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First rapid assembly, polymer, modular bridge launched in the UK

By intouch * posted 21-03-2017 11:34

  

The world’s first modular glass fibre, reinforced polymer pedestrian bridge has been launched, with developers saying the lightweight, flexible design reduces disruption to communities and is perfect for areas with minimal access.


The Pedesta bridge. Photo credit: Mabey 
The post-tensioned bridge, named the Pedesta, is designed to be assembled in hard to reach sites where large cranes or heavy machinery cannot be used. The design was developed by Arup and Mabey, with Mabey becoming the first licensed distribution partner.

Part-funded by the UK's Rail Safety and Standards Board, developers expect the modular bridge to be of particular interest to the rail industry, providing a safer alternative to level crossings where traditional pedestrian bridges cannot be installed.

The first bridge has been installed at a 'Site of Special Scientific Interest' for Network Rail in Oxford. The bridge modules were light enough to be transported by an articulated lorry and then assembled on site and lifted from a distance.

The Pedesta features identical modules, one metre in length, which are fixed together with bolted shear connectors and then post-tensioned. The system allows spans of up to 30 metres, so it can adapt to suit any application. In addition, being 70% lighter than steel, the modules only require a pallet truck or forklift to move, enabling faster, safer and more efficient project delivery. The material provides additional resistance to fire, graffiti, vandalism, and ultra-violet radiation.

Arup Associate Rebecca Stewart says the bridge is quick and easy to install, minimising disruption to the surrounding communities and reducing ongoing maintenance costs.

"We can see this bridge being useful for a whole host of global applications – from rail footbridges to road and river spans. It is great to have partnered with Mabey and for them to have become our first licensed partner.”

Mabey Bridge CEO Michael Treacy says: “There is always room for innovation in bridging, and we pride ourselves on pushing boundaries with new materials so we can safely build longer-lasting structures even faster. What we have developed from Arup’s concept will change the game for our customers who tell us cost and ease-of-use come first. This is a significant step in our ongoing mission to lead the future of modular bridging and we look forward to seeing the game-changing Pedesta make its UK debut.”
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