Bridge guardrail capable of improving protection performance

Abstract

The utility model discloses a bridge guardrail capable of improving protection performance, which comprises a stand column, an anti-blocking piece, a D-shaped beam and a corrugated plate, and the side part of the stand column is fixedly connected with the corrugated plate through the anti-blocking piece; and the D-shaped beam is fixedly connected to the side part of the upright post above the corrugated plate. The problems that in the prior art, a bridge guardrail is single in structure, and the requirement for providing different buffering and protection performance under the condition of various collision forces cannot be met are solved. According to the bridge guardrail capable of improving the protection performance, the corrugated plate is applied to the bridge guardrail, and transition connection between the corrugated plate and the roadbed section corrugated guardrail is more convenient and safer. The D-shaped beam has better buffering performance, the injury of collision to passengers is reduced, and the streamline design is smaller in wind resistance. The anti-blocking piece improves the buffering performance for small vehicles, the corrugated plate is universal and mature, and the guardrail is small in overall steel consumption, high in safety, easy to machine and convenient and fast to construct.

Description

Technical Field

[0001] The utility model relates to the technical field of bridge guardrail structure design, and in particular to a bridge guardrail with improved protection performance. Background Art

[0002] The protective performance of bridge guardrails is one of the important factors affecting highway safety. In order to improve the protective performance of bridge guardrails, high-quality steel and anti-blocking buffer blocks are needed to absorb energy and reduce displacement during collision. Special base designs can also adapt to steel bridge decks and concrete bridge decks. With the continuous development of design concepts and the continuous changes in driving safety protection systems, the protection level and safety requirements of bridge guardrails are also constantly improving.

[0003] The protective performance of the corrugated beam guardrail is to absorb the collision energy through the friction between the vehicle and the guardrail, the friction between the vehicle and the ground, and the certain elastic and plastic deformation of the vehicle and the guardrail itself, prolong the action time of the collision process, reduce the speed to ensure the safety of personnel and reduce vehicle damage.

[0004] In the prior art, bridge guardrails only have a single protective structure. In order to meet the need of protecting against collisions with large energy, the designed structural rigidity is relatively large. When encountering a collision with small energy, it is easy to be unable to deform, which is easy to cause damage to the colliding vehicle. Or when encountering a large collision, it cannot achieve protective performance, causing an accident in which the vehicle runs off the bridge, seriously affecting the safety of use.

[0005] It can be seen that the bridge guardrail structure of the prior art is single and cannot meet the requirements of providing different buffering and protection performances under various collision force conditions. Utility Model Content

[0006] In view of this, the main purpose of the utility model is to provide a bridge guardrail that can provide buffering through corrugated plates and is safer; the D-shaped beam reduces the damage to occupants caused by collisions, and the streamlined design has less wind resistance; the anti-blocking block improves the protection performance for small vehicles; the corrugated plate is universal and mature, the guardrail uses a small amount of steel, has high safety, is simple to process, and is convenient to construct to improve the protection performance.

[0007] In order to achieve the above object, the technical solution of the utility model is implemented as follows:

[0008] A bridge guardrail with improved protection performance comprises: a column, an anti-blocking member, a D-shaped beam and a corrugated plate, wherein the side of the column is fixedly connected to the corrugated plate via the anti-blocking member; and the side of the column is fixedly connected to the D-shaped beam above the corrugated plate.

[0009] In a preferred embodiment, the anti-obstruction component includes: a bending plate and an anti-obstruction block, the two sides of the bending plate are fixedly connected to the corrugated plate and the column respectively, and the anti-obstruction block is arranged between the middle of the bending plate and the corrugated plate.

[0010] In a preferred embodiment, the bending plate includes: a U-shaped plate and an extending plate, the ends of the two side walls of the U-shaped plate are integrally formed and connected to the extending plate, the extending plate and the corrugated plate are fixedly connected, the middle part of the U-shaped plate is fixedly connected to the anti-obstruction block, and the other side of the U-shaped plate is fixedly connected to the column.

[0011] In a preferred embodiment, one side of the anti-blocking block is fixedly connected to the U-shaped plate, and the other side of the anti-blocking block is flush with the protruding plate or lower than the surface where the protruding plate is located.

[0012] In a preferred embodiment, the middle portion of the anti-blocking block is a cavity structure.

[0013] In a preferred embodiment, the bottom of the anti-blocking block is a mesh structure bottom cover, and the interior of the cavity structure is filled with a deformable buffer material.

[0014] In a preferred embodiment, the D-shaped beam and the column are fixedly connected via a connecting frame.

