CN221255321U - Crash barrier with secondary heightening function - Google Patents

Abstract

The utility model provides a secondary heightened anti-collision guardrail which is used for heightening and reinforcing an old concrete anti-collision guardrail, and comprises foundation pieces, wherein a plurality of foundation pieces are fixedly arranged on the old concrete anti-collision guardrail at intervals; the heightening part comprises a shell part and a concrete compacting part, and the shell part is fixedly connected with the foundation piece; the concrete compact part is arranged in the shell part, the bottom of the concrete compact part is connected with the old concrete anti-collision guardrail, the concrete compact part further comprises a buffer part, the buffer part is arranged on the heightening part, the foundation part comprises a first steel plate, a second steel plate and opposite-pulling screws, and the first steel plate and the second steel plate are respectively fixedly arranged on the front side and the rear side of the old concrete anti-collision guardrail through a plurality of opposite-pulling screws; the old concrete anti-collision guardrail is heightened and modified, and the problems that the old concrete anti-collision guardrail is difficult to meet the existing anti-collision requirement in terms of height and strength are solved.

Description

Crash barrier with secondary heightening function

Technical Field

The utility model relates to the technical field of road construction, in particular to a secondary heightened anti-collision guardrail.

Background

The concrete anti-collision guardrail is a safety device arranged on two sides of a highway or on a central partition belt, and has the main functions of preventing vehicles from rushing out of a lane and reducing traffic accidents; compared with the common metal guardrail, the concrete anti-collision guardrail has the characteristic of being stronger; the automobile impact protection device can bear larger pressure and impact force, so that the impact of the automobile can be effectively blocked, the automobile is prevented from rushing out of a road, and pedestrians and other facilities along the road are protected.

The concrete anti-collision guardrail is taken as necessary infrastructure in municipal engineering, the old and old concrete anti-collision guardrail is difficult to meet the requirement of the prior anti-collision in terms of height and strength, and the method for heightening and reforming the old and old concrete anti-collision guardrail is an environment-friendly treatment mode for reasonably utilizing resources.

Disclosure of utility model

The utility model aims to provide a secondarily heightened anti-collision guardrail, which heightens and reforms an old concrete anti-collision guardrail, and solves the problems that the old concrete anti-collision guardrail is difficult to meet the existing anti-collision requirement in terms of height and strength.

The embodiment of the utility model is realized by the following technical scheme: the secondary heightened anti-collision guardrail is used for heightening and reinforcing an old concrete anti-collision guardrail and comprises foundation pieces, wherein a plurality of foundation pieces are fixedly arranged on the old concrete anti-collision guardrail at intervals;

The heightening part comprises a shell part and a concrete compacting part, and the shell part is fixedly connected with the foundation piece;

The concrete compact part is arranged in the shell part, and the bottom of the concrete compact part is connected with the old concrete anti-collision guardrail.

Further, the device further comprises a buffer piece, wherein the buffer piece is arranged on the heightening part.

Further, the foundation piece comprises a first steel plate, a second steel plate and opposite-pulling screws, wherein the first steel plate and the second steel plate are respectively fixedly arranged on the front side and the rear side of the old concrete crash barrier through a plurality of opposite-pulling screws.

Further, the shell part is a metal box body with an opening at the bottom, the top of the old concrete anti-collision guardrail extends into the metal box body, and the front side and the rear side of the lower end of the metal box body are fixedly connected with a plurality of first steel plates and second steel plates.

Further, a plurality of pouring holes are formed in the top of the metal box body.

Further, the concrete compact part comprises a new steel reinforcement framework and concrete filler, an old steel reinforcement framework is arranged in the old concrete anti-collision guardrail, and the new steel reinforcement framework is connected with the old steel reinforcement framework.

Further, the buffer piece is a corrugated steel plate guardrail, and the corrugated steel plate guardrail is arranged on the metal box body.

Furthermore, buffer gaps are reserved between the old concrete anti-collision guardrail and the heightening parts, and the buffer gaps are filled with joint filling agents.

