PGSuper  3.1
Precast-prestressed Girder Bridges
Girders

Define the girder type and spacing.

Click on the combo box to select between defining parameters for the entire bridge or for just this span.

Item Description
Number of Girders Enter the number of girders
Girder Type Grid Select the type of girder for each girder line
Girder Spacing Use the drop down list to select how and where the girder spacing is measured
Girder Spacing Grid Enter the spacing between girder lines
Locate Use these parameters to transversely locate the girders
[Copy to End/Start of Span] Press to copy the girder spacing information to the opposite end of the span

Using the Grids

Use the grouping features to create groups of girders or spacing.

The grid can be expanded to provide a column for each by selecting the column heading, right clicking, and choosing the Expand command

Expand.bmp
Expanded.bmp

Select columns to join together, right click and choose the Join command

Join.bmp
Joined.bmp

Transversely Locating Girders

The girders must be located transversely with respect to the alignment. The location of the girder is measured in the same direction, and along the same line, as the girder spacing.

Item Description
Locate Drop Down List Select a specific girder, or "Center of Girders", to locate transversely. "Center of Girders" is the mid-point between the centerline of the left and right exterior girders
Location Enter the location of the selected girder
From Drop Down List Select the location from which the selected girder is measured.