Fabricated noise-reduction durable expansion joint device

Abstract

The utility model discloses an assembly type noise-reduction durable expansion joint device which is arranged at a gap between two adjacent bridge plates and comprises a top baffle and a bottom baffle which are connected to the two adjacent bridge plates respectively, and a first elastic cushion is laid at the position where the bottom baffle and the top baffle make contact with each other. A first deformation gap is formed between the bottom baffle and the bridge plate provided with the top baffle, a second deformation gap is formed between the top baffle and the bridge plate provided with the bottom baffle, the second deformation gap is filled with pouring sealant to form a noise reduction block, and the noise reduction block, the bridge plate and the top baffle are coplanar. The structure of an existing expansion joint is optimized, the arranged top baffle and the arranged bottom baffle are matched with each other, the width of the gap facing the road surface is reduced while the original expansion amount of the expansion joint is guaranteed, the gap facing the road surface is filled with the noise reduction blocks, vehicles can pass smoothly, and then the purposes of reducing vibration and reducing noise are achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of bridge engineering components, in particular to an assembled noise-reducing and durable expansion joint device. Background Art

[0002] Expansion joints are set on bridges to ensure that the bridge slabs can freely expand and contract in the longitudinal and transverse directions under the action of temperature changes, concrete shrinkage and creep, and live loads to prevent excessive secondary internal forces, thereby achieving the purpose of protecting the bridge. The expansion joints of bridges must not only compensate for the deformation between the two bridge slabs, but also ensure that the gap formed is as small as possible to make the vehicle travel as smoothly as possible. Even so, vehicles will still make a lot of noise when passing through the expansion joints. Analysis of the causes of the noise shows that, on the one hand, it is due to the vibration caused by the direct impact of the wheels on the expansion joints, and on the other hand, when the expansion joints are damaged during long-term use, the expansion joint components are prone to vibrate when vehicles pass by. Utility Model Content

[0003] In order to solve the above technical problems, the utility model provides an assembled noise-reducing and durable expansion joint device.

[0004] In order to achieve the above purpose, the technical solution adopted by the utility model is as follows:

[0005] An assembled noise-reducing and durable expansion joint device is arranged at the gap between two adjacent bridge plates, including a top baffle and a bottom baffle respectively connected to the two adjacent bridge plates, and a first elastic pad is laid at the position where the bottom baffle and the top baffle contact each other, so as to reduce the impact of the top baffle on the bottom baffle when a vehicle passes through the top baffle, thereby improving the service life; a first deformation gap is provided between the bottom baffle and the bridge plate on which the top baffle is installed, and a second deformation gap is provided between the top baffle and the bridge plate on which the bottom baffle is installed, so as to reduce the width of the gap facing the road surface while ensuring the original expansion and contraction amount of the expansion joint; a sealing glue is filled in the second deformation gap to form a noise reduction block, and the top surfaces of the noise reduction block, the bridge plate and the top baffle are all coplanar, so that the vehicle can pass smoothly, thereby reducing vibration and achieving the purpose of noise reduction.

[0006] Preferably, the width of the first deformation gap is equal to the width of the second deformation gap and is half the width of the gap.

[0007] Preferably, the bridge slab has a concrete anchoring area near the gap, the top of the concrete anchoring area has an assembly groove, and a fixing plate is provided inside. The top baffle plate or the bottom baffle plate is placed in the assembly groove and connected to the fixing plate by bolts.

[0008] Preferably, a second elastic pad is provided at a position of the top baffle plate or the bottom baffle plate in contact with the assembly groove to avoid the groove wall of the assembly groove.

[0009] Preferably, the top baffle includes a connecting plate in the assembly groove, and a movable plate located above the bottom baffle, and the movable plate and the connecting plate are detachably connected via a plurality of connecting structures;

[0010] The connection structure comprises a T-shaped connection groove and a connection piece, and the connection piece is detachably inserted into the connection groove.

