Full-prefabricated concrete anti-collision guardrail and construction method

Abstract

The invention discloses a full-prefabricated concrete anti-collision guardrail and a construction method. The guardrail comprises a plurality of spliced prefabricated concrete anti-collision guardrailsections, wherein a connecting device is arranged at the bottom of each prefabricated concrete anti-collision guardrail section; the connecting device is connected with the top plate of a bridge surface; the connecting devices comprise steel casings, pulp inlet tubes and pulp outlet tubes; bridge surface reserved reinforcing steel ribs are sleeved by the steel casings; the pulp inlet tubes and the pulp outlet tubes are respectively connected with the steel casings. The mounting efficiency can be improved, full prefabrication of a concrete anti-collision guardrail can be achieved, on-site construction procedures can be reduced, and the mounting time can be shortened.

Description

technical field [0001] The invention relates to the technical field of bridge engineering, in particular to a fully prefabricated concrete anti-collision barrier and a construction method. Background technique [0002] With the continuous acceleration of urbanization in our country, the construction progress of infrastructure such as roads and bridges is advancing rapidly. At the same time, with the progress of social civilization, the requirements for the progress of bridge construction, environmental protection, and aesthetics are also getting higher and higher. The traditional bridge concrete anti-collision guardrail construction technology often adopts the cast-in-place method, that is, the bridge deck is bound with steel bars, and the guardrail is poured after the formwork is erected. This process is not conducive to speeding up the bridge construction period, and has disadvantages such as environmental pollution and noise pollution. When the exterior of the anti-collis...

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Problems solved by technology

The traditional bridge concrete anti-collision guardrail construction technology often adopts the cast-in-place method, that is, the bridge deck is bound with steel bars, and the guardrail is poured after the formwork is erected. This process is not conducive to speeding up the bridge construction period, and has disadvantages such as environmental pollution and noise pollution. When the exterior of the anti-collision guardrail has landscape modeling requirements, the construction is more complicated, and the appearance quality is not easy to guarantee

[0003] At present, there are construction techniques for partially prefabricated concrete anti-collision barriers. The common practice is that the concrete anti-collision barriers are prefabricated in segments, and a part of the post-casting belt is reserved between the guardrails and the bridge deck, and the reserved steel joints are bound and welded on site. The construction period is still long, and this method has not yet achieved full prefabrication of concrete crash barriers

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