One of the most recognizable buildings in Chicago’s Gold Coast, Park Tower consists of retail and parking at the base, a Park Hyatt Hotel that occupies floors 2 to 18, and condominiums from floors 20 through 67. It is one of the world’s tallest non-steel framed structures at 824 feet, constructed with cast-in-place reinforced concrete framing.
The shape and location of the building brought special challenges, which required innovative solutions. Wind tunnel tests indicated unusually high wind forces. Combined with the tall and narrow shape of the building, the accelerations were unacceptably high for residential use. We seamlessly incorporated a tuned mass damper into the peaked roof structure, and a well-planned lateral system controls the accelerations without compromising the architectural design. This efficient, cost-effective solution was one of the first of its kind in the U.S. and has since been adopted in many other high-rises.
Size: 835,000 SF
Architect: Lucien LaGrange & Associates (Design Architect); HKS, Inc. (Architect of Record)
Developer: Hyatt Development Corporation and LR Development Company