Large-span quick-connection fabricated prefabricated part and construction method thereof

Abstract

The invention provides a large-span quick-connection fabricated prefabricated part and a construction method thereof, belongs to the technical field of bridge buildings, and aims at solving the problems that a large-span reinforced concrete bridge prefabricated part is high in installation difficulty and low in construction efficiency. The prefabricated part comprises a prefabricated U-shaped supporting beam, a bridge body splicing beam and a connecting assembly. A pouring plate is fixed in the U-shaped supporting beam, and a frame assembly is arranged in the U-shaped supporting beam; the frame assembly is fixed on the pouring plate; the connecting assembly comprises a core column, and the core column penetrates through the pouring plate. Flanges are fixed at two ends of the core column, and a plurality of connecting columns are fixed on the core column; and the bridge body splicing beams are mounted above the U-shaped supporting beams. Through cooperation of the U-shaped supporting beams and the connecting assemblies, the two adjacent U-shaped supporting beams can be preliminarily fixed, the installation speed of the large-span reinforced concrete bridge prefabricated part is increased, and the construction efficiency is improved; in addition, the U-shaped supporting beam is matched with the frame assembly, so that the bearing strength and the tensile strength of the U-shaped supporting beam are improved.

Description

technical field [0001] The invention belongs to the technical field of bridge construction, and relates to a large-span quick-connect assembly type prefabricated component and a construction method thereof. Background technique [0002] At present, prefabricated buildings refer to buildings assembled from prefabricated parts and components on the construction site. "Span" is a size of beam components, which are used for plates, beams, roof trusses, etc., and large spans refer to various structures spanning a space of more than 10 meters horizontally. Buildings in the form of similar structures often require specific assembly components to be connected. Such assembly components are called long-span prefabricated components. [0003] Existing bridges have relatively large spans. Generally, several bridge prefabricated components are used for splicing and assembly, thereby reducing the difficulty of hoisting. Bridge prefabricated components are mostly welded by steel plates, bu...

AI Technical Summary

Problems solved by technology

[0003]Existing bridges have large spans, and generally use several bridge prefabricated components for splicing and assembly, thereby reducing the difficulty of hoisting. Bridge prefabricated components are mostly welded by steel plates, but The construction made of welded steel plates requires multiple anti-corrosion treatments, which also increases the difficulty of later maintenance, while the reinforced concrete frame is difficult to fix and inconvenient to assemble. Prefabricated components of long-span reinforced concrete bridges are more convenient for fixed installation

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