CN220117081U

CN220117081U - Pier protector

Info

Publication number: CN220117081U
Application number: CN202321485975.9U
Authority: CN
Inventors: 龙晓鸿; 桂石海; 马永涛; 李宗霖; 卢春德
Original assignee: Huazhong University of Science and Technology
Current assignee: Huazhong University of Science and Technology
Priority date: 2023-06-12
Filing date: 2023-06-12
Publication date: 2023-12-01
Anticipated expiration: 2033-06-12

Abstract

The utility model belongs to the technical field related to bridge protection, and discloses a bridge pier protection device, which comprises a plurality of connected anti-collision modules, wherein each anti-collision module comprises a web lattice and an FRP panel, and the web lattice is wrapped by the FRP panels; the web plate lattice comprises a plurality of FRP web plates, and the FRP web plates are connected to form a plurality of lattices arranged in an array; each grid is filled with energy-consuming core materials, and all the energy-consuming core materials in the grids are connected. The bridge pier protecting device has the characteristics of light weight, high strength, high energy absorption and low cost, is simple in structure and convenient to construct, and can be replaced immediately when the device is damaged, so that the bridge pier protecting device is quite convenient.

Description

Pier protector

Technical Field

The utility model belongs to the technical field related to bridge protection, and particularly relates to a bridge pier protection device.

Background

With the rapid development of economy and the continuous and deep progress of urban transportation, the demand of urban transportation is continuously improved, and the urban transportation system is gradually perfected. As the demand of bridges crossing railways and highway lines increases, more and more urban cross-line bridges are designed and used, which is also a development trend of urban modernization. Urban population is increasing, the number of automobiles is continuously increased, and accidents caused by the fact that vehicles are overtime, overspeed, drivers drive illegally, traffic signs, imperfect anti-collision facilities and the like occur. It can be seen from various collision accidents that the collision of vehicles against the bridge is not an example, and once the collision event occurs, the vehicles are damaged when the vehicles are light, the personnel are injured, the bridge pier is broken when the vehicles are heavy, the bridge collapses, and the vehicles destroy the people to death, and meanwhile, the traffic condition can be influenced. Therefore, the urban bridge and the highway bridge are not provided with the anti-collision facilities, and can cause great potential safety hazards.

Through installing crashproof facility, like crashproof guardrail, independent crashproof mound, crashproof pouring jacket etc. can alleviate the impact effect of vehicle to the pier, can effectually protect bridge, car, people's safety. However, the existing protection device has high cost, complex structure or difficult replacement, and most of the protection devices adopt steel plates as shells of the protection devices and rubber as energy dissipation buffer materials, but steel materials are easy to corrode, have high rigidity, and have limited energy dissipation capacity of the rubber materials and limited protection effect on vehicles.

Disclosure of Invention

Aiming at the defects or improvement demands of the prior art, the utility model provides a bridge pier protecting device which is simple in structure and good in protecting capability; and the later maintenance and replacement of the anti-collision vehicle are very convenient.

In order to achieve the above object, according to one aspect of the present utility model, there is provided a bridge pier protecting apparatus comprising a plurality of connected crash modules, the crash modules comprising a web lattice and FRP panels, the web lattice being wrapped with a plurality of the FRP panels; the web plate lattice comprises a plurality of FRP web plates, and the FRP web plates are connected to form a plurality of lattices arranged in an array; each grid is filled with energy-consuming core materials, and all the energy-consuming core materials in the grids are connected.

Further, the web lattice is a single-layer orthogonal lattice, a double-layer staggered lattice, a hexagonal lattice or a trapezoidal lattice.

Further, the FRP web and the FRP panel are made of fiber reinforced composite materials.

Further, the energy-consumption core material is foamed aluminum material, polyurethane foam or PVC foam.

Further, the anti-collision module comprises a corner anti-collision module, a front anti-collision module and a side anti-collision module, wherein the corner anti-collision module, the front anti-collision module and the side anti-collision module are spliced together through a mortise and tenon structure to form a whole.

Further, the corner anti-collision module is connected with the front anti-collision module and the side anti-collision module; the side anti-collision module is arranged along a traffic lane; the thickness of the front anti-collision module is larger than that of the side anti-collision module.

