Anti-seismic device for reinforcing old bridge

Abstract

The utility model discloses an anti-seismic device for old bridge reinforcement, which comprises an old bridge cover beam, the bottom of the old bridge cover beam is fixedly connected with a pier stud, the two sides of the top of the old bridge cover beam are fixedly connected with fixing plates, and the bottom of the old bridge cover beam is provided with a supporting plate. Pressure is borne through the movable plate, the movable plate is supported through the connecting rod, the connecting rod can deform the reinforcing plate through the fixing sleeve to absorb energy, then the movable plate moves downwards to drive the connecting rod to move downwards, the pressing plate is pressed, and supporting, absorbing and buffering energy can be achieved through the spring; buffering is carried out through the multiple supporting plates, the stability of the old bridge cover beam can be guaranteed, and the problems that according to an anti-seismic device, only an elastic plate is adopted for springback buffering, but the springback effect of the elastic plate is limited, when the elastic plate is impacted by strong force, the elastic plate can deform, safety is low, and efficient buffering anti-seismic supporting is not convenient are solved.

Description

Technical Field

[0001] The utility model relates to the technical field of reinforcing old bridges, in particular to an anti-seismic device used for reinforcing old bridges. Background Art

[0002] Old bridges have multiple meanings and application scenarios: On the one hand, in the field of construction, old bridges refer to bridges that have been in use for a long time. These bridges may need to be reinforced or repaired due to poor durability, aging, improper design or poor construction quality. There are many reinforcement methods for these old bridges, such as cross-section reinforcement, replacement concrete reinforcement, external prestressed reinforcement, and steel plate reinforcement. These methods are designed to improve the bearing capacity and performance of bridges and ensure the safety and reliability of bridges. In addition, the reinforcement cost of old bridges is usually higher than that of new bridges, but the reinforced bridges can extend their service life and reduce the cost of maintenance and repairs, which is cost-effective in the long run.

[0003] After searching, the patent announcement number is CN215857305U. The utility model provides a seismic device for reinforcing old bridges, which relates to the technical field of bridge seismic resistance. The seismic device for reinforcing old bridges includes piers and cap beams, both sides of the cap beams are fixedly connected with blocks, the outer surface of the piers is fixedly connected with fixed plates, the lower surface of the fixed plates is fixedly connected with supporting legs, and both sides of the fixed plates are provided with seismic components, the number of the seismic components is at least six groups, the number of seismic components on one side of the fixed plate is consistent with the number of seismic components on the other side of the fixed plate and the positions correspond, and the seismic components on the same side of the fixed plate are distributed at equal intervals; the fixed plates and the supporting legs can connect multiple piers together, so that the piers can stably support the cap beam, and when the cap beam vibrates, the seismic components are squeezed to one side, and the elastic plate undergoes elastic deformation, thereby effectively improving the stability and seismic resistance of the piers and the cap beam.

[0004] The above-mentioned prior art solutions have the following defects: the seismic device only uses an elastic plate for rebound buffering, but the rebound effect of the elastic plate is limited. When subjected to a strong impact, the elastic plate will be deformed, which has a relatively low safety and is not convenient for efficient buffering and seismic support. Utility Model Content

[0005] In order to solve the problems raised in the above-mentioned background technology, the purpose of the utility model is to provide a seismic device for reinforcing old bridges, which has the advantage of excellent seismic effect and solves the problem that the seismic device only uses elastic plates for rebound buffering, but the rebound effect of the elastic plates is limited. When subjected to strong impact, the elastic plates will be deformed, resulting in relatively low safety and inconvenience for efficient buffering and seismic support.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: an anti-seismic device for reinforcing an old bridge, comprising an old bridge cover beam, the bottom of the old bridge cover beam is fixedly connected to a pier, both sides of the top of the old bridge cover beam are fixedly connected to fixing plates, a support plate is arranged at the bottom of the old bridge cover beam, both sides of the support plate are fixedly connected to reinforcing plates, the top of the reinforcing plate is fixedly connected to a protective plate, the top of the support plate is provided with a buffer assembly, and the inner side of the reinforcing plate is provided with a connecting assembly.

[0007] As a preferred embodiment of the utility model, the buffer assembly includes a bracket, the bracket is fixedly connected to the top of the support plate, the inner side of the bracket is slidably connected to a clamping plate, the bottom of the clamping plate is fixedly connected to a spring, and the bottom of the spring is fixedly connected to the top of the support plate.

[0008] As a preferred embodiment of the utility model, the connecting assembly includes a connecting rod, which is located at the top of the support plate, the outer side of the connecting rod is movably connected to a fixing sleeve through an axle pin, the outer side of the fixing sleeve is fixedly connected to the inner side of the reinforcing plate, a movable plate is provided on the top of the support plate, the outer side of the movable plate is movably connected to the inner side of the connecting rod, the bottom of the movable plate is fixedly connected to a clamping rod, the bottom of the clamping rod passes through the inner side of the bracket and is fixedly connected to the top of the clamping plate.

