Road guardrail reinforcing device and reinforcing method thereof

Abstract

The invention relates to a road guardrail reinforcing device which comprises a hollow-out basic guardrail vertical column and a wave-shaped guardrail plate and is characterized in that a reinforcing hole is drilled towards a foundation along the center of the hollow-out basic guardrail vertical column, a reinforcing cage is arranged in the reinforcing hole and the hollow-out basic guardrail vertical column, the reinforcing cage is filled with a concrete block, and a heightened guardrail vertical column and a protective beam are arranged on the basic guardrail vertical column. The characteristics of a concrete filled steel tube are made full use of, an encased structure is composed of poured reinforced concrete and the vertical columns, the cross section character of the vertical columns is changed, the capacity of resistance to bending and tensile stress of the vertical columns is enhanced, deep bury of the basic guardrail vertical column is reinforced by the reinforced concrete in the reinforcing hole, and the anti-collision capacity of the vertical column is enhanced. The height of a guiderail can be effectively increased through the protective beam, a vehicle is prevented from rushing out of the guardrail, the protective beam and the wave-shaped guardrail plate bear force together, and therefore, the shortcoming of insufficient anti-collision capacity caused by the insufficient thickness of the guardrail plate is made up. By means of the upgrading and transformation measure, a user does not need to discard a basic guardrail component, original materials are utilized to the largest extent, and an old pulled-out guardrail also can be upgraded and transformed to be used in a new high way, so that cost and waste are reduced.

Description

technical field [0001] The invention belongs to the technical field of highway guardrail maintenance, and in particular relates to a highway guardrail reinforcement device and a reinforcement method thereof. Background technique [0002] Since the 1990s, my country's highway construction has developed rapidly. By the end of 2006, the total mileage of my country's highways had reached nearly 45,000 kilometers. Most of these expressways are based on the regulations in the "Technical Specifications for the Design and Construction of Expressway Traffic Safety Facilities (JTJ074)" published in 1994, that is, the anti-collision grades of expressway general accidents or major accident sections adopt A and Am standards, and the anti-collision The capacity is 93 kilojoules, among which the A-level roadside wave beam guardrail uses a column with an outer diameter of 114mm, a wall thickness of 4.5mm, and a buried depth of 1100mm. The thickness of the guardrail is 3mm, and the wall thi...

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Problems solved by technology

[0007] At the same time, the buried deep part of the old guardrail column has a certain corrosion phenomenon due to long-term water and soil erosion and cannot be maintained, and the strength of the buried deep part of the column is also insufficient.

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