Novel liftable corrugated beam guardrail

Abstract

The utility model discloses a novel liftable corrugated beam guardrail which comprises a stand column, a stand column limiting hole is formed in the top of the surface of the stand column, a wedge-shaped head is arranged at the bottom end of the stand column, a lifting assembly is arranged at the top of the rear side of the stand column, and a lifting assembly limiting hole is formed in the middle of the front surface of the lifting assembly. Sliding energy dissipation holes are formed in the surfaces of the two ends of the front side of the lifting assembly, and a wave-shaped beam plate is arranged on the rear side of the lifting assembly. The device adapts to the additional paving requirement of a road surface layer, the wave-shaped beam plate can be lifted according to the additional paving condition of the road surface, meanwhile, machining is convenient, on the premise that the anti-collision performance is met, the device is made of steel plates, the structure is simple, the construction period requirement is met, meanwhile, the device is more economical, investment can be saved, and the stand columns are conveniently driven into soil and replaced under the action of the wedge-shaped heads; when the wave-shaped beam plate needs to be replaced, soil is not squeezed into the stand column during driving, so that the stand column is relatively easy to pull out, and the soil in the steel pipe stand column does not need to be removed when the stand column is used.

Description

Technical Field

[0001] The utility model belongs to the technical field of highway protection guardrails, and more specifically relates to a novel liftable corrugated beam guardrail. Background Art

[0002] As a safety facility on highways, corrugated beam guardrails play an important role in minimizing the severity of accidents when traffic accidents are inevitable. Guardrails are of great value to traffic safety and avoiding national economic losses and casualties.

[0003] Most of the corrugated beam guardrail columns are hollow steel pipes. During the highway construction stage, the guardrail columns need to be driven into the soil when setting up the guardrail. Since the soil will be squeezed into the steel pipe, the driving process is difficult. During the highway maintenance stage, if the guardrail is damaged and needs to be replaced, the column will be difficult to pull out. Even if it is pulled out, the soil inside the steel pipe is difficult to clean, which makes it very difficult to reuse the steel pipe columns.

[0004] When the road surface is raised, the relative height between the corrugated beam guardrail and the road surface is reduced. Especially after multiple coverings, the relative height between the corrugated beam guardrail and the road surface is seriously insufficient and lower than the standard value requirements, which seriously affects the safety protection performance of the corrugated beam guardrail. The "Highway Traffic Safety Facilities Design Specifications" (JTG / TD81-2017) has proposed an adaptation plan for the A-level corrugated beam steel guardrail to the lifting hole of the paved road surface, but no relevant adaptation plan has been proposed for SB-level and above guardrails.

[0005] Among the commonly used methods for renovating corrugated beam guardrails, if all new guardrails are replaced, the cost is high and a lot of waste will be caused. The process of removing the guardrails will also affect the stability of the roadbed. Welding or sleeved columns on the old guardrails cannot be maintained in real time. The eccentric barrier block method is only applicable to the case where the height is less than 5 cm. Therefore, some researchers have proposed a height-adjustable A-type guardrail. With the increasing proportion of large trucks and container transport vehicles on highways, the collision energy and impact position of guardrails have increased significantly. SB-level and above guardrails have become the main form in recent and subsequent highway construction. There is still a lack of solutions at home and abroad for the problem that SB-level and above guardrails cannot adapt to the paved road surface, and the guardrail columns are difficult to pull out when replacing the guardrails. For this reason, we propose a new type of integrated construction and maintenance corrugated beam guardrail. Utility Model Content

[0006] The purpose of the utility model is to provide a novel liftable corrugated beam guardrail, which is adapted to the need for pavement layer paving, and the corrugated beam plate can be lifted according to the pavement paving situation, and is easy to process. On the premise of meeting the anti-collision performance, it is made of steel plate, has a simple structure, and meets the construction period requirements. At the same time, the device is more economical and can save investment. The column is easy to drive into the soil and replace under the action of the wedge-shaped head. When the corrugated beam plate needs to be replaced, it is relatively easy to pull out the column because the soil is not squeezed into the inside of the column when it is driven in. There is no need to remove the soil inside the steel pipe column when using the column.

[0007] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0008] A new type of liftable corrugated beam guardrail comprises a column, a lifting component and a corrugated beam plate. A column limiting hole is provided on the top of the column surface, a wedge-shaped head is provided at the bottom end of the column, a lifting component is provided on the top of the rear side of the column, a lifting component limiting hole is provided in the middle of the front surface of the lifting component, sliding energy dissipation holes are provided on both end surfaces of the front side of the lifting component, a corrugated beam plate is provided on the rear side of the lifting component, a fastening bolt is provided between the column limiting hole and the lifting component limiting hole, and a fixing bolt is provided between the corrugated beam plate and the sliding energy dissipation hole.

[0009] Preferably, a column cap is provided at the top end of the column, and the column cap is snap-fittedly connected to the column.

[0010] Preferably, a corrugated plate limit block is provided on the rear side of the lifting assembly, and the corrugated plate limit block is adapted to the corrugated beam plate.

[0011] Preferably, the corrugated beam plate is made of steel plate.

