Novel hollow plate hinge joint structure and construction method thereof

Abstract

The invention discloses a novel hollow plate hinge joint structure and a construction method thereof. The novel hollow plate hinge joint structure comprises a plurality of hollow plates, hinge joints and a bridge deck cast-in-situ layer, wherein each hinge joint is formed between the corresponding two hollow plates; the bridge deck cast-in-situ layer is arranged at the upper parts of the hollow plates and the hinge joints; a transverse bending-resistant steel bar and a transverse lapping steel bar are embedded into the side surface of each hollow plate; an anchor steel bar is embedded into the top surface of each hollow plate; the side surface and the top surface of each hollow plate are coated with chemical adhesives; a longitudinal bending-resistant steel bar and a hoop are arranged in each hinge joint; a longitudinal bridge deck rib and a transverse bridge deck rib are arranged at the lower edge of the bridge deck cast-in-situ layer. Novel hinge joints facilitate concrete vibration, and the construction quality can be effectively guaranteed; the bending resistance and the crack resistance are achieved in the longitudinal and transverse directions of a bridge, and the integrity and the durability of the structure are effectively guaranteed. The hidden dangers of cracking and failure of conventional hinge joints are fundamentally eliminated, the management cost and the maintenance cost during the later operation period are reduced, and the construction method is simple, convenient and practical.

Description

technical field [0001] The invention relates to the field of bridge engineering, in particular to a novel hollow slab hinge joint structure and a construction method thereof. Background technique [0002] Hollow slab girder bridge is one of the most commonly used structural forms of small-span bridges of 10-20m. Most of them are simply supported beams, which are suitable for factory mass production and prefabricated construction. The section is composed of multiple hollow slabs, with hinged joints between the slabs. After the hollow slabs are erected, the hinged joints are poured together with the concrete of the bridge deck, and the multiple hollow slabs, hinged joints and the bridge deck cast-in-place layer form a whole. , to bear loads such as cars. [0003] However, the existing hollow slab girder bridges often suffer damage to the hinge joints. To a lesser extent, the concrete at the grooved joint is separated from the side wall of the hollow slab, and rainwater penetr...

AI Technical Summary

Problems solved by technology

[0007] The purpose of this invention is to provide a new type of hollow slab hinge joint structure and its construction method to effectively solve the technical problem of bridge damage caused by the existing hinge joint due to structural defects

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