Ecc bridge pier column anti-collision module

Abstract

The utility model discloses ECC bridge pier column anti -collision module relates to bridge anti -collision technical field, and its technical key points include ferrule, arc support plate and anti -collision shell, the ferrule fixedly fits in the outside of bridge pier column, the arc support plate fits in the outside of ferrule, the anti -collision shell fits in the outside of arc support plate, the anti -collision shell is formed by two half ring -shaped casing splicing, two ends of anti -collision shell are provided with T type splicing piece and T type splicing groove respectively, T type splicing piece is matched with T type splicing groove, the inner wall of anti -collision shell is provided with T type sliding block, the outer wall of arc support plate is provided with T type sliding slot matched with T type sliding block. Technical effect is through using the anti -collision shell formed by two half ring -shaped casing splicing, cooperate the use of arc support plate, when anti -collision shell is damaged, can replace maintenance to anti -collision shell fast, reduce operation difficulty, accelerate construction progress.

Description

Technical Field

[0001] This utility model relates to the field of bridge anti-collision technology, specifically to the ECC bridge pier anti-collision module. Background Technology

[0002] With the rapid development of urban traffic and highways in my country, accidents involving vehicles colliding with bridge piers occur frequently, often resulting in tragic accidents with fatalities and damage to the piers, affecting the overall structural safety of the bridge. To ensure the safety of bridge piers and bridges, and to reduce vehicle damage and injuries, installing anti-collision devices on piers close to roads is particularly necessary. Currently, anti-collision devices for highway and urban bridge piers are generally divided into two categories: rigid anti-collision devices and flexible anti-collision devices.

[0003] The existing Chinese patent with publication number CN221072414U discloses a bridge pier anti-collision device, including: a bridge pier column, a steel sleeve sleeved on the outer wall of the bridge pier column; a corrugated energy-dissipating steel plate disposed on the outside of the steel sleeve; and an annular anti-collision shell disposed on the outside of the corrugated energy-dissipating steel plate.

[0004] Regarding the aforementioned technologies, the inventors have discovered at least the following problems: the annular anti-collision shell in the aforementioned technologies is an integral structure, which is troublesome to install on bridge piers, making it difficult to replace and maintain the annular anti-collision shell after it is damaged by a collision, resulting in slow construction progress.

[0005] Therefore, we propose an ECC bridge pier anti-collision module. Utility Model Content

[0006] (a) Technical problems to be solved

[0007] To address the shortcomings of existing technologies, this utility model provides an ECC bridge pier anti-collision module, which solves the problem that the ring-shaped anti-collision shell in the above-mentioned technologies is an integral structure, which is troublesome to install on bridge piers and makes it difficult to replace and maintain the ring-shaped anti-collision shell after it is damaged by collision, resulting in slow construction progress.

[0008] (II) Technical Solution

[0009] To achieve the above objectives, this utility model provides the following technical solution: an ECC bridge pier anti-collision module, comprising a sleeve, an arc-shaped support plate, and an anti-collision shell, wherein the sleeve is fixedly fitted onto the outside of the bridge pier, the arc-shaped support plate is fitted onto the outside of the sleeve, and the anti-collision shell is fitted onto the outside of the arc-shaped support plate;

[0010] The anti-collision shell is composed of two semi-annular shells spliced ​​together. T-shaped splicing blocks and T-shaped splicing grooves are respectively provided at both ends of the anti-collision shell. The T-shaped splicing blocks and T-shaped splicing grooves are adapted to each other. T-shaped sliders are provided on the inner wall of the anti-collision shell, and T-shaped sliding grooves adapted to the T-shaped sliders are provided on the outer wall of the arc-shaped support plate.

[0011] By adopting the above technical solution, the anti-collision shell, which is formed by splicing two semi-annular shells, and in conjunction with the use of the arc-shaped support plate, allows the two semi-annular shells to be inserted from both sides of the bridge pier during installation. The T-shaped sliders on the inner side of the semi-annular shells slide into the T-shaped grooves on the outer wall of the arc-shaped support plate, while the T-shaped splicing blocks of the two semi-annular shells slide into their corresponding T-shaped splicing slots. Finally, a second bolt is used to fix the two ends of the two semi-annular shells. This allows the anti-collision shell to be fitted over the bridge pier for protection. When the anti-collision shell is damaged, the two semi-annular shells can be removed from both sides of the bridge pier for replacement and maintenance, reducing operational difficulty and accelerating construction progress.

