CN216891971U

CN216891971U - Guardrail for urban bridge

Info

Publication number: CN216891971U
Application number: CN202123159750.8U
Authority: CN
Inventors: 刘津杰; 董鹏; 朱信群; 王献雨
Original assignee: Tianjin Chengjian University
Current assignee: Tianjin Chengjian University
Priority date: 2021-12-15
Filing date: 2021-12-15
Publication date: 2022-07-05
Anticipated expiration: 2031-12-15

Abstract

The utility model relates to a guardrail for an urban bridge, which comprises a front support column (1) and a rear support column (2), and is characterized in that: the front pillar (1) and the rear pillar (2) are obliquely fixed and are in a herringbone shape, and the top of the front pillar (1) is fixedly connected with the upper part of the rear pillar (2); at least two front cross beams (8) are arranged between the front row of pillars (1), a plurality of guardrail frames (3) are distributed between the front cross beams (8), a rubber cylinder (4) is arranged outside each guardrail frame (3), a compression spring (9) is arranged at the joint of each guardrail frame (3) and the front cross beam (8), one end of each compression spring (9) is fixedly connected with the corresponding guardrail frame (3), and the other end of each compression spring is fixedly connected with the corresponding front cross beam (8); a main cross beam (7) and at least one rear cross beam (5) are fixed between the rear pillars (2), and the main cross beam (7) is located above the rear cross beams (5). The guardrail increases flexibility, can greatly weaken energy generated during automobile collision, can ensure less material consumption under the condition of equivalent strength, and plays a role in economy and environmental protection.

Description

Guardrail for urban bridge

Technical Field

The utility model relates to a bridge safety guardrail.

Background

Bridge railing is a safety device installed on bridge for protecting pedestrian and vehicle, the safety device has the functions of preventing vehicle from rushing out of bridge and preventing pedestrian from falling, the existing guardrail is usually a common single rigid guardrail, if the strength of guardrail is not enough, then the vehicle is not enough after striking the guardrail, the vehicle rushes out of bridge easily, if the strength of guardrail is too large, then the vehicle is struck to the guardrail after owing to lack certain buffering, the vehicle is damaged because huge momentum produced by striking causes the vehicle easily, and then the life safety of driver is influenced, and simultaneously, the existing guardrail can not effectively buffer self, thereby the service life is also reduced. In addition, the existing bridge is easy to have accidents at night or under the condition of no street lamp because of no independent lighting facility.

SUMMERY OF THE UTILITY MODEL

Aiming at the existing problems, the utility model provides a safety guardrail suitable for an urban bridge. The novel bridge guardrail adopts a front layer and a rear layer, and the front layer and the rear layer of guardrails form a herringbone structure, and has better stability and good anti-collision performance compared with the traditional single-layer guardrail in structure. The technical scheme is as follows:

the utility model provides a guardrail for city bridge, includes front support 1 and back pillar 2, characterized by: the front pillar 1 and the rear pillar 2 are obliquely fixed and are in a herringbone shape, and the top of the front pillar 1 is fixedly connected with the upper part of the rear pillar 2; at least two front cross beams 8 are arranged between the front row of pillars 1, a plurality of guardrail frames 3 are distributed between the front cross beams 8, a rubber cylinder 4 is arranged outside each guardrail frame 3, a compression spring 9 is arranged at the joint of the guardrail frames 3 and the front cross beams 8, one end of the compression spring 9 is fixedly connected with the guardrail frames 3, and the other end of the compression spring is fixedly connected with the front cross beams 8; a main beam 7 and at least one rear beam 5 are fixed between the rear pillars 2, and the main beam 7 is positioned above the rear beams 5.

Further: the guardrail frame 3 is in an arc structure.

Further: the front and

rear pillars

1 and 2 are fixed in the concrete of the bridge by a front base 11 and a rear base 2, respectively.

Further: a plurality of compression springs 9 are connected between the guardrail frame 3 and the front cross beam 8.

Further: a clamping groove is formed in the main beam 7, the LED lamp 6 is fixed in the clamping groove, and a glass plate 13 used for protecting the LED lamp 6 covers the front of the clamping groove.

Further: both ends of the main cross member 7 are connected to the rear pillars 2 by clips 10, respectively.

Further: at least one rear cross beam 5 is further fixed between the rear pillars 2, and the rear cross beam 5 is located below the main cross beam 7.

Further, the method comprises the following steps: the rear cross beam 5 and the main cross beam 7 are both made of steel structures.