[0011] Compared with the prior art, the utility model has the following beneficial effects:

[0012] The utility model optimizes the structure of the existing expansion joint, and the top baffle and the bottom baffle cooperate with each other, thereby reducing the width of the gap facing the road surface while ensuring the original expansion and contraction amount of the expansion joint, and filling the gap facing the road surface with noise reduction blocks to make the vehicle pass smoothly, thereby achieving the purpose of reducing vibration and noise. At the same time, when the vehicle passes, the first elastic pad is provided to reduce the impact of the top baffle on the bottom baffle, thereby reducing noise and increasing service life. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a top view assembly schematic diagram of the utility model;

[0014] Figure 2 It is a cross-sectional assembly schematic diagram of the utility model;

[0015] Figure 3 It is an exploded view of the top baffle of the utility model.

[0016] Figure identification: 1. Bridge plate, 11. Fixed plate, 2. Gap, 3. Top baffle, 3. Connecting plate, 32. Movable plate, 4. Bottom baffle, 5. First elastic pad, 6. Noise reduction block, 7. Bolt, 8. Second elastic pad, 9. Connecting structure, 91. Connecting groove, 92. Connecting part. DETAILED DESCRIPTION

[0017] In order to make the purpose, technical solutions and advantages of the utility model more clearly understood, the utility model is further described in detail below in conjunction with embodiments and drawings. The schematic implementation manner of the utility model and its description are only used to explain the utility model and are not intended to limit the utility model.

[0018] Example 1

[0019] like Figure 1-3An assembled noise-reducing and durable expansion joint device is shown, which is arranged at the gap 2 between two adjacent bridge plates 1, and includes a top baffle 3 and a bottom baffle 4 respectively connected to the two adjacent bridge plates 1, and a first elastic pad 5 is laid at the portion where the bottom baffle 4 and the top baffle 3 contact each other, so that when a vehicle passes through the top baffle 3, the impact of the top baffle 3 on the bottom baffle is reduced, thereby improving the service life, a first deformation gap is provided between the bottom baffle 4 and the bridge plate 1 on which the top baffle 3 is installed, a second deformation gap is provided between the top baffle 3 and the bridge plate 1 on which the bottom baffle 4 is installed, and the second deformation gap is filled with potting glue, which is an elastomer after curing to form a noise reduction block 6, the elasticity of the noise reduction block 6 can compensate for the expansion and contraction amount of the second deformation gap, and the top surfaces of the noise reduction block 6, the bridge plate 1 and the top baffle 3 are all coplanar, so that the vehicle can pass smoothly, thereby reducing vibration and achieving the purpose of noise reduction. Specifically, the width of the first deformation gap is equal to the width of the second deformation gap, and is half the width of the gap 2. The second deformation gap is the gap facing the road surface. The top baffle 3 and the bottom baffle 4 move with the expansion and contraction deformation of the bridge plate 1, so that the width of the gap 2 changes. The width of the first deformation gap and the width of the second deformation gap change with the change of the width of the gap 2, thereby reducing the width of the gap facing the road surface while ensuring the original expansion and contraction of the gap 2. When the vehicle passes through the top baffle 3, the first elastic pad 5 is set to reduce the impact of the top baffle 3 on the bottom baffle 4, which reduces noise and improves service life. The noise reduction block 6 filled in the gap facing the road surface makes the vehicle pass smoothly, thereby achieving the purpose of reducing vibration and noise. In the specific implementation process, when the top baffle 3 is damaged, the first elastic pad 5 also reduces the vibration generated when the top baffle 3 impacts the bottom baffle 4 to achieve the effect of reducing noise. At the same time, when the first elastic pad 5 is damaged, it only needs to disassemble the top baffle 3 to be replaced, which is convenient for replacement.

[0020] As a preferred solution of the above embodiment, a concrete anchoring area is reserved in the bridge slab 1 near the gap 2. The top of the concrete anchoring area has an assembly groove and a fixing plate 11 inside. The top baffle plate 3 or the bottom baffle plate 4 is placed in the assembly groove and connected to the fixing plate 11 by bolts 7.

