Seismosoft | Earthquake Engineering Solutions

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 ...

I modeled a building both infrmFBPH and elfrm elements. According to the modal analysis's results periods are 1.24s and 1.45s respectively. Which one should I consider? Another issue is how it is possisble that the elastic period is bigger than the inelastic one?

Thank you

I modeled a building using infrmFBPH (inelastic force-based plastic hinge ) elements and I realized that changing the plastic hinge length of the structural members( columns, walls and beams in this case) significantly affect the uncracked modal analysis's results. How plastic hinge length make this ...