A rotary self-resetting bridge pier anti-collision guardrail structure

Abstract

The present invention discloses a rotary self-resetting bridge pier anti-collision guardrail structure, including an anti-collision mechanism and a buffer mechanism, wherein the buffer mechanism includes an inner rubber air cushion floating block, a groove steel block and a fixed steel plate which are sleeved on the outside of the pier, wherein the fixed steel plate is an annular structure fixed to the top inner end of the inner rubber air cushion floating block, and the inner wall of the fixed steel plate is arranged on the outside of the pier and a gap is arranged between the inner wall of the fixed steel plate and the pier; the anti-collision mechanism includes an annular anti-collision steel plate and an annular slider, wherein the inner wall of the anti-collision steel plate is connected to the outer wall of the slider by a plurality of steel columns, and the slider cooperates with the slide groove on the outer wall of the fixed steel plate to slide. The present invention adopts an external anti-collision mechanism and an internal buffer mechanism, and the two mechanisms can be rotated, so that the anti-collision guardrail structure has a strong ability to absorb energy, and can push the bow away, so that most of the energy is still retained on the ship.

Description

Technical Field

[0001] The invention relates to the technical field of bridge pier anti-collision, and in particular to a rotary self-resetting bridge pier anti-collision guardrail structure. Background Art

[0002] In recent years, my country's economy has developed rapidly, and the country has vigorously developed transportation resources. With the improvement of my country's bridge construction technology, more and more bridges have been built, including large cross-sea bridges and many cross-river bridges in inland areas that provide transportation routes for urban areas on both sides of the river. In order to improve the efficiency of freight between regions and save transportation time and cost, the number of cross-river bridges will increase. However, while providing land passage, bridges must also have waterways for navigation. When ships are navigating on the water, due to the lack of signs in the waterway, ships may hit the bridge piers, which will not only cause the piers to deform and damage, but also may cause changes in the bridge structure, and even cause fractures and collapses, with very serious consequences. Moreover, most of the large cross-river bridges are very expensive now. Once a bridge collision occurs, the economic losses are huge. After actual investigation, it was found that most of the previously built bridges did not have bridge pier anti-collision facilities, and only a few of the recently built bridges had anti-ship collision facilities. Some bridges have already experienced ship collision accidents, so it is particularly important to establish stable and efficient bridge anti-ship collision facilities under this background.

[0003] However, my country's research on bridge pier anti-collision is relatively late, and most anti-collision devices are of the direct structural crushing and deformation type. When colliding, large energy is generated, which damages the anti-collision facilities and requires frequent maintenance, and also causes great damage to the ship. Therefore, a bridge pier anti-collision guardrail device is needed, which can absorb and buffer energy, and adjust the bow steering, so that most of the energy remains on the ship, reducing damage to the bridge and the ship. Summary of the invention

[0004] The purpose of the present invention is to provide a rotating self-resetting bridge pier anti-collision guardrail structure. The new anti-collision guardrail converts the direct collision between the ship and the pier into a collision between the ship and the external annular structure. The ship acts on the pier only after being buffered by the internal shock-absorbing structure and the inner rubber air cushion floating block below. The multiple transmission processes consume most of the energy. The external rotatable annular structure can make the ship self-reset, so that the hull itself takes away most of the kinetic energy, reducing the damage to the pier caused by the collision.

[0005] To achieve the above-mentioned purpose, the present invention discloses a rotary self-resetting bridge pier anti-collision guardrail structure, including an anti-collision mechanism and a buffer mechanism, wherein the buffer mechanism includes an inner rubber air cushion floating block, a groove steel block and a fixed steel plate which are sleeved on the outside of the pier, the fixed steel plate is annular in structure and fixed to the top inner end of the inner rubber air cushion floating block, the inner wall of the fixed steel plate is arranged on the outside of the pier and a gap is arranged between the inner wall of the groove steel block and the fixed steel plate; the groove steel block is annular in structure and placed on the top outer end of the inner rubber air cushion floating block, a compression spring connected to the inner wall of the groove steel block and the outer wall of the fixed steel plate is provided between the inner wall of the groove steel block and the fixed steel plate, and a slide groove arranged along the circumference of the groove steel plate is provided on the outer wall of the fixed steel plate; the anti-collision mechanism includes an anti-collision steel plate with an annular structure and an annular slider, the inner wall of the anti-collision steel plate and the outer wall of the slider are connected by a plurality of steel columns, and the slider slides in cooperation with the slide groove on the outer wall of the fixed steel plate.

[0006] An annular outer rubber air cushion floating block is arranged between the anti-collision steel plate and the sliding block, and a through hole for the steel column to pass through is arranged on the side wall of the outer rubber air cushion floating block.

[0007] The width of the outer rubber air cushion floating block is smaller than the width of the anti-collision steel plate, and a gap is provided between the outer ends of the outer rubber air cushion floating block and the inner rubber air cushion floating block.