[0021] As a preferred solution of the above embodiment, the top baffle 3 or the bottom baffle 4 is provided with a second elastic pad 8 at the position in contact with the assembly groove, so that the top baffle 3 and the bottom baffle 4 do not directly contact the assembly groove, and when a vehicle passes, the elastic deformation ability of the second elastic pad 8 is used to protect the assembly groove from being damaged by the force transmitted by the top baffle 3 and the bottom baffle 4.

[0022] As a preferred solution of the above embodiment, the top baffle 3 includes a connecting plate 31 in the assembly groove, and a movable plate 32 located above the bottom baffle 4. The movable plate 32 is detachably connected to the connecting plate 31 through a plurality of connecting structures 9, so that the bottom baffle 4 can move in the vertical direction, thereby ensuring that the bridge plate 1 can also freely expand and contract in the longitudinal direction. At the same time, after the movable plate 32 is removed from the connecting plate 31, the first elastic pad 5 is directly exposed, which is convenient for disassembly, assembly and replacement of the first elastic pad 5. Figure 3 As shown, the connecting structure 9 includes a 'T'-shaped connecting groove 91 and a connecting member 92, and the connecting member 92 can be detachably inserted into the connecting groove 91, wherein, when the connecting groove 91 is opened on the movable plate 32, the connecting member 92 is arranged on the connecting plate 31, and when the connecting groove 91 is opened on the connecting plate 31, the connecting member 92 is arranged on the movable plate 32.

[0023] Of course, the present invention may have many other implementation modes. Without departing from the spirit and essence of the present invention, technicians familiar with the field may make various corresponding changes and deformations based on the present invention, but these corresponding changes and deformations should all fall within the scope of protection of the claims attached to the present invention.

Claims

1. An assembled noise-reducing and durable expansion joint device, arranged at a gap (2) between two adjacent bridge plates (1), characterized in that: It comprises a top baffle (3) and a bottom baffle (4) respectively connected to two adjacent bridge plates (1), and a first elastic pad (5) is laid at the position where the bottom baffle (4) and the top baffle (3) contact each other, a first deformation gap is provided between the bottom baffle (4) and the bridge plate (1) on which the top baffle (3) is installed, a second deformation gap is provided between the top baffle (3) and the bridge plate (1) on which the bottom baffle (4) is installed, and the second deformation gap is filled with potting glue to form a noise reduction block (6), and the top surfaces of the noise reduction block (6), the bridge plate (1) and the top baffle (3) are all coplanar.

2. The assembled noise-reducing and durable expansion joint device according to claim 1 is characterized in that: The width of the first deformation gap is equal to the width of the second deformation gap and is half the width of the gap (2).

3. The assembled noise-reducing and durable expansion joint device according to claim 2 is characterized in that: The bridge plate (1) has a concrete anchoring area at a position close to the gap (2), the top of the concrete anchoring area has an assembly groove, and a fixing plate (11) is provided inside, and the top baffle plate (3) or the bottom baffle plate (4) is connected to the fixing plate (11) by bolts (7) after being placed in the assembly groove.

4. The assembled noise-reducing and durable expansion joint device according to claim 3 is characterized in that: The top baffle (3) or the bottom baffle (4) is provided with a second elastic pad (8) at a position in contact with the assembly groove.

5. The assembled noise-reducing and durable expansion joint device according to claim 4 is characterized in that: The top baffle (3) comprises a connecting plate (31) located in the assembly groove, and a movable plate (32) located above the bottom baffle (4), wherein the movable plate (32) is detachably connected to the connecting plate (31) via a plurality of connecting structures (9); The connection structure (9) comprises a 'T'-shaped connection groove (91) and a connection piece (92), and the connection piece (92) is detachably inserted into the connection groove (91).

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