Construction Method of Graded Energy Dissipation Anti-Ship-Collision Buffer Device with Quantifiable Anti-Collision Ability

Abstract

The invention discloses a construction method of a hierarchical energy-dissipating anti-ship-collision buffer device with quantifiable anti-collision ability, and its construction steps include: (1) fabricating a sealed steel shell with internal filling materials according to required dimensions; (2) connecting the steel shells with sealing plates to form an energy-dissipating anti-collision box with an open upper part; (3) fabricating an energy-dissipating element barrel which is sealed and filled with fine sand or foam-like flexible materials inside by using thin steel plates; (4) arranging the energy-dissipating element barrels in layers in the energy-dissipating anti-collision box with an open upper part, and filling the gaps with foamed body filling materials; (5) covering the energy-dissipating anti-collision box with a sealing steel plate and performing anti-corrosion coating to obtain an energy-dissipating anti-collision box module; (6) transporting and hoisting the energy-dissipating anti-collision box module to the site, connecting each module with connectors to form a complete anti-collision buffer device, and arranging it around the pier or bearing platform in a surrounding manner, then it can be put into use. The buffer device obtained by construction has the characteristics of modular assembly, puncture resistance, hierarchical energy dissipation and quantifiable anti-collision ability.

Description

Technical Field

[0001] The present invention mainly relates to the technical field of bridge anti-ship collision, and particularly refers to a construction method of a new type of anti-ship collision buffer device with graded energy dissipation that can quantify the anti-collision ability. Background Art

[0002] With the continuous development of the transportation industry, the number of bridges built in broad waters and deep-sea environments in China is increasing day by day, which plays an indispensable role in the rapid development of highway and railway transportation and the growth of the national economy. Most of the rivers and seas where these bridges are located are busy waterways, and the water flow, waves, wind and waves are complex. The bridge is an artificial obstacle to ships in water transportation, and there is a risk of ship collision, and this risk objectively exists throughout the entire life of the structure. Once a ship-bridge collision accident occurs, the bridge structure may need to bear a huge lateral impact load. Bridges in the designed navigable waters must fully consider the ship collision problem. Otherwise, it may lead to serious damage or even complete collapse of the bridge structure, causing huge economic losses, casualties and negative social impacts. The anti-ship collision problem is an important aspect that must be taken seriously. Therefore, it is very important to provide a device that can not only improve the anti-collision ability of the bridge but also retain or transfer the kinetic energy of the ship to ensure the safety of the bridge and the ship. At present, there are already many anti-ship collision devices for bridges (bridge piers, pile caps), such as separate anti-collision piers, rigid gravity piers, artificial islands, steel caissons, FRP anti-collision floating caissons, etc. Some anti-ship collision devices have also been reported in the open literature, for example:

[0003] 1. Chinese Patent: Anti-collision device for buffering and energy dissipation of bridges, application number: 201310290280.X, application date: June 28, 2013, applicant: Yang Guanghua, address: Room 301, No. 20, Lane 15, Baiyun Street, Ningbo City, Zhejiang Province 315010, inventor: Yang Guanghua, abstract: The present invention relates to an anti-collision device for buffering and energy dissipation of bridges, including an anti-collision framework with a long chute sleeved around the periphery of a bridge pier, an anti-collision pier or a pile cap of a navigation channel pier. A buffer is arranged between the two ends of the long chute of the anti-collision framework and the bridge pier, the anti-collision pier or the pile cap of the navigation channel pier. A buffer device is arranged between the two sides of the long chute of the anti-collision framework and the bridge pier, the anti-collision pier or the pile cap of the navigation channel pier. The head of the anti-collision framework presents a streamline or mountain-shaped head. An anti-ship collision height-limiting frame is arranged on the anti-collision frameworks in front of the bridge and on both sides of the navigation channel. The technical advantages are that when a ship collides with the head of the anti-collision framework and the anti-ship collision height-limiting frame, the long chute of the anti-collision framework moves, compressing the buffer to do work and consuming the kinetic energy of the ship. At the same time, under the guidance of the mountain-shaped inclined surface or streamline guiding surface at the head of the anti-collision framework, the ship is corrected, and the height-limiting frame blocks the over-height ship, protecting the bridge girder. When the ship collides with the anti-collision framework laterally, the buffer device of the long chute of the anti-collision framework protects the bridge pier or the anti-collision pier.

