe sizes, depending
on how the pipe size data was entered into the database.
If, for instance with 12 inch pipe a schedule 80 pipe was
selected, while all properties and calculations would be
done for schedule 80 pipe size, schedule 80S would appear
in the schedule drop list. This anomaly has been fixed.
Response Spectrum Clustering Factor – The
Response Spectrum Clustering factor has been limited to
an input value greater than zero and less than one hundred
percent. Should values out of this range, including a blank,
be entered into the data field on the response spectrum
dialog, the value will be reset to five percent.