Multipurpose high-strength low-deformation guardrail

Abstract

The utility model discloses a multipurpose high-strength low-deformation guardrail, and relates to the technical field of highway guardrails. One end of the transition area guardrail is connected with the standard section guardrail, and the other end of the transition area guardrail is connected with the low-variable protection area guardrail; the low-variable protection area guardrail is arranged on the side, close to the road surface, of a protected object and comprises a core protection area guardrail body arranged right in front of the side, close to the road surface, of the protected object; one end of the low-variable connection area guardrail is connected with the core protection area guardrail, and the other end of the low-variable connection area guardrail is connected with the transition area guardrail; through the arrangement of the first stand column, the second stand column, the upper cross beam main beam, the special-shaped upper cross beam, the two corrugated plates, the transition plate, the three corrugated plates, the lower cross beam main beam and the special-shaped lower cross beam, the deformation amount and the side inclination amount are small when the structure is impacted by external force, and the structure has the advantages of being both rigid and flexible, independent in protection, high in applicability and the like; the problems that an existing guardrail structure is poor in deformation resisting effect and applicability and the like are solved.

Description

Technical Field

[0001] The utility model belongs to the technical field of highway guardrails, and particularly relates to a multi-purpose high-strength and low-deformation guardrail. Background Art

[0002] Roadside facilities such as sign posts, ETC gantries, and bridge piers are often set on the roadside or median strip of expressways, which can generally be collectively referred to as roadside or median columnar obstacles on expressways. Currently, there is a lack of special protection for roadside special facilities, and in most cases, the same protective guardrails as those in standard sections are still used for protection. The maximum displacement extension value of the guardrail and the maximum dynamic outward inclination equivalent value of the vehicle after a vehicle collision with such ordinary guardrails both exceed the distance between the guardrail and the columnar obstacle, and thus it is impossible to protect and safeguard the roadside special facilities, which has become one of the main weak positions in traffic safety protection at home and abroad. If targeted special safety protection cannot be carried out on these important roadside facility sections, once an accident occurs, it may cause the upright posts to fall or damage the main structure of the bridge, resulting in greater life and property losses than ordinary sections and having a greater impact on normal traffic.

[0003] Currently, most similar products in the market adopt double-sided protection, with cross braces and diagonal braces connected in the middle. This protection method is generally only applicable to the median strip of highways, and when the shapes, sizes, and positions of the structures to be protected are different, due to structural size limitations, it is very difficult for the above double-sided protection method to be applicable to multiple scenarios.

[0004] Based on this, the utility model proposes a multi-purpose high-strength and low-deformation guardrail to solve the problems existing in the above-mentioned prior art. Content of the Utility Model

[0005] In view of this, the main purpose of the utility model is to provide a multi-purpose high-strength and low-deformation guardrail.

[0006] To achieve the above purpose of facilitating the effective protection and safeguarding of roadside special facilities, the technical solution of the utility model is realized as follows:

[0007] A multi-purpose high-strength and low-deformation guardrail, comprising:

[0008] Standard-section guardrail;

[0009] Transition-zone guardrail, with one end connected to the standard-section guardrail and the other end connected to the low-variable protection-zone guardrail;

[0010] Low-variable protection-zone guardrail, arranged on the side of the object to be protected close to the road surface, comprising:

[0011] Core protection-zone guardrail, arranged directly in front of the side of the object to be protected close to the road surface;

[0012] The low-variable connection area guardrail is connected to the core protection area guardrail at one end and the transition area guardrail at the other end.

[0013] In a preferred embodiment, both the transition area guardrail and the standard section guardrail include first columns. The lower ends of the first columns are embedded below the roadbed ground surface, and the upper ends extend above the roadbed ground surface. A first anti-collision block is provided on the first column of the standard section guardrail, and a third anti-collision block is provided on the first column of the transition area guardrail.

[0014] In a preferred embodiment, both the first anti-collision block and the third anti-collision block are hexagonal hollow columnar structures.

[0015] In a preferred embodiment, the standard section guardrail further includes two corrugated plates, and the two corrugated plates are connected to the first anti-collision block.

