Bridge pier impact protection device with reserved maintenance space

Abstract

The invention discloses a pier impact protection device with a reserved maintenance space, which comprises a pier impact protection device, a protection inner cavity matched with the contour of a pier and larger than the outer contour of the pier is formed in the pier impact protection device, and the pier impact protection device and the pier are enclosed to form the maintenance space. The pier impact protection device inner wall and the pier outer wall are connected through an elastic connecting piece, and the elastic connecting piece is perpendicular to the pier impact protection device and the pier. The problem that the pier on the inner side of the protection device is difficult to overhaul is effectively solved, and maintenance work is more efficient and convenient. The protection effect on the bridge pier is remarkably enhanced. Through the innovative design of reserving the maintenance space, adopting the energy absorption connecting piece and reasonably arranging the anti-collision waist beam, the vehicle collision energy is effectively absorbed and dispersed, the damage of collision to the pier is greatly reduced, the structural stability and durability of the pier are improved, and the service life of the bridge is prolonged.

Description

Technical Field

[0001] The invention belongs to the field of bridge pier protection design, and in particular relates to a bridge pier impact protection device with reserved maintenance space. Background Art

[0002] In current bridge projects, there are many problems in the application of pier impact protection devices.

[0003] Firstly, most of the existing bridge pier impact protection devices are tightly attached to the bridge piers, which makes it difficult for maintenance personnel to directly conduct surface inspections of the bridge piers, and thus they are unable to promptly discover possible defects in the bridge piers, affecting the efficiency of maintenance and repair of the bridge piers.

[0004] Secondly, the chemical materials used in some bridge pier impact protection devices are corrosive, which may cause potential damage to the bridge piers and reduce their service life and safety.

[0005] Third, the existing pier impact protection devices are usually only removed for inspection when a pier collision accident occurs. This method makes it difficult to promptly detect pier defects during daily maintenance, and thus makes it impossible to carry out maintenance and repairs in a timely manner, increasing the risk of serious damage to the piers.

[0006] Fourthly, the existing bridge pier impact protection device is closely attached to the bridge pier. When a vehicle collision occurs, the collision force will be directly transmitted to the bridge pier through the protection device, which will inevitably cause damage to the bridge pier and weaken the structural stability and bearing capacity of the bridge pier. Summary of the invention

[0007] The present invention is proposed to solve the problems existing in the prior art, and its purpose is to provide a pier impact protection device with reserved maintenance space.

[0008] The technical solution of the present invention is: a pier impact protection device with reserved maintenance space, including a pier impact protection device, a protective inner cavity adapted to the pier contour and larger than the pier outer contour is formed inside the pier impact protection device, the pier impact protection device and the pier are combined to form a maintenance space, the inner wall of the pier impact protection device and the outer wall of the pier are connected by an elastic connector, and the elastic connector is perpendicular to the pier impact protection device and the pier.

[0009] Furthermore, a first connecting waist beam is correspondingly arranged on the inner wall of the pier impact protection device and the outer wall of the pier.

[0010] Furthermore, a second connecting waist beam is correspondingly arranged on the inner wall of the pier impact protection device and the outer wall of the pier.

[0011] Furthermore, elastic connecting parts are provided between the first connecting waist beams and between the second connecting waist beams.

[0012] Furthermore, the elastic connecting members are arranged correspondingly on the left and right sides of the outer wall of the pier.

[0013] Furthermore, the elastic connector includes an outer steel component, an inner assembly cavity is formed in the outer steel component, a steel spring is arranged in the inner assembly cavity, and one end of the steel spring is connected to the embedded steel component inserted therein.

[0014] Furthermore, the embedded steel member and the outer steel member are respectively connected to the first connecting waist beam / the second connecting waist beam on the inner and outer sides.

[0015] Furthermore, the space between the embedded steel components and the outer steel components is filled with asphalt cementitious material.

[0016] Furthermore, the pier impact protection device includes an inner steel enclosure located at the inner circle, a flexible filling body is arranged outside the inner steel enclosure, a hexagonal multi-directional fiber composite energy-absorbing material is arranged outside the flexible filling body, and a steel-plastic composite material is arranged outside the hexagonal multi-directional fiber composite energy-absorbing material.

[0017] The beneficial effects of the present invention are as follows: The present invention effectively solves the problem of difficult maintenance of the bridge pier inside the protective device, making the maintenance work more efficient and convenient, helping to timely discover and deal with the diseases of the bridge pier and ensure the safe operation of the bridge.

