Instability issue in node that do not exist

[Hamza.BA]

Hello

i have instability issue in steel frame structure model , it says that there is instability in node 933 while the model does not contain any node with this number ,

thanks

[Krzysztof_Wasik · Accepted solution]

Hi @Hamza.BA 

Instability is reported in calculation node, generated for member force. In your model instability has no influence on results.

To remove warning

• Open Loads >Load table
• Change setting for member forces (case 4) from Node to No node (see below)

Regarding instability of type 3

In most cases instability of type 3 can be ignored. Refer to the article  Instability of type 3.

[Hamza.BA]

@Krzysztof_Wasik  problem solved thank you