[0016] In a preferred embodiment, the transition area guardrail further includes a transition plate. The transition plate is a gradually varying special-shaped plate structure, and the two-wave standard end of the transition plate is connected to the two corrugated plates and the first anti-collision block. The three-wave standard end of the transition plate is connected to the third anti-collision block and the three-corrugated plate of the low-variable protection area guardrail.

[0017] In a preferred embodiment, both the low-variable connection area guardrail and the core protection area guardrail include:

[0018] A second column, the lower end of which is embedded below the roadbed ground surface, the upper end of which extends above the roadbed ground surface, and which is connected to a three-corrugated plate;

[0019] A three-corrugated plate, which is arranged on the second column.

[0020] In a preferred embodiment, the low-variable connection area guardrail further includes:

[0021] A second anti-collision block, which is arranged on the second column close to the transition area guardrail and is connected to the three-corrugated plate;

[0022] A special-shaped lower cross beam, one end of which is connected to the second anti-collision block, and the other end of which is connected to the main beam of the lower cross beam of the core protection area guardrail;

[0023] A special-shaped upper cross beam, one end of which is connected to the main beam of the lower cross beam, and the other end of which is connected to the main beam of the upper cross beam of the core protection area guardrail.

[0024] In a preferred embodiment, the core protection area guardrail further includes:

[0025] A column strengthening sleeve, which is pre-cast in the concrete reinforcement belt in front of the object to be protected and extends out of the concrete reinforcement belt to match the second column;

[0026] The upper crossbeam main girder and the lower crossbeam main girder are both horizontally arranged on the second upright post, and the upper crossbeam main girder is arranged above the lower crossbeam main girder.

[0027] In a preferred embodiment, the special-shaped upper crossbeams are all connected to the upper crossbeam main girder through connecting sleeves; the special-shaped lower crossbeams are connected to the lower crossbeam main girder through connecting sleeves.

[0028] In a preferred embodiment, the second anti-collision block is a rectangular hollow steel pipe structure.

[0029] Compared with the prior art, the present utility model provides a multi-purpose high-strength and low-deformation guardrail, which has the following beneficial effects:

[0030] 1. The structure of this guardrail is consistent with the two-wave plates in the standard section of the roadbed through the three-wave plates below, and the transition plate at the transition uses a gradually variable special-shaped structure, realizing smooth lap joint and seamless protection with the guardrail in the standard section;

[0031] 2. The first upright post, the second upright post, the upper crossbeam main girder and the special-shaped upper crossbeam all adopt Q355 low-alloy high-strength steel, which is suitable for protecting large vehicles, enhancing the overall strength of the guardrail and reducing the deformation amount; the two-wave plates, the transition plate, the three-wave plates, the lower crossbeam main girder and the special-shaped lower crossbeam all adopt Q235 material, which can improve the high-speed impact buffering ability of small vehicles, achieving the purpose of combining rigidity and flexibility, economical steel consumption and reasonable protection;

[0032] 3. In the guardrail in the core protection area, the lower end of the second upright post is buried in the concrete reinforcement belt, and a column strengthening sleeve is adopted inside the second upright post in the critical area above and below the ground. The column strengthening sleeve is fixed at an appropriate position inside the second upright post through the first connecting bolt, thereby further strengthening the bending resistance of the second upright post, and thus reducing the deformation amount when the guardrail is collided;

[0033] 4. This multi-purpose high-strength and low-deformation guardrail can meet the SA / SAm-level protection with single-sided installation on a single side. There is no horizontal and diagonal support in the middle, and the installation is simple. It can realize the protection of various scenarios such as upright posts, gantries, and bridge piers on the roadside and the central isolation belt; it realizes the purpose of facilitating the effective protection of special facilities on the roadside. BRIEF DESCRIPTION OF THE DRAWINGS

[0034] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the following drawings are only some embodiments of the present utility model. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0035] Figure 1This is the front view of the multi-purpose high-strength and low-deformation guardrail of the present utility model;

