Wing-free wall guardrail transition section

Abstract

The utility model discloses a wing-wall-free guardrail transition section, which belongs to the field of traffic safety facilities, is used for connecting a concrete guardrail and a roadbed guardrail, and comprises a connecting assembly, the connecting assembly comprises a connecting plate, a transition piece and a supporting piece, the connecting plate is arranged on the concrete guardrail, one end of the transition piece is connected with the connecting plate, and the other end of the transition piece is connected with the supporting piece. The end, away from the connecting plate, of the transition piece is connected with the roadbed guardrail, the supporting piece is located on the side, close to the transition piece, of the connecting plate, the supporting piece is arranged between the transition piece and the concrete guardrail and used for being connected with the transition piece, the supporting piece is connected with the transition piece and the concrete guardrail through bolts, and a friction beam is connected between the concrete guardrail and the transition piece. The utility model discloses a wing-wall-free guardrail transition section which can effectively improve the connecting rigidity of a concrete guardrail and a roadbed guardrail and can adjust the position according to working conditions.

Description

Technical Field

[0001] This utility model relates to the field of traffic safety facilities, and in particular to a transition section of a wing-wall-free guardrail. Background Technology

[0002] The transition area between steel and concrete guardrails is a critical part of road safety. Traditional transition section designs typically use wing walls to connect the steel and concrete guardrails. However, the use of wing walls can lead to abrupt changes in stiffness, resulting in greater impact forces on vehicles upon collision and increasing the severity of accidents. Steel and concrete guardrails have different stiffness and deformation characteristics. In the transition section, it is essential to ensure a gradual change in stiffness between the two to prevent vehicles from losing control or experiencing exacerbated damage upon impact. Therefore, the rational design of the transition section is crucial for road safety.

[0003] Traditional wing wall designs increase the complexity and cost of guardrail construction. Wing wall construction not only requires additional materials and time but may also place higher demands on on-site construction conditions. For example, in certain special road conditions such as curves, slopes, and bridges, traditional wing wall designs may not be suitable or may present significant construction difficulties.

[0004] Existing wing wall designs have exhibited problems in international engineering projects, such as high construction difficulty, poor adaptability, and high cost, necessitating the search for more reasonable and effective engineering solutions. Utility Model Content

[0005] In order to overcome the shortcomings of the existing technology, the technical problem to be solved by this utility model is to propose a transition section of wingless guardrail that can effectively improve the connection stiffness of concrete guardrail and roadbed guardrail, and adjust the position according to the working conditions.

[0006] To achieve this objective, the present invention adopts the following technical solution:

[0007] This utility model provides a transition section for a wingless guardrail, used to connect a concrete guardrail and a roadbed guardrail. It includes a connecting assembly comprising a connecting plate, a transition piece, and a support piece. The connecting plate is mounted on the concrete guardrail. One end of the transition piece is connected to the connecting plate, and the end of the transition piece away from the connecting plate is connected to the roadbed guardrail. The support piece is located on the side of the connecting plate closest to the transition piece and is positioned between the transition piece and the concrete guardrail, connecting the transition piece. The support piece is bolted to both the transition piece and the concrete guardrail. A friction beam connects the concrete guardrail and the transition piece.

[0008] The preferred technical solution of this utility model is that the transition component includes a transition beam and several sets of columns, one end of the transition beam is connected to a connecting plate, the end of the transition beam away from the connecting plate is connected to the roadbed guardrail, and the several sets of columns are connected to the transition beam.

[0009] The preferred technical solution of this utility model is that a number of sets of columns are arranged along the transition beam to the roadbed guardrail, and the spacing between each pair of adjacent sets of columns gradually decreases.

[0010] The preferred technical solution of this utility model is that a number of first holes are equally spaced on the transition beam, and a second hole corresponding to the first hole is provided on the side of the column near the transition beam. A bolt is provided between the first hole and the second hole, and the transition beam and the column are connected by the bolt.

