Example of Frame Bracing Definition

Note: Bracings have been defined in the 3D frame (see Example of 3D Frame Definition).

To define bracings in a 3D frame:

1. Open a project with a defined frame (see Example of 3D Frame Definition).
2. Draw an auxiliary line of the frame bracing between 2 columns using the AutoCAD^® – Draw > Line command (see the drawing below). Because both columns are of equal height, the other diagonal will be a mirror image of the diagonal positioned on the defined auxiliary line.
3. Click the Bracing option .
4. In the drawing area, select bracing lines, columns, and objects that define vertical limitations to define the position of frame bracings (see the drawing below).
5. On the Gusset plates tab of the Parametric structures - Bracing dialog, specify parameters:
   • For Gusset plate type, select Plate.
   • Under Gusset plate:
     • For Material, select Steel.
     • For Family, select Plate.
     • For Thickness d, select 0.5 in.
     • For Distance, enter 2 in.
     • For Plate width, enter 2 in.
   • Under Gusset plate position, select Center.
6. On the Central plate tab, accept the default values for the plate parameters.
7. On the Diagonals tab:
   • Select Crossed bracing.
   • Under Diagonal selection
     • Select profile LP 3.5x3.5x0.25, and family Profile.
     • Select Double (double-leg profile of diagonals).
     • Select Battens.
   • Under Diagonal location in relation to gusset plate
     • Select First diagonal in front of the plate.
     • For Crossing type, select Both diagonal cut
     • For Shortening s, enter 4 in.
   • For Diagonal insertion in relation to bracing system line
     • Select Middle.
     • For Rotation angle, select 0.
     • Clear Mirror.
8. On the Bolts/Welds tab:
   • For Connector type, select Welds.
   • Under Welds, for type of welds for gusset plates and profiles, specify 0.12-inch-thick fillet weld.
9. On the Angles tab, clear Generate angles.
10. On the Battens tab, define parameters for battens of double-leg diagonals:
    • For Definition method, select Number of battens.
    • For Connector type, select welds.
    • Under Batten size
      • For Length l, enter 4.
      • For Width w, enter 2 in.
    • For Number of battens for each leg, select 3.
11. Click OK.

The generated bracing with a part of the frame is displayed as shown.