CN204282259U - The device that a kind of corrugated beam barrier is increased - Google Patents

Abstract

The utility model relates to a steel plate guardrail, in particular to a device for heightening a guardrail with a wave beam, which comprises a guardrail column for supporting the guardrail. The guardrail column has a segmented structure. The support section in the subgrade and the reserved section fixed in the support section; one side of the reserved section is fixedly connected with the guardrail board. The utility model designs the guardrail board column into sections, and the support section meets the initial installation height. The reserved section is wedged into the supporting section. In the later process of guardrail heightening, the reserved section is raised to the required height, and the reserved section is fixed in the supporting section at the new height. Retaining makes the cost of later heightening the lowest, and the scheme has fast construction, less impact on vehicle traffic, adapts to various roadbeds, guardrail foundations, etc., and does not affect roadbeds, hardened shoulders, and hardened central dividers.

Description

A device for raising the height of a corrugated beam guardrail

technical field

The utility model relates to a steel plate guardrail, in particular to a device for heightening the steel plate guardrail.

Background technique

my country's road construction has experienced a construction climax period. After years of operation, the roads constructed in advance will gradually enter the maintenance period in the future. It will increase the elevation of the road surface, so that the anti-collision height of the original wave beam guardrail cannot meet the specification requirements.

Defects in the traditional guardrail heightening method: During the overhaul process of the provincial highway, the road surface elevation increases due to changes in the pavement structure of some road sections. After the road surface elevation increases, the anti-collision height of the road side wave beam guardrail cannot meet the "Highway Traffic Safety Facilities Design Code" ( According to the requirements of JTG D081-2006), heightening treatment is required. If the original guardrails are all replaced with new guardrails, the cost will be too high, which will also cause a lot of waste. In the past overhaul process, the method of pulling out the column and re-driving it was mainly used. The construction process of this method is: first remove the wave beam guardrail, anti-blocking block, and column cap, and then use the pile extractor to pull out the column, and move forward or backward uniformly. After moving back 1m and driving in again, reinstall the wave beam guardrail, anti-blocking block, and column cap. However, during the implementation process, it was found that this method had the following disadvantages: a) some of the columns were damaged when the columns were pulled out and re-inserted; b) in the stone excavation section and the stone filling subgrade section, the original column could not be pulled out because of the cement concrete foundation; c) After the column is pulled out, a subgrade cavity will be formed in the central divider or soil shoulder, and the rainwater will seep into the subgrade and easily damage the stability of the subgrade; d) The process of re-driving the column will easily damage the original communication pipeline, especially at the opening of the overpass and the central divider ; e) The guardrail columns of the bridge wave beam need to be completely replaced. Therefore, it is necessary to develop a method for raising the height of the corrugated beam guardrail suitable for ordinary trunk roads.

Utility model content

The purpose of the utility model is to overcome the above-mentioned shortcomings of the prior art and provide a device for raising the height of the corrugated beam guardrail. problems with enormous social and economic benefits.

In order to solve the above-mentioned problems, the technical solution adopted by the utility model is as follows: it includes a guardrail column for supporting the guardrail, and the guardrail column is a segmented structure,

The guardrail column includes a support section whose bottom is deeply buried in the roadbed and a reserved section fixed in the support section;

One side of the reserved section is fixedly connected with the guardrail.

An anti-blocking block is fixedly installed between the guardrail board and the reserved section.

The two end faces of the anti-blocking block are processed with bolt holes respectively connected with the reserved section and the guardrail board,

Both end faces of the anti-blocking block are fixed on the reserved section and the guardrail through bolts matching the bolt holes.

The reserved section is fixed in the supporting section by bolts.

A column cap is installed on the top of the reserved section.

The guardrail board is a corrugated guardrail board.

