Releases for beams

[Wendy_smith]

Hello, I am trying to determine how to assign releases to the beams in my model. See attached picture. I have a fixed support at the base of my columns. I want beams 4, 6 & 7 to be fixed-fixed at each end of the beam. How do I do that? I want it to be a fixed structure not pinned. Any help would be appreciated. Thanks

 

[Stephane.kapetanovic]

Hi @Wendy_smith

Beams are fixed by default

https://knowledge.autodesk.com/support/robot-structural-analysis-professional/learn-explore/caas/Clo...

Best regards 

[Wendy_smith]

So, the end release of a beam is already set as fixed? Can you explain what the different checked and unchecked boxes mean? I am new to Robot and cannot seem to find a good tutorial explaining this.

 

[Stephane.kapetanovic]

Hi @Wendy_smith 

In your case x=fixed, f=free.

For checkbox in dialog box, checked is released, unchecked is fixed.

Releases type for beams pinned-pinned give a release code xxxfff_xxxxff.

If you want fixed ends apply "DELETE bar release" to your beams.

Best regards 

[Wendy_smith]

Thank you for your reply. Does the same principal apply to columns? Are they presumed fixed as well?

[Stephane.kapetanovic]

Posts like beams. Be careful, there are supports and releases. To avoid confusion, do not combine the two in same node/end.