CN212452261U

CN212452261U - Section assembled ship collision prevention device unit and ship collision prevention device

Info

Publication number: CN212452261U
Application number: CN202021619961.8U
Authority: CN
Inventors: 樊伟; 孙文彪; 刘斌; 邵旭东
Original assignee: Hunan University
Current assignee: Hunan University
Priority date: 2020-08-06
Filing date: 2020-08-06
Publication date: 2021-02-02
Anticipated expiration: 2030-08-06

Abstract

The utility model discloses a device unit is hit to ship is prevented to segment pin-connected panel, prevent that the ship from hitting the device unit and be boxed structure, boxed structure is including locating the outer panel of the outer protection of boxed structure and locating the inside power consumption inner box of boxed structure, be equipped with UHPC power transmission sandwich panel between protection outer panel and the power consumption inner box. The utility model also provides a device is hit to ship is prevented to segmentation pin-connected panel, it is a plurality of to prevent that the ship from hitting the device unit including a plurality of foretell ship and hitting the device unit, a plurality of prevent that the ship hits device unit end to end connection becomes one and encircles pier or cushion cap setting, or a plurality of prevent that the ship hits device unit interval distribution around pier or cushion cap. The utility model discloses a ship device that hits is prevented to segment pin-connected panel has that the construction is simple and convenient, the power consumption is efficient, the power consumption ability reinforce, the power consumption mode is stable, pass the advantage such as the power route is clear and definite, the durability is good, the security is high, has very big use value and good economic benefits, has wide application prospect in deep water bridge anticollision field.

Description

Section assembled ship collision prevention device unit and ship collision prevention device

Technical Field

The utility model belongs to bridge auxiliary assembly field especially relates to a ship hits device is prevented to bridge.

Background

In designing a pier in a navigable water area, a ship collision problem must be considered. Otherwise, after the ship impacts the bridge pier, the bridge pier may fail and even the upper bridge structure collapses, and once the bridge serving as the transportation hub has an accident, huge economic loss and very negative social influence are caused, and even casualties may be caused. Statistically, 34 important bridges in the world collapse due to the impact of ships between 1960 and 2007, which causes 346 deaths. When the pier in the navigation water area is designed, if the power requirement of ship collision is greater than the anti-collision capacity of the pier structure, a necessary protection device is required to be arranged to reduce the risk of the pier being damaged under collision.

The existing anti-collision structures connected with bridge structures (especially piers, bearing platforms and the like) mostly adopt traditional engineering materials or use single materials, such as steel structure fenders, FRP flexible anti-collision buoyancy tanks and the like. Most of the traditional engineering materials have insufficient mechanical properties, and structures composed of single materials (including structures composed of novel materials) are often only partially outstanding in properties, while other properties are relatively weak.

The existing widely used steel structure fender mainly comprises a vertical outer plate, a horizontal and vertical stiffening steel plate or other steel members which are welded and the like; the kinetic energy of impact is mainly dissipated by means of deformation of the steel member in the collision process. However, the existing research finds that the traditional steel structure fender has the following obvious disadvantages as a measure for preventing ship collision: (1) because the thickness of the outer plate is generally thinner, the outer plate is often damaged too early in the collision process, and the deformation area of the outer plate is concentrated in the local area which is firstly contacted with the bow, so that the steel members which participate in deformation energy consumption in the inner part are very limited, and the energy consumption efficiency is very low; (2) because the internal energy consumption component is mainly an isotropic lattice steel plate, the horizontal rigidity and the vertical rigidity are close to each other, the failure mode of the structure under collision is difficult to control, and the energy consumption capability of the structure cannot be accurately estimated and designed; (3) the steel structure is easy to corrode at the water surface junction, has poor durability, and even can be a vulnerable component in the whole life cycle design of the bridge; (4) sparks are easy to generate when the ship collides with the steel structure fender, and serious accidents such as fire disasters and explosions can be caused after the collision when the ship carries inflammable and explosive goods. Although the rigidity of the outer panel can be increased to a certain extent by adding measures such as horizontal stiffening and the like to the steel structure fender, other defects of the steel structure fender cannot be solved all the time.