[0018] The present invention significantly enhances the protective effect of bridge piers. Through innovative designs such as reserved maintenance space, energy-absorbing connectors, and reasonable anti-collision waist beams, the vehicle collision energy is effectively absorbed and dispersed, greatly reducing the damage caused by collision to bridge piers, improving the structural stability and durability of bridge piers, and extending the service life of bridges. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the overall structure of the present invention; Figure 2 It is a schematic diagram of the structure of the elastic connecting member in the present invention; Figure 3 It is a schematic diagram of the structure of the first connecting waist beam and the second connecting waist beam in the present invention; Figure 4 It is a structural schematic diagram of the bridge pier impact protection device in the present invention; in: 1. Bridge pier impact protection device, 2. Maintenance space, 3. Elastic connector, 4. First connecting waist beam, 5. Second connecting waist beam, 6. Internal maintenance upper and lower alloy ladder, 7. External maintenance upper and lower telescopic alloy ladder; 1-1, inner steel enclosure, 1-2, flexible filling body, 1-3, hexagonal multi-directional fiber composite energy-absorbing material, 1-4, steel-plastic composite material; 3-1, embedded steel components, 3-2, external steel components, 3-3, steel springs, 3-4, internal filling with asphalt cementitious materials; 4-1, first injection-molded steel component, 4-2, first bolt fastener; 5-1, second injection-molded steel component, 5-2, second bolt fastener. DETAILED DESCRIPTION

[0020] Hereinafter, the present invention will be described in detail with reference to the accompanying drawings and embodiments: like Figures 1 to 4 As shown, a pier impact protection device with reserved maintenance space includes a pier impact protection device 1, wherein a protective inner cavity adapted to the pier contour and larger than the pier outer contour is formed inside the pier impact protection device 1, the pier impact protection device 1 and the pier are combined to form a maintenance space 2, the inner wall of the pier impact protection device 1 and the outer wall of the pier are connected by an elastic connector 3, and the elastic connector 3 is perpendicular to the pier impact protection device 1 and the pier.

[0021] The inner wall of the bridge pier impact protection device 1 and the outer wall of the bridge pier are both correspondingly provided with a first connecting waist beam 4 .

[0022] A second connecting waist beam 5 is correspondingly arranged on the inner wall of the bridge pier impact protection device 1 and the outer wall of the bridge pier.

[0023] Elastic connecting members 3 are provided between the first connecting waist beams 4 and between the second connecting waist beams 5 .

[0024] The elastic connectors 3 are arranged correspondingly on the left and right sides of the outer wall of the pier.

[0025] The elastic connector 3 includes an outer steel component 3-2, an inner assembly cavity is formed in the outer steel component 3-2, a steel spring 3-3 is arranged in the inner assembly cavity, and one end of the steel spring 3-3 is connected to the embedded steel component 3-1 inserted therein.

[0026] The embedded steel member 3 - 1 and the outer steel member 3 - 2 are respectively connected to the first connecting waist beam 4 and the second connecting waist beam 5 on the inner and outer sides.

[0027] The inner-embedded steel component 3 - 1 and the outer-clad steel component 3 - 2 are filled with asphalt cementitious material.

[0028] The bridge pier impact protection device 1 includes an inner steel enclosure 1-1 located at the inner circle, a flexible filling body 1-2 is arranged outside the inner steel enclosure 1-1, a hexagonal multi-directional fiber composite energy-absorbing material 1-3 is arranged outside the flexible filling body 1-2, and a steel-plastic composite material 1-4 is arranged outside the hexagonal multi-directional fiber composite energy-absorbing material 1-3.

[0029] Specifically, the maintenance space 2 is provided with a built-in upper and lower maintenance alloy ladder 6, so that maintenance personnel can enter the maintenance space 2. Similarly, the pier impact protection device 1 is provided with an external upper and lower telescopic alloy ladder 7 for maintenance, so that maintenance personnel can climb onto the pier impact protection device 1.

[0030] Specifically, the external up-and-down telescopic alloy ladder 7 for maintenance is made of a lightweight and high-strength alloy and has good load-bearing capacity and stability. The alloy ladder can be easily extended and retracted by electric or manual control, making it convenient for maintenance personnel to work at different heights. At the same time, protective railings are set on both sides of the alloy ladder to ensure the safety of personnel going up and down.

[0031] An internal upper and lower alloy ladder 6 for maintenance is arranged on the inner side of the bridge pier impact protection device. The internal upper and lower alloy ladder 6 and the external upper and lower telescopic alloy ladder 7 for maintenance cooperate with each other to provide a shortcut for up and down passages for maintenance personnel, while facilitating maintenance personnel to go down to the bottom of the bridge pier for comprehensive and detailed inspection and maintenance.

[0032] Specifically, the first connecting waist beam 4 is located above the second connecting waist beam 5 .

[0033] Specifically, the first connecting waist beam 4 includes a first injection-molded steel component 4-1, and two ends of the first injection-molded steel component 4-1 are connected by a first bolt fastener 4-2 to form a closed ring.

[0034] Similarly, the second connecting waist beam 5 includes a second injection-molded steel component 5-1, and the two ends of the second injection-molded steel component 5-1 are connected by a second bolt fastener 5-2 to form a closed ring.

[0035] Specifically, the heights of the first connecting waist beam 4 on the inner side of the bridge pier impact protection device 1 and the outer wall of the bridge pier are the same.

