@jayrod12, what do you guys do for columns? Peikko was pushing their concrete filled steel tube columns...but the system also appears to work with standard steel columns, concrete columns, and precast columns.
I asked the same questions to salesman. They said by "other methods". Shear walls, braced frames, etc. I don't think they're doing moment frames like we would with a skip-joist system.
There's is plenty of precast in my area as well (Kansas City). Hollowcore is super cheap here. Seems like the delta beam system also has the benefit of not requiring fireproofing. Many of my architectural clients want to expose the ceiling...and hence want concrete and not steel. I'm wondering...
Deltabeam came by my firm recently to promote their system...composite steel beam supporting precast hollowcore planks. Seems like a nice system, though I've never used it. Most of my concrete projects have been skip joist beam systems (66" pans) with post-tensioned girders. 21" depth usually...
