CN220013376U

CN220013376U - Bridge guardrail structure

Info

Publication number: CN220013376U
Application number: CN202321482129.1U
Authority: CN
Inventors: 魏然; 顾士苏; 孙建军; 扈玉坤; 靳博路
Original assignee: Jinan Haihe Construction Project Management Co ltd
Current assignee: Jinan Haihe Construction Project Management Co ltd
Priority date: 2023-06-12
Filing date: 2023-06-12
Publication date: 2023-11-14
Anticipated expiration: 2033-06-12

Abstract

The utility model relates to the technical field of bridge guardrails, in particular to a bridge guardrail structure, which comprises a mounting table with stepped edges at two sides of a bridge span main body, wherein a vertical face and a horizontal face of the mounting table are respectively prefabricated with a horizontal fixing hole and a vertical fixing hole; the mounting platform is provided with an L-shaped base plate matched with the mounting platform, the base plate is provided with a stand column which is integrally fixed with the vertical face and the horizontal face of the base plate, the stand column is provided with a mounting hole for mounting a cross beam, and one side of the stand column, which is close to the center of the bridge main body, is fixedly provided with a plurality of rows of anti-collision buffer tubes; the anti-collision buffer tube comprises a connecting plate, an arc-shaped deformation plate and a free end plate, wherein the connecting plate is fixed on the upright post through a fixing piece. According to the utility model, the anti-collision buffer tube provides a primary buffering function for the upright post, so that the upright post has buffering and strength; the beam provides a secondary buffer function, so that the bridge guardrail can better prevent the uncontrolled vehicle from protruding out of the bridge, and the occurrence of the condition of vehicle damage and human death is reduced.

Description

Bridge guardrail structure

Technical Field

The utility model relates to the technical field of bridge guardrails, in particular to a bridge guardrail structure.

Background

The information disclosed in the background of the utility model is only for enhancement of understanding of the general background of the utility model and is not necessarily to be taken as an admission or any form of suggestion that this information forms the prior art already known to a person of ordinary skill in the art.

The bridge guardrail is a guardrail arranged on a bridge. The purpose is to prevent the out-of-control vehicle from going out of the bridge, and has the function of making the vehicle unable to break through, run down and cross the bridge.

Patent CN218479043U among the prior art discloses a bridge guardrail, and its technical scheme includes buffering buffer stop, bed plate, first mounting panel and second mounting panel, two the bracing piece is all installed to the upper end of bed plate, and the upper end welding of bracing piece has the guardrail pole, first mounting panel and second mounting panel are all installed between the guardrail pole, install the connecting rod between first mounting panel and the second mounting panel, all install buffer spring on first mounting panel and the second mounting panel, buffer spring on first mounting panel and the second mounting panel all is provided with four and is even equidistance and distributes, is provided with flexible buffer rod in the buffer spring, the end department at buffer spring is installed to the buffering buffer stop, and the buffering buffer stop is the arc setting, first connecting plate and second connecting plate are installed to the rear end face of buffering buffer stop. The bridge guardrail has the advantages of good buffering anti-collision performance and good safety protection effect on vehicles and personnel on the vehicles. However, the structure is complex, the cost is high, the situation of breaking through the guard rail in life still occurs, the upright post strength of the bridge guard rail is not high, the problem that the guard rail prevents the out-of-control vehicle from bursting out of the bridge cannot be fully considered, and potential safety hazards exist.

Disclosure of Invention

Aiming at the problems in the prior art, the utility model aims to provide a bridge guardrail structure.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

the bridge guardrail structure comprises mounting tables which are arranged in a step shape at the edges of two sides of a bridge span main body, wherein horizontal fixing holes and vertical fixing holes are respectively prefabricated on the vertical face and the horizontal face of the mounting tables; the mounting platform is provided with an L-shaped base plate matched with the mounting platform, the base plate is provided with a stand column which is integrally fixed with the vertical face and the horizontal face of the base plate, the stand column is provided with a mounting hole for mounting a cross beam, and one side of the stand column, which is close to the center of the bridge main body, is fixedly provided with a plurality of rows of anti-collision buffer tubes; the anti-collision buffer tube comprises a connecting plate, an arc-shaped deformation plate and a free end plate, wherein the connecting plate is fixed on the upright post through a fixing piece.

