Add Pop Out Bay Trusses

You can use this function to define a pop out bay truss area, and add trusses to it with even intervals. The slopes you select and the truss parameters will define the shape of the trusses.

1. Select Trusses > Special Trusses > Pop-Out Bay Trusses.
2. Select the truss parameters. The previously selected parameters are the default parameters. You can reselect the parameters by using the function Edit truss parameters on the contextual toolbar.

   Pop Out Bay Truss Parameters

3. Select the upper limiting structures, or the slopes of the bay window roof. Select several slopes with the Ctrl key pressed down or by using area selection.
   
4. If necessary, edit the truss area by adding or removing sections of roof slopes. You can select following auxiliary functions from the contextual toolbar:
   • Add Slope Extension
   • Set Slope Shape
   • Cut Slope Shape
   • Define Limiting Plane
   • Deleting Slope Shape
   • Editing Slope Shapes
5. Select Confirm.
6. Define the bottom chord of the trusses. Do one of the following:
   • Select the lower limiting structures, for example the ceiling. If the structures are added in drawing-model pairs of their own, select the structures in the 3D model. If necessary, you can hide the geometry of the roof or ceiling from the model to make it easier to select the right structure, see Selecting a Roof/Ceiling.
   • Enter the support height and select the points of the limiting area. Select the function from the contextual toolbar:

     Define Limiting Plane

   • Select directly the Confirm function. The bottom chord of the trusses will be determined by the roof volume in the model.
7. Select Confirm.
8. Select the support structures. You can edit the selection by clicking a selected structure to remove the selection.
   
9. Select Confirm.
10. Select the main bay window roof slope.

    

    The program will add trusses to the main slope, and also to side slopes, if you selected the check box Side trusses in the Truss Parameters dialog box.

    

Note

• You can later edit the truss area using the following functions:
  • Edit a Truss Area - editing involves the exact same steps as adding a truss area.
  • Update Truss Shapes - you can reselect trusses' upper and lower structures. In addition, you can define the distance between the top or bottom chord of the truss and the limiting structure.
  • Generate Trusses - you can reselect truss parameters.

Special Trusses