[0015] In a preferred embodiment, the connecting frame includes: a horizontal plate, a vertical plate and a groove plate, the horizontal plate is integrally formed on one side of the upper end of the vertical plate, the other side of the vertical plate is fixedly connected to the groove plate, the groove plate is fixedly connected to the D-beam, and the horizontal plate is fixedly connected to the upper end of the column.

[0016] In a preferred embodiment, at least two trough plates are arranged in parallel, connecting holes are opened through the upper and lower sides of the trough plates, a through hole is opened through the D-shaped beam, and connecting pieces are arranged through the connecting holes and the through holes.

[0017] In a preferred embodiment, the D-shaped beam protrudes from an open side of the channel plate.

[0018] The bridge guardrail with improved protection performance of the utility model has the following beneficial effects:

[0019] The bridge guardrail with improved protection performance includes: a column, an anti-blocking member, a D-shaped beam and a corrugated plate, wherein the side of the column is fixedly connected to the corrugated plate via the anti-blocking member; and the side of the column is fixedly connected to the D-shaped beam above the corrugated plate.

[0020] The invention solves the problem that the bridge guardrail structure of the prior art is single and cannot meet the requirement of providing different buffering and protection performance under various collision force conditions.

[0021] The bridge guardrail with improved protection performance uses corrugated plates for bridge guardrails, which makes the transition connection with the corrugated guardrails in the roadbed section more convenient and safer. The D-beam has better buffering performance, reduces the damage to passengers caused by collisions, and has a streamlined design with less wind resistance. The anti-blocking parts improve the buffering performance of small vehicles. The corrugated plates are universal and mature, and the guardrail uses less steel overall, has high safety, is easy to process, and is convenient to construct. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0023] Figure 1 A front view of a bridge guardrail with improved protection performance according to an embodiment of the present disclosure;

[0024] Figure 2 A side view of a bridge guardrail with improved protection performance according to an embodiment of the present disclosure;

[0025] Figure 3 A schematic structural diagram of an anti-blocking member of a bridge guardrail with improved protection performance according to an embodiment of the present disclosure;

[0026] Figure 4 The present invention is a schematic structural diagram of a connecting frame of a bridge guardrail for improving protective performance according to an embodiment of the present invention.

[0027]

Main component symbol description

[0028] 1. Column;

[0029] 2. Anti-blocking parts;

[0030] 21. Bending plate;

[0031] 211, U-shaped plate; 212, extended plate;

[0032] 22. Anti-blocking block;

[0033] 221, cavity structure; 222, mesh structure;

[0034] 3. D-beam;

[0035] 4. Corrugated board;

[0036] 5. Connecting frame;

[0037] 51, horizontal board; 52, vertical board; 53, groove board;

[0038] 6. Connectors. DETAILED DESCRIPTION

[0039] The bridge guardrail with improved protection performance of the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments of the present invention.

[0040] It should be noted that, in the absence of conflict, the embodiments and features in the embodiments of the present application can be combined with each other. The present invention will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0041] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the present application. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "comprise" and / or "include" are used in this specification, it indicates the presence of features, steps, operations, devices, components and / or combinations thereof.

[0042] It should be noted that the terms "first", "second", etc. in the specification and claims of the present application and the above-mentioned drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence. It should be understood that the data used in this way can be interchangeable where appropriate, so that the embodiments of the present application described herein can be implemented in an order other than those illustrated or described herein, for example. In addition, the terms "including" and "having" and any of their variations are intended to cover non-exclusive inclusions, for example, a process, method, system, product or device that includes a series of steps or units is not necessarily limited to those steps or units that are clearly listed, but may include other steps or units that are not clearly listed or inherent to these processes, methods, products or devices.

[0043] For ease of description, spatially relative terms such as "above", "above", "on the upper surface of", "above", etc. may be used here to describe the spatial positional relationship between a device or feature and other devices or features as shown in the figure. It should be understood that spatially relative terms are intended to include different orientations of the device in use or operation in addition to the orientation described in the figure. For example, if the device in the accompanying drawings is inverted, the device described as "above other devices or structures" or "above other devices or structures" will be positioned as "below other devices or structures" or "below other devices or structures". Thus, the exemplary term "above" can include both "above" and "below". The device can also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatially relative descriptions used here are interpreted accordingly.

