OpenBridge Modeler

Place Sleeper Slab

To place a Sleeper Slab supporting the approach slab at the start and/or end of a bridge use the following procedure.

You must use an existing Sleeper Slab template. Your model must have Approach Slab defined before placing a Sleeper Slab.

  1. On the Home ribbon tab, select the Place Sleeper Slab tool in the Approach Slab group.
  2. Check Place options for either start and/or end of bridge.
  3. Select the template to use.
  4. (Optional) Horizontal Offset, transverse offset if any.
  5. (Optional) Longitudinal Offset if any.
  6. (Optional) Conform Backwall with Approach Top, for L or T shaped abutment backwalls to follow slab top shape.
  7. (Optional) Conform with Approach Bottom, if the ledge needs to follow the bottom slope of the slab
  8. (Optional) Clear the Add Constraints check box if no additional placement constraints are required.
  9. (Optional) Apply Skew to Solids, so the ends are squared off in line with the slab.
  10. In the view window, data point to accept, and see the sleeper slab solid placed.

    If you checked the Add Constraints option, then the Solid Constraints Definition dialog opens.

  11. (Optional) Specify any necessary point or variable constraints along the deck and then click Apply.
  12. If variable constraints are being specified, the template tab shows the effect of the variations defined at user defined distance (use the slider or enter cross section distance).

While a 3D Sleeper Slab object is placed following the vertical profile elevation, a 2D sleeper slab footing layout (decoration) is placed at elevation 0 in the model. This 2D layout is updated whenever the sleeper slab object is changed, and the line work has the necessary features associated to place it on a separate Level.