Bridge pier impact protection device with reserved maintenance space

Abstract

The utility model discloses a bridge pier impact protection device with reserved maintenance space, which comprises a bridge pier impact protection device, a protection inner cavity matched with the outline of a bridge pier is formed in the bridge pier impact protection device, the size of the protection inner cavity is larger than that of the outer outline of the bridge pier, and the bridge pier impact protection device and the bridge 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 obviously 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] This utility model belongs to the field of bridge pier protection design, specifically relating to a bridge pier impact protection device with reserved maintenance space. Background Technology

[0002] There are many problems with the application of pier impact protection devices in current bridge engineering.

[0003] Firstly, most existing bridge pier impact protection devices are tightly attached to the bridge piers, making it difficult for maintenance personnel to directly inspect the surface of the bridge piers. As a result, they cannot detect potential defects in the bridge piers in a timely manner, which affects the efficiency of bridge pier maintenance and repair.

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

[0005] Third, because existing pier impact protection devices are usually only removed for inspection when a pier collision occurs, this makes it difficult to detect pier defects in a timely manner during routine maintenance, thus hindering timely maintenance and repair and increasing the risk of serious damage to the piers.

[0006] Fourth, the existing pier impact protection devices are close to the piers. When a vehicle collision occurs, the impact force will be directly transmitted to the pier through the protection device, inevitably causing damage to the pier and weakening the structural stability and load-bearing capacity of the pier. Summary of the Invention

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

[0008] The technical solution of this utility model is: a bridge pier impact protection device with reserved maintenance space, including a bridge pier impact protection device, wherein the bridge pier impact protection device forms a protective inner cavity that is adapted to the outline of the bridge pier and is larger than the outer outline of the bridge pier, the bridge pier impact protection device and the bridge pier enclose the maintenance space, and the inner wall of the bridge pier impact protection device and the outer wall of the bridge pier are connected by an elastic connector, the elastic connector being perpendicular to the bridge pier impact protection device and the bridge pier.

[0009] Furthermore, the inner wall of the pier impact protection device and the outer wall of the pier are each equipped with a first connecting waist beam.

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

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

[0012] Furthermore, the elastic connectors are arranged on the left and right sides of the outer wall of the bridge 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 provided 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 component and the outer steel component are respectively connected to the first connecting waist beam / second connecting waist beam on the inner and outer sides.

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

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

[0017] The beneficial effects of this utility model are as follows:

[0018] This invention effectively solves the problem of difficult maintenance of the inner side of the bridge piers in the protection device, making maintenance work more efficient and convenient, helping to detect and deal with bridge pier defects in a timely manner, and ensuring the safe operation of the bridge.

[0019] This invention significantly enhances the protective effect on bridge piers. Through innovative designs such as reserving maintenance space, using energy-absorbing connectors, and rationally setting anti-collision beams, it effectively absorbs and disperses the energy of vehicle collisions, greatly reducing the damage to bridge piers, improving the structural stability and durability of the piers, and extending the service life of the bridge. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0021] Figure 2 This is a structural schematic diagram of the elastic connector in this utility model;

[0022] Figure 3 This is a structural diagram of the first connecting waist beam and the second connecting waist beam in this utility model;

[0023] Figure 4 This is a schematic diagram of the structure of the bridge pier impact protection device in this utility model;

[0024] in:

[0025] 1. Pier impact protection device; 2. Maintenance space; 3. Flexible connector; 4. First connecting waist beam; 5. Second connecting waist beam; 6. Built-in maintenance ladder; 7. External maintenance telescopic ladder.

[0026] 1-1. Inner steel frame; 1-2. Flexible filler; 1-3. Hexagonal multi-directional fiber composite energy-absorbing material; 1-4. Steel-plastic composite material.

[0027] 3-1. Embedded steel components; 3-2. Externally wrapped steel components; 3-3. Steel springs; 3-4. Internally filled with asphalt cementitious material.

[0028] 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 Implementation

[0029] The present invention will now be described in detail with reference to the accompanying drawings and embodiments:

[0030] like Figures 1 to 4 As shown, a bridge pier impact protection device with reserved maintenance space includes a bridge pier impact protection device 1. The bridge pier impact protection device 1 has a protective inner cavity that is adapted to the outline of the bridge pier and is larger than the outer outline of the bridge pier. The bridge pier impact protection device 1 and the bridge pier enclose a maintenance space 2. The inner wall of the bridge pier impact protection device 1 and the outer wall of the bridge pier are connected by an elastic connector 3. The elastic connector 3 is perpendicular to the bridge pier impact protection device 1 and the bridge pier.

[0031] The first connecting waist beam 4 is provided on both the inner wall of the pier impact protection device 1 and the outer wall of the pier.

[0032] The inner wall of the pier impact protection device 1 and the outer wall of the pier are each equipped with a second connecting waist beam 5.

[0033] Elastic connectors 3 are provided between the first connecting waist beams 4 and between the second connecting waist beams 5.

[0034] The elastic connectors 3 are arranged on the left and right sides of the outer wall of the bridge pier.

[0035] The elastic connector 3 includes an outer steel component 3-2, in which an inner assembly cavity is formed. A steel spring 3-3 is provided in the inner assembly cavity, and one end of the steel spring 3-3 is connected to an embedded steel component 3-1 inserted therein.

[0036] 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.

[0037] The space between the embedded steel component 3-1 and the outer steel component 3-2 is filled with an internal asphalt cementitious material.

[0038] The pier impact protection device 1 includes an inner steel enclosure 1-1 located in the inner ring, a flexible filler 1-2 provided outside the inner steel enclosure 1-1, a hexagonal multi-directional fiber composite energy-absorbing material 1-3 provided outside the flexible filler 1-2, and a steel-plastic composite material 1-4 provided outside the hexagonal multi-directional fiber composite energy-absorbing material 1-3.

