To select hollow sections in StruBIM CYPE 3D, from the “Bar” menu, use the “Describe” option on a bar or group of bars.
Find the "Square cold-formed box", "Rectangular cold-formed box", "Circular hollow section" or "Rectangular hollow section" families in the area for built-up sections with rolled steel plates or cold-formed steel sections.
Then define a section series and select a particular section from the drop-down menu. For several of the indicated families, the "Import of predefined section series" option can be used for different catalogues and manufacturers.
The complete process can be seen in the following video:
