Pier anti-collision device

Abstract

This invention relates to a pier / platform anti-collision device. The device includes: a main energy-dissipating structure comprising a steel casing that surrounds the pier / platform, and isolation components arranged on the outer wall of the inner side of the steel casing; an auxiliary energy-dissipating structure comprising a flexible bladder surrounding the steel casing, energy-dissipating particles filled in the cavity inside the flexible bladder, and a diffusion block adhering to the surface of the flexible bladder facing away from the steel casing; and a locking device for fixing the steel casing to the pier / platform. The auxiliary energy-dissipating structure of the device can withstand multiple impacts from small-tonnage vessels while protecting the main energy-dissipating structure from damage. After being impacted by small-tonnage vessels, the auxiliary energy-dissipating structure can be easily maintained or replaced, thereby reducing the repair or replacement costs during the use of the pier / platform anti-collision device and extending its service life.

Description

Technical Field

[0001] This invention relates to the field of bridge protection technology, specifically to a pier anti-collision device. Background Technology

[0002] Bridge piers are substructures that support the bridge span and transfer dead loads and vehicle live loads to the foundation, located between two abutments. For bridges with vessels passing underneath, ship collisions with piers are one of the most common causes of bridge damage. Implementing anti-collision measures for piers can effectively reduce the damage caused by ship collisions to bridges. For example, this can be done by preventing the impact force from being transmitted to the piers, or by using energy-dissipating anti-collision devices to extend the time between ship collisions and reduce the impact force.

[0003] In marine environments with strong winds, currents, and waves, where the primary impact protection is provided by piers, fixed collision protection systems are generally used. Fixed collision protection systems are a common type of passive collision protection, composed of steel plates and longitudinal and transverse stiffeners. They possess high rigidity, good integrity, and stability, absorbing impact energy through their own plastic deformation and failure. However, after being struck by a ship, these fixed collision protection systems require repair or replacement, which is costly. Summary of the Invention

[0004] In view of the above problems, the present invention is proposed to provide a pier anti-collision device that overcomes or at least partially solves the above problems.

[0005] The anti-collision device for the pier includes:

[0006] The main energy dissipation structure includes a steel casing that can be enclosed around the pier, and an isolation component arranged on the outer wall of the inner side of the steel casing. The isolation component is used to prevent the outer wall of the inner side of the steel casing from colliding and being damaged by the pier's perimeter.

[0007] An auxiliary energy dissipation structure includes a flexible bladder surrounding a steel casing, energy dissipation particles filling the cavity inside the flexible bladder, and a diffusion block attached to the surface of the flexible bladder facing away from the steel casing. The diffusion block is used to diffuse the impact force it receives to the surface of the flexible bladder.

[0008] A locking device is used to fix the steel casing to the pier.

[0009] In one embodiment, the steel casing has a double-wall structure, with a horizontal partition and a vertical partition arranged between the two walls and fixedly connected to both walls.

[0010] In an embodiment, the steel jacket is formed by several segments which are horizontally spliced together, and each two adjacent segments are connected by bolts; a water-tight cabin is arranged at the bolt connection position in the inner cavity of each segment, and a sealing member is further arranged between the two adjacent segments, and the water-tight cabin and the sealing member are used to prevent liquid from contacting the bolts; a communication hole is formed in each segment, and liquid can enter the inner cavity of each segment through the communication hole except the water-tight cabin; and the surface of each segment which contacts the liquid is covered by an anti-corrosion coating.

[0011] In an embodiment, the isolation assembly comprises several horizontal rubber strips which are sequentially arranged in the vertical direction and are attached to the outer wall surface of the inner side of the steel jacket, and a non-bonding isolation material is filled between the adjacent horizontal rubber strips.

[0012] In an embodiment, the flexible capsule is formed by several sub-capsules, the steel jacket forms a positioning groove which cooperates with each sub-capsule, and each sub-capsule is connected to the steel jacket by a chain; the surface of each sub-capsule which faces away from the steel jacket is tightly attached to a corresponding diffusion block, and each diffusion block is connected to the steel jacket by a fastening belt and is tightly attached to the surface of the sub-capsule.

[0013] In an embodiment, each sub-capsule is provided with two horizontally and oppositely arranged filling hole flanges, and energy-consuming particles can be filled into the internal cavity of the sub-capsule through the filling hole which is covered by the filling hole flange; the filling hole flange is connected to the chain; and a strut is further arranged in the internal cavity of the sub-capsule, and the two ends of the strut are respectively abutted against the two filling hole flanges, or one end of the strut is fixedly connected to one of the filling hole flanges and the other end is abutted against the other filling hole flange.

