Bridge merging section splicing construction equipment

By laying tracks and using load-bearing trolleys at the bridge merging points, the limitations of beam transport vehicle width and guardrails were solved, enabling stable transportation and precise splicing of precast beams, avoiding traffic disruption, and improving construction efficiency and safety.

CN122304283APending Publication Date: 2026-06-30GUIZHOU ROAD & BRIDGE GRP
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
GUIZHOU ROAD & BRIDGE GRP
Filing Date
2026-05-28
Publication Date
2026-06-30

AI Technical Summary

Technical Problem

During the construction of precast beams at the bridge merging section, the width of the beam transport vehicle and the pre-embedded steel bars in the guardrails on the beams limit the stability of beam transport. In addition, the bridge erecting machine occupies the emergency lane or slow lane, affecting traffic safety and efficiency.

Method used

The design incorporates bridge merging section splicing construction equipment, employing tracks laid transversely along the bridge and movable load-bearing trolleys, combined with jacks and temporary support components, to achieve stable transportation and precise splicing of precast beams, avoiding obstruction of existing lanes.

Benefits of technology

This solved the spatial constraints of transporting precast beams on the bridge deck, reduced traffic disruption, lowered the risk of construction accidents, and improved construction efficiency and safety.

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Abstract

This invention relates to bridge merging section splicing construction equipment, comprising: a track laid transversely along the bridge, one end of which extends beyond the edge of the bridge deck to form a transverse cantilever section; a guide structure adapted to the traveling components is provided on the track; a carrying trolley is installed on the track, and a hoisting assembly for lifting precast beams is provided on the top of the carrying trolley; jacks are installed on the track, and the piston rods of the jacks are arranged along the extension direction of the track; a temporary support assembly connected to the bottom of the track is provided below the cantilever section, the temporary support assembly is fixed to a concrete pier, and the top of the concrete pier is rigidly connected to the transverse track through the temporary support assembly; the carrying trolley and the jacks cooperate to move the precast beams from the transverse cantilever section along the track to the bridge deck splicing position. The purpose of this invention is to solve the problem that the width of the beam transport vehicle and the pre-embedded steel bars in the beam guardrail make it impossible to transport beams on the bridge, and that the beam transport by the transport vehicle and the lifting and moving of the bridge erecting machine require the occupation of the existing highway emergency lane and slow lane for auxiliary construction.
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