[0011] The preferred technical solution of this utility model is that a C-shaped plate is provided at the bottom of the support member, and a friction beam support block is provided at the end of the C-shaped plate away from the support member, and the friction beam support block is connected to the C-shaped plate by bolts.

[0012] The preferred technical solution of this utility model is that the friction beam includes a support beam and a guide beam. A friction beam pad is provided at one end of the support beam. The friction beam pad abuts against the friction beam support block. The support beam, the friction beam pad, and the friction beam support block are connected to the concrete guardrail by bolts. The end of the support beam away from the friction beam pad is connected to the guide beam. The side of the support beam near the column is connected to the column by a multi-stage friction beam pad. The end of the guide beam away from the support beam bends towards the column.

[0013] The preferred technical solution of this utility model is that the friction beam pad, the friction beam support block, and the column have the same length along the support beam direction.

[0014] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0015] This utility model replaces the function of the wing wall by using a connecting plate, transition beam, support member and C-shaped plate in combination, reducing the steps of pouring concrete wing walls on the construction site, saving costs and shortening the construction period;

[0016] This utility model sets up several sets of columns, and the spacing between each pair of adjacent sets of columns decreases along the transition beam toward the concrete guardrail to form a buffer structure, thereby gradually increasing the rigidity between the roadbed guardrail and the concrete guardrail, so that the roadbed guardrail can transition to the concrete guardrail more stably.

[0017] This utility model has several sets of first holes evenly spaced on the transition beam. The positions of the first holes correspond to the positions of the second holes on the several sets of columns, so that the position of the transition beam can be adjusted according to the actual working conditions when connecting the columns, making it easier for the roadbed guardrail to transition to the concrete guardrail more flexibly. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the transition section structure of the wingless guardrail provided in a specific embodiment of this utility model;

[0019] Figure 2 This is a schematic diagram of the C-shaped plate installation structure provided in a specific embodiment of this utility model;

[0020] Figure 3 This is a schematic diagram of the support structure provided in a specific embodiment of this utility model;

[0021] Figure 4 This is a schematic diagram of the friction beam support block structure provided in a specific embodiment of this utility model.

[0022] The attached diagram lists the components represented by each number as follows:

[0023] 1. Concrete guardrail; 2. Roadbed guardrail; 3. Connecting components; 31. Connecting plate; 32. Transition piece; 321. Transition beam; 322. Post; 33. Support piece; 4. Friction beam; 41. Support beam; 42. Guide beam; 5. Friction beam pad; 6. Friction beam support block; 7. C-shaped plate. Detailed Implementation

[0024] The technical solution of this utility model will be further described below with reference to the accompanying drawings and specific embodiments.

[0025] A transition section for a wingless guardrail, used to connect a concrete guardrail 1 and a roadbed guardrail 2, includes a connecting assembly 3. The connecting assembly 3 includes a connecting plate 31, a transition piece 32, and a support piece 33. The connecting plate 31 is disposed on the concrete guardrail 1. One end of the transition piece 32 is connected to the connecting plate 31, and the other end of the transition piece 32 away from the connecting plate 31 is connected to the roadbed guardrail 2. The support piece 33 is located on the side of the connecting plate 31 closer to the transition piece 32. The support piece 33 is disposed between the transition piece 32 and the concrete guardrail 1 and is used to connect the transition piece 32. The support piece 33 is bolted to the transition piece 32 and the concrete guardrail 1. A friction beam 4 connects the concrete guardrail 1 and the transition piece 32.

