CN215289861U

CN215289861U - Super high vehicle strikes bridge superstructure protector

Info

Publication number: CN215289861U
Application number: CN202121118742.6U
Authority: CN
Inventors: 邹育麟; 张景峰; 孔令云; 阳川; 彭小明; 陈镇
Original assignee: Sichuan Yanjiang Panning Expressway Co ltd
Current assignee: Sichuan Yanjiang Panning Expressway Co ltd
Priority date: 2021-05-24
Filing date: 2021-05-24
Publication date: 2021-12-24
Anticipated expiration: 2031-05-24

Abstract

The utility model discloses an superelevation vehicle striking bridge superstructure protector, include: the diffusion module is used for directly receiving the impact of the ultrahigh vehicle and dispersing the impact force; the energy consumption module is used for dissipating impact force generated in the collision process; the fixing module is used for connecting the protective device and the bridge; a plurality of energy dissipation modules are arranged between the fixing module and the diffusion module, each energy dissipation module comprises a tubular container, and materials capable of absorbing impact energy are filled in the tubular containers. The utility model discloses a protector can show the reduction vehicle collision power, through numerical simulation calculation, the maximum collision power reduction degree reaches 40%, alleviates the local damage of bridge superstructure, effectively protects bridge superstructure; under the impact of an ultrahigh vehicle, the protective device has small self-damage deformation and can be repeatedly used; under the condition that the local component is damaged, the local component can be replaced, so that resources can be saved, and the cost can be reduced; the whole protection device is simple in structure and convenient to install.

Description

Super high vehicle strikes bridge superstructure protector

Technical Field

The utility model relates to a bridge engineering technical field specifically is a super high vehicle striking bridge superstructure protector.

Background

At present, the frequent occurrence of accidents that ultra-high vehicles impact the superstructure of a overpass bridge brings serious threats to the safe operation of the bridge structure. According to statistics, more than half of overpasses in Beijing city cities suffer from ultrahigh vehicle impact; in the new york state of the united states, over 550 accidents occurred since 2015 when only overpasses on highways were hit. After the upper structure of the bridge is impacted by the ultrahigh vehicle, traffic is blocked slightly to cause road congestion, and the bridge collapses seriously to cause casualties, so that the upper structure of the bridge needs to be protected to reduce the damage of the upper structure of the bridge under the impact of the ultrahigh vehicle.

At present, aiming at the problem that an ultrahigh vehicle collides the upper structure of a bridge, the problem is mainly solved by setting two measures of active collision avoidance and passive collision avoidance, wherein the active collision avoidance mainly guides the vehicle in a signal mode to early warn possible collision accidents, however, the measures are not always effective due to the restriction of various factors such as signal interference, sight line influence and the like. For passive collision avoidance, collision avoidance devices are often arranged to cause collision with vehicles, and the vehicles are prevented from directly impacting the upper structure of the bridge. However, the following disadvantages mainly exist for the currently common passive collision avoidance devices: firstly, under the collision of a vehicle with high collision energy, the collision-prevention device is seriously damaged and deformed; secondly, most of the protection devices are installed in an integral manner, namely, under the condition of local damage, the whole device also needs to be detached for replacement, and the protection devices cannot be used repeatedly; thirdly, the structure of part of the device is complex, and the application of the device in practical engineering is difficult.

SUMMERY OF THE UTILITY MODEL

The purpose of the invention is as follows: in order to overcome the deficiencies in the prior art, the utility model provides a superelevation vehicle striking bridge superstructure protector.

The technical scheme is as follows: in order to solve the technical problem, the utility model discloses a protector of super high vehicle striking bridge superstructure, include:

the diffusion module is used for directly receiving the impact of the ultrahigh vehicle and dispersing the impact force;

the energy consumption module is used for dissipating impact force generated in the collision process;

the fixing module is used for connecting the protective device and the bridge;

a plurality of energy dissipation modules are arranged between the fixing module and the diffusion module, each energy dissipation module comprises a tubular container, and materials capable of absorbing impact energy are filled in the tubular containers.

Wherein, the tubular container is a thin-wall steel pipe.

Wherein, the tubular container is a corrugated steel pipe.

Wherein the wall thickness of the tubular container is 1-2 mm.

Wherein the material capable of absorbing impact energy is rubber particles.

Wherein, diffusion module includes the ECC board, set up the reinforcing bar net in the ECC board.

Wherein the thickness of the ECC plate is 6-12 cm.

Wherein, the reinforcing mesh adopts smooth round steel bars with the diameter of 6 mm.

The fixing module is a steel plate with the thickness of 1-2cm, and the steel plate is connected with the bridge through bolts or welding.