[0036] Figure 2 This is the structural schematic diagram of the multi-purpose high-strength and low-deformation guardrail of the present utility model;

[0037] Figure 3 This is the structural schematic diagram of the standard section guardrail of the multi-purpose high-strength and low-deformation guardrail of the present utility model;

[0038] Figure 4 This is the structural schematic diagram of the low-variable protection area guardrail of the multi-purpose high-strength and low-deformation guardrail of the present utility model;

[0039] Figure 5 This is the top view of the multi-purpose high-strength and low-deformation guardrail of the present utility model;

[0040] Figure 6 This is the cross-sectional view of the multi-purpose high-strength and low-deformation guardrail of the present utility model at the A-A cutting position;

[0041] Figure 7 This is the cross-sectional view of the multi-purpose high-strength and low-deformation guardrail of the present utility model at the B-B cutting position;

[0042] Figure 8 This is the cross-sectional view of the multi-purpose high-strength and low-deformation guardrail of the present utility model at the C-C cutting position;

[0043] Figure 9 This is the structural schematic diagram of the two-wave plate and the transition plate of the present utility model;

[0044] Figure 10 This is the structural schematic diagram of the three-wave plate of the present utility model;

[0045] Figure 11 For the present utility model Figure 1 The partial enlarged view at A.

[0046]

Description of the symbols of the main components

[0047] 1. Two-wave plate; 2. Transition plate; 3. Three-wave plate; 4. First column; 5. Second column; 6. Connecting sleeve; 7. First connecting bolt; 8. Column strengthening sleeve; 9. Upper beam main girder; 10. Object to be protected; 11. Lower beam main girder; 12. Concrete reinforcement belt; 13. Special-shaped upper beam; 14. Special-shaped lower beam; 15. First anti-collision block; 16. Second anti-collision block; 17. First connecting bolt; 18. Second connecting bolt; 19. Third connecting bolt; 20. Fourth connecting bolt; 21. Third anti-collision block. Detailed implementation manners

[0048] The structure of the multi-purpose high-strength and low-deformation guardrail will be further described in detail below in conjunction with the accompanying drawings and embodiments of the present invention.

[0049] It should be noted that, without conflict, the embodiments in the present application and the features in the embodiments may be combined with each other. The present invention will be described in detail below with reference to the accompanying drawings and embodiments.

[0050] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the present application. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "comprise" and / or "include" are used in this specification, they indicate the presence of features, steps, operations, devices, components, and / or combinations thereof.

[0051] It should be noted that the terms "first", "second", etc. in the specification and claims of the present application and the above-mentioned drawings are used to distinguish similar objects and do not necessarily need to describe a specific order or sequence. It should be understood that such data can be interchanged under appropriate circumstances so that the embodiments of the present application described herein can be implemented in an order other than those illustrated or described herein. In addition, the terms "comprise" and "have" and any variations thereof are intended to cover non-exclusive inclusion. For example, a process, method, system, product, or device that includes a series of steps or units does not necessarily have to be limited to those steps or units clearly listed, but may include other steps or units not clearly listed or inherent to these processes, methods, products, or devices.

[0052] For ease of description, spatial relative terms such as "above...", "over...", "on the upper surface of...", "above" can be used herein to describe the spatial positional relationship between a device or feature shown in the figure and other devices or features. It should be understood that the spatial relative terms are intended to include different orientations in use or operation in addition to the orientation of the device shown in the figure. For example, if the device in the figure is inverted, the device described as "above other devices or structures" or "over other devices or structures" will then be positioned "below other devices or structures" or "under other devices or structures". Thus, the exemplary term "above..." can include both the orientation of "above..." and "below...". The device can also be positioned in other different ways (rotated 90 degrees or in other orientations), and corresponding explanations are made for the spatial relative descriptions used herein.

