A two-wave beam steel guardrail

Abstract

This utility model discloses a reused two-wave beam steel guardrail in the field of guardrails. A plurality of supporting structures are installed on the road surface along the highway direction, and a protective structure is installed on the plurality of supporting structures along the highway direction. The supporting structures extend into the road surface for installation; the protective structure is provided on the outer side of the supporting structures. The protective structure includes an M-shaped two-wave plate and at least one row of crossbeams. Brackets are provided between the crossbeams and the M-shaped two-wave plates and the supporting structures, and the brackets serve as a buffer when the guardrail is impacted. The guardrail provided by this utility model has an inverted U-shaped supporting structure, which can improve the protective effect of the guardrail. The crossbeams strengthen the connection stability of the plurality of supporting structures, preventing the guardrail from derailing from its original road surface when a vehicle impacts it. The brackets between the protective structure and the supporting structure can also buffer the impact force when the guardrail is hit by a vehicle, thereby improving the protective effect of the guardrail.

Description

Technical Field

[0001] This utility model relates to the field of guardrails, and in particular to a repurposed two-wave beam steel guardrail. Background Technology

[0002] Steel guardrails can also refer to industrial "safety barriers". Guardrails are mainly used on highways, provincial roads, urban elevated roads and expressways, as well as roads, road reconstruction and expansion, tourist scenic areas and other occasions to protect personal safety and equipment facilities. Utility Model Content

[0003] The purpose of this utility model is to provide a reused two-wave beam steel guardrail, which improves the guardrail's protective effect by using an inverted U-shaped support structure and a bracket set between the support structure and the protective structure.

[0004] To solve the above technical problems, the following technical solution is adopted:

[0005] This utility model provides a reused two-wave beam steel guardrail, including a support structure and a protective structure. A plurality of the support structures are installed on the road surface along the highway direction, and the protective structure is installed on the plurality of support structures along the highway direction.

[0006] The support structure extends into the road surface for installation; the outer side of the support structure is provided with the protective structure, which includes an M-shaped two-wave plate and at least one row of crossbeams, the crossbeams being parallel to the M-shaped two-wave plate and located above the M-shaped two-wave plate;

[0007] The crossbeam and the M-shaped two-wave plate are all provided with brackets between themselves and the supporting structure. The brackets are used to buffer the impact when the guardrail is hit.

[0008] Optionally, the support structure includes columns and U-shaped tubes. Two columns are provided, with one end of each column extending into the road surface and the other ends of the two columns respectively engaging with the two ends of the U-shaped tubes.

[0009] Optionally, the U-shaped tube has end tubes at both ends, the column is a tubular structure, the end tubes are installed inside the column and are bolted on, and the diameter of the end tubes is smaller than the diameter of the middle part of the U-shaped tube.

[0010] Optionally, the bracket between the crossbeam and the column includes a trapezoidal bracket, which is a hollow structure with openings at both the top and bottom.

[0011] Optionally, the support structure further includes reinforcing rods, with both ends of the reinforcing rods mounted on the U-shaped tube.

[0012] Optionally, the column is provided with a reinforcing plate, which is located below the road surface.

[0013] Optionally, several of the crossbeams are joined end to end and installed on the column with bolts, and several of the M-shaped two-wave plates are installed together with bolts.

[0014] Optionally, the bracket between the M-shaped two-wave plate and the supporting structure includes a rectangular bracket, which is a hollow structure with openings at both the top and bottom.

[0015] Optionally, both the support structure and the protective structure are made of steel and are hot-dip galvanized, wherein the galvanizing amount is not less than 350g / m.

[0016] Compared with the prior art, the beneficial effects achieved by this utility model are as follows:

[0017] 1. The guardrail provided by this utility model can improve the protective effect of the guardrail; the connection stability of several supporting structures is strengthened by the crossbeam, which prevents the guardrail from deviating from the original road when a vehicle hits the guardrail. A bracket is also provided between the protective structure and the supporting structure. The bracket can buffer the impact force when the guardrail is hit by a vehicle, thereby improving the protective effect of the guardrail.

