Bridge demolition base pavement protection device

Abstract

The utility model relates to a bridge demolition bottom pavement protection device, it includes transition layer and steel sheet layer, the transition layer is located ground, the steel sheet layer is located transition layer, the steel sheet layer includes a plurality of unit steel sheets, and the length direction of pavement is connected through the connecting component between two adjacent unit steel sheets, and the width direction of pavement is connected through the fixed component between two adjacent unit steel sheets. The application has the effect that improves the protection effect to the pavement.

Description

Technical Field

[0001] This utility model relates to the field of bridge construction, and in particular to a protective device for the bottom road surface during bridge demolition. Background Technology

[0002] During the bridge demolition construction, vehicles transporting concrete, building materials, and other materials need to frequently travel on the road surface. The road surface is easily damaged by the frequent crushing of heavy vehicles.

[0003] To protect the existing road surface, the common practice is to place steel plates directly on the road surface, with the steel plates covering the bridge's projected surface and extending 2 meters beyond it.

[0004] Because the area of ​​steel plates required for road surface is large, they are usually laid in a splicing manner for ease of transportation. When the joints between the steel plates are subjected to force, they are prone to downward squeezing, which can still easily cause crushing and damage to the road surface. Utility Model Content

[0005] To address the aforementioned technical problems, this application provides a bridge demolition bottom road surface protection device.

[0006] The technical solution for the bridge demolition bottom road surface protection device provided in this application is as follows: A bridge demolition bottom road surface protection device includes a transition layer and a steel plate layer. The transition layer is located on the ground, and the steel plate layer is located on the transition layer. The steel plate layer includes several unit steel plates. Adjacent unit steel plates are connected along the length direction of the road surface by a connecting component, and adjacent unit steel plates are connected along the width direction of the road surface by a fixing component.

[0007] Preferably, the transition layer includes a cotton pad and a rubber pad, with the cotton pad located below the rubber pad and the steel plate located above the rubber pad.

[0008] Preferably, the transition layer has at least two layers.

[0009] Preferably, the connecting assembly includes a first connecting plate, a second connecting plate, a first connecting bolt, and a second connecting bolt. A first connecting groove is formed on one side of the unit steel plate along its thickness direction, and a second connecting groove is formed on the other side of the unit steel plate along its thickness direction. The first and second connecting grooves are staggered. The first connecting grooves of two adjacent unit steel plates are aligned and connected, and the second connecting grooves of two adjacent unit steel plates are aligned and connected. The first connecting plate is located within the first connecting groove of two adjacent unit steel plates, and the second connecting plate is located within the second connecting groove of two adjacent unit steel plates. The first connecting bolt passes through the first connecting plate and is threadedly connected to the unit steel plate, and the second connecting bolt passes through the second connecting plate and is threadedly connected to the unit steel plate.

[0010] Preferably, the hole on the first connecting plate for the first connecting bolt to pass through is a countersunk hole, and the hole on the second connecting plate for the second connecting bolt to pass through is also a countersunk hole, and both the first connecting bolt and the second connecting bolt are countersunk bolts.

[0011] Preferably, the two adjacent unit steel plates spliced ​​along the width of the road surface are staggered.

[0012] Preferably, the fixing assembly includes a fixing plate one, a fixing plate two, a fixing bolt one, and a fixing bolt two. A fixing groove one is formed on one side of the unit steel plate along its thickness direction, and a fixing groove two is formed on the other side of the unit steel plate along its thickness direction. The fixing groove one is located on both sides of the unit steel plate along the width direction of the road surface, with one fixing groove one on one side located at the middle of the side of the unit steel plate, and the fixing groove one on the other side located at the two corners of the side of the unit steel plate. The fixing groove two is arranged opposite to the fixing groove one. In three adjacent unit steel plates, the fixing groove one in the middle of one unit steel plate is connected to the fixing groove one in the other... The fixing grooves at the corners of two unit steel plates connected by a connecting assembly are aligned and connected. The fixing plate is located in the fixing grooves of three adjacent unit steel plates. The fixing bolt passes through the fixing plate and is threadedly fixed to the unit steel plate. Among the three adjacent unit steel plates, the fixing groove 2 in the middle of one unit steel plate is aligned and connected with the fixing grooves 2 at the corners of the other two unit steel plates connected by the connecting assembly. The fixing plate 2 is located in the fixing grooves 2 of two adjacent unit steel plates. The fixing bolt 2 passes through the fixing plate 2 and is threadedly fixed to the unit steel plate.