Further: the guardrail frame 3 is of a steel structure.

Further: the front strut 1 and the rear strut 2 are both steel structures.

Compared with the prior art, the utility model has the beneficial effects that:

the front-row guardrail frame of the bridge guardrail adopts an arc-shaped structure protruding towards the inside of a bridge and is wrapped with a rubber cylinder with a buffering function, so that the anti-collision performance of the guardrail is greatly improved from the structure and the material, the bearing capacity of the guardrail is increased, a compression spring is arranged at the joint of the front-row guardrail frame and a front cross beam, three surfaces at the tail end of the guardrail frame are all arranged, the energy generated by automobile collision can be comprehensively absorbed, the safety performance of the guardrail is greatly improved, the cross section of a main cross beam is of an oval structure, the pedestrian with a view can feel better, meanwhile, the function of preventing the pedestrian from falling is achieved, a strip-shaped LED lamp is further arranged inside the main cross beam, the night illumination can be achieved, and the visual experience of a driver is more visual. The guardrail cross section is chevron shape structure, compares in traditional single vertical structure, can guarantee the holistic stability of guardrail better.

Drawings

FIG. 1 is a perspective view of an embodiment;

FIG. 2 is a front view of the embodiment;

FIG. 3 is a side view of the embodiment;

FIG. 4 is a side sectional view of the guardrail frame;

fig. 5 is a top sectional view of the junction of the guardrail frame and the front cross member.

Reference numerals are as follows:

1. front pillar, 2 rear pillar, 3 guardrail frame, 4 rubber tube,

5. A rear beam, 6 LED lamps, 7 main beams, 8 front beams,

9. A compression spring, 10 a hoop, 11 a front substrate, 12 a rear substrate,

13. Glass plate

Detailed Description

First, it should be noted that the specific structures, features, advantages, etc. of the present invention will be specifically described below by way of example, but all the descriptions are for illustrative purposes only and should not be construed as limiting the present invention in any way. Furthermore, any single feature described or implicit in any embodiment or any single feature shown or implicit in any drawing may still be combined or subtracted between any of the features (or equivalents thereof) to obtain still further embodiments of the utility model that may not be directly mentioned herein. In addition, for the sake of simplicity, the same or similar features may be indicated in only one place in the same drawing.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "lateral", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings or orientations or positional relationships that are conventionally placed when the products of the present invention are used, and are used only for convenience of describing and simplifying the present invention, and do not indicate or imply that the devices or elements indicated must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention.

It should be noted that the embodiments and features of the embodiments in the present application may be combined with each other without conflict.

The utility model is described in detail below with reference to the figures and examples.

The utility model discloses a guardrail for an urban bridge, which is a herringbone bridge safety guardrail and consists of a front row of guardrails and a rear row of guardrails. Wherein the front guard rail is in a vertical arch structure, and the rear guard rail is in a transverse straight cylinder structure. The arch structure of the front row of guard rails has better bearing capacity than the vertical guard rails, and each guard rail frame is wrapped with a rubber tube, so that a good buffering effect can be achieved, and the transverse guard rails of the rear row can achieve a good impact dispersing effect. And a compression spring is arranged at the joint of the front guardrail frame and the front cross beam, so that a large amount of momentum generated by automobile collision can be absorbed. The beam is provided with the LED lamp which can be used for night illumination and has an attractive effect. Fig. 1 to 5 show an embodiment of the present invention.

As shown in fig. 1 and 2, the safety barrier comprises a front pillar 1 and a rear pillar 2, wherein the bottoms of the front pillar 1 and the rear pillar 2 are respectively provided with a front base 11 and a rear base 12 which are connected with a bridge deck, two front cross beams 8 are connected between the front pillars 1, a barrier frame 3 for buffering impact is connected between the front cross beams 8, a rubber tube 4 for enhancing the buffering effect is sleeved on the barrier frame, a rear cross beam 5 is connected between the rear pillars and can play a role in dispersing impact, a main cross beam 7 is fixed on the rear pillar 2 through a hoop 10, and a strip-shaped LED lamp 6 is arranged in the main cross beam 7.

As shown in fig. 3, a herringbone structure is formed between the front pillar 1 and the rear pillar 2, the rear pillar 2 is provided with a main beam 7, a clamping groove (not shown) is arranged in the main beam 7, the strip-shaped LED lamp 6 is mounted, and the glass plate 13 covers the clamping groove of the main beam 7 to protect the LED lamp 6.

