Self-adaptive device for preventing bumping at bridgehead

Abstract

The utility model relates to the technical field of roads and bridges, in particular to a self-adaptive device for preventing bumping at a bridgehead, which comprises a bridge body, a hard soil layer and an artificial soil layer are sequentially arranged on the right side of the bridge body from bottom to top, and a fixed comb plate is arranged on a bridge floor at the top of the bridge body. A plurality of counterbores distributed at equal intervals are formed in the left end of the fixed comb plate, and connecting bolts are arranged on the inner sides of the counterbores; the left end of the supporting plate is movably connected with a first rotating rod, the outer surface of the first rotating rod is fixedly connected with a movable comb plate which is connected with the fixed comb plate in a staggered mode, the right end of the supporting plate is provided with a connecting groove, and the inner side of the connecting groove is movably connected with a second rotating rod. Through the arrangement of the arc-shaped shell, the guide rail groove, the guide supporting rod and the connecting rod, reaction can be made after tiny sedimentation occurs, and meanwhile the effect of relieving bumping at the bridge head is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of roads and bridges, in particular to an adaptive device for preventing vehicles from jumping off a bridge head. Background Art

[0002] Bridge jumping refers to the phenomenon that uneven settlement and misalignment occur at the connection between the flexible road and the rigid structure, causing high-speed vehicles to bump and jump when passing through the bridge transition.

[0003] Typically, to support the slab, a compacted artificial soil layer (soft soil) is piled on the existing roadbed beneath the slab at the bridgehead transition. This artificial soil layer is formed later and is therefore softer than the original roadbed (hard soil layer). During the bridge's later operation, due to natural settlement, the height of the bridge deck and road surface will decrease. However, the settlement of the soft soil layer is faster than that of the hard soil layer, resulting in settlement and bridgehead vehicle bouncing. In addition, differences in rigidity and vehicle seismic performance can also cause varying degrees of bridgehead vehicle bouncing.

[0004] At present, the existing technology is to fill the settlement difference by directly installing trestle boards at the bridge head transition and laying asphalt concrete materials above the bridge head connecting road section. However, these methods only solve the problem of bridge head bouncing caused by settlement and relief. Among them, the direct installation of ordinary trestle boards has a certain lag, and it is difficult to alleviate the bridge head bouncing in a practical sense. The laying of asphalt concrete materials has a certain service life and needs to be continuously filled, which will waste a lot of manpower and material resources. For this reason, we propose an adaptive device for preventing bridge head bouncing. Utility Model Content

[0005] The purpose of this utility model is to provide an adaptive device for preventing vehicles from jumping off a bridge head, which has the advantages of effectively preventing the height difference between the bridge head and the connecting section road surface, and also taking countermeasures to the height difference, alleviating the vibration of the vehicle while driving, and thus improving driving comfort.

[0006] To achieve the above-mentioned purpose, the present invention provides the following technical solution: an adaptive device for preventing vehicle jumping at a bridge head, comprising:

[0007] The bridge body comprises a hard soil layer and an artificial soil layer arranged in sequence from bottom to top on the right side of the bridge body, a fixed comb plate is arranged on the bridge deck at the top of the bridge body, a plurality of equally spaced countersunk holes are opened on the left end of the fixed comb plate, and connecting bolts are arranged inside the countersunk holes;

[0008] A support plate, wherein the left end of the support plate is movably connected to a first rotating rod, the outer surface of the first rotating rod is fixedly connected to a movable comb plate staggered with a fixed comb plate, and the right end of the support plate is provided with a connecting groove, the inner side of the connecting groove is movably connected to a second rotating rod, and the outer surface of the second rotating rod is fixedly connected to a fixed plate;

[0009] A supporting grouting column is provided with a connecting rod at the upper end of the supporting grouting column, guide support rods are provided on both sides of the upper end of the connecting rod, an arc shell is provided between the top of the supporting grouting column and the supporting plate, and guide rail grooves are provided on both sides of the arc shell.

[0010] Preferably, the left end of the fixed comb plate is fixedly mounted on the bridge deck at the top of the bridge body by connecting bolts.