[0012] Compared with the prior art, the beneficial effects of the utility model are:

[0013] This device can meet the needs of pavement layer paving. The corrugated beam plate can be lifted according to the pavement paving situation. It is easy to process and is made of steel plate under the premise of meeting the anti-collision performance. It has a simple structure and meets the construction period requirements. At the same time, this device is more economical and can save investment. The column is easy to drive into the soil and replace under the action of the wedge-shaped head. When the corrugated beam plate needs to be replaced, it is relatively easy to pull out the column because the soil is not squeezed into the inside of the column when it is driven in. There is no need to remove the soil inside the steel pipe column when using the column. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a structural schematic diagram of a new type of liftable corrugated beam guardrail;

[0015] Figure 2 It is a schematic diagram of the column structure of a new type of liftable corrugated beam guardrail;

[0016] Figure 3 It is a schematic diagram of the structure of a lifting component of a new type of liftable corrugated beam guardrail;

[0017] Figure 4 It is a schematic diagram of the side structure of a lifting component of a new type of liftable corrugated beam guardrail;

[0018] Figure 5 It is a schematic diagram of the column cap structure of a new type of liftable corrugated beam guardrail;

[0019] Among them: 1. Column; 11. Column limiting hole; 12. Wedge-shaped head; 2. Lifting component; 21. Lifting component limiting hole; 22. Sliding energy dissipation hole; 23. Corrugated plate limiting block; 3. Corrugated beam plate; 4. Column cap. DETAILED DESCRIPTION

[0020] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0021] Embodiment 1:

[0022] See also Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5A new type of liftable corrugated beam guardrail comprises a column 1, an elevation component 2 and a corrugated beam plate 3, characterized in that: a column limiting hole 11 is provided on the top of the surface of the column 1, a wedge-shaped head 12 is provided at the bottom end of the column 1, a lifting component 2 is provided on the top of the rear side of the column 1, a lifting component limiting hole 21 is provided in the middle of the front surface of the lifting component 2, sliding energy dissipation holes 22 are provided on the surfaces of both ends of the front side of the lifting component 2, a corrugated beam plate 3 is provided on the rear side of the lifting component 2, a fastening bolt is provided between the column limiting hole 11 and the lifting component limiting hole 21, a fixing bolt is provided between the corrugated beam plate 3 and the sliding energy dissipation hole 22, a column cap 4 is provided on the top of the column 1 to prevent rainwater from entering the interior of the column 1, the column cap 4 is connected to the column 1 in a snap-fitting manner, a wave plate limiting block 23 is provided on the rear side of the lifting component 2, the wave plate limiting block 23 is adapted to the corrugated beam plate 3, and the wave plate limiting block 23 is embedded in the corrugated beam The trough of the plate 3 is used for positioning. The corrugated beam plate 3 is made of steel plate, which makes the guardrail more durable while meeting the anti-collision requirement; the wedge-shaped head 12 is located at the end of the column 1. When the column 1 is driven into the soil, the shape of the wedge-shaped head 12 can better fit the soil, reduce resistance, and make it easier for the column 1 to be driven into the soil. At the same time, the wedge-shaped head 12 closes the end of the column 1. When the column 1 is driven into the soil, the soil will not enter the column 1. The corrugated plate limit block 23 arranged on the rear side of the lifting component 2 is embedded in the trough of the corrugated beam plate 3, which has an effective positioning effect. The lifting component 2 can move on the column 1 in the vertical direction and is fixed and limited by fastening bolts. The sliding energy dissipation hole 22 on the lifting component 2 is connected to the corrugated beam plate 3 by fixing bolts. When the guardrail is hit, the fixing bolts at the sliding energy dissipation hole 22 will be displaced, which plays a certain energy dissipation role.

[0023] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A novel elevating corrugated beam guardrail, comprising a column (1), an elevating assembly (2), and a corrugated beam plate (3), characterized in that: A column limiting hole (11) is provided at the top of the surface of the column (1), a wedge-shaped head (12) is provided at the bottom end of the column (1), a lifting component (2) is provided at the top of the rear side of the column (1), a lifting component limiting hole (21) is provided in the middle of the front surface of the lifting component (2), sliding energy dissipation holes (22) are provided on both end surfaces of the front side of the lifting component (2), a corrugated beam plate (3) is provided at the rear side of the lifting component (2), a fastening bolt is provided between the column limiting hole (11) and the lifting component limiting hole (21), and a fixing bolt is provided between the corrugated beam plate (3) and the sliding energy dissipation hole (22).

2. A novel elevating corrugated beam guardrail according to claim 1, characterized in that: A column cap (4) is provided at the top end of the column (1), and the column cap (4) is snap-fittedly connected to the column (1).

3. The novel elevating corrugated beam guardrail according to claim 1 is characterized in that: A corrugated plate limiting block (23) is arranged on the rear side of the lifting assembly (2), and the corrugated plate limiting block (23) is adapted to the corrugated beam plate (3).

4. The novel elevating corrugated beam guardrail according to claim 1 is characterized in that: The corrugated beam plate (3) is made of steel plate.

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