[0036] Specifically, the inner steel enclosure 1-1 is covered on the steel plate with a flexible composite material on the side facing the pier to prevent the inner steel enclosure 1-1 from causing collision damage to the pier; the flexible filling body 1-2 is the second layer of energy-absorbing material; the hexagonal multi-directional fiber composite energy-absorbing material 1-3 is the first layer of energy-absorbing material, which absorbs most of the kinetic energy by material destruction and deformation; the steel-plastic composite material 1-4 directly collides with the vehicle and evenly transfers the kinetic energy transmitted by the vehicle to the first layer of energy-absorbing material.

[0037] Specifically, the width and height of the inspection space 2 can satisfy the needs of maintenance personnel to move freely and operate tools without excessively increasing the overall footprint of the bridge.

[0038] Specifically, the elastic connector 3 is made of high-strength steel components, and its surface is specially treated with anti-corrosion to extend its service life. When a collision occurs, the elastic connector 3 first absorbs most of the energy through the steel spring 3-3, and then absorbs part of the energy through its own elastic deformation. Subsequently, the internal buffer layer is further compressed to convert the collision energy into potential energy, thereby achieving a secondary energy absorption effect. Under normal circumstances, the elastic connector 3 can maintain a stable connection between the pier and the protective device, ensuring the reliability of the protective device.

[0039] Specifically, the two waist beams, namely the first waist beam 4 and the second waist beam 5, are made of high-strength alloy materials and have good impact resistance. The first waist beam 4 and the second waist beam 5 can effectively and evenly disperse the collision force of the vehicle to the bridge pier and the protective device, avoiding the concentrated effect of the collision force.

[0040] As a preferred embodiment, the first connecting waist beam 4 is set at a position higher than 1.6m, which is convenient for maintenance personnel to conduct visual inspection of the upper part while standing; the second connecting waist beam 5 is set at a position lower than 0.6m, which is convenient for maintenance personnel to squat or bend over to inspect the lower part.

[0041] The present invention effectively solves the problem of difficult maintenance of the bridge pier inside the protective device, making the maintenance work more efficient and convenient, helping to timely discover and deal with the diseases of the bridge pier and ensure the safe operation of the bridge.

[0042] The present invention significantly enhances the protective effect of bridge piers. Through innovative designs such as reserved maintenance space, energy-absorbing connectors, and reasonable anti-collision waist beams, the vehicle collision energy is effectively absorbed and dispersed, greatly reducing the damage caused by collision to bridge piers, improving the structural stability and durability of bridge piers, and extending the service life of bridges.

Claims

1. A bridge pier impact protection device with reserved maintenance space, characterized in that: The invention comprises a pier impact protection device (1), wherein a protective inner cavity is formed inside the pier impact protection device (1) and is adapted to the profile of the pier and has a size larger than the outer profile of the pier. The pier impact protection device (1) and the pier are combined to form a maintenance space (2). The inner wall of the pier impact protection device (1) and the outer wall of the pier are connected via an elastic connector (3), and the elastic connector (3) is perpendicular to the pier impact protection device (1) and the pier.

2. The bridge pier impact protection device with reserved maintenance space according to claim 1 is characterized in that: A first connecting waist beam (4) is correspondingly arranged on the inner wall of the bridge pier impact protection device (1) and the outer wall of the bridge pier.

3. The bridge pier impact protection device with reserved maintenance space according to claim 2 is characterized by: A second connecting waist beam (5) is correspondingly arranged on the inner wall of the bridge pier impact protection device (1) and the outer wall of the bridge pier.

4. The bridge pier impact protection device with reserved maintenance space according to claim 3 is characterized by: Elastic connecting parts (3) are provided between the first connecting waist beams (4) and between the second connecting waist beams (5).

5. The bridge pier impact protection device with reserved maintenance space according to claim 1 is characterized in that: The elastic connecting parts (3) are arranged correspondingly on the left and right sides of the outer wall of the pier.

6. The bridge pier impact protection device with reserved maintenance space according to claim 1 is characterized by: The elastic connecting member (3) comprises an outer steel component (3-2), an inner assembly cavity is formed in the outer steel component (3-2), a steel spring (3-3) is arranged in the inner assembly cavity, and one end of the steel spring (3-3) is connected to the embedded steel component (3-1) inserted therein.

7. The bridge pier impact protection device with reserved maintenance space according to claim 6 is characterized by: The embedded steel component (3-1) and the outer steel component (3-2) are respectively connected to the first connecting waist beam (4) and the second connecting waist beam (5) on the inner and outer sides.

8. The bridge pier impact protection device with reserved maintenance space according to claim 7 is characterized by: The space between the embedded steel component (3-1) and the outer steel component (3-2) is filled with an internally filled asphalt cementitious material.

9. The bridge pier impact protection device with reserved maintenance space according to claim 1 is characterized by: The bridge pier impact protection device (1) comprises an inner steel enclosure (1-1) located at the inner ring, a flexible filling body (1-2) is arranged outside the inner steel enclosure (1-1), a hexagonal multi-directional fiber composite energy absorbing material (1-3) is arranged outside the flexible filling body (1-2), and a steel-plastic composite material (1-4) is arranged outside the hexagonal multi-directional fiber composite energy absorbing material (1-3).

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