[0018] 2. The guardrail provided by this utility model can be modified from existing guardrails. After removing the M-shaped two-wave plates from the posts, rectangular brackets are installed, and posts are added to reduce the spacing between posts. Furthermore, crossbeams are added to the posts to improve the connection stability between them, thereby enhancing the protective effect of the guardrail. Modifying existing guardrails does not damage the original structure, allows for the reuse of the M-shaped two-wave plates, and reduces maintenance costs. Attached Figure Description

[0019] Figure 1 This is a three-dimensional structural diagram of the reused two-wave beam steel guardrail in this utility model embodiment;

[0020] Figure 2 This is a schematic diagram of the planar structure of the reused two-wave beam steel guardrail in this utility model embodiment;

[0021] Figure 3 This is a utility model Figure 2 Enlarged schematic diagram of part A in the middle;

[0022] Figure 4 This is a utility model Figure 2 Enlarged schematic diagram of part B in the middle;

[0023] Figure 5 This is a utility model Figure 2 Enlarged schematic diagram of part C in the middle;

[0024] Figure 6 This is a schematic diagram of the support structure in an embodiment of this utility model;

[0025] Figure 7 This is a schematic diagram of the U-shaped tube structure in an embodiment of this utility model;

[0026] Figure 8 This is a schematic diagram of the side guardrail structure in an embodiment of this utility model;

[0027] Figure 9 This is a plan view of the side guardrail in an embodiment of this utility model;

[0028] Figure 10 This is a utility model Figure 9 A magnified schematic diagram of part B in the middle section.

[0029] Explanation of reference numerals in the attached figures:

[0030] 1. Column; 2. U-shaped tube; 3. M-shaped double-wave plate; 4. Crossbeam; 5. Reinforcing rod; 6. Trapezoidal bracket; 7. Rectangular bracket; 8. End tube; 9. Reinforcing plate. Detailed Implementation

[0031] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. The following description of at least one exemplary embodiment is merely illustrative and is in no way intended to limit the present invention or its application or use.

[0032] In the description of this utility model, it should be understood that the terms "center," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating orientation or positional relationships, are based on the orientation or positional relationships shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, features defined with "first," "second," etc., may explicitly or implicitly include one or more of that feature. In the description of this utility model, unless otherwise stated, "a plurality of" means two or more. In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0033] Example 1

[0034] This embodiment provides a repurposed two-wave beam steel guardrail, including a support structure and a protective structure. A plurality of the support structures are installed on the road surface along the highway direction, and the protective structure is installed on the plurality of support structures along the highway direction.

[0035] The protective structure is bolted to the supporting structure for easy disassembly.

[0036] The support structure includes the support structure for the median strip guardrail and the support structure for the side guardrails. The support structure for the median strip is an inverted U-shaped structure with both ends extending into the road surface for installation. The two sides of the guardrail are connected by an arched structure to improve the impact resistance of the guardrail and enhance its protective effect.

[0037] The side guardrail is supported by a single post 1 that extends into the road surface.

[0038] like Figure 1 , Figure 2 As shown, the outer side of the support structure is provided with the protective structure. The protective structure includes an M-shaped two-wave plate 3 and at least one row of crossbeams 4. The crossbeams 4 are parallel to the M-shaped two-wave plate 3 and are located above the M-shaped two-wave plate 3.

[0039] The guardrail consists of several unit segments, each segment being 12 meters long, including three M-shaped two-wave plates 3 and two crossbeams 4, with a spacing of 2 meters between each support structure.

[0040] Brackets are provided between the crossbeam 4 and the M-shaped two-wave plate 3 and the supporting structure. The brackets are used to buffer the impact when the guardrail is hit. The brackets are hollow tubular structures. When a vehicle hits the M-shaped two-wave plate 3 and the crossbeam 4 on the guardrail, the hollow tubular brackets deform to buffer the impact force on the guardrail.

[0041] The supporting structure is fixed to the asphalt or concrete pavement using high-strength anchor bolts. The anchor bolts are installed using a rebar anchoring method, with the rebar strength not less than 20-25 MPa. The anchoring depth of the anchor bolts during construction meets the following requirements: 420mm for asphalt pavement and 180mm for concrete pavement.

[0042] Example 2

[0043] This embodiment provides a reused two-wave beam steel guardrail based on Embodiment 1. The protective structure includes several M-shaped two-wave plates 3 spliced ​​end to end and several crossbeams 4 spliced ​​end to end. The length of the M-shaped two-wave plates 3 is 4 meters and the length of the crossbeams 4 is 6 meters. Each unit segment of the protective structure includes three M-shaped two-wave plates 3 and two crossbeams 4. The M-shaped two-wave plates 3 and the crossbeams 4 are arranged parallel to each other vertically. The M-shaped two-wave plates 3 are located above the crossbeams 4. Multiple rows of crossbeams 4 can be designed according to the actual situation.

[0044] like Figure 4 , Figure 6 As shown, the cross-section of the beam 4 is rectangular, and the beam 4 is fixedly installed on the column 1 by bolts. The M-shaped two-wave plate 3 is fixedly installed on the column 1 by bolts.