[0004] 2. Chinese Patent: A Passive Ship Collision Prevention Segment and Ship Collision Prevention Buffer Device for Bridge Structures, Application No.: 202110453707.8, Application Date: April 26, 2021, Applicant: Hunan University, Address: No. 1, South Lushan Road, Yuelu District, Changsha City, Hunan Province 410000, Inventors: Fan Wei, Su Huaxiang, Shao Xudong, Abstract: The present invention discloses a passive ship collision prevention segment and ship collision prevention buffer device for bridge structures, including a collision prevention box body. The collision prevention box body is a closed cavity structure surrounded by a steel-UHPC composite panel. The steel-UHPC composite panel includes a steel plate layer and a UHPC layer fixedly connected to each other. The UHPC layer is arranged on the outer side of the collision prevention box body, and energy dissipation steel pipes for offsetting the impact force of the hull are arranged inside the collision prevention box body. The energy dissipation steel pipes adopted inside the ship collision prevention buffer device of the present invention can greatly improve the energy dissipation effect of the structure, thereby effectively enhancing the anti-impact ability of the bridge structure; the parts in contact with the outside water and air are covered with UHPC. Since UHPC has excellent durability, it can ensure the working performance of the ship collision prevention device during its entire life cycle and reduce costs. The good durability of UHPC enables it to be applicable to various water environments. The hollow holes penetrating through the energy dissipation steel pipes make the proposed ship collision prevention device have good wave dissipation and buoyancy reduction effects.

[0005] 3. Chinese Patent: A Suspended Ship Collision Prevention Energy Dissipation Device, Application No.: 201810566651.5, Application Date: June 5, 2018, Applicant: Central South University, Address: No. 932, South Lushan Road, Yuelu District, Changsha City, Hunan Province 410083, Inventors: Wei Jun, Huang Dunwen, Liu Kang, Zhang Qiang, Wei Jun, Dong Rongzhen, Abstract: A suspended ship collision prevention energy dissipation device includes a rotating energy dissipation device arranged on the outer side of the pier on the water-facing side or / and the back water-facing side; a buffer device connected to the rotating energy dissipation device and suspended in the water; and a suspended guide rail arranged between the buffer device and the pier. When the hull impacts on the rotating energy dissipation device, the rotating energy dissipation device is used to deflect the bow of the ship and drive the entire collision prevention device to rotate in cooperation with the suspended guide rail. The present invention deflects the bow of the ship before the ship impacts on the pier through the rotating energy dissipation device and realizes passive avoidance in cooperation with the suspended guide rail, thereby reducing the impact force borne by the pier and minimizing the damage of the device to the greatest extent while ensuring the safety of the bridge and the ship.

[0006] 4. Chinese Patent: A Suspended Multi - energy - dissipating Ship - Collision Prevention Device, Application No.: 201811487357.1, Application Date: December 6, 2018, Applicant: Central South University, Address: No. 932, South Lushan Road, Yuelu District, Changsha City, Hunan Province 410083, Inventors: Wei Jun, Huang Dunwen, Liu Kang, Zhang Qiang, Lin Quanfu, Yang Bincai, Wei Jun, Chen Shanting, Dong Rongzhen, Abstract: A suspended multi - energy - dissipating ship - collision prevention device includes an outermost anti - collision box with an inclination angle; an "L" - shaped base floating box connected to the bridge pier and supporting the anti - collision box; a buffer device arranged between the base floating box and the external anti - collision box. When the hull impacts on the energy - dissipating device, large - deformation energy dissipation occurs through the buffer device; the supporting surface of the base floating box is higher than the water level, preventing the buffer device from being immersed in water and rusting, and increasing durability; the outer thin wall of the anti - collision box slopes downward, which can prevent the anti - collision box from tilting up during the ship - collision process and ensure the best working efficiency of the buffer device. In the present invention, the whole device floats on the water surface through the base floating box. When a ship collides, the external anti - collision box directly bears the impact force, and at the same time transmits most of the collision force to the buffer device, causing it to be passively extruded and deformed for energy dissipation, thereby reducing the impact force borne by the bridge pier. While ensuring the safety of the bridge and the ship, the damage of this device is minimized to the greatest extent.

