CN109577171B

CN109577171B - Floating bridge buffer stop

Info

Publication number: CN109577171B
Application number: CN201811342926.3A
Authority: CN
Inventors: 陈嘉奇; 马东华; 邓加龄; 邱晶; 赵建新
Original assignee: Wuhan University Of Technology Advanced Engineering Technology Research Institute Of Zhongshan City; Zhongan Raybo Construction Group Co ltd
Current assignee: Wuhan University Of Technology Advanced Engineering Technology Research Institute Of Zhongshan City; Zhongan Raybo Construction Group Co ltd
Priority date: 2018-11-13
Filing date: 2018-11-13
Publication date: 2020-10-30
Anticipated expiration: 2038-11-13
Also published as: CN109577171A

Abstract

The invention relates to a floating bridge anti-collision device. It includes the inlayer bounding wall, outer bounding wall and support link, and this outer bounding wall overlaps outside the inlayer bounding wall and surrounds the inlayer bounding wall, the lateral surface of inlayer bounding wall faces each other with the medial surface of outer bounding wall, it connects between the lateral surface of inlayer bounding wall and the medial surface of outer bounding wall to support the link, this support link includes the curved board of arc, the lateral surface of inlayer bounding wall is connected to the one end of this curved board of arc, and the other end of this curved board of arc is connected in the medial surface of outer bounding wall, this curved board of arc is from the one end of being connected with the lateral surface of inlayer bounding wall to the one end bending arc of being connected with the medial surface of outer bounding. The invention can obviously improve the range of tensile deformation and compression deformation by adopting the arc-shaped bent plate, reduce the risk of deformation and fracture, enhance the load capacity and the impact resistance, play a role in buffering and improve the anti-collision protection effect. Moreover, the arc-shaped bending plate has the recovery capability and can be reused.

Description

Floating bridge buffer stop

Technical Field

The invention relates to the technical field of bridge safety protection, in particular to a bridge anti-collision device suitable for river channels, water channels and the technical field of offshore bridge safety.

Background

With the development of transportation industry, large bridges spanning navigation rivers, harbor areas and straits are more and more large, and an ultra-long sea-spanning or island-connected bridge appears, so that the original navigation channel becomes smaller and narrower. Meanwhile, the number, tonnage and speed of ships are increasing, and the major sea damage accidents of bridge collapse and damage caused by ship collision with bridges are increasing and increasing, and in global newspapers or televisions, the events that ships collide with piers often occur and are reported. Some small collisions can be repaired, and once a large collision occurs, the consequences of the large collision are not imagined, and in order to ensure that the ship is safe and the bridge is not damaged, people adopt a plurality of methods and facilities to protect the bridge building.

Therefore, various protective measures are actively researched by domestic and foreign units, and the currently adopted protective structure comprises the following aspects:

1. fender formula protective structure

In the type, an elastic buffer structure C is formed by using buffer materials on the periphery of a pier, and cylindrical, arched or groove-shaped fender materials are arranged on the periphery of the pier to perform safety protection. After the ship impacts the buffering material, impact energy is absorbed and the direction of the bow of the ship is changed, so that the bridge is prevented from being seriously impacted.

2. Rope type protective structure

The protective structure is characterized in that supports which are about 2 meters away from the side surface of the bridge pier are arranged on the bridge pier, adjacent supports are connected through a steel wire mesh G, and the deformation of a steel wire rope is utilized to absorb impact energy.

Currently, common anti-collision facilities can be divided into two categories:

one is indirect, which is characterized in that: and anti-collision facilities such as pile groups, gravity pendulums, cofferdams, artificial islands, anchoring system floating bodies and the like are additionally arranged outside the piers. Although the indirect anti-collision facility can not make the pier directly bear the collision force, the facility is difficult to implement in the occasions with poor water depth and geological conditions, and the civil engineering quantity is large.

The second is a direct formula, and is characterized in that: the pier is directly provided with buffer facilities such as a protective string, a rope, a fixed or floating casing box and the like. Although the direct anti-collision facility can be used in the occasions with narrow navigation channels and deep water, the construction cost is low, the civil engineering quantity is not large, and the impact force is still directly acted on the bridge piers after being buffered, thereby causing the future troubles.

The four structures all use piers as bearing action points, are static and are fixed on the piers, so that the four structures cannot be changed according to the change of the river water level. In rainy season, when the water level of the river rises, the river is submerged, and in arid season, the river is exposed excessively. Meanwhile, if the raw material of the device structure is a high polymer material, the device structure is easy to age in an open environment, and if steel is used as the raw material, the device structure is easy to corrode.

Disclosure of Invention

The invention aims to provide a floating bridge anti-collision device which comprises an inner-layer coaming, an outer-layer coaming and a support connecting frame, wherein the inner-layer coaming and the outer-layer coaming are annular, the outer-layer coaming is sleeved outside the inner-layer coaming to surround the inner-layer coaming, the outer side surface of the inner-layer coaming is opposite to the inner side surface of the outer-layer coaming, the support connecting frame is connected between the outer side surface of the inner-layer coaming and the inner side surface of the outer-layer coaming, the support connecting frame comprises an arc-shaped bending plate, one end of the arc-shaped bending plate is connected to the outer side surface of the inner-layer coaming, the other end of the arc-shaped bending plate is connected to the inner side surface of the outer-layer coaming.

