High-strength low-deformation guardrail

Abstract

The utility model discloses a high-strength low-deformation guardrail, which relates to the technical field of guardrail structures and comprises concrete and densely-planted high-strength steel square columns. According to the high-strength low-deformation guardrail, the densely-planted high-strength steel square stand columns, the crossed rectangular tube oblique beams, the upper rectangular tube cross beams and the upper square tube cross beams are used in cooperation; the middles of the double-side densely-planted type high-strength steel square stand columns are connected, supported and fixed through the crossed type rectangular pipe oblique beams, and the upper portions of the densely-planted type high-strength steel square stand columns are connected and fixed through the upper square pipe cross beams matched with the upper rectangular pipe cross beams, so that the overall structure of the guardrail is simple; the upper square tube cross beams and the densely-planted high-strength steel square stand columns are installed in a sleeving mode, the installation process is convenient and fast, and compared with a lap joint installation mode, the sleeving installation mode of the upper square tube cross beams and the densely-planted high-strength steel square stand columns effectively improves the integrity and strength of the structure; the rectangular tube cross beam at the upper part is improved, so that the interception strength of the guardrail to large-scale passenger cars and trucks is effectively improved.

Description

Technical Field

[0001] The utility model relates to the technical field of guardrail structures, in particular to a high-strength and low-deformation guardrail. Background Art

[0002] Highway guardrails are the main form of semi-rigid guardrails. They absorb energy when vehicles collide with them, making them not easily destroyed. At the same time, they can provide good protection for vehicles and drivers and passengers. They can separate lanes and effectively protect vehicles in the other lane when vehicles in the opposite lane lose control, preventing out-of-control vehicles from entering the opposite lane and causing greater maintenance.

[0003] However, the existing guardrails still have certain shortcomings in actual use. The existing guardrails are mainly composed of corrugated steel guardrail plates spliced ​​together and supported by main columns. The structure is relatively thin and will undergo severe deformation when subjected to a strong impact. The protection and buffering effects on vehicles are limited, and their own strength needs to be improved. They are often unable to prevent high-speed vehicles from rushing into the target lane. For this reason, we have designed a high-strength, low-deformation guardrail to solve the above problems. Utility Model Content

[0004] In view of the deficiencies in the prior art, the utility model provides a high-strength, low-deformation guardrail, which solves the problems raised in the above-mentioned background technology.

[0005] To achieve the above objectives, the utility model is implemented through the following technical solutions: a high-strength, low-deformation guardrail, comprising concrete and densely planted high-strength steel square columns, the concrete is arranged between opposite lanes of the road, the densely planted high-strength steel square columns are evenly distributed on the concrete, the top ends of the densely planted high-strength steel square columns are connected with two groups of upper rectangular tube beams, and the top ends of the densely planted high-strength steel square columns are connected by upper square tube beams, and two adjacent groups of densely planted high-strength steel square columns are connected by cross-type rectangular tube oblique beams, the outer sides of the densely planted high-strength steel square columns are provided with middle rectangular tube beams located below the upper rectangular tube beams, and the outer sides of the densely planted high-strength steel square columns are connected with three corrugated beam plate beams.

[0006] Furthermore, the cross-type rectangular tube oblique beams between the densely planted high-strength steel square columns are in a cross shape, and the ends of the densely planted high-strength steel square columns and the cross-type rectangular tube oblique beams are connected by a sleeve installation method.

[0007] Furthermore, the height of the densely planted high-strength steel square columns at the ends is smaller than the height of the densely planted high-strength steel square columns in the middle.

[0008] Furthermore, the ends of the upper rectangular tube cross beams are provided with deformations matching the densely planted high-strength steel square columns.

[0009] Furthermore, the middle rectangular tube cross beam is located between the three-corrugated beam plate cross beam and the upper rectangular tube cross beam, and the end of the middle rectangular tube cross beam is bent toward the inner side of the densely planted high-strength steel square column.

[0010] Furthermore, the height of the three-corrugated beam plate crossbeam is consistent with the height of the three-corrugated guardrail of the adjacent standard section.

[0011] Furthermore, the upper square tube cross beam, densely planted high-strength steel square column, cross-type rectangular tube inclined beam, middle rectangular tube cross beam, upper rectangular tube cross beam, and three-corrugated beam plate cross beam are all made of S750 new high-strength steel.

[0012] Furthermore, the upper rectangular tube cross beam is 635 mm higher than the adjacent standard section three-corrugated guardrail.

[0013] The utility model provides a high-strength and low-deformation guardrail, which has the following beneficial effects:

[0014] 1. The high-strength and low-deformation guardrail uses the close-planted high-strength steel square columns and the cross-type rectangular tube inclined beams as well as the upper rectangular tube cross beams and the upper square tube cross beams, so that the double-sided close-planted high-strength steel square columns are connected, supported and fixed in the middle by the cross-type rectangular tube inclined beams, and the upper parts of the close-planted high-strength steel square columns are connected and fixed by the upper square tube cross beams and the upper rectangular tube cross beams, so that the overall structure of the guardrail is simple, and the upper square tube cross beams and the close-planted high-strength steel square columns are installed in a sleeve-type manner, and the installation process is convenient and quick. Compared with the lap installation method, the sleeve installation method of the upper square tube cross beam and the close-planted high-strength steel square column effectively improves its integrity and strength. The improvement of the upper rectangular tube cross beam effectively increases the interception strength of the guardrail against large passenger and freight vehicles.

[0015] 2. The high-strength, low-deformation guardrail uses an upper rectangular tube crossbeam, a middle rectangular tube crossbeam and a three-corrugated beam plate crossbeam in coordination, so that the upper rectangular tube crossbeam at the end of the high-strength, low-deformation guardrail is installed on the back of the densely planted high-strength steel square column through deformation, avoiding the strength of the connection and secondary damage in the event of an accident. The connection between the upper rectangular tube crossbeam and the densely planted high-strength steel square column is connected by sleeve-type bolts. The addition of the middle rectangular tube crossbeam effectively shortens the transition distance, avoiding the scraping resistance of the vehicle to the densely planted high-strength steel square column in the event of an accident, increasing the protection capability of the guardrail and the smooth transition of the vehicle, reducing damage to the vehicle and injury to the driver and passengers. The three-corrugated beam plate crossbeam is consistent in height with the adjacent standard section three-corrugated guardrail, and the connection is smooth. The three-corrugated beam plate crossbeam and the bottom of the densely planted high-strength steel square column are fixed and strengthened with concrete. The structural performance is stable, which effectively improves road driving safety. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the structure of the utility model;

[0017] Figure 2 It is a structural schematic diagram of the front side of the utility model;

[0018] Figure 3 It is a schematic diagram of the structure of the utility model from a top view;

[0019] Figure 4 It is a structural schematic diagram of the end face of the utility model.

[0020] In the figure: 1. Concrete; 2. Upper square tube cross beam; 3. Closely planted high-strength steel square columns; 4. Cross-type rectangular tube inclined beams; 5. Middle rectangular tube cross beam; 6. Upper rectangular tube cross beam; 7. Three-corrugated beam slab cross beam. DETAILED DESCRIPTION

[0021] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0022] See also Figures 1 to 4 The utility model provides a technical solution: a high-strength and low-deformation guardrail, comprising concrete 1 and densely planted high-strength steel square columns 3, the concrete 1 is arranged between the opposite lanes of the road, the densely planted high-strength steel square columns 3 are evenly distributed on the concrete 1, and the tops of the densely planted high-strength steel square columns 3 are connected with two groups of upper rectangular tube beams 6, the upper rectangular tube beams 6 are higher than the adjacent standard section three-wave guardrail 635mm, and the improvement of the upper rectangular tube beams 6 effectively increases the interception strength of the guardrail for large passenger and freight vehicles, and the tops of the densely planted high-strength steel square columns 3 are connected by upper square tube beams 2, and the two adjacent groups of densely planted high-strength steel square columns 3 are connected by cross-type rectangular tube inclined beams 4.