[0012] Preferably, the sleeve is composed of two semi-circular steel hoops spliced ​​together, with the two ends of the two semi-circular steel hoops fixedly connected by a first bolt, and the two arc-shaped support plates respectively sleeved on the outside of the two semi-circular steel hoops.

[0013] By adopting the above technical solution, during installation, the two semi-circular steel hoops can be inserted from both sides of the bridge pier column, and then the two semi-circular steel hoops can be fixed with the first bolt.

[0014] Preferably, a rubber pad is fixedly connected to the inner wall of the semi-annular steel hoop, and the rubber pad is pressed against the bridge pier.

[0015] By adopting the above technical solution, a buffering effect can be achieved between the semi-circular steel hoop and the bridge pier, reducing the damage caused by the semi-circular steel hoop to the bridge pier.

[0016] Preferably, the arc-shaped support plate has multiple cavities inside, and the cavities are filled with polyurethane foam layers.

[0017] By adopting the above technical solution, the buffering performance of the arc-shaped support plate can be improved, so that when the arc-shaped support plate is under stress, the polyurethane foam layer can buffer and absorb the impact force, further reducing the impact on the bridge pier.

[0018] Preferably, a second bolt is inserted at both ends of the semi-annular shell, and the two ends of the two semi-annular shells are fixedly connected by the second bolt.

[0019] By adopting the above technical solution, the two semi-annular shells can be fixed.

[0020] Preferably, the semi-annular shell is made of ECC material, which is a fiber-reinforced cement-based composite material.

[0021] By adopting the above technical solutions, ECC material is a new type of fiber-reinforced cement-based composite material, known as "flexible" concrete. It has strong ductility and energy dissipation capacity. ECC also has significant strain hardening, super ductility and outstanding crack width control capabilities, as well as excellent energy absorption capacity, which can improve the impact protection and energy absorption effect of the impact-resistant shell.

[0022] Preferably, the interior of the semi-annular shell is provided with a corrugated energy-consuming steel plate, and the interior of the semi-annular shell is provided with foamed polypropylene energy-consuming material.

[0023] By adopting the above technical solution, when the anti-collision shell is impacted, the corrugated energy-absorbing steel plate and the foamed polypropylene energy-absorbing material can deform and absorb the impact energy generated by the impact, reduce the transmission of impact force to the bridge pier, protect the bridge pier, and reduce the degree of damage to vehicles and people in the impact.

[0024] (III) Beneficial Effects

[0025] Compared with the prior art, the present invention provides a method with the following beneficial effects:

[0026] 1. This utility model uses a crashproof shell composed of two semi-annular shells spliced ​​together, in conjunction with an arc-shaped support plate. During installation, the two semi-annular shells are fitted onto the sides of the bridge pier, allowing the T-shaped sliders inside the semi-annular shells to slide along the T-shaped grooves on the outer wall of the arc-shaped support plate. Simultaneously, the T-shaped splicing blocks of the two semi-annular shells slide into their corresponding T-shaped splicing slots. Finally, a second bolt is used to fix both ends of the two semi-annular shells, thus providing protection for the bridge pier. When the crashproof shell is damaged, simply loosen the second bolt to remove the two semi-annular shells from both sides of the bridge pier, allowing for replacement and maintenance. This reduces operational difficulty and accelerates construction progress.

[0027] 2. By setting T-shaped splicing blocks and T-shaped splicing grooves, as well as T-shaped sliders and T-shaped sliding grooves, this utility model can further reduce the splicing difficulty of two semi-circular shells and make operation more convenient. Attached Figure Description

[0028] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0029] Figure 2 This is a schematic diagram of the semi-annular shell of this utility model;

[0030] Figure 3 This is a schematic diagram of the structure of the hoop of this utility model;

[0031] Figure 4 This is a top view cross-sectional structural diagram of the present invention.

[0032] In the picture:

[0033] 1. Hoop; 11. Semi-circular steel hoop; 12. First bolt; 13. Rubber pad;

[0034] 2. Arc-shaped support plate; 21. T-shaped groove; 22. Polyurethane foam layer;

[0035] 3. Anti-collision shell; 31. Semi-circular shell; 32. T-shaped splicing block; 33. T-shaped splicing groove; 34. T-shaped slider; 35. Second bolt; 36. Corrugated energy-consuming steel plate. Detailed Implementation

[0036] In this utility model, unless otherwise stated, the orientations used, such as "up" and "down", usually refer to the direction shown in the accompanying drawings, or to the vertical, perpendicular, or gravitational direction; similarly, for ease of understanding and description, "left" and "right" usually refer to the left and right shown in the accompanying drawings; "inner" and "outer" refer to the inner and outer contours of each component itself, but the above directional terms are not used to limit this utility model.

