Universal protective guardrail for SA-level obstacles

Abstract

The utility model discloses a general protective guardrail for SA-level obstacles. The general protective guardrail comprises a concrete foundation and a guardrail main body, the guardrail body is arranged on a concrete foundation and comprises stand columns, guardrail plates, cross beams and cross beam special-shaped ends. Stand columns are arranged below the guardrail plate, a cross beam is arranged above the guardrail plate, and cross beam special-shaped ends are arranged on the two sides of the cross beam. The stand columns comprise first stand columns, second stand columns and third stand columns, the first stand columns are symmetrically arranged at the two ends of the guardrail plate, the second stand columns are symmetrically arranged on the inner sides of the first stand columns at the two ends, the third stand columns are arranged between the second stand columns at the two ends, and the bottom ends of the third stand columns stretch into the concrete foundation. According to the scheme, the overall height of the guardrail is increased by additionally arranging the two cross beams, the effect of reducing the maximum dynamic camber equivalent value of a vehicle is achieved, meanwhile, the deformation of the guardrail is reduced by arranging the first stand column, the second stand column and the third stand column, the structural strength of the protective guardrail is improved, and on the premise of meeting the requirement for medial strip barrier protection, the service life of the guardrail is prolonged. The limitation that a traditional low-deformation guardrail needs to be arranged in a double-row mode is improved, universality of medial strip protection and roadside obstacle protection is achieved, the application scene is wider, the road driving safety is improved, the protection capacity is high, and the landscape effect is good.

Description

Technical Field

[0001] The utility model belongs to the field of traffic safety facility guardrails, and particularly relates to a general-purpose guardrail for SA-level obstacles. Background Art

[0002] In recent years, with the continuous growth of the total mileage of expressways and the number of motor vehicles in China, traffic safety problems on expressways have become increasingly prominent. Especially with the increase in bridges spanning expressways, there are inevitably many bridge piers in the central isolation belt of expressways. Therefore, when traffic accidents occur at the bridge piers, there will be a higher risk of bridge damage and casualties; in addition, in 2019, China comprehensively promoted the electronic toll collection without stopping technology. Due to the complete cancellation of provincial boundary toll stations on expressways, in addition to sign gantries, a large number of ETC gantries have been added, and the gantry columns at the central isolation belt have also become numerous obstacles.

[0003] Due to the limited width of the central isolation belt of expressways, the existing corrugated beam guardrails cannot effectively protect obstacles such as bridge piers and gantry columns. At the same time, most traditional guardrails with low deformation require double-row installation and cannot protect roadside obstacles when needed. Summary of the Invention

[0004] In order to solve the above technical defects in the prior art, the utility model provides a general-purpose guardrail for SA-level obstacles, which can improve the limitation of the traditional low-deformation guardrail that requires double-row installation on the premise of meeting the protection of obstacles in the central isolation belt, making the protection of the central isolation belt and roadside obstacles universal, with a wider application scenario, enhancing the driving safety on the road, and having strong protection ability and good landscape effect.

[0005] The technical solution to achieve the purpose of the utility model is as follows:

[0006] A general-purpose guardrail for SA-level obstacles, comprising a concrete foundation and a guardrail main body;

[0007] The guardrail main body is arranged on the concrete foundation.

[0008] Further, the guardrail main body includes columns, guardrail plates, cross beams, and cross beam special-shaped ends;

[0009] Columns are arranged below the guardrail plates, cross beams are arranged above the guardrail plates, and cross beam special-shaped ends are arranged on both sides of the cross beams.

[0010] Further, the columns include first columns, second columns, and third columns;

[0011] The first columns are symmetrically arranged at both ends of the guardrail plates, second columns are symmetrically arranged inside the first columns at both ends, multiple third columns are arranged between the second columns at both ends, and the bottom ends of the third columns extend into the concrete foundation.

[0012] Further, there are two crossbeams in total, which are arranged in parallel above the guardrail plate and are respectively connected to the second upright post and the third upright post through L-shaped brackets.

[0013] Further, a corrugated guardrail plate is arranged on one side of the vehicle-facing surface of the upright post.

[0014] Further, a lining sleeve is arranged at the bottom of the third upright post.

[0015] Further, the special-shaped end of the crossbeam is connected to the crossbeam through a sleeve, and at the same time, the special-shaped end of the crossbeam is connected to the first upright post through bolts.

[0016] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0017] (1) In the solution of the present utility model, the third upright post located in the core protection area is provided with a lining sleeve at the bottom to increase the bending resistance cross-sectional area, so as to reduce the deformation amount of the guardrail. At the same time, through the dense arrangement and connection with the set concrete foundation, the deformation amount of the guardrail can be further reduced, and the structural strength of the guardrail can be improved;

[0018] (2) The solution of the present utility model increases the overall height of the guardrail by adding two crossbeams, so as to reduce the maximum dynamic outward inclination equivalent value of the vehicle;

[0019] (3) The guardrail of the solution of the present utility model has high strength and high protection performance. Only a single row needs to be arranged, that is, the central isolation belt and the roadside obstacle protection can be made universal, and the applicable scenarios are wider.

[0020] The present utility model will be further described in detail below in conjunction with the drawings and specific embodiments. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a schematic elevation structure diagram of the SA-level obstacle universal protection guardrail of the present utility model.

[0022] Figure 2 It is a schematic cross-section diagram of the SA-level obstacle universal protection guardrail of the present utility model.

[0023] Figure 3 It is a schematic elevation and plan structure diagram of the crossbeam of the present utility model.