[0023] The crossed rectangular tube oblique beams 4 between the densely planted high-strength steel square columns 3 are in a cross shape. The cross shape of the crossed rectangular tube oblique beams 4 can effectively ensure the structural strength of the overall structure of the guardrail, and the densely planted high-strength steel square columns 3 and the ends of the crossed rectangular tube oblique beams 4 are connected by a sleeve installation method. Compared with the lap installation method, the sleeve installation method between the densely planted high-strength steel square columns 3 and the crossed rectangular tube oblique beams 4 effectively improves their integrity and strength, and the installation method is simpler and more convenient. The outer side of the densely planted high-strength steel square columns 3 is provided with a middle rectangular tube cross beam 5 located below the upper rectangular tube cross beam 6, and the outer side of the densely planted high-strength steel square columns 3 is connected with a three-corrugated beam plate cross beam 7. The height value of the densely planted high-strength steel square columns 3 at the end is less than the height value of the middle densely planted high-strength steel square columns 3. The densely planted high-strength steel square columns 3 at the end can adapt to the state of the road, which is convenient for the convergence between the main road and the auxiliary road.

[0024] The end of the upper rectangular tube cross beam 6 is provided with a deformation matching the densely planted high-strength steel square column 3. The upper rectangular tube cross beam 6 is installed on the back of the densely planted high-strength steel square column 3 through deformation to avoid the strength of the connection and secondary damage in the event of an accident. The middle rectangular tube cross beam 5 is located between the three-corrugated beam plate cross beam 7 and the upper rectangular tube cross beam 6. The addition of the middle rectangular tube cross beam 5 shortens the transition distance and avoids the scraping resistance of the vehicle to the densely planted high-strength steel square column 3 in the event of an accident. The end of the middle rectangular tube cross beam 5 is bent toward the inside of the densely planted high-strength steel square column 3, which increases the protection capability of the guardrail and the smooth transition of the vehicle, reducing damage to the vehicle and injury to the driver and passengers.

[0025] The height value of the three-corrugated beam slab cross beam 7 is consistent with the height of the three-corrugated guardrail of the adjacent standard section, and the connection is smooth. The three-corrugated beam slab cross beam 7 and the bottom of the densely planted high-strength steel square column 3 are fixed and reinforced with concrete 1, and the structural performance is stable. The upper square tube cross beam 2, the densely planted high-strength steel square column 3, the cross-type rectangular tube inclined beam 4, the middle rectangular tube cross beam 5, the upper rectangular tube cross beam 6, and the three-corrugated beam slab cross beam 7 are all made of S750 new high-strength steel. Made of S750 new high-strength steel, the strength of the guardrail is much higher than the existing Q235 / Q355 steel, and it has many advantages such as excellent plasticity, low-temperature toughness, platability, and performance stability.

[0026] In summary, when the high-strength, low-deformation guardrail is in use, the middle of the double-sided densely planted high-strength steel square columns 3 are connected, supported and fixed by a cross-type rectangular tube oblique beam 4, and the upper part of the densely planted high-strength steel square columns 3 is connected and fixed by an upper square tube crossbeam 2 and an upper rectangular tube crossbeam 6, so that the overall structure of the guardrail is simple, and the upper square tube crossbeam 2 and the densely planted high-strength steel square columns 3 are installed in a sleeve-type installation manner, and the installation process is convenient and quick. Compared with the lap installation method, the sleeve installation method of the upper square tube crossbeam 2 and the densely planted high-strength steel square columns 3 effectively improves its integrity and strength. The improvement of the upper rectangular tube crossbeam 6 effectively increases the interception strength of the guardrail against large passenger and freight vehicles, and the upper rectangular tube crossbeam 6 is installed on the densely planted high-strength steel square columns through deformation. 3 is at the back of the vehicle to avoid the strength of the connection and secondary injuries in the event of an accident. The connection part of the upper rectangular tube crossbeam 6 and the densely planted high-strength steel square column 3 is connected by sleeve bolts. The addition of the middle rectangular tube crossbeam 5 shortens the transition distance, avoids the scraping resistance of the vehicle to the densely planted high-strength steel square column 3 in the event of an accident, increases the protection capability of the guardrail and the smooth transition of the vehicle, reduces the damage to the vehicle and the injury to the driver and passengers, the three-corrugated beam crossbeam 7 is consistent with the height of the adjacent standard section three-corrugated guardrail, and the connection is smooth. The three-corrugated beam crossbeam 7 and the bottom of the densely planted high-strength steel square column 3 are fixed and strengthened with concrete 1, and the structural performance is stable, which effectively improves road driving safety and realizes the various performances of the entire high-strength and low-deformation guardrail.

