A vertically-adjustable gantry assembly installation for removal or placement of a train bridge-span of the type which spans and supported by two piers, comprises a gantry assembly positioned on load-bearing first ground-support locations, the gantry assembly comprising a gantry and a ground-engaging vertical support and lift system, the vertical support and lift system adapted for supporting a combined weight of the gantry and bridge span in at least one operational vertical position above respective bridge span support-surfaces of the piers including a position corresponding to a disembarking plane in which the leg portions are extended from a viewed portion to an extent as least sufficient for the gantry assembly to self-liftoff the pre-installation conveyance system onto the first ground-support locations to effect the gantry assembly installation.


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    Titel :

    BRIDGE SPAN REPLACEMENT SYSTEM


    Beteiligte:
    CARNEY MARK (Autor:in) / DOUCET ROB (Autor:in) / ELISSES LARRY (Autor:in)

    Erscheinungsdatum :

    2019-01-17


    Medientyp :

    Patent


    Format :

    Elektronische Ressource


    Sprache :

    Englisch


    Klassifikation :

    IPC:    B66C Krane , CRANES / E01D BRIDGES , Brücken



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