An adaptive device for alleviating bridge bump

Abstract

The present application relates to the technical field of road and bridge, and especially relates to a self-adaptive device capable of reducing bumping at bridge head, which comprises a fixed comb plate and a movable comb plate arranged horizontally on a bridge deck, and the fixed comb plate is fixedly connected with the bridge deck through long nails; in an initial state, the tooth bars of the fixed comb plate and the tooth bars of the movable comb plate are tightly and staggeringly connected; a supporting plate is arranged on the side of the movable comb plate away from the fixed comb plate, the movable comb plate is movably connected with the supporting plate through a screw rod, one side of the supporting plate is provided with a fixed plate, the supporting plate is movably connected with the fixed plate through a screw rod, the fixed plate is fixedly connected with a soft soil foundation through long nails, and the soft soil foundation comprises a base layer and a surface layer arranged on the base layer; a regulating device is arranged below the supporting plate, and the regulating device comprises a prefabricated plate, a circular arc shell arranged on the prefabricated plate and a supporting column. The present application can self-adaptively relieve the height difference between the bridge head and the connecting section of the road surface, relieve the shock of vehicle driving, and further improve the comfort of driving.

Description

Technical Field

[0001] This invention relates to the field of road and bridge technology, and in particular to an adaptive device for mitigating bridge approach slab settlement. Background Technology

[0002] The main causes of bridge approach slab settlement include uneven settlement, abrupt changes in stiffness, and vehicle speed and vibration resistance. In urban road conditions, the primary cause is uneven settlement at the connection between the flexible road surface and the rigid structure, leading to misalignment. Differences exist in the composition, stiffness, strength, and expansion / contraction properties of bridges, roadbeds, and pavements, and stress concentration easily forms at the bridge approach connection. Under the influence of vehicle loads, structural weight, and natural factors, both the bridge and the road settle simultaneously, but the amount of settlement differs significantly, with the road settling much more than the bridge, creating misalignment and causing bridge approach slab settlement during driving.

[0003] Currently, the main methods to address this hazard are to use overlapping slabs or add asphalt concrete to the road surface to fill the settlement difference. However, the effect of ordinary overlapping slabs on mitigating bridge approach slab settlement is somewhat delayed, making it difficult to promptly alleviate or reduce the bumpy feeling experienced by vehicles. While adding asphalt concrete to fill the gaps can mitigate bridge approach misalignment to some extent, it is not only wasteful of manpower and resources but also requires time to fill the road surface gaps, which significantly disrupts normal traffic flow. Therefore, the above-mentioned existing measures are not ideal solutions to the hazard of bridge approach slab settlement. Summary of the Invention

[0004] The purpose of this invention is to address the shortcomings of existing technologies by proposing an adaptive device that can mitigate bridge approach slab ...

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] An adaptive device for mitigating bridge approach slab ...

[0007] The movable comb plate has a support plate on the side away from the fixed comb plate. The movable comb plate is movably connected to the support plate by a screw. A fixed plate is provided on one side of the support plate. The support plate is movably connected to the fixed plate by a screw. The fixed plate is fixedly connected to the soft soil foundation by a long nail. The soft soil foundation includes a base layer and a surface layer provided on the base layer.

[0008] An adjustment device is provided below the support plate. The adjustment device includes a precast plate, an arc-shaped outer shell on the precast plate, and a support column. The arc-shaped outer shell is connected to the precast plate through the support column. The precast plate is placed on the base layer. A first slide rail is provided between the upper surface of the arc-shaped outer shell and the support plate. When the adaptive device is activated, the first slide rail can ensure that the support plate can slide left and right on the surface of the arc-shaped outer shell.

[0009] Preferably, the bottom of the arc-shaped outer shell is arc-shaped, and a second slide rail is provided inside the arc-shaped outer shell. A support rod is provided inside the second slide rail, and the support rod is connected to the support column through a connecting rod.

[0010] Preferably, the second slide rail is arc-shaped.

[0011] Preferably, the support rod is cylindrical and can slide within the second slide rail; when the adaptive device is activated, the arc-shaped second slide rail allows for a vertical and horizontal displacement between the arc-shaped outer shell and the support column.