[0014] In an embodiment, the cross section of each sub-capsule is in the shape of a circular ring.

[0015] In an embodiment, the energy-consuming particles are ceramic particles, and the horizontal projection of the diffusion block on the sub-capsule gradually expands from the end which is away from the sub-capsule to the end which is tightly attached to the sub-capsule.

[0016] In an embodiment, the diffusion block comprises a metal shell and a polyurethane foam filler which is filled in the inner cavity of the metal shell.

[0017] In an embodiment, the locking device comprises a first support which can be fixedly connected to the top of the pier, a second support which is fixedly connected to the hanging leg of the steel jacket, and a pull rod which is rotatably connected to the first support and the second support at the two ends; a rubber pad is fixed to the lower end of the hanging leg, and the rubber pad can abut against the top surface of the pier.

[0018] The pier anti-collision device utilizes the auxiliary energy dissipation structure to cope with small-tonnage ship collision, and the auxiliary energy dissipation structure can withstand multiple small-tonnage ship collisions and protect the main energy dissipation structure from being damaged. The auxiliary energy dissipation structure can be conveniently maintained or replaced after being subjected to small-tonnage ship collision, thereby reducing the repair or replacement cost of the pier anti-collision device during use and prolonging the service life of the pier anti-collision device. BRIEF DESCRIPTION OF DRAWINGS

[0019] The accompanying drawings, which are included to provide a further understanding of the embodiments of the application and are incorporated in and constitute a part of this specification, illustrate embodiments of the application and together with the description serve to explain the principles of the application. It is readily apparent to one skilled in the art that the following figures are only some embodiments of the application, and other figures can be obtained from these figures without creative labor. In the drawings:

[0020] Figure 1 It is an embodiment of the planar arrangement of the pier anti-collision device of the application;

[0021] Figure 2 It is Figure 1 The structural schematic diagram of the pier anti-collision device shown;

[0022] Figure 3 It is the structural schematic diagram of another embodiment of the pier anti-collision device of the application;

[0023] Figure 4 It is Figure 1 The sectional structural schematic diagram of the steel sleeve box shown;

[0024] Figure 5 It is Figure 1 The structural schematic diagram of the auxiliary energy dissipation structure shown;

[0025] Figure 6 It is Figure 1 The local sectional structural schematic diagram of the ascus shown;

[0026] Figure 7 It is Figure 1 The structural schematic diagram of one of the ascuses shown;

[0027] Figure 8 It is Figure 1 The structural schematic diagram of another ascus shown;

[0028] Figure 9 It is the installation schematic diagram of the locking device;

[0029] Figure 10 It is the installation schematic diagram of the locking device from another perspective;

[0030] Figure 11Installation diagram for rubber pad

[0031] Figure 12 Plan view of pad plate.

[0032] Legend: 1, main energy dissipation structure; 2, auxiliary energy dissipation structure; 3, locking device; 4, steel sleeve box; 5, flexible capsule; 6, energy dissipation particles; 7, diffusion block; 8, sub-capsule; 9, positioning groove; 10, anchor chain; 11, filling hole flange; 12, ear plate; 13, brace; 14, fastening belt; 15, metal shell; 16, polyurethane foam filler; 17, first support; 18, hanging leg; 19, second support; 20, pull rod; 21, rubber pad; 22, stainless steel pad plate; 101, pier; 102, pad stone; 103, pre-embedded steel plate. DETAILED DESCRIPTION

[0033] The embodiments of the present application are described in detail below, examples of which are shown in the accompanying drawings. The embodiments described below by referring to the drawings are exemplary, and are intended to explain the present application, and cannot be understood as a limitation of the present application, and a person of ordinary skill in the art can make various changes, modifications, replacements and variations to the embodiments without departing from the principles and the spirit of the present application, and the scope of the present application is defined by the claims and their equivalents.

[0034] In the description of the present application, the terms "center", "longitudinal", "transverse", "length", "upper", "lower", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "axial", "radial", "circumferential" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the indicated device or element must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation of the present application.

[0035] In addition, the terms "first", "second" are only for the purpose of description, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined with "first", "second" can explicitly or implicitly include one or more of the features. In addition, the terms "include", "contain" and any variations thereof are intended to cover non-exclusive inclusion.

[0036] In the description of the present application, it should be noted that unless otherwise explicitly specified and limited, the terms "mounting", "connection" should be understood broadly, for example, it can be fixed connection, or detachable connection, or integrally connected; it can be mechanical connection, or electrical connection; it can be directly connected, or indirectly connected through intermediate medium, or internal communication of two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0037] A pier anti-collision device according to an embodiment of the present application is described below with reference to the accompanying drawings.

