The Structural System selected was steel due to its ability to span larger widths.
5 grids in N-S direction and 6 grids in E-W direction.
Columns were placed at intersections of grids with the exception of around the atrium/stairs openings where some manipulation was required.
On the top half of the building, the beam system goes E-W spanning 44 ft with a one way slab action.
Bottom half of the building, the beam system goes N-S spanning 35 ft with a one way slab action.