Rigid guardrail with buffering energy dissipation structure

Abstract

The utility model discloses a rigid guardrail with a buffer energy dissipation structure, which comprises a guardrail wall body, a buffer component and a connecting anchor bolt, the guardrail wall body is longitudinally arranged in a full-length manner, the buffer component is continuously arranged on the collision face side of the guardrail wall body, the shape of the back of the buffer component is fitted with the shape of the guardrail wall body, and the connecting anchor bolt is connected with the buffer component. The section shape of each buffering component is formed by staggering a plurality of planes and convex shapes, the buffering components are segments, the buffering components are longitudinally spliced through connecting anchor bolt holes in the planes and lap joint steel plates, and the buffering components and the guardrail wall body are connected in an anchoring mode through connecting anchor bolts. A good collision buffering and energy dissipation effect can be achieved when a vehicle collides with the rigid guardrail; the friction force between the vehicle and the guardrail is increased by the buffering component material; the buffer energy dissipation structure is convenient to install and construct and low in manufacturing cost; no delineator needs to be arranged, and the buffer component can achieve induction and warning functions at the same time.

Description

Technical Field

[0001] The utility model relates to a rigid guardrail in the field of highway safety protection. Background Art

[0002] With the gradual improvement of the highway network and the rapid development of large-scale and heavy-duty vehicles, the transportation capacity has also been greatly improved. However, as a result, there are more and more traffic accidents on the road, and vehicles collide with roadside or central median guardrails. Conventional guardrails include concrete guardrails, corrugated beam guardrails and beam-column guardrails. Concrete guardrails are rigid guardrails. When an out-of-control vehicle collides with a rigid guardrail, the guardrail has high rigidity and does not deform after colliding with the out-of-control vehicle. It does not have any buffering effect on the vehicle, resulting in severe compression of the living space of the drivers and passengers on the vehicle. At the same time, since large vehicles out of control will rub against the rigid guardrail, the rigid guardrail has a smooth multiple slope on its collision surface. The sliding friction resistance can be increased by adding a component to the collision surface. It also helps to buffer and absorb the collision energy of the vehicle to protect the safety of the drivers and passengers on the vehicle and reduce the severity of the accident rate.

[0003] Based on this situation, a rigid guardrail with a buffering and energy dissipation structure is proposed, which has a simple structure and can be installed, and can have a good buffering and energy dissipation effect. Utility Model Content

[0004] The purpose of the utility model is to provide a roadbed beam-column type landscape steel guardrail to overcome the above-mentioned deficiencies in the current prior art.

[0005] The utility model will be realized through the following technical solutions:

[0006] A rigid guardrail with a buffering and energy dissipation structure comprises a guardrail wall, a buffering member, and connecting anchor bolts. The guardrail wall is arranged longitudinally throughout the entire length, and the buffering member is continuously arranged on the collision surface side of the guardrail wall. The back shape of the buffering member fits the shape of the guardrail wall, and the cross-sectional shape of the buffering member is composed of a plurality of planes and convex shapes interlaced. The buffering member is a segment, and the buffering members are longitudinally spliced ​​through connecting anchor bolt holes on the plane and overlapping steel plates, and the buffering member is anchored and connected to the guardrail wall by connecting anchor bolts.

[0007] Furthermore, the buffer component is integral or separated. When the buffer component is integral, the cross section is a "bow" shape composed of planes and convex shapes, which is composed of three planes and two convex shapes. The connecting anchor bolts pass through the plane and the overlapping steel plate respectively and are anchored in the guardrail wall. The overlapping steel plate is set on the plane, and the two ends are anchored and overlapped on different buffer components through connecting anchor bolts.

[0008] When the buffer component is of separate type, the cross section is a hollow convex shape or a solid convex shape, and a plurality of rows are arranged longitudinally and fixed to the collision surface side of the guardrail wall by gluing or connecting anchor bolts.

[0009] Furthermore, when the buffer component is a hollow convex shape, its interior may be filled with foam metal.

[0010] Furthermore, the buffer component is made of steel or flame-retardant rubber material.

[0011] Furthermore, the vertical position of the outer plane of the buffer component is at most flush with the impact surface of the guardrail wall.

[0012] Furthermore, the guardrail wall is arranged on the road side or the central dividing strip, the collision surface of the guardrail wall is single-sided or double-sided, and the slope is F-type, or reinforced type, or single-slope type.

[0013] Furthermore, the outer surface of the buffer component is provided with a yellow and black longitudinal reflective film.

[0014] After adopting the above technical solution, the utility model has the following beneficial effects:

[0015] (1) When a vehicle collides with a rigid guardrail, it can have a good collision buffering and energy dissipation effect;

[0016] (2) The material of the buffer component will increase the friction between the vehicle and the guardrail;

[0017] (3) The buffer energy dissipation structure is easy to install and construct, and has low cost;

[0018] (4) There is no need to set contour marks, and the buffer component can have both induction and warning functions. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0020] Figure 1 It is a cross-sectional view of Embodiment 1 of the present utility model;

[0021] Figure 2 This is an elevation view of Embodiment 1 of the present utility model;

[0022] Figure 3 This is a three-dimensional diagram of a buffer component of Embodiment 1 of the present utility model;

[0023] Figure 4This is a vertical view of the splicing position of the buffer component of Example 1 of the utility model;

[0024] Figure 5 It is a cross-sectional view of Embodiment 2 of the present utility model;

[0025] Figure 6 This is a elevation view of Embodiment 2 of the present utility model;

[0026] Figure 7 It is a cross-sectional view of Embodiment 3 of the present utility model;

[0027] Figure 8 It is a vertical view of embodiment 3 of the present utility model.

