A bridge tunnel connection section shock absorbing support

Abstract

The utility model discloses a bridge tunnel connecting section shock absorption support, including with bridge connecting section through bolt anchoring fixed upper connecting plate, still include with bridge pier column anchoring connection's lower connecting plate, still include the shock absorption spherical hinge support of installing in the position between lower connecting plate and upper connecting plate, still include the shock absorption mechanism for weakening bridge connecting section lateral force moment, including the concrete pile column of vertical lower connecting plate, install on the shock absorption seat of concrete pile column, the shock absorption spring pin column of even distribution, install the limiting round block and the damping torus in the shock absorption seat, the inner side wall of this shock absorption seat is fixed with the inner ring of integrative casting form, the built -in rolling ball of limiting round block, the shock absorption design of this application can weaken the deformation torque of vehicle load and vehicle travel, and the shock absorption spherical hinge support plays the weakening vibration of vehicle travel, and the damping torus and shock absorption spring pin column play the role of weakening the torque of vehicle travel.

Description

Technical Field

[0001] This utility model belongs to the technical field of vibration damping devices for bridge-tunnel connections, specifically relating to a vibration damping support for bridge-tunnel connection sections. Background Technology

[0002] The bridge-tunnel connection section refers to the transition area between a bridge and a tunnel, and is an important bridge section in transportation engineering such as highways and railways. When vehicles travel on bridge-tunnel connection sections, vibrations occur due to vehicle loads. If these vibrations continue to amplify and accumulate, they cause vehicle bumps and impacts on components such as the road surface and expansion joints of the connection section, accelerating problems such as bridge road surface cracking and expansion joint damage. Traditional bridge connection sections are fixed to bridge piers by anchoring, lacking vibration reduction designs to weaken vehicle loads and deformation moments generated by vehicle travel, and therefore require improvement.

[0003] Existing bridge-tunnel connection sections lack vibration damping designs to reduce vehicle loads and deformation moments generated by vehicle movement when connecting to tunnels. To address this, this application proposes a vibration damping bearing for bridge-tunnel connection sections. Utility Model Content

[0004] The purpose of this utility model is to provide a vibration damping bearing for bridge-tunnel connection sections to solve the problem of vibration damping design that does not reduce vehicle load and deformation moment generated by vehicle movement, as mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a vibration damping bearing for a bridge-tunnel connection section, comprising an upper connecting plate fixed to the bridge connection section by bolts; a lower connecting plate fixed to the bridge pier; a vibration damping ball hinge bearing installed between the lower connecting plate and the upper connecting plate; and a vibration damping mechanism for reducing the lateral moment of the bridge connection section, comprising a concrete pile perpendicular to the lower connecting plate, a vibration damping seat installed on the concrete pile, uniformly distributed vibration damping spring pins, a limiting block and a damping ring installed inside the vibration damping seat, wherein an integrally cast inner ring is fixed to the inner wall of the vibration damping seat, and a rolling ball is built into the limiting block.

[0006] Preferably, the inner ring has recessed, uniformly distributed mounting grooves on its surface, and the shock-absorbing spring pins are installed in the corresponding mounting grooves.

[0007] Preferably, the damping ring includes an outer spring steel plate, a damping rubber plate, and an inner spring steel plate, and the damping ball joint support is located between the outer spring steel plate and the inner spring steel plate.

[0008] Preferably, the end of the shock-absorbing spring pin is tangent to the outer surface of the outer spring steel plate, and the inner spring steel plate is tangent to the rolling ball.

[0009] Preferably, a pressure ring with a locking damping spring pin is fixed to the surface of the inner ring by bolts.

[0010] Preferably, a reinforcing sleeve is fitted on the outer side of the top of the concrete pile, and the reinforcing sleeve is funnel-shaped with a wide top end and a narrow bottom end.

[0011] Preferably, a sealing pressure plate is fitted on the outer side of the bottom end of the concrete pile near the limiting block.

[0012] Compared with the prior art, the beneficial effects of this utility model are: 1. Through the designed damping ball hinge support, lower connecting plate, upper connecting plate and concrete pile, the damping ball hinge support plays a role in damping, and the concrete pile plays a role in supporting and reinforcing.