[0038] Referring to Figure 1 and Figure 2 , a pier anti-collision device according to an embodiment of the present application includes a main energy dissipation structure 1, an auxiliary energy dissipation structure 2, and a locking device 3. The main energy dissipation structure 1 can be enclosed around the pier 101 and can absorb impact energy through its own plastic deformation and destruction to cope with large-tonnage ship impact. The main energy dissipation structure 1 is fixed to the pier 101 by the locking device 3. The auxiliary energy dissipation structure 2 is enclosed around the main energy dissipation structure 1 and is used to cope with small-tonnage ship impact. It can withstand multiple small-tonnage ship impacts and protect the main energy dissipation structure 1 from being damaged. The auxiliary energy dissipation structure 2 can be easily maintained or replaced after being subjected to small-tonnage ship impact, thereby reducing the repair or replacement cost during the use of the pier anti-collision device and prolonging the service life of the pier anti-collision device.

[0039] Specifically, the main energy dissipation structure 1 includes a steel sleeve box 4 that can be enclosed around the pier 101, and an isolation assembly arranged on the outer wall surface inside the steel sleeve box 4, which is used to prevent the outer wall surface inside the steel sleeve box 4 from being damaged by colliding with the peripheral wall of the pier 101. The steel sleeve box 4 can absorb impact energy through its own plastic deformation and destruction to cope with large-tonnage ship impact. In addition to having an anti-collision function, the steel sleeve box 4 can also serve as a construction cofferdam, for example, Figure 2 The steel sleeve box 4 shown in Figure 3 can completely surround the peripheral wall of the pier 101 and, in addition to having an anti-collision function, can also serve as a construction cofferdam.

[0040] In one embodiment, as shown in Figure 4 , the steel sleeve box 4 can have a double-wall structure, with horizontal and vertical partition plates arranged between the two walls and fixedly connected to both walls. The walls of the steel sleeve box 4 are also provided with longitudinal and transverse stiffening ribs to improve the strength of the steel sleeve box 4.

[0041] The steel box 4 can be designed in segments, i.e. several segments are horizontally spliced together, and each two adjacent segments are connected by bolts. After the steel box 4 is subjected to a large-tonnage ship impact, only the damaged or deformed segments need to be repaired or replaced, thereby saving repair costs.

[0042] A water tank is arranged at the bolt connection of the segment inner cavity, and a sealing member, such as a rubber sealing member, is arranged between the two adjacent segments. The water tank and the sealing member are used to prevent liquid, such as river water or seawater, from contacting the bolt, thereby reducing the corrosion rate of the bolt. The segment can be provided with a communication hole, through which liquid can enter the other areas of the segment inner cavity except the water tank, and the top plate of the segment can be provided with a manhole. The surface of each segment that contacts the liquid is covered with an anti-corrosion coating. Preferably, the steel box 4 is also provided with a sacrificial anode.

[0043] The isolation assembly can include a plurality of horizontal rubber strips arranged in sequence in the vertical direction and attached to the inner side of the outer wall of the steel box 4, and a non-bonding isolation material filled between adjacent horizontal rubber strips. The isolation material can be a polyurethane foam board or other suitable material.

[0044] Referring to Figure 1 , Figure 2 , Figure 5 and Figure 6 , the auxiliary energy dissipation structure 2 includes a flexible bag body 5 surrounding the steel box 4, energy dissipation particles 6 filled in the internal cavity of the flexible bag body 5, and a diffusion block 7 closely attached to the surface of the flexible bag body 5 facing away from the steel box 4. The diffusion block 7 is used to diffuse the impact force acting on it to the surface of the flexible bag body 5. When a small-tonnage ship collides, the impact energy is absorbed by the energy dissipation particles 6 in the internal cavity of the flexible bag body 5 through extrusion, friction and crushing. The material of the flexible bag body 5 can be a multi-layer canvas and rubber vulcanization, and the flexible bag body 5 can withstand multiple impacts without damaging the cavity. After being subjected to a small-tonnage ship impact, the energy dissipation particles 6 in the flexible bag body 5 can be appropriately replaced to maintain the protection performance of the auxiliary energy dissipation structure 2. In addition, the auxiliary energy dissipation structure 2 has good protection effect on the ship, and to some extent, it also reduces the damage to the ship caused by the impact.