[0028] The following are marked in the figure:

[0029] 1. Guardrail wall; 2. Buffer component; 3. Connection anchor bolt; 4. Flat surface; 5. Convex shape; 6. Overlap steel plate; 7. Reflective film; 8. Foam metal; 9. Connection anchor bolt hole. DETAILED DESCRIPTION

[0030] 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 belong to the scope of protection of the utility model.

[0031] Figure 1-Figure 2 The present invention is an embodiment 1 of a rigid guardrail with a buffering energy dissipation structure, comprising a guardrail wall 1, a buffering member 2, and a connecting anchor bolt 3. The guardrail wall 1 is longitudinally arranged throughout, and the guardrail wall 1 is arranged in a central dividing strip. The slope of the guardrail wall 1 is a single-piece F-type, and the buffering member 2 is attached to the collision surface of both sides of the guardrail wall 1. Figure 3 The buffer component 2 is a three-dimensional diagram. The cross section of the buffer component 2 is in the shape of a "bow", which is composed of three planes 4 and two hollow convex shapes 5 that are staggered and continuous. Three connecting anchor holes 9 are respectively set on the three planes 4. The material is steel. Figure 4 This is an elevation view of the splicing position of the buffer component 2. Every two sections of the buffer component 2 are spliced ​​with overlapping steel plates 6 longitudinally arranged in the plane. They are anchored to the guardrail wall 1 through multiple connecting anchor bolts 3. The buffer component 2 is pasted with a yellow and black reflective film 7.

[0032] Figure 5-Figure 6Embodiment 2 of a rigid guardrail with a buffering and energy dissipation structure includes a guardrail wall 1 and a buffering member 2. The guardrail wall 1 is arranged in a longitudinal direction and is arranged on the road side. The slope of the guardrail wall 1 is a reinforced type. The buffering member 2 is attached to the collision side of the guardrail wall 1 and can be flush with the collision side of the guardrail wall 1 when arranged. The buffering member 2 is a separate type, made of steel, and has a hollow convex cross-section 5. The hollow convex 5 is filled with foam metal 8 and is arranged in two rows in the longitudinal direction and is glued to the collision side of the guardrail wall 1. A yellow and black reflective film 7 is attached to the buffering member 2.

[0033] Figure 7-Figure 8 Embodiment 3 of a rigid guardrail with a buffering and energy dissipation structure includes a guardrail wall 1, a buffering member 2, and connecting anchor bolts 3. The guardrail wall 1 is arranged in a longitudinal direction, and the guardrail wall 1 is arranged on the road side. The slope of the guardrail wall 1 is a single slope type. The buffering member 2 is attached to the collision side of the guardrail wall 1. The buffering member 2 is a separate type, and the material is flame-retardant rubber. The structural cross-section is a solid convex shape 5, which is arranged in a row in the longitudinal direction and is anchored by multiple connecting anchor bolts 3. The buffering member 2 is attached to a yellow and black reflective film 7.

[0034] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A rigid guardrail with a buffering and energy dissipation structure, comprising a guardrail wall (1), a buffering member (2), and a connecting anchor bolt (3), characterized in that: The guardrail wall (1) is arranged longitudinally through the entire length, the buffer component (2) is continuously arranged on the collision surface side of the guardrail wall (1), the back shape of the buffer component (2) fits the shape of the guardrail wall (1), the cross-sectional shape of the buffer component (2) is composed of a plurality of planes (4) and convex shapes (5) interlaced, the buffer component (2) is segmented, the buffer components (2) are longitudinally spliced ​​through connecting anchor holes (9) on the planes (4) and overlapping steel plates (6), and the buffer component (2) is anchored and connected to the guardrail wall (1) through connecting anchor bolts (3).

2. The rigid guardrail with a buffering and energy dissipation structure according to claim 1, characterized in that: The buffer component (2) is of an integral type or a separate type. When the buffer component (2) is of an integral type, the cross section is a "bow" shape composed of interlaced planes (4) and convex shapes (5), and is composed of three interlaced planes (4) and two convex shapes (5). The connecting anchor bolts (3) pass through the planes (4) and the overlapping steel plates (6) respectively and are then anchored in the guardrail wall (1). The overlapping steel plates (6) are arranged on the planes (4), and the two ends are respectively anchored and overlapped on different buffer components (2) through the connecting anchor bolts (3); When the buffer member (2) is of a separate type, the cross section is a hollow convex shape (5) or a solid convex shape (5), and a plurality of rows are arranged longitudinally through the length, and are fixed to the collision surface side of the guardrail wall (1) by gluing or connecting anchor bolts (3).

3. The rigid guardrail with a buffering and energy dissipation structure according to claim 1, characterized in that: When the buffer component (2) is a hollow convex shape (5), the interior thereof may be filled with foam metal (8).

4. The rigid guardrail with a buffering and energy dissipation structure according to claim 1, characterized in that: The buffer component (2) is made of steel or flame-retardant rubber material.

5. The rigid guardrail with a buffer and energy dissipation structure according to claim 1, characterized in that: The vertical position of the outer plane of the buffer component (2) is at most flush with the collision surface of the guardrail wall (1).

6. The rigid guardrail with a buffering and energy dissipation structure according to claim 1, characterized in that: The guardrail wall (1) is arranged on the road side or the central dividing strip, the collision surface of the guardrail wall (1) is single-sided or double-sided, and the slope is in the form of F-type, reinforced type, or single-slope type.

7. The rigid guardrail with a buffer and energy dissipation structure according to claim 1, characterized in that: The outer surface of the buffer component (2) is provided with a longitudinal reflective film (7) in alternating yellow and black.

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