Wave-shaped beam guardrail upgrading and reconstruction structure based on wave-shaped plate reinforcement

Abstract

The utility model discloses a kind of based on the strengthening of corrugated plate's corrugated beam guardrail promotion reconstruction structure, mainly applied to highway guardrail technical field, include including stand, connecting bolt, double wave plate, stand top is fixed with double wave plate by connecting bolt, further include support connecting assembly, crossbeam, support connecting assembly bottom and double wave plate top are detachably connected, support connecting assembly top is detachably connected with crossbeam. Application the utility model one kind based on the strengthening of corrugated plate's corrugated beam guardrail promotion reconstruction structure, in the process that vehicle collides guardrail, stand produces lodging after, due to the fracture of connecting bolt, new crossbeam and corrugated plate can be separated with stand, reduce the influence of stand lodging drag crossbeam and corrugated plate lodging on guardrail protection height, so best protection effect of corrugated plate, crossbeam can be fully played, only need to remove original corrugated plate part splicing bolt during installation can be completed installation, construction installation is convenient, can shorten construction period, reduce construction period traffic organization difficulty.

Description

Technical Field

[0001] This utility model relates to the field of highway guardrail technology, specifically to a corrugated beam guardrail upgrading and renovation structure based on corrugated plate reinforcement. Background Technology

[0002] Since the beginning of the 21st century, the mileage of expressways in my country has increased rapidly. The corrugated beam steel guardrails built along the early expressways are mostly double-wave beam guardrails. With the increase in the service life of my country's expressways and the continuous increase in traffic volume and speed, the protection height and protection energy of the existing double-wave beam guardrails can no longer meet the requirements of the current "Design Specification for Highway Traffic Safety Facilities" (JTG D81-2017) and the current road protection needs.

[0003] Traditional solutions for upgrading and renovating corrugated beam guardrails often involve complete demolition and reconstruction or using sleeves to raise the posts and then adding corrugated plates or crossbeams to the raised posts. The former suffers from significant material waste, long construction periods, and severe traffic disruption, while the latter has a long construction period and, in the event of a vehicle collision, the corrugated plates are difficult to detach from the posts according to the design concept of corrugated beam guardrails, causing the corrugated plates to collapse along with the posts, thus failing to fully realize the guardrail's safety protection capabilities. Therefore, there is an urgent need for a corrugated beam guardrail upgrading and renovation structure that is highly convenient to construct, can utilize the existing guardrail structure, and can still detach the guardrail plates from the posts even if they collapse due to a vehicle collision, thereby maintaining the height of the guardrail plates and newly added crossbeams. Utility Model Content

[0004] This utility model proposes a corrugated beam guardrail lifting and renovation structure based on corrugated plate reinforcement, which solves the problems of serious material waste, long construction period, traffic interference and reduced protection capacity of traditional corrugated beam guardrail lifting and renovation schemes.

[0005] The technical solution of this utility model is: a corrugated beam guardrail improvement and modification structure based on corrugated plate reinforcement, including a column, connecting bolts, and double corrugated plates. The top of the column is fixed with the double corrugated plates by connecting bolts. It also includes a support connection component and a crossbeam. The bottom of the support connection component is detachably connected to the top of the double corrugated plates, and the top of the support connection component is detachably connected with the crossbeam.

[0006] Preferably, the support connection assembly consists of two L-shaped round tubes, one rectangular connecting tube, and one V-shaped connecting plate. The straight end of the L-shaped round tube is connected to the inner wall of the V-shaped connecting plate, and the vertical end is connected to the bottom of the rectangular connecting tube.

[0007] Preferably, a C-shaped connector is connected to one side of the crossbeam, and the C-shaped connector is detachably connected to the rectangular connecting pipe.

[0008] Preferably, the crossbeam is a D-shaped steel pipe, and the D-shaped steel pipes are connected by splicing sleeves.

[0009] Preferably, the V-shaped connecting plate is attached to the back of the wave crest on the double wave plate, and the attachment point is connected by splicing bolts.

[0010] Preferably, the D-shaped steel pipe and the splicing sleeve are connected by bolts.

[0011] Preferably, the C-shaped connector has through holes at the top and bottom, and the rectangular connecting tube has threaded holes at corresponding positions. The C-shaped connector and the rectangular connecting tube are connected by bolts.

[0012] Preferably, the diameter of the L-shaped tube is at least 30 mm.

[0013] Preferably, the D-shaped steel pipe is formed by cold drawing of a round tube and has a galvanized surface.

[0014] Preferably, the C-shaped connector is made of channel steel.

