In order to better address resiliency, reliability, and occupant comfort, the team worked in a very collaborative and integrative manner to develop the concept of a tuned liquid damper/cooling tower combination. The damper will act as an increased comfort factor under everyday loading situations that the shear wall core is not capable of controlling. It will also serve as an added reliability factor in the event of a major storm or natural disaster.
Composite steel framing supports lightweight concrete on metal deck for the gravity system in the office and retail areas. Lightweight concrete required a 3.25 inch topping on 3 inch metal deck which was less than required with normal weight concrete for the same fire rating. This resulted in a lighter, more efficient structure. The parking garage gravity system is composed of a concrete flat slab system with drop panels.
STRUCTURAL HIGHLIGHTS
Gravity System
Lateral System
Transfer Trusses
TLD/CT
The lateral system is a set of 24 inch thick C-shaped concrete shear walls linked with coupling beams to create a composite action. This core was design for all strength and baseline serviceability conditions.
Transfer trusses were used on several facades in order to realign columns from the office tower above with columns in the retail space below. Analysis and design were performed in SAP2000. The trusses are not only a structural feature, but also serve as an architectural feature for the facade entrance coming from the plaza.
STRUCTURAL EXECUTIVE SUMMARY