The flexible anticollision flotation tank of FRP that another kind of comparatively neotype buffer stop adopted combined material to make, the flexible anticollision flotation tank of FRP has following defect: (1) the FRP material has anisotropic property, and the strength and the elastic modulus in the direction perpendicular to the fiber direction are too low; (2) the interlayer tensile strength and the interlayer shear strength of the FRP are low, the connection of the multilayer FRP is difficult, (3) the elastic modulus of the FRP material is small, about 1/20-1/2 of steel, and the deficiency of rigidity needs to be made up by the geometric rigidity of a member; (4) the FRP material has poor fireproof performance, the critical temperature is only about 300 ℃, although the FRP material can be improved by adding a flame retardant, so that the FRP which is expensive per se has no economy; (5) the connection of unit box chambers of the FRP flexible anti-collision buoyancy tank and the box shell, column shell and the like generally need to be in close contact, the size and the structural quality of a product need to be guaranteed by high-precision manufacturing, the mechanized process forming is difficult to realize at home and abroad at present, the product quality and the precision are difficult to guarantee by adopting the hand lay-up process forming, and the technical difficulty is large.

In summary, the conventional protection device is usually made of conventional engineering materials or a single material, and it is difficult to meet the performance requirements of the bridge anti-ship collision device.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the technical problem that overcome not enough and the defect mentioned in the above background art, provide a festival section pin-connected panel that the biography power route is clear and definite, the power consumption ability is strong, the durability is good prevent that the ship hits the device unit and prevent that the ship hits the device. In order to solve the technical problem, the utility model provides a technical scheme does:

the ship collision prevention device unit is of a sealed box structure, the box structure comprises a protective outer panel arranged on the outer layer of the box structure and an energy consumption inner box arranged inside the box structure, and a UHPC force transmission sandwich plate is arranged between the protective outer panel and the energy consumption inner box.

In the above-mentioned segmental assembled ship collision prevention device unit, preferably, the protective outer panel is a silicone rubber panel or an FRP panel or other material with good durability. Preferably, the protective outer panel forms a closed structure, and the energy-consuming inner box and the UHPC force-transferring sandwich plate are arranged inside the closed structure.

In the above section assembled ship collision prevention device unit, preferably, the energy dissipation inner box includes a closed inner cavity mainly defined by metal construction plates, and a metal energy dissipation member is arranged in the closed inner cavity. The metal energy dissipation component is mainly characterized in that the metal energy dissipation component is subjected to elastic bending deformation and plastic collapse successively through progressive compression in the ship collision direction, and then is extruded, so that energy consumption is realized, and the metal energy dissipation component and a metal wall of a closed inner cavity can be subjected to simple operations such as welding, connecting piece connection and the like.

In the segment-assembled ship collision prevention device unit, preferably, the metal energy dissipation member includes a plurality of cell structures, each cell structure is a hexagonal pipe, a circular pipe or a metal member formed by splicing and combining metal corrugated plates into a honeycomb shape, the cell structures are filled with energy dissipation materials, and the length direction of each cell structure is perpendicular to the ship collision direction. The metal corrugated plate is formed by prepressing and bending a metal plate (such as an aluminum plate, a steel plate, a stainless steel plate and the like), the metal pipe can also be a plurality of polygonal or circular metal pipes (the specifications of the metal pipes can be different), the cell structure is formed by tightly attaching a plurality of metal pipes, and adjacent cell elements can be welded and connected through bolts or not. The filled energy dissipation material can be polyurethane foam, metal foam, foam concrete and other materials with the characteristics of light weight, convenient pouring and the like.