The invention can obviously improve the range of tensile deformation and compression deformation by adopting the arc-shaped bent plate, reduce the risk of deformation and fracture, enhance the load capacity and the impact resistance, play a role in buffering and improve the anti-collision protection effect. Moreover, the arc-shaped bending plate has the recovery capability and can be reused.

Drawings

Figures 1 and 2 show a perspective view of the invention from two different angles, respectively;

FIGS. 3 and 4 show two different angled exploded views of the present invention, respectively;

FIG. 5 shows a schematic orthographic view of the present invention;

FIG. 6 shows a cross-sectional view A-A of FIG. 5;

FIG. 7 shows a cross-sectional view B-B of FIG. 5;

FIG. 8 shows a schematic view of the outer shroud in FIG. 6 after impact on the lower side of the figure;

fig. 9 is a schematic view of fig. 7 with a pier added;

figure 10 shows a perspective view of an arcuate curved panel.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.

As shown in fig. 1 to 10, a floating bridge collision avoidance device includes an inner surrounding plate 10, an outer surrounding plate 20 and a support connecting frame, where the inner surrounding plate 10 and the outer surrounding plate 20 are both annular, and the outer surrounding plate 20 is sleeved outside the inner surrounding plate 10 to surround the inner surrounding plate 10, an outer side 101 of the inner surrounding plate faces an inner side 202 of the outer surrounding plate, the support connecting frame is connected between an outer side 101 of the inner surrounding plate and the inner side 202 of the outer surrounding plate, the support connecting frame includes an arc-shaped bending plate 30, one end 301 of the arc-shaped bending plate is connected to the outer side 101 of the inner surrounding plate, and the other end 302 of the arc-shaped bending plate is connected to the inner side 202 of the outer surrounding plate, and the arc-shaped bending plate 30 is bent from one end 301 connected to the outer side of the inner surrounding plate to one end 302 connected to the inner side of.

According to the technical scheme, the range of tensile deformation and compression deformation can be remarkably improved by adopting the arc-shaped bent plate, the deformation and fracture risks are reduced, the load capacity and the impact resistance are enhanced, the buffering effect is achieved, and the anti-collision protection effect is improved. Moreover, the arc-shaped bending plate has the recovery capability and can be reused.

This inlayer bounding wall 10 and outer bounding wall 20 all are square ring shape, and wherein the lateral surface 101 of this inlayer bounding wall surrounds by four outside square faces and forms, and the medial surface 202 of this outer bounding wall surrounds by four inboard square faces and forms, and each outside square face parallels with an inboard square face respectively, all is equipped with arc bending plate 30 between the outside square face that every group paralleled and the inboard square face.

Connected to the curved plate 30 between the parallel outer and inner rectangular faces of each set, one end 301 of the curved plate is connected to the outer rectangular face and the other end 302 of the curved plate is connected to the inner rectangular face.

This technical scheme can improve the anticollision protection effect, and when outer bounding wall received the striking, the crooked board of arc between the square face in the outside that four groups paralleled and the square face in the inboard takes place deformation (tensile or compression deformation) and plays the cushioning effect. For example, as shown in fig. 8, when one of the four sides of the outer shroud (the lower side in fig. 8) is impacted, the curved bent plate between the outer square surface and the inner square surface corresponding to the impacted side is compressed, and the curved bent plate between the outer square surface and the inner square surface corresponding to the side opposite to the impacted side (the upper side in fig. 8) is stretched.

The length direction of each of the arc-shaped bent plates 30 is parallel to the height direction of the inside shroud 10. The projection of each arc-shaped bent plate on a plane perpendicular to the length direction of the bent plate is arc-shaped.

In this embodiment, the direction of height of the inner coaming is the same as the direction of height of the outer coaming, and even, the height of the inner coaming, the length of each arc-shaped bent plate and the height of the outer coaming are all equal. This technical scheme can further improve the anticollision protection effect.

The number of the arc-shaped bent plates arranged between the outer side square surface and the inner side square surface which are parallel to each other in each group is a plurality of. This technical scheme can further improve the anticollision protection effect.

In the polylith arc crooked board that is equipped with between the square face in the outside that every group paralleled and the square face in the inboard, these arc crooked boards are divided into two sets of symmetry. This technical scheme can further improve the anticollision protection effect.

Each group of arc-shaped bent plates comprises a plurality of arc-shaped bent plates which are arranged at intervals along the width direction of the inner side square surface. This technical scheme can further improve the anticollision protection effect.