[0045] The support structure includes two posts 1 and two U-shaped tubes 2. The two posts 1 are respectively connected to both ends of the U-shaped tubes 2, and the other ends of the two posts 1 extend into the road surface for installation. For guardrails at both edges of the highway, the support structure includes one post 1, and the protective structure is installed on the side of the post 1 closest to the highway.

[0046] The column 1 is also equipped with a reinforcing plate 9. The reinforcing plates 9 on the two columns 1 are arranged face to face. When installing the column 1, the reinforcing plate 9 is set below the road surface to improve the installation reliability of the column 1.

[0047] like Figure 6 , Figure 7As shown, the U-shaped tube 2 has end tubes 8 at both ends. The diameter of the end tubes 8 is smaller than the diameter of the middle part of the U-shaped tube 2. The column 1 is a tubular structure. When the U-shaped tube 2 is installed on the column 1, the end tubes 8 at both ends of the U-shaped tube 2 are placed in the inner cavity of the column 1 and then fixed by bolts. The inner cavity diameter of the column 1 is the same as the diameter of the middle part of the U-shaped tube 2. At the same time, the end tubes 8 are smaller than the inner cavity of the column 1. The connection of the end tubes 8 at both ends of the U-shaped tube 2 forms a platform, which facilitates the placement of the U-shaped tube 2 during installation. Then it is fixed by bolts.

[0048] like Figure 4 , Figure 5 As shown, a reinforcing rod 5 is also provided on the U-shaped tube 2, and the two ends of the reinforcing rod 5 are fixedly connected to the opening of the U-shaped tube 2 by bolts. Due to the modification of the original guardrail, the U-shaped tube 2 installed on the old post 1 is longer, and the U-shaped tube 2 installed on the new post 1 is shorter. Therefore, the reinforcing rods 5 on the two different U-shaped tubes 2 are in different positions, and the reinforcing rods 5 on the guardrail are distributed vertically in a staggered manner.

[0049] In some embodiments, the crossbeam 4 is connected to the supporting structure via a trapezoidal bracket 6, and the M-shaped two-wave plate 3 is connected to the supporting structure via a rectangular bracket 7. The trapezoidal bracket 6 is a hollow tubular structure with a trapezoidal cross-section and openings at the top and bottom, and the rectangular bracket 7 is a hollow tubular structure with a rectangular cross-section and openings at the top and bottom. When the guardrail is hit by a vehicle, the hollow trapezoidal bracket 6 and rectangular bracket 7 can effectively withstand the impact force through deformation, thus providing a cushioning effect.

[0050] The long side of the trapezoidal bracket 6 is bolted to the U-shaped tube 2 or the column 1, and the short side is bolted to the crossbeam 4.

[0051] The entire structure of the guardrail is made of Q235D steel and is hot-dip galvanized. The galvanization amount on the main components of the guardrail, namely the post 1, the beam 4, the U-shaped tube 2 and the M-shaped two-wave plate 3, is not less than 600g / m, and the galvanization amount on other components is not less than 350g / m.

[0052] Each guardrail unit is an independent unit, and the M-shaped two-wave plates 3 between the units are connected by bolts. Each unit is 6 meters long, and the length of the protected area is adjusted by changing the number of guardrail units.

[0053] In some embodiments, such as Figure 1 , Figure 2 As shown, for the median strip in the center of the highway, the support structure includes two posts 1 and a U-shaped pipe 2. One end of each post 1 is connected to both ends of the U-shaped pipe 2, and the other end of each post 1 extends into the road surface for installation. For the guardrails at both edges of the highway, the support structure includes one post 1, and a protective structure is installed on the side of the post 1 closest to the highway.

[0054] like Figure 3 , Figure 4 As shown, the two columns 1 installed on a U-shaped tube 2 are spaced 1378mm apart, the two horizontal support structures are spaced 2000mm apart, the column 1 extends 1460mm into the road surface, the road surface is 600mm above the midpoint of the M-shaped two-wave plate 3, and the ground is 1400mm above the highest beam 4.

[0055] like Figure 2 , Figure 3 , Figure 4 , Figure 5 As shown, existing highway guardrails can be modified to the guardrail provided in this embodiment without damaging the original structure. Specifically, for median guardrails on highways, two rows of posts 1 are spaced apart, and M-shaped two-wave plates 3 are installed on the posts 1. U-shaped tubes 2 are added between the two posts 1 in the two rows, and new posts 1 are added between two adjacent posts 1 in each row, so that the interval between two adjacent posts 1 in a row is 2 meters. The height of the newly added posts 1 is higher than that of the old posts 1. Therefore, the height of the U-shaped tubes 2 on the new posts 1 is less than that of the U-shaped tubes 2 installed on the old posts 1, so that the height of the guardrail support structure is consistent. After the U-shaped tubes 2 are installed on the old posts 1, two crossbeams 4 are installed on the posts 1. Both crossbeams 4 are located on the U-shaped tubes 2. After the U-shaped tubes 2 are installed on the new posts 1, one crossbeam 4 is located on the new posts 1, and the other crossbeam 4 is located on the U-shaped tubes 2. The crossbeams 4 on the new posts 1 are located at the connection between the U-shaped tubes 2 and the posts 1.