As shown in fig. 4, the guardrail frame 3 is an arc-shaped structure, the rubber tube 4 for buffering is sleeved outside the guardrail frame, the clamping groove (not shown in the figure) is arranged inside the front cross beam 8, the guardrail frame 3 and the front cross beam 8 are connected in the clamping groove through the compression spring 9, and the compression spring is fixed between the front cross beam 8 and the guardrail frame 3 in a welding manner.

As shown in fig. 5, for the connection condition with the guardrail frame 3 in the clamping groove in the front cross beam 8, one end of the compression spring 9 is welded on the inner wall of the clamping groove, the other end is welded at one end of the guardrail frame 3, the position of the guardrail frame 3 is fixed by applying the mechanism, the compression spring 9 is arranged on three sides of the end point of the guardrail frame 3, and the effect of buffering can be played in all directions.

In particular, when in use, the front base 11 and the rear base 12 are fixed in the concrete of the bridge, in order to improve the strength and stability of the whole guardrail, the front cross beam 8 and the rear cross beam 5 are respectively fixed between the pillars in a welding mode, the guardrail frame 3 is connected with the front cross beam 8 through the compression spring 9, the compression spring 9 is connected with the front cross beam 8 and the guardrail frame 3 through the welding mode, the compression spring adopts a multidirectional arrangement mode to absorb energy generated by automobile collision in an all-round mode, the periphery of the guardrail frame 3 is wrapped with the rubber tube 4 with strong resilience performance to enhance the flexibility of the guardrail, the main cross beam 7 is fixed on the rear pillars 2 through the hoops, the cross section of the main cross beam 7 is of an oval structure, the LED street lamp has the advantages that the ornamental pedestrians can feel comfortable and are prevented from falling, the LED lamps 6 are mounted in the main cross beam 7, the night illumination can be realized, and a route can be indicated for a driver.

The present invention has been described in detail with reference to the above examples, but the description is only for the preferred examples of the present invention and should not be construed as limiting the scope of the present invention. All equivalent changes and modifications made within the scope of the present invention shall fall within the scope of the present invention.

Claims

1. The utility model provides a guardrail for city bridge, includes front support post (1) and rear support post (2), characterized by: the front pillar (1) and the rear pillar (2) are obliquely fixed and are in a herringbone shape, and the top of the front pillar (1) is fixedly connected with the upper part of the rear pillar (2); at least two front cross beams (8) are arranged between the front pillars (1), a plurality of guardrail frames (3) are distributed between the front cross beams (8), a rubber cylinder (4) is arranged outside each guardrail frame (3), a compression spring (9) is arranged at the joint of each guardrail frame (3) and the front cross beam (8), one end of each compression spring (9) is fixedly connected with the corresponding guardrail frame (3), and the other end of each compression spring is fixedly connected with the corresponding front cross beam (8); a main cross beam (7) and at least one rear cross beam (5) are fixed between the rear pillars (2), and the main cross beam (7) is located above the rear cross beam (5).

2. The guardrail for the urban bridge according to claim 1, wherein: the guardrail frame (3) is in an arc structure.

3. The guardrail for the urban bridge according to claim 1, wherein: the front support column (1) and the rear support column (2) are fixed in the concrete of the bridge through a front base (11) and a rear base (12) respectively.

4. The guardrail for the urban bridge according to claim 1, wherein: a plurality of compression springs (9) are connected between the guardrail frame (3) and the front cross beam (8).

5. The guardrail for the urban bridge according to claim 1, wherein: a clamping groove is formed in the main cross beam (7), the LED lamp (6) is fixed in the clamping groove, and a glass plate (13) used for protecting the LED lamp (6) covers the front of the clamping groove.

6. The guardrail for the urban bridge according to claim 1, wherein: both ends of the main beam (7) are connected to the rear pillars (2) through clips (10), respectively.

7. The guardrail for the urban bridge according to claim 1, wherein: at least one rear cross beam (5) is further fixed between the rear pillars (2), and the rear cross beam (5) is located below the main cross beam (7).

8. The guardrail for the urban bridge according to claim 7, wherein: the rear cross beam (5) and the main cross beam (7) are both made of steel.

9. The guardrail for the urban bridge according to claim 1, wherein: the guardrail frame (3) is of a steel structure.

10. The guardrail for the urban bridge according to claim 1, wherein: the front support column (1) and the rear support column (2) are both steel structures.