Building:   New York City, N.Y.
Client:   Hospital for Special Surgery
Architect:   Cannon Design
Structure Type:   Steel and Concrete Structure
Project Category:   Health Care
Photos:   Click photos to enlarge

Ysrael A. Seinuk Area of Specialization:

Structures over Transportation Building Alterations and Renovations

Project Award

BEST HEALTH CARE FACILITY OF THE YEAR - 2007 New York Construction

Project Description
Located at 72nd street and the FDR Drive, the Hospital for Special Surgery is a unique structure of prefabricated-precast concrete and structural steel designed to carry six stories of hospital facilities over the 75 ft. span of the FDR drive. The original structure, also designed by our firm, was an 180,000 S.F., seismically designed, reinforced concrete building, which is now undergoing expansion. Two new 3-story steel additions are being built, one on top of the existing 8-story East Wing over the FDR Drive, and the other on top of the existing 6-story West Wing. The total floor area of the expansions is 90,500 S.F. with a total cost of $30 million.

The building's FDR overhang created challenges and structural characteristics that have required innovative engineering solutions. To meet these structural particulars, the original building was constructed on a structural steel truss and concrete plank platform, and was prefabricated in four sections, each weighing 800 tons. These sections are carried by a series of eight, one-story steel trusses. The whole project is supported by only two rows of parallel columns.