[0013] Preferably, the hole on the first fixing plate through which the first fixing bolt passes is a countersunk hole, and the hole on the second fixing plate through which the second fixing bolt passes is also a countersunk hole, and both the first fixing bolt and the second fixing bolt are countersunk bolts.

[0014] In summary, this application includes at least one of the following beneficial technical effects: 1. By alternately placing cotton pads and rubber pads under the steel plate, soft support is provided between the steel plate and the road surface, avoiding direct contact between the steel plate and the road surface. With the cooperation of the connecting components and fixing components, the joints between the steel plates are less likely to be squeezed under stress, reducing the possibility of road surface damage caused by crushing and improving the protection effect of the road surface. 2. The rubber pads increase the friction between cotton pads and between cotton pads and steel plates, thereby improving the stability between the steel plate layer and the transition layer. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall structure of a bridge demolition bottom road surface protection device according to an embodiment of this application, showing the side where the connecting plate 1 and the fixing plate 1 are located.

[0016] Figure 2 This is a schematic diagram of the overall structure of a bridge demolition bottom road surface protection device according to an embodiment of this application, showing the side where the connecting plate 2 and the fixing plate 2 are located.

[0017] Figure 3 This is used to illustrate the embodiments of this application. Figure 1 A magnified structural diagram of point A in the middle.

[0018] Explanation of reference numerals in the attached drawings: 1. Transition layer; 11. Cotton pad; 12. Rubber pad; 2. Steel plate layer; 21. Unit steel plate; 211. Connecting groove one; 212. Connecting groove two; 213. Fixing groove one; 214. Fixing groove two; 3. Connecting assembly; 31. Connecting plate one; 32. Connecting plate two; 33. Connecting bolt one; 34. Connecting bolt two; 4. Fixing assembly; 41. Fixing plate one; 42. Fixing plate two; 43. Fixing bolt one; 44. Fixing bolt two. Detailed Implementation

[0019] The present invention will now be described in detail with reference to the accompanying drawings. These drawings are simplified schematic diagrams, illustrating only the basic structure of the present invention, and therefore only show the components relevant to the present invention.

[0020] This utility model discloses a bridge demolition bottom road surface protection device.

[0021] Reference Figure 1-3 The bridge demolition bottom road surface protection device includes a transition layer 1 and a steel plate layer 2. The transition layer 1 is located on the ground, and the steel plate layer 2 is located on the transition layer 1. The steel plate layer 2 includes several unit steel plates 21. Adjacent unit steel plates 21 are connected along the length of the road surface by a connecting component 3, and adjacent unit steel plates 21 are connected along the width of the road surface by a fixing component 4.

[0022] The transition layer 1 includes a cotton pad 11 and a rubber pad 12. The cotton pad 11 is located below the rubber pad 12, and the steel plate is located above the rubber pad 12. The transition layer 1 is provided with at least two layers, which is the case in this embodiment. The rubber pad 12 increases the friction between the cotton pads 11 and between the cotton pads 11 and the steel plate, thereby improving the stability between the steel plate layer 2 and the transition layer 1.

[0023] By alternately placing cotton pads 11 and rubber pads 12 under the steel plate, soft support is provided between the steel plate and the road surface, avoiding direct contact between the steel plate and the road surface. With the cooperation of connecting component 3 and fixing component 4, the joint between the steel plates is less likely to be squeezed when under stress, reducing the possibility of road surface damage caused by crushing and improving the protection effect of the road surface.

