Highway bridge long-coupled anti-collision guardrail and its installation method

Abstract

The invention particularly relates to a long-connected type anti-collision guardrail for a highway bridge, which is formed by splicing a plurality of guardrail units. The guardrail unit comprises a base, the front protection part is arranged on the front side above the base and comprises a front side plate which is obliquely arranged on the base and a front frame body which is used for installingthe front side plate, a rear protection part is arranged at the rear side above the base and comprises a frame body with a hollow structure, an upright post and a plurality of strip-shaped elastic structures with two ends fixed on the upright post, the trend of the elastic structures is consistent with the laying direction of the guardrail, each net wire on the elastic structures is formed by connecting a plurality of spring sections, connecting columns and connecting rings, through holes are formed in the side surfaces of the two ends of the connecting column along the radial direction, the connecting ring is of a triangular ring structure surrounded by strip-shaped cylinders, one side of the connecting ring passes through the through holes, an angle opposite to the side is connected withthe end part of the spring section, and the upright column and the column body of the connecting column are welded into an organic whole, and a top column is arranged at the top end of the frame body. The long-connected type anti-collision guardrail for the highway bridge can transversely convert kinetic energy into energy through the elastic structure, so that the automobile can be effectively prevented from being turned out of the expressway.

Description

technical field [0001] The invention belongs to the technical field of road engineering, and in particular relates to a long-connected anti-collision guardrail for highway bridges and an installation method thereof. Background technique [0002] With the development of road and bridge construction, in order to obtain more outstanding breakthroughs and innovations, it is necessary to improve the performance of road and bridge fence construction. The existing anti-collision barriers of highway bridges are mainly a continuous structure spliced ​​with corrugated steel guardrails and supported by main columns. It uses the deformation of soil foundation, columns and beams to absorb collision energy and force out-of-control vehicles to change direction, return to the normal driving direction, and prevent the vehicle from rushing out of the road. When the car is running at high speed, in an emergency, when the car collides with the ordinary guardrail, the driving direction of the c...

AI Technical Summary

Problems solved by technology

When the car is running at high speed, in an emergency, when the car collides with the ordinary guardrail, the driving direction of the car cannot be changed in a short period of time. If the huge kinetic energy of the car cannot be converted, it will be converted into energy that destroys the car. In particular, the broken protective plate hurts people more seriously, and it cannot effectively prevent the car from turning into the waterproof ditch on both sides of the expressway or rushing out of the road bridge and falling into the water.

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