Hello,

You can define the force-deformation relationships as Hinges (Define/Section properties/Hinge properties). Then you need to assign the hinges to your brace members (Assign/Frame/Hinges). These hinges need to be assigned at relative distances on each frame element; nonlinear behaviour will only occur where hinges are assigned.

Also, don't forget to create a nonlinear load case for the analysis to run correctly.

Hope this helps,

Yes Sir. Thank you