[0011] Preferably, the support grouting columns are arranged in the artificial soil layer, and the lower ends of the support grouting columns extend to the hard soil layer. At the same time, the number of the support grouting columns is five.

[0012] Preferably, the bottom of the arc shell is in an arc shape, and the top of the arc shell fits with the bottom of the support plate.

[0013] Preferably, the guide rail groove and the guide support rod are adapted to each other, and the guide support rod slides on the inner side of the guide rail groove.

[0014] Preferably, the fixing plate is fixedly connected to the artificial soil layer via long nails.

[0015] Preferably, the outer side of the supporting grouting column is provided with reinforcing fins, and the number of the reinforcing fins is multiple.

[0016] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0017] 1. The utility model can respond to slight settlement through the arrangement of the arc shell, the guide rail groove, the guide support rod and the connecting rod, and at the same time play a role in alleviating the bridge head jumping.

[0018] 2. The utility model horizontally arranges a fixed comb plate and a movable comb plate at the connection between the bridge deck of the bridge body and the support plate, wherein the fixed comb plate is installed on the bridge deck at the top of the bridge body and the bridge head through connecting bolts, and the movable comb plate is movably connected to the left end of the support plate through a first rotating rod. At the same time, the fixed plate is movably connected to the right end of the support plate through a second rotating rod, and the fixed plate is fixedly connected to the artificial soil layer through long nails, so that the device can effectively prevent the formation of grooves. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a schematic diagram of the structure of the utility model from the first perspective;

[0020] Figure 2 This is a schematic diagram of the matching structure of the support plate and the support grouting column of the utility model;

[0021] Figure 3 This is a schematic diagram of the matching structure of the movable comb plate, the support plate and the fixed plate of the utility model;

[0022] Figure 4 This is a schematic diagram of the matching structure of the supporting grouting column and the arc shell of the utility model;

[0023] Figure 5 This is a schematic diagram of the structure of the bridge body of the utility model after the bridge head settles.

[0024] In the figure: 1. Bridge body; 2. Countersunk hole; 3. Fixed comb plate; 4. Movable comb plate; 5. Support plate; 6. Fixed plate; 7. Artificial soil layer; 8. Hard soil layer; 9. Support grouting column; 10. Arc shell; 11. Connecting bolt; 12. First rotating rod; 13. Connecting groove; 14. Second rotating rod; 15. Guide rail groove; 16. Guide support rod; 17. Reinforcement fin; 18. Connecting rod. DETAILED DESCRIPTION

[0025] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0026] In the description of this utility model, unless otherwise specified, "plurality" means two or more; the terms "upper," "lower," "left," "right," "inner," "outer," "front end," "rear end," "head," "tail," etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings and are intended solely to facilitate the description of this utility model and simplify the description. They do not indicate or imply that the devices or components referred to must have a specific direction, be constructed, or operate in a specific direction, and therefore should not be construed as limiting this utility model. Furthermore, the terms "first," "second," "third," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0027] In the description of this utility model, it should be noted that, unless otherwise specified or limited, the terms "connected" and "connection" should be understood in a broad sense. For example, they can refer to fixed connection, detachable connection, or integral connection; mechanical connection, electrical connection; direct connection, or indirect connection through an intermediary. Those skilled in the art will understand the specific meanings of the above terms in this utility model based on the specific circumstances.

[0028] It should be noted that the bridge body 1, countersunk hole 2, fixed comb plate 3, movable comb plate 4, support plate 5, fixed plate 6, artificial soil layer 7, hard soil layer 8, support grouting column 9, arc shell 10, connecting bolt 11, first rotating rod 12, connecting groove 13, second rotating rod 14, guide rail groove 15, guide support rod 16, reinforcing fin 17 and connecting rod 18 components of this application are all universal standard parts or components known to technical personnel in this field, and their structures and principles can be known to technical personnel in this field through technical manuals or through conventional experimental methods, and the connection with the power supply circuit adopts the conventional connection method in the prior art, which will not be described in detail here.