[0053] Embodiment 1:

[0054] Please refer to Figures 1 to 11, the present utility model provides a technical solution:

[0055] A multi-purpose high-strength and low-deformation guardrail is provided on the side of the road, mainly used for safety protection at the columns, gantries, and bridge piers on the roadside and the central median of the highway, realizing multi-purpose protection; it includes a low-variable protection area guardrail, a transition area guardrail, and a standard section guardrail; the low-variable protection area guardrail is arranged on the side of the protected object 10 close to the road surface for protecting the protected object 10; the transition area guardrail is arranged at both ends of the low-variable protection area guardrail and is connected to the low-variable protection area guardrail; the standard section guardrail is arranged at the outer end of the transition area guardrail and is connected to the transition area guardrail.

[0056] By connecting the low-variable protection area guardrail, the transition area guardrail, and the standard section guardrail, a guardrail structure with high strength and low deformation is formed to protect protected objects 10 of different sizes and specifications, so as to solve the problem that most similar products in the existing market adopt double-sided protection and are connected by horizontal braces and diagonal braces in the middle. This protection method is generally only applicable to the central median of the highway, and when the shapes, sizes, and positions of the protected structures are different, due to the limitation of the structural size, it is difficult for the above double-sided protection method to be applicable to multiple scenarios.

[0057] Embodiment 2:

[0058] Please refer to Figure 1 , Figure 2 , Figure 3 and Figure 6 , different from the above Embodiment 1, both the transition area guardrail and the standard section guardrail include a first column 4. The lower end of the first column 4 is embedded below the roadbed ground on the side of the road, and the upper end extends above the roadbed ground. A first anti-collision block 15 is installed on the side of the upper end of the first column 4 of the standard section guardrail close to the road surface, and a third anti-collision block 21 is installed on the side of the upper end of the first column 4 of the transition area guardrail close to the road surface. Both the first anti-collision block 15 and the third anti-collision block 21 are connected to the first column 4 through a fourth connecting bolt 20, which is used for installing the upper corrugated plate and playing a buffering role after impact.

[0059] Please refer to Figure 1 , Figure 2 , Figure 3 and Figure 6 , the standard section guardrail further includes two corrugated plates 1. The two corrugated plates 1 are connected to the first anti-collision block 15 through connecting bolts, forming a standard section guardrail structure that can play a buffering and anti-impact role.

[0060] Please refer to Figure 1 , Figure 2 , Figure 3 and Figure 6, the first anti-blocking block 15 is a hexagonal hollow columnar structure, which is used to attenuate energy through the deformation and support of the first anti-blocking block 15 when the two corrugated plates 1 are externally impacted, ensuring the safe use of the standard section guardrail structure.

[0061] Please refer to Figure 1 , Figure 2 , Figure 3 and Figure 6 , the transition area guardrail further includes a transition plate 2. The transition plate 2 is a gradually varying special-shaped plate structure. One end of the transition plate 2, the two-wave standard end, is connected to the two corrugated plates 1 and the first anti-blocking block 15, connecting the transition area guardrail to the standard section guardrail. The other end of the transition plate 2, the three-wave standard end, is connected to the three-corrugated plate 3 of the low-variable protection area guardrail. The standard section guardrail and the low-variable protection area guardrail are connected through the transition plate 2 to achieve a smooth transition between the standard section guardrail and the low-variable protection area guardrail.

[0062] Please refer to Figure 1 , Figure 2 , Figure 3 and Figure 6 , the third anti-blocking block 21 has the same structure as the first anti-blocking block 15, and is also a hexagonal hollow columnar structure, which is used to attenuate energy through the deformation and support of the third anti-blocking block 21 when the transition plate 2 is externally impacted, ensuring the safe use of the standard section guardrail structure.

[0063] Embodiment 3:

[0064] Please refer to Figure 1 , different from the above embodiment, the low-variable protection area guardrail includes a low-variable connection area guardrail and a core protection area guardrail; the core protection area guardrail is arranged directly in front of the protected object 10 on the side close to the road surface. The low-variable connection area guardrail is arranged at both ends of the core protection area guardrail and is connected to the transition area guardrail and the core protection area guardrail to form a stable support structure to protect the protected object 10.

