Learn how to change member types and how to create a new member type.
- In the Definitions dialog box, note that Number 1 is selected and that it is set to the Member type: Simple Bar.
- Expand the Member type drop-down list and select Column. Change the Name to Column_1 as shown below. Click Save.
- In the Definitions dialog box, change the Number to 2, Name it Column_2, and change the Member type to Column. Click Save. The beams need to be changed as well, but the standard Beam Member type definition is not appropriate for this situation.
- In the Structure Definition toolbar, click
(Steel/Aluminum Member Type). - In the Member Type dialog box, highlight Beam and click
(New steel member type definition).
Note: Highlight the Member Type that is most similar to the new type that you want to create so that some of the basic properties are automatically applied. - In the Member Definition dialog box, in the Member type text box, type Beam_Roof.
- In the Lateral buckling parameters area, select Lateral buckling.
- Click Upper flange.
- In the Lateral Buckling Length Coefficient dialog box, click
(Beam) and set the Lcr to 0.2 lo as shown below. Click OK. 
- Repeat this process for Lower flange.
- The information in the Member Definition dialog box should now look like the example shown below. Click Save and then click Close.
- The new Member Type is now listed in the Member Type dialog box. Ensure that it is selected, type 3 4 in the Lines/Bars field as shown below, and click Apply.
- Close the Member Type dialog box.
- In the Definitions dialog box, set Number to 3. The Member type is already set to Beam_Roof. Verify that the Name is set to Beam_Roof_1 and click Save.
- Change the Name of Member 4 to Beam_Roof_2 if needed, and click Save.
- Save the project.
Note: Another way to check and modify member names and types is by using the Start Layout. Select the bars and then change the properties as shown below.
- Save the project.