[0029] Example 1

[0030] See also Figure 1-Figure 5 As shown, the utility model provides a technical solution: an adaptive device for preventing vehicle jumping at a bridge head, comprising: a bridge body 1, a support plate 5, and a support grouting column 9;

[0031] The right side of the bridge body 1 is provided with a hard soil layer 8 and an artificial soil layer 7 in sequence from bottom to top. A fixed comb plate 3 is provided on the bridge deck at the top of the bridge body 1. The left end of the fixed comb plate 3 is provided with a plurality of equally spaced countersunk holes 2. The inner side of the countersunk holes 2 is provided with a connecting bolt 11. The left end of the fixed comb plate 3 is fixedly installed on the bridge deck at the top of the bridge body 1 by the connecting bolt 11. The left end of the support plate 5 is movably connected to the first rotating rod 12. The outer surface of the first rotating rod 12 is fixedly connected to the movable comb plate 4 staggered with the fixed comb plate 3. The right end of the support plate 5 is provided with a connecting groove 13. The inner side of the connecting groove 13 is movably connected to the second rotating rod 14. The outer surface of the second rotating rod 14 is fixedly connected to the fixed plate 6. The fixing plate 6 is fixedly connected to the artificial soil layer 7 by long nails, the support grouting column 9 is arranged in the artificial soil layer 7, and the lower end of the support grouting column 9 extends to the hard soil layer 8. At the same time, the number of the support grouting columns 9 is five, and the upper end of the support grouting column 9 is provided with a connecting rod 18, and guide support rods 16 are provided on both sides of the upper end of the connecting rod 18. An arc shell 10 is provided between the top of the support grouting column 9 and the support plate 5. The bottom of the arc shell 10 is arc-shaped, and the top of the arc shell 10 is fitted with the bottom of the support plate 5. Guide rail grooves 15 are opened on both sides of the arc shell 10, and the guide rail grooves 15 are adapted to the guide support rods 16, and the guide support rods 16 slide on the inner side of the guide rail grooves 15.

[0032] This technical solution: Use detection radar to detect the position of the void in the slab of the damaged bridge, mark the position of the void on the surface of the slab and measure the depth of the void and the hard soil layer 8. Then, use the measured depth of the void and the hard soil layer 8 to preset five grouting hole positions, whose length is extended to the hard soil layer 8, and the grouting area passes through the artificial soil layer 7. Then, fill the grouting holes with slurry to form supporting grouting columns 9, thereby ensuring the supporting capacity of the supporting grouting columns 9, preventing the bridge head of the bridge body 1 from having a height difference with the connecting section road surface, and through the arrangement of the arc shell 10, the guide rail groove 15, the guide support rod 16 and the connecting rod 18, it can react after a slight settlement occurs. The invention can also play a role in alleviating vehicle jumping at the bridge head. A fixed comb plate 3 and a movable comb plate 4 are horizontally arranged at the connection between the bridge deck of the bridge head of the bridge body 1 and the support plate 5, wherein the fixed comb plate 3 is installed on the bridge deck at the top of the bridge head of the bridge body 1 through a connecting bolt 11, and the movable comb plate 4 is movably connected to the left end of the support plate 5 through a first rotating rod 12. At the same time, the fixed plate 6 is movably connected to the right end of the support plate 5 through a second rotating rod 14, and the fixed plate 6 is fixedly connected to the artificial soil layer 7 through a long nail. If it is an ordinary panel here, a groove will be generated between the panel and the bridge head of the bridge body 1 after the bridge head of the bridge body 1 and the road surface settle. However, this device can well prevent the generation of grooves (specifically, Figure 5 shown).

[0033] Example 2

[0034] On the basis of embodiment 1, the present invention is as follows Figure 2 and Figure 4 As shown, it is disclosed that the outer side of the supporting grouting column 9 is provided with a plurality of reinforcing fins 17 .

[0035] This technical solution: by strengthening the setting of the fins 17, they can be placed in sequence when supporting the grouting columns 9 for grouting, thereby strengthening the supporting capacity of the supporting grouting columns 9 and ensuring that the height of the bridge body 1 and the connecting section road surface remains unchanged.

