Light Steel Framing Analysis 1

[antbana]

Hello
I'm having a problem with light steel framing analysis.
How engineers often consider connections in structural analysis of LSF system? Pinned, fixed?

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For this image: all the connections are considered pinned?

Thank you for the answer

 

[jayrod12]

Yes all pinned. Or at least in 95% of connections.

 

[antbana]

Yes all pinned. Or at least in 95% of connections.

Thank you
What connection is fixed?

 

[canwesteng]

Seems pretty hard to develop the CFS with just screws, I'd have to be painted into a corner to use moment connections

 

[XR250]

Most are torsionally fixed. I can't remember the last time I saw a LG moment connection. Pre-engineered carports around here use them at the peak. I have seen the calcs on them and they seem sketch AF though.

 

[ANE91]

What is the problem, exactly? Idealizing any of these as fixed will give you more problems when you start thinking about deformations.

Treat it like wood: pin everything until you can’t.