Beam column type guardrail and concrete guardrail transition connection structure

Abstract

The utility model discloses a transition connection structure of a beam column type guardrail and a concrete guardrail. The transition connection structure comprises the beam column type guardrail, the concrete guardrail and a transition connection wall. The concrete guardrails and the beam column type guardrails are arranged at intervals from left to right; the first end of the transition connecting wall is connected with the concrete guardrail, the second end of the transition connecting wall is connected with the beam column type guardrail through a connecting assembly, the height of the transition connecting wall is gradually increased from left to right, and the thickness of the bottom of the transition connecting wall is gradually decreased from left to right. The height and the thickness of the first end are matched with the height and the thickness of the concrete guardrail, and the height and the thickness of the second end are matched with the height and the thickness of the beam column type guardrail. The stable transition of the height and the thickness of the beam column type guardrail in the middle division zone and the concrete guardrail is achieved, and sudden height difference and thickness difference are avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of guardrails, and in particular to a transition connection structure between a beam-column type guardrail and a concrete guardrail. Background Art

[0002] Bridge anti-collision guardrail is a traffic safety facility installed on the bridge structure. At present, the central guardrail of large-span cable-supported bridges usually adopts single-column metal beam-column guardrails due to the need to reduce the dead load of the bridge, while the central guardrails of the approach bridges on both sides generally adopt traditional integral concrete guardrails. According to the relevant provisions of the "Highway Traffic Safety Facilities Design Code" (JTG D81-2017), transition sections need to be designed between guardrails with different protection levels or different structural forms. The transition section should be smoothly connected and have a smooth transition of stiffness to ensure driving safety.

[0003] CN212582523U A transition section of a beam-column guardrail in a central dividing strip of an expressway comprises a beam-column guardrail, a transition section, a transition wing wall, a narrowed section of a bridge concrete guardrail, and a standard section of a bridge concrete guardrail. The beam-column guardrail, the transition section, the transition wing wall, the narrowed section of a bridge concrete guardrail, and the standard section of a bridge concrete guardrail are sequentially arranged along the central dividing strip of the expressway, and the beam-column guardrail and the transition section are fixedly connected.

[0004] Due to special requirements such as crossing important water source protection areas, the single-column metal beam-column guardrail used in large-span cable-bearing bridges has a higher protection level, while the traditional integral concrete guardrail used in the approach bridges on both sides has a relatively low protection level. Its height is also lower than the beam-column guardrail, but its width is greater than the beam-column guardrail. However, the above-mentioned existing technology is unable to transition between the integral concrete guardrail and the single-column metal beam-column guardrail in the center dividing zone of different heights, different widths, and different protection levels. Utility Model Content

[0005] The purpose of the utility model is to overcome the above-mentioned technical deficiencies and propose a transition connection structure between a beam-column guardrail and a concrete guardrail to solve the technical problem in the prior art that it is impossible to transition between an integral concrete guardrail and a single-column metal beam-column guardrail in a center dividing zone of different heights, different widths and different protection levels.

[0006] In order to achieve the above technical purpose, the utility model adopts the following technical solutions:

[0007] The utility model provides a transition connection structure between a beam-column type guardrail and a concrete guardrail, comprising:

[0008] Beam-post guardrail;

[0009] Concrete guardrails are arranged at intervals from left to right with the beam-column guardrails; and

[0010] A transition connecting wall, wherein the first end of the transition connecting wall is connected to the concrete guardrail, and the second end of the transition connecting wall is connected to the beam-column guardrail through a connecting component. The height of the transition connecting wall gradually increases from left to right, and the thickness of the bottom of the transition connecting wall gradually decreases from left to right, so that the height and thickness of the first end are adapted to the concrete guardrail, and the height and thickness of the second end are adapted to the beam-column guardrail.

[0011] In some embodiments, the transition connecting wall includes a transition wall and a connecting wall connected in sequence from left to right, the transition wall is connected to the concrete guardrail, the height of the transition wall gradually increases from left to right, the thickness of the bottom of the transition wall gradually decreases from left to right, and the connecting wall is connected to the beam-column guardrail through a connecting component.