[0007] 5. Chinese Patent: An Active Ship - Collision Prevention Device for Bridges, Application No.: 201410102577.3, Application Date: March 19, 2014, Patentee: Harbin Engineering University, Address: Intellectual Property Office, Science and Technology Department, Harbin Engineering University, No. 145, Nantong Street, Nangang District, Harbin City, Heilongjiang Province 150001, Inventors: Sun Xiaodan, Sun Xiaoyu, Wang Binsheng, He Jian, Wang Yongjun, Xu Lidan, Huang Xi, Yue Pengfei, Abstract: The present invention provides an active ship - collision prevention device for bridges. It includes support rods fixedly installed on the left and right sides of the bridge pier. A spring buffer device is arranged in the middle of the support rods. The other end of the support rods is connected to a rolling shaft, and the rolling shaft is connected to a leather ring. The present invention solves the problems that in the anti - collision design of civil engineering bridges, the existing anti - collision devices occupy the navigation area, the anti - collision and energy - absorption effects are not ideal, and the problem of preventing the bow from piercing and causing injury cannot be solved.

[0008] Through research, it is found that for isolation piers, gravity piers, and artificial islands, although they can protect the bridge well, first, they require a large layout space (compressing the navigation clearance), and second, they cannot protect the safety of ships and may even cause secondary accidents. For steel cofferdams, since the first - impacted part is the thin steel plate on the surface layer, its anti - impact performance is very limited and it is easily pierced by the ship's bow, and it cannot play the role of transmitting the impact force to the entire anti - collision component. In addition, for lattice - type steel plates, under the action of ship collision, they may undergo bending failure or buckling failure. Different failure forms result in different energy - dissipation capabilities of the device, so that the anti - collision grade of the steel cofferdam anti - collision device cannot be clearly defined. For FRP anti - collision floating boxes, they are easily damaged under the scouring action of waves, and the durability of the device is difficult to guarantee.

[0009] In view of the deficiencies of the above-mentioned existing anti-collision devices, there is an urgent need for a bridge anti-ship collision buffer device and construction method that can take into account both bridges and ships, can better transmit the impact force (good anti-impact performance), can quantify the anti-collision ability, and is not easily eroded and damaged. Summary of the Invention

[0010] The purpose of the present invention is to provide a construction method for a buffer device that can be used for cross-river or cross-sea bridges and improves the anti-collision ability of bridge piers and pile caps. The buffer device after construction has the characteristics of modular assembly, puncture resistance, hierarchical energy dissipation, and quantifiable anti-collision ability.

[0011] The technical solution adopted is as follows:

[0012] A construction method for a hierarchical energy dissipation anti-ship collision buffer device with quantifiable anti-collision ability, the construction steps of which include:

[0013] (1) According to the required dimensions, first manufacture a hollow outer steel shell and a hollow inner steel shell in the factory, and reserve filling ports for filling materials such as concrete, sand or foam. After the internal filling materials are filled and cured, the reserved ports are sealed.

[0014] (2) Use the lower sealing steel plate as the bottom plate to connect the hollow outer steel shell and the hollow inner steel shell and / or the hollow outer steel shell, the hollow inner steel shell and the side sealing steel plate to form an energy dissipation anti-collision box with an open upper part.

[0015] (3) Manufacture a thin steel plate outer sleeve for the energy dissipation element, fill the outer sleeve with fine sand or foam-like flexible materials, and then seal the top plate of the sleeve to form an independent barrel-shaped semi-rigid energy dissipation element and a barrel-shaped flexible energy dissipation element.

[0016] (4) Arrange the barrel-shaped semi-rigid energy dissipation elements and the barrel-shaped flexible energy dissipation elements in layers in the energy dissipation anti-collision box with an open upper part, and fill the gaps with foamed body filling materials.

[0017] (5) Use the upper sealing steel plate to seal the energy dissipation anti-collision box with an open upper part, and perform anti-corrosion coating to form a complete energy dissipation anti-collision box module.

[0018] (6) Transport and hoist the above energy dissipation anti-collision box modules to the site, use connectors to connect each module to form a complete anti-collision buffer device, and surround and set it around the bridge pier or pile cap to be put into use.