Further, two opposite ends of the front anti-collision module and the side anti-collision module are respectively provided with a tenon structure, and the sizes and the shapes of all tenon structures are completely the same; the both ends of corner anticollision module set up to mortise structure, its structure and size respectively with the shape and the size phase-match of corresponding tenon structure.

Further, the protection device further comprises a composite material plate, the composite material plate comprises a first plane, a second plane and an inclined plane, one side of the first plane is vertically connected with one side of the second plane, the inclined plane is connected with the other side of the first plane and the other side of the second plane, and the composite material plate is respectively connected with one end, far away from the ground, of the anti-collision module and the side face of the pier through the first plane and the second plane.

Further, diamond holes are formed in the walls of each grid, and the energy-consumption core materials are connected through the diamond holes.

Further, a plurality of the crash modules are spaced apart and connected together by at least one ferrule; two opposite ends of the anti-collision module are respectively provided with a groove, and the grooves are used for accommodating the hoops.

In general, compared with the prior art, the bridge pier protecting device provided by the utility model has the following main beneficial effects:

the FRP is small in density, light in weight, high in specific strength, high in specific rigidity and corrosion resistance, and the FRP is used as an anti-collision shell, so that the anti-collision and anti-corrosion functions are met.

2. And the energy-consumption core material is cast and molded in the latticed web plate, and the web plate and the energy-consumption core material jointly act to generate large plastic deformation, so that the anti-collision energy-absorbing capacity is improved.

3. The bridge pier protecting device has the characteristics of light weight, high strength, high energy absorption and low cost, is simple in structure and convenient to construct, and can be replaced immediately when the device is damaged, so that the bridge pier protecting device is quite convenient.

Drawings

Fig. 1 is a schematic view of a bridge pier protecting apparatus according to an embodiment of the present utility model;

FIG. 2 is a cross-sectional view of the bridge pier protecting apparatus of FIG. 1 taken along the direction A-A;

FIG. 3 is an assembled schematic view of an anti-collision module of the pier protection apparatus of FIG. 1;

fig. 4 is a schematic view illustrating a use state of a bridge pier protecting apparatus according to another embodiment of the present utility model;

FIG. 5 is a cross-sectional view of the bridge pier protecting apparatus of FIG. 4 taken along the direction B-B;

fig. 6 is a schematic view of an anti-collision module of the pier protection apparatus of fig. 4;

FIG. 7 is a schematic view of the FRP web of the anti-collision module of the pier protection apparatus of FIG. 4;

FIG. 8 is a cross-sectional view of the FRP web of FIG. 7 taken in the direction C-C;

FIG. 9 is a cross-sectional view of the FRP web of FIG. 7 taken in the direction D-D;

FIG. 10 is a construction type diagram of an FRP web of a pier protecting apparatus, wherein (a) is a single-layered orthogonal lattice; (b) a bilayer orthogonal lattice; (c) a double-layer staggered lattice; (d) a hexagonal lattice; (d) a trapezoidal lattice.

The same reference numbers are used throughout the drawings to reference like elements or structures, wherein: the novel energy-saving building block comprises a 1-FRP panel, a 2-FRP web, a 3-energy-consuming core material, a 4-pier, 5-rubber particles, a 6-composite material plate, a 7-traffic lane, an 8-front anti-collision module, a 9-side anti-collision module, a 10-corner anti-collision module and 11-hoops.

Detailed Description

The present utility model will be described in further detail with reference to the drawings and examples, in order to make the objects, technical solutions and advantages of the present utility model more apparent. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the utility model. In addition, the technical features of the embodiments of the present utility model described below may be combined with each other as long as they do not collide with each other.

The fiber reinforced composite material (fiber reinforced polymer, abbreviated as FRP) is a high-performance material formed by mixing a fiber material and a matrix material according to a certain proportion, has excellent characteristics of light weight, high strength, good fatigue performance, corrosion resistance and the like, is widely used in the building industry, and can replace a steel plate to be used as an anti-collision shell.

Example 1

Referring to fig. 1, 2 and 3, a bridge pier 4 protecting device includes a composite material plate 6, a front anti-collision module 8, a side anti-collision module 9 and a corner anti-collision module 10 connected with each other, wherein the front anti-collision module 8, the side anti-collision module 9 and the corner anti-collision module 10 are connected to form a cylinder. The shape of the cross section of the accommodating cavity formed by the cylindrical body perpendicular to the length direction is the same as the shape of the corresponding bridge pier 4, and the size of the accommodating cavity is larger than that of the bridge pier 4. When the bridge pier protection device is used, the protection device is sleeved outside the bridge pier 4, a gap is formed between the protection device and the bridge pier 4, and rubber particles 5 are filled in the gap.