[0045] The number of flexible bag bodies 5 can be determined according to actual conditions, such as Figure 2 the number of flexible bag bodies 5 in the pier impact protection device shown in Figure 3 is 4, and each flexible bag body 5 surrounds the steel box 4 in the horizontal direction from top to bottom. The number of flexible bag bodies 5 in this embodiment is not limited.

[0046] The flexible capsule 5 can adopt an integrated structure, i.e. being enclosed around the steel sleeve 4 by a complete capsule, or a segmented structure, i.e. being enclosed around the steel sleeve 4 by several sub-capsules 8. In the embodiment, the flexible capsule 5 adopts the segmented structure for convenient installation and subsequent replacement of the energy-consuming particles 6.

[0047] The steel sleeve 4 can form positioning grooves 9 matched with the sub-capsules 8, and each sub-capsule 8 is connected with the steel sleeve 4 by an anchor chain 10. Specifically, the sub-capsule 8 is provided with two horizontally opposite filling hole flanges 11, one end of the anchor chain 10 is connected with an ear plate 12 of the steel sleeve 4, and the other end is connected with the filling hole flange 11 to tighten the sub-capsule 8. The number of the anchor chain 10 can be determined according to actual conditions, which is not limited herein. Of course, the sub-capsule 8 can also be fixed to the steel sleeve 4 by other suitable ways. The energy-consuming particles 6 can be filled into the internal cavity of the sub-capsule 8 through the filling hole covered by the filling hole flange 11, and the energy-consuming particles 6 can be ceramsite.

[0048] Preferably, as shown in Figure 7 、 Figure 8 , the internal cavity of the sub-capsule 8 is also arranged with a support rod 13, two ends of the support rod 13 are respectively abutted against the two filling hole flanges 11, or one end of the support rod 13 is fixedly connected with one of the filling hole flanges 11, and the other end is abutted against the other filling hole flange 11, etc. The rigidity of the sub-capsule 8 can be improved by using the support rod 13, so as to reduce or avoid large deformation of the sub-capsule 8 due to the gravity of the energy-consuming particles 6 filled in the internal cavity, or reduce or avoid large deformation of the sub-capsule 8 due to excessive buoyancy.

[0049] Now returning to Figure 1 、 Figure 2 and Figure 5 , in the embodiment, the surface of each sub-capsule 8 away from the steel sleeve 4 is tightly attached with a corresponding diffusion block 7, i.e. the diffusion block 7 correspondingly adopts a segmented structure. Each diffusion block 7 is connected with the steel sleeve 4 by a fastening belt 14 and tightly attached to the surface of the sub-capsule 8. The fastening belt 14 can be a rubber fastening belt 14. It should be understood that the diffusion block 7 can also adopt an integrated structure, for example, when the flexible capsule 5 adopts an integrated structure, the diffusion block 7 correspondingly adopts an integrated structure. The diffusion block 7 can also be fixed by other ways, such as being pasted to the surface of the sub-capsule 8.

[0050] In the embodiment, the cross section of the sub-capsule 8 is circular ring shape, and correspondingly, the cross section of the positioning groove 9 is circular arc shape, the contact area of the sub-capsule 8 with the steel sleeve 4 is large, which is conducive to the dispersion of the impact force.

[0051] Preferably, the horizontal projection of the diffusion block 7 on the sub-capsule 8 gradually expands from the end away from the sub-capsule 8 to the end tightly attached to the sub-capsule 8. CorrespondinglyFigure 5 The perspective is that the diffusion block 7 gradually expands from left to right and the upper and lower two side edges, and the surface in contact with the ascocarp 8 is arc-shaped, so as to facilitate the diffusion of impact force to the surface of the flexible bag 5.

[0052] Specifically, the diffusion block 7 comprises a metal shell 15 and a polyurethane foam filler 16 filled in the cavity of the metal shell 15. One end of the fastening belt 14 can be connected with the metal shell 15 by connecting bolts, and the other end of the fastening belt 14 can be connected with the lug plate 12 of the steel sleeve box 4 by connecting bolts. The number of the fastening belt 14 can be determined according to the actual situation, which is not limited in the embodiment.

[0053] Now referring to Figure 1 , Figure 9 , Figure 10 , the number of the locking device 3 can be determined according to the actual situation, such as the weight of the main energy consumption structure 1 and the auxiliary energy consumption structure 2, the circumference of the pier 101, etc. The locking device 3 comprises a first support 17 capable of being fixedly connected with the top of the pier 101, a second support 19 fixedly connected with the hanging leg 18 of the steel sleeve box 4, and a pull rod 20 rotatably connected with the first support 17 and the second support 19 at both ends. Specifically, the pier 101 can be provided with a cushion stone 102 and a pre-buried steel plate 103, the first support 17 is fixedly connected with the pre-buried steel plate 103 by connecting bolts, and similarly, the second support 19 is also connected with the hanging leg 18 by connecting bolts.

