Effect of plastic hinge length

[snensr]

I modeled a building using infrmFBPH elements and tried different plastic hinge lengths for beams, walls and columns to see the effect on the modal analysis results. According to the my results, changing the plastic hinge lengths of the walls and columns did not affect the results too much. However, if I change only the plastic hinge lenth of the beams, the result will vary significantly. could you tell me what the reason could be for this?

Thank you,

[seismosoft]

Indeed, the element behavior varies significantly with the length of the plastic hinge (and often without physical meaning).
It is strongly recommended to leave the default value.
Seismosoft Support