The Effective Prestress graph shows how the effective prestress or effective prestress force varies with both time and location for prestressing strands and post-tensioned tendons.

The graph controller, found on the left side of the graph window, is used to select the properties to be graphed and other graphing parameters.

Graph Controller Item	Description
Span, Girder	Select a span and girder
Prestressing Type	Select either pretensioning or post-tensioning graph
Permanent/Temporary	If Pretensioning is selected, select either Permanent or Temporary strands
Interval	Select the intervals for which to plot the effective prestress. Hold [CTRL] to select multiple, nonsequential, intervals. Hold [SHIFT] and select the first and last intervals in a range.
Stress/Force	Select if the effective prestress (fpe) or the effective prestress force (Fpe) is to be plotted
Show Grid	Toggles the grid
Show Girder	Toggles the girder