Tuesday, March 22, 2016

Diagrid roof, King's Cross, London

click photo to enlarge
The new Western Concourse at King's Cross railway station in London has a striking diagrid roof.It was designed by the architects, John McAsland and Partners in association with the engineers, Arup. The word diagrid comes from "diagonal grid" and describes a construction method that uses diagonal components very efficiently and economically - steel wall supports and roofs can be constructed that use twenty per cent less materials than would a more conventional steel frame.

The Russian engineer/designer/architect, Vladimir Shukhov (1853-1939, who built in the Constructivist style, is credited with the invention of this method of building. Examples can be seen in most major cities today. In London the "Gherkin" (30 St Mary Axe) and the Queen Elizabeth II Great Court at the British Museum feature the system.

Today's photograph was taken in an attempt to improve on an earlier photograph that I took of the King's Cross roof. On this occasion I used a wide angle lens rather than a fish-eye, but stayed with black and white rather than colour.

photograph and text © Tony Boughen

Photo Title: Diagrid Roof, King's Cross, London
Camera: Olympus E-M10
Mode: Aperture Priority
Focal Length: 12mm (24mm - 35mm equiv.) crop
F No: f2.8
Shutter Speed: 1/160 sec
Exposure Compensation: -0.3 EV
Image Stabilisation: On