4260 Cortex features two stacked box forms, with the upper extending out beyond the lower.
gram elements and a variety of informal spaces. “The visual flexibility and modular nature of precast made it a natural choice for the majority of the exterior façade,” said Dirk McClure, regional director of sales and business development for Enterprise Precast in Omaha, Neb. Akey design decision made early on was to use a series of insulated panels in place of more traditional architectural cladding, McClure said. From a structural standpoint, insulated spandrels span column-to-column and hang off steel haunches. Short insulated panels spanned long spans, transferring the loads back to the columns. Engineer of record was Bob D Campbell and Company, Kansas City, Mo. For North Residential Commons, precast concrete was selected to replicate the University of Chicago’s Gothic architecture in a more cost-effective form. The panels were cast three stories tall by Interna- tional Concrete Products to identify each house unit. The depths on the panels provide sun shading and thermal mass necessary for a radiant slab heating and cooling system. Spray foam insulation was applied to the backs of the precast concrete panels, which helped eliminate the need for a rain screen system. Engineer of record was Magnusson Klemencic Associates, Chicago. In the Hotels/Motels category, The Study at University City in Phila- delphia took top honors. The Study at University City is a 10-story luxury hotel at the intersection of two world-class universities in the heart of Philadelphia. The challenge was erecting this sophisticated piece of architecture on a tight jobsite, in a busy urban environment, and on a short schedule. Designers selected precast concrete, designing panels faced with thin brick to provide the look and feel of brick in a more time- and cost-effective package. The precast concrete panels, manufactured by Universal Concrete Products, are also a lighter en-
velope solution than traditional brick masonry, which was important for managing the vertical and lateral loads imposed on a cast-in-place concrete structural frame. The panels were stacked in an offset pattern at corners, and custom brick shapes were used to wrap the exposed jambs and soffits of the panels. Engineer of record was DeSimone Consulting Engineers, New Haven, Conn. Winning the PCI Design Award in the Manufacturing category was Universal Alloy Light Press Plant, Ball Ground, Ga. The new 110,348-square-foot Universal Alloy light press plant is an example of how an innovative designer can create a beautiful, detailed design us- ing precast concrete in a way that adds virtually no additional costs to the project, according to George Spence, business development man- ager for Metromont Corp. in Dalton, Ga. The owner and design team chose load-bearing, 12-foot-wide, full-height precast concrete panels to reduce the piece count and erection duration. The panels included C-Grid carbon-fiber mesh, which is equivalent to welded-wire fabric but without the thermal bridging, which meant they could be insulated to meet the energy code and still be designed as a composite structural element. The panels also span structurally from the foundation to the roof structure, which eliminated the need for additional wind braces. Engineer of record was Haines, Gipson & Associates, Lawrenceville, Ga. In the Mixed Use category, the winner was 4260 Cortex, St. Louis. The Cortex Innovation Community is home to a 200-acre innovation hub and technology district in the historic Central West End of St. Louis. When the owners decided to build an additional mixed-use structure that could act as a gateway to the hub, they turned to CannonDesign in St. Louis (architect and engineer of record) to create a building that
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