Impact-resistant concrete cover plate for expressway

Abstract

The utility model discloses a shock-resistant concrete cover plate for expressways, which comprises a concrete cover plate body, a reinforcing rib component is arranged in the middle of the inside of the concrete cover plate body, and shock-resistant interlayers are pre-buried on the upper side and the lower side of the reinforcing rib component. An anti-impact fiber net is arranged on the side, close to and / or away from the reinforcing rib assembly, of the anti-impact interlayer. An anti-collision corner plate is arranged at the corner of the outer part of the concrete cover plate body; according to the concrete cover plate, the impact resistance of the concrete cover plate can be effectively improved, and meanwhile the weight of the concrete cover plate is reduced while the impact resistance of the concrete cover plate is guaranteed.

Description

Technical Field

[0001] The utility model belongs to the technical field of road and bridge concrete cover plates, and relates to an impact-resistant concrete cover plate for expressways. Background Art

[0002] In highway projects, in order to cover the trenches and protect the cables, the cover plates are usually fastened on the top of the highway facilities such as drainage ditches and lower pipeline troughs. Since the highway cover plates are affected by external forces during use, such as external impacts on the cover plates, the mechanical properties of the cover plates are particularly important.

[0003] Existing highway cover plates usually prefabricate steel mesh inside concrete molds, and then pour concrete inside the concrete molds to obtain concrete cover plates, which makes existing highway cover plates very heavy and inconvenient to transport and install. In addition, since the existing concrete cover plates have only steel bars and fiber fabric mesh as supporting structures inside, the existing slow-setting soil cover plate structure has limited impact resistance, especially when facing strong impact forces perpendicular to the plate surface, which can easily cause the concrete cover plate to crack and deform.

[0004] Therefore, the utility model aims at the above-mentioned technical problems existing in the existing highway cover plates, and discloses an impact-resistant concrete cover plate for highways. Utility Model Content

[0005] The utility model aims to provide an impact-resistant concrete cover plate for a highway, which can effectively improve the impact resistance of the concrete cover plate, and reduce the weight of the concrete cover plate while ensuring the impact resistance of the concrete cover plate.

[0006] The utility model is realized by the following technical solutions:

[0007] An impact-resistant concrete cover plate for highways comprises a concrete cover plate body, a reinforcing rib assembly is arranged at the middle position inside the concrete cover plate body, an impact-resistant interlayer is pre-embedded on the upper and lower sides of the reinforcing rib assembly, and an impact-resistant fiber mesh is arranged on the side of the impact-resistant interlayer close to and / or away from the reinforcing rib assembly; and anti-collision corner plates are arranged at the outer corners of the concrete cover plate body.

[0008] First, pour the lower concrete to the lower elevation inside the cover casting mold, and then embed the lower impact-resistant interlayer in the lower concrete. Lay the impact-resistant fiber mesh on the upper and lower sides of the reinforcement component, and then snap the reinforcement component on top of the lower impact-resistant interlayer. Then continue to pour concrete to the upper elevation, and then install the upper impact-resistant interlayer on the upper side of the reinforcement component, and finally completely cast the concrete cover body.

[0009] The concrete cover plate body is supported and reinforced by the reinforcement rib assembly in the middle of the inner side of the concrete cover plate body, and the impact resistance of the concrete cover plate body is improved by the impact-resistant interlayers arranged on the upper and lower sides of the reinforcement rib assembly, and the weight of the concrete cover plate body is reduced under the premise of ensuring the strength and impact resistance of the concrete cover plate body. At the same time, anti-collision corner plates are arranged at the corners of the outer side of the concrete cover plate body to protect the corners of the concrete cover plate body.

[0010] In order to better realize the utility model, further, the impact-resistant interlayer includes an impact-resistant foam core and a reinforcing fiber mesh, the interior of the reinforcing fiber mesh is filled with at least one impact-resistant foam core, and one side of the impact-resistant foam core is fitted with a reinforcing rib assembly.

[0011] In order to better realize the present invention, further, the reinforcing fiber mesh includes an organic fiber mesh and / or an inorganic fiber mesh.

[0012] In order to better realize the utility model, further, the reinforcing rib assembly includes middle reinforcing ribs and reinforcing corner ribs. The middle reinforcing ribs are arranged in the middle position inside the concrete cover plate body, and the edges on the upper and lower sides of the middle reinforcing ribs are provided with reinforcing corner ribs extending toward the corners of the concrete cover plate body.

[0013] In order to better realize the utility model, further, the upper and lower sides of the middle reinforcing ribs are paved with impact-resistant fiber mesh and impact-resistant interlayer, and the impact-resistant fiber mesh and impact-resistant interlayer are both located between the reinforcing angle ribs on both sides.

