Expansion joint and asphalt pavement seamless transition structure

Abstract

The utility model discloses a kind of expansion joint and asphalt pavement seamless transition structure, it includes recess, rectangular groove and screw groove: the inner cavity of the recess and screw groove is respectively provided with rectangular metal clamping block and screw, the surface of the screw is equipped with strip hole plate, the strip hole plate is welded between rectangular metal clamping block, the surface screw thread connection of the screw has nut block, the inner wall between the screw and screw groove is collectively filled with plant glue layer.The utility model fixes screw in the inner cavity of screw groove by plant glue layer, subsequently rectangular metal clamping block is placed in the inner cavity of recess, then it is fixed between screw and rectangular metal clamping block by the cooperation of strip hole plate and nut block, i.

Description

Technical Field

[0001] This utility model belongs to the field of expansion joint technology, and in particular relates to a seamless transition structure between expansion joints and asphalt pavement. Background Technology

[0002] Near bridge expansion joints, asphalt pavement often cracks, sinks, or has uneven surfaces, causing vehicles to bump around.

[0003] Therefore, a transition zone with gradually changing stiffness and strong deformation capacity needs to be created between the rigid expansion joint and the flexible asphalt pavement to eliminate the height difference between the top surface of the expansion joint and the adjacent asphalt pavement, absorb the deformation caused by the free expansion and contraction of the bridge, and effectively transfer the wheel load from the flexible asphalt pavement to the rigid expansion joint device. A seamless transition structure between the expansion joint and the asphalt pavement was designed. The asphalt pavement layer and the expansion joint edge beam can be reinforced by connectors to improve the tightness and integrity of the connection between the two, so that the two can be seamlessly transitioned, thereby avoiding the occurrence of gaps between them. Utility Model Content

[0004] The purpose of this utility model is to provide a seamless transition structure between expansion joints and asphalt pavement. By using connectors to reinforce the asphalt pavement layer and the expansion joint edge beam, the tightness and integrity of the connection between the two are improved, allowing for a seamless transition and preventing gaps from occurring between them, thereby solving the technical problems mentioned in the background art.

[0005] The technical solution of this utility model to solve the above-mentioned technical problems is as follows: A seamless transition structure between an expansion joint and an asphalt pavement includes a groove, a rectangular groove, and a screw groove. A rectangular metal block and a screw are respectively provided in the inner cavities of the groove and the screw groove. A strip-shaped perforated plate is sleeved on the surface of the screw. The strip-shaped perforated plate is welded to the rectangular metal block. A nut block is threaded onto the surface of the screw. A rebar adhesive layer is filled between the screw and the inner wall of the screw groove. A structural adhesive layer is filled in the inner cavity of the rectangular groove. An expansion joint edge beam is provided on the outer side of the rectangular metal block. A sealing rubber strip is provided on the surface of the expansion joint edge beam. An adhesive layer is applied between the sealing rubber strip and the expansion joint edge beam.

[0006] Preferably, the screw has a support bar integrally formed on its surface.

[0007] Preferably, an elastic washer is fitted on the surface of the screw, and the elastic washer is located between the strip-shaped perforated plate and the nut block.

[0008] Preferably, a rubber pad is adhered to the inner wall of the groove.

[0009] Preferably, the structural adhesive layer is an asphalt paving layer.

[0010] Preferably, the groove is formed on the surface of the expansion joint edge beam, and both the rectangular groove and the screw groove are formed on the top of the asphalt pavement.

[0011] The beneficial effects of this utility model are:

[0012] This utility model fixes the screw rod in the inner cavity of the screw rod groove through the anchoring adhesive layer, then places the rectangular metal clip in the inner cavity of the groove, and then fixes the screw rod and the rectangular metal clip together by the cooperation of the strip-shaped perforated plate and the nut block. This achieves the purpose of reinforcing the asphalt pavement layer and the expansion joint edge beam through the connector, so that the two can be seamlessly transitioned, and the connection tightness and integrity of the two are improved.