[0012] In some embodiments, the connecting wall includes a base, a connecting section and a center wall, the connecting section and the center wall are arranged on the base from left to right in sequence, the connecting section is connected to the transition wall, and the center wall is connected to the connecting assembly, wherein the center wall is located in the middle of the base, and the thickness of the center wall is less than the thickness of the connecting section.

[0013] In some embodiments, the connecting assembly includes two connecting beam assemblies and connecting bolts, the two connecting beam assemblies are located on opposite sides of the central wall, the two connecting beam assemblies are connected to the central wall through the connecting bolts, and the connecting beam assemblies are connected to the beam-column guardrail.

[0014] In some embodiments, the central wall is provided with a through hole;

[0015] The connecting beam assembly includes a connecting steel plate and a plurality of connecting beams. The connecting steel plate is penetrated by a mounting hole, and the mounting hole corresponds to the through hole. One side of the connecting steel plate abuts against the side of the central wall. The connecting bolts are passed through the through hole and the mounting hole to fix the two connecting steel plates on opposite sides of the central wall. The plurality of connecting beams are arranged at intervals along the vertical direction on the other side of the connecting steel plate, and the connecting beams are connected to the beam-column guardrail.

[0016] In some embodiments, there are multiple through holes and multiple mounting holes, and the multiple through holes and multiple mounting holes are arranged in an array. There are multiple connecting bolts, and the multiple connecting bolts correspond one-to-one to the multiple through holes.

[0017] In some embodiments, the beam-column guardrail includes a plurality of columns and a plurality of beams, the plurality of columns are arranged at intervals in the left-right direction, the plurality of beams are arranged at intervals from top to bottom, each beam is connected to a plurality of the columns, the number of the beams is consistent with the number of the connecting beams, and the beams are connected to the connecting beams.

[0018] In some embodiments, the size of the connecting beam is smaller than the size of the cross beam, the connecting beam is inserted into the cross beam, and the connecting beam is connected to the cross beam by bolts.

[0019] In some embodiments, there is a movable gap between the outer wall of the connecting beam and the inner wall of the cross beam;

[0020] The connecting beam is penetrated by a first elongated hole, the cross beam is penetrated by a through hole, and the bolts are passed through the first elongated hole and the through hole to install the connecting beam in the cross beam.

[0021] In some embodiments, the sum of the thickness of the two connecting beam assemblies and the central wall is equal to the thickness of the connecting segment.

[0022] Compared with the prior art, the utility model provides a transition connection structure between a beam-column guardrail and a concrete guardrail, wherein the concrete guardrail and the beam-column guardrail are arranged at intervals from left to right, the first end of the transition connection wall is connected to the concrete guardrail, and the second end of the transition connection wall is connected to the beam-column guardrail through a connection assembly, the height of the transition connection wall gradually increases from left to right, and the thickness of the bottom of the transition connection wall gradually decreases from left to right, so that the height and thickness of the first end are adapted to the concrete guardrail, and the height and thickness of the second end are adapted to the beam-column guardrail. Since the height of the concrete guardrail is less than the height of the beam-column guardrail, and the thickness of the concrete guardrail is greater than the thickness of the beam-column guardrail, in order to To achieve a smooth transition, the transition connecting wall needs to be compatible with both the concrete guardrail and the beam-column guardrail, so the height of the transition connecting wall gradually increases from left to right, and the thickness of the bottom of the transition connecting wall gradually decreases from left to right, so that the height and thickness of the first end are the same as the height and thickness of the concrete guardrail, and the height and thickness of the second end are the same as the height and thickness of the beam-column guardrail, achieving a smooth transition in height and thickness between the beam-column guardrail and the concrete guardrail in the center dividing zone, avoiding sudden height and thickness differences, and solving the technical problem in the prior art that it is impossible to transition between the integral concrete guardrail and the single-column metal beam-column guardrail in the center dividing zone of different heights, different widths, and different protection levels.