[0014] In order to better realize the utility model, further, the exterior of the middle reinforcing ribs and the reinforcing angle ribs are wrapped with steel fiber bundles or basalt fiber bundles or polypropylene fiber bundles.

[0015] In order to better realize the utility model, further, the impact-resistant fiber web includes an organic fiber web and / or an inorganic fiber web.

[0016] In order to better realize the utility model, further, the impact-resistant fiber mesh is any one of a copper-plated steel fiber mesh, a polypropylene fiber mesh, and a basalt fiber mesh.

[0017] In order to better realize the utility model, further, the thickness of the concrete cover plate body is 2cm-2.5cm.

[0018] Compared with the prior art, the utility model has the following advantages and beneficial effects:

[0019] The utility model arranges a reinforcing rib assembly at the inner middle position of the concrete cover plate body, and supports and reinforces the concrete cover plate body through the reinforcing rib assembly, thereby ensuring the stability of the concrete cover plate body; at the same time, the utility model arranges an impact-resistant interlayer made of lightweight foam material on the upper and lower sides of the reinforcing rib assembly, and the impact-resistant interlayer effectively resists external impacts, thereby improving the impact resistance of the concrete cover plate body, and at the same time can effectively reduce the weight of the concrete cover plate body, thereby achieving a reduction in the thickness of the concrete cover plate. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 This is a schematic diagram of the internal structure of the impact-resistant concrete cover for highways;

[0021] Figure 2 This is a schematic diagram of the external structure of an impact-resistant concrete cover for a highway;

[0022] Figure 3 A schematic diagram of providing an impact-resistant interlayer on the upper and lower sides of a stiffener assembly;

[0023] Figure 4 A schematic diagram of two impact-resistant interlayers being provided on the upper and lower sides of a stiffener assembly;

[0024] Figure 5 This is a schematic diagram of the installation of the impact-resistant interlayer;

[0025] Figure 6 It is a structural schematic diagram of the reinforcement rib assembly;

[0026] Figure 7 Schematic diagram of the structure of the impact-resistant interlayer.

[0027] Among them: 1-concrete cover plate body; 2-reinforcement rib assembly; 3-impact-resistant interlayer; 4-impact-resistant fiber mesh; 5-anti-collision angle plate; 21-middle reinforcement rib; 22-reinforcement angle rib; 31-impact-resistant foam inner core; 32-reinforcement fiber mesh. DETAILED DESCRIPTION

[0028] The following detailed descriptions are all illustrative and are intended to provide further explanation of the present invention. Unless otherwise specified, all technical and scientific terms used in the present invention have the same meanings as those commonly understood by those skilled in the art to which the present invention belongs.

[0029] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the utility model. As used herein, unless the utility model explicitly states otherwise, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "comprise" and / or "include" are used in this specification, it indicates the presence of features, steps, operations, devices, components and / or combinations thereof.

[0030] For the convenience of description, if the words "up", "down", "left" and "right" appear in the present invention, they only indicate that they are consistent with the up, down, left and right directions of the drawings themselves, and do not limit the structure. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or component must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it cannot be understood as a limitation on the present invention.

[0031] Terminology explanation section: The terms "install", "connect", "connect", "fixed" and so on in the present utility model should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integrated connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be an internal connection between two elements, or an interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present utility model can be understood according to the specific circumstances.

[0032] Embodiment 1:

[0033] An impact-resistant concrete cover plate for a highway in this embodiment, such as Figure 1 and Figure 2 As shown, it includes a concrete cover plate body 1, a reinforcing rib assembly 2 is arranged at the inner middle position of the concrete cover plate body 1, and impact-resistant interlayers 3 are embedded on the upper and lower sides of the reinforcing rib assembly 2, and an impact-resistant fiber mesh 4 is arranged on the side of the impact-resistant interlayer 3 close to and / or away from the reinforcing rib assembly 2; anti-collision corner plates 5 are arranged at the outer corners of the concrete cover plate body 1.

[0034] The concrete cover plate body 1 is an active powder concrete cover plate, which has the characteristics of high strength, high toughness and excellent durability. A reinforcing rib assembly 2 is arranged in the middle position inside the active powder concrete cover plate along the length direction of the active powder concrete cover plate, and the active powder concrete cover plate is supported and reinforced by the reinforcing rib assembly 2. At the same time, an impact-resistant interlayer 3 is arranged on the upper and lower sides of the reinforcing rib assembly 2. The reinforcing rib assembly 3 is made of lightweight foam material, has excellent impact resistance, and can effectively reduce the weight of the entire active powder concrete cover plate. By setting the impact-resistant interlayer 3, the impact resistance of the entire active powder concrete cover plate can be effectively improved. At the same time, in order to protect the impact-resistant interlayer 3, an impact-resistant fiber mesh 4 is arranged on the side of the impact-resistant interlayer 3 close to and / or away from the reinforcing rib assembly 2. At the same time, in order to protect the external corners of the active powder concrete cover plate, an anti-collision corner plate 5 is covered at the external corners of the active powder concrete cover plate, and the anti-collision corner plate 5 is arranged to prevent the external corners of the active powder concrete cover plate from being directly impacted.