[0037] This utility model provides a technical solution:

[0038] Please see Figures 1-4 The ECC bridge pier anti-collision module includes a sleeve 1, an arc-shaped support plate 2, and an anti-collision shell 3. The sleeve 1 is fixedly fitted on the outside of the bridge pier, the arc-shaped support plate 2 is fitted on the outside of the sleeve 1, and the anti-collision shell 3 is fitted on the outside of the arc-shaped support plate 2. By setting the anti-collision shell 3, the bridge pier can be protected against collisions.

[0039] Specifically, the sleeve 1 is composed of two semi-circular steel hoops 11 spliced ​​together. The two ends of the two semi-circular steel hoops 11 are fixedly connected by the first bolt 12. The two arc-shaped support plates 2 are respectively sleeved on the outside of the two semi-circular steel hoops 11. By setting the sleeve 1, during installation, the two semi-circular steel hoops 11 can be sleeved from both sides of the bridge pier column, and then the two semi-circular steel hoops 11 are fixed by the first bolt 12.

[0040] Among them, a rubber pad 13 is fixedly connected to the inner wall of the semi-circular steel hoop 11. The rubber pad 13 is pressed between the semi-circular steel hoop 11 and the bridge pier. By setting the rubber pad 13, a buffering effect can be played between the semi-circular steel hoop 11 and the bridge pier, reducing the damage caused by the semi-circular steel hoop 11 to the bridge pier.

[0041] The curved support plate 2 has multiple cavities inside, which are filled with polyurethane foam layers 22. By setting polyurethane foam layers 22, the buffering performance of the curved support plate 2 can be improved, so that when the curved support plate 2 is under force, the polyurethane foam layers 22 can buffer and absorb the impact force, further reducing the impact on the bridge pier.

[0042] Specifically, the anti-collision shell 3 is composed of two semi-annular shells 31 spliced ​​together. T-shaped splicing blocks 32 and T-shaped splicing grooves 33 are respectively provided at both ends of the anti-collision shell 3. The T-shaped splicing blocks 32 and T-shaped splicing grooves 33 are adapted to each other. A T-shaped slider 34 is provided on the inner wall of the anti-collision shell 3, and a T-shaped sliding groove 21 adapted to the T-shaped slider 34 is provided on the outer wall of the arc-shaped support plate 2. Second bolts 35 are inserted into both ends of the semi-annular shells 31, and the two ends of the two semi-annular shells 31 are fixedly connected by the second bolts 35. By using the anti-collision shell 3 composed of two semi-annular shells 31 spliced ​​together, in conjunction with the use of the arc-shaped support plate 2, the two semi-annular shells 3 can be connected during installation. The annular shell 31 is inserted from both sides of the bridge pier, allowing the T-shaped slider 34 inside the semi-annular shell 31 to slide into the T-shaped groove 21 on the outer wall of the arc-shaped support plate 2. At the same time, the T-shaped splicing blocks 32 of the two semi-annular shells 31 slide into the corresponding T-shaped splicing grooves 33. Finally, the two ends of the two semi-annular shells 31 are fixed with the second bolt 35, so that the anti-collision shell 3 can be fitted on the outside of the bridge pier for protection. When the anti-collision shell 3 is damaged, the two semi-annular shells 31 can be removed from both sides of the bridge pier by simply loosening the second bolt 35, so that the anti-collision shell 3 can be replaced and maintained, reducing the difficulty of operation and speeding up the construction progress.

[0043] The semi-annular shell 31 is made of ECC material, which is a fiber-reinforced cement-based composite material with an ultimate tensile strain greater than 4%. The main components of the ECC material matrix are cement, mineral admixtures, and quartz stone, with an average particle size of no more than 0.15 mm. The fiber used is polyvinyl alcohol fiber. A corrugated energy-absorbing steel plate 36 and a foamed polypropylene energy-absorbing material are installed inside the semi-annular shell 31. By incorporating the corrugated energy-absorbing steel plate 36 and the foamed polypropylene energy-absorbing material, when the anti-collision shell 3 is impacted, the corrugated energy-absorbing steel plate 36 and the foamed polypropylene energy-absorbing material can deform and absorb the impact energy generated by the impact, reducing the transmission of impact force to the bridge piers and protecting the bridge piers, while also reducing the degree of damage to vehicles and personnel in the impact.

[0044] In practical use, the working principle of this utility model is as follows:

[0045] First, during installation, the two semi-circular steel hoops 11 can be inserted from both sides of the bridge pier column, and then the two semi-circular steel hoops 11 can be fixed with the first bolt 12.

