CN220619754U - Bridge steel box girder anti-collision device - Google Patents

Abstract

The utility model relates to the technical field of anti-collision devices, in particular to a bridge steel box girder anti-collision device. Including steel case roof beam, set up the pier in steel case roof beam bottom, set up the anticollision subassembly at the pier top, the anticollision subassembly slides and sets up at the pier top, the anticollision subassembly is including sliding the crashproof piece that sets up at the pier top, one side of crashproof piece is fixed to be equipped with two frame plates, two it is equipped with arc crashproof board to slide between the frame plate, connect through a plurality of buffer rod between arc crashproof board and the crashproof piece, be equipped with the buffer unit who alleviates collision power between crashproof piece and the steel case roof beam. The utility model provides the bridge steel box girder anti-collision device which can increase the effect of relieving collision force so as to increase the safety of a bridge.

Description

Bridge steel box girder anti-collision device

Technical Field

The utility model relates to the technical field of anti-collision devices, in particular to a bridge steel box girder anti-collision device.

Background

Steel box girders are a common bridge construction form, and when the steel box girders are impacted, impact forces are concentrated on a specific area of the steel box girders, resulting in deformation of the area. This may take the form of deformation such as depressions, bends or twists. If the collision force exceeds the bearing capacity of the steel box girder, some parts of the steel box girder may be cracked or broken, so that the bridge cannot be normally supported. The serious collision force can cause the whole steel box girder to shift, so that the bridge is not corresponding to the supporting points or other components, and the stability of the bridge is further affected. The impact forces may cause damage to, or even cracking of, the coating, corrosion or protective layer on the steel box girder surface. This increases the risk of corrosion and ageing of the steel box girder. In order to enhance the safety performance of the bridge, an anti-collision device can be designed at the edge or the support of the bridge pier so as to reduce the impact force and damage degree of the bridge when the bridge is collided.

The common bridge steel box girder anti-collision device consists of a steel box girder, a pier and an anti-collision assembly, and the following defects are found when the device is used: the conventional anti-collision assembly is not optimal in terms of impact force alleviation, so that the impact force cannot be effectively dispersed and absorbed, and the steel box girder structure is continuously subjected to impact load. This may lead to further damage and destruction of the structure, increasing repair difficulty and expense. Meanwhile, the insufficient relieving force can cause instability of the steel box girder after collision, and further endanger the safety of the bridge.

Accordingly, in view of the above, research and improvement on the existing structure has been made, and a bridge steel box girder anti-collision device has been proposed.

Disclosure of Invention

The utility model aims to provide a bridge steel box girder anti-collision device which can increase the effect of relieving collision force so as to increase the safety of a bridge.

The technical scheme adopted by the utility model is as follows: the utility model provides a bridge steel case roof beam collision device, includes the steel case roof beam, sets up the pier in steel case roof beam bottom, sets up the crashproof subassembly at the pier top, crashproof subassembly slides and sets up at the pier top, crashproof subassembly is including sliding the crashproof piece that sets up at the pier top, the fixed two frame plates that are equipped with in one side of crashproof piece, two it is equipped with arc crashproof board to slide between the frame plate, be connected through a plurality of buffer rod between arc crashproof board and the crashproof piece, be equipped with the buffer unit who alleviates the collision power between crashproof piece and the steel case roof beam.

As a further scheme of the utility model: the buffer rod comprises a buffer cylinder fixedly arranged on one side of the anti-collision block and a movable rod fixedly arranged on one side of the arc-shaped anti-collision plate, wherein the movable rod is movably inserted into the buffer cylinder, and a first spring is sleeved on the movable rod.

As a further scheme of the utility model: one end of the first spring is fixedly connected with the buffer cylinder, and the other end of the first spring is fixedly connected with the arc-shaped anti-collision plate.

As a further scheme of the utility model: the buffer assembly is provided with a plurality of, the buffer assembly comprises sliding grooves which are formed in one side of a steel box girder and one side of an anti-collision block, two sliding blocks are arranged in the sliding grooves in a sliding mode, a second spring is fixedly arranged between the sliding blocks, a connecting clamp is fixedly arranged on one side of each sliding block, and a shear type buffer frame is rotationally arranged between the four connecting clamps.