[0023] The above description is only an overview of the technical solution of the utility model. In order to more clearly understand the technical means of the utility model and implement it according to the contents of the specification, the preferred embodiment of the utility model is described in detail as follows with the accompanying drawings. The specific implementation method of the utility model is given in detail by the following embodiments and their drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a structural schematic diagram of an embodiment of a transition connection structure between a beam-column type guardrail and a concrete guardrail provided by the utility model;

[0025] Figure 2 yes Figure 1 A top view of the transition connection structure between the central beam column guardrail and the concrete guardrail;

[0026] Figure 3 yes Figure 1 A three-dimensional schematic diagram of the middle transition connecting wall;

[0027] Figure 4 yes Figure 1 Left view of the transition connection wall and connection components.

[0028] Description of reference numerals:

[0029] 1-beam-column guardrail, 11-column, 12-crossbeam;

[0030] 2-Concrete guardrail;

[0031] 3-transition connecting wall, 31-transition wall, 32-connecting wall, 321-base, 322-connecting section, 323-center wall;

[0032] 4-connecting beam assembly, 41-connecting steel plate, 42-connecting beam;

[0033] 5-Connecting bolts. DETAILED DESCRIPTION

[0034] In order to make the purpose, technical solution and advantages of the utility model more clear, the utility model is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the utility model and are not used to limit the utility model.

[0035] In order to solve the technical problem that the prior art cannot transition between the integral concrete guardrail and the single-column metal beam-column guardrail in the center dividing zone of different heights, different widths and different protection levels, the utility model provides a transition connection structure between the beam-column guardrail and the concrete guardrail, which can achieve a smooth transition in height and thickness between the beam-column guardrail and the concrete guardrail in the center dividing zone, avoiding sudden height and thickness differences, and solving the technical problem that the prior art cannot transition between the integral concrete guardrail and the single-column metal beam-column guardrail in the center dividing zone of different heights, different widths and different protection levels.

[0036] See also Figure 1 , Figure 1 It is a structural schematic diagram of the transition connection structure between the beam-column guardrail and the concrete guardrail in one embodiment of the utility model.

[0037] The utility model provides a transition connection structure between a beam-column guardrail and a concrete guardrail, comprising a beam-column guardrail 1, a concrete guardrail 2 and a transition connection wall 3; the concrete guardrail 2 and the beam-column guardrail 1 are arranged at intervals from left to right; the first end of the transition connection wall 3 is connected to the concrete guardrail 2, and the second end of the transition connection wall 3 is connected to the beam-column guardrail 1 through a connecting component, the height of the transition connection wall 3 gradually increases from left to right, and the thickness of the bottom of the transition connection wall 3 gradually decreases from left to right, so that the height and thickness of the first end are adapted to the concrete guardrail 2, and the height and thickness of the second end are adapted to the beam-column guardrail 1.

[0038] In this example, see Figure 2 and Figure 3The concrete guardrail 2 and the beam-column guardrail 1 are arranged at intervals from left to right, the first end of the transition connecting wall 3 is connected to the concrete guardrail 2, and the second end of the transition connecting wall 3 is connected to the beam-column guardrail 1 through a connecting component. The height of the transition connecting wall 3 gradually increases from left to right, that is, in the direction from the concrete guardrail 2 to the beam-column guardrail 1, the height of the transition connecting wall 3 gradually increases, and the thickness of the bottom of the transition connecting wall 3 gradually decreases from left to right, that is, in the direction from the concrete guardrail 2 to the beam-column guardrail 1, the thickness of the bottom of the transition connecting wall 3 gradually decreases, so that the height and thickness of the first end are adapted to the concrete guardrail 2, and the height and thickness of the second end are adapted to the beam-column guardrail 1. Since the height of the concrete guardrail 2 is less than the height of the beam-column guardrail 1, the The thickness of the concrete guardrail 2 is greater than the thickness of the beam-column guardrail 1. In order to achieve a smooth transition, the transition connecting wall 3 needs to be adapted to both the concrete guardrail 2 and the beam-column guardrail 1. Therefore, the height of the transition connecting wall 3 gradually increases from left to right, and the thickness of the bottom of the transition connecting wall 3 gradually decreases from left to right, so that the height and thickness of the first end are the same as the height and thickness of the concrete guardrail 2, and the height and thickness of the second end are the same as the height and thickness of the beam-column guardrail 1, achieving a smooth transition in height and thickness between the beam-column guardrail 1 and the concrete guardrail 2 in the center dividing zone, avoiding sudden height and thickness differences, and solving the technical problem in the prior art that it is impossible to transition between the integral concrete guardrail 2 and the single-column metal beam-column guardrail 1 in the center dividing zone of different heights, different widths, and different protection levels.

