Highway anti-collision guardrail

Abstract

The utility model discloses a highway anti-collision guardrail, and relates to the technical field of highway engineering. Comprising a supporting column which is fixed on a road surface; and the protective shell is fixed to the road surface, the supporting column is located in the protective shell, a grouting hole is formed in the top of the protective shell, and the protective shell is filled with concrete. The utility model has the advantages of simple structure, definite stress, high strength, convenience in installation, energy conservation and environmental protection, and higher economic value.

Description

Technical Field

[0001] This utility model relates to the field of highway engineering technology, and in particular to a highway crash barrier. Background Technology

[0002] Statistics show that 30% of highway traffic accidents involve vehicles coming into contact with highway guardrails (collisions, scrapes, etc.) or directly running off the road. Serious and major accidents caused by this account for over 62% of all such accidents, making guardrail safety crucial. Many early-built highway bridges and culverts use corrugated guardrails, which are insufficient to meet the current safety requirements for highway guardrail impact resistance. Utility Model Content

[0003] The main purpose of this utility model is to provide a highway crash barrier to solve the above-mentioned problems.

[0004] To achieve the above objectives, this utility model provides a highway crash barrier, comprising:

[0005] Support column, which is fixed to the road surface;

[0006] A protective shell is fixed to the road surface, and a support column is located inside the protective shell. A grouting hole is provided at the top of the protective shell, and the protective shell is filled with concrete.

[0007] Furthermore, a pre-embedded flange is provided at the bottom of the support column, a portion of which is embedded in the road surface, and the pre-embedded flange is fixedly connected to the road surface by anchor bolts.

[0008] Furthermore, multiple anchor bolts are provided, and the multiple anchor bolts are connected by angle steel brackets located within the road surface.

[0009] Furthermore, multiple support ribs are evenly distributed on the support column, and the support ribs abut against the pre-embedded flange.

[0010] Furthermore, the protective shell is equipped with reinforcing bars.

[0011] Furthermore, the outer surface of the protective shell is smooth, while the inner surface is rough.

[0012] Furthermore, the inner wall of the protective shell is evenly distributed with multiple ribs, and the surface of the ribs is rough.

[0013] This utility model has the following beneficial effects:

[0014] (1) Simple structure, clear stress, and high strength.

[0015] (2) It can be prefabricated and assembled for construction, which is convenient and quick.

[0016] (3) The project involves a small amount of work and is energy-saving and environmentally friendly.

[0017] (4) Low cost and good economic efficiency. Attached Figure Description

[0018] Figure 1 This is a structural schematic diagram of a highway crash barrier according to the present invention;

[0019] Figure 2 This is a schematic diagram of the protective shell for a highway crash barrier according to the present invention;

[0020] Figure 3 This is a schematic diagram of another embodiment of the highway crash barrier of this utility model.

[0021] In the diagram: 1-support column; 2-protective shell; 3-embedded flange; 4-anchor bolt; 5-angle steel bracket; 6-rebar installation. Detailed Implementation

[0022] To achieve the above objectives and effects, the technical means and structure adopted by this utility model are described in detail with reference to the accompanying drawings, focusing on the features and functions of the preferred embodiments of this utility model.

[0023] As attached Figure 1-3 As shown, this utility model provides a highway crash barrier, comprising:

[0024] Support column 1 is fixed to the road surface;

[0025] Protective shell 2 is fixed on the road surface. Support column 1 is located inside the protective shell 2. Grouting holes are provided at the top of the protective shell 2. The protective shell 2 is filled with concrete.

[0026] Concrete is poured into the protective shell 2 through the grouting hole, and the concrete makes the protective shell 2 and the support column 1 form a whole. After the concrete is poured, it is cured and the grouting hole is sealed with mortar.

[0027] Specifically, the arrangement density of support columns 1 is set according to actual needs.

[0028] Specifically, the protective shell 2 is made of ultra-high performance concrete.

[0029] Specifically, the outer surface of the protective shell 2 is smooth, while the inner surface is rough. The bottom of the protective shell 2 is fixed to the road surface with bolts.

[0030] Specifically, a pre-embedded flange 3 is installed at the bottom of the support column 1. A portion of the pre-embedded flange 3 is embedded in the road surface, and the pre-embedded flange 3 is fixedly connected to the road surface by anchor bolts 4. This improves the fixing effect between the support column 1 and the road surface.