[0015] The principle of this utility model: Addressing the deficiencies in existing technologies, this application provides a corrugated beam guardrail enhancement and modification structure based on corrugated plate reinforcement. By combining the addition of a crossbeam, new support connection components, and double corrugated plates, the overall coordinated stress distribution of the guardrail structure can be ensured without increasing the connection strength between the double corrugated plates, crossbeams, and posts. This prevents the corrugated plates and new crossbeams from collapsing along with the posts during a vehicle collision, thereby enhancing the guardrail's protective capability. The added support connection components further enhance the protective capability by increasing the height of the guardrail along its length, further improving the guardrail's protective height against vehicles during a collision. This utility model is easy to install. During installation, only the original corrugated plate splicing bolts need to be removed. It does not require complete disassembly of the original corrugated plate or the anti-blocking block. After removing the splicing bolts, the V-shaped connecting plate of the support connection component can be installed on the back of the wave crest on the double corrugated plate. Tightening the splicing bolts will install the support connection component in place. Then, the C-shaped connector on one side of the crossbeam can be fixed to the rectangular connecting tube on the top of the support connection component with bolts. The crossbeams are connected by splicing sleeves and fixed with bolts. The entire installation process can achieve non-destructive installation, with low modification difficulty and high construction efficiency.

[0016] The beneficial effects of this utility model: A corrugated beam guardrail lifting and modification structure based on corrugated plate reinforcement has the following advantages: 1. When the posts collapse during a vehicle collision with the guardrail, the newly added crossbeams and corrugated plates can be separated from the posts due to the breakage of the connecting bolts (the traditional method of modifying the posts by increasing the height of the posts increases the connecting bolts between the posts and the crossbeams, which means that each post has two bolts that are connected to the original double-wave beam and the newly added crossbeam respectively, so they are difficult to break). This reduces the impact of the fallen posts on the crossbeams and corrugated plates on the guardrail's protective height, thus allowing the best protective function of the corrugated plates and crossbeams to be fully utilized.

[0017] 2. The specially designed support connection components can be stretched upward along the height of the guardrail during a vehicle collision, which can further increase the protective height of the crossbeam for the vehicle.

[0018] 3. During construction and installation, this utility model only requires the removal of the original corrugated plate splicing bolts to complete the installation. It does not require the complete disassembly and assembly of the original corrugated plate or the disassembly and assembly of the anti-blocking block (the modification and protection of the heightened column requires the use of connecting bolts, so the anti-blocking block and corrugated plate need to be disassembled and assembled). Construction and installation are convenient, which can shorten the construction period and reduce the difficulty of traffic organization during the construction period. Attached Figure Description

[0019] Figure 1 This is the left view of the present invention; Figure 2 This is the front view of the present utility model; Figure 3 A schematic diagram of a D-shaped steel pipe beam and a C-shaped connecting groove structure; Figure 4 This is a schematic diagram of a C-shaped connecting groove structure; Figure 5 A schematic diagram of the supporting connection component structure; Figure 6 A schematic diagram of the splicing sleeve and crossbeam structure; Figure 7 This is a schematic diagram of the splicing sleeve structure; In the diagram, 1-road surface, 2-column, 3-connecting bolt, 4-splicing bolt, 5-supporting connection component, 6-beam, 7-double wave plate, 8-splicing sleeve, 10-C-shaped connector, 13-V-shaped connecting plate, 14-rectangular connecting pipe, 16-L-shaped round pipe. Detailed Implementation

[0020] The specific implementation method of this utility model is as follows: Figures 1-7 As shown, a corrugated beam guardrail upgrading and renovation structure based on corrugated plate reinforcement includes a post 2, connecting bolts 3, and a double-wave plate 7. The double-wave plate 7 is fixed to the top of the post 2 by the connecting bolts 3. The structure also includes a support connecting component 5 and a crossbeam 6. The bottom of the support connecting component 5 is detachably connected to the top of the double-wave plate 7, and the top of the support connecting component 5 is detachably connected to the crossbeam 6. In this embodiment, the existing corrugated beam guardrail post 2 penetrates the road surface 1 and is firmly fixed to the roadside. The post 2 is equipped with the double-wave plate 7 by the connecting bolts 3. The corrugated beam guardrail upgrading and renovation project is completed by adding the support connecting component 5 and the crossbeam 6 to the existing corrugated beam guardrail. The crossbeam 6 is not connected to the post 2, therefore it does not increase the connection strength between the double-wave plate 7 and the crossbeam 6 and the post 2. This ensures that after a vehicle hits the guardrail, the double-wave plate 7 and the crossbeam 6 can still detach from the post 2, preventing the guardrail from collapsing and reducing the protective height.

[0021] Specifically, such as Figure 5 As shown, the support connection assembly 5 consists of two L-shaped round tubes 16, one rectangular connecting tube 14, and one V-shaped connecting plate 13. The straight ends of the L-shaped round tubes 16 are connected to the inner wall of the V-shaped connecting plate 13, and the vertical ends are connected to the bottom of the rectangular connecting tube 14. In this embodiment, the L-shaped round tubes 16, the rectangular connecting tube 14, and the V-shaped connecting plate 13 are connected by welding to ensure the reliable structural strength of the support connection assembly 5.

[0022] Specifically, such as Figure 3 , Figure 4 , Figure 5 As shown, a C-shaped connector 10 is connected to one side of the crossbeam 6, and the C-shaped connector 10 is detachably connected to the rectangular connecting pipe 14. In this embodiment, the detachable connection between the C-shaped connector 10 and the rectangular connecting pipe 14 reduces construction difficulty and improves the efficiency of the renovation work.