[0039] It should be noted that the thickness of the concrete guardrail 2 gradually increases from top to bottom, so the thickness of the bottom of the concrete guardrail 2 is much greater than the thickness of the top of the concrete guardrail 2, and the thickness of the bottom of the concrete guardrail 2 is greater than the thickness of the beam-column guardrail 1, while the thickness of the top of the concrete guardrail 2 is less than the thickness of the beam-column guardrail 1. Therefore, in order to achieve a smooth transition, the thickness of the top of the transition connecting wall 3 gradually increases from left to right, the thickness of the bottom of the transition connecting wall 3 gradually decreases from left to right, and the thickness of the transition connecting wall 3 itself gradually increases from top to bottom.

[0040] In this embodiment, the transition connecting wall 3 is a concrete wall, and the concrete guardrail 2 is also made of concrete, so the transition connecting wall 3 can be directly connected to the concrete guardrail 2 by pouring concrete, and the beam-column type guardrail 1 is made of metal material, and the transition connecting wall 3 cannot be directly connected to the beam-column type guardrail 1, so the transition connecting wall 3 and the beam-column type guardrail 1 are connected through the connecting assembly.

[0041] In some embodiments, see Figure 2 and Figure 3 The transition connecting wall 3 includes a transition wall 31 and a connecting wall 32 connected in sequence from left to right. The transition wall 31 is connected to the concrete guardrail 2. The height of the transition wall 31 gradually increases from left to right. The thickness of the bottom of the transition wall 31 gradually decreases from left to right. The connecting wall 32 is connected to the beam-column guardrail 1 through a connecting component.

[0042] In this embodiment, the end of the transition wall 31 away from the connecting wall 32 constitutes the first end. The main function of the transition wall 31 is to achieve a smooth transition in height and thickness between the beam-column guardrail 1 and the concrete guardrail 2. Therefore, the height of the transition wall 31 gradually increases from left to right, and the thickness of the bottom of the transition wall 31 gradually decreases from left to right. The end of the connecting wall 32 away from the transition wall 31 constitutes the second end. The function of the connecting wall 32 is to connect the beam-column guardrail 1. Therefore, the connecting wall 32 is generally arranged in a regular block shape without obvious gradual change in size.

[0043] In the embodiment, the transition wall 31 and the connecting wall 32 are integrally formed and are concrete walls. They can be formed into various shapes according to actual needs, and the shape is easy to control. The transition wall 31 with a gradual thickness and height can be obtained to achieve a smooth transition between the concrete guardrail 2 and the beam-column guardrail 1. In addition, the concrete wall has high strength, which ensures the anti-collision ability of the transition connection.

[0044] In some embodiments, see Figure 3 The connecting wall 32 includes a base 321, a connecting section 322 and a center wall 323. The connecting section 322 and the center wall 323 are arranged on the base 321 from left to right. The connecting section 322 is connected to the transition wall 31, and the center wall 323 is connected to the connecting component. The center wall 323 is located in the middle of the base 321, and the thickness of the center wall 323 is less than the thickness of the connecting section 322.

[0045] In this embodiment, the center wall 323 is located in the middle of the base 321, and the center wall 323 and the base 321 are connected in sequence from top to bottom, and the connecting section 322 and the components consisting of the center wall 323 and the base 321 are connected in sequence from left to right, the thickness of the connecting section 322 is the same as the thickness of the base 321, and the thickness of the center wall 323 is less than the thickness of the connecting section 322, so that the base 321, the connecting section 322 and the center wall 323 together enclose two grooves, and the two grooves are located on opposite sides of the center wall 323, and the grooves are used to accommodate the connecting components.

