Highway bridge reinforcing device

Abstract

The utility model relates to the technical field of bridge reinforcing, and discloses a highway bridge reinforcing device which comprises a column embracing plate fixedly connected to the outer side wall of a pier column. The base is positioned above the pile foundation and is provided with the peripheral side of the pier column; the supporting rods comprise first supporting rods with one ends hinged to the outer side wall of the column embracing plate, second supporting rods with one ends hinged to the base, and friction dampers connected with the other ends of the first supporting rods and the other ends of the second supporting rods correspondingly; the first supporting rod and the second supporting rod are coaxially and obliquely arranged and are in mutual sliding insertion connection. When the pier column vibrates to generate impact force on the column embracing plate and the supporting rod, the friction damper can achieve the supporting effect, meanwhile, friction energy consumption can be achieved, vibration generated by the pier column is reduced, and therefore the pier column is protected.

Description

Technical Field

[0001] The utility model relates to the technical field of bridge reinforcement, in particular to a highway bridge reinforcement device. Background Art

[0002] The highway bridge pile foundation reinforcement device is a structure designed to increase the strength and stability of the bridge pile foundation through mechanical means to cope with possible natural disasters or long-term load pressure.

[0003] The patent with announcement number CN220202658U discloses a highway bridge pile foundation reinforcement device. This patent can greatly improve the protection effect of the pile foundation by setting double reinforcement for the pile foundation to ensure that the pile foundation will not be completely destroyed and lose its bearing capacity. Compared with the existing pile foundation reinforcement device, the utility model has more obvious advantages in practical application and more prominent effects. However, the device does not have an energy-consuming structure, and cannot achieve a shock-absorbing effect when the pier column is vibrated. Although the patent uses the force generated between the resistance block and the ball head to reduce the impact force on the reinforced beam, when the pier column is deformed, it cannot be restored to its pre-deformation shape through the existing reinforcement structure.

[0004] In view of this, how to change the current situation that the existing pile foundation reinforcement device cannot achieve shock absorption for the pier column and repair it after deformation has become a technical problem that technical personnel in this field urgently need to solve. Utility Model Content

[0005] The utility model aims to provide a highway bridge reinforcement device to overcome the above-mentioned shortcomings.

[0006] In order to achieve the above purpose, the technical solution of the utility model is:

[0007] A highway bridge reinforcement device, comprising:

[0008] A column plate fixedly connected to the outer side wall of the pier;

[0009] A base located above the pile foundation and arranged around the pier column; and

[0010] A plurality of support rods are arranged at intervals along the circumference of the pier column, and the support rods include a first support rod with one end hinged to the outer wall of the column plate, a second support rod with one end hinged to the base, and friction dampers respectively connected to the other end of the first support rod and the other end of the second support rod, the first support rod and the second support rod are coaxially inclined and slidably plugged into each other.

[0011] Furthermore, the friction damper comprises:

[0012] A first connecting rod and a second connecting rod are respectively connected to the other end of the first support rod and the other end of the second support rod, and the adjacent ends of the first connecting rod and the second connecting rod are respectively fixedly connected with a first friction steel plate and a second friction steel plate, and the first friction steel plate and the second friction steel plate are frictionally connected along the length direction of the first support rod.

[0013] Furthermore, the first friction steel plate and the second friction steel plate are in a cylindrical structure and are plugged into each other. The first friction steel plate and the second friction steel plate are provided with a first strip hole and a round hole at relative positions on their side walls, and the first strip hole and the round hole are penetrated by bolts for fixing.

[0014] Furthermore, the friction damper also includes:

[0015] A first end plate and a second end plate are located on both sides of the first friction steel plate and the second friction steel plate, a first connecting rod and a second connecting rod are slidably connected to the first end plate and the second end plate respectively, a plurality of connecting tubes are fixedly connected between the first end plate and the second end plate, a sliding plate is slidably connected to the middle part of the connecting tube and two SMA springs are arranged at both ends of the sliding plate, wherein two ends of one of the SMA springs are respectively connected to the sliding plate and the first end plate, wherein two ends of the other SMA spring are respectively connected to the sliding plate and the second end plate; and

[0016] A first reset rod and a second reset rod are respectively vertically fixedly connected to one end of the first friction steel plate and the second friction steel plate away from each other, the first reset rod and the second reset rod are cross-arranged, the first reset rod at least passes through one of the connecting tubes and is fixedly connected to one of the sliding plates, the second reset rod at least passes through another of the connecting tubes and is fixedly connected to another of the sliding plates, and the first reset rod and the second reset rod are slidably connected along the length direction of the connecting tube.

