Promedica Corporate Headquarters, Toledo, Ohio. Photo: Scott Withers - HKS
up sections. The south façade has a pair of tall sliding steel-and-glass doors — some of the largest ever built — each measuring 42 feet tall by 20.5 feet wide. Special concentrically braced steel frames comprise the seismic lateral force resisting system in both directions. The braced spine is built on a substantial steel transfer truss that spans over the below-ground ballroom. The second-floor cantilever is constructed of tapered built-up steel beams, with tuned mass dampers to reduce the vibration response. Lightweight tapered steel trusses support the roof and enclose the generous interior volume. Structural engineers are Foster + Partners, London (also architect) and Simpson Gumpertz & Heger, San Francisco. Merit Award: Daily’s Place, Jacksonville, Fla. — This 5,500-seat per- formance venue connects a new, 94,000-square-foot indoor football training facility to EverBank Stadium, home of the Jacksonville Jag- uars. Both the performance venue and training facility are covered by a fabric roof that is suspended from an exposed steel roof structure that features exposed articulated steel trusses atop a single-layer membrane hung below. Exposed V-columns around the perimeter serve as vertical
load-bearing members while economically resisting hurricane-force winds. Fifty-foot-tall rolling doors make the spaces flexible, enabling the facility to host a wide variety of events. The cost-efficient marriage of exposed structural steel with a specialized, shimmering fabric mem- brane allows the structure to appear opaque during the day and become translucently alive at night via distinct lighting from within. To meet an accelerated timetable, the integrated project team implemented a fully digital delivery process that eliminated sequential handoffs of docu- ments. A central information database (CID) created from the archi- tect’s Rhino model was crucial to this process. Every participant drew data from the CID, which defined the complex workpoint geometry for the entire project, feeding structural and documentation software platforms including Rhino, Revit, SAP 2000, and Tekla to seamlessly develop the raw architectural form into a fully connected Tekla model that was delivered to the successful steel bidder. Structural engineer and connection designer is Walter P Moore, Kansas City, Mo. Projects less than $15 million National Award: North Transfer Station Rebuild, Seattle — The sta-
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june 2018
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