Ramboll has provided the engineering design for the tenth commission in The Unilever Series for the Turbine Hall at Tate Modern.
The installation, ‘How it is’ by Polish artist Miroslaw Balka creates a large dark void within the gallery using a large structural steel frame measuring 30m long, 10m wide and 13m high, supported on 2m high columns, with internal steel plate cladding finished in soft black flock to achieve a “blacked out” internal space. The south end of the box is open like a draw-bridge, providing the public with an access ramp.
The large steel frame is of a very simple and slender modular construction, with the frames fabricated and pre-assembled into 2.5m wide panels before arriving on site. These floor, roof and wall panels were then assembled on site using mechanical fixings to avoid the need for on-site welding, which reduced the installation time and the level of disruption caused during the open hours of the gallery.