Front Page Article: Seismic testing of FlexiArch^TM

Masonry arch bridges are one of the oldest forms of bridge construction and have been used for thousands of years. They were originally built of stone or brick, but modern rigid arch bridges are built of reinforced concrete or steel. The introduction of these new materials allows arch bridges to be longer than previously achieved with lower rise-to-span ratios and, with reinforced concrete as the main material, can either be cast on site or manufactured as precast. However, a common problem with such bridges is corrosion of the reinforcement, which can lead to high repair and maintenance costs. Therefore a bridge with no or low amounts of reinforcement is a significant step change and should provide bridges with improved durability and whole life performance.

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