As another preferable technical scheme: the crossbeam is a cylindrical beam and sequentially comprises a protection rod, a buffer layer and a deformation tube from inside to outside.

As another preferable technical scheme: and a buffer core is arranged on the inner side of the cambered surface deformation plate.

As another preferable technical scheme: the anti-collision buffer tube is omega-shaped.

As another preferable technical scheme: the bottom of one side of the upright post, which is close to the center of the bridge span, is arranged as a plane corresponding to the base plate, and the outer side of the upright post is arranged as an arc surface which is gradually enlarged from top to bottom.

As another preferable technical scheme: the buffer layer is a rubber layer or a high polymer foam layer; the buffer core is a rubber column or a polymer foam column.

The beneficial effects are that: according to the utility model, the upright post and the base plate are fixedly connected in the horizontal and vertical two-position direction, so that the connection strength of the upright post and the base plate is higher and more stable; the base plate and the bridge span main body are connected and fixed in the horizontal and vertical two-position-plane directions, so that the fixing strength of the base plate and the upright post is higher and more stable, and the strength of the whole bridge guardrail is higher; the anti-collision buffer tube is fixedly connected through the connecting plate, the cambered surface deformation plate deforms when being impacted by external force, and the deformation quantity is downwards output through the free end plate, so that the deformation is easier, a primary buffering function is provided for the upright column, and the buffering and the strength of the upright column are combined; and the rear cross beam provides a secondary buffering function, so that the bridge guardrail can better prevent out-of-control vehicles from protruding out of the bridge, and meanwhile, better buffering is provided, and the occurrence of the condition of vehicle destruction and human death caused by collision of the vehicles on the guardrail is reduced.

Drawings

FIG. 1 is a schematic overall perspective view of the present utility model;

FIG. 2 is a schematic view of a fixing structure of a column;

FIG. 3 is a schematic structural view of an anti-collision buffer tube;

FIG. 4 is a schematic cross-sectional view of a cross-beam;

in the figure, a bridge span main body 1, an installation table 2, a horizontal plane 21, an upright surface 22, a protective column 3, an upright column 31, an installation hole 311, a base plate 32, an anti-collision buffer tube 4, a connecting plate 41, a cambered deformation plate 42, a buffer core 43, a free end plate 44, a cross beam 5, a deformation tube 51, a buffer layer 52, a protective rod 53, a horizontal fixing hole 6 and a vertical fixing hole 7.

Detailed Description

The utility model will be further described with reference to specific examples and figures.

Fig. 1 to 4 show a bridge guardrail structure, which comprises a mounting table 2 with stepped edges at two sides of a bridge span main body 1, wherein a horizontal fixing hole 6 and a vertical fixing hole 7 are respectively prefabricated on an upright surface 22 and a horizontal surface 21 of the mounting table 2; the mounting table 2 is provided with a protective column 3, the protective column 3 comprises an L-shaped base plate 32 matched with the mounting table 2, the base plate 32 is provided with a column 31 which is integrally fixed with a vertical face 22 and a horizontal plane 21 of the base plate 32, the column 31 is provided with a mounting hole 311 for mounting a cross beam 5, and a plurality of rows of anti-collision buffer tubes 4 are fixed on one side of the column 31, which is close to the center of the bridge main body 1; the anti-collision buffer tube 4 is omega-shaped and comprises a connecting plate 41, an arc-shaped deformation plate 42 and a free end plate 44, wherein the connecting plate 41 is fixed on the upright post 31 through a fixing piece.

