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