[0024] The connecting assembly 3 includes a first connecting plate 31, a second connecting plate 32, a first connecting bolt 33, and a second connecting bolt 34. One side of the unit steel plate 21 in the thickness direction has a first connecting groove 211, and the other side of the unit steel plate 21 in the thickness direction has a second connecting groove 212. The first connecting groove 211 and the second connecting groove 212 are staggered. The first connecting groove 211 of two adjacent unit steel plates 21 are aligned and connected, and the second connecting groove 212 of two adjacent unit steel plates 21 are aligned and connected. The first connecting plate 31 is located in the first connecting groove 211 of two adjacent unit steel plates 21, and the second connecting plate 32 is located in the second connecting groove 212 of two adjacent unit steel plates 21. The first connecting bolt 33 passes through the first connecting plate 31 and is threadedly connected to the unit steel plate 21. The second connecting bolt 34 passes through the second connecting plate 32 and is threadedly connected to the unit steel plate 21.

[0025] The adjacent unit steel plates 21 spliced ​​along the width of the road surface are staggered to avoid the joints being opposite each other, which would cause the corners of the unit steel plates 21 to be squeezed and damaged.

[0026] The fixing component 4 includes a fixing plate 41, a fixing plate 42, a fixing bolt 43, and a fixing bolt 44. A fixing groove 213 is formed on one side of the unit steel plate 21 along its thickness direction, and a fixing groove 214 is formed on the other side of the unit steel plate 21 along its thickness direction. The fixing groove 213 is located on both sides of the unit steel plate 21 along the width direction of the road surface, with one fixing groove 213 on one side located in the middle of the side of the unit steel plate 21, and the fixing groove 213 on the other side located at the two corners of the side of the unit steel plate 21. The fixing groove 214 is arranged opposite to the fixing groove 213. Among three adjacent unit steel plates 21, the fixing groove 213 in the middle of one unit steel plate 21 is connected to the fixing groove 214 in the other... The fixing grooves 213 at the corners of two unit steel plates 21 connected by the connecting component 3 are aligned and connected. The fixing plate 41 is located in the fixing grooves 213 of the three adjacent unit steel plates 21. The fixing bolt 43 passes through the fixing plate 41 and is threaded to the unit steel plate 21. Among the three adjacent unit steel plates 21, the fixing groove 214 in the middle of one unit steel plate 21 is aligned and connected with the fixing grooves 214 at the corners of the other two unit steel plates 21 connected by the connecting component 3. The fixing plate 42 is located in the fixing grooves 214 of the two adjacent unit steel plates 21. The fixing bolt 44 passes through the fixing plate 42 and is threaded to the unit steel plate 21.

[0027] The hole on connecting plate 31 for connecting bolt 33 to pass through is a countersunk hole, and the hole on connecting plate 32 for connecting bolt 34 to pass through is also a countersunk hole. Both connecting bolt 33 and connecting bolt 34 are countersunk bolts. The hole on fixing plate 41 for fixing bolt 43 to pass through is a countersunk hole, and the hole on fixing plate 42 for fixing bolt 44 to pass through is also a countersunk hole. Both fixing bolt 43 and fixing bolt 44 are countersunk bolts, improving the flatness of the road protection device.

[0028] The implementation principle of a bridge demolition bottom road surface protection device according to an embodiment of this application is as follows: From bottom to top, cotton pad 11, rubber pad 12, cotton pad 11, rubber pad 12, and unit steel plate 21 are laid on the bridge projection surface and at a position 2m outside the projection surface.

[0029] When connecting the unit steel plate 21, first fix one side of the steel plate layer 2 in the thickness direction by connecting plate 31 and fixing plate 41, then flip the steel plate over and fix the other side of the steel plate in the thickness direction by connecting plate 32 and fixing plate 42.