[0031] Specifically, multiple anchor bolts 4 are provided, and these anchor bolts 4 are connected by angle steel brackets 5, which are located within the road surface. This further improves the fixing effect between the support column 1 and the road surface.

[0032] Specifically, multiple support ribs are evenly distributed on the support column 1, and the support ribs abut against the pre-embedded flange 3. Thus, the multiple support ribs improve the fixation between the support column 1 and the pre-embedded flange 3.

[0033] Specifically, the protective shell 2 is equipped with reinforcing bars 6. The reinforcing bars 6 are used to improve the performance of the concrete.

[0034] Preferably, the number of rebars 6 can be set according to actual needs, and the bottom of the rebars 6 extends into the road surface.

[0035] In another embodiment, multiple ribs are evenly distributed on the inner wall of the protective shell 2, and the surfaces of the ribs are rough. Multiple ribs can effectively improve the performance of the protective shell 2 and enhance the robustness of the device.

[0036] In another embodiment, the device is provided with multiple protective shells 2 along the direction of the road. The two ends of the multiple protective shells 2 are connected and the interiors of the multiple protective shells 2 are interconnected, so that they are connected into a whole after pouring. The gaps between the multiple protective shells 2 are filled with sealant. The ends of the outermost two protective shells 2 are provided with sealing plates to prevent concrete from flowing out.

[0037] In another embodiment, construction workers can modify existing corrugated guardrails.

[0038] During the modification, the construction workers first removed the existing corrugated plates and anti-blocking blocks of the corrugated guardrail, and used the existing corrugated guardrail posts as support posts 1. They then directly arranged rebar 6 next to the posts to form a steel reinforcement skeleton. After the rebar 6 was arranged, the protective shell 2 was installed and the gaps between the two adjacent protective shell 2 sections were filled with sealant. Finally, the concrete was poured.

[0039] This saves materials and construction time, greatly improves construction efficiency, and ensures smooth road traffic.

[0040] Specifically, the protective shell 2 is prefabricated in sections at the factory and then transported to the construction site.

[0041] In another embodiment, when the support column 1 is located on an earthen road surface, the bottom of the support column 1 is fixed by inserting it into the soil. In this case, there is no need to install rebar 6, anchor bolts 4, angle steel brackets 5 and pre-embedded flanges 6.

[0042] Specifically, the density of support columns 1 on earthen pavement should be greater than that on cement-based pavement.

[0043] The above description is only a preferred embodiment of the present utility model and not all embodiments. Anyone should know that structural changes made under the guidance of the present utility model are protected by the present utility model. All technical solutions that are the same as or similar to the present utility model are within the scope of protection of the present utility model.

Claims

1. A highway crash barrier, characterised in that, Include: Supporting column (1), the supporting column (1) is fixed on the road surface; Protective shell (2), the protective shell (2) is fixed on the road surface, the supporting column (1) is located in the protective shell (2), the top of the protective shell (2) is provided with a grouting hole, and the protective shell (2) is filled with concrete.

2. A highway crash barrier as claimed in claim 1, wherein, The bottom of the supporting column (1) is provided with a pre-buried flange (3), part of the pre-buried flange (3) is embedded in the road surface, and the pre-buried flange (3) is fixedly connected with the road surface through the anchor bolt (4).

3. A highway crash barrier as claimed in claim 2, wherein, The anchor bolt (4) is provided with a plurality of anchor bolts (4), and the plurality of anchor bolts (4) are connected through angle steel support (5), and the angle steel support (5) is located in the road surface.

4. A highway crash barrier as claimed in claim 3 wherein, The supporting column (1) is uniformly distributed with a plurality of supporting rib plates, and the supporting rib plates are in contact with the pre-buried flange (3).

5. A highway crash barrier as claimed in claim 1 wherein, The protective shell (2) is provided with a reinforcing bar (6).

6. A highway crash barrier as claimed in claim 1 wherein, The outer surface of the protective shell (2) is smooth, and the inner surface is rough.

7. A highway crash barrier as claimed in claim 1 wherein, The inner wall of the protective shell (2) is uniformly distributed with a plurality of rib plates, and the surface of the rib plate is rough.

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