[0065] Please refer to Figure 1 , Figure 2 , Figure 4 , Figure 5 and Figure 6 , both the low-variable connection area guardrail and the core protection area guardrail include a second column 5 and a three-corrugated plate 3. The lower end of the second column 5 is embedded below the roadbed ground on the side of the road, and the upper end extends above the roadbed ground and is connected to the three-corrugated plate 3 through a third connecting bolt 19 to form a stable roadside protection guardrail structure to ensure the safe driving of vehicles.

[0066] Please refer to Figure 1 , Figure 2 , Figure 4 , Figure 5 ,Figure 6 , Figure 7 , Figure 8 and Figure 10 , the low-variable connection area guardrail further includes a second anti-collision block 16, a special-shaped lower cross beam 14, and a special-shaped upper cross beam 13; the second anti-collision block 16 is arranged on the side close to the road surface of the second column 5 on the side close to the transition plate 2, and is connected to the second column 5 through a fourth connecting bolt 20, and a connecting bolt is also arranged on the front side of the second anti-collision block 16 to connect with the three-wave corrugated plate 3 to form a stable corrugated protection guardrail structure; one end of the special-shaped lower cross beam 14 is connected to the upper end of the second anti-collision block 16, and the other end is connected to the lower cross beam main beam 11; one end of the special-shaped upper cross beam 13 is connected to the lower cross beam main beam 11 through a first connecting bolt 7, and the other end is connected to the upper cross beam main beam 9 to form a stable guardrail support structure.

[0067] Please refer to Figure 1 , Figure 2 , Figure 4 , Figure 5 , Figure 6 , Figure 7 , Figure 8 and Figure 10 , the core protection area guardrail further includes a column reinforcement sleeve 8, a lower cross beam main beam 11, and an upper cross beam main beam 9. The column reinforcement sleeve 8 is pre-cast in the concrete reinforcement belt 12 on the front side of the object to be protected 10, and extends out of the concrete reinforcement belt 12 and is connected to the second column 5 through a first connecting bolt 17 to enhance the structural strength of the second column 5 of the core protection area guardrail.

[0068] Please refer to Figure 1 , Figure 2 , Figure 4 , Figure 5 , Figure 6 , Figure 7 , Figure 8 and Figure 10 , the second anti-collision block 16 is a rectangular hollow steel pipe structure, which is used to attenuate energy through the deformation and support of the second anti-collision block 16 when the three-wave corrugated plate 3 is externally impacted, ensuring the use safety of the low-variable connection area guardrail structure.

[0069] Please refer to Figure 1 and Figure 11 , the special-shaped upper cross beam 13 and the upper cross beam main beam 9, and the special-shaped lower cross beam 14 and the lower cross beam main beam 11 are connected through connecting bolts and connecting sleeves 6.

[0070] Please refer to Figure 1 , Figure 2 , Figure 4 , Figure 5 , Figure 6 , Figure 7 , Figure 8and Figure 10 The first upright column 4, the second upright column 5, the main beam of the upper cross beam 9, and the special-shaped upper cross beam 13 are all made of Q355 low-alloy high-strength steel; the two corrugated plates 1, the transition plate 2, the three-corrugated plate 3, the main beam of the lower cross beam 11, and the special-shaped lower cross beam 14 are all made of the common Q235 material, so that the single-sided installation of a single lane can meet the SA / SAm-level protection with low deformation and low vehicle roll angle values. The structure is simple, the construction is fast, and the applicable range is wide. It can realize the protection of various scenarios such as single upright columns, gantry upright columns, and bridge piers at the roadside and the central isolation belt. The overall structure can be smoothly lapped and reasonably transitioned with the standard three-wave corrugated guardrail to achieve seamless protection.

[0071] Through full-scale vehicle collision tests, the maximum lateral dynamic displacement extension value of the guardrail structure is not greater than 0.4 m, and the maximum dynamic outward inclination equivalent value of the vehicle is not greater than 0.5 m, which is much higher than the corresponding indicators of the ordinary guardrail in the standard section.