[0009] As a preferred embodiment of the present invention, both sides of the top of the bracket are fixedly connected with buffer pads, and the buffer pads are used in conjunction with the movable plate.

[0010] As a preferred embodiment of the present invention, the movable plate is used in conjunction with an old bridge cover beam, and the number of the movable plates is four.

[0011] As a preferred embodiment of the present invention, there are several springs, and the springs are used in conjunction with the moving plate.

[0012] As a preferred embodiment of the present invention, the number of the support plates is four, and the support plates are used in conjunction with the old bridge cover beam.

[0013] Compared with the prior art, the beneficial effects of the utility model are as follows:

[0014] 1. The utility model is provided with a movable plate to bear pressure, and the movable plate is supported by a connecting rod. The connecting rod can strengthen the plate through a fixed sleeve to deform and absorb energy, and then the movable plate moves downward to drive the connecting rod downward to press the clamping plate, and can absorb buffering energy through spring support. Through multiple support plates for buffering, the stability of the old bridge cover beam can be guaranteed, and the seismic device solves the problem that only an elastic plate is used for rebound buffering, but the rebound effect of the elastic plate is limited. When subjected to a strong impact, the elastic plate will be deformed, the safety is relatively low, and it is not convenient to carry out efficient buffering and seismic support.

[0015] 2. The utility model can buffer the vibration force by setting the buffer component, effectively improving the buffer effect, avoiding the shaking and unstable phenomenon of the old bridge cover beam, and has excellent stability. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the structure of the utility model;

[0017] Figure 2 A three-dimensional diagram of the practical buffer assembly;

[0018] Figure 3 It is a three-dimensional diagram of the connection assembly of the utility model.

[0019] In the figure: 1. Old bridge cover beam; 2. Pier; 3. Fixed plate; 4. Support plate; 5. Reinforcement plate; 6. Protection plate; 7. Buffer assembly; 71. Bracket; 72. Pressure plate; 73. Spring; 8. Connecting assembly; 81. Connecting rod; 82. Fixed sleeve; 83. Moving plate; 84. Pressure rod; 9. Buffer pad. DETAILED DESCRIPTION

[0020] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0021] like Figures 1 to 3 As shown, the utility model provides an anti-seismic device for reinforcing an old bridge, comprising an old bridge cover beam 1, a pier 2 is fixedly connected to the bottom of the old bridge cover beam 1, fixing plates 3 are fixedly connected to both sides of the top of the old bridge cover beam 1, a support plate 4 is arranged at the bottom of the old bridge cover beam 1, reinforcing plates 5 are fixedly connected to both sides of the support plate 4, a protective plate 6 is fixedly connected to the top of the reinforcing plate 5, a buffer assembly 7 is arranged on the top of the support plate 4, and a connecting assembly 8 is arranged on the inner side of the reinforcing plate 5.

[0022] refer to Figure 2 The buffer assembly 7 includes a bracket 71, which is fixedly connected to the top of the support plate 4. A clamping plate 72 is slidably connected to the inner side of the bracket 71. A spring 73 is fixedly connected to the bottom of the clamping plate 72. The bottom of the spring 73 is fixedly connected to the top of the support plate 4.

[0023] As a technical optimization solution of the utility model, by setting the buffer component 7, the vibration force can be buffered, which effectively improves the buffer effect, can avoid the shaking and instability of the old bridge cover beam 1, and has excellent stability.

[0024] refer to Figure 3 The connecting assembly 8 includes a connecting rod 81, which is located at the top of the support plate 4. The outer side of the connecting rod 81 is movably connected to a fixing sleeve 82 through an axle pin. The outer side of the fixing sleeve 82 is fixedly connected to the inner side of the reinforcing plate 5. A movable plate 83 is provided on the top of the support plate 4. The outer side of the movable plate 83 is movably connected to the inner side of the connecting rod 81. The bottom of the movable plate 83 is fixedly connected to a clamping rod 84. The bottom of the clamping rod 84 passes through the inner side of the bracket 71 and is fixedly connected to the top of the clamping plate 72.

[0025] As a technical optimization solution of the utility model, by providing a connecting component 8, the reinforcing plates 5 can be connected, which effectively improves the safety effect of the reinforcing plates 5, has a high-efficiency buffering effect, and is convenient for users to use.

[0026] refer to Figure 3 , buffer pads 9 are fixedly connected to both sides of the top of the bracket 71, and the buffer pads 9 are used in conjunction with the moving plate 83.

[0027] As a technical optimization solution of the present invention, by providing the buffer pad 9, the movable plate 83 and the bracket 71 can be buffered and limited, which effectively improves the safety of the movable plate 83 and is convenient for users to use.