[0019] Further preferred: If the anti-ship collision buffer device adopts an attached floating installation method, a rubber fender is arranged between the anti-ship collision buffer device and the bridge pier or the bearing platform. If the bridge pier is a circular pier, the rubber fender in contact with the bridge pier can be modified to be arranged in a circular circumferential direction. When the ship collides, the anti-collision device can rotate to a certain extent, guiding and deflecting the bow of the ship, reducing energy conversion, and reducing the impact force of the ship's head-on collision. The rubber fender can play a good buffering role, increasing the impact contact time and reducing the initial impact force.

[0020] Further preferred: If the anti-ship collision buffer device adopts an attached fixed installation method, fixed connection bolts for fixedly connecting with the bridge pier or the bearing platform are installed on the outer wall of the hollow inner steel shell.

[0021] The anti-ship collision buffer device is composed of a plurality of energy-consuming anti-collision box modules connected and combined through connecting pieces; each energy-consuming anti-collision box module includes a sealed and hollow energy-consuming anti-collision box. In the energy-consuming anti-collision box, barrel-shaped semi-rigid energy-consuming elements and barrel-shaped flexible energy-consuming elements are arranged in layers, and a foam filling material is filled. The foam filling material fills the gap between the barrel-shaped semi-rigid energy-consuming elements and the barrel-shaped flexible energy-consuming elements; the outer shell of the energy-consuming anti-collision box is a hollow outer steel shell, and the hollow outer steel shell is filled with a dense rigid material. The inner shell of the energy-consuming anti-collision box is a hollow inner steel shell, and the hollow inner steel shell is filled with a flexible material. When installing the energy-consuming anti-collision box module, the axis should be perpendicular to the direction of ship collision. The cross-section of the energy-consuming anti-collision box is arc-shaped, triangular, semi-circular, square or other shapes. The anti-collision device usually uses energy-consuming anti-collision boxes with arc-shaped or semi-circular and square cross-sections according to the shape of the bridge pier or the bearing platform. The energy-consuming anti-collision box with an arc-shaped or square cross-section is composed of a hollow outer steel shell, a hollow inner steel shell, an upper sealing steel plate, a lower sealing steel plate and side sealing steel plates sealed and spliced. The energy-consuming anti-collision box with a semi-circular cross-section is composed of a hollow outer steel shell, a hollow inner steel shell, an upper sealing steel plate and a lower sealing steel plate sealed and spliced. When the bridge pier or the bearing platform is square, the energy-consuming anti-collision box modules with semi-circular and square cross-sections are combined through connecting pieces to form an anti-ship collision buffer device. When the bridge pier or the bearing platform is cylindrical, the energy-consuming anti-collision box modules with arc-shaped cross-sections are combined through connecting pieces to form an anti-ship collision buffer device.

[0022] Further preferred: The hollow outer steel shell is used to transmit the impact force and requires relatively large stiffness. Ordinary concrete, HUPC or other dense rigid materials can be filled in the steel cavity.

[0023] Further preferred: The hollow inner steel shell is used to protect the bridge pier and abutment. The stiffness cannot be too large to avoid causing too large a slapping force on the pier and abutment when being impacted. Fine sand or foam-like materials can be filled in the steel cavity.

[0024] Further preferably, the energy dissipation elements in the energy-consuming anti-collision box can be arranged in multiple layers. By adjusting the stiffness of the filling materials in the barrel shells of the energy dissipation elements in different layers, the anti-collision device can achieve the purpose of hierarchical energy dissipation; the purpose of quantifying the anti-collision ability can be achieved by determining the number of energy dissipation elements, the type of energy dissipation element materials, and the specification dimensions of the energy dissipation elements. The barrel-shaped semi-rigid energy dissipation element includes a hollow and sealed barrel shell filled with filling sand or other flexible materials. The barrel-shaped flexible energy dissipation element includes a hollow and sealed barrel shell filled with filling foam.

[0025] Further preferably, the connecting piece adopts a connecting piece of steel plate plus bolts or a connecting piece of steel plate plus pins. That is, the steel plates are respectively welded and fixed to two adjacent energy-consuming anti-collision box modules, and then the steel plates of the two energy-consuming anti-collision box modules are fixedly connected by bolts; or the steel plates are respectively welded and fixed to two adjacent energy-consuming anti-collision box modules, and then the steel plates of the two energy-consuming anti-collision box modules are connected by pins.

