A type of precast bridge guard plate

Abstract

This utility model discloses a precast bridge guardrail, comprising a guardrail, supporting beams, several supporting columns, and a through beam. The guardrail has two sides, designated as a protective surface and a supporting surface, respectively. The supporting beams are fixedly mounted on the supporting surfaces, with their length direction parallel to the supporting surfaces. All supporting columns are evenly spaced and parallel, fixedly mounted on the supporting surfaces, perpendicular to the supporting beams, and one end of each column is fixedly connected to the supporting beam. The through beam is fixedly mounted on the supporting surfaces, parallel to the supporting beams, and passes through all supporting columns, being fixedly connected to all of them. This design solves the problem that bridge guardrails cannot simultaneously meet the requirements of self-weight, structural performance, and installation strength.

Description

Technical Field

[0001] This utility model relates to the field of bridge protection technology, specifically to a precast bridge guard plate. Background Technology

[0002] Bridge and road guardrails are safety facilities installed on both sides of a bridge or road in the width direction. They are an important component of the bridge or road structure, primarily intended to increase the durability and safety of the bridge or road. Specifically, bridge and road guardrails prevent vehicles or other objects from falling off the bridge, reducing safety hazards; during driving, they act as a barrier to prevent vehicles from derailing or sliding off the bridge; and they can withstand a certain amount of impact, reducing damage from direct vehicle collisions.

[0003] Considering the issue of self-weight, bridge and road guardrails are generally thin plate-shaped structures supplemented with different forms of support structures to ensure that the thin plate-shaped structure can have sufficient structural support performance and anti-collision and compressive resistance performance. However, in actual manufacturing, it is difficult to take into account the self-weight, structural performance and installation strength of bridge and road guardrails, resulting in problems such as excessive self-weight making installation inconvenient, and light self-weight but insufficient structural performance.

[0004] Therefore, this application is hereby submitted. Utility Model Content

[0005] The purpose of this utility model is to provide a precast bridge guard plate that solves the problem that bridge guard plates cannot simultaneously take into account their self-weight, structural performance and installation strength.

[0006] This invention is achieved through the following technical solution:

[0007] A precast bridge guardrail includes: a guardrail with two sides respectively designated as a protective surface and a supporting surface; a supporting beam fixedly mounted on the supporting surface, the length direction of the supporting beam being parallel to the supporting surface; a plurality of supporting columns evenly spaced and parallel, all the supporting columns fixedly mounted on the supporting surface, the supporting columns being perpendicular to the supporting beam, and one end of the supporting column being fixedly connected to the supporting beam; and a through beam fixedly mounted on the supporting surface, the through beam being parallel to the supporting beam, the through beam penetrating all the supporting columns and being fixedly connected to all the supporting columns.

[0008] In another preferred embodiment, the guard plate is vertically arranged, and the support beam is located at the lower part of the guard plate; the bottom end of the support column is fixedly connected to the support beam, and the top end is flush with the top edge of the guard plate; the through beam is located at the middle of the length direction of the support column, and the thickness of the through beam perpendicular to the direction of the guard plate is much smaller than the thickness of the support column perpendicular to the direction of the guard plate.

[0009] In another preferred embodiment, the through beam and the guard plate are integrally formed.

[0010] In another preferred embodiment, the protective surface is an arc surface, so that the thickness of the protective plate gradually decreases from the middle to both ends along the length direction of the support column.

[0011] In another preferred embodiment, the support beam extends in a direction perpendicular to the guard plate to be flush with the support column, so as to form a support surface at the bottom of the support beam. The support surface is used to be laid horizontally and fixedly connected to the edge of the bridge deck or road surface in the width direction. The portion of the support surface located below the support beam is used to be attached to the side wall of the bridge deck or road surface in the width direction to form a right-angle support structure with the support surface.

[0012] In another preferred embodiment, a reinforcing slope is provided at the right-angle corner between the bottom end of the support column and the top surface of the support beam. The surface of the reinforcing slope is a smoothly transitioning concave arc surface, and multiple parallel grooves are excavated on the surface of the reinforcing slope.

[0013] In another preferred embodiment, a first reinforcing cage is pre-embedded in the support column, the first reinforcing cage extending along the length of the support column; a second reinforcing cage is pre-embedded in the through beam, the second reinforcing cage extending along the length of the through beam; the first reinforcing cage and the second reinforcing cage are interposed.

[0014] In another preferred embodiment, multiple pins are vertically embedded at the top of the support column. The lower part of the pins is welded to the first reinforcing cage, and the upper part of the pins is located outside the support column, so as to pin the top of the support column to the top protective plate.

