New bowstring bridge in Bezons

    As part of the extension of the RER E, a new railway bridge has been shifted in Bezons, in the suburbs of Paris. The operation aims to connect the new “Eole” line to the existing network. The new structure, a 96-meter-long bowstring, will allow the RER lines to pass over the existing railway line.

    Our teams carried out for this project the execution studies of the steel structure on behalf of Eiffage Constructions Métalliques, including the verifications in service and during assembly.

    As part of the assembly studies, it was necessary to develop the necessary reinforcements to ensure the stability of the structure – whose weight is around 2,000 tons – during its transport from the assembly platform to its final position. The structure was put in position after completion of the concrete slab.

    The impressive assembly operation required required 100 hours of discontinuous work and the complete interruption of rail traffic.

    On the fringes of this book, our teams are also in charge of designing a bridge for soft modes, designed to facilitate their movement between the two banks of the Seine. The assembly of this structure should begin this year.

    Photos © Eiffage

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