[0026] When it is necessary to connect the concrete guardrail 1 and the roadbed guardrail 2, the connecting plate 31 is installed on the concrete guardrail 1 and fixed with bolts. The support member 33 is installed on the concrete guardrail 1, and the transition member 32 is installed on the side of the support member 33 away from the concrete guardrail 1. The concrete guardrail 1 and the transition member 32 are connected with bolts. The friction beam 4 is installed on the transition member 32. Finally, the transition member 32 is connected to the roadbed guardrail 2, thus completing the connection between the concrete guardrail 1 and the roadbed guardrail 2. The transition member 32 allows the roadbed guardrail 2 to transition stably to the concrete guardrail 1. The support member 33 provides support for the transition member 32, so as to facilitate the smooth connection between the transition member 32 and the connecting plate 31. This realizes the function of using the connecting plate 31, the transition member 32 and the support member 33 to replace the wing wall, improves the connection stiffness between the concrete guardrail 1 and the roadbed guardrail 2, saves the cost of the concrete wing wall, reduces the construction difficulty, and effectively shortens the construction cycle.

[0027] As a possible implementation of this solution, preferably, the transition member 32 includes a transition beam 321 and several sets of columns 322. One end of the transition beam 321 is connected to the connecting plate 31, and the end of the transition beam 321 away from the connecting plate 31 is connected to the roadbed guardrail 2. The several sets of columns 322 are connected to the transition beam 321.

[0028] By setting a transition beam 321, the roadbed guardrail 2 can be stably transitioned to the connecting plate 31, so that the roadbed guardrail 2 can smoothly transition to the concrete guardrail 1. At the same time, several sets of columns 322 are set to provide stable support for the transition beam 321, thereby improving the connection strength and stability between the transition beam 321, the concrete guardrail 1, and the roadbed guardrail 2.

[0029] As a possible implementation of this solution, preferably, several groups of the columns 322 are arranged along the transition beam 321 to the roadbed guardrail 2, and the spacing between each pair of adjacent columns 322 gradually decreases.

[0030] The arrangement of several sets of posts 322 can be adaptively adjusted according to the location of the site conditions, making it easier for the roadbed guardrail 2 to transition more flexibly to the concrete guardrail 1. Furthermore, the gradually decreasing spacing between each pair of adjacent posts 322 gradually increases the rigidity between the roadbed guardrail 2 and the concrete guardrail 1, so that the roadbed guardrail 2 can transition to the concrete guardrail 1 more stably, thereby improving the overall connection strength.

[0031] As a possible implementation of this solution, preferably, the transition beam 321 is provided with several sets of first holes at equal intervals, and the column 322 is provided with a second hole corresponding to the first hole on the side near the transition beam 321. Bolts are provided between the first hole and the second hole, and the transition beam 321 and the column 322 are connected by the bolts.

[0032] By setting the first hole and the second hole, the transition beam 321 is fixed to the column 322 by bolts, and the second holes on several sets of columns 322 are adapted to the first holes on the transition beam 321, so that the position can be adjusted according to the actual working conditions, making it easier for the roadbed guardrail 2 to transition to the concrete guardrail 1 more flexibly.

[0033] As a possible implementation of this solution, preferably, a C-shaped plate 7 is provided at the bottom of the support member 33, and a friction beam support block 6 is provided at the end of the C-shaped plate 7 away from the support member 33. The friction beam support block 6 is connected to the C-shaped plate 7 by bolts, and the friction beam 4 is located at the bottom of the C-shaped plate 7.

[0034] The friction beam support block 6 is connected by the C-shaped plate 7, which serves as a guide and connection for the installation of the friction beam support block 6 and provides support for the subsequent installation of the friction beam 4, thereby improving the connection rigidity of the friction beam 4. The C-shaped plate 7 and the support member 33 can be connected by welding.

[0035] As a possible implementation of this solution, preferably, the friction beam 4 includes a support beam 41 and a guide beam 42. One end of the support beam 41 is provided with a friction beam pad 5, which abuts against the friction beam support block 6. The support beam 41, the friction beam pad 5, and the friction beam support block 6 are connected to the concrete guardrail 1 by bolts. The end of the support beam 41 away from the friction beam pad 5 is connected to the guide beam 42. The side of the support beam 41 near the column 322 is connected to the column 322 by a multi-stage friction beam pad 5. The end of the guide beam 42 away from the support beam 41 is bent toward the column 322.