The technical scheme of the embodiment of the utility model has at least the following advantages and beneficial effects:

1. The top and the left side face and the right side face of the old concrete anti-collision guardrail are roughened, the top face is particularly required to be chiseled out of the upper end of the original old steel reinforcement framework, the old steel reinforcement framework and the vertical steel reinforcement of the new steel reinforcement framework are welded into a whole, transverse steel reinforcement is bound on the vertical steel reinforcement framework to form the new steel reinforcement framework, the metal box body is covered with the metal box body, after the metal box body is welded with the first steel plate and the second steel plate, the metal box body is filled with concrete filler, meanwhile, the first steel plate and the second steel plate are respectively fixedly arranged on the front side and the rear side of the old concrete anti-collision guardrail through a plurality of opposite-pulling screws, the heightened parts are respectively connected with the new steel reinforcement framework and the old steel reinforcement framework and are poured with concrete filler, the heightened and reinforced on the original foundation, the formed secondarily heightened anti-collision guardrail is high in structural strength, the existing requirements are met, and meanwhile, the materials and the expenses are saved.

2. The buffer piece is arranged on the heightening part, the buffer piece is a wave-shaped steel plate guardrail, the wave-shaped steel plate guardrail is arranged on the metal box body, the wave-shaped steel plate guardrail has good crashworthiness and energy absorption effects, is not easy to crash, and can play a good role in protecting vehicles and drivers and passengers.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings that are needed in the embodiments will be briefly described below, it being understood that the following drawings only illustrate some embodiments of the present utility model and therefore should not be considered as limiting the scope, and other related drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

FIG. 1 is a schematic perspective view of a secondary raised crash barrier according to the present utility model;

FIG. 2 is a schematic cross-sectional view of a secondary raised crash barrier according to the present utility model;

Icon: 1. old concrete crash barrier 11, old steel reinforcement framework, 2, foundation piece, 21, first steel plate, 22, second steel plate, 23, opposite-pull screw rod, 3, increase portion, 31, metal box body, 311, pouring hole, 32, new steel reinforcement framework, 33, concrete filler, 4, wave-shaped steel plate guardrail, 5, gap filler.

Detailed Description

For the purpose of making the objects, technical solutions and advantages of the embodiments of the present utility model more apparent, the technical solutions of the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model, and it is apparent that the described embodiments are some embodiments of the present utility model, but not all embodiments of the present utility model. The components of the embodiments of the present utility model generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.

Thus, the following detailed description of the embodiments of the utility model, as presented in the figures, is not intended to limit the scope of the utility model, as claimed, but is merely representative of selected embodiments of the utility model. 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.

Referring to fig. 1 to 2, the present embodiment provides a secondary heightened crash barrier for heightening and reinforcing an old concrete crash barrier 1, which comprises a base member 2, wherein a plurality of base members 2 are fixedly arranged on the old concrete crash barrier 1 at intervals;

more specifically, the foundation member 2 includes a first steel plate 21, a second steel plate 22 and a pair of pull screws 23, the first steel plate 21 and the second steel plate 22 are respectively fixed on the front and rear sides of the old concrete crash barrier 1 through a plurality of pair of pull screws 23, the first steel plate 21 and the second steel plate 22 are attached to the old concrete crash barrier 1, and the two pair of pull screws 23 are used to fix the two with the old concrete crash barrier 1, and anchoring members such as expansion screws can be used.

It should be noted that when using the anchoring member such as the counter-pulling screw 23 or the expansion bolt, the foundation member 2 needs to be installed after the keyhole is cleared, so as to ensure that the foundation member 2 can be stably connected with the old concrete crash barrier 1, provide a good connection and support foundation for the heightening portion 3, and simultaneously use a plurality of small foundation members 2, so that the use of materials can be saved while the foundation strength is ensured.

The heightening part 3, the heightening part 3 comprises a shell part and a concrete dense part, and the shell part is fixedly connected with the base part 2; the concrete compact part is arranged in the shell part, and the bottom of the concrete compact part is connected with the old concrete anti-collision guardrail 1.

As shown in fig. 1 and 2, in the embodiment, the casing is a metal box 31 with an opening at the bottom, the top of the old concrete crash barrier 1 extends into the metal box 31, and the front and rear sides of the lower end of the metal box 31 are fixedly connected with a plurality of first steel plates 21 and second steel plates 22, and a stable connection structure is formed by adopting a welding mode during connection.