[0026] Compared with the prior art, the advantages of the present invention are as follows:

[0027] 1. This buffer device has the advantages of anti-puncture, good force transmission performance, quantifiable energy dissipation capacity, and hierarchical energy dissipation; it has a wide range of applications, can be either floating or fixed, and can adapt to piers of different shapes, and can be used as a buffer device for bridges or other structures to prevent impact.

[0028] 2. The hollow outer steel shell of this buffer device is made of concrete or other rigid materials filled in the steel cavity, making the entire outer shell have the characteristics of large stiffness, high strength, good impact resistance, not easily being punctured, and being able to transmit the impact force to the entire energy dissipation anti-collision box module, enabling the overall coordinated force application, improving the anti-collision ability, and achieving a lower cost under the same ability.

[0029] 3. The energy dissipation elements of this buffer device can achieve quantifiable anti-collision ability. Since the energy dissipation core is a cylindrical (not limited to) component arranged in a layered and compact manner, the energy dissipation ability of a single cylindrical component can be determined through experiments. Subsequently, a performance reference table of energy dissipation elements with different shapes and sizes and a relational formula for the overall anti-collision ability after combined arrangement can be made to realize the mass production and supporting use of this invention.

[0030] 4. The hierarchical arrangement of energy dissipation elements with different stiffnesses in this buffer device can achieve hierarchical energy dissipation. Under small impacts, the rubber fender plays a role; under medium impacts, the inner layer energy dissipation elements filled with flexible materials such as filling foam play a role; under large impacts, first the rubber fender and the inner layer flexible energy dissipation elements are damaged to reduce the impact force and extend the impact time, and then the outer layer energy dissipation elements with larger stiffness finally offset the impact force, which can simultaneously adapt to the impacts of large, medium, and small ships and play an anti-collision buffer role in the full range.

[0031] 5. The outer steel plate of the anti-collision box module of this buffer device is not the main load-bearing member when being impacted. A certain degree of rust has little impact on the overall anti-collision ability of this invention. Therefore, the anti-corrosion requirements can be reduced to lower the maintenance cost. Brief Description of the Drawings

[0032] Figure 1 It is a schematic plan view of this buffer device floatingly applied to a rectangular pier of a bridge;

[0033] Figure 2 It is a schematic plan view of this buffer device floatingly applied to a circular pier of a bridge;

[0034] Figure 3 It is a schematic sectional view of this buffer device floatingly applied to a bridge pier;

[0035] Figure 4 It is a schematic plan view of this buffer device fixedly applied to a rectangular pier of a bridge;

[0036] Figure 5 It is for this buffer device fixedly applied to a circular pier of a bridge;

[0037] Figure 6 It is a schematic sectional view of this buffer device fixedly applied to a bridge pier;

[0038] The names corresponding to the serial numbers in the figure are:

[0039] 1. Hollow outer steel shell; 2. Hollow inner steel shell; 3. Barrel-shaped semi-rigid energy dissipation element; 4. Barrel-shaped flexible energy dissipation element; 5. Rubber fender; 6. Connector; 7. Foamed body filling material; 8. Upper sealing steel plate; 9. Lower sealing steel plate; 10. Fixed connection bolt; 11. Bridge pier or bearing platform; 12. Side sealing steel plate. Detailed Implementation Modes

[0040] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0041] Embodiment 1

[0042] The following steps can be adopted to floatingly construct and apply the graded energy dissipation anti-ship-collision buffer device with quantifiable anti-collision ability to a bridge pier:

[0043] (1) According to the required dimensions, first manufacture the hollow outer steel shell 1 and the hollow inner steel shell 2 in the factory, and reserve filling ports for filling materials such as concrete, sand or foam. After the internal filling materials are filled and cured, then seal the reserved ports.

[0044] (2) Use the lower sealing steel plate 9 as the bottom plate to connect the hollow outer steel shell 1 with the hollow inner steel shell 2 and / or the hollow outer steel shell 1, the hollow inner steel shell 2 and the side sealing steel plate 12 to form an energy-dissipating anti-collision box with an open upper part.

[0045] (3) Fabricate the thin steel plate outer barrel of the energy-dissipating element. After filling the outer barrel with fine sand or foam-like flexible materials, cover the top plate of the barrel to form independent barrel-shaped semi-rigid energy-dissipating elements 3 and barrel-shaped flexible energy-dissipating elements 4.