[0012] By adopting the above technical solution, an adjustment device is installed under the support plate, which can serve as a buffer between the bridge and the connecting road surface. When the foundation settles, a significant height difference and misalignment will form between the bridge and the road, which can adaptively alleviate the height difference between the bridgehead and the connecting road surface, reduce the vibration of vehicles, and thus improve driving comfort.

[0013] Compared with the prior art, the present invention has the following beneficial effects:

[0014] 1. This invention provides an adjustment device installed below the connection between the bridge and the road. This device can adapt to the height difference between the road and the bridge when the road sinks, and make adjustments accordingly to allow vehicles to pass safely, thereby improving driving comfort and avoiding obvious bumps, thus solving the problem of vehicle bouncing on bridge piers.

[0015] 2. The invention is reasonably designed and has a simple structure. All materials used can be purchased on the market. The installation steps are simple, and it can be disassembled at any time if damaged, without affecting the normal passage of traffic. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0017] Figure 2 This is a schematic diagram of the adjusting device in this invention;

[0018] Figure 3 This is a schematic diagram of the initial state of the present invention;

[0019] Figure 4 This is a schematic diagram illustrating the operation of the present invention during road surface settlement. Detailed Implementation

[0020] The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings, so that those skilled in the art can better understand the advantages and features of the present invention, thereby making a clearer definition of the scope of protection of the present invention. The embodiments described in this invention are only some embodiments of the present invention, not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative effort are within the scope of protection of the present invention.

[0021] Reference Figure 1-4 An adaptive device for mitigating bridge approach slab slab slab 1 includes a fixed comb plate 5 and a movable comb plate 6 horizontally disposed on the bridge deck 1. The fixed comb plate 5 is fixedly connected to the bridge deck 1 by long nails 4. In the initial state, the teeth of the fixed comb plate 5 and the teeth of the movable comb plate 6 are tightly interlocked.

[0022] The movable comb plate 6 has a support plate 7 on the side away from the fixed comb plate 5. The movable comb plate 6 is movably connected to the support plate 7 by a screw. A fixed plate 8 is provided on one side of the support plate 7. The support plate 7 is movably connected to the fixed plate 8 by a screw. The screw ensures that the movable comb plate 6 and the support plate 7, as well as the support plate 7 and the fixed plate 8, can rotate freely within a certain range. The fixed plate 8 is fixedly connected to the soft soil foundation by a long nail 4. The soft soil foundation includes a base layer 3 and a surface layer 2 provided on the base layer 3.

[0023] Reference Figure 1 An adjustment device is provided below the support plate 7. The adjustment device includes a precast plate 9, an arc-shaped outer shell 10 disposed on the precast plate 9, and a support column 11. The arc-shaped outer shell 10 is connected to the precast plate 9 through the support column 11. The precast plate 9 is disposed on the base layer 3. A first slide rail is provided between the upper surface of the arc-shaped outer shell 10 and the support plate 7. When the adaptive device is activated, the first slide rail can ensure that the support plate 7 can slide left and right on the surface of the arc-shaped outer shell 10.

[0024] In this embodiment, an adjustment device is installed below the support plate 7, which serves as a buffer between the bridge and the connecting road surface. When the foundation settles, a significant height difference and misalignment will form between the bridge and the road. This device can adaptively mitigate the height difference between the bridgehead and the connecting road surface, reducing vehicle vibration and improving driving comfort. Simultaneously, a fixed comb plate 5 and a movable comb plate 6 are installed on the upper part of the bridge. When the support plate 7 moves the movable comb plate 6 horizontally, misalignment will occur between the comb teeth of the fixed comb plate 5 and the movable comb plate 6, but without creating a height difference with the bridge surface, thus avoiding the bumpy feeling experienced by vehicles driving on the bridge.

[0025] Specifically, refer to Figure 2 The bottom of the arc-shaped outer shell 10 is arc-shaped, and a second slide rail 12 is provided inside the arc-shaped outer shell 10. A support rod 13 is provided inside the second slide rail 12, and the support rod 13 is connected to the support column 11 through a connecting rod 14.