According to the bridge guardrail structure, the upright posts 31 and the base plates 32 are fixedly connected in the horizontal and vertical two-position-plane directions, so that the connection strength of the upright posts 31 and the base plates 32 is higher and more stable; the base plate 32 and the bridge span main body 1 are connected and fixed in the horizontal and vertical two-position-plane directions, so that the fixing strength of the base plate 32 and the upright posts 31 is higher and more stable, and the overall bridge guardrail strength is higher; the anti-collision buffer tube 4 is fixedly connected through the connecting plate 41, the cambered surface deformation plate 42 deforms when being impacted by external force, and the deformation quantity is downwards output through the free end plate 44, so that the deformation is easier, and the upright post 31 is provided with a primary buffering function, so that the anti-collision buffer tube has both buffering and strength; and the rear cross beam 5 provides a secondary buffering function, so that the bridge guardrail can better prevent out-of-control vehicles from protruding out of the bridge, and simultaneously provide better buffering, and reduce the occurrence of vehicle damage and human death caused by the collision of the vehicles on the guardrail.

In a preferred further embodiment: referring to fig. 1 and 4, the cross beam 5 is a cylindrical beam, and has a smooth collision surface and high strength; the protective rod 53, the buffer layer 52 and the deformation tube 51 are sequentially arranged from inside to outside, the protective rod 53 is a solid rod, greater strength is provided, the deformation tube 51 can be made of metal or nonmetal materials with higher elasticity and toughness, the buffer layer 52 provides a main buffer effect, and rubber or high-molecular foam materials can be selected, so that the cross beam 5 has buffer capacity and required strength.

In a preferred further embodiment: referring to fig. 3, a buffer core 43 is disposed inside the cambered surface deformation plate 42, where the buffer core 43 is a rubber column or a polymer foam column, and provides buffering for the cambered surface deformation plate 42, so as to further improve the buffering capacity of the anti-collision buffer tube 4.

In a preferred further embodiment: referring to fig. 1 to 3, the bottom of the side of the upright post 31 near the center of the bridge span is provided with a plane corresponding to the base plate 32, so that the connection area between the upright post 31 and the base plate 32 is larger, the connection strength is higher, and the upright post 31 and the base plate 32 can be fixed in a welding or integral forming manner; the stand 31 outside sets up to from last to the cambered surface that progressively enlarges down for stand 31 bottom and bed plate 32's area of connection is bigger, and moreover, the cambered surface post possesses higher intensity, thereby improves the intensity of whole bridge guardrail.

Finally, it should be noted that: the above embodiments are only for illustrating the technical solution of the present utility model, and are not limiting; although the utility model has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit of the utility model.

Claims

1. The utility model provides a bridge guardrail structure which characterized in that: the bridge span comprises mounting tables, wherein the two side edges of a bridge span main body are arranged in a step shape, and a vertical face and a horizontal face of each mounting table are respectively provided with a horizontal fixing hole and a vertical fixing hole in a prefabrication mode; the mounting platform is provided with an L-shaped base plate matched with the mounting platform, the base plate is provided with a stand column which is integrally fixed with the vertical face and the horizontal face of the base plate, the stand column is provided with a mounting hole for mounting a cross beam, and one side of the stand column, which is close to the center of the bridge main body, is fixedly provided with a plurality of rows of anti-collision buffer tubes; the anti-collision buffer tube comprises a connecting plate, an arc-shaped deformation plate and a free end plate, wherein the connecting plate is fixed on the upright post through a fixing piece.

2. The bridge railing structure of claim 1, wherein: the crossbeam is a cylindrical beam and sequentially comprises a protection rod, a buffer layer and a deformation tube from inside to outside.

3. The bridge railing structure of claim 2, wherein: and a buffer core is arranged on the inner side of the cambered surface deformation plate.

4. The bridge railing structure of claim 1, wherein: the anti-collision buffer tube is omega-shaped.

5. The bridge railing structure of claim 1, wherein: the bottom of one side of the upright post, which is close to the center of the bridge span, is arranged as a plane corresponding to the base plate, and the outer side of the upright post is arranged as an arc surface which is gradually enlarged from top to bottom.

6. A bridge railing structure according to claim 3, characterised in that: the buffer layer is a rubber layer or a high polymer foam layer; the buffer core is a rubber column or a polymer foam column.