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Excerpt
nameRoadway

The roadway definition is used for influence surface-based live load analysis. Based on the roadway definition, an influence surface path is generated and influence coefficients are computed. OpenBrIM Influence surface-based live load analysis automatically places lanes at the transverse locations, so the only important parameter to define is the extent of the roadway.

General

Bridge: Understanding the bridge data is crucial to identify the deck components where the roadway will be placed.

Roadway Dimensions: To define the start and end station of the roadway, users need to define at least two rows. If there is a variation in the roadway width, additional rows can be defined to accurately represent the variation.

  • Station[ft]: Station along the PGL

  • Transverse Offset: The transverse offset is measured from the PGL, where the PGL is defined as 0.

  • Right Width: The distance that goes towards the right side when looking up the station along the alignment line.

  • Left Width:The distance that goes towards the left side when looking up the station along the alignment line.

  • Skew: A skew angle of 0 degrees indicates that the line is perpendicular to the PGL. A positive skew angle rotates the perpendicular line in a clockwise direction, while a negative skew angle rotates it in a counterclockwise direction.

Roadway

The following parameters are used solely for 3D visualization purposes and are not used for finite element analysis.

Lane Width: The lane width is usually set to 12 feet and has no impact on influence surface-based live load analysis. It is only utilized for visual representation. The lane width for the live load analysis will be determined under the design lane definitions.

Lane Divider Spacing: Lane divider spacing in the longitudinal direction.

Lane Divider Width: Lane divider width

Graphical Thickness: The thickness of the graphical representation of the roadway can be defined here.

Number of Segments (Graphical):

Show/Hide [YES/NO]:

Right Shoulder Width (CADD):

Left Shoulder Width (CADD):

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