M. To create a truss model
To create a parametric truss model, use the following procedure.
- Select Truss Models from the Model Type drop-down list.
-
Select one of the parametric truss types by either:
- double-click on the type of model
- click-and-drag the model icon into the view window
- Pratt Truss
- Warren Truss
- Howe Bridge
- Lattice Truss
- Howe Roof
- North Light
The Select Parameters dialog opens. - Optional: Type a Model Name.
- Type the overall truss Length, Height, and Width distances.
- Type the No. of bays along length to define the number of equally spaced bay along the length of the truss.
- Optional:
To use unequaly length bays:
-
Click the
[…] adjacent to the
No. of bays along length field.
A dialog opens with the length of each bay.
-
Type the length of the different bays in the corresponding
Length cells.
Note: The total length of the bays must add to the overall length specified in the Select Parameters dialog. The precision should be to about 3 decimal places (e.g., 11.333).
- Click OK.
-
Click the
[…] adjacent to the
No. of bays along length field.
- Type the No. of bays along width to define the number of transverse bays.
- Optional:
To use unequaly length transverse bays:
-
Click the
[…] adjacent to the
No. of bays along width field.
A dialog opens with the length of each bay.
-
Type the length of the different bays in the corresponding
Length cells.
Note: The total length of the bays must add to the overall width specified in the Select Parameters dialog. The precision should be to about 3 decimal places (e.g., 11.333).
- Click OK.
-
Click the
[…] adjacent to the
No. of bays along width field.
- Click Apply.