Compared with the prior art, the utility model has the following beneficial effects: the utility model designs the column of the guardrail plate into sections, the support section meets the initial installation height, and the reserved section is wedged in the support section, and the guardrail is added later. In the process of raising the height, lift the reserved section to the required height, and fix the reserved section in the support section at the new height. The guardrail column can not only provide support for the corrugated guardrail like ordinary columns, but also provide support for the guardrail in the later stage. It is convenient to increase the height in the heightening project. During the use of the utility model, the later heightening cost is the lowest through the lifting reservation, and the scheme has the advantages of fast construction, less impact on vehicle traffic, and adapts to various roadbeds, guardrail foundations, etc. , and will not affect the roadbed, hardened shoulders, and hardened central divider. It has high practical value in the maintenance and reconstruction process of expressways and low-grade highways. The heightening device can be selected according to the height of road surface elevation and road maintenance scheme.

Furthermore, the anti-blocking block can prevent the out-of-control vehicle from stirring at the column of the guardrail board. It is an energy-absorbing component that can gradually deform the guardrail board after being hit, which is conducive to energy absorption and reduces casualties;

Further, in order to prevent the accumulation of water in the column tube of the guardrail plate from corroding the subgrade and corroding the column, it is necessary to install a column cap on the column, so that the immersion of rainwater can be blocked, and the column looks beautiful.

Description of drawings

Fig. 1 is the structural representation of the utility model;

Among them, 1. Reserved section; 2. Support section; 3. Bolt; 4. Column cap; 5. Guardrail board; 6. Anti-blocking block.

Detailed ways

Below in conjunction with accompanying drawing, the utility model is described in further detail:

Referring to Fig. 1, the utility model includes a guardrail column for supporting the guardrail 5, the guardrail column is a segmented structure, and the guardrail column includes a support section 2 whose bottom is deeply buried in the roadbed and is fixed to the support by bolts. The reserved section 1 in the section 2, one side of the reserved section 1 is fixedly connected with the guardrail board 5, and an anti-blocking block 6 is fixedly installed between the guardrail board 5 and the reserved section 1, and the two sides of the anti-blocking block 6 Each end face is processed with bolt holes respectively connected to the reserved section 1 and the guardrail 5, and the two end faces of the anti-blocking block 6 are fixed on the reserved section 1 and the guardrail 5 through bolts matching the bolt holes. A column cap 4 is installed on the top of the remaining section 1. This column cap 4 can prevent the accumulation of water in the column tube of the guardrail plate from corroding the roadbed and corroding the column. The uprights look beautiful.

The utility model suitable guardrail 5 is a corrugated guardrail.

The using method of the utility model:

When the utility model is used, the supporting section 2 is installed to the height required for the first time, and the reserved section 1 is wedged in the supporting section. The remaining section 1 is fixed in the supporting section 2 by bolts. After the overhaul of the road surface, if it is necessary to adjust the height of the wave beam, remove the column cap 4, remove the connecting bolt 3 between the guardrail column and the anti-blocking block 6, and take out the reserved Section 1, adjust so that the height of the column of the guardrail board meets the safety regulations, fix it with the support section 2 by bolt 3 at the new height, and install the column cap 4.

Claims (6)

1. A device for raising the guardrail of a corrugated beam, characterized in that: comprising a guardrail column for supporting the guardrail (5), the guardrail column is a segmented structure, The guardrail column includes a support section (2) whose bottom is deeply buried in the roadbed and a reserved section (1) fixed in the support section (2); One side of the reserved section (1) is fixedly connected with the guardrail (5). 2. The device for heightening a wave beam guardrail according to claim 1, characterized in that: an anti-blocking block (6) is fixedly installed between the guardrail board (5) and the reserved section (1). 3. A device for heightening a wave beam guardrail according to claim 2, characterized in that: the two end faces of the anti-blocking block (6) are respectively processed with the reserved section (1) and the guardrail board (5) Bolt holes for connection, Both end faces of the anti-blocking block (6) are fixed on the reserved section (1) and the guardrail (5) through bolts matching the bolt holes. 4. A device for heightening a wave beam guardrail according to claim 1, characterized in that: the reserved section (1) is fixed in the supporting section (2) by bolts. 5. A device for heightening a wave beam guardrail according to claim 1, characterized in that: a post cap (4) is installed on the top of the reserved section (1). 6. The device for raising the guardrail of a wave beam according to claim 1, characterized in that: the guardrail board (5) is a wave guardrail board.