How to model PFC welded to bottom flange of UB (i.e compound member)

[Joe_Hughes]

Hi, as per the attached mark-up, how can I model a PFC member welded to the bottom flange of an UB member.

Context: I have modelled an existing roof truss in Robot, and the analysis shows the rafter to fail in bending under revised loading conditions. Therefore I'm proposing to stiffen the rafter by welding a PFC as explained.

Thanks.

[kevinj.888]

@Joe_Hughes Perhaps you can try to create a custom section.
Go to Tools - Section Definition 

 

Open 'Section Database' look at Item C20.

If this doesn't allow you to add PFC only on one side, then you can always create the two item independently

[Krzysztof_Wasik · Accepted solution]

Hi @Joe_Hughes 

Use Tools >Section definition module.

Refer to video