The inner side 102 of the inner coaming is provided with a cushion pad 40, the cushion pad 40 is annular, and the inner coaming 10 is sleeved outside the cushion pad 40 to surround the cushion pad 40. The inner side 102 of the inner panel is opposite the outer side 101 of the inner panel. The outer side 201 of the outer shroud faces away from the inner side 202 of the outer shroud. This technical scheme can play the cushioning effect through setting up the buffer backing plate, further improves the anticollision protection effect.

A bottom plate 50 is connected between the lower end of the inner shroud 10 and the lower end of the outer shroud 20, and an opening 103 is formed between the upper end of the inner shroud 10 and the upper end of the outer shroud 20;

the inner enclosure 10, the outer enclosure 20 and the bottom plate 50 enclose a box body 60 floating on the water surface, and the box body 60 is provided with a cavity 104 communicated with the opening 103;

the support connectors are located in the pockets 104, that is, the support connectors are inserted between the inner skin 10 and the outer skin 20.

The inner-layer coaming 10, the outer-layer coaming 20 and the bottom plate 50 are all made of high-performance fiber reinforced toughened cement-based materials (namely HPFRCC materials), and the materials can deform and do not crack when impacted and can be used continuously after being reinforced;

the arc-shaped bent plate 30 is made of an ultra-high performance cement-based material (namely, a UHTCC (ultra high temperature coefficient of material)), has high strength and high toughness, can effectively slow down impact, and is convenient to replace after damage;

the cushion pad 40 is made of one or more of high-elasticity rubber, high-elasticity EVA foam material and high-resilience polyether polyol material.

The floating bridge collision preventing device is installed around the pier 70, and the cushion pad 40 is fitted around the pier 70 to surround the pier 70.

The whole floating bridge anti-collision device floats on the water surface, can change according to the change of the water level, has simple structure and easy forming, and can effectively overcome the corrosion in the marine environment by preferably selecting cement-based materials as the forming materials of the device.

Claims

1. A floating bridge anti-collision device comprises an inner-layer coaming, an outer-layer coaming and a supporting connecting frame, wherein the inner-layer coaming and the outer-layer coaming are annular, the outer-layer coaming is sleeved outside the inner-layer coaming to surround the inner-layer coaming, the outer side surface of the inner-layer coaming is opposite to the inner side surface of the outer-layer coaming, the supporting connecting frame is connected between the outer side surface of the inner-layer coaming and the inner side surface of the outer-layer coaming, the supporting connecting frame comprises an arc-shaped bending plate, one end of the arc-shaped bending plate is connected to the outer side surface of the inner-layer coaming, the other end of the arc-shaped bending plate is connected to the inner side surface of the outer-layer coaming;

the method is characterized in that:

the inner-layer coaming and the outer-layer coaming are both in a square ring shape, wherein the outer side surface of the inner-layer coaming is formed by encircling four outer square surfaces, the inner side surface of the outer-layer coaming is formed by encircling four inner square surfaces, each outer square surface is respectively parallel to one inner square surface, and an arc-shaped bent plate is arranged between each group of parallel outer square surfaces and each inner square surface;

the length direction of each arc-shaped bent plate is parallel to the height direction of the inner layer coaming;

the height of the inner layer coaming, the length of each arc-shaped bent plate and the height of the outer layer coaming are equal;

the number of the arc-shaped bent plates arranged between the outer side square surface and the inner side square surface which are parallel to each other in each group is a plurality of arc-shaped bent plates;

in a plurality of arc-shaped bent plates arranged between the outer side square surface and the inner side square surface which are parallel to each other, the arc-shaped bent plates are divided into two symmetrical groups;

a bottom plate is connected between the lower end of the inner-layer coaming and the lower end of the outer-layer coaming, and an opening is formed between the upper end of the inner-layer coaming and the upper end of the outer-layer coaming;

the inner-layer coaming, the outer-layer coaming and the bottom plate are encircled to form a box body which floats on the water surface, and the box body is provided with a containing cavity communicated with the opening;

the support link is located in the cavity.

2. The floating bridge collision avoidance device of claim 1, wherein: each group of arc-shaped bent plates comprises a plurality of arc-shaped bent plates which are arranged at intervals along the width direction of the inner side square surface.

3. The floating bridge collision avoidance device of claim 1, wherein: the inner side face of the inner-layer coaming is provided with a buffer backing plate, the buffer backing plate is annular, and the inner-layer coaming is sleeved outside the buffer backing plate to surround the buffer backing plate.

4. The floating bridge collision avoidance device of claim 3, wherein:

the inner-layer coaming, the outer-layer coaming and the bottom plate are all made of high-performance fiber reinforced toughened cement-based materials;

the arc-shaped bent plate is made of an ultrahigh-performance cement-based material;

the cushion pad is made of one or more of high-elasticity rubber, high-elasticity EVA foam material and high-resilience polyether polyol material.

5. The floating bridge collision avoidance device of claim 3, wherein: the floating bridge anti-collision device is arranged on the periphery of a bridge pier, and the buffer base plate is sleeved outside the bridge pier to surround the bridge pier.