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09 Jun 2009 - Switzerland
New fibre reinforced composite footbridge installed in six hours
© Gurit
The new composite Bradkirk Bridge, featuring materials and technology supplied by Gurit UK, was last week installed in an impressive 6 hours in Blackpool, Lancs; as announced on the 3rd of June 2009. The bridge replaces an existing metallic bridge that was life expired.
The bridge was manufactured by AM Structures Ltd for Network Rail and engineered by WYG and comprises of two 12m spans and two flights of steps.
Each span features a fully moulded composite monocoque structure and was manufactured using Gurit’s patented Sprint [epoxy] technology material which provides an autoclave quality laminate without the expense of using an autoclave. Gurit’s Spabond 340LV and Ampreg 22 were also used for bonding, resulting in a virtually steel free construction with each span weighing only 1.6 tonnes.
The new Network Rail structure, with a total scheme cost of £665,000, was installed by Birse Rail during a routine line closure overnight on 17 May 2009 and was completed within 6 hours.
The bridge is expected to last in excess of 60 years and be virtually maintenance free with the exception of routine inspections and replacement of non-slip finishes and stair noses.
Epoxy polymer composite materials offer many qualities which are of particular benefit to structures for rail infrastructure: They are resistant to corrosion and are very tough, resisting abuse and cracking and chipping.
Their light weight features also reduce transportation and installation costs and are more sustainable than steel.
The applications being considered for structural composites are increasing and now include all elements of bridges and encasements, cladding & facia, platforms, canopies and enclosures.
About Gurit
The companies of Gurit Holding AG, Wattwil/Switzerland, are specialised on the development and manufacture of high-end composite materials featuring bespoke physical and chemical characteristics. The comprehensive product range comprises fibre reinforced prepregs, structural foam, gel coats, adhesives, resins and consumables as well as certain finished parts. Gurit supplies growth markets in Wind Energy, Transportation and Marine. The international Group has production sites and offices in Switzerland, Germany, the UK, Canada, Spain, Australia, New Zealand, the USA, India and China.
Source : Gurit
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