[0072] It should be noted that in this article, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the term "comprising", "including" or any other variant thereof is intended to cover non-exclusive inclusion, so that a process, method, article or device comprising a series of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article or device. Without further limitation, an element defined by the phrase "comprising a..." does not exclude the presence of additional identical elements in the process, method, article or device comprising the element.

[0073] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principle and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A multi-purpose high-strength low-deformation guardrail, characterized by: include: Standard section guardrail; The transition zone guardrail is connected to the standard section guardrail at one end and to the low variable protection zone guardrail at the other end; The low-variability protection zone guardrail is arranged on the side of the protected object (10) close to the road surface, and comprises: The core protection area guardrail is arranged in front of the protected object (10) on the side close to the road surface; The low-variability connection area guardrail is connected to the core protection area guardrail at one end and to the transition area guardrail at the other end.

2. A multi-purpose high-strength low-deformation guardrail as claimed in claim 1, characterized in that: The transition zone guardrail and the standard section guardrail both comprise a first column (4), the lower end of the first column (4) being embedded below the road base surface and the upper end extending above the road base surface, and a first anti-blocking block (15) being arranged on the first column (4) of the standard section guardrail, and a third anti-blocking block (21) being arranged on the first column (4) of the transition zone guardrail.

3. A multi-purpose high-strength low-deformation guardrail as claimed in claim 2, characterized in that: The first anti-blocking block (15) and the third anti-blocking block (21) are both hexagonal hollow columnar structures.

4. A multi-purpose high-strength low-deformation guardrail as claimed in claim 2, characterized in that: The standard section guardrail further comprises two corrugated plates (1), wherein the two corrugated plates (1) are connected to a first anti-blocking block (15).

5. A multi-purpose high-strength low-deformation guardrail as claimed in claim 4, characterized in that: The transition zone guardrail further comprises a transition plate (2), the transition plate (2) being a gradually variable plate structure, and the two-wave standard end of the transition plate (2) is connected to the two corrugated plates (1) and the first anti-blocking block (15), and the three-wave standard end of the transition plate (2) is connected to the third anti-blocking block (21) and the three-wave corrugated plate (3) of the low variable protection zone guardrail.

6. The multi-purpose high-strength low-deformation guardrail according to claim 1, characterized in that: The low-variable connection area guardrail and the core protection area guardrail both include: A second upright column (5), the lower end of which is embedded below the road base surface, the upper end of which extends above the road base surface and is connected to the three-corrugated plate (3); The three corrugated plates (3) are arranged on the second upright column (5).

7. A multi-purpose high-strength low-deformation guardrail as claimed in claim 6, characterized in that: The low-variable connection area guardrail also includes: A second blocking block (16) is arranged on a second upright post (5) on one side of the guardrail close to the transition zone and is connected to the three-corrugated plate (3); A special-shaped lower cross beam (14), one end of which is connected to the second blocking block (16), and the other end of which is connected to the lower cross beam main beam (11) of the core protection area guardrail; One end of the special-shaped upper cross beam (13) is connected to the lower cross beam main beam (11), and the other end is connected to the upper cross beam main beam (9) of the core protection area guardrail.

8. A multi-purpose high-strength low-deformation guardrail as claimed in claim 7, characterized in that: The core protection area guardrail also includes: The column reinforcement sleeve (8) is precast in a concrete reinforcement belt (12) on the front side of the protected object (10), and extends out of the concrete reinforcement belt (12) to match the second column (5); The upper cross beam main beam (9) and the lower cross beam main beam (11) are both horizontally arranged on the second column (5), and the upper cross beam main beam (9) is arranged on the upper side of the lower cross beam main beam (11).

9. A multi-purpose high-strength low-deformation guardrail as claimed in claim 8, characterized in that: The special-shaped upper cross beam (13) and the upper cross beam main beam (9) are connected via a connecting sleeve (6); the special-shaped lower cross beam (14) and the lower cross beam main beam (11) are connected via a connecting sleeve (6).

10. The multi-purpose high-strength low-deformation guardrail according to claim 7, characterized in that: The second anti-blocking block (16) is a rectangular hollow steel pipe structure.

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