Liftable high-bracket trolley and adjacent-span forming and whole-span longitudinal moving mounting process for bridge

Abstract

The invention provides a liftable high-bracket trolley and an adjacent-span forming and whole-span longitudinal moving mounting process for a bridge. The liftable high-bracket trolley comprises a load transportation module, a partial load beam, a hydraulic jack system, a vertical support system and a stable support system, wherein the partial load beam is arranged on the load transportation module, the hydraulic jack system is arranged on the partial load beam, and the vertical support system is arranged on the hydraulic jack system. The mounting process includes that large hoisting equipment is adopted to halt at a bridge end to hoist steel superposed beam subsections sequentially to an adjacent bridge deck, a moving type jig frame is used for completing whole-span assembly and welding of the steel superposed beam, construction of concrete bridge deck and other processes is performed on the established bridge deck, the whole steel superposed beam section is moved to an assembling position on the bridge deck so as to be spliced and assembled with the adjacent bridge deck through a plurality of liftable high-bracket trolleys after the whole-span assembly of the steel superposed beam, and then the assembly of the whole steel superposed beam section is completed.

Description

technical field [0001] The invention relates to the field of bridge construction, in particular to a liftable high-support trolley and a bridge span-forming whole-span longitudinal movement installation process. Background technique [0002] At present, the conventional construction technology of long-span steel composite girders is to use hoisting equipment to occupy the road construction, assemble the parts one by one to the permanent fulcrum and temporary fulcrum (pier and temporary support), and then weld the steel composite girder , welding seam inspection, painting, and finally pouring concrete bridge deck, unloading, removing temporary supports, reopening the road, and restoring traffic. [0003] The construction technology of steel composite beams in the prior art mainly has the following disadvantages: [0004] 1) When assembling steel composite beams and constructing concrete slabs at busy traffic intersections, it is necessary to set up temporary supports and use...

AI Technical Summary

Problems solved by technology

[0005] 2) The welding, weld inspection, and painting of steel composite beams are all aerial operations, which pose certain hidden dangers to the driving safety of the road below;

[0006] 3) Partial road closures have a long construction period and have a great impact on traffic

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