[0013] 2. Through the design of the damping ring and the shock-absorbing spring pin, the damping ring, which is composed of an outer spring steel plate, a shock-absorbing rubber plate, and an inner spring steel plate, contains spring steel and shock-absorbing rubber. The spring steel and rubber have the function of reducing vibration force, and the spring set on the shock-absorbing spring pin can provide damping force, consume vibration energy, and achieve the purpose of reducing vibration force. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the structure of this utility model; Figure 2 This is a top view of the lower connecting plate of this utility model. Figure 3 For the present utility model Figure 2 Enlarged structural diagram of section A in the middle; Figure 4 This is a three-dimensional structural diagram of the shock absorber seat of this utility model; Figure 5 This is a three-dimensional structural diagram of the damping ring of this utility model; Figure 6 This is a cross-sectional view of the limiting circular block of this utility model.

[0015] In the diagram: 1. Lower connecting plate; 2. Vibration damping ball hinge support; 3. Upper connecting plate; 4. Concrete pile; 5. Vibration damping seat; 6. Vibration damping spring pin; 7. Damping ring; 8. Limiting block; 9. Rolling ball; 10. Pressure ring; 41. Reinforcing sleeve; 42. Sealing pressure plate; 51. Inner ring; 52. Mounting groove; 71. Outer spring steel plate; 72. Vibration damping rubber plate; 73. Inner spring steel plate. Detailed Implementation

[0016] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0017] Please see Figures 1 to 6 This utility model provides a technical solution: a bridge-tunnel connection section vibration damping bearing, including an upper connecting plate 3 fixed to the bridge connection section by bolts, the upper connecting plate 3 being used for fixed connection with the bridge connection section; it also includes a lower connecting plate 1 anchored to the bridge pier, the lower connecting plate 1 being used to connect the bridge pier and a vibration damping ball hinge bearing 2; it also includes a vibration damping ball hinge bearing 2 installed between the lower connecting plate 1 and the upper connecting plate 3, the vibration damping ball hinge bearing 2 serving a vibration damping function; it also includes a vibration damping mechanism for reducing the lateral moment of the bridge connection section, including a concrete pile 4 perpendicular to the lower connecting plate 1, a vibration damping seat 5 installed on the concrete pile 4, uniformly distributed vibration damping spring pins 6, a limiting block 8 and a damping ring 7 installed inside the vibration damping seat 5, the lower connecting plate... When a tendency for lateral movement occurs under the influence of torque, the concrete pile 4 acts on the limiting block 8, causing the limiting block 8 to tend to displace. The limiting block 8 acts on the damping ring 7, which is composed of an outer spring steel plate 71, a damping rubber plate 72, and an inner spring steel plate 73. The spring steel and rubber have the function of reducing vibration force. A spring is installed on the damping spring pin 6, which can provide damping force, consume vibration energy, and achieve the purpose of reducing vibration force. The damping ring 7 and the damping spring pin 6 play the role of reducing torque. The inner wall of the damping seat 5 is fixed with an integrally cast inner ring 51. A rolling ball 9 is built into the limiting block 8. The friction between the rolling ball 9 and the damping ring 7 is small, avoiding hard collision between the limiting block 8 and the damping ring 7.

[0018] In this embodiment, a recessed and uniformly distributed mounting groove 52 is provided on the surface of the inner ring 51. The shock-absorbing spring pin 6 is installed in the corresponding mounting groove 52, and the installation position of the shock-absorbing spring pin 6 is defined, which facilitates accurate installation of the shock-absorbing spring pin 6.

[0019] In this embodiment, the damping ring 7 includes an outer spring steel plate 71, a damping rubber plate 72, and an inner spring steel plate 73. The damping ball joint support 2 is located between the outer spring steel plate 71 and the inner spring steel plate 73. The end of the damping spring pin 6 is tangent to the outer surface of the outer spring steel plate 71, and the inner spring steel plate 73 is tangent to the rolling ball 9. The spring steel and rubber have the function of reducing vibration force. The spring provided on the damping spring pin 6 can provide damping force, consume vibration energy, and achieve the purpose of reducing vibration force. The damping ring 7 and the damping spring pin 6 play the role of reducing torque.

[0020] In this embodiment, a pressure ring 10 for locking the shock-absorbing spring pin 6 is fixed to the surface of the inner ring 51 by bolts. The pressure ring 10 serves to limit the shock-absorbing spring pin 6 and prevent the shock-absorbing spring pin 6 from jumping.