[0015] In another preferred embodiment, multiple connecting rods are vertically embedded at the bottom of the support column, with the lower part of the connecting rods embedded in the support beam and the upper part welded to the first reinforcing cage.

[0016] In another preferred embodiment, a support plate is pre-embedded in the support beam, the bottom end of the connecting rod is perpendicularly inserted through the support plate, the bottom end of the connecting rod has an external thread and is screwed with a pair of nuts, and the support plate is sandwiched between the pair of nuts; a threaded cylinder is perpendicularly inserted through the support plate, and the two ends of the threaded cylinder respectively penetrate the top surface and the bottom surface of the support beam.

[0017] Because this utility model adopts the above-mentioned technical solution, it has the following positive effects compared with the prior art:

[0018] This utility model discloses a precast bridge guard plate. By setting the guard plate, it achieves the basic protection function. Support beams are installed on the support surface of the guard plate, which improves the lateral structural strength of the guard plate with a slight increase in weight. Furthermore, the support beams are fixedly connected to the external environment (e.g., bridge deck or road surface), increasing the structural area at the connection point and ensuring connection performance. Support columns are installed perpendicular to the support beams, with their bottom ends fixedly connected to the support beams. This improves the longitudinal structural strength of the guard plate and, because the bottom ends of the support columns are fixedly connected to the support beams, allows the weight of the support columns to be transferred to the external environment at the connection point, thus preventing significant weight loss. The design enhances the self-weight of the bridge guard plate. By incorporating through beams, the support beams, located at the bottom of the support columns, prevent lateral support in the middle and upper parts of the columns. When the guard plate is impacted, deformation under stress can cause the support columns to tilt to varying degrees, resulting in the weight of the unsupported middle and upper parts of the support columns acting in the opposite direction onto the guard plate. The through beams, inserted through the middle of the support columns, provide lateral structural support to the middle and upper parts of the columns, thus preventing this situation. Through the combined effect of these features, this precast bridge guard plate effectively solves the problem of bridge guard plates failing to balance self-weight, structural performance, and installation strength. Attached Figure Description

[0019] The accompanying drawings, which are included to provide a further understanding of the embodiments of the present invention and form part of this application, do not constitute a limitation thereof. In the drawings:

[0020] Figure 1 A front view schematic diagram of a precast bridge guard plate provided by this utility model;

[0021] Figure 2 A top view of a precast bridge guard plate provided by this utility model;

[0022] Figure 3 A side view of a precast bridge guard plate provided by this utility model;

[0023] Figure 4 This is a partial cross-sectional schematic diagram of a precast bridge guard plate provided by this utility model.

[0024] The attached diagram shows the markings and corresponding component names:

[0025] 10-Guard plate; 11-Protective surface; 12-Supporting surface; 20-Supporting beam; 21-Supporting surface; 22-Reinforced slope; 221-Trench; 23-Supporting plate; 24-Threaded cylinder; 30-Supporting column; 31-First reinforcing cage; 32-Pin; 33-Connecting rod; 331-Nut; 40-Through beam; 41-Second reinforcing cage. Detailed Implementation

[0026] The technical solution of this utility model will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0027] In the description of this utility model, it should be understood that the orientation or positional relationship indicated by terms such as "upper", "lower", "left", "right", "inner", "outer", "front", "back", "horizontal", and "vertical" are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model, and are not intended to indicate or imply that the device or component referred to must have a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0028] It should be noted that the terms "horizontal" and "vertical" in this utility model are used to describe approximate positional relationships, and not strictly "horizontal plane" or "vertical plane".

[0029] Example

[0030] Please refer to Figures 1 to 4 As shown, this embodiment provides a precast bridge guard plate, comprising: a guard plate 10, the two sides of which are respectively configured as a protective surface 11 and a supporting surface 12; a second, a supporting beam 20, which is fixedly disposed on the supporting surface 12, and the length direction of the supporting beam 20 is parallel to the supporting surface 12; a third, a plurality of supporting columns 30, all of which are evenly spaced and parallel, fixedly disposed on the supporting surface 12, perpendicular to the supporting beam 20, and one end of the supporting column 30 is fixedly connected to the supporting beam 20; and a fourth, a through beam 40, which is fixedly disposed on the supporting surface 12, parallel to the supporting beam 20, and passes through all the supporting columns 30 and is fixedly connected to all the supporting columns 30.