[0046] In some embodiments, see Figures 2 to 4 The connecting assembly includes two connecting beam assemblies 4 and connecting bolts 5. The two connecting beam assemblies 4 are located on opposite sides of the central wall 323. The two connecting beam assemblies 4 are connected to the central wall 323 through the connecting bolts 5. The connecting beam assemblies 4 are connected to the beam-column guardrail 1.

[0047] In this embodiment, cross beams 12 are provided on opposite sides of the columns 11 on the beam-column type guardrail 1. In order to be able to connect with the cross beams 12 on both sides, two connecting beam assemblies 4 are provided. The two connecting beam assemblies 4 are respectively connected to the cross beams 12 on both sides one by one. The two connecting beam assemblies 4 are respectively located in the two grooves, and the connecting beam assemblies 4 are abutted against the side of the center wall 323, and the two connecting beams 42 are simultaneously connected and fixed to the center wall 323 through the connecting bolts 5.

[0048] In some embodiments, the center wall 323 is penetrated by a through hole; the connecting beam assembly 4 includes a connecting steel plate 41 and a plurality of connecting beams 42, the connecting steel plate 41 is penetrated by a mounting hole, the mounting hole corresponds to the through hole, one side of the connecting steel plate 41 abuts against the side of the center wall 323, the connecting bolts 5 are passed through the through hole and the mounting hole to fix the two connecting steel plates 41 on the opposite sides of the center wall 323, a plurality of the connecting beams 42 are arranged at intervals along the vertical direction on the other side of the connecting steel plate 41, and the connecting beams 42 are connected to the beam-column guardrail 1.

[0049] In this embodiment, the through hole connects the two grooves, and the through hole is used for the connecting bolt 5 to pass through. The mounting hole corresponds to the through hole and is also used for the connecting bolt 5 to pass through. One side of the connecting steel plate 41 is in contact with the center wall 323, and the connecting beam 42 is fixed to the other side of the connecting steel plate 41 by welding. Then, the two connecting steel plates 41 are fixed to the opposite sides of the center wall 323 by the connecting bolts 5, and the connecting steel plate 41 and the center wall 323 are leveled by on-site grouting to eliminate manufacturing errors, avoid on-site cutting, and avoid the adverse effects of thickness difference and height difference between the connecting wall 32 and the beam-column guardrail 1.

[0050] In this embodiment, the connection beam 42 and the connection steel plate 41 are welded and anti-corrosion painted to form an integral structure.

[0051] In this embodiment, the connecting beam 42 is a metal beam with high strength, good toughness and strong impact resistance. The connecting beam 42 can be a hollow beam. In order to improve the strength of the connecting beam 42, the wall thickness of the connecting beam 42 is thickened. Since the end of the beam-column guardrail 1 has weak impact resistance, a plurality of connecting beams 42 are arranged between the beam-column guardrail 1 and the connecting wall 32 and the wall thickness of the connecting beam 42 is thickened, so that the impact resistance of the end of the connecting beam 42 reaches the impact resistance of other parts.

[0052] In this embodiment, the connecting bolts 5 can be various existing high-strength bolts, and the nuts are round-cap nuts with an exposed length less than the thickness of the connecting beam 42 to reduce damage to the vehicle during a collision.

[0053] In some embodiments, there are multiple through holes and multiple mounting holes, and the multiple through holes and multiple mounting holes are arranged in an array. There are multiple connecting bolts 5, and the multiple connecting bolts 5 correspond one-to-one to the multiple through holes.

[0054] In some embodiments, see Figures 1 to 4 The beam-column type guardrail 1 includes a plurality of columns 11 and a plurality of beams 12. The plurality of columns 11 are arranged at intervals along the left and right directions, and the plurality of beams 12 are arranged at intervals from top to bottom. Each beam 12 is connected to a plurality of columns 11. The number of beams 12 is consistent with the number of connecting beams 42, and the beams 12 are connected to the connecting beams 42.