[0017] Furthermore, four connecting tubes are provided, and second strip holes are arranged on the side walls of the connecting tubes. The first reset rod and the second reset rod are cross-arranged, and the two ends of the first reset rod pass through the second strip holes of two of the connecting tubes and are fixedly connected to the two sliding plates one by one, and the two ends of the second reset rod pass through the second strip holes of the other two connecting tubes and are fixedly connected to the other two sliding plates one by one.

[0018] Furthermore, the first connecting rod and the second connecting rod extend along the length direction of the first support rod, and the ends of the first connecting rod and the second connecting rod that are away from each other are respectively vertically connected to the third connecting rod and the fourth connecting rod, the third connecting rod and the first support rod are vertically fixedly connected, and the fourth connecting rod and the second support rod are vertically fixedly connected.

[0019] Furthermore, an energy dissipation plate is arranged between the first friction steel plate and the second friction steel plate.

[0020] Furthermore, the column embracing plate is in a multi-petal shape, and is composed of a plurality of arc-shaped plates clamped to each other, and clamps are clamped to the circumferential sides of the plurality of arc-shaped plates.

[0021] Furthermore, the inner side wall of the arc-shaped plate is fixedly connected with anti-slip rubber.

[0022] Furthermore, the base includes a plurality of fan-shaped bottom plates, and the plurality of fan-shaped bottom plates are connected by connecting plates to form a circular ring shape.

[0023] Compared with the prior art, the utility model has at least the following advantages:

[0024] When the vibration of the pier column produces impact force on the column plate and the support rod, the friction damper can achieve friction energy dissipation while achieving the supporting effect, reducing the vibration of the pier column, thereby protecting the pier column. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0026] Figure 1 It is a schematic diagram of the overall structure of the highway bridge reinforcement device of the utility model;

[0027] Figure 2 For this utility model Figure 1 A partial enlarged view of the middle A area;

[0028] Figure 3 It is a cross-sectional view of the friction damper of the utility model;

[0029] Figure 4 It is an exploded view of the column plate and the clamp of the utility model.

[0030] Figure numerals: 1. pier column; 2. arc plate; 3. clamp; 4. anti-slip rubber; 5. fan-shaped bottom plate; 6. connecting plate; 7. first support rod; 8. second support rod; 9. first connecting rod; 10. second connecting rod; 11. third connecting rod; 12. fourth connecting rod; 13. first friction steel plate; 14. first strip hole; 15. second friction steel plate; 16. round hole; 17. bolt; 18. first end plate; 19. second end plate; 20. connecting pipe; 21. sliding plate; 22. SMA spring; 23. first reset rod; 24. second reset rod; 25. second strip hole. DETAILED DESCRIPTION

[0031] 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.

[0032] In order to make the above-mentioned purposes, features and advantages of the present invention more obvious and easy to understand, the present invention is further described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0033] Reference Figure 1 The utility model provides a highway bridge reinforcement device for reinforcing a bridge pier 1. Specifically, it includes a column plate, a base and a support rod. The column plate is sleeved on the outer wall of the middle and upper section of the pier 1, and the column plate is fixedly connected to the outer wall of the pier 1; the base is located above the pile foundation, and the base is arranged on the circumference of the pier 1; there are a plurality of support rods, and the support rods are arranged obliquely, and a plurality of support rods are arranged at intervals along the circumference of the pier 1, and the two ends of the support rods are respectively connected to the column plate and the base, and the support rods include a first support rod 7, a second support rod 8 and a friction damper, one end of the first support rod 7 is hinged to the outer wall of the column plate, and one end of the second support rod 8 is hinged to the base, the first support rod 7 and the second support rod 8 are coaxially inclined and mutually slidably plugged, and the two ends of the friction damper are respectively connected to the other end of the first support rod 7 and the other end of the second support rod 8.

[0034] When the pier column 1 vibrates and generates impact force on the column plate and the support rod, the friction damper can achieve friction energy consumption while achieving the supporting effect, thereby reducing the vibration generated by the pier column 1 and protecting the pier column 1.

[0035] Reference Figure 4The column plate is in a multi-petal shape and is composed of a plurality of mutually clamped arc plates 2, and a clamp 3 is clamped around the periphery of the plurality of arc plates 2. The inner wall of the arc plate 2 is fixedly connected with an anti-skid rubber 4, and the friction between the arc plate 2 and the pier 1 can be improved by providing the anti-skid rubber 4. The base includes a plurality of fan-shaped bottom plates 5, and the plurality of fan-shaped bottom plates 5 are connected by a connecting plate 6 to form a ring shape.

[0036] Reference Figure 2-3 The friction damper includes: a first connecting rod 9, a second connecting rod 10, a first friction steel plate 13 and a second friction steel plate 15. The first connecting rod 9 and the second connecting rod 10 are respectively connected to the other end of the first support rod 7 and the other end of the second support rod 8, and the adjacent ends of the first connecting rod 9 and the second connecting rod 10 are respectively fixedly connected with the first friction steel plate 13 and the second friction steel plate 15, and the first friction steel plate 13 and the second friction steel plate 15 are frictionally connected along the length direction of the first support rod 7. An energy dissipation sheet is arranged between the first friction steel plate 13 and the second friction steel plate 15, and the energy dissipation sheet can be made of a material with a large friction coefficient such as a brass sheet, so as to increase the energy dissipation capacity of the damper.