[0044] like Figure 1 , Figure 2 , Figure 3 and Figure 4 As shown, the bridge guardrail with improved protection performance includes: a column 1 for connecting and fixing with the bridge, an anti-blocking member 2 that can be deformed to provide anti-blocking and buffering performance, a D-shaped beam 3 for improving the protection effect, and a corrugated plate 4 that can provide protection against lower collision objects. In order to facilitate the connection of the corrugated plate 4, the buffering effect of the corrugated plate 4 can be increased. The side of the column 1 is fixedly connected to the corrugated plate 4 through the anti-blocking member 2. In order to further ensure the strength of the entire bridge guardrail. At the position above the corrugated plate 4, the side of the column 1 is fixedly connected to the D-shaped beam 3.

[0045] The corrugated plate 4 is applied to the bridge guardrail, which is consistent with the line shape and section of the roadbed guardrail, and the transition connection is more convenient and safer. The upper part adopts the crossbeam structure of the innovative D-beam 3, which has better buffering performance, reduces the damage to passengers caused by collision, and has a streamlined design with less wind resistance. The back of the corrugated plate 4 is provided with an anti-blocking member 2 to improve the buffering performance for small vehicles. The corrugated plate is universal and mature, the overall steel consumption of the guardrail is small, the safety is high, the processing is simple, and the construction is convenient.

[0046] In order to further facilitate the connection with the corrugated plate 4 and improve the anti-blocking effect, different anti-blocking blocks 22 can be selected according to different use environments to meet the realization of different anti-blocking effects. The anti-blocking member 2 includes: a bending plate 21 with a connection and fixing function and an anti-blocking block 22 that mainly provides an anti-blocking effect. The two sides of the bending plate 21 are fixedly connected to the corrugated plate 4 and the column 1 respectively, and the anti-blocking block 22 is arranged between the middle of the bending plate 21 and the corrugated plate 4. The anti-blocking block 22 that provides anti-blocking performance is arranged between the column and the corrugated plate 4, which can ensure sufficient supporting force of the anti-blocking block 22 and improve the protective performance.

[0047] In order to facilitate the connection with the column 1 and to conveniently provide an installation cavity position for the anti-obstruction block 22, it can also be conveniently operated and fixedly connected with the corrugated plate 4 through the extended structure. The bent plate 21 includes: a U-shaped plate 211 that is fixedly connected to the column and provides a connection cavity for the anti-obstruction block 22, and an extended plate 212 that is fixedly connected to the corrugated plate 4. The ends of the two side walls of the U-shaped plate 211 are integrally formed to connect the extended plate 212, and the structure formed by folding can meet the structural requirements while ensuring strength. The extended plate 212 is fixedly connected to the corrugated plate 4, and the extended structure can provide sufficient connection space for the connecting bolts between the extended plate 212 and the corrugated plate 4. The middle part of the U-shaped plate 211 is fixedly connected to the anti-obstruction block 22, and the anti-obstruction block 22 is arranged inside to ensure the flatness of the entire bridge guardrail. The other side of the U-shaped plate 211 is fixedly connected to the column 1.

[0048] In order to improve the deformation buffering performance of the corrugated plate 4 without using the anti-blocking block 22 to provide protection in the initial state, it is ensured that the buffering performance can be achieved under a relatively small impact force. One side of the anti-blocking block 22 is fixedly connected to the U-shaped plate 211, and the other side of the anti-blocking block 22 is flush with the extended plate 212 or lower than the surface where the extended plate 212 is located. When the anti-blocking block 22 is not in contact with the corrugated plate 4 for support, in the initial state, only the corrugated plate is used for buffering support, and the anti-blocking block can only meet the support function when it is deformed to contact the anti-blocking block 22.

[0049] In order to provide sufficient deformation space for the anti-blocking block 22 and to provide sufficient supporting force, the middle of the anti-blocking block 22 is a cavity structure 221 .

[0050] In order to improve the protective performance of the anti-blocking block 22, especially when a greater anti-blocking effect is required in some occasions, the anti-blocking effect of the anti-blocking block 22 can be improved. The bottom of the anti-blocking block 22 is sealed with a mesh structure 222, and the cavity structure 221 is filled with a deformable buffer material (filled with foamed aluminum). By simply filling different deformable buffer materials in the cavity structure 221, different buffering performance requirements can be achieved.

[0051] In order to facilitate the connection between the D-shaped beam 3 and the column 1 , the D-shaped beam 3 and the column 1 are fixedly connected via a connecting frame 5 .