[0055] In some embodiments, the size of the connecting beam 42 is smaller than the size of the cross beam 12 , the connecting beam 42 is inserted into the cross beam 12 , and the connecting beam 42 is connected to the cross beam 12 via bolts.

[0056] In this embodiment, the other end of the connecting beam 42 extends into the cross beam 12 and is connected to the cross beam 12 by bolts. In this way, the connecting beam 42 and the cross beam 12 can be smoothly connected.

[0057] In some embodiments, there is a movable gap between the outer wall of the connecting beam 42 and the inner wall of the cross beam 12; the connecting beam 42 is penetrated by a first elongated hole, and the cross beam 12 is penetrated by a through hole, and the bolts are passed through the first elongated hole and the through hole to install the connecting beam 42 in the cross beam 12.

[0058] In this embodiment, the connecting beam 42 has a longer portion located in the cross beam 12, so that the cross beam 12 located at the end has higher strength. Since there is a certain gap between the outer wall of the connecting beam 42 and the inner wall of the cross beam 12, the connecting beam 42 can move up, down, left and right within a certain range, and the connecting beam 42 is penetrated by a first elongated hole, the width of the first elongated hole is greater than the diameter of the bolt. Due to the setting of the elongated hole, the bolt can connect the connecting beam 42 and the cross beam 12 without interfering with the movement of the connecting beam 42. When the bridge is deformed and the positional relationship between the concrete guardrail 2 and the beam-column guardrail 1 changes, the connecting beam 42 can be adaptively adjusted in the cross beam 12 to realize the position change of the beam-column guardrail 1 relative to the concrete guardrail.

[0059] In some embodiments, the sum of the thickness of the two connecting beam assemblies 4 and the central wall 323 is equal to the thickness of the connecting section 322 .

[0060] In this embodiment, the thickness of the beam-column guardrail 1 is the same as the thickness of the connecting section 322, and the connecting beam assembly 4 is located in the groove. In order to avoid the total thickness of the connecting beam assembly 4 and the center wall 323 being greater than the thickness of the beam-column guardrail 1, the side of the connecting beam assembly 4 is flush with the side of the connecting section 322, that is, the sum of the thickness of the two connecting beam assemblies 4 and the center wall 323 is equal to the thickness of the connecting section 322.

[0061] In order to better understand the present invention, the following Figures 1 to 4 The technical solution of the utility model is described in detail:

[0062] The concrete guardrail 2, the transition wall 31, the connecting wall 32, and the beam-column guardrail 1 are sequentially connected from left to right, the thickness and height of the connecting wall 32 are consistent with the height of the beam-column guardrail 1, the transition wall 31 is close to one end of the concrete guardrail 2, and its height and thickness are consistent with the height and thickness of the concrete guardrail 2, and the transition wall 31 is close to one end of the connecting wall 32, and its height and thickness are consistent with the height and thickness of the connecting wall 32. In this way, a smooth transition in height and thickness between the beam-column guardrail 1 and the concrete guardrail 2 in the center dividing zone can be achieved, avoiding sudden height and thickness differences.

[0063] The present application adopts a connecting beam 42, a connecting steel plate 41, a transition wall 31 and a connecting wall 32. The outer surface of the connecting beam 42 is of the same thickness as the end of the connecting wall 32 without protrusions, thereby achieving a smooth transition between the integral concrete guardrail 2 and the single-column metal beam-column guardrail 1 of different heights and widths in the center dividing strip.

[0064] In the present application, the metal connecting beam 42 and the connecting steel plate 41 are welded in the factory and anti-corrosion painted to form an assembled component, which is then transported to the site for installation, which is simple and environmentally friendly. To ensure that the outer surface of the connecting beam 42 is flush with the connecting section 322, the connecting steel plate 41 and the center wall 323 are leveled by on-site grouting to eliminate manufacturing errors and avoid on-site cutting.

