Seismosoft | Earthquake Engineering Solutions

if i use RBS in modeling steel beam, whether element class are suitable for RBS element, if i could use infrmFBPH element class? but the problem is seimostruct not allow plastic hinge length greater than 50%, whereas plastic hinge most likely to occur during the RBS or 100% of RBS length.

How to apply reduced beam section (RBS) to modeling steel moment frames.

thanks before