[0013] 2. By setting up support bars, this utility model increases the surface area of ​​the screw, improves the tightness of the connection between the screw and the anchoring adhesive layer, and thus improves the stability of the screw's position in the screw groove cavity;

[0014] 3. By setting the elastic washer, this utility model increases the friction on the nut block, avoids the latter from loosening due to external vibration, and thus improves the stability of the nut block locking the strip hole plate.

[0015] 4. This utility model seals the top of the groove cavity by setting a rubber pad, which avoids unevenness at the top of the groove and thus reduces wear on the car tires. Attached Figure Description

[0016] in:

[0017] Figure 1 This is a schematic diagram of the structure of one embodiment of the present utility model;

[0018] Figure 2 This is one embodiment of the present utility model. Figure 1 A magnified view of point A in the middle;

[0019] Figure 3 This is one embodiment of the present utility model. Figure 1 A magnified view of point B in the middle;

[0020] Figure 4 This is a three-dimensional schematic diagram of a strip-shaped perforated plate according to an embodiment of the present invention;

[0021] Figure 5 This is a three-dimensional schematic diagram of a rubber pad according to an embodiment of the present invention.

[0022] The attached diagram lists the components represented by each number as follows:

[0023] 1. Groove; 2. Rectangular groove; 3. Screw groove; 4. Rectangular metal block; 5. Screw; 6. Strip-shaped perforated plate; 7. Nut block; 8. Rebar adhesive layer; 9. Support strip; 10. Elastic washer; 11. Rubber pad; 12. Structural adhesive layer; 13. Expansion joint edge beam; 14. Sealing rubber strip; 15. Adhesive layer. Detailed Implementation

[0024] In the following description, embodiments of the expansion joint and asphalt pavement seamless transition structure of the present invention will be described with reference to the accompanying drawings. Example 1

[0025] Figure 1-5 This invention illustrates a seamless transition structure between an expansion joint and an asphalt pavement according to an embodiment of the present invention. The structure includes a groove 1, a rectangular groove 2, and a screw groove 3. Rectangular metal blocks 4 and screws 5 are respectively disposed within the inner cavities of the groove 1 and the screw groove 3. A perforated strip 6 is fitted onto the surface of the screw 5, and the perforated strip 6 is welded to the rectangular metal blocks 4. A nut block 7 is threaded onto the surface of the screw 5. A rebar adhesive layer 8 is filled between the screw 5 and the inner wall of the screw groove 3. A support strip 9 is integrally formed on the surface of the screw 5. The support strip 9 increases the surface area of ​​the screw 5, improves the tightness of the connection between the screw 5 and the rebar adhesive layer 8, and thus enhances the screw's stability. 5. Stability of the position placed in the inner cavity of the screw groove 3: The surface of the screw 5 is fitted with an elastic washer 10, which is located between the strip-shaped perforated plate 6 and the nut block 7. The setting of the elastic washer 10 increases the friction of the nut block 7, preventing the latter from loosening due to external force vibration, thereby improving the stability of the nut block 7 locking the strip-shaped perforated plate 6. The inner cavity of the rectangular groove 2 is filled with a structural adhesive layer 12. An expansion joint side beam 13 is set on the outer side of the rectangular metal clip 4. A sealing rubber strip 14 is set on the surface of the expansion joint side beam 13. An adhesive layer 15 is applied between the sealing rubber strip 14 and the expansion joint side beam 13. Example 2

[0026] Figure 1-5This invention illustrates a seamless transition structure between an expansion joint and an asphalt pavement according to an embodiment of the present invention. The structure includes a groove 1, a rectangular groove 2, and a screw groove 3. Rectangular metal blocks 4 and screws 5 are respectively disposed within the inner cavities of the groove 1 and the screw groove 3. A perforated strip 6 is fitted onto the surface of the screw 5. The perforated strip 6 is welded to the rectangular metal blocks 4. A nut block 7 is threaded onto the surface of the screw 5. A rebar adhesive layer 8 is filled between the screw 5 and the inner wall of the screw groove 3. A rubber pad 11 is adhered to the inner wall of the groove 1. The rubber pad 11 is... A rubber pad 11 is pasted on the inner wall of the groove 1. The rubber pad 11 is a rubber pad. The inner cavity of the rectangular groove 2 is filled with a structural adhesive layer 12, which is an asphalt paving layer. An expansion joint edge beam 13 is set on the outer side of the rectangular metal block 4. A sealing rubber strip 14 is set on the surface of the expansion joint edge beam 13. An adhesive layer 15 is applied between the sealing rubber strip 14 and the expansion joint edge beam 13. The groove 1 is opened on the surface of the expansion joint edge beam 13. The rectangular groove 2 and the screw groove 3 are both opened on the top of the asphalt pavement.

