Windows Version 2.2.0 Enhancements & Modifications
January 9, 2003
and Branch Selection - This version of TRIFLEX®Windows greatly expands the user’s options in selecting
components and forming a selection set. Components
may be selected/deselected individually by using CTRL-Left
Click when the select cursor (arrow) is on the component
in graphics mode, or when the focus is on the component
in the input spreadsheet. Groups of components may
be selected/deselected in a variety of ways as outlined
in the following table:
Selection of a single component
Click in graphics w/ select cursor on a component
Click on an Input Spreadsheet component
Selection of All Components
Click in graphics w/ select cursor
Menu/Edit/Select Current Branch
Menu/Edit/Deselect Current Branch
Selection of a Branch containing a component
Click in graphics w/ select cursor on a component
a Group of Components in the Component List
the Input Spreadsheet, CTRL-Left Click to Select
the First component, SHFT-Left Click on Last Component
to be in the selection set
a Group of Components in the Component List
Click on the Last selected Component in Input Spreadsheet
Selection Set – Once a Selection Set, consisting
of any subset of the piping system components, has been
defined using the controls described above this version
of TRIFLEX®Windows allows the display of the isolated
selection set. This is done using the new button on
the graphics toolbar:
. Pressing the button a second time brings the full
system into view once again, as does any input action
requiring a redraw of the system or a change in the
Selection Set – Given a contiguous Selection
Set, that is a subset which is geometrically connected,
those components may be renumbered based on a start
number and increment supplied by the user.
& Paste – A contiguous Selection Set may
be Copied into an internal clipboard using CTRL-C or
the Main Menu/Edit/Copy command. This clipboard may
then be Pasted back into the current piping system or
another open piping system in the same TRIFLEX®Windows
session. A dialog is brought up when the paste
operation is requested which asks for the node point
on the clipboard components and the node point on the
piping system components which are to be connected,
as well as axis sign change data used to transform the
clipboard system before the connection.
– A Selection Set, consisting of any subset
of components, may be deleted using the DEL key or Main
Menu/Edit/Delete command, however at least one component
must remain after the deletion. If the selection set
contains components that are between two non-deleted
components, a dialog appears asking the user whether
he wishes to connect the two ends which were occupied
by the deleted components or leave them in their current
position with a gap replacing the deleted section.
– A contiguous Selection Set may be Cut into
the internal clipboard using CTRL-X or the Main Menu/Edit/Cut
command. As with the delete operation, at least one
component must remain after the deletion. Cutting first
copies the selection set to the clipboard then deletes
it from the model.
& Redo – Every input operation that results
in a component change pushes the state of the system
into a buffer. At any time the user may recall the
previous state by doing an Undo operation, using CTRL-Z
or the Main Menu/Edit/Undo command. After having done
an Undo or series of Undo’s a Redo may be accomplished,
using CTRL-Y or the Main Menu/Edit/Redo command, moving
forward in the state buffer and, hence, nullifying the
previous undo command. Due to memory considerations,
the Undo/Redo buffer is limited to 32 operations, so
only the last 32 operations may be undone.
Component List – The underlying structure of
a TRIFLEX®Windows piping model is the Component List as shown
in order in the input spreadsheet. Occasionally, in
order to correct connectivity errors more easily, do
custom renumbering, or simply to arrange the components
into a more organized listing, it is convenient to be
able to reorder the component sequence in this list.
This version of the program allows the list to be modified,
using the Main Menu/Edit/Rearrange Component List command.
To use the command first, Select the components to be
grouped together and moved, and then fix the current
component. When the command is given, the Selected
components will be moved in the list such that they
immediately follow the current component.
Bar Update – The status bar along the lower
part of the screen now reports the number of components
presently in the selection set as well as the number
of components currently in the clipboard ready for pasting.
In addition, it correctly identifies whether there are
results ready for viewing or the user is in Input Mode.
Element – An option has been added to the release
element main tab to produce a pin element. A pin element
is defined, in the modeling sense, as a release element
with a single degree of freedom: rotation about a defined
axis. If this is the case, the element can be depicted
graphically as a cylinder whose axis coincides with
the rotationally free axis and whose diameter and length
may be defined by the user.
Steel Data Base – TRIFLEX®Windows has added to its database the entire range
of AISC structural steel sections, including W, M, S,
HP, C, MC, and L designations. In addition standard
flat and round bar as well as rectangular and round
structural tubing are included along with an option
allowing the user to specify custom dimensions for these
types. Areal properties including cross sectional area,
B and C axis and polar moments of inertia, and extreme
fiber distance from the centroid are automatically calculated.
View Errors Highlighted – As much as TRIFLEX®Windows tries to catch errors in input before a calculation
is run, occasionally a few cannot be detected until
the actual preprocessing and calculation is underway.