Has the advantages that: under the impact of ultrahigh vehicles, the protective device of the utility model can obviously reduce the vehicle impact force, and the maximum impact force reduction degree reaches 40 percent through numerical simulation calculation, thereby reducing the local damage of the bridge superstructure and effectively protecting the bridge superstructure; under the impact of an ultrahigh vehicle, the protective device has small self-damage deformation and can be repeatedly used; under the condition that the local component is damaged, the local component can be replaced, so that resources can be saved, and the cost can be reduced; the whole protection device is simple in structure and convenient to install.

Drawings

Fig. 1 is a schematic structural view of the present invention;

fig. 2 is a front view of the present invention;

fig. 3 is a top view of the present invention;

fig. 4 is a side view of the present invention.

Fig. 5 is a schematic structural diagram of an ECC board.

In the figure: 1-ECC board; 2-reinforcing mesh; 3-a tubular container; 4-rubber particles; 5-a steel plate; 6-connecting bolts; 7-hollow slab bridge superstructure.

Detailed Description

The present invention will be further described with reference to the accompanying drawings.

The utility model discloses a protection device of superelevation vehicle striking bridge superstructure, include: the diffusion module is used for directly receiving the impact of the ultrahigh vehicle and dispersing the impact force; the energy consumption module is used for dissipating impact force generated in the collision process; and the fixing module is used for connecting the protective device and the bridge.

Specifically, as shown in fig. 1 to 5, the diffusion module includes an ECC plate 1, and a steel mesh 2 is disposed in the ECC plate 1; the energy dissipation module comprises a tubular container 3, the tubular container 3 can be a thin-wall steel pipe or a corrugated steel pipe, rubber particles 4 are filled in the tubular container 3, the particle rubber is used as a material for absorbing impact energy, other materials in the prior art which can play a similar role with the particle rubber can also be adopted, and the rubber particles can also enhance the rigidity of the tubular container and the whole protection device. A plurality of tubular containers 3 are uniformly distributed on the back of the ECC plate 1, one end of each tubular container 3 is connected with the ECC plate 1, and the other end of each tubular container is connected with the fixing module. The fixing module can be a steel plate 5, and the steel plate 5 can be fixedly connected with the upper structure of the bridge through bolts.

The ECC plate 1 is made of high-ductility concrete and has a thickness of 6-12 cm. The wall thickness of the tubular container 3 is 1-2mm, the length is 0.1-0.3 m, and the reinforcing mesh 2 is made of smooth round steel bars with the diameter of 6-8 mm. The fixing module is a steel plate with the thickness of 1-2cm, and the steel plate is connected with the upper structure 7 of the hollow slab bridge through bolts or welding.

As shown in fig. 4, under the impact of an ultrahigh vehicle, the ECC plate 1 of the diffusion module is directly impacted by the ultrahigh vehicle, the impact force of the vehicle is dispersed to the whole protection device, then the energy consumption module participates in the work, the impact energy transmitted by the diffusion module is dispersed to each tubular container, the granular rubber inside the tubular container absorbs the energy in the deformation process of the tubular container, and further the impact energy is completely dissipated, the ECC plate 1 has high tensile property, toughness and impact resistance, the damage and deformation under the impact of the vehicle are small, through numerical simulation analysis, the common concrete plate is easy to break and fail after the impact of the ultrahigh vehicle, and the ECC plate 1 has local deformation and concrete damage. After the striking is finished, the module damaged by the striking can be replaced, so that the module can be continuously used at the later stage.

As shown in fig. 5, the steel bars inside the ECC board 1 are uniformly arranged in layers at equal intervals in the longitudinal and transverse directions to form a steel bar mesh 2, and gaps between the steel bars should not be too large, so that the steel bar mesh mainly enhances the impact resistance of the ECC board 1 under the impact of an ultrahigh vehicle, and reduces the damage and deformation of the ECC board 1.

Claims

1. An ultra-high vehicle strikes bridge superstructure protector, characterized by comprising:

the fixing module is used for connecting the protective device and the bridge;

2. The apparatus of claim 1, wherein the apparatus comprises: the tubular container is a thin-wall steel tube.

3. The apparatus of claim 1, wherein the apparatus comprises: the tubular container is a corrugated steel pipe.

4. The apparatus of claim 2 or 3, wherein: the wall thickness of the tubular container is 1-2mm, and the length is 0.1-0.3 m.

5. The apparatus of claim 1, wherein the apparatus comprises: the material capable of absorbing impact energy is rubber particles.

6. The apparatus of claim 1, wherein the apparatus comprises: the diffusion module comprises an ECC plate, and a reinforcing mesh is arranged in the ECC plate.

7. The apparatus of claim 6, wherein the apparatus comprises: the thickness of the ECC plate is 6-12 cm.

8. The apparatus of claim 6, wherein the apparatus comprises: the reinforcing mesh is made of smooth round steel bars with the diameter of 6-8 mm.

9. The apparatus of claim 1, wherein the apparatus comprises: the fixing module is a steel plate with the thickness of 1-2cm, and the steel plate is connected with the bridge through bolts or welding.