[0056] In other embodiments, such as Figure 8 , Figure 9 , Figure 10 As shown, for the side guardrail on the highway, a new post 1 is added between two old posts 1. The original M-shaped two-wave plate 3 is removed and reinstalled. The new post 1 is bolted to the original M-shaped two-wave plate 3 to reduce the distance between the posts 1. After adding the new post 1, the distance between the two posts 1 is 2 meters. A crossbeam 4 is installed on the post 1, parallel to and above the M-shaped two-wave plate 3. Since the height of the old post 1 is insufficient to install the crossbeam 4, a splicing pipe section is installed on the old post 1. The splicing pipe is bolted to the end of the old post 1, and a trapezoidal bracket 6 is bolted to the splicing pipe. The crossbeam 4 is bolted to the trapezoidal bracket 6.

[0057] For side railings, such as Figure 9 As shown, the distance between the two columns is 2 meters, the length of the column extending into the ground is 1460mm, the height of the ground from the center of the M-shaped two-wave plate 3 is 600mm, and the distance of the ground from the crossbeam is 1100mm.

[0058] like Figure 1 , Figure 8As shown, for the renovation of the old highway guardrail, the reinforcing plate 9 is installed on the new post between the old posts. Therefore, the reinforcing plate 9 is arranged at intervals on the post 1 in the entire guardrail device. The reinforcing plate 9 can improve the reliability of the post 1, thereby improving the reliability of the entire guardrail.

[0059] Modifying existing guardrails simply involves removing and reinstalling the original M-shaped two-wave plate 3, increasing the guardrail's protective capacity without damaging the original structure. This effectively solves the problem of existing road surfaces not being able to be optimized after guardrail installation.

[0060] The above description is only a preferred embodiment of the present utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the technical principles of the present utility model, and these improvements and modifications should also be considered within the protection scope of the present utility model.

Claims

1. A repurposed two-wave beam steel guardrail, comprising a support structure and a protective structure, wherein a plurality of the support structures are installed on the road surface along the highway direction, and the protective structure is installed on the plurality of support structures along the highway direction, characterized in that, The support structure extends into the road surface for installation; the outer side of the support structure is provided with the protective structure, which includes an M-shaped two-wave plate and at least one row of crossbeams, the crossbeams being parallel to the M-shaped two-wave plate; The crossbeam and the M-shaped two-wave plate are all provided with brackets between themselves and the supporting structure. The brackets are used to buffer the impact when the guardrail is hit.

2. The used two-wave beam steel guardrail according to claim 1, wherein, The support structure includes columns and U-shaped tubes. There are two columns, one end of which extends into the road surface and is installed, and the other ends of the two columns are respectively installed in conjunction with the two ends of the U-shaped tubes.

3. The repurposed two-wave beam steel guardrail according to claim 2, characterized in that, The U-shaped tube has end tubes at both ends, the column is a tubular structure, the end tubes are installed inside the column and are bolted on, and the diameter of the end tubes is smaller than the diameter of the middle part of the U-shaped tube.

4. The repurposed two-wave beam steel guardrail according to claim 2, characterized in that, The bracket between the crossbeam and the column includes a trapezoidal bracket, which is a hollow structure with openings at both the top and bottom.

5. The repurposed two-wave beam steel guardrail according to claim 2, characterized in that, The support structure also includes reinforcing rods, with both ends of the reinforcing rods mounted on the U-shaped tube.

6. The repurposed two-wave beam steel guardrail according to claim 2, characterized in that, The column is equipped with a reinforcing plate, which is located below the road surface.

7. The repurposed two-wave beam steel guardrail according to claim 1, characterized in that, Several of the aforementioned crossbeams are assembled end to end and installed on the column with bolts, and several of the M-shaped two-wave plates are installed together with bolts.

8. The repurposed two-wave beam steel guardrail according to claim 1, characterized in that, The bracket between the M-shaped two-wave plate and the supporting structure includes a rectangular bracket, which is a hollow structure with openings at both the top and bottom.

9. The repurposed two-wave beam steel guardrail according to claim 1, characterized in that, Both the supporting structure and the protective structure are made of steel and are hot-dip galvanized, with a galvanizing amount of not less than 350g / m.

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