When an error is detected at this juncture, it is shown
in the event view, highlighted in RED
for easier location. The program mode pane of the status
bar displays the fact that a calculation error was encountered
until the user either recalculates the system or enters
into Input Mode to correct it.
Anchor Representation – Totally Free Anchors
are now distinguished from rigid or semi-rigid anchors
graphically by being drawn as disks with the diameter
of the attached piping rather than the rectangular block
associated with a fixed anchor. Occasionally, due to
the algorithm used in the Cut, Paste, & Delete mechanism,
these free anchors will be inserted into the system
automatically. They serve as location definition points
only and have no effect on system behavior as far as
displacement and stress calculations are concerned.
History Function Table – The Function Table
used in time history analysis may now be exported to
an ASCII file and imported from an ASCII file giving
external programs the ability to communicate with TRIFLEX®Windows.
Attributes Saved – The graphical attributes,
Node Numbers, Line Mode, Component Labels, and Selected
Components are retained during a save operation and
are available when the system is loaded again.
Labels – The string placed in the Name field
in the component dialog may now be displayed along with
node numbers in the graphical representation of the
piping system. By selecting ‘Component Labels’ in the
Main Menu/Setup/Graphical Preferences/Node and Component
Labels dialog, the labels will be displayed using the
graphical toolbar button:
Thinning of Node and Component Labels – Using
the dialog at Main Menu/Setup/Graphical Preferences/Node
and Component Labels, the user is now able to specify
an increment for node and component label placement
on the piping system graphics. Further selection of
which label should be displayed may be had using Label
Toggle functions on the component pop-up menu obtained
with a Right Mouse Click on the component in Graphics
Select Mode (arrow cursor).
Selected Components – The component
dialogs for pipe definition, process conditions, wind
and uniform loading, soil loading, and code compliance
data, may now ripple a change through all components
in the selection set, such that a parameter defined
on these dialogs may be changed en masse for any selected
group of components.
Highlighting – An error in which the highlighting
applied to nodes in the Code Compliance output spreadsheet
for which the node exceeded allowable stresses tended
to remain assigned to the original row following a column
sort of the data has been corrected.
Reports for Systems without Stress Calculations –
In previous versions of TRIFLEX®Windows, a system consisting of components for which
no stresses were calculated and a code compliance report
was requested. This has been corrected by graying out
the code compliance menu item if there is nothing to
of Previous & Next Buttons – Previously
when scrolling through the component list using the
Previous and Next Buttons on the component dialogs the
buttons would tend to jump around depending on which
type of component was brought up since all dialogs were
a different size. The dialog size has been standardized
which results in these buttons being located in the
same relative position on the screen independent of
the component being viewed at the time.
Hammer Time Calculations – When IU1 units were
used, the automatic calculation of water hammer timing
was in error. This problem has been corrected.
Spectrum Log – The Menu Item to view the response
spectrum log is now grayed out and inaccessible unless
a response spectrum has been run and a log is available.
Flange Selection – Previously the integral flange
on flanged valves were not being be shown as selected/deselected
in the graphic representation in conjunction with the
valve. This inconsistency has been addressed and now
the valve and integral flange are handled as a single
Component Changes – In previous versions of
TRIFLEX®Windows, while a change to various component settings
could be made directly in the spreadsheet without going
to the dialog, to do so would mess up the camera setting
when graphics returned. This problem has been resolved.
on Pipe Preceding Valve – When a pipe preceded
a valve in a combo element, the colored texture showing
displacement and stress output mapping would be reversed.
This has been corrected such that the values are correctly
displayed by the component coloring.
in Skewed Coordinate Systems – Dampers may not
be used with skewed coordinates. If dampers are required
X,Y, Z coordinates must be specified. Logic on the
component restraint dialog now assures this constraint.
Assigned Node Numbers in Mitered Bends – The
node numbers assigned in the preprocessing phase of
TRIFLEX®Windows to the separate points in a mitered bend
were at times in conflict with other node selected by
the system. This discrepancy has been rectified such
that node number assignment does not produce conflicts.
Stress Range in Euro Code -- The formula for
allowable stress range, fa, was missing the stress range
reduction factor U the value of the ratio of hot to
cold elasticity moduli, Eh/Ec. The correct value is
Tab Ripple – Rippling pressure and temperature
settings using the ‘Ripple Process’ button on the process
tab of the component dialog no longer carries the material
setting along with the change to other components, only
pressure, installed temperature, operating temperature,
and the designation of which temperature should control
the modulus of elasticity. The modulus of elasticity
and expansion coefficient data are reset appropriately
for all rippled components using each component’s previously
Compliance Output Graphics – The Code Compliance
Graphical output mapping now shows those values that
remain constant over the expanse of a component, such
as design wall thickness, with a constant color rather
than trying to interpolate between the values at the
end points of the component.
Description Report -- The Axis Description Report
in the output spreadsheet now adjust angles and filters
out all values not associated with restraints and expansion