Structural steel
Commands
BIMAPPLYPROFILE, BIMLINEARSOLID, BIMSTRUCTURALCONNECT, BIMADDECCENTRICITY, BIMRECALCULATEAXIS, DRAG, BIMSTRETCH
How to use the BIM Profiles panel
- Drag and drop the desired profile from the BIM Profiles panel to the model space.Note: This command works in the same way as the LINE command.
- To define the starting point and the following point(s) click in the model space or use the dynamic dimension fields.
- Press Enter to end the command.
About BIMSTRUCTURALCONNECT
The BIMSTRUCTURALCONNECT command automatically generates connections for profiles.
For more information about this command, visit the Command Reference article BIMSTRUCTURALCONNECT.
Making a structural connection to linear solids
- Select the profiles you want to connect with.
- Launch the BIMSTRUCTURALCONNECT command. by typing it in the Command line or select StructuralConnect in the Model tab in the Quad.
- When the Hot Key Assistant is on (HKA on the status bar), a widget (as displayed below) appears on the screen. Tap the CTRL-key to cycle through the different options.
- Press Enter to accept the selected option and end the command.
About DRAG
The DRAG command makes it possible to alter a segment of a drawn profile without losing the connection to other segments.
For more information about this command, visit the Command Reference article DRAG.
Altering the positioning of segments
Note: This only works if the connections were created with the BIMSTRUCTURALCONNECT command.
- Set the value of DISPLAYSIDESANDENDS system variable to 1.
- Select a face perpendicular to the section of the profile.
- Launch the DRAG command.
- Click the mouse to set a new position for the segment. Or use the dynamic dimension field to enter a value for the displacement.
Procedure: use modeling tools to create a structural steel model
- Draw a BimGrid as a base.
- Launch the BIMGRID command.
- Click a starting point and enter values into the dynamic dimension fields.
- Draw a base slab underneath the grid.
- Create a slab using the BOX command.
- Ensure that the grid is entirely on top of the slab and that the axes of your profiles are displayed.
- Go to the Settings dialog and under the section. Ensure that Display Axes is checked.
- Open the Profiles panel and drag a structural steel profile into your model. Start drawing at the intersection point of two grid axes and draw vertically upward.Note: To snap specific points, make sure you have toggled on the different types of points you want to snap in the context menu when right-clicking on ESNAP.
- Launch the BIMPROPAGATE command.
- Select the slab as base solid and press Enter.
- Select the column as your detail element and press Enter. BricsCAD will zoom into the 3D detail. Press C to copy the column as a solid, not as a block. Note: The default setting for BIMPROPAGATE is to copy the object as a block.
- Hit Enter.Note: BricsCAD automatically copies the beam to every grid intersection. This is because you chose the floor slab with a BimGrid as your base solid.
- Hover over the green checkmark and click Bim Grid in the dialog box.
- Click Explode. You can now manually toggle individual suggestions to create the pattern of your choice.
- Press Enter to accept and end the command.
Create beams between the columns
- Open the Profiles panel and drag a structural steel profile into your model. To set the start and endpoints, click the top of the column and then the next. Do this in both directions.Note: If you want to turn your profiles to make the flanges are facing upwards, press Q (from Quarter turn). The profile will turn 90 degrees around its axis.
- Drag and drop a beam profile from the Profiles panel onto this beam. Give the second beam a large profile, as it has a longer span.
- Select a beam and launch the BIMADDECCENTRICITY command to alter the relative position of the axes of the beams.
- Click the down arrow. The beam moves down in relation to its axis.
- Press Enter to end the command.
- Repeat steps 3-5 for the other beam.
- Select the column and the two beams then launch the BIMSTRUCTURALCONNECT command to make a simple connection. Press Enter to accept the default option.
- Repeat step 7 for the other 2 junctions.
- Select the two columns connected to the beam in the Y-direction and launch the BIMPROPAGATE command.
- Select the beam in the Y-direction as the detail solid.
- Press C to copy it as a solid, not as a block.
- Press Enter.
- Choose which suggestions to accept. Press Enter to accept and finish the command.Note: Suggestions are made at the bottom of every column because the situation is symmetrical. You can toggle the suggestions off.
- Repeat steps 9 - 13 to create beams on the X-direction.Note: You can use box selections to select all the lower beams at once.
Move a Beam
- Set the value of DISPLAYSIDESANDENDS system variable to 1.
- Highlight the side face of the desired column and launch the DRAG command.
- Move the column to the desired position.
Procedure: use the modeling tools to create a more detailed connection
- Set the value of DISPLAYSIDESANDENDS system variable to 0.
- Launch the BOX command and hover over the side face of the column.
- Press Shift once so that the face is highlighted in blue.
- Now draw a plate on the flange of the column.
- Select the beam and launch the SUBTRACT command.
- Select the endplate and press Enter.
- Select the face and launch the BIMIFY command from the Quad.Note: You can also Classify the plate manually by Quad selecting Classify Manually in the BIM tab.
- Open the Library panel and drag a bolt onto the plate.Note: You can position it precisely by entering values in the dynamic dimension fields.
- Select the plate and launch the BIMPROPAGATE command.
- Select the bolt as the detail and press Enter.
- Press Enter again and click on the blue question mark. It will turn into a green checkmark.
- Hover over the checkmark and select Grid.
- Add one row.
- Press Enter to end the command.
Procedure: using BIMSTRETCH to modify structural steel
- Open a New drawing.
- Open the Profiles panel by clicking on it on the right-hand side of your screen.Note: If the Profiles panel icon isn’t visible yet, right-click on the ribbon and check BIM Profiles in the context menu under Panels.
- Drag the profile you want to draw a structure with within the model space.
- Draw a column with a height of 3000 mm. Don’t exit the command and draw a connecting beam with a length of 5000 mm horizontally. Now, add another column at the end of the beam. The height of this column is also 3000 mm.Note: Make sure you turned the profiles in the right way.
- Select the 3 beams and select Connect Structural in the ribbon or select the command from the Quad. You will be able to choose which connection you prefer. Choose the L-connection option and press enter. Your entities are now connected.
- In the ribbon, make sure you enable the Display sides and ends and Prioritize selection of Faces. You can find them in the Structural/MEP – View tab or set the value of DISPLAYSIDESANDENDS system variable to 1 and SELECTIONMODES system variable to 2.
- Check if the profiles are correctly classified as Beam and Columns.
- Launch the SLICE command and slice the beam in the middle.
You will be prompted: Slice along axis? Press Enter to accept the default option (Yes).
- Select the midpoint of the beam and press Enter. Your beam is now sliced into two beams.
- Select the 2 ends of the beams in the middle of the structure. They will be highlighted in yellow.
- Quad select the BIMSTRETCH command in the Model tab.
- Hover orthogonally upwards, enter a height of 2000 mm and press Enter to accept.
- The result should look like this.
As you can see, the connections between the profiles are automatically adapted to the new angle between the entities.Note: If you would only have selected one of the two side-ends in the middle of the beam, the connections on the side that was not selected won’t be included in the stretch and will look like this: