London's Rolling Bridge is a type of curling or folding movable bridge that is part of the Grand Union Canal at Paddington Basin, London. In spite of the connotation of its name, it is more accurately described as 'curling'. Heatherwick Studio was commissioned to be designed by SKM Anthony Hunt with Packman Lucas and built by Littlehampton Welding Ltd. The Hydraulic design and development were done by Primary Fluid Power Ltd.
The eight triangular sections are hinged at the walkway level and connected above by two-part links that can collapse towards the deck by Hydraulic Cylinders, which are concealed in vertical posts in the bridge parapets. The 12-metre-long footbridge, when it extended, resembled a conventional steel and timber structure. It allows the passage of boats; the hydraulic pistons are activated, and the curls up until the two ends join to form an octagonal shape measuring 1 ½ of the waterway's width at that point.
First Image by Flickr User Andrew Cullen
Image by Flickr User Andrew Cullen
Image by Flickr User Andrew Cullen
Image by Flickr User John at Graindesign
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Image by Flickr User Eric Gjerde
Source | Wikipedia.org
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