[0039] Specifically, the maintenance space 2 is equipped with a built-in maintenance ladder 6, which allows maintenance personnel to enter the maintenance space 2. Similarly, the bridge pier impact protection device 1 is equipped with an external maintenance telescopic ladder 7, which allows maintenance personnel to climb onto the bridge pier impact protection device 1.

[0040] Specifically, the external telescopic alloy ladder 7 for maintenance is made of lightweight, high-strength alloy, possessing excellent load-bearing capacity and stability. The ladder can be easily extended and retracted via electric or manual control, facilitating work at different heights for maintenance personnel. Additionally, guardrails are installed on both sides of the ladder to ensure the safety of personnel going up and down.

[0041] An internal maintenance ladder 6 is installed inside the pier impact protection device. The internal maintenance ladder 6 and the external maintenance telescopic ladder 7 work together to provide maintenance personnel with a quick way to go up and down, and at the same time facilitate maintenance personnel to go down to the bottom of the pier for comprehensive and detailed inspection and maintenance.

[0042] Specifically, the first connecting waist beam 4 is located above the second connecting waist beam 5.

[0043] Specifically, the first connecting waist beam 4 includes a first injection-molded steel component 4-1, and the two ends of the first injection-molded steel component 4-1 are connected by a first bolt fastener 4-2 to form a closed loop.

[0044] 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 loop.

[0045] Specifically, the height of the first connecting waist beam 4 on the inner side of the pier impact protection device 1 and on the outer wall of the pier is the same.

[0046] Specifically, the inner steel enclosure 1-1 facing the pier is covered with a flexible composite material on the steel plate to prevent the inner steel enclosure 1-1 from causing collision damage to the pier; the flexible filler 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 utilizing the material's deformation during destruction; the steel-plastic composite material 1-4 directly collides with the vehicle, uniformly transferring the kinetic energy transmitted by the vehicle to the first layer of energy-absorbing material.

[0047] Specifically, the width and height of the maintenance space 2 can meet the needs of maintenance personnel for free movement and operation of tools, without excessively increasing the overall footprint of the bridge.

[0048] Specifically, the elastic connector 3 is made of high-strength steel with a special anti-corrosion treatment 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, then absorbs a portion of the energy through its own elastic deformation. Subsequently, the internal buffer layer further compresses, converting the collision energy into potential energy, thus achieving a secondary energy absorption effect. Under normal circumstances, the elastic connector 3 maintains a stable connection between the pier and the protective device, ensuring the reliability of the protective device.

[0049] Specifically, both connecting beams, namely the first connecting beam 4 and the second connecting beam 5, are made of high-strength alloy materials and have excellent impact resistance. The first connecting beam 4 and the second connecting beam 5 can effectively distribute the vehicle collision force evenly to the piers and protective devices, avoiding the concentration of collision force.

[0050] As a preferred option, the first connecting waist beam 4 is positioned above 1.6m to facilitate maintenance personnel to perform an upper surface inspection while standing; the second connecting waist beam 5 is positioned below 0.6m to facilitate maintenance personnel to squat or bend over to perform a lower inspection.

[0051] This invention effectively solves the problem of difficult maintenance of the inner side of the bridge piers in the protection device, making maintenance work more efficient and convenient, helping to detect and deal with bridge pier defects in a timely manner, and ensuring the safe operation of the bridge.

[0052] This invention significantly enhances the protective effect on bridge piers. Through innovative designs such as reserving maintenance space, using energy-absorbing connectors, and rationally setting anti-collision beams, it effectively absorbs and disperses the energy of vehicle collisions, greatly reducing the damage to bridge piers, improving the structural stability and durability of the piers, and extending the service life of the bridge.

Claims

1. A bridge pier impact protection device with reserved maintenance space, characterized in that: The device includes a pier impact protection device (1), which has a protective inner cavity that is adapted to the outline of the pier and is larger than the outer outline of the pier. The pier impact protection device (1) and the pier enclose 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). The elastic connector (3) is perpendicular to the pier impact protection device (1) and the pier.

2. The pier impact protection device with reserved maintenance space according to claim 1, characterized in that: The pier impact protection device (1) has a first connecting waist beam (4) on both the inner wall and the outer wall of the pier.

3. The bridge pier impact protection device with reserved maintenance space according to claim 2, characterized in that: The pier impact protection device (1) has a second connecting waist beam (5) on both the inner wall and the outer wall of the pier.

4. The pier impact protection device with reserved maintenance space according to claim 3, characterized in that: Elastic connectors (3) are provided between the first connecting waist beam (4) and between the second connecting waist beam (5).

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

6. A bridge pier impact protection device with reserved maintenance space according to claim 1, characterized in that: The elastic connector (3) includes an outer steel component (3-2), in which an inner assembly cavity is formed, and a steel spring (3-3) is provided in the inner assembly cavity. One end of the steel spring (3-3) is connected to an embedded steel component (3-1) inserted therein.

7. A bridge pier impact protection device with reserved maintenance space according to claim 6, characterized in that: 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. A bridge pier impact protection device with reserved maintenance space according to claim 7, characterized in that: The space between the embedded steel component (3-1) and the outer steel component (3-2) is filled with an internal asphalt cementitious material.

9. A bridge pier impact protection device with reserved maintenance space according to claim 1, characterized in that: The pier impact protection device (1) includes an inner steel enclosure (1-1) located in the inner ring, a flexible filler (1-2) provided outside the inner steel enclosure (1-1), a hexagonal multi-directional fiber composite energy-absorbing material (1-3) provided outside the flexible filler (1-2), and a steel-plastic composite material (1-4) provided outside the hexagonal multi-directional fiber composite energy-absorbing material (1-3).

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