[0035] Preferably, an impact-resistant fiber mesh 4 is provided on both sides of the impact-resistant interlayer 3 close to and away from the reinforcing rib assembly 2 , and the impact-resistant fiber mesh 4 further improves the toughness and impact resistance of the impact-resistant interlayer 3 .

[0036] Embodiment 2:

[0037] An impact-resistant concrete cover plate for a highway is improved on the basis of Example 1, such as Figure 5 and Figure 7 As shown, the impact-resistant interlayer 3 includes an impact-resistant foam core 31 and a reinforcing fiber mesh 32 . The interior of the reinforcing fiber mesh 32 is filled with at least one impact-resistant foam core 31 , and one side of the impact-resistant foam core 31 is in contact with the reinforcing rib assembly 2 .

[0038] The impact-resistant foam core 31 adopts a density less than or equal to 190KG / m 3 The light foam material is prepared, and the reinforcing fiber mesh 32 includes an organic fiber mesh and / or an inorganic fiber mesh. Figure 3 As shown, an impact-resistant foam core 31 is arranged inside the reinforcing fiber mesh 32 along the length direction of the concrete cover plate body 1. Figure 4 As shown, two impact-resistant foam cores 31 are arranged at intervals inside the reinforcing fiber mesh 32 along the length direction of the concrete cover plate body 1. The impact-resistant foam core 31 cushions the impact on the concrete cover plate body 1, thereby improving the impact resistance of the concrete cover plate body 1. The reinforcing fiber mesh 32 is used to protect the impact-resistant foam core 31 and limit the position of the impact-resistant foam core 31.

[0039] Furthermore, the reinforcing fiber mesh 32 is any one of a copper-plated steel fiber mesh, a polypropylene fiber mesh, and a basalt fiber mesh.

[0040] The other parts of this embodiment are the same as those of Embodiment 1, and thus will not be described in detail.

[0041] Embodiment 3:

[0042] An impact-resistant concrete cover plate for a highway is improved on the basis of embodiment 1 or 2, such as Figure 6 As shown, the reinforcing rib assembly 2 includes an intermediate reinforcing rib 21 and an reinforcing corner rib 22. The intermediate reinforcing rib 21 is arranged at the middle position inside the concrete cover plate body 1, and the reinforcing corner ribs 22 extending toward the corners of the concrete cover plate body 1 are arranged at the edges on the upper and lower sides of the intermediate reinforcing rib 21.

[0043] The middle reinforcement ribs 21 include a plurality of horizontal reinforcement ribs parallel to the length direction of the concrete cover slab body 1 and a plurality of horizontal reinforcement ribs parallel to the width direction of the concrete cover slab body 1, which are staggered to form a mesh structure. Reinforcement angle ribs 22 extending toward the corners of the concrete cover slab body 1 and inclined are arranged at the edges on the upper and lower sides of the middle reinforcement ribs 21. The interior of the concrete cover slab body 1 is reinforced by the middle reinforcement ribs 21, and the corner area of ​​the concrete cover slab body 1 is reinforced by the reinforcement angle ribs 22.

[0044] Furthermore, the impact-resistant fiber mesh 4 and the impact-resistant interlayer 3 are laid on the upper and lower sides of the middle reinforcing rib 21, and the impact-resistant fiber mesh 4 and the impact-resistant interlayer 3 are both located between the reinforcing angle ribs 22 on both sides. The impact-resistant fiber mesh 4 is directly tied to the upper and lower sides of the middle reinforcing rib 21 by steel wire, and then the impact-resistant interlayer 3 is arranged on the impact-resistant fiber mesh 4, and the impact-resistant fiber mesh 4 and the impact-resistant interlayer 3 are both located between the reinforcing angle ribs 22 on both sides, so as to limit the positions of the impact-resistant fiber mesh 4 and the impact-resistant interlayer 3.