The composite plate 6 is a frame body formed by rotating a triangular surface according to a certain path, and the shape of the through hole formed by the frame body is the same as that of the bridge pier 4. The corresponding triangular surface is a right-angled triangular surface, the surface of the composite material plate 6 contacted with the cylindrical body is a plane, the surface contacted with the bridge pier 4 is also a plane, and the sealing treatment is carried out through sealant. The other surface of the composite material plate 6 is an inclined plane, so that water accumulation at the top of the bridge pier 4 protecting device can be prevented, the bridge pier 4 protecting device is well protected, and the lower end of the protecting device is directly placed on the ground on the side face of the bridge pier 4. Since the side surface of the bridge pier 4 parallel to the traffic lane 7 is less likely to be hit by a vehicle, the guard portion of the side surface of the bridge pier 4 perpendicular to the traffic lane 7 is thicker than the car-collision guard portion of the side surface of the bridge pier 4 parallel to the traffic lane 7. The thickness of the front crash module 8 is greater than the thickness of the side crash module 9.

The front anti-collision module 8, the side anti-collision module 9 and the corner anti-collision module 10 are spliced together through a mortise and tenon structure to form a whole. The front anti-collision module 8 and the two opposite ends of the side anti-collision module 9 are respectively provided with a tenon structure, and the sizes and the shapes of all tenon structures are identical, so that the tenon structures cannot be confused and reversed during installation. The two ends of the corner anti-collision module 10 are provided with mortise structures, and the structures and the sizes of the mortise structures are respectively matched with the shapes and the sizes of the corresponding tenon structures. Of course, when the lengths of the front anti-collision module 8 and the side anti-collision module 9 are large, the front anti-collision module 8 and the side anti-collision module 9 can be divided into a plurality of sections, the middle division part also adopts a mortise-tenon structure, but the two ends of the spliced front anti-collision module 8 and side anti-collision module 9 are still in a tenon structure, and the front anti-collision module 8 and the side anti-collision module 9 are assembled directly up and down during installation, so that the assembly is very convenient.

The front side collision avoidance module 8, the side collision avoidance module 9 and the corner collision avoidance module 10 have the same structure, but have different shapes and sizes. For convenience of description, the crash module is collectively referred to. The anti-collision module comprises a web plate lattice and an FRP panel 1 which are connected, and all surfaces of the web plate lattice are covered by the FRP panel 1. The web plate lattice comprises a plurality of FRP web plates 2, and the FRP web plates 2 are connected in an intersecting manner to form a plurality of lattices arranged in an array. Each grid is filled with energy-consuming core materials 3, and all the energy-consuming core materials 3 in the grids are connected.

Referring to fig. 10, the web lattice may be a single-layer orthogonal lattice, a double-layer dislocation lattice, a hexagonal lattice, a trapezoidal lattice, etc.

The wall of each grid is provided with diamond holes, and the energy-consumption core materials 3 are connected through the diamond holes. The FRP web 2 and the FRP panel 1 are made of fiber reinforced composite materials (fiber reinforced polymer, abbreviated as FRP); the energy-consumption core material 3 is made of foamed aluminum material, and can also be made of other foam materials such as polyurethane foam, PVC foam and the like, and the foam materials such as polyurethane foam, PVC foam and the like have low melting points, so that the foam materials can be tightly connected with the web plate by casting the semi-solid energy-consumption core material 3 slurry into the lattice, but the foam materials such as foamed aluminum and the like have high melting points, so that the energy-consumption core material 3 can be connected into a whole, the slurry of the energy-consumption core material 3 is cast by utilizing a steel template, and then the FRP web plate 2 is tightly connected with the energy-consumption core material 3, so that the foam materials have light weight and good energy consumption and have good buffering and energy consumption effects.

