Bridge Component Layout Dialog Box
The Bridge Component Layout dialog box allows you to define the physical location, span information, bearing (skew), abutments/pier information, deck width and offset from alignment. The stationing for the beginning-of-bridge (BB) and the end-of-bridge (EB) is also defined in this dialog box. To open the Bridge Component Layout dialog box, click the Layout button on the Geometry tab.
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The Bridge Component Layout dialog box is used to define the physical location of superstructure connections. The physical location of these connections is specified using a stationing value from a common datum. The bearing of the superstructure connection is specified using an N-S degrees-minutes-section E-W value. You may also use the keyword NORMAL to denote a normal or radial connection, or the commend SKEW x.x where x.x is a positive or negative skew (from a normal) angle. The connection between the superstructure and abutments and bents is always assumed to be a roller support making the entire model a continuous beam model.
The Ref. Name attribute refers to the unique name of an abutment or pier defined in the Abutment/Pier Cap properties dialog box. Precast/Prestressed Girder checks the value of the stationing of connection items and marks items with equal stationings in red. The exception to this check is for the beginning-of-bridge and the end-of-bridge. The OK button becomes disabled until all red stationings have been corrected.