[0036] When a vehicle collides with the transition beam 321, the guide beam 42 provides guidance for the vehicle wheels to guide the colliding vehicle back to its driving direction. This further enhances the guiding ability of the transition beam 321 for the vehicle wheels, greatly reducing the possibility of the vehicle wheels getting stuck during the collision. The friction beam pad 5 allows the support beam 41 to be fixed relatively flat on the column 322. Under the action of the friction beam support block 6, the friction beam pad 5 and the support beam 41 are fixed relatively flat on the concrete guardrail 1, making the connection more stable.

[0037] As a possible implementation of this solution, preferably, the friction beam pad 5, the friction beam support block 6, and the column 322 have the same length along the support beam 41 direction to ensure uniform force distribution and improve the overall rigidity.

[0038] This utility model has been described through preferred embodiments. Those skilled in the art will understand that various changes or equivalent substitutions can be made to these features and embodiments without departing from the spirit and scope of this utility model. This utility model is not limited to the specific embodiments disclosed herein; other embodiments falling within the scope of the claims of this application are all within the protection scope of this utility model.

Claims

1. A transition section for a wingless guardrail, used to connect a concrete guardrail (1) and a roadbed guardrail (2), characterized in that: The system includes a connecting component (3), which includes a connecting plate (31), a transition piece (32), and a support piece (33). The connecting plate (31) is mounted on the concrete guardrail (1). One end of the transition piece (32) is connected to the connecting plate (31), and the other end of the transition piece (32) away from the connecting plate (31) is connected to the roadbed guardrail (2). The support piece (33) is located on the side of the connecting plate (31) closer to the transition piece (32). The support piece (33) is mounted between the transition piece (32) and the concrete guardrail (1) and is used to connect the transition piece (32). The support piece (33) is bolted to the transition piece (32) and the concrete guardrail (1). A friction beam (4) is connected between the concrete guardrail (1) and the transition piece (32).

2. The transition section of the wingless wall guardrail according to claim 1, characterized in that: The transition component (32) includes a transition beam (321) and several sets of columns (322). One end of the transition beam (321) is connected to the connecting plate (31), and the end of the transition beam (321) away from the connecting plate (31) is connected to the roadbed guardrail (2). Several sets of columns (322) are connected to the transition beam (321).

3. The transition section of the wingless wall guardrail according to claim 2, characterized in that: Several sets of columns (322) are arranged along the transition beam (321) to the roadbed guardrail (2), and the spacing between each pair of adjacent sets of columns (322) gradually decreases.

4. The transition section of the wingless wall guardrail according to claim 2, characterized in that: The transition beam (321) has several sets of first holes at equal intervals. The column (322) has a second hole corresponding to the first hole on the side close to the transition beam (321). Bolts are provided between the first hole and the second hole to connect the transition beam (321) and the column (322).

5. A transition section for a wingless wall-mounted guardrail according to claim 1, characterized in that: The bottom of the support member (33) is provided with a C-shaped plate (7), and a friction beam support block (6) is provided at the end of the C-shaped plate (7) away from the support member (33). The friction beam support block (6) is connected to the C-shaped plate (7) by bolts.

6. A transition section for a wingless wall-mounted guardrail according to claim 1, characterized in that: The friction beam (4) includes a support beam (41) and a guide beam (42). One end of the support beam (41) is provided with a friction beam pad (5). The friction beam pad (5) abuts against the friction beam support block (6). The support beam (41), the friction beam pad (5), and the friction beam support block (6) are connected to the concrete guardrail (1) by bolts. The end of the support beam (41) away from the friction beam pad (5) is connected to the guide beam (42). The side of the support beam (41) near the column (322) is connected to the column (322) through a multi-group friction beam pad (5). The end of the guide beam (42) away from the support beam (41) bends toward the column (322).

7. A transition section for a wingless wall-free guardrail according to claim 6, characterized in that: The friction beam pad (5), the friction beam support block (6), and the column (322) have the same length along the support beam (41).

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