The Challenge
The existing structures are cast-in-place concrete two-way slab structures supported by concrete columns with shallow floor-to-floor heights. The new addition was required to match the existing floor to floor heights of the existing building while maintaining structural systems that were shallow enough to accomodate the extensive mechanical and electrical systems necessary for a research laboratory. Furthermore, numerous large holes in the two-way slab system were necessary to install new elevators and duct penetrations.
$75M
Additions and Renovate-As-New Project
Localized
use of FRP around new openings in
two-way flat slabs
THE SOLUTION
The structural systems for the new addition is a structural steel frame with shallow framing members supporting a composite concrete slab on metal deck. To accomodate the new openings in the two-way flat slab, the Enginer utilized structural steel framing where permissible but where no additional depth in structure could be accomodated, the Engineer strengthened the concrete slab around the openings with Fiber Reinforced Polymers (FRP.)