[0028] refer to Figure 3 The movable plate 83 is used in conjunction with the old bridge cover beam 1, and the number of movable plates 83 is four.

[0029] As a technical optimization solution of the present invention, by setting the number of movable plates 83 to four, the bottom of the old bridge cover beam 1 can be evenly supported, which effectively improves the stability of the old bridge cover beam 1 and is relatively safe.

[0030] refer to Figure 3 There are several springs 73 , and the springs 73 are used in conjunction with the pressing plate 72 .

[0031] As a technical optimization solution of the present invention, by setting the number of springs 73 to be a plurality, the bottom of the clamping plate 72 can be supported, which effectively improves the safety of the clamping plate 72 and facilitates use by users.

[0032] refer to Figure 3 The number of the support plates 4 is four, and the support plates 4 are used in conjunction with the old bridge cover beam 1.

[0033] As a technical optimization solution of the utility model, by setting the number of support plates 4 to four, the bottom of the old bridge cover beam 1 can be evenly supported, which effectively improves the stability of the support plate 4, avoids the support plate 4 from shaking, and has higher safety.

[0034] The working principle and use process of the utility model are as follows: during use, when the old bridge cover beam 1 is impacted, the pressure is borne by the moving plate 83, and the moving plate 83 is supported by the connecting rod 81. The connecting rod 81 can strengthen the plate 5 through the fixed sleeve 82 to deform and absorb energy. Then the moving plate 83 moves downward to drive the connecting rod 81 downward, and the clamping plate 72 is clamped. The spring 73 can be used to support and absorb buffering energy. The multiple support plates 4 are used for buffering, which can ensure the stability of the old bridge cover beam 1, thereby achieving the effect of efficient buffering and reinforcement.

[0035] To sum up: the seismic device for reinforcing old bridges solves the problem that the seismic device only uses elastic plates for rebound buffering, but the rebound effect of the elastic plates is limited. When subjected to strong impact, the elastic plates will be deformed, resulting in low safety and inconvenience in performing efficient buffering and seismic support by setting up the old bridge cover beam 1, pier 2, fixed plate 3, support plate 4, reinforcing plate 5, protective plate 6, buffer assembly 7, bracket 71, clamping plate 72, spring 73, connecting assembly 8, connecting rod 81, fixed sleeve 82, movable plate 83 and clamping rod 84.

[0036] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0037] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An anti-seismic device for reinforcing an old bridge, comprising an old bridge cap beam (1), characterized in that: The bottom of the old bridge cover beam (1) is fixedly connected to a pier column (2), both sides of the top of the old bridge cover beam (1) are fixedly connected to fixing plates (3), a support plate (4) is provided at the bottom of the old bridge cover beam (1), both sides of the support plate (4) are fixedly connected to reinforcing plates (5), the top of the reinforcing plate (5) is fixedly connected to a protective plate (6), a buffer component (7) is provided at the top of the support plate (4), and a connecting component (8) is provided on the inner side of the reinforcing plate (5).

2. The anti-seismic device for reinforcing an old bridge according to claim 1, characterized in that: The buffer assembly (7) comprises a bracket (71), the bracket (71) is fixedly connected to the top of the support plate (4), a clamping plate (72) is slidably connected to the inner side of the bracket (71), a spring (73) is fixedly connected to the bottom of the clamping plate (72), and the bottom of the spring (73) is fixedly connected to the top of the support plate (4).

3. The anti-seismic device for reinforcing an old bridge according to claim 2, characterized in that: The connecting assembly (8) comprises a connecting rod (81), wherein the connecting rod (81) is located at the top of the support plate (4), the outer side of the connecting rod (81) is movably connected to a fixing sleeve (82) via an axle pin, the outer side of the fixing sleeve (82) is fixedly connected to the inner side of the reinforcing plate (5), a movable plate (83) is arranged on the top of the support plate (4), the outer side of the movable plate (83) is movably connected to the inner side of the connecting rod (81), the bottom of the movable plate (83) is fixedly connected to a clamping rod (84), the bottom of the clamping rod (84) passes through the inner side of the bracket (71) and is fixedly connected to the top of the clamping plate (72).

4. The anti-seismic device for reinforcing an old bridge according to claim 3, characterized in that: Buffer pads (9) are fixedly connected to both sides of the top of the bracket (71), and the buffer pads (9) are used in conjunction with the moving plate (83).

5. The anti-seismic device for reinforcing an old bridge according to claim 3, characterized in that: The movable plate (83) is used in conjunction with the old bridge cover beam (1), and the number of the movable plates (83) is four.

6. The anti-seismic device for reinforcing an old bridge according to claim 2, characterized in that: The number of the springs (73) is several, and the springs (73) are used in conjunction with the pressing plate (72).

7. The anti-seismic device for reinforcing an old bridge according to claim 1, characterized in that: The number of the support plates (4) is four, and the support plates (4) are used in conjunction with the old bridge cap beam (1).

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