Hi everyone. I'm doing a seismic design of a 10 story steel building with composite slabs and i want to know wich are the best properties modifiers to get the more accurate period of the structure. In my first analysis, i used f11, f22, f12, m11, mm2, mm12 = 0.25 but i'm not really sure about...
Hello everyone. I have a question about BRBF system. FEMA 450 recommendations say that columns forming part of the BRBF system must be checked assuming that BRB reaches its maximum strength corresponding to a 2x story drift. My question is, in a corner column, where two orthogonal BRB are...
Hi all.
I'm starting using Starnd7 and I'd like to learn how to model a buckling restrained brace, specifically the transition zone between the core and the surrounding mortar. I need to model this gap zone in a way that only transfer the compressive stresses when the core is deformated and is...