[0046] (4) Arrange the barrel-shaped semi-rigid energy-dissipating elements 3 and barrel-shaped flexible energy-dissipating elements 4 in layers in the energy-dissipating anti-collision box with an open upper part, and fill the gaps with foamed filling material 7.

[0047] (5) Use the upper sealing steel plate 8 to cover the energy-dissipating anti-collision box with an open upper part, and perform anti-corrosion coating to form a complete energy-dissipating anti-collision box module; and a rubber fender 5 is fixed on the outer wall of the hollow inner steel shell 2 of the energy-dissipating anti-collision box.

[0048] (6) Transport and hoist the above energy-dissipating anti-collision box module to the site. After positioning, use the connector 6 to connect each module to form a complete anti-collision buffer device, which is arranged around the pier or pile cap 11 in the water. The rubber fender 5 is located between the anti-collision buffer device and the pier or pile cap 11, and then it can be put into use.

[0049] The described anti-ship collision buffer device is composed of multiple energy-dissipating anti-collision box modules connected and combined by the connector 6, and is arranged around the pier or pile cap 11; the energy-dissipating anti-collision box module includes an energy-dissipating anti-collision box. When applied to a rectangular pier of a bridge, the cross-section of the energy-dissipating anti-collision box has two shapes: semi-circular and square. The energy-dissipating anti-collision box with a square cross-section is composed of a hollow outer steel shell 1, a hollow inner steel shell 2, an upper sealing steel plate 8, a lower sealing steel plate 9 and a side sealing steel plate 12 sealed and spliced together. The energy-dissipating anti-collision box with a semi-circular cross-section is composed of a hollow outer steel shell 1, a hollow inner steel shell 2, an upper sealing steel plate 8 and a lower sealing steel plate 9 sealed and spliced together; when applied to a circular pier of a bridge, the energy-dissipating anti-collision box module includes an energy-dissipating anti-collision box. The cross-section of the energy-dissipating anti-collision box is arc-shaped. The energy-dissipating anti-collision box with an arc-shaped cross-section is composed of a hollow outer steel shell 1, a hollow inner steel shell 2, an upper sealing steel plate 8, a lower sealing steel plate 9 and a side sealing steel plate 12 sealed and spliced together; barrel-shaped semi-rigid energy-dissipating elements 3 and barrel-shaped flexible energy-dissipating elements 4 are arranged in layers in the energy-dissipating anti-collision box, and a foamed filling material 7 is filled in the gaps between the barrel-shaped semi-rigid energy-dissipating elements 3 and the barrel-shaped flexible energy-dissipating elements 4; the hollow outer steel shell 1 is filled with dense rigid material, and the hollow inner steel shell 2 is filled with flexible material. The dense rigid material is concrete. The flexible material is fine sand.

[0050] The described barrel-shaped semi-rigid energy dissipation element 3 includes a hollow and sealed barrel shell, which is filled with filling sand or other flexible materials.

[0051] The described barrel-shaped flexible energy dissipation element 4 includes a hollow and sealed barrel shell, which is filled with filling foam.

[0052] On the outer wall of the hollow inner steel shell 2 of the energy dissipation anti-collision box, a rubber fender 5 is fixed. The rubber fender 5 can play a good buffering role, increase the impact contact time, and reduce the initial impact force.

[0053] The described connecting piece 6 adopts a connecting piece of steel plate plus bolts or a connecting piece of steel plate plus pins. That is, the steel plates are respectively welded and fixed to two adjacent energy dissipation anti-collision box modules, and then the steel plates of the two energy dissipation anti-collision box modules are fixedly connected by bolts; or the steel plates are respectively welded and fixed to two adjacent energy dissipation anti-collision box modules, and then the steel plates of the two energy dissipation anti-collision box modules are connected by pins.

[0054] Embodiment 2

[0055] The following steps can be used to floatingly construct and apply the hierarchical energy dissipation anti-ship collision buffer device with quantifiable anti-collision ability to bridge piers:

[0056] (1) According to the required dimensions, first manufacture the hollow outer steel shell 1 and the hollow inner steel shell 2 in the factory, and reserve filling ports for concrete, sand or foam-like filling materials. After the internal filling materials are filled and cured, then seal the reserved ports.