Example 2

Referring to fig. 4, 5 and 6, the protection device is a split assembly, and includes a plurality of anti-collision modules that are disposed at intervals and connected, and each anti-collision module is independently installed. The anti-collision modules are connected together through at least one hoop 11, the size of each anti-collision module is consistent, the protection device is directly close to the pier 4, and the lower end of the protection device is directly placed on the ground on the side face of the pier 4. The plurality of anti-collision modules may be uniformly arranged along the outer side of the bridge pier 4 or may be unevenly arranged. Since the side of the bridge pier 4 parallel to the traffic lane 7 is less likely to be hit by the vehicle, the collision avoidance modules arranged on the side of the bridge pier 4 perpendicular to the traffic lane 7 can be dense, while the collision avoidance modules arranged on the side of the bridge pier 4 parallel to the traffic lane 7 can be evacuated, and are preferably symmetrically arranged along the center line of the bridge pier 4.

In order to facilitate the installation of the ferrule 11, a groove is respectively formed at two opposite ends of the anti-collision module, and the groove is used for accommodating the ferrule 11 so as to prevent the ferrule 11 from sliding down. The material of the ferrule 11 may be arbitrarily selected.

Referring to fig. 7, 8 and 9, the web lattices of embodiments 1 and 2 are all single-layer orthogonal lattices, the internal space of the anti-collision module is divided into a plurality of small lattices by the orthogonal lattices, and the energy-consuming core material 3 is filled in each lattice, so that the energy-consuming core material 3 and the FRP web 2 can be tightly connected to each other to play a role together, and then all the side centers of each lattice are provided with a diamond hole, so that the energy-consuming core material 3 in all the lattices can be connected into a whole, and the FRP web 2 is wrapped inside.

It will be readily appreciated by those skilled in the art that the foregoing description is merely a preferred embodiment of the utility model and is not intended to limit the utility model, but any modifications, equivalents, improvements or alternatives falling within the spirit and principles of the utility model are intended to be included within the scope of the utility model.

Claims

1. A pier protector, its characterized in that:

the protection device comprises a plurality of connected anti-collision modules, wherein each anti-collision module comprises a web lattice and an FRP panel, and the web lattice is wrapped by the FRP panels; the web plate lattice comprises a plurality of FRP web plates, and the FRP web plates are connected to form a plurality of lattices arranged in an array; each grid is filled with energy-consuming core materials, and all the energy-consuming core materials in the grids are connected.

2. The pier protection apparatus of claim 1, wherein: the web lattice is a single-layer orthogonal lattice, a double-layer staggered lattice, a hexagonal lattice or a trapezoid lattice.

3. The pier protection apparatus of claim 1, wherein: the FRP web plate and the FRP panel are made of fiber reinforced composite materials.

4. The pier protection apparatus of claim 1, wherein: the energy-consumption core material is foamed aluminum material, polyurethane foam or PVC foam.

5. The pier protection apparatus of claim 1, wherein: the anti-collision module comprises a corner anti-collision module, a front anti-collision module and a side anti-collision module, wherein the corner anti-collision module, the front anti-collision module and the side anti-collision module are spliced together through a mortise and tenon structure to form a whole.

6. The pier protection apparatus of claim 5, wherein: the corner anti-collision module is connected with the front anti-collision module and the side anti-collision module; the side anti-collision module is arranged along a traffic lane; the thickness of the front anti-collision module is larger than that of the side anti-collision module.

7. The pier protection apparatus of claim 5, wherein: the two opposite ends of the front anti-collision module and the side anti-collision module are respectively provided with a tenon structure, and the sizes and the shapes of all tenon structures are completely the same; the both ends of corner anticollision module set up to mortise structure, its structure and size respectively with the shape and the size phase-match of corresponding tenon structure.

8. The pier protection apparatus of claim 5, wherein: the protection device further comprises a composite material plate, the composite material plate comprises a first plane, a second plane and an inclined plane, one side of the first plane is vertically connected with one side of the second plane, the inclined plane is connected with the other side of the first plane and the other side of the second plane, and the composite material plate is respectively connected with one end, far away from the ground, of the anti-collision module and the side face of the pier through the first plane and the second plane.

9. The pier protection apparatus of any one of claims 1-4, wherein: and diamond holes are formed in the walls of each grid, and the energy-consumption core materials are connected through the diamond holes.

10. The pier protection apparatus of any one of claims 1-4, wherein: the anti-collision modules are arranged at intervals and are connected together through at least one hoop; two opposite ends of the anti-collision module are respectively provided with a groove, and the grooves are used for accommodating the hoops.