CN219315501U

CN219315501U - SA-level bridge guardrail

Info

Publication number: CN219315501U
Application number: CN202320364670.6U
Authority: CN
Inventors: 顾佳敏; 齐文博; 郭琼琼
Original assignee: Zhangjiagang Chengxiang Transportation Technology Co ltd
Current assignee: Zhangjiagang Chengxiang Transportation Technology Co ltd
Priority date: 2023-03-02
Filing date: 2023-03-02
Publication date: 2023-07-07
Anticipated expiration: 2033-03-02

Abstract

The application discloses a SA-level bridge guardrail, which comprises upright posts, cross beams and flanges; the flanges are arranged on a road surface at certain intervals, the upright posts are vertically arranged on the concrete base, and a first beam clamping plate group, a second beam clamping plate group and a third beam clamping plate group are arranged on two sides of the upright posts from top to bottom at intervals; the beam is arranged on the first beam clamping plate group, the second beam clamping plate group and the third beam clamping plate group. The SA-level bridge guardrail is simple in structure, reasonable in design and reliable in safety performance, and meets the SA-level protection level requirement.

Description

SA-level bridge guardrail

Technical Field

The application relates to an SA level bridge guardrail.

Background

Along with the development of transportation industry, the increase of traffic flow and the enlargement of vehicles, the road traffic pressure is gradually increased, and the safety protection requirement of the road on the guardrails is correspondingly improved. The highway guardrail is the last line of defense of accident vehicles on the highway, and the reasonable design of the highway guardrail can effectively reduce the accident injury degree and save the lives of passengers. The bridge section on the highway is in the high position, once the accident that the vehicle overtakes or passes through the bridge guardrail occurs, the serious accident that the vehicle is destroyed and the person is killed is extremely easy to cause.

In order to prevent the uncontrolled vehicles from going out of the bridge, guardrails are installed on the bridge, and the existing guardrails generally consist of a bracket and a plurality of anti-collision upright posts vertically installed on the bracket. The existing anti-collision upright posts are simple and easy, the speed of the road is high, and the anti-collision upright posts are poor in performance and high in damage rate, have small effects on protection and are easy to cause serious safety accidents.

Disclosure of Invention

The utility model aims to provide an SA-grade bridge guardrail, which overcomes the defects in the prior art.

In order to achieve the above purpose, the present utility model provides the following technical solutions: a SA-level bridge guardrail comprises upright posts, cross beams and flanges; the flange is arranged on a road surface at certain intervals, the upright posts are vertically arranged on the flange, and a first beam clamping plate group, a second beam clamping plate group and a third beam clamping plate group are arranged at the two sides of the upright posts from top to bottom at intervals; the beam is arranged on the first beam clamping plate group, the second beam clamping plate group and the third beam clamping plate group.

Preferably, the cross section of the upright post is regular octagon, and the area of the cross section of the upright post is gradually increased from top to bottom.

Preferably, the joint of the upright post and the flange is provided with a reinforcing rib.

Preferably, the height of the concrete base is 170mm, the height of the first beam clamping plate group from the bridge deck is 1200mm, the height of the second beam clamping plate group from the bridge deck is 745mm, and the height of the third beam clamping plate group from the bridge deck is 355mm.

Preferably, the cross beam is a circular steel tube, the diameter of the cross beam arranged on the first cross beam clamping plate group and the third cross beam clamping plate group is 80-90mm, the thickness of the cross beam is 3-5mm, and the diameter of the cross beam arranged on the second cross beam clamping plate group is 110-120mm, and the thickness of the cross beam is 4-8mm.

Preferably, the flanges are arranged on the road surface at intervals of 2000 mm.

Preferably, the whole is made of Q355 steel.

Preferably, the thickness of the upright post is 5-8mm

Compared with the prior art, the SA-level bridge guardrail has the advantages of simple structure, reasonable design and reliable safety performance, and meets the SA-level protection level requirement.

Drawings

In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings that are required to be used in the embodiments or the description of the prior art will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments described in the present application, and other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

FIG. 1 is an elevation view of an SA grade bridge guardrail according to one embodiment of the utility model;

FIG. 2 is a cross-sectional view of a SA grade bridge guardrail according to one embodiment of the utility model;

FIG. 3 is a schematic diagram of a column structure of an SA-stage bridge guardrail according to an embodiment of the utility model;

fig. 4 is a plan view of an SA stage bridge railing according to an embodiment of the present utility model.