[0036] It is important to note that the construction and arrangement of the present application shown in a number of different exemplary embodiments are merely illustrative. Although only a few embodiments are described in detail in this disclosure, it should be readily understood by those who refer to this disclosure that many modifications are possible (e.g., the size, scale, structure, shape and proportion of various elements, and parameter values ​​(e.g., temperature, pressure, etc.), mounting arrangements, use of materials, colors, directional changes, etc.) without departing substantially from the novel teachings and advantages of the subject matter described in this application. For example, an element shown as integrally formed may be composed of multiple parts or elements, the position of the element may be inverted or otherwise changed, and the nature or number or position of the discrete elements may be altered or changed. Therefore, all such modifications are intended to be included within the scope of the present invention. The order or sequence of any process or method steps may be changed or reordered according to alternative embodiments. In the claims, any "means plus function" clause is intended to cover the structure of performing the function described herein, and is not only structurally equivalent but also an equivalent structure. Without departing from the scope of the present invention, other substitutions, modifications, changes and omissions may be made in the design, operating conditions and arrangement of the exemplary embodiments. Therefore, the present invention is not limited to the specific embodiments, but extends to various modifications that still fall within the scope of the appended claims.

[0037] Additionally, in order to provide a concise description of example embodiments, all features of an actual embodiment (ie, those features that are not relevant to the best mode presently contemplated for carrying out the invention or those that are not relevant to implementing the invention) may not be described.

[0038] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the utility model, rather than to limit the scope of protection of the utility model. Although the utility model has been described in detail with reference to the preferred embodiments, ordinary technicians in this field should understand that the technical solution of the utility model can be modified or replaced by equivalents without departing from the essence and scope of the technical solution of the utility model.

Claims

1. An adaptive device for preventing vehicle jumping at a bridge head, characterized in that: include: A bridge body (1), wherein a hard soil layer (8) and an artificial soil layer (7) are sequentially arranged on the right side of the bridge body (1) from bottom to top, a fixed comb plate (3) is arranged on the bridge deck at the top of the bridge body (1), a plurality of countersunk holes (2) distributed at equal intervals are opened at the left end of the fixed comb plate (3), and connecting bolts (11) are arranged inside the countersunk holes (2); A support plate (5), the left end of the support plate (5) is movably connected to a first rotating rod (12), the outer surface of the first rotating rod (12) is fixedly connected to a movable comb plate (4) staggeredly connected to a fixed comb plate (3), the right end of the support plate (5) is provided with a connecting groove (13), the inner side of the connecting groove (13) is movably connected to a second rotating rod (14), and the outer surface of the second rotating rod (14) is fixedly connected to a fixed plate (6); A support grouting column (9) is provided with a connecting rod (18) at the upper end of the support grouting column (9), guide support rods (16) are provided on both sides of the upper end of the connecting rod (18), a circular arc shell (10) is provided between the top of the support grouting column (9) and the support plate (5), and guide rail grooves (15) are provided on both sides of the circular arc shell (10).

2. The adaptive device for preventing vehicle jumping at a bridge head according to claim 1, characterized in that: The left end of the fixed comb plate (3) is fixedly mounted on the bridge deck at the top of the bridge body (1) via a connecting bolt (11).

3. The adaptive device for preventing vehicle jumping at a bridge head according to claim 1, characterized in that: The support grouting column (9) is arranged in the artificial soil layer (7), and the lower end of the support grouting column (9) extends to the hard soil layer (8). Meanwhile, the number of the support grouting columns (9) is five.

4. The adaptive device for preventing vehicle jumping at a bridge head according to claim 1, characterized in that: The bottom of the circular arc shell (10) is in the shape of a circular arc, and the top of the circular arc shell (10) fits the bottom of the support plate (5).

5. The adaptive device for preventing vehicle jumping at a bridge head according to claim 1, characterized in that: The guide rail groove (15) and the guide support rod (16) are matched, and the guide support rod (16) slides on the inner side of the guide rail groove (15).

6. The adaptive device for preventing vehicle jumping at a bridge head according to claim 1, characterized in that: The fixing plate (6) is fixedly connected to the artificial soil layer (7) via long nails.

7. The adaptive device for preventing vehicle jumping at a bridge head according to claim 1, characterized in that: The outer side of the supporting grouting column (9) is provided with a reinforcing fin (17), and the number of the reinforcing fins (17) is multiple.

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