[0024] Figure 4 It is a schematic elevation, plan and cross-section diagram of the special-shaped end of the crossbeam of the present utility model.

[0025] Figure 5 It is a schematic elevation, plan and side diagram of the first upright post, the second upright post and the third upright post of the present utility model. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0026] It is easy to understand that according to the technical solution of the present utility model, without changing the essential spirit of the present utility model, those of ordinary skill in the art can imagine various implementation manners of the present utility model. Therefore, the following specific implementation manners and drawings are only exemplary descriptions of the technical solution of the present invention, and should not be regarded as all of the present utility model or as a limitation or restriction of the technical solution of the present utility model. On the contrary, the purpose of providing these embodiments is to enable those skilled in the art to more thoroughly understand the present utility model. The preferred embodiments of the present utility model will be specifically described below in conjunction with the drawings, where the drawings form a part of this application and are used together with the embodiments of the present utility model to illustrate the innovative concept of the present invention.

[0027] Embodiment

[0028] Combined with Figures 1 to 5 , a general-purpose protective guardrail for SA-level obstacles, which is usually installed at the central divider or roadside obstacles and used as an obstacle protective guardrail, includes a concrete foundation 9 and a guardrail main body 10;

[0029] The guardrail main body 10 is arranged on the concrete foundation 9.

[0030] The guardrail main body 10 includes columns, guardrail plates, cross beams 4, and cross beam special-shaped ends 5;

[0031] Columns are arranged below the guardrail plates, cross beams 4 are arranged above the guardrail plates, and cross beam special-shaped ends 5 are arranged on both sides of the cross beam 4, that is, on the vehicle-facing side.

[0032] The columns include a first column 1, a second column 2, and a third column 3;

[0033] Among them, the first columns 1 are symmetrically arranged at both ends of the guardrail plates, the second columns 2 are symmetrically arranged inside the first columns 1 at both ends, multiple third columns 3 are arranged at the position of the core protection area between the second columns 2 at both ends, and the multiple third columns 3 are encrypted, and the spacing can be set to 1 meter. The bottom ends of the third columns 3 extend into the concrete foundation 9. A lining sleeve 8 is arranged at the bottom of the third column 3 to increase the bending cross-sectional area and play a role in reducing the deformation amount of the guardrail.

[0034] At the same time, a strip-shaped concrete foundation is arranged at the bottom of the third column 3 to connect the multiple third columns 3.

[0035] There are two cross beams 4 in total to increase the overall height of the guardrail main body 10. They are arranged in parallel above the guardrail plates and are respectively connected to the second column 2 and the third column 3 through L-shaped brackets 7.

[0036] On one side of the vehicle-facing surface of the upright column, a corrugated guardrail plate 6 is provided. The corrugated guardrail plate 6 is located below the cross beam 4. The two ends of the corrugated guardrail plate 6 are naturally lapped with the corrugated beam guardrail in the general section, and there is no need to set a transition section.

[0037] The special-shaped end 5 of the cross beam is connected to the cross beam 4 through a sleeve. At the same time, the special-shaped end 5 of the cross beam is connected to the first upright column 1 through bolts by a small flange.

[0038] On the premise of meeting the protection of obstacles in the central median strip, the general-purpose protective guardrail of the SA-level obstacle of the present utility model improves the limitation that the traditional low-deformation guardrail needs to be arranged in two rows, realizes the common use of the central median strip and the roadside obstacle protection, has a wider application scenario, improves the driving safety of the road, and has strong protection ability and good landscape effect.

[0039] The above embodiments show and describe the basic principles and main features of the present utility model. Those skilled in the art should understand that the present utility model is not limited by the above embodiments. What is described in the above embodiments and the specification only illustrates the principle of the present utility model. Without departing from the spirit and scope of the present invention, the present utility model will have various changes and improvements, and these changes and improvements all fall within the scope of the present invention claimed.

Claims

1. A universal protective guardrail for SA-level obstacles, characterized in that: It includes a concrete foundation (9) and a guardrail body (10); The guardrail body (10) is arranged on a concrete foundation (9); The guardrail body (10) comprises upright posts, guardrail plates, crossbeams (4), and crossbeam special-shaped ends (5); A column is arranged below the guardrail plate, a crossbeam (4) is arranged above the guardrail plate, and crossbeam special-shaped end heads (5) are arranged on both sides of the crossbeam (4); The columns include a first column (1), a second column (2) and a third column (3); The first columns (1) are symmetrically arranged at the two ends of the guardrail plate, the second columns (2) are symmetrically arranged inside the first columns (1) at the two ends, a plurality of third columns (3) are arranged between the second columns (2) at the two ends, and the bottom ends of the third columns (3) extend into the concrete foundation (9).

2. The SA-level barrier universal protection guardrail according to claim 1 is characterized in that: There are two cross beams (4) in total, which are arranged in parallel above the guardrail plate and are respectively connected to the second column (2) and the third column (3) via an L-shaped bracket (7).

3. The SA-level barrier universal protection guardrail according to claim 1 is characterized in that: A corrugated guardrail plate (6) is provided on the vehicle-facing side of the upright column.

4. The SA-level barrier universal protection guardrail according to claim 1 is characterized in that: An inner lining sleeve (8) is provided at the bottom of the third column (3).

5. The SA-level barrier universal protection guardrail according to claim 1 is characterized in that: The crossbeam special-shaped end (5) is connected to the crossbeam (4) via a sleeve, and the crossbeam special-shaped end (5) is connected to the first column (1) via bolts.

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