As a further scheme of the utility model: the connecting clamps connected by the two sliding blocks in one sliding groove are different in height.

Compared with the prior art, the utility model has the beneficial effects that:

according to the utility model, through the matching arrangement of the anti-collision assembly, the buffer rod and the buffer assembly, the effect of relieving the collision force can be increased, the collision force can be effectively dispersed and absorbed, and the steel box girder structure is prevented from continuously bearing the impact load. The stable steel box girder after collision can be maintained, and the safety of the bridge is further improved.

Drawings

The accompanying drawings are included to provide a further understanding of the utility model and are incorporated in and constitute a part of this specification, illustrate the utility model and together with the embodiments of the utility model, serve to explain the utility model. In the drawings:

FIG. 1 is a schematic view of the whole structure of a bridge steel box girder anti-collision device of the utility model.

FIG. 2 is a partial cross-sectional view of a bridge steel box girder anti-collision device of the present utility model.

In the accompanying drawings:

1. a steel box girder; 2. pier 3, anti-collision assembly; 4. a buffer assembly; 5. a buffer rod; 3.1, an anti-collision block; 3.2, a frame plate; 3.3, arc anti-collision plate; 4.1, a chute; 4.2, sliding blocks; 4.3, a second spring; 4.4, connecting clips; 4.5, a shear type buffer frame; 5.1, a buffer cylinder; 5.2, a movable rod; and 5.3, spring I.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

Referring to fig. 1-2, the present utility model provides a technical solution: the utility model provides a bridge steel case roof beam collision device, including steel case roof beam 1, set up pier 2 in steel case roof beam 1 bottom, set up the anticollision subassembly 3 at pier 2 top, anticollision subassembly 3 slides and sets up at pier 2 top, anticollision subassembly 3 is including the anticollision piece 3.1 of slip setting at pier 2 top, the fixed two frame plates 3.2 that are equipped with in one side of anticollision piece 3.1, the slip is equipped with arc crashproof board 3.3 between two frame plates 3.2, through the sliding connection of frame plate 3.2 and arc crashproof board 3.3, can cushion partial collision force, the arc setting of arc crashproof board 3.3 simultaneously, when arc crashproof board 3.3 receives the collision, arc crashproof board 3.3 can take place compression set under the effect of collision force, this kind of deformation process needs to consume energy, thereby slow down the strength of collision impact, arc crashproof board 3.3 can be with the collision force dispersion to bigger area. By increasing the impact area, the cushioning force can effectively reduce the peak force of the impact.

The arc-shaped anti-collision plate 3.3 is connected with the anti-collision block 3.1 through a plurality of buffer rods 5, each buffer rod 5 comprises a buffer cylinder 5.1 fixedly arranged on one side of the anti-collision block 3.1 and a movable rod 5.2 fixedly arranged on one side of the arc-shaped anti-collision plate 3.3, each movable rod 5.2 is movably inserted into the corresponding buffer cylinder 5.1, a first spring 5.3 is sleeved on each movable rod 5.2, one end of each first spring 5.3 is fixedly connected with the corresponding buffer cylinder 5.1, and the other end of each first spring 5.3 is fixedly connected with the corresponding arc-shaped anti-collision plate 3.3. When a collision force acts on the buffer rod 5, the spring one 5.3 is elastically deformed, and the movable rod 5.2 moves in the buffer tube 5.1, thereby absorbing impact energy. The restoring force generated during such deformation may prevent the collision impact from being transmitted to other parts, thereby reducing the impact force of the collision.

The anti-collision block 3.1 is provided with a buffer component 4 for relieving collision force between the anti-collision block 3.1 and the steel box girder 1, the buffer component 4 is provided with a plurality of buffer components, the buffer component 4 comprises sliding grooves 4.1 which are all arranged on one side of the steel box girder 1 and one side of the anti-collision block 3.1, two sliding blocks 4.2 are arranged in the sliding grooves 4.1 in a sliding mode, two springs 4.3 are fixedly arranged between the two sliding blocks 4.2, one side of each sliding block 4.2 is fixedly provided with a connecting clamp 4.4, the positions of the connecting clamps 4.4 connected with the two sliding blocks 4.2 in one sliding groove 4.1 are different in height, and a shear type buffer frame 4.5 is rotationally arranged between the four connecting clamps 4.4. When the cushioning assembly 4 is impacted, the angle of the trigger scissor bumper 4.5 changes, which requires energy and lessens the impact force. The design of the scissors-type cushioning frame 4.5 generally includes energy absorbing characteristics that enable it to convert crash energy into other forms of energy. This energy absorbing mechanism helps to reduce the transmission of impact forces and lessens the impact extent of the impact.

The working principle of the utility model is as follows:

when the arc-shaped anti-collision plate 3.3 is required to collide, the arc-shaped anti-collision plate 3.3 can be moved towards the anti-collision block 3.1, so that the movable rod 5.2 can be driven to slide in the buffer barrel 5.1, meanwhile, the first spring 5.3 is deformed, so that impact energy is absorbed, then the anti-collision block 3.1 can slide at the top of the pier 2, so that the scissor-type buffer frame 4.5 rotates in the four connecting clamps 4.4, the angle of the scissor-type buffer frame 4.5 is changed, meanwhile, the two sliding blocks 4.2 also slide in the sliding groove 4.1 towards opposite directions, so that the second spring 4.3 deforms, collision energy can be converted into other forms of energy, then the transmission of impact force is reduced, the impact degree of collision is lightened, and a bridge is protected.

The utility model and its embodiments have been described above with no limitation, and the actual construction is not limited to the embodiments of the utility model as shown in the drawings. In summary, if one of ordinary skill in the art is informed by this disclosure, a structural manner and an embodiment similar to the technical solution should not be creatively devised without departing from the gist of the present utility model.

Claims (5)

1. The utility model provides a bridge steel case roof beam collision device, includes steel case roof beam (1), sets up pier (2) in steel case roof beam (1) bottom, sets up anticollision subassembly (3) at pier (2) top, its characterized in that: the anti-collision assembly (3) is arranged at the top of the bridge pier (2) in a sliding mode, the anti-collision assembly (3) comprises an anti-collision block (3.1) arranged at the top of the bridge pier (2) in a sliding mode, two frame plates (3.2) are fixedly arranged on one side of each anti-collision block (3.1), arc-shaped anti-collision plates (3.3) are arranged between the frame plates (3.2) in a sliding mode, the arc-shaped anti-collision plates (3.3) are connected with the anti-collision blocks (3.1) through a plurality of buffer rods (5), and buffer assemblies (4) for relieving collision force are arranged between the anti-collision blocks (3.1) and the steel box girders (1).

2. A bridge steel box girder anti-collision device according to claim 1, wherein: the buffer rod (5) comprises a buffer cylinder (5.1) fixedly arranged on one side of the anti-collision block (3.1) and a movable rod (5.2) fixedly arranged on one side of the arc-shaped anti-collision plate (3.3), the movable rod (5.2) is movably inserted into the buffer cylinder (5.1), and a first spring (5.3) is sleeved on the movable rod (5.2).

3. A bridge steel box girder anti-collision device according to claim 2, characterized in that: one end of the first spring (5.3) is fixedly connected with the buffer cylinder (5.1), and the other end of the first spring (5.3) is fixedly connected with the arc-shaped anti-collision plate (3.3).

4. A bridge steel box girder anti-collision device according to claim 1, wherein: the buffer assembly (4) is provided with a plurality of, the buffer assembly (4) comprises sliding grooves (4.1) which are formed in one side of a steel box girder (1) and one side of an anti-collision block (3.1), two sliding blocks (4.2) are arranged in the sliding grooves (4.1) in a sliding mode, two springs (4.3) are fixedly arranged between the sliding blocks (4.2), connecting clamps (4.4) are fixedly arranged on one side of the sliding blocks (4.2), and a shear type buffer frame (4.5) is rotationally arranged between the connecting clamps (4.4).

5. The bridge steel box girder anti-collision device according to claim 4, wherein: the connecting clamps (4.4) connected by the two sliding blocks (4.2) positioned in one sliding groove (4.1) are different in position and height.