Clips for attaching Cee Purlins to heavier purlins or beams.

[Mike L]

Looking for design guidance on the clips that attach purlins to other purlins or beams.
- Is there a requirement or standard on what gauge and yield strength these clips need to be?
- In general, are they only resisting uplift loads and potentially side loads?
- I've generally seen them as just bent steel angles. Didn't know if there is any benefit for having strengthen lips and/or gussets in the angle corner?
Thanks much, Mike

 

[dik]

No problem... a bent 'L' shape with or without holes for self tapping fasteners. As long as they are thick enough to resist the load... I don't see any issues. There's a PEMB engineer on the site; he may have some additional comments.

Rather than think climate change and the corona virus as science, think of it as the wrath of God. Feel any better?

-Dik

 

[RPMG]

The technical catalogs have design ratings and screw quantities/arrangements. A common way that engineers avoid this is to specify the purlin for pricing, and require a delegated designer to specify the actual material, connectors, fasteners, and calculations. Just make sure that the purlin is not undersized for pricing.