Reinforcing structure used for local part of concrete bridge, concrete bridge and construction method

Abstract

The invention discloses a reinforcing structure used for a local part of a concrete bridge, the concrete bridge and a construction method, and relates to the technical field of bridge construction. The concrete bridge comprises an asphalt layer, a concrete beam and a bridge floor waterproof concrete paving layer, the reinforcing structure is arranged in the bridge floor waterproof concrete pavinglayer in a penetrating manner, the reinforcing structure comprises an ultra-high property concrete layer and a connecting plate, the ultra-high property concrete layer is arranged between the asphaltlayer and the concrete beam, the ultra-high property concrete layer and the concrete beam are connected into a whole, a steel reinforcement framework is arranged in the ultra-high property concrete layer, the connecting plate comprises a first connecting plate and a second connecting plate which are oppositely arranged up and down, the first connecting plate is connected with the upper portion ofthe steel reinforcement framework, and the second connecting plate is connected with the lower portion of the steel reinforcement framework. The tensile capacity and the crack control capacity of theweak portion of the concrete bridge can be improved, and the paving layer cracking, beam end concrete fragmentation or serious concrete damage of the concrete bridge can be reduced.

Description

technical field [0001] The invention relates to the technical field of bridge construction, in particular to a partial reinforcing structure for a concrete bridge, a concrete bridge and a construction method. Background technique [0002] In multi-span simply-supported bridges, the adjacent bridge spans have significant deformation at the continuous bridge deck, and the stress situation is complicated. Compared with the bridge span structure in terms of stiffness and strength, the bridge deck continuous structure is weaker, and the construction quality is also difficult to guarantee. , the increasing traffic demand leads to cracking of the pavement layer and cracking of the concrete at the end of the beam at the continuous joints of the completed bridge deck. Among the active concrete bridges, problems such as serious damage to the deck concrete of concrete bridges due to insufficient stiffness and other performances emerge in endlessly. [0003] At present, for the weak pa...

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Problems solved by technology

[0003] At present, for the weak parts that are prone to problems such as pavement cracking, beam end concrete cracking or serious concrete damage, grouting is usually performed after the damage is repaired, but this repair method cannot improve the stress of the damaged part, resulting in After repairing, there will still be damage due to complex stress and insufficient rigidity

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