[0037] Preferably, the first friction steel plate 13 and the second friction steel plate 15 are of cylindrical structure and plugged into each other. The first friction steel plate 13 and the second friction steel plate 15 are provided with first strip holes 14 and round holes 16 at relative positions on their side walls, respectively. Bolts 17 are passed through the first strip holes 14 and the round holes 16 for fixing.

[0038] In a specific embodiment of the present invention, the first friction steel plate 13 and the second friction steel plate 15 are rectangular parallelepiped structures.

[0039] In addition, the friction damper further includes a first end plate 18, a second end plate 19, a connecting pipe 20, a first reset rod 23 and a second reset rod 24. The first end plate 18 and the second end plate 19 are located on both sides of the first friction steel plate 13 and the second friction steel plate 15, the first connecting rod 9 and the second connecting rod 10 are slidably connected to the first end plate 18 and the second end plate 19 respectively, a plurality of connecting pipes 20 are fixedly connected between the first end plate 18 and the second end plate 19, a sliding plate 21 is slidably connected to the middle of the connecting pipe 20 and two SMA springs 22 are arranged at both ends of the sliding plate 21, the SMA spring 22 is a shape memory alloy spring, the two ends of one of the SMA springs 22 are respectively connected to the sliding plate 21 and the first end plate 18, and the other SMA The two ends of the spring 22 are respectively connected to the sliding plate 21 and the second end plate 19; the first reset rod 23 and the second reset rod 24 are vertically fixedly connected to the ends of the first friction steel plate 13 and the second friction steel plate 15 that are away from each other, and the first reset rod 23 and the second reset rod 24 are cross-arranged, the first reset rod 23 at least passes through one of the connecting tubes 20 and is fixedly connected to a sliding plate 21, the second reset rod 24 at least passes through another connecting tube 20 and is fixedly connected to another sliding plate 21, and the first reset rod 23 and the second reset rod 24 are slidably connected along the length direction of the connecting tube 20.

[0040] SMA materials are different from other metals. When the temperature rises to a certain specified temperature, the part of the SMA material that has undergone plastic strain will return to its shape before deformation. This phenomenon is called shape memory effect.

[0041] In a specific embodiment of the present utility model, four connecting tubes 20 are provided, and a second strip hole 25 is arranged on the side wall of the connecting tube 20. The first reset rod 23 and the second reset rod 24 are cross-arranged, and the two ends of the first reset rod 23 pass through the second strip holes 25 of two of the connecting tubes 20 and are fixedly connected to the two sliding plates 21 one by one. The two ends of the second reset rod 24 pass through the second strip holes 25 of the other two connecting tubes 20 and are fixedly connected to the other two sliding plates 21 one by one.

[0042] When the first friction steel plate 13 and the second friction steel plate 15 move away from or close to each other, the SMA spring 22 in the connecting tube 20 will be deformed. Since SMA has the ability to recover deformation, the SMA spring 22 continues to provide a restoring force, so that the first friction steel plate 13 and the second friction steel plate 15 gradually recover to their initial state. It should be understood that the SMA material is a temperature-sensitive material. Therefore, the SMA spring 22 should be heat-treated in advance to fully stimulate its superelasticity, reduce the residual displacement of the damper, and improve its self-reset ability.

[0043] When the pier is deformed, the first friction steel plate 13 and the second friction steel plate 15 may move away from or approach each other, and the SMA spring 22 continuously provides a restoring force so that the first friction steel plate 13 and the second friction steel plate 15 gradually return to their initial state, thereby assisting the pier to return to its shape before deformation.

[0044] Preferably, the first connecting rod 9 and the second connecting rod 10 extend along the length direction of the first support rod 7, and the ends of the first connecting rod 9 and the second connecting rod 10 that are away from each other are vertically connected with the third connecting rod 11 and the fourth connecting rod 12 respectively, the third connecting rod 11 and the first support rod 7 are vertically fixedly connected, and the fourth connecting rod 12 and the second support rod 8 are vertically fixedly connected.

[0045] In the description of the present invention, it should be understood that the terms "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside" and "outside" etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0046] The embodiments described above are only descriptions of the preferred methods of the present invention, and are not intended to limit the scope of the present invention. Without departing from the design spirit of the present invention, various modifications and improvements made to the technical solutions of the present invention by ordinary technicians in this field should fall within the protection scope determined by the claims of the present invention.