[0023] Specifically, such as Figure 6 , Figure 7 As shown, the crossbeam 6 is a D-shaped steel pipe, and the D-shaped steel pipes are connected by splicing sleeves 8. In this embodiment, to ensure the overall coordinated stress distribution of the guardrail structure, the outer arc surface of the D-shaped steel pipe should be flush with the impact surface of the double-wave plate 7 during construction and installation.

[0024] Specifically, such as Figure 1 As shown, the V-shaped connecting plate 13 is attached to the back of the wave crest on the double-wave plate 7, and the attachment point is connected by splicing bolts 4. In this embodiment, the V-shaped connecting plate 13 is attached to the trough on the back of the wave crest on the double-wave plate 7, and is connected using the original splicing bolts 4 of the double-wave plate 7.

[0025] Specifically, such as Figure 2 , Figure 6 , Figure 7 As shown, the D-shaped steel pipe and the splicing sleeve 8 are connected by bolts. In this embodiment, the D-shaped steel pipes are extended and expanded through the splicing sleeve 8, making installation relatively easy.

[0026] Specifically, such as Figure 3 , Figure 4 , Figure 5 As shown, the C-shaped connector 10 has through holes at its top and bottom, and the rectangular connecting pipe 14 has threaded holes at corresponding positions. The C-shaped connector 10 and the rectangular connecting pipe 14 are connected by bolts. In this embodiment, the above technical solution is adopted, which reduces construction difficulty and increases construction efficiency.

[0027] Specifically, the L-shaped tube 16 has a diameter of at least 30 mm. In this embodiment, using a tube with a diameter of 30 mm or more provides higher mechanical strength and enhances protective capabilities.

[0028] Specifically, the D-shaped steel pipe is formed by cold drawing of round tubes and then galvanized. In this embodiment, the D-shaped steel pipe formed by cold drawing of round tubes has high hardness, good protective ability, and the galvanized surface treatment makes it less prone to rust and extends its service life.

[0029] Specifically, such as Figure 4 As shown, the C-shaped connector 10 is made of channel steel. In this embodiment, the C-shaped connector 10 made of channel steel is readily available and has low manufacturing cost.

[0030] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A corrugated beam guardrail lifting and renovation structure based on corrugated plate reinforcement, comprising a column (2), connecting bolts (3), and a double-wave plate (7), wherein the double-wave plate (7) is fixed to the top of the column (2) by the connecting bolts (3), characterized in that: It also includes a support connection component (5) and a crossbeam (6). The bottom of the support connection component (5) is detachably connected to the top of the double wave plate (7), and the top of the support connection component (5) is detachably connected to the crossbeam (6).

2. The corrugated beam guardrail lifting and renovation structure based on corrugated plate reinforcement according to claim 1, characterized in that: The supporting connection assembly (5) consists of two L-shaped round tubes (16), one rectangular connecting tube (14), and one V-shaped connecting plate (13). The straight end of the L-shaped round tube (16) is connected to the inner wall of the V-shaped connecting plate (13), and the vertical end is connected to the bottom of the rectangular connecting tube (14).

3. The retrofit structure of a wavelike beam guardrail based on a wavelike plate reinforcement according to claim 2, characterized in that: A C-shaped connector (10) is connected to one side of the crossbeam (6), and the C-shaped connector (10) is detachably connected to the rectangular connecting pipe (14).

4. The wavelike-beam guardrail lift reconstruction structure based on a wavelike plate reinforcement according to claim 1, characterized in that: The crossbeam (6) is a D-shaped steel pipe, and the D-shaped steel pipes are connected by splicing sleeves (8).

5. The corrugated beam guardrail lifting and renovation structure based on corrugated plate reinforcement according to claim 2, characterized in that: The V-shaped connecting plate (13) is attached to the back of the wave crest on the double wave plate (7), and the attachment point is connected by splicing bolts (4).

6. The corrugated beam guardrail lifting and renovation structure based on corrugated plate reinforcement according to claim 4, characterized in that: The D-shaped steel pipe and the splicing sleeve (8) are connected by bolts.

7. The corrugated beam guardrail lifting and renovation structure based on corrugated plate reinforcement according to claim 3, characterized in that: The C-shaped connector (10) has through holes at the top and bottom, and the rectangular connecting pipe (14) has threaded holes at the corresponding positions. The C-shaped connector (10) and the rectangular connecting pipe (14) are connected by bolts.

8. The corrugated beam guardrail lifting and renovation structure based on corrugated plate reinforcement according to claim 2, characterized in that: The L-shaped tube (16) has a diameter of at least 30 mm.

9. The corrugated beam guardrail lifting and renovation structure based on corrugated plate reinforcement according to claim 4, characterized in that: The D-shaped steel pipe is formed by cold drawing of round tubes and has a galvanized surface.

10. The corrugated beam guardrail lifting and renovation structure based on corrugated plate reinforcement according to claim 3, characterized in that: The C-shaped connector (10) is made of channel steel.

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