The utility model discloses in, after the collision takes place, metal energy dissipation component is under the compression of outer panel, the cell structure progressively takes place to warp by the compression, because energy dissipation materials such as built-in foam, restrict the deformation of cell structure, make cell structure and energy dissipation material obtain further compaction, when taking place violent collision, the cell structure is as the skeleton part of power consumption component, can play main power consumption's effect, because inside closely fills light material, can make cell structure and intussuseption energy dissipation material etc. will appear successive conquassation phenomenon, this kind of cell structure combines light power consumption material as the skeleton, the two synergism, very big power consumption ability has, can furthest exert buffer stop's energy dissipation, thereby play the effect of protection boats and ships and bridge structures. In addition, the cell element structure can also play a role in supporting the inner box because the cell element structure is used as a framework of the energy dissipation part, so that the out-of-plane rigidity of the energy dissipation inner box is improved, and the structural rigidity required by the energy dissipation inner box as a pouring template is met.

In the segment assembled ship collision prevention device unit, preferably, if the protective outer panel has certain rigidity, if an FRP panel is adopted, the UHPC force transmission sandwich plate is cast in situ by taking the protective outer panel as an outer formwork and taking the energy consumption inner box as an inner formwork; the inner wall of the outer protective panel is provided with a first preset connecting piece for connecting the outer protective panel and the UHPC force transmission sandwich plate into a whole, and the outer wall of the energy consumption inner box is provided with a second preset connecting piece for connecting the energy consumption inner box and the UHPC force transmission sandwich plate into a whole. If the protective outer panel is made of materials with lower rigidity, such as silicon rubber, an outer template required for pouring the UHPC force transmission sandwich plate is suggested to be independently arranged, and after the UHPC force transmission sandwich plate is formed, a silicon rubber plate is closely attached to the outer side of the UHPC force transmission sandwich plate.

The utility model discloses in, when the protection outer panel sets up to the FRP panel, it is the combined material who forms through shaping processes such as winding, mould pressing or pultrusion by reinforced fiber material (including glass fiber, carbon fiber, aramid fiber etc.) and base member material, wherein fibrous material preferably adopts glass fiber and carbon fiber. When the protective outer panel is a silicon rubber panel, the main chain is formed by silicon and oxygen atoms alternately, two organic groups are usually connected to the silicon atoms, and the rubber has extremely excellent corrosion resistance and weather resistance, and the contact rigidity of the structure in collision can be reduced by utilizing the small rigidity of the silicon rubber. The UHPC force transmission sandwich plate adopts a UHPC panel which is formed by pouring active powder concrete or ultra-high performance fiber reinforced concrete, and when the protective outer panel adopts an FRP panel, no steel bar is arranged in the UHPC force transmission sandwich plate; when the protective outer panel adopts a silicon rubber panel, the UHPC force transmission sandwich plate needs to be provided with vertical steel bars and horizontal steel bars so as to further improve the anti-collision capacity of the force transmission structure.

As a general technical idea, the utility model provides a device is hit to segmentation pin-connected panel ship, including a plurality of foretell device units are hit to the ship, and is a plurality of prevent that the ship hits device unit end to end connection becomes one and encircles pier or cushion cap setting, or a plurality of prevent that the ship hits device unit interval distribution around pier or cushion cap. For the same pier or bearing platform, the segment assembled ship collision preventing devices can be arranged at different heights.

Among the ship collision device is prevented to above-mentioned segmental assembly type, preferred, be equipped with a plurality of D type rubber fender on the protection outer panel, D type rubber fender includes hollow D type outer rubber, be equipped with hollow D type inlayer steel member in the inner chamber of hollow D type outer rubber. The D-shaped rubber fender may be provided on a protective outer panel adjacent to a bridge pier or a cap, or may be provided on a protective outer panel on the side of collision with a ship. The utility model discloses at the D type rubber fender that sets up between anti-ship collision device and pier or cushion cap, one deck corrosion resistant plate has been add to the inboard of this kind of rubber fender, and traditional rubber fender looks for the undersize because its rigidity looks with bow, pier, discovers among the collision analysis, as the traditional rubber fender who improves pouring jacket and pier contact, when the collision takes place, can produce initial bat and hit the power phenomenon, and the utility model discloses add the hollow D type inlayer steel member of one deck (like the steel sheet) in the inner chamber of the outer rubber of hollow D type, can obviously reduce initial bat and hit the power. The D-shaped rubber fender can be horizontally arranged or vertically arranged. Additionally, the utility model discloses in adopt the special construction design of D type rubber fender, its and the aforesaid prevents that the ship from hitting the functional gradient compoboard of device unit and mutually support to be closed well, when taking place the striking, the shock resistance of functional gradient compoboard can further be improved in the existence of this kind of D type rubber fender.