[0065] The structure in the present application has high strength and has a greater bearing capacity when a vehicle collides. There is a gap between the connecting beam 42 and the cross beam 12. When the bridge is deformed, the connecting beam 42 moves in the cross beam 12 along with the connecting wall 32, and can adapt to the position changes of the concrete guardrail 2 and the metal guardrail at the expansion joint.

[0066] The specific implementation methods of the utility model described above do not constitute a limitation on the protection scope of the utility model. Any other corresponding changes and modifications made according to the technical concept of the utility model should be included in the protection scope of the claims of the utility model.

Claims

1. A transition connection structure between a beam-column guardrail and a concrete guardrail, characterized in that: It includes: Beam-post guardrail; Concrete guardrails are arranged at intervals from left to right with the beam-column guardrails; as well as A transition connecting wall, wherein a first end of the transition connecting wall is connected to the concrete guardrail, and a second end of the transition connecting wall is connected to the beam-column type guardrail through a connecting assembly, and a height of the transition connecting wall gradually increases from left to right, and a thickness of a bottom of the transition connecting wall gradually decreases from left to right, so that the height and thickness of the first end are adapted to the concrete guardrail, and the height and thickness of the second end are adapted to the beam-column type guardrail; The transition connecting wall comprises a transition wall and a connecting wall connected in sequence from left to right, the transition wall is connected to the concrete guardrail, the height of the transition wall gradually increases from left to right, the thickness of the bottom of the transition wall gradually decreases from left to right, the connecting wall is connected to the beam-column type guardrail through a connecting assembly, the connecting wall comprises a base, a connecting section and a central wall, the connecting section and the central wall are arranged in sequence on the base from left to right, the connecting section is connected to the transition wall, the central wall is connected to the connecting assembly, wherein the central wall is located in the middle of the base, and the thickness of the central wall is less than the thickness of the connecting section, and the central wall is penetrated by a through hole; The connecting assembly includes two connecting beam assemblies and connecting bolts. The two connecting beam assemblies are located on opposite sides of the center wall. The two connecting beam assemblies are connected to the center wall through the connecting bolts. The connecting beam assembly is connected to the beam-column type guardrail. The connecting beam assembly includes a connecting steel plate and a plurality of connecting beams. The connecting steel plate is penetrated with mounting holes, and the mounting holes correspond to the through holes. One side of the connecting steel plate abuts against the side of the center wall. The connecting bolts are passed through the through holes and the mounting holes to fix the two connecting steel plates to opposite sides of the center wall. A plurality of connecting beams are arranged at intervals along the vertical direction on the other side of the connecting steel plate, and the connecting beams are connected to the beam-column type guardrail.

2. The transition connection structure between beam-column guardrail and concrete guardrail according to claim 1 is characterized in that: There are multiple through holes and multiple mounting holes, and the multiple through holes and multiple mounting holes are arranged in an array. There are multiple connecting bolts, and the multiple connecting bolts correspond to the multiple through holes one by one.

3. The transition connection structure between beam-column guardrail and concrete guardrail according to claim 1 is characterized in that: The beam-column type guardrail includes a plurality of columns and a plurality of beams, wherein the plurality of columns are arranged at intervals along the left-right direction, and the plurality of beams are arranged at intervals from top to bottom, each beam is connected to a plurality of the columns, the number of the beams is consistent with the number of the connecting beams, and the beams are connected to the connecting beams.

4. The transition connection structure between beam-column guardrail and concrete guardrail according to claim 3 is characterized in that: The size of the connecting beam is smaller than that of the cross beam, the connecting beam is inserted into the cross beam, and the connecting beam is connected to the cross beam by bolts.

5. The transition connection structure between beam-column guardrail and concrete guardrail according to claim 4 is characterized in that: There is a movable gap between the outer wall of the connecting beam and the inner wall of the cross beam; The connecting beam is penetrated by a first elongated hole, the cross beam is penetrated by a through hole, and the bolts are passed through the first elongated hole and the through hole to install the connecting beam in the cross beam.

6. The transition connection structure between beam-column guardrail and concrete guardrail according to claim 1 is characterized in that: The sum of the thickness of the two connecting beam assemblies and the central wall is equal to the thickness of the connecting section.

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