Moynihan Train Hall, New York, USA

moynihan train hall - a 4,950sqm free-form steel-and-glass roof

A new train hall for inter-city and local rail traffic is being built in the heart of New York City. To house the new Moynihan Train Hall, the historic James A. Farley Post Office building is being totally remodelled, although the existing building will be retained. Situated in Manhattan, the new station is being built to serve as a concourse to the nearby Pennsylvania Station and thus create more capacity for the growing number of passengers (currently more that 650,000 daily).

  • For this project, seele has been appointed to carry out the fabrication and erection of two free-form roof structures in steel and for the design, fabrication and installation of the aluminiumglass skin above the structural steelwork. The roof over the train hall will be formed by four 16m wide curving barrel vaults that cover a total area of about 3,000sqm. Restaurants and retail will surround a hall with an area of 1,044sqm at the midblock entrances, underneath the smaller of the project’s glass roofs. The new roof structure joins up with the existing steel structure and consists of a gridshell of welded steel T-sections with tensioned cables. Separate aluminium-and-glass ele-ments are fitted into the gridshell structure. A total of 2,936 insulating glass units and 578t of steel are required for this structure.

    © Empire State Development, courtesy of SOM, Methanoia

4,950sqm free-form steel-and-glass roof  2,936 insulating glass Units 578t structural steelwork

Project diary of seele's progress at Moynihan Train Hall

Every component and element at Moynihan Train Hall is a one-off. Such diversification requires highly precise planning and execution right across design, production, logistics and work on site. Therefore, seele provides two mock-ups, which are required for visual and performance tests.

  • December 2017: Starting to work on site.

    December 2017: Starting to work on site.

  • October 2017: Visual approval of the mock-up.

    October 2017: Visual approval of the mock-up.

  • September 2017: Two mock-ups for visual and performance tests at seele's testing area in Gersthofen, Germany.

    September 2017: Two mock-ups for visual and performance tests at seele's testing area in Gersthofen, Germany.

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Client Empire State Development
General contractor Skanska USA Civil Northeast, Inc.
Main contractor Skanska USA Civil Northeast, Inc.
Architect Skidmore, Owings & Merril LLP
Engineer Schlaich Bergermann Partner
Date of completion 2019
Scope of seele supply

4,950sqm free-form steel-and-glass roof (member-node system with tensioned cable)

  • 2,936 insulating glass units with solar coating and frit
  • 578t structural steelwork
  • 3,463sqm roof surface over train hall
  • 1,264sqm roof surface over mid block hall

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