[0052] In order to facilitate the coordination with the structure of the column 1 and stably fix the D-shaped beam 3, the connecting frame 5 includes: a horizontal plate 51 fixedly connected to the column 1, a vertical plate 52 vertically arranged to connect the groove plate 53, and a groove plate 53 conveniently connected to the D-shaped beam. The horizontal plate 51 is integrally formed on one side of the upper end of the vertical plate 52, and the other side of the vertical plate 52 is fixedly connected to the groove plate 53. The groove plate 53 is fixedly connected to the D-shaped beam 3, and the horizontal plate 51 is fixedly connected to the upper end of the column 1. The horizontal plate 51 is covered on the upper end of the column 1, which can facilitate the installer to use tools to fix the plate on the upper end of the column 1.

[0053] In order to ensure the connection of multiple D-shaped beams 3, usually two D-shaped beams 3 are provided to meet the protection effect and ensure sufficient wind resistance reduction. At least two slot plates 53 are provided in parallel. In order to facilitate the connection between the slot plates 53 and the D-shaped beams. Connection holes are provided on the upper and lower sides of the slot plates 53, and through holes are provided through the D-shaped beams 3. Connectors 6 are provided through the connection holes and the through holes. Preferably, the connectors 6 are bolts.

[0054] In order to ensure the deformation buffering support effect of the D-shaped beam 3 and to ensure that the D-shaped beam 3 itself deforms to meet the buffering performance, the D-shaped beam 3 protrudes from the opening side of the slot plate 53, so that when a collision occurs, the D-shaped beam 3 is the first to provide buffering support to prevent the end of the slot plate 53 from affecting the buffering performance.

[0055] The above description is only a preferred embodiment of the present invention and is not intended to limit the protection scope of the present invention.

Claims

1. A bridge guardrail with improved protection performance, comprising: The column (1) is characterized in that it also includes: an anti-blocking member (2), a D-shaped beam (3) and a corrugated plate (4), and the side of the column (1) is fixedly connected to the corrugated plate (4) through the anti-blocking member (2); at a position above the corrugated plate (4), the side of the column (1) is fixedly connected to the D-shaped beam (3).

2. The bridge guardrail with improved protection performance according to claim 1, characterized in that: The anti-obstruction member (2) comprises: a bending plate (21) and an anti-obstruction block (22); the two sides of the bending plate (21) are fixedly connected to the corrugated plate (4) and the column (1) respectively; and the anti-obstruction block (22) is arranged between the middle of the bending plate (21) and the corrugated plate (4).

3. The bridge guardrail with improved protection performance according to claim 2 is characterized in that: The bent plate (21) comprises: a U-shaped plate (211) and a protruding plate (212); the end portions of the two side walls of the U-shaped plate (211) are integrally connected to the protruding plate (212); the protruding plate (212) and the corrugated plate (4) are fixedly connected; the middle portion of the U-shaped plate (211) is fixedly connected to the anti-obstruction block (22); and the other side of the U-shaped plate (211) is fixedly connected to the column (1).

4. The bridge guardrail with improved protection performance according to claim 3 is characterized in that: One side of the anti-blocking block (22) is fixedly connected to the U-shaped plate (211), and the other side of the anti-blocking block (22) is flush with the extending plate (212) or lower than the surface where the extending plate (212) is located.

5. The bridge guardrail with improved protection performance according to claim 4 is characterized in that: The middle part of the anti-blocking block (22) is a cavity structure (221).

6. The bridge guardrail with improved protection performance according to claim 5, characterized in that: The bottom of the anti-blocking block (22) is sealed with a mesh structure (222), and the interior of the cavity structure (221) is filled with a deformable buffer material.

7. The bridge guardrail with improved protection performance according to any one of claims 1 to 6, characterized in that: The D-shaped beam (3) and the column (1) are fixedly connected via a connecting frame (5).

8. The bridge guardrail with improved protection performance according to claim 7, characterized in that: The connecting frame (5) comprises: a transverse plate (51), a vertical plate (52) and a slot plate (53); the transverse plate (51) is integrally formed on one side of the upper end of the vertical plate (52); the other side of the vertical plate (52) is fixedly connected to the slot plate (53); the slot plate (53) is fixedly connected to the D-shaped beam (3); and the transverse plate (51) is fixedly connected to the upper end of the column (1).

9. The bridge guardrail with improved protection performance according to claim 8, characterized in that: At least two slot plates (53) are arranged in parallel, connection holes are provided through the upper and lower sides of the slot plates (53), a through hole is provided through the D-shaped beam (3), and a connecting piece (6) is provided through the connection hole and the through hole for connection.

10. The bridge guardrail with improved protection performance according to claim 8, characterized in that: The D-shaped beam (3) protrudes from one side of the opening of the slot plate (53).

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