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  • Bridge Launching Crane for Highway Bridge Construction.

    2019-12-23u2002·u2002Bridge Launching Crane is used to erect the prestressed concrete girder with span 50m and 51m. The assembly of girder adopts stub matching precast which assembled on site, the girder is put on the piers simply and then combined span by span firmly.

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  • Bridge Girder Launching Erection Gantry Crane

    2020-12-11u2002·u2002Road & Bridge Construction Bridge Girder Launching Erection Gantry Crane applied to highway & high-speed railway construction, Bridge girder erection machine is used in the erection of precast beam bridges for span by span method of construction for precast beam girders like U beam, T beam, etc.

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  • Launching Girder Bridge Construction,Bridge Girder ...

    2021-8-13u2002·u20021000 Ton 60 M Overhead Movable Scaffolding System. 60+60 Ton Double Girder Gantry Cranes. 600 Ton 35 M Segment Launching Gantry with Span by Span Method. Balance Cantilever Method Form Traveller. 260 Tons U beam Beam Launcher. 300 ton segment lifter machine for Jing-Yue Changjiang Highway Bridge project.

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  • LAUNCHING GANTRIES – NRS BRIDGE CONSTRUCTION

    8. Cranes capable of walking through hinged transitions (also noses). 9. Gantry can lift and adjust whole span in level and line (vertical and transverse adjustment). 10. Gantry is selflaunching, transports also supports by its own crane. 11. Aux. equipment for erecting pre-cast wings at 2nd stage ( if needed).

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  • Self-launching erection machines for precast concrete

    2018-11-1u2002·u2002ground cranes if the piers are not tall and the area under the bridge is accessible. Sensitive environments, valleys with steep slopes, tall piers, and inhabited areas often require assembly by launching gantry, and in this case the techno-logical costs increase significantly. Self-launching erection machines are complex and delicate machines.

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  • Launching Girder (Bridges Const) – UTRACON

    Launching Girder (Bridges Const) – UTRACON. It is an effective launching system and will only be economically viable for a relatively long stretch (> 1.5km) of viaduct construction due to the rather high capital investment of the launching girder. Generally, the radius of curvature of the viaduct alignment must also not be too small (>200m).

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  • Underslung Self-Launching Gantries for Segmental Bridges ...

    Span-by-Span Erection of Precast Segmental Bridges: Underslung Self-Launching Gantries provides exhaustive coverage of the topic. It explores loads, kinematics, support and launch systems, and performance and productivity of these machines. It also discusses span assembly, the stiffness interactions to consider for the design of bridge piers ...

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  • Guidelines on Safe Use of Lifting Frames and Launching ...

    2021-3-11u2002·u2002Launching Girder Launching Girder is also known as Launching Gantry. A launching girder is in general a design-and-built machine used in precast post-tensioned bridge construction. It consists of lifting devices and a supporting structure for lifting precast beams and precast bridge segments in position for assembling.

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  • (PDF) A SHORT STUDY ON LAUNCHING TECHNIQUES

    2015-4-11u2002·u2002(The new bridge for the oil pipeline of Central Europe, built across the River Po according to the Incremental Launching Method). L'Industria Italiana del Cemento, March1970.

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