[0054] The lower end of the hanging leg 18 is fixedly provided with a rubber pad 21, which can abut against the top surface of the pier 101. As shown in Figure 11 and Figure 12 , a stainless steel pad 22 in the shape of a generally rectangular ring is arranged in the rubber pad 21, and the rubber pad 21 is connected with the hanging leg 18 by connecting bolts.

[0055] The pier anti-collision device of the embodiment utilizes the auxiliary energy consumption structure to cope with the impact of small-tonnage ships, and the auxiliary energy consumption structure can withstand multiple impacts of small-tonnage ships and protect the main energy consumption structure from being damaged. The auxiliary energy consumption structure can be easily maintained or replaced after being impacted by small-tonnage ships, thereby reducing the repair or replacement cost of the pier anti-collision device during use and prolonging the service life of the pier anti-collision device.

Claims

1. A pier anti-collision device, characterized by, The application relates to a main energy consumption structure, an auxiliary energy consumption structure, a locking device, and a flexible capsule. The main energy consumption structure comprises a steel sleeve box capable of being enclosed around a pier, an isolation assembly arranged on the outer wall surface inside the steel sleeve box, and the isolation assembly is used for preventing the outer wall surface inside the steel sleeve box from being damaged by colliding with the circumferential wall of the pier. The auxiliary energy consumption structure comprises a flexible capsule enclosed around the steel sleeve box, energy consumption particles filled in the internal cavity of the flexible capsule, and a diffusion block tightly attached to the surface of the flexible capsule which is opposite to the steel sleeve box. The locking device is used for fixing the steel sleeve box to the pier. The flexible capsule is composed of a plurality of sub-capsules, the steel sleeve box forms positioning grooves matched with the sub-capsules, and the sub-capsules are connected to the steel sleeve box through anchor chains. The surface of each sub-capsule which is opposite to the steel sleeve box is tightly attached to a corresponding diffusion block, the diffusion block is connected to the steel sleeve box through a fastening belt and tightly attached to the surface of the sub-capsule, the horizontal projection of the diffusion block on the sub-capsule gradually expands from one end away from the sub-capsule to one end tightly attached to the sub-capsule, the diffusion block comprises a metal shell and polyurethane foam filler filled in the internal cavity of the metal shell. The locking device comprises a first support capable of being fixedly connected with the top of the pier, a second support fixedly connected with the hanging leg of the steel sleeve box, and a pull rod rotatably connected with the first support and the second support at two ends.

2. The pier bollard of claim 1, wherein: The second support is higher than the first support.

3. The pier bollard of claim 2, wherein: The lower end of the hanging leg is fixedly connected with a rubber pad which can abut against the top surface of the pier.

4. The pier bollard of claim 1, wherein: The rubber pad is provided with a generally rectangular annular stainless steel pad plate, and the rubber pad is connected with the hanging leg through connecting bolts.

5. The pier crash attenuator of claim 1, wherein: The steel sleeve box is a double-wall structure, and horizontal and vertical partition plates are arranged between the two walls and fixedly connected with the two walls.

6. The pier crash attenuator of claim 5, wherein: The steel sleeve box is composed of a plurality of segmented horizontal joints, and two adjacent segments are connected through bolts.

7. The pier bollard of claim 6, wherein: The internal cavity of each segment is provided with a water-tight cabin at the bolt connection position, and a sealing element is further arranged between the two adjacent segments. The segments are provided with communication holes, and liquid can enter the internal cavity of the segments through the communication holes. The surfaces of the segments which are in contact with the liquid are covered with an anticorrosive coating. The isolation assembly comprises a plurality of horizontal rubber strips arranged in the vertical direction and attached to the outer wall surface inside the steel sleeve box, and non-bonding spacers filled between the adjacent horizontal rubber strips. The sub-capsule is provided with two horizontally and oppositely arranged filling hole flanges, and the energy consumption particles can be filled in the internal cavity of the sub-capsule through the filling holes covered by the filling hole flanges. The internal cavity of the sub-capsule is further provided with a supporting rod, and the two ends of the supporting rod abut against the two filling hole flanges, or one end of the supporting rod is fixedly connected with one filling hole flange and the other end abuts against the other filling hole flange. The cross section of the sub-capsule is circular annular. The energy consumption particles are ceramsite.

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