[0057] (2) Use the lower sealing steel plate 9 as the bottom plate to connect the hollow outer steel shell 1 and the hollow inner steel shell 2 and / or the hollow outer steel shell 1, the hollow inner steel shell 2 and the side sealing steel plate 12 to form an upper-open energy dissipation anti-collision box.

[0058] (3) Manufacture the thin steel plate outer sleeve barrels of the energy dissipation elements. After filling fine sand or foam-like flexible materials in the outer sleeve barrels, seal the top plates of the sleeve barrels to form independent barrel-shaped semi-rigid energy dissipation elements 3 and barrel-shaped flexible energy dissipation elements 4.

[0059] (4) Arrange the barrel-shaped semi-rigid energy dissipation elements 3 and the barrel-shaped flexible energy dissipation elements 4 in layers in the upper-open energy dissipation anti-collision box, and fill the gap with a foamed body filling material 7.

[0060] (5) Use the upper sealing steel plate 8 to seal the upper-open energy dissipation anti-collision box, and perform anti-corrosion coating to form a complete energy dissipation anti-collision box module.

[0061] (6) Transport and hoist the above energy dissipation anti-collision box modules to the site, and fix them on the required bridge piers or pile caps 11 through the fixed connection bolts 10. Finally, use the connecting piece 6 to connect each module to form a complete anti-collision buffer device, which is arranged around the bridge piers or pile caps 11 and can be put into use.

[0062] The described anti-ship collision buffer device is composed of multiple energy-consuming anti-collision box modules connected and combined through a connecting piece 6, and is arranged in a surrounding manner around a pier or a bearing platform 11; the energy-consuming anti-collision box module includes an energy-consuming anti-collision box. When applied to a rectangular pier of a bridge, the cross-section of the energy-consuming anti-collision box has two shapes: semi-circular and square. The energy-consuming anti-collision box with a square cross-section is composed of a hollow outer steel shell 1, a hollow inner steel shell 2, an upper sealing steel plate 8, a lower sealing steel plate 9, and a side sealing steel plate 12 sealed and spliced together. The energy-consuming anti-collision box with a semi-circular cross-section is composed of a hollow outer steel shell 1, a hollow inner steel shell 2, an upper sealing steel plate 8, and a lower sealing steel plate 9 sealed and spliced together. When applied to a circular pier of a bridge, the cross-section of the energy-consuming anti-collision box is arc-shaped. The energy-consuming anti-collision box with an arc-shaped cross-section is composed of a hollow outer steel shell 1, a hollow inner steel shell 2, an upper sealing steel plate 8, a lower sealing steel plate 9, and a side sealing steel plate 12 sealed and spliced together. Barrel-shaped semi-rigid energy dissipation elements 3 and barrel-shaped flexible energy dissipation elements 4 are arranged in layers in the energy-consuming anti-collision box, and a foamed body filling material 7 is filled. The foamed body filling material 7 fills the gap between the barrel-shaped semi-rigid energy dissipation elements 3 and the barrel-shaped flexible energy dissipation elements 4. The hollow outer steel shell 1 is filled with a dense rigid material, and the hollow inner steel shell 2 is filled with a flexible material. The dense rigid material is concrete. The flexible material is fine sand.

[0063] The described barrel-shaped semi-rigid energy dissipation element 3 includes a hollow and sealed barrel shell, and the barrel shell is filled with filling sand or other flexible materials.

[0064] The described barrel-shaped flexible energy dissipation element 4 includes a hollow and sealed barrel shell, and the barrel shell is filled with filling foam.

[0065] A fixed connecting bolt 10 for fixedly connecting with a pier or a bearing platform 11 is installed on the outer wall of the hollow inner steel shell 2 of the energy-consuming anti-collision box.

[0066] The described connecting piece 6 adopts a connecting piece of steel plate plus bolt or a connecting piece of steel plate plus pin bolt. That is, the steel plates are respectively welded and fixed to two adjacent energy-consuming anti-collision box modules, and then the steel plates of the two energy-consuming anti-collision box modules are fixedly connected through bolts; or the steel plates are respectively welded and fixed to two adjacent energy-consuming anti-collision box modules, and then the steel plates of the two energy-consuming anti-collision box modules are connected through pin bolts.