[0045] Furthermore, the outside of the middle reinforcing rib 21 and the reinforcing angle rib 22 are wrapped with steel fiber bundles, basalt fiber bundles or polypropylene fiber bundles, and the steel bars are threaded steel bars with a diameter of 6mm-10mm. The outside of the threaded steel bars is coated with any one of steel fiber bundles, basalt fiber bundles and polypropylene fiber bundles, thereby improving the corrosion resistance of the middle reinforcing rib 21 and the reinforcing angle rib 22.

[0046] The other parts of this embodiment are the same as those of Embodiment 1 or 2, and thus will not be described in detail.

[0047] Embodiment 4:

[0048] An impact-resistant concrete cover plate for a highway is improved on the basis of any one of embodiments 1-3, wherein the impact-resistant fiber mesh 4 comprises an organic fiber mesh and / or an inorganic fiber mesh.

[0049] Furthermore, the impact-resistant fiber mesh 4 is any one of a copper-plated steel fiber mesh, a polypropylene fiber mesh, and a basalt fiber mesh.

[0050] The other parts of this embodiment are the same as any one of Embodiments 1-3, so they are not described again.

[0051] Embodiment 5:

[0052] An impact-resistant concrete cover plate for a highway is improved on the basis of any one of embodiments 1-4, wherein the thickness of the concrete cover plate body 1 is 2 cm-2.5 cm. The length of the concrete cover plate body 1 is 73 cm or 78 cm, the width is 49 cm, and the thickness is preferably 2 cm, which is thinner than the traditional concrete cover plate, thereby reducing the weight. At the same time, the impact-resistant interlayer 3 inside the concrete cover plate body 1 can ensure the impact resistance of the concrete cover plate body 1 while further reducing the weight of the concrete cover plate body 1.

[0053] The other parts of this embodiment are the same as any one of Embodiments 1-4, so they will not be repeated here.

[0054] The above are only preferred embodiments of the present invention and are not intended to limit the present invention in any form. Any simple modifications or equivalent changes made to the above embodiments based on the technical essence of the present invention fall within the protection scope of the present invention.

Claims

1. An impact-resistant concrete cover plate for a highway, comprising a concrete cover plate body (1), characterized in that: A reinforcing rib assembly (2) is provided at the middle position inside the concrete cover plate body (1); an impact-resistant interlayer (3) is pre-embedded on the upper and lower sides of the reinforcing rib assembly (2); an impact-resistant fiber mesh (4) is provided on the side of the impact-resistant interlayer (3) close to and / or away from the reinforcing rib assembly (2); and an anti-collision corner plate (5) is provided at the outer corner of the concrete cover plate body (1).

2. The impact-resistant concrete cover plate for highway according to claim 1, characterized in that: The impact-resistant interlayer (3) comprises an impact-resistant foam inner core (31) and a reinforcing fiber mesh (32); the interior of the reinforcing fiber mesh (32) is filled with at least one impact-resistant foam inner core (31); one side of the impact-resistant foam inner core (31) is in contact with the reinforcing rib assembly (2).

3. The impact-resistant concrete cover plate for highway according to claim 2, characterized in that: The reinforcing fiber web (32) includes an organic fiber web and / or an inorganic fiber web.

4. The impact-resistant concrete cover plate for highway according to any one of claims 1 to 3, characterized in that: The reinforcing rib assembly (2) comprises a middle reinforcing rib (21) and a reinforcing corner rib (22); the middle reinforcing rib (21) is arranged at a middle position inside the concrete cover plate body (1); and reinforcing corner ribs (22) extending towards the corners of the concrete cover plate body (1) are arranged at the upper and lower edges of the middle reinforcing rib (21).

5. The impact-resistant concrete cover plate for highway according to claim 4, characterized in that: An impact-resistant fiber mesh (4) and an impact-resistant interlayer (3) are laid on the upper and lower sides of the middle reinforcing rib (21), and the impact-resistant fiber mesh (4) and the impact-resistant interlayer (3) are both located between the reinforcing angle ribs (22) on both sides.

6. The impact-resistant concrete cover plate for highway according to claim 5, characterized in that: The exterior of the middle reinforcing rib (21) and the reinforcing angle rib (22) are both wrapped with steel fiber bundles, basalt fiber bundles, or polypropylene fiber bundles.

7. The impact-resistant concrete cover plate for highway according to any one of claims 1 to 3, characterized in that: The impact-resistant fiber web (4) comprises an organic fiber web and / or an inorganic fiber web.

8. The impact-resistant concrete cover plate for highway according to claim 7, characterized in that: The impact-resistant fiber mesh (4) is any one of a copper-plated steel fiber mesh, a polypropylene fiber mesh, and a basalt fiber mesh.

9. The impact-resistant concrete cover plate for highway according to any one of claims 1 to 3, characterized in that: The thickness of the concrete cover plate body (1) is 2 cm-2.5 cm.

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