Construction method of bridge concrete anti-collision guardrail

Abstract

The invention relates to a construction method of a bridge concrete anti-collision guardrail. The construction method comprises the following steps that construction preparation is carried out, wherein a beam plate of a bridge is erected according to the designed paying-off position, and a plurality of guardrail pre-buried ribs are pre-buried on the side beams on the two sides; bridge surface cleaning is carried out, wherein an air compressor is used for carrying out scabbling and blowing-washing on the bottom of the guardrail to be installed, and the distance between the adjacent guardrail pre-buried ribs is adjusted to be l; measuring and placing the guardrail; measuring and lofting are carried out, wherein a control point on the inner side of the guardrail by using a total station, and a design side line on the inner side of the guardrail is obtained through the control point; machining of a guardrail main bar is carried out, wherein machining and shaping are carried out on steel bars entering a construction site through a machining mold frame to obtain the guardrail main bar conforming to the design size; the guardrail main bar is mounted; an inner formwork and an outer formwork are mounted, wherein the inner formwork and the outer formwork are arranged on the two sides of the mounted guardrail main bar correspondingly, and connecting pieces are arranged at the tops of the inner formwork and the outer formwork; concrete pouring is carried out; and formwork disassembly and curing are carried out. According to the construction method, a positioning jig frame and a machining formwork are adopted to complete the standardized construction of the guardrail in a cooperative mode, so that the working efficiency is improved.

Description

technical field [0001] The invention relates to the technical field of guardrail construction, in particular to a construction method of a bridge concrete anti-collision guardrail. Background technique [0002] Bridge concrete anti-collision guardrail refers to the guardrail set on the bridge in the highway. It is to prevent vehicles from going out of the bridge due to various reasons, and to a certain extent to ensure the safety of people and vehicles. Therefore, the strength of the guardrail is relatively high. The construction process of concrete guardrail also has very strict requirements and specifications; usually in the production process of concrete guardrail, the main reinforcement of the guardrail is generally set in the guardrail to enhance the strength of the guardrail, so when the main reinforcement of the guardrail enters the construction site, it is necessary to adjust the size and shape. Reprocessing and reshaping are carried out for those with large differen...

AI Technical Summary

Problems solved by technology

[0003] The present invention aims at the problems existing in the prior art in the construction of guardrails when positioning tire frames and processing formwork, and provides a construction method for bridge concrete anti-collision guardrails. The standardized construction of guardrails is completed by using positioning tire frames and processing formworks. ,Improved work efficiency

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