Claims

1. A highway bridge reinforcement device, characterized in that: include: A column holding plate fixedly connected to the outer side wall of the pier column (1); A base is located above the pile foundation and is arranged around the pier column (1); as well as A plurality of support rods are arranged at intervals along the circumference of the pier column (1), the support rods comprising a first support rod (7) having one end hinged to the outer wall of the column plate, a second support rod (8) having one end hinged to the base, and a friction damper connected to the other end of the first support rod (7) and the other end of the second support rod (8), respectively; the first support rod (7) and the second support rod (8) are coaxially inclined and slidably plugged into each other.

2. The highway bridge reinforcement device according to claim 1, characterized in that: The friction damper comprises: A first connecting rod (9) and a second connecting rod (10) are respectively connected to the other end of the first supporting rod (7) and the other end of the second supporting rod (8); the adjacent ends of the first connecting rod (9) and the second connecting rod (10) are respectively fixedly connected with a first friction steel plate (13) and a second friction steel plate (15); the first friction steel plate (13) and the second friction steel plate (15) are frictionally connected along the length direction of the first supporting rod (7).

3. The highway bridge reinforcement device according to claim 2, characterized in that: The first friction steel plate (13) and the second friction steel plate (15) are cylindrical structures and are plugged into each other. The first friction steel plate (13) and the second friction steel plate (15) are respectively provided with a first strip hole (14) and a round hole (16) at relative positions on the side walls. The first strip hole (14) and the round hole (16) are penetrated by bolts (17) for fixing.

4. The highway bridge reinforcement device according to claim 3, characterized in that: The friction damper also includes: a first end plate (18) and a second end plate (19) located on both sides of the first friction steel plate (13) and the second friction steel plate (15); a first connecting rod (9) and a second connecting rod (10) are slidably connected to the first end plate (18) and the second end plate (19) respectively; a plurality of connecting tubes (20) are fixedly connected between the first end plate (18) and the second end plate (19); a sliding plate (21) is slidably connected to the middle of the connecting tube (20) and two SMA springs (22) are arranged at both ends of the sliding plate (21), wherein two ends of one of the SMA springs (22) are respectively connected to the sliding plate (21) and the first end plate (18), and wherein two ends of the other SMA spring (22) are respectively connected to the sliding plate (21) and the second end plate (19); and A first reset rod (23) and a second reset rod (24) are respectively vertically fixedly connected to one end of the first friction steel plate (13) and the second friction steel plate (15) which are away from each other. The first reset rod (23) and the second reset rod (24) are cross-arranged. The first reset rod (23) passes through at least one of the connecting tubes (20) and is fixedly connected to one of the sliding plates (21). The second reset rod (24) passes through at least another of the connecting tubes (20) and is fixedly connected to another of the sliding plates (21). The first reset rod (23) and the second reset rod (24) are slidably connected along the length direction of the connecting tube (20).

5. The highway bridge reinforcement device according to claim 4, characterized in that: Four connecting tubes (20) are provided, and second strip holes (25) are arranged on the side walls of the connecting tubes (20). The first reset rod (23) and the second reset rod (24) are arranged in a cross shape. The two ends of the first reset rod (23) pass through the second strip holes (25) of two of the connecting tubes (20) and are fixedly connected to the two sliding plates (21) in a one-to-one correspondence. The two ends of the second reset rod (24) pass through the second strip holes (25) of the other two of the connecting tubes (20) and are fixedly connected to the other two sliding plates (21) in a one-to-one correspondence.

6. The highway bridge reinforcement device according to claim 4, characterized in that: The first connecting rod (9) and the second connecting rod (10) extend along the length direction of the first support rod (7); the ends of the first connecting rod (9) and the second connecting rod (10) that are away from each other are respectively vertically connected to a third connecting rod (11) and a fourth connecting rod (12); the third connecting rod (11) and the first support rod (7) are vertically fixedly connected, and the fourth connecting rod (12) and the second support rod (8) are vertically fixedly connected.

7. The highway bridge reinforcement device according to any one of claims 2 to 6, characterized in that: An energy dissipation plate is arranged between the first friction steel plate (13) and the second friction steel plate (15).

8. The highway bridge reinforcement device according to claim 1, characterized in that: The column embracing plate is in a multi-petal shape and is composed of a plurality of mutually clamped arc-shaped plates (2), and clamps (3) are clamped on the peripheral sides of the plurality of arc-shaped plates (2).

9. The highway bridge reinforcement device according to claim 8, characterized in that: The inner side wall of the arc-shaped plate (2) is fixedly connected with anti-slip rubber (4).

10. The highway bridge reinforcement device according to claim 1, characterized in that: The base comprises a plurality of sector-shaped bottom plates (5), and the plurality of sector-shaped bottom plates (5) are connected via a connecting plate (6) to form a circular ring shape.

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