[0027] In the description of the present utility model, it should be noted that the orientation or position relationship indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inside", "outside", etc. is based on the orientation or position relationship shown in the drawings, which is only for the convenience of describing the present utility model and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation of the present utility model; the terms "first", "second", and "third" are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance. In addition, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances. Furthermore, the terms "comprises," "comprising," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that includes a list of elements includes not only those elements but also other elements not expressly listed, or also includes elements inherent to such process, method, article, or apparatus.

[0028] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A high-strength, low-deformation guardrail, comprising concrete (1) and densely planted high-strength steel square columns (3), wherein the concrete (1) is arranged between opposite lanes of a road, and the densely planted high-strength steel square columns (3) are evenly distributed on the concrete (1), characterized in that: The top ends of the densely planted high-strength steel square columns (3) are connected to two groups of upper rectangular tube beams (6), and the top ends of the densely planted high-strength steel square columns (3) are connected via upper square tube beams (2), and two adjacent groups of densely planted high-strength steel square columns (3) are connected via cross-type rectangular tube inclined beams (4), and the outer sides of the densely planted high-strength steel square columns (3) are sleeved with middle rectangular tube beams (5) located below the upper rectangular tube beams (6), and the outer sides of the densely planted high-strength steel square columns (3) are connected to three corrugated beam plate beams (7).

2. A high-strength, low-deformation guardrail according to claim 1, characterized in that: The cross-type rectangular tube oblique beams (4) between the densely planted high-strength steel square columns (3) are in a cross shape, and the ends of the densely planted high-strength steel square columns (3) and the cross-type rectangular tube oblique beams (4) are connected by a sleeve installation method.

3. The high-strength, low-deformation guardrail according to claim 1, characterized in that: The height of the densely planted high-strength steel square columns (3) at the ends is smaller than the height of the densely planted high-strength steel square columns (3) in the middle.

4. The high-strength, low-deformation guardrail according to claim 1, characterized in that: The end of the upper rectangular tube cross beam (6) is provided with a deformation matching the densely planted high-strength steel square column (3).

5. The high-strength, low-deformation guardrail according to claim 1, characterized in that: The middle rectangular tube cross beam (5) is located between the three-corrugated beam plate cross beam (7) and the upper rectangular tube cross beam (6), and the end of the middle rectangular tube cross beam (5) is bent toward the inside of the densely planted high-strength steel square column (3).

6. The high-strength, low-deformation guardrail according to claim 1, characterized in that: The height of the three-corrugated beam plate crossbeam (7) is consistent with the height of the three-corrugated guardrail of the adjacent standard section.

7. The high-strength, low-deformation guardrail according to claim 1, characterized in that: The upper square tube cross beam (2), the densely planted high-strength steel square column (3), the cross-type rectangular tube inclined beam (4), the middle rectangular tube cross beam (5), the upper rectangular tube cross beam (6), and the three-corrugated beam plate cross beam (7) are all made of S750 new high-strength steel.

8. The high-strength, low-deformation guardrail according to claim 1, characterized in that: The upper rectangular tube cross beam (6) is 635 mm higher than the adjacent standard section three-wave guardrail.

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