In the segment assembled ship collision prevention device, preferably, one end face of the adjacent end faces of the adjacent ship collision prevention device units is provided with at least one tenon, the other end face is provided with at least one groove matched with the tenon, and the adjacent ship collision prevention device units are connected into a whole through the tenons and the grooves.

In the segment assembled ship collision prevention device, preferably, the tenon is provided with a vertical through hole, the inner wall of the groove is also provided with a vertical through hole which corresponds to the tenon in position and penetrates through the end face of the ship collision prevention device unit, and the vertical through hole is internally provided with a connecting shaft (such as an anti-corrosion pin shaft).

In the above-described segmental assembly type ship collision prevention device, preferably, the top surface of the end portion of the ship collision prevention device unit is provided with a connection lug, and the adjacent ship collision prevention device units are connected into a whole through the connection lug and a connection bolt.

The utility model discloses a prevent that ship hits device unit is protective layer-biography power layer-energy dissipation layer in proper order by each layer material of outside to inboard and function according to the spatial position relation, forms function gradient combination energy dissipation component. The outermost panel (protective outer panel) is a protective layer and can be made of materials such as silicon rubber and FRP (fiber reinforced plastics) which are good in durability and relatively small in component rigidity, the whole anti-collision device is sealed to achieve the effects of corrosion prevention and durability improvement, more importantly, the contact rigidity is low, the peak force of a ship in collision contact can be greatly reduced, and the structural integrity of the ship collision prevention unit and the transmission of the collision force to the inside of the box-type structure are guaranteed. The intermediate sandwich plate (UHPC force-transferring sandwich plate) is a force-transferring plate, and is made into UHPC (ultra-high performance concrete) with high strength, good toughness and good impact resistance, and in the collision process, the superior impact resistance is utilized to disperse and transfer the impact action to more energy-consuming inner boxes, so that the panel is not damaged prematurely during collision, and the energy-consuming capability of a ship collision prevention device unit is fully exerted.

In the utility model, according to the actual collision between the ship and the anti-collision device, the contact area between the bow and the outer panel of the anti-collision device is small, so that the panel is greatly deformed when being collided, and the inner side of the panel is damaged due to large tensile stress; the part far away from the hit point can generate a reverse bending point, and the outer side of the panel is pulled in some areas, so that the part far away from the hit point has the risk of cracking, failure and damage of the panel in the process of impact. And the utility model discloses a function gradient compoboard, through setting up the connecting piece (if first, two predetermine the connecting piece) make three-layer board (protection outer panel, UHPC passes power sandwich panel and metal construction board) form holistic integrated configuration, so, near the inboard tensile stress that produces because of the invagination deformation can be born by the metal construction board of compoboard by hitting some, and the load of the face plate outside tension part can be born because combined material such as FRP in the outside jointly, just because the effect of combined material panels such as metal construction board and outside FRP, make interbedded UHPC pass power sandwich panel's intensity and toughness obtain further improvement, it is not fragile more, in order to transmit more impact to the power consumption inner box, the wholeness ability of function gradient compoboard is better. And because the energy dissipation inner box also comprises frameworks such as metal construction plates and pipes and the energy dissipation materials filled in the frameworks, the compression deformation of the bow can be further hindered, the anti-impact capability of the outer side panel is further enhanced under the tensile bearing capacity provided by the metal construction plates and the protection of the energy dissipation members, and more energy dissipation members can participate in the deformation. Therefore, the function gradient combination panel is not easy to be damaged due to the effect of the energy consumption inner box