[0026] The second slide rail 12 is arc-shaped; the support rod 13 is cylindrical and can slide within the second slide rail 12; as shown. Figure 2-3 As shown, in practical applications, the second slide rail 12 can be located on the right side inside the arc-shaped outer shell 10. When the adaptive device is activated, the arc-shaped second slide rail 12 can cause a vertical and horizontal displacement between the arc-shaped outer shell 10 and the support column 11.

[0027] Working principle of the invention: Refer to Figures 3-4 In the initial state, the bridge deck 1, fixed comb plate 5, movable comb plate 6, support plate 7, fixed plate 8, and surface layer 2 are all flush. When the road surface subsides, the adaptive device is activated, and the support plate 7 begins to tilt under the action of the fixed plate 8, resulting in a downward movement on the upper surface of the arc-shaped outer shell 10. If the arc-shaped outer shell 10 were not used to cause this movement, there would be a height difference between the support plate 7 and the bridge. Therefore, a first slide rail is provided on the upper part of the arc-shaped outer shell 10. When the foundation settles, the fixed plate 8, which is fixed to the foundation surface, can pull the support plate 7 downward, thereby preventing a height difference between the support plate 7 and the end of the bridge.

[0028] When the support plate 7 slides downwards, it causes the movable comb plate 6 to slide horizontally, resulting in misalignment between the movable comb plate 6 and the toothed rod of the fixed comb plate 5. If this were just an ordinary plate, when there is horizontal displacement with the beam surface, the rear of the plate, which was originally flush with the beam surface, would form a groove due to this forward displacement, causing a bumpy feeling when passing vehicles encounter this groove. However, here, the movable comb plate 6 and the fixed comb plate 5 work together to prevent any height difference from occurring after the displacement.

[0029] As the support plate 7 tilts, the horizontal surface of the arc-shaped outer shell 10 will tilt towards the roadbed at an angle. The second slide rail 12 inside is used to adjust this angle so that the arc-shaped outer shell 10 will shift downward in the vertical direction, so that the end of the arc near the bridge abutment will not be raised and higher than the original horizontal line of the arc surface.

[0030] In summary, this invention solves the problem of vehicle bouncing on bridge abutments by installing an adjustment device below the connection between the bridge and the road. This adjustment device can adapt to the height difference between the road and the bridge when the road sinks, and make adjustments accordingly to allow vehicles to pass safely, thereby improving driving comfort and avoiding obvious bumps.

[0031] The descriptions and practices disclosed in this invention are readily apparent and understandable to those skilled in the art, and various modifications and refinements can be made without departing from the principles of this invention. Therefore, any modifications or improvements made without departing from the spirit of this invention should also be considered within the scope of protection of this invention.

Claims

1. An adaptive device for mitigating bridge approach slab ... It includes a fixed comb plate and a movable comb plate horizontally set on the bridge deck. The fixed comb plate is fixedly connected to the bridge deck by long nails. In the initial state, the teeth of the fixed comb plate and the teeth of the movable comb plate are tightly interlocked. The movable comb plate has a support plate on the side away from the fixed comb plate. The movable comb plate is movably connected to the support plate by a screw. A fixed plate is provided on one side of the support plate. The support plate is movably connected to the fixed plate by a screw. The fixed plate is fixedly connected to the soft soil foundation by a long nail. The soft soil foundation includes a base layer and a surface layer provided on the base layer. An adjustment device is provided below the support plate. The adjustment device includes a precast plate, an arc-shaped outer shell on the precast plate, and a support column. The arc-shaped outer shell is connected to the precast plate through the support column. The precast plate is placed on the base layer. A first slide rail is provided between the upper surface of the arc-shaped outer shell and the support plate. The bottom of the arc-shaped outer shell is arc-shaped, and a second slide rail is provided inside the arc-shaped outer shell. A support rod is provided inside the second slide rail, and the support rod is connected to the support column through a connecting rod. The second slide rail is arc-shaped; The support rod is cylindrical and can slide within the second slide rail.

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