Building/Ground: Building spans a Bridge

Source: Jeff Goldberg/Esto

The Standard New York, New York City, New York, USA, 2009 designed by Ennead Architects

The building is elevated above the street and straddles the High Line, an abandoned section of a 75-year-old elevated railroad line, which passes over the buildings of the district and is currently being developed as a new linear, public park. To clear the easement 30 feet above the elevated railroad bed, a transfer structure spanning nearly 90 feet between exposed concrete super columns and the East Pier was required. However, the erection of post-tensioned concrete transfer girders would have been onerous and prohibitively expensive. Instead, two 65-ksi steel trusses support the eastern half of the hotel tower. A multi-step cantilevered shoring procedure was employed to install the two-piece trusses. The top chords of the trusses are embedded in a 37-inch-deep concrete transfer slab, creating a large double-tee profile. The composite action greatly reduced steel tonnage and optimized the efforts and efficiency of both materials. -- ArchDaily

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