Wherein: 1. road surface; 2. a flange; 3. a column; 301. a first beam clamping plate set; 302. a second beam clamping plate set; 303. a third beam clamping plate set; 304. reinforcing ribs; 4. and a cross beam.

Detailed Description

The following detailed description of the technical solutions according to the embodiments of the present utility model will be given with reference to the accompanying drawings in the embodiments of the present utility model, and it is apparent that the described embodiments are only some embodiments of the present utility model, not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

1-2, an SA-stage bridge guardrail of the present embodiment is composed of four parts: the flange 2, the upright post 3 and the cross beam 4 are made of Q355 steel. The flanges 2 are arranged on the road surface 1 at intervals of 2000mm, bolt holes are formed in the flanges 2, and the flanges 2 are connected with the road surface through bolts; the upright 3 is welded to the flange 2 vertically. The thickness of the upright post is 5-8mm.

The cross section of the upright post 3 is in positive eight deformation, and the cross section area of the upright post 3 gradually becomes smaller from bottom to top, as shown in fig. 2 and 3. The two sides of the upright post 3 are sequentially provided with a first beam clamping plate group 301, a second beam clamping plate group 302 and a third beam clamping plate group 303 from top to bottom, wherein the height of the first beam clamping plate group 301 from the bridge deck is 1200mm, the height of the second beam clamping plate group 302 from the bridge deck is 745mm, and the height of the third beam clamping plate group 303 from the bridge deck is 350mm. The beam clamping plate group is provided with a bolt through hole, and the beam 4 is fixedly arranged on the beam clamping plate group through the bolt through hole.

In order to enhance the strength of the upright column, as shown in fig. 3, a reinforcing rib 304 is arranged at the joint of the upright column 3 and the flange 2, and the reinforcing rib 304 is welded around the upright column 3 and is welded and fixed with the flange 2.

Referring to fig. 1-2, the cross beam 4 is a circular steel pipe, and the diameter of the cross beam 4 mounted on the first cross beam clamping plate set 301 and the third cross beam clamping plate set 303 is 80-90mm, and the thickness is 3-5mm; the beam diameter mounted on the second beam clamp plate 302 set is 110-120mm,4-8mm.

It is noted that relational terms such as first and second, and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one … …" does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises an element.

The foregoing is merely exemplary of the application and it should be noted that modifications and adaptations to those skilled in the art may be made without departing from the principles of the application and are intended to be comprehended within the scope of the application.

Claims

1. An SA level bridge guardrail, its characterized in that: comprises a column, a beam and a flange; the flange is arranged on a road surface at certain intervals, the upright posts are vertically arranged on the flange, and a first beam clamping plate group, a second beam clamping plate group and a third beam clamping plate group are arranged at the two sides of the upright posts from top to bottom at intervals; the beam is arranged on the first beam clamping plate group, the second beam clamping plate group and the third beam clamping plate group.

2. The SA grade bridge railing of claim 1, wherein: the cross section of the upright post is regular octagon, and the area of the cross section of the upright post is gradually enlarged from top to bottom.

3. The SA grade bridge railing of claim 1, wherein: and the joint of the upright post and the flange is provided with a reinforcing rib.

4. The SA grade bridge railing of claim 1, wherein: the concrete base height is 170mm, the first beam clamping plate set is 1200mm away from the bridge deck, the second beam clamping plate set is 745mm away from the bridge deck, and the third beam clamping plate set is 355mm away from the bridge deck.

5. The SA grade bridge railing of claim 1, wherein: the cross beam is a round steel pipe, the diameter of the cross beam arranged on the first cross beam clamping plate group and the third cross beam clamping plate group is 80-90mm, the thickness of the cross beam is 3-5mm, and the diameter of the cross beam arranged on the second cross beam clamping plate group is 110-120mm, and the thickness of the cross beam is 4-8mm.

6. The SA grade bridge railing of claim 1, wherein: the flanges are arranged on the road surface at intervals of 2000 mm.

7. The SA grade bridge railing of claim 1, wherein: the whole is made of Q355 steel.

8. The SA grade bridge railing of claim 1, wherein: the thickness of the upright post is 5-8mm.