[0031] The precast bridge guard plate disclosed in this embodiment achieves basic protection by setting guard plate 10. Support beams 20 are installed on the support surface 12 of guard plate 10. Firstly, this increases the lateral structural strength of guard plate 10 with a slight increase in weight. Secondly, the support beams 20 are fixedly connected to the external environment (e.g., bridge deck or road surface) to increase the structural area at the connection point, thereby ensuring connection performance. Support columns 30 are installed perpendicular to the support beams 20, and their bottom ends are fixedly connected to the support beams 20. This increases the longitudinal structural strength of guard plate 10. Secondly, because the bottom ends of the support columns 30 are fixedly connected to the support beams 20, the weight of the support columns 30 can be transferred to the external environment at the connection point through the support beams 20, thus preventing significant weight loss. The self-weight of the guard plate 10 is increased. By setting the through beam 40, since the support beam 20 is located at the bottom of the support column 30, there is no lateral support in the middle and upper parts of the support column 30. When the guard plate 10 is subjected to impact, the deformation of the guard plate 10 under stress will likely cause the support column 30 to tilt to varying degrees. As a result, the self-weight of the middle and upper parts of the support column 30, which lacks lateral support, will act in the opposite direction on the guard plate 10. However, the through beam 40, by passing through the middle of the support column 30, provides lateral structural support for the middle and upper parts of the support column 30, thereby avoiding the above situation. Through the cooperation of the above features, the precast bridge guard plate can effectively solve the problem that the bridge guard plate cannot take into account the self-weight, structural performance and installation strength of the bridge guard plate.

[0032] To further enhance the lateral structural performance of the through beam 40 on the support column 30 and further reduce the self-weight of the through beam 40, the guard plate 10 is vertically arranged, and the support beam 20 is located at the lower part of the guard plate 10; the bottom end of the support column 30 is fixedly connected to the support beam 20, and the top end is flush with the top edge of the guard plate 10; the through beam 40 is located at the middle of the length direction of the support column 30, and the thickness of the through beam 40 perpendicular to the direction of the guard plate 10 is much smaller than the thickness of the support column 30 perpendicular to the direction of the guard plate 10.

[0033] Preferably, the through beam 40 and the guard plate 10 are integrally formed.

[0034] To further enhance the anti-collision and anti-structural deformation effect of the guard plate 10, the protective surface 11 is an arc surface, so that the thickness of the guard plate 10 gradually decreases from the middle to both ends along the length direction of the support column 30.

[0035] By setting the curved protective surface 11, the convex curved surface has better anti-collision performance and deformation resistance compared with the flat surface.

[0036] To further improve the connection performance between the support beam 20 and the external environment, as well as the structural support performance of the support column 30, the support beam 20 extends along a direction perpendicular to the guard plate 10 to be flush with the support column 30, so as to form a support surface 21 at the bottom of the support beam 20. The support surface 21 is used to be laid horizontally and fixedly connected to the edge of the bridge deck or road surface in the width direction. The part of the support surface 12 located below the support beam 20 is used to be attached to the side wall in the width direction of the bridge deck or road surface to form a right-angle support structure with the support surface 21.

[0037] To further improve the anti-tilting performance of the support column 30 under impact, a reinforcing slope 22 is provided at the right-angle corner between the bottom end of the support column 30 and the top surface of the support beam 20. The slope surface of the reinforcing slope 22 is a smoothly transitioned concave arc surface, and multiple parallel grooves 221 are excavated on the slope surface of the reinforcing slope 22.

[0038] To further improve the structural performance of the support column 30 and the through beam 40, and to further improve the connection performance between the two, a first steel cage 31 is pre-embedded in the support column 30, and the first steel cage 31 extends along the length direction of the support column 30; a second steel cage 41 is pre-embedded in the through beam 40, and the second steel cage 41 extends along the length direction of the through beam 40; the first steel cage 31 and the second steel cage 41 are inserted through each other.

[0039] To facilitate the installation of a top protective plate at the top of the support column 30 when needed, multiple pins 32 are vertically embedded at the top of the support column 30. The lower part of the pins 32 is welded to the first steel cage 31, and the upper part of the pins 32 is located outside the support column 30, so as to pin the top of the support column 30 to the top protective plate.

[0040] To further improve the connection performance between the support column 30 and the support beam 20, multiple connecting rods 33 are vertically embedded at the bottom of the support column 30. The lower part of the connecting rods 33 is embedded in the support beam 20, and the upper part is welded to the first steel cage 31.