[0027] Working principle: When using this utility model, the user opens a rectangular groove 2 and a screw groove 3 in the asphalt pavement, then cleans the inner cavity of the rectangular groove 2 and the screw groove 3. Next, the screw 5 is fixed in the inner cavity of the screw groove 3 by the anchoring adhesive layer 8. Then, the rectangular metal clip 4 is placed in the inner cavity of the groove 1. Then, the strip-shaped perforated plate 6 is sleeved on the surface of the screw 5 and welded to the rectangular metal clip 4. Then, the strip-shaped perforated plate 6 is fixed by the threaded connection of the nut block 7 on the surface of the screw 5. At this time, the strip-shaped perforated plate 6 fixes the screw 5 and the rectangular metal clip 4. Then, the structural adhesive layer 12 is injected into the inner cavity of the rectangular groove 2, realizing the reinforcement between the asphalt pavement layer and the expansion joint edge beam through the connector, so that the two can be seamlessly transitioned, improving the tightness and integrity of the connection between the two.

[0028] In summary, this seamless transition structure between the expansion joint and the asphalt pavement is achieved by fixing the screw 5 in the inner cavity of the screw groove 3 through the anchoring adhesive layer 8, then placing the rectangular metal clip 4 in the inner cavity of the groove 1, and finally fixing the screw 5 and the rectangular metal clip 4 together through the cooperation of the strip-shaped perforated plate 6 and the nut block 7. This achieves the purpose of reinforcing the asphalt pavement layer and the expansion joint edge beam through the connector, so that the two can be seamlessly transitioned, improving the connection tightness and overall integrity.

Claims

1. A seamless transition structure between an expansion joint and an asphalt pavement, characterized in that, The device includes a groove (1), a rectangular groove (2), and a screw groove (3): the inner cavities of the groove (1) and the screw groove (3) are respectively provided with a rectangular metal block (4) and a screw (5). The surface of the screw (5) is fitted with a strip-shaped perforated plate (6). The strip-shaped perforated plate (6) is welded to the rectangular metal block (4). The surface of the screw (5) is threaded with a nut block (7). The screw (5) and the inner wall of the screw groove (3) are filled with a rebar adhesive layer (8). The inner cavity of the rectangular groove (2) is filled with a structural adhesive layer (12). The outer side of the rectangular metal block (4) is provided with an expansion joint side beam (13). The surface of the expansion joint side beam (13) is provided with a sealing rubber strip (14). The sealing rubber strip (14) and the expansion joint side beam (13) are jointly coated with an adhesive layer (15).

2. The seamless transition structure between the expansion joint and the asphalt pavement according to claim 1, characterized in that, The screw (5) has a support bar (9) integrally formed on its surface.

3. The seamless transition structure between the expansion joint and the asphalt pavement according to claim 2, characterized in that, An elastic washer (10) is fitted on the surface of the screw (5), and the elastic washer (10) is located between the strip-shaped perforated plate (6) and the nut block (7).

4. The seamless transition structure between the expansion joint and the asphalt pavement according to claim 3, characterized in that, A rubber pad (11) is attached to the inner wall of the groove (1), and the rubber pad (11) is a rubber pad.

5. The seamless transition structure between the expansion joint and the asphalt pavement according to claim 4, characterized in that, The structural adhesive layer (12) is an asphalt paving layer.

6. The seamless transition structure between the expansion joint and the asphalt pavement according to claim 5, characterized in that, The groove (1) is formed on the surface of the expansion joint side beam (13), and the rectangular groove (2) and the screw groove (3) are both formed on the top of the asphalt pavement.

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