[0046] When installing the anti-collision shell 3, the two semi-annular shells 31 can be inserted from both sides of the bridge pier, so that the T-shaped sliders 34 on the inner side of the semi-annular shell 31 slide into the T-shaped grooves 21 on the outer wall of the arc-shaped support plate 2. At the same time, the T-shaped splicing blocks 32 of the two semi-annular shells 31 slide into the corresponding T-shaped splicing grooves 33. Finally, the two ends of the two semi-annular shells 31 are fixed with the second bolts 35, so that the anti-collision shell 3 can be placed on the outside of the bridge pier for protection.

[0047] When the crash protection shell 3 is damaged, simply loosen the second bolt 35 to remove the two semi-annular shells 31 from both sides of the bridge pier, and then the crash protection shell 3 can be replaced and maintained, reducing the difficulty of operation and speeding up the construction progress.

[0048] In summary, this ECC bridge pier anti-collision module uses an anti-collision shell 3 composed of two semi-annular shells 31 spliced ​​together, in conjunction with an arc-shaped support plate 2. During installation, the two semi-annular shells 31 are inserted from both sides of the bridge pier, allowing the T-shaped sliders 34 on the inner side of the semi-annular shells 31 to slide along the T-shaped grooves 21 on the outer wall of the arc-shaped support plate 2. Simultaneously, the T-shaped splicing blocks 32 of the two semi-annular shells 31 slide into their corresponding T-shaped splicing slots 33. Finally, the two ends of the two semi-annular shells 31 are fixed with second bolts 35, thus allowing the anti-collision shell 3 to be fitted over the bridge pier for protection. When the anti-collision shell 3 is damaged, simply loosening the second bolts 35 allows the two semi-annular shells 31 to be removed from both sides of the bridge pier, enabling replacement and maintenance of the anti-collision shell 3, reducing operational difficulty and accelerating construction progress.

[0049] The above are merely specific embodiments of this utility model, but the technical features of this utility model are not limited thereto. Any simple changes, equivalent substitutions, or modifications made based on this utility model to solve essentially the same technical problems and achieve essentially the same technical effects are all covered within the protection scope of this utility model.

Claims

1. An ECC bridge pier anti-collision module, comprising a sleeve (1), an arc-shaped support plate (2), and an anti-collision shell (3), characterized in that: The sleeve (1) is fixedly fitted on the outside of the bridge pier, the arc-shaped support plate (2) is fitted on the outside of the sleeve (1), and the anti-collision shell (3) is fitted on the outside of the arc-shaped support plate (2); The anti-collision shell (3) is composed of two semi-annular shells (31). T-shaped splicing blocks (32) and T-shaped splicing grooves (33) are respectively provided at both ends of the anti-collision shell (3). The T-shaped splicing blocks (32) and T-shaped splicing grooves (33) are adapted to each other. T-shaped sliders (34) are provided on the inner wall of the anti-collision shell (3). T-shaped grooves (21) adapted to the T-shaped sliders (34) are provided on the outer wall of the arc-shaped support plate (2).

2. The ECC bridge pier anti-collision module according to claim 1, characterized in that: The sleeve (1) is made up of two semi-circular steel hoops (11) spliced ​​together. The two ends of the two semi-circular steel hoops (11) are fixedly connected by the first bolt (12). The two arc-shaped support plates (2) are respectively sleeved on the outside of the two semi-circular steel hoops (11).

3. The ECC bridge pier anti-collision module according to claim 2, characterized in that: A rubber pad (13) is fixedly connected to the inner wall of the semi-circular steel hoop (11), and the rubber pad (13) is pressed against the semi-circular steel hoop (11) and the bridge pier column.

4. The ECC bridge pier anti-collision module according to claim 1, characterized in that: The arc-shaped support plate (2) has multiple cavities inside, and the cavities are filled with polyurethane foam layers (22).

5. The ECC bridge pier anti-collision module according to claim 1, characterized in that: Both ends of the semi-annular shell (31) are fitted with second bolts (35), and the two ends of the two semi-annular shells (31) are fixedly connected by the second bolts (35).

6. The ECC bridge pier anti-collision module according to claim 1, characterized in that: The semi-annular shell (31) is made of ECC material, which is a fiber-reinforced cement-based composite material.

7. The ECC bridge pier anti-collision module according to claim 1, characterized in that: The interior of the semi-annular shell (31) is provided with a corrugated energy-consuming steel plate (36) and a foamed polypropylene energy-consuming material.

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