[0041] To further improve the connection performance between the support column 30 and the support beam 20, and to reserve connection holes for connection with the external environment in the support beam 20, a support plate 23 is pre-embedded in the support beam 20. The bottom end of the connecting rod 33 is vertically inserted through the support plate 23. The bottom end of the connecting rod 33 has an external thread and is screwed with a pair of nuts 331. The support plate 23 is sandwiched between the pair of nuts 331. A threaded cylinder 24 is vertically inserted through the support plate 22. The two ends of the threaded cylinder 24 pass through the top and bottom surfaces of the support beam 20, respectively.

[0042] The above description is only a preferred embodiment of the present utility model and does not limit the implementation method and protection scope of the present utility model. Those skilled in the art should realize that all solutions obtained by equivalent substitutions and obvious changes made based on the description and illustrations of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A pre-runner bridge shield characterized in that, include: A protective plate (10), wherein the two sides of the protective plate (10) are respectively configured as a protective surface (11) and a supporting surface (12); A support beam (20) is fixedly disposed on the support surface (12), and the length direction of the support beam (20) is parallel to the support surface (12); A number of support columns (30) are arranged in parallel at even intervals. The support columns (30) are fixedly arranged on the support surface (12). The support columns (30) are arranged perpendicularly to the support beam (20). One end of the support column (30) is fixedly connected to the support beam (20). Through beam (40), the through beam (40) is fixedly set on the support surface (12), the through beam (40) is set parallel to the support beam (20), the through beam (40) passes through all the support columns (30) and is fixedly connected to all the support columns (30).

2. The runner bridge shield of claim 1, wherein The guard plate (10) is vertically arranged, and the support beam (20) is located at the lower part of the guard plate (10); The bottom end of the support column (30) is fixedly connected to the support beam (20), and the top end is flush with the top edge of the guard plate (10); The through beam (40) is located at the middle of the length direction of the support column (30), and the thickness of the through beam (40) perpendicular to the direction of the guard plate (10) is much smaller than the thickness of the support column (30) perpendicular to the direction of the guard plate (10).

3. The runner bridge shield of claim 2, wherein, The through beam (40) and the guard plate (10) are integrally formed.

4. The runner bridge shield of claim 3, wherein, The protective surface (11) is an arc surface, so that the thickness of the protective plate (10) gradually decreases from the middle to both ends along the length direction of the support column (30).

5. The precast bridge guardrail according to claim 2, characterized in that, The support beam (20) extends in a direction perpendicular to the guard plate (10) to be flush with the support column (30) to form a support surface (21) at the bottom of the support beam (20). The support surface (21) is used to be laid horizontally and fixedly connected to the edge of the bridge deck or road surface in the width direction. The portion of the support surface (12) located below the support beam (20) is used to attach to the side wall in the width direction of the bridge deck or road surface to form a right-angle support structure with the support surface (21).

6. The runner bridge shield of claim 5, wherein, A reinforcing slope (22) is provided at the right-angle corner between the bottom end of the support column (30) and the top surface of the support beam (20). The slope surface of the reinforcing slope (22) is a smoothly transitioning concave arc surface, and multiple parallel grooves (221) are excavated on the slope surface of the reinforcing slope (22).

7. A runner bridge shield according to any one of claims 1 to 6, wherein The support column (30) is pre-embedded with a first steel cage (31), which extends along the length of the support column (30). A second steel cage (41) is pre-embedded in the through beam (40), and the second steel cage (41) extends along the length direction of the through beam (40); The first steel cage (31) and the second steel cage (41) are inserted through each other.

8. The runner bridge shield of claim 7, wherein, The top of the support column (30) has a number of pins (32) vertically embedded. The lower part of the pins (32) is welded to the first steel cage (31), and the upper part of the pins (32) is located outside the support column (30) to make the top of the support column (30) pin-connected to the top guard plate.

9. The runner bridge shield of claim 7, wherein, The bottom end of the support column (30) has a number of vertically embedded connecting rods (33). The lower part of the connecting rods (33) is embedded in the support beam (20), and the upper part is welded to the first steel cage (31).

10. The runner bridge shield of claim 9, wherein, The support beam (20) has a support plate (23) embedded in it. The bottom end of the connecting rod (33) is vertically inserted through the support plate (23). The bottom end of the connecting rod (33) has an external thread and is screwed with a pair of nuts (331). The support plate (23) is sandwiched between the pair of nuts (331). The support plate (23) is vertically fitted with a threaded cylinder (24), and the two ends of the threaded cylinder (24) pass through the top and bottom surfaces of the support beam (20), respectively.

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