More specifically, the dense concrete portion includes a new reinforcement cage 32 and a concrete filler 33, the old reinforcement cage 11 is disposed inside the old concrete crash barrier 1, the new reinforcement cage 32 is connected with the old reinforcement cage 11, as shown in fig. 2, when the concrete portion is implemented, before the heightening portion 3 is installed, roughening needs to be performed on the top and left and right sides of the old concrete crash barrier 1, especially, the top surface needs to chisel the upper end of the original old reinforcement cage 11, welds the top end of the old reinforcement cage and the vertical reinforcement of the new reinforcement cage 32 into a whole, binds transverse reinforcement on the vertical reinforcement to form the new reinforcement cage 32, and then covers the metal box 31 after the metal box 31 is welded with the first steel plate and the second steel plate 22, the concrete filler 33 can be used to fill the inside of the metal box 31.

As shown in fig. 1 and 2, a plurality of pouring holes 311 are formed in the top of the metal box body 31, the pouring holes 311 are mainly used for pouring concrete filler 33 subsequently, the concrete filler 33 is mainly made of C30 self-compacting micro-expansion concrete, and the poured guardrail is timely covered with geotextile for water spraying and curing, and the curing period is not less than 7 days.

As shown in fig. 1 and 2, the bumper further comprises a buffer member, the buffer member is arranged on the heightening portion 3, the buffer member is a corrugated steel plate guardrail 4, the corrugated steel plate guardrail 4 is arranged on the metal box 31, the corrugated steel plate guardrail 4 has good crashworthiness and energy absorption effects, is not easy to crash, and can also play a good role in protecting vehicles and drivers and passengers.

Buffer gaps are reserved between the adjacent old concrete anti-collision guardrail 1 and the adjacent heightening parts 3, the buffer gaps are usually 2cm, the old concrete anti-collision guardrail needs to be cleaned up, a gap filler 5 is filled in the buffer gaps, the gap filler 5 mainly adopts a silica gel filler, and after the old concrete anti-collision guardrail is integrally installed, anti-corrosion operations such as paint spraying and the like are needed to be carried out on metal material parts.

The above is only a preferred embodiment of the present utility model, and is not intended to limit the present utility model, but various modifications and variations can be made to the present utility model by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model should be included in the protection scope of the present utility model.

Claims (8)

1. The utility model provides a crash barrier that secondary increases for increase reinforcement to a plurality of old concrete crash barrier (1), its characterized in that: the anti-collision guardrail comprises foundation pieces (2), wherein a plurality of foundation pieces (2) are fixedly arranged on the old concrete anti-collision guardrail (1) at intervals;

The heightening part (3), the heightening part (3) comprises a shell part and a concrete compacting part, and the shell part is fixedly connected with the foundation piece (2);

The concrete compact part is arranged in the shell part, and the bottom of the concrete compact part is connected with the old concrete anti-collision guardrail (1).

2. A secondary raised crash barrier as claimed in claim 1 further comprising a bumper member disposed on said raised portion (3).

3. The secondarily heightened crash barrier according to claim 2, wherein the base member (2) comprises a first steel plate (21), a second steel plate (22) and opposite-pulling screws (23), and the first steel plate (21) and the second steel plate (22) are respectively fixed on the front side and the rear side of the old concrete crash barrier (1) through a plurality of opposite-pulling screws (23).

4. A secondary heightened crash barrier according to claim 3, wherein the outer shell part is a metal box body (31) with an opening at the bottom, the top of the old concrete crash barrier (1) extends into the metal box body (31), and the front side and the rear side of the lower end of the metal box body (31) are fixedly connected with a plurality of first steel plates (21) and second steel plates (22).

5. The secondarily heightened crash barrier of claim 4 wherein a plurality of pouring holes (311) are formed in the top of the metal casing (31).

6. A secondary heightened crash barrier according to any one of claims 2-5, wherein the concrete dense portion comprises a new reinforcement cage (32) and concrete filler (33), an old reinforcement cage (11) is provided inside the old concrete crash barrier (1), and the new reinforcement cage (32) is connected with the old reinforcement cage (11).

7. A secondary raised crash barrier as recited in any one of claims 4-5 wherein said bumper is a corrugated steel panel barrier (4), said corrugated steel panel barrier (4) being disposed on said metal housing (31).

8. The secondarily heightened crash barrier according to claim 1, wherein a buffer gap is left between the adjacent old concrete crash barriers (1) and the adjacent heightened portions (3), and a gap filler (5) is filled in the buffer gap.