[0021] In this embodiment, a reinforcing sleeve 41 is fitted on the outer side of the top of the concrete pile 4. The reinforcing sleeve 41 is funnel-shaped with a wide top port diameter and a narrow bottom port diameter. A sealing pressure plate 42 is fitted on the outer side of the bottom end of the concrete pile 4 near the limiting circular block 8. The reinforcing sleeve 41 is fixed to the upper connecting plate 3 by bolts. The sealing pressure plate 42 is reinforced to the shock absorber 5 by anchors and bolts. Under the synergistic effect of the reinforcing sleeve 41 and the sealing pressure plate 42, the structural strength of both ends of the concrete pile 4 is further reinforced.

[0022] Working principle and usage process of this utility model: The connecting plate 3 is used to fix the bridge connecting section, and the lower connecting plate 1 is used to connect the bridge pier and the shock-absorbing ball joint bearing 2. The shock-absorbing ball joint bearing 2 plays a shock-absorbing role. Concrete pile 4 supports the lower connecting plate 1 and the upper connecting plate 3; When the connecting plate 1 shows a tendency to move laterally under the influence of torque, the concrete pile 4 acts on the limiting block 8, the limiting block 8 tends to displace, and the limiting block 8 acts on the damping ring 7. The damping ring 7 is composed of an outer spring steel plate 71, a damping rubber plate 72, and an inner spring steel plate 73. The spring steel and rubber have the function of reducing vibration force. The spring set on the damping spring pin 6 can provide damping force, consume vibration energy, and achieve the purpose of reducing vibration force. The damping ring 7 and the shock-absorbing spring pin 6 serve to reduce the torque. In summary, this application provides a vibration reduction design that can reduce vehicle load and deformation torque generated by vehicle movement. The vibration damping ball joint support 2 reduces the vibration generated by vehicle movement, while the concrete pile 4, the limiting block 8, the damping ring 7, and the vibration damping spring pin 6 reduce the torque.

[0023] Although embodiments of the present invention have been shown and described (see the detailed description above), it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A vibration damping bearing for a bridge-tunnel connection section, characterized in that: It includes an upper connecting plate (3) that is bolted to the bridge connecting section; a lower connecting plate (1) that is bolted to the bridge pier; a damping ball hinge support (2) installed between the lower connecting plate (1) and the upper connecting plate (3); and a damping mechanism for reducing the lateral moment of the bridge connecting section, including a concrete pile (4) perpendicular to the lower connecting plate (1), a damping seat (5) installed on the concrete pile (4), uniformly distributed damping spring pins (6), a limiting block (8) and a damping ring (7) installed inside the damping seat (5), the inner wall of the damping seat (5) is fixed with an integrally cast inner ring (51), and a rolling ball (9) is built into the limiting block (8).

2. The vibration damping bearing for a bridge-tunnel connection section according to claim 1, characterized in that: The inner ring (51) has recessed and uniformly distributed mounting grooves (52) on its surface, and the shock-absorbing spring pin (6) is installed in the corresponding mounting groove (52).

3. The vibration damping bearing for a bridge-tunnel connection section according to claim 1, characterized in that: The damping ring (7) includes an outer spring steel plate (71), a damping rubber plate (72), and an inner spring steel plate (73), and the damping ball joint support (2) is located between the outer spring steel plate (71) and the inner spring steel plate (73).

4. A vibration damping bearing for a bridge-tunnel connection section according to claim 3, characterized in that: The end of the shock-absorbing spring pin (6) is tangent to the outer surface of the outer spring steel plate (71), and the inner spring steel plate (73) is tangent to the rolling ball (9).

5. A vibration damping bearing for a bridge-tunnel connection section according to claim 1, characterized in that: The inner ring (51) has a pressure ring (10) with a locking damping spring pin (6) fixed to its surface by bolts.

6. A vibration damping bearing for a bridge-tunnel connection section according to claim 1, characterized in that: The outer side of the top of the concrete pile (4) is fitted with a reinforcing sleeve (41), which is funnel-shaped with a wide top port diameter and a narrow bottom port diameter.

7. A vibration damping bearing for a bridge-tunnel connection section according to claim 1, characterized in that: A sealing pressure plate (42) is fitted on the outer side of the bottom end of the concrete pile (4) near the limiting round block (8).

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