[0030] Based on the above-described preferred embodiments of this utility model, and through the foregoing description, those skilled in the art can make various changes and modifications without departing from the technical concept of this utility model. The technical scope of this utility model is not limited to the contents of the specification, but must be determined according to the scope of the claims.

Claims

1. A bridge demolition bottom road surface protection device, characterized in that: It includes a transition layer and a steel plate layer. The transition layer is located on the ground, and the steel plate layer is located on the transition layer. The steel plate layer includes several unit steel plates. Adjacent unit steel plates are connected along the length of the road surface by a connecting component, and adjacent unit steel plates are connected along the width of the road surface by a fixing component.

2. The bridge demolition bottom road surface protection device according to claim 1, characterized in that: The transition layer includes a cotton pad and a rubber pad, with the cotton pad located below the rubber pad and the steel plate located above the rubber pad.

3. The bridge demolition bottom road surface protection device according to claim 1, characterized in that: The transition layer consists of at least two layers.

4. The bridge demolition bottom road surface protection device according to claim 1, characterized in that: The connecting assembly includes a first connecting plate, a second connecting plate, a first connecting bolt, and a second connecting bolt. A first connecting groove is formed on one side of the unit steel plate along its thickness direction, and a second connecting groove is formed on the other side of the unit steel plate along its thickness direction. The first and second connecting grooves are staggered. The first connecting grooves of two adjacent unit steel plates are aligned and connected, and the second connecting grooves of two adjacent unit steel plates are aligned and connected. The first connecting plate is located within the first connecting groove of two adjacent unit steel plates, and the second connecting plate is located within the second connecting groove of two adjacent unit steel plates. The first connecting bolt passes through the first connecting plate and is threadedly connected to the unit steel plate, and the second connecting bolt passes through the second connecting plate and is threadedly connected to the unit steel plate.

5. The bridge demolition bottom road surface protection device according to claim 4, characterized in that: The hole on the first connecting plate for the first connecting bolt to pass through is a countersunk hole, and the hole on the second connecting plate for the second connecting bolt to pass through is also a countersunk hole. Both the first connecting bolt and the second connecting bolt are countersunk bolts.

6. The bridge demolition bottom road surface protection device according to claim 1, characterized in that: The adjacent unit steel plates spliced ​​along the width of the road surface are staggered.

7. The bridge demolition bottom road surface protection device according to claim 1, characterized in that: The fixing assembly includes a fixing plate one, a fixing plate two, a fixing bolt one, and a fixing bolt two. A fixing groove one is formed on one side of the unit steel plate along its thickness direction, and a fixing groove two is formed on the other side of the unit steel plate along its thickness direction. The fixing groove one is located on both sides of the unit steel plate along the width direction of the road surface, with one fixing groove one on one side located in the middle of the side of the unit steel plate, and the fixing groove one on the other side located at the two corners of the side of the unit steel plate. The fixing groove two is arranged opposite to the fixing groove one. Among three adjacent unit steel plates, the fixing groove one in the middle of one unit steel plate is connected to the fixing groove one on the other two... The fixing slots at the corners of the unit steel plates connected by the connecting components are aligned and connected. The fixing plate is located in the fixing slots of the three adjacent unit steel plates. The fixing bolt passes through the fixing plate and is threaded to the unit steel plate. Among the three adjacent unit steel plates, the fixing slot 2 in the middle of one unit steel plate is aligned and connected with the fixing slots 2 at the corners of the other two unit steel plates connected by the connecting components. The fixing plate 2 is located in the fixing slots 2 of the two adjacent unit steel plates. The fixing bolt 2 passes through the fixing plate 2 and is threaded to the unit steel plate.

8. The bridge demolition bottom road surface protection device according to claim 7, characterized in that: The hole on the first fixing plate for the first fixing bolt to pass through is a countersunk hole, and the hole on the second fixing plate for the second fixing bolt to pass through is also a countersunk hole. Both the first fixing bolt and the second fixing bolt are countersunk bolts.

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