[0067] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principle and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. Construction method of a hierarchical energy-dissipating anti-ship-collision buffer device capable of quantifying anti-collision ability, characterized in that: The described ship collision prevention buffer device is composed of multiple energy-consuming anti-collision box modules connected and combined by a connecting piece (6); each energy-consuming anti-collision box module includes a sealed and hollow energy-consuming anti-collision box, in which barrel-shaped semi-rigid energy dissipation elements (3), barrel-shaped flexible energy dissipation elements (4) are arranged in layers, and a foam filling material (7) is filled. The foam filling material (7) fills the gap between the barrel-shaped semi-rigid energy dissipation elements (3) and the barrel-shaped flexible energy dissipation elements (4); the outer shell of the energy-consuming anti-collision box is a hollow outer steel shell (1), and a dense rigid material is filled in the hollow outer steel shell (1). The inner shell of the energy-consuming anti-collision box is a hollow inner steel shell (2), and a flexible material is filled in the hollow inner steel shell (2); the construction steps of the described ship collision prevention buffer device include: 1) According to the required size, first manufacture the hollow outer steel shell (1) and the hollow inner steel shell (2) in the factory, and reserve filling ports for filling materials such as concrete, sand or foam. After the internal filling materials are filled and cured, then seal the reserved ports. 2) Use the lower sealing steel plate (9) as the bottom plate to connect the hollow outer steel shell (1) and the hollow inner steel shell (2) and / or the hollow outer steel shell (1), the hollow inner steel shell (2) and the side sealing steel plate (12) to form an energy-consuming anti-collision box with an open upper part. 3) Manufacture the thin steel plate outer sleeve barrels of the energy dissipation elements, fill fine sand or foam-like flexible materials in the outer sleeve barrels, and then seal the top plates of the sleeve barrels to form independent barrel-shaped semi-rigid energy dissipation elements (3) and barrel-shaped flexible energy dissipation elements (4). 4) Arrange the barrel-shaped semi-rigid energy dissipation elements (3) and the barrel-shaped flexible energy dissipation elements (4) in layers in the energy-consuming anti-collision box with an open upper part, and fill the foam filling material (7) in the gap. 5) Use the upper sealing steel plate (8) to seal the energy-consuming anti-collision box with an open upper part, and do a good job in anti-corrosion coating to form a complete energy-consuming anti-collision box module. 6) Transport and hoist the above energy-consuming anti-collision box modules to the site, use the connecting piece (6) to connect each module to form a complete anti-collision buffer device, and enclose and set it around the bridge pier or the bearing platform (11), then it can be put into use.

2. The construction method of the graded energy-dissipating anti-ship-collision buffer device with quantifiable anti-collision ability according to claim 1, characterized in that: The described dense rigid material is concrete; the flexible material is fine sand or foam-like material.

3. The construction method of the hierarchical energy-dissipating anti-ship-collision buffer device with quantifiable anti-collision ability according to claim 1, characterized in that: The described barrel-shaped semi-rigid energy dissipation element (3) includes a hollow and sealed barrel shell, and filling sand is filled in the barrel shell.

4. The construction method of the hierarchical energy-dissipating anti-ship-collision buffer device with quantifiable anti-collision ability according to claim 1, characterized in that: The described barrel-shaped flexible energy dissipation element (4) includes a hollow and sealed barrel shell, and filling foam is filled in the barrel shell.

5. The construction method of the hierarchical energy-dissipating anti-ship-collision buffer device with quantifiable anti-collision ability according to claim 1, characterized in that: A rubber fender (5) is fixed on the outer wall of the hollow inner steel shell (2) of the energy-consuming anti-collision box.

6. The construction method of the hierarchical energy-dissipating anti-ship-collision buffer device with quantifiable anti-collision ability according to claim 1, characterized in that: Fixed connection bolts (10) for fixedly connecting with the bridge pier or the bearing platform (11) are installed on the outer wall of the hollow inner steel shell (2) of the energy-consuming anti-collision box.

7. The construction method of the hierarchical energy-dissipating ship collision prevention buffer device with quantifiable anti-collision ability according to claim 1, characterized in that: The described connecting piece (6) adopts a connecting piece of steel plate plus bolts or a connecting piece of steel plate plus pins.

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