[0008] There are eight steel columns in a circular array between the anti-collision steel plate and the slider with the axis of the slider as the center, one end of the steel column is connected to the middle of the inner wall of the anti-collision steel plate, and the other end is connected to the middle of the outer wall of the slider.

[0009] A plurality of compression springs are arranged in a circular array between the inner wall of the groove steel block and the outer wall of the fixed steel plate with the axis of the fixed steel plate as the center, and an oblique pull rope and a straight pull rope are respectively arranged above and below the compression springs for connecting the inner wall of the groove steel block and the outer wall of the fixed steel plate.

[0010] The anti-collision steel plate is a high yield strength steel plate.

[0011] Compared with the prior art, the present invention has the following beneficial effects:

[0012] The present invention adopts an external anti-collision mechanism and an internal buffer mechanism, and the two mechanisms can be rotated, so that the anti-collision guardrail structure has a strong energy absorption capacity and can push the bow away, so that most of the energy is still retained on the ship; the outer layer of the anti-collision mechanism uses a ring-shaped anti-collision steel plate, and the ring structure has good anti-collision characteristics, so that the device itself is firm and not easy to be damaged, and does not need frequent maintenance; by arranging an outer rubber air cushion float block to cooperate with the inner rubber air cushion float block, the anti-collision mechanism and the buffer mechanism can float on the water surface respectively, playing the role of bearing the total structural weight; the inner and outer rubber air cushion float blocks are not connected to each other, and there is no contact friction, which can make the anti-collision mechanism and the buffer mechanism easier to rotate, and the overall floating structure can automatically adapt to the requirements of water level changes such as tides. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 is a cross-sectional view of the present invention;

[0014] Figure 2 for Figure 1 The cross section along AA in the figure;

[0015] Figure 3 It is a schematic diagram of the resistance device mechanism in the present invention;

[0016] Figure 4 Schematic diagram of the buffer mechanism in the present invention Figure 1 ;

[0017] Figure 5 Schematic diagram of the buffer mechanism in the present invention Figure 2 .

[0018] In the figure: 1 anti-collision steel plate, 2 outer annular rubber air cushion floating block, 3 solid steel pipe, 4 wear-resistant annular sliding block, 5 wear-resistant groove steel block, 6 shock-absorbing spring device, 7 upper oblique pull rope, 8 lower straight pull rope, 9 inner rubber air cushion floating block, 10 fixed steel plate, 11 bridge pier, 12 slide chute. DETAILED DESCRIPTION

[0019] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0020] See also Figure 1-5A rotary self-resetting bridge pier anti-collision guardrail structure, comprising an anti-collision mechanism and a buffer mechanism, wherein the buffer mechanism comprises an inner rubber air cushion floating block 9, a groove steel block 5 and a fixed steel plate 10 which are sleeved on the outside of the pier 11, wherein the fixed steel plate 10 is an annular structure fixed to the top inner end of the inner rubber air cushion floating block 9, wherein the inner wall of the fixed steel plate 10 is arranged on the outside of the pier 11 and a gap is arranged between the inner rubber air cushion floating block 9 and the pier 11, wherein a gap is arranged between the fixed steel plate 10 and the pier 11, so that the force after the ship collision does not directly act on the pier 11, but is first buffered by the multiple structures in the middle to absorb most of the energy; the groove steel block 5 is annularly placed on the top outer end of the inner rubber air cushion floating block 9, wherein a compression spring 6 connected to the inner wall of the groove steel block 5 and the outer wall of the fixed steel plate 10 are arranged, and a slide groove 12 arranged along the circumference of the fixed steel plate 10 is arranged on the outer wall of the fixed steel plate 10;

[0021] The anti-collision mechanism includes an anti-collision steel plate 1 with an annular structure and an annular slider 4. The inner wall of the anti-collision steel plate 1 is connected to the outer wall of the slider 4 by a plurality of steel columns 3. The slider 4 slides in cooperation with the slide groove 12 on the outer wall of the fixed steel plate 10. In this case, the two mechanisms can rotate through the external anti-collision mechanism and the internal buffer mechanism, so that this anti-collision guardrail structure can absorb energy with strong ability and can push the bow away so that most of the energy is still retained on the ship; the outer layer of the anti-collision mechanism uses an annular anti-collision steel plate 1, and the annular structure has good anti-collision properties, so that the device itself is firm and not easy to be damaged, and does not require frequent maintenance.

[0022] An annular outer rubber air cushion float 2 is provided between the anti-collision steel plate 1 and the slider 4. A through hole for the steel column 3 to pass through is provided on the side wall of the outer rubber air cushion float 2. By arranging the outer rubber air cushion float 2 in conjunction with the inner rubber air cushion float 9, the anti-collision mechanism and the buffer mechanism can float on the water surface respectively, playing the role of bearing the total structural weight.

[0023] The width of the outer rubber air cushion float 2 is smaller than the width of the anti-collision steel plate 1. A gap is provided between the outer ends of the outer rubber air cushion float 2 and the inner rubber air cushion float 9. The inner and outer rubber air cushion floats are not connected to each other and have no contact friction, which makes it easier for the anti-collision mechanism and the buffer mechanism to rotate, and the overall floating structure can automatically adapt to the requirements of water level changes such as rising and falling tides.

[0024] There are eight steel columns 3 in a circular array between the anti-collision steel plate 1 and the slider 4 with the axis of the slider 4 as the center. One end of the steel column 3 is connected to the middle part of the inner wall of the anti-collision steel plate 1, and the other end is connected to the middle part of the outer wall of the slider 4, ensuring the connection strength between the anti-collision steel plate 1 and the slider 4, ensuring that when the ship hits the anti-collision steel plate 1, the steel column 3 can withstand sufficient impact force.

[0025] A plurality of compression springs 6 are arranged in a circular array between the inner wall of the groove steel block 5 and the outer wall of the fixed steel plate 10 with the axis of the fixed steel plate 10 as the center. An inclined rope 7 and a straight rope 8 are respectively arranged above and below the compression spring 6 for connecting the inner wall of the groove steel block 5 and the outer wall of the fixed steel plate 10 to fix the position of the groove steel block 5 and ensure that the groove steel block 5 can be automatically reset after the force position is changed after the ship hits the anti-collision steel plate 1.

[0026] The anti-collision steel plate 1 is a high yield strength steel plate, such as Q345 steel, Q390 steel or Q420 steel, so as to directly withstand the impact force of a ship collision.

[0027] The bridge pier anti-collision guardrail structure is used on water and needs to be in contact with water, so the materials of the above structure should take into account their waterproofness and corrosion resistance when selecting materials, and the buffer mechanism can be coated with waterproof material as a protective layer.

[0028] Working principle: When a ship collides with a bridge pier, the ship will first directly collide with the anti-collision steel plate 1 in the anti-collision mechanism. The collision transmission will cause the external resistance device mechanism to collide with the internal buffer mechanism, and the internal buffer mechanism has a shock-absorbing compression spring 6 to buffer the energy and exert a rebound force on the ship; the size of the grooves of the slider 4 and the grooved steel block 5 are roughly matched and cooperate with sliding, which also allows the inner and outer structures of the anti-collision guardrail to rotate relative to each other. When the ship collides with the bridge pier 11, the impact will drive the external anti-collision mechanism to rotate, thereby changing the direction of the bow and adjusting the direction of the bow, which can reduce damage to the bridge and the ship; the compression spring 6, the inclined rope 7, the straight rope 8 and the inner rubber air cushion float 9 below fix the position of the grooved steel block 5 to limit the change of the internal buffer mechanism.

[0029] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A rotary self-resetting bridge pier anti-collision guardrail structure, characterized in that: Including anti-impact mechanism and buffer mechanism, The buffer mechanism comprises an inner rubber air cushion floating block (9) sleeved on the outside of the bridge pier (11), a groove steel block (5) and a fixed steel plate (10); the fixed steel plate (10) is annular in structure and fixed to the top inner end of the inner rubber air cushion floating block (9); the inner wall of the fixed steel plate (10) is arranged outside the bridge pier (11) and a gap is provided between the inner wall of the groove steel block (5) and the outer wall of the fixed steel plate (10); a compression spring (6) connected to the groove steel block (5) is provided between the inner wall and the outer wall of the fixed steel plate (10); the outer wall of the fixed steel plate (10) is provided with a slide groove (12) arranged along the circumference thereof; the anti-collision mechanism comprises an anti-collision steel plate in annular structure (1) and an annular slider (4), the inner wall of the anti-collision steel plate (1) and the outer wall of the slider (4) are connected via a plurality of steel columns (3), and the slider (4) slides in cooperation with the slide groove (12) on the outer wall of the fixed steel plate (10); an annular outer rubber air cushion float (2) is provided between the anti-collision steel plate (1) and the slider (4), and a through hole for the steel column (3) to pass through is provided on the side wall of the outer rubber air cushion float (2); eight steel columns (3) are arranged in an annular array between the anti-collision steel plate (1) and the slider (4) with the axis of the slider (4) as the center, one end of the steel column (3) is connected to the middle part of the inner wall of the anti-collision steel plate (1), and the other end is connected to the middle part of the outer wall of the slider (4).

2. The rotary self-resetting bridge pier anti-collision guardrail structure according to claim 1 is characterized by: A plurality of compression springs (6) are arranged in a circular array between the inner wall of the groove steel block (5) and the outer wall of the fixed steel plate (10) with the axis of the fixed steel plate (10) as the center, and an inclined pull rope (7) and a straight pull rope (8) for connecting the inner wall of the groove steel block (5) and the outer wall of the fixed steel plate (10) are respectively arranged above and below the compression spring (6).

3. The rotary self-resetting bridge pier anti-collision guardrail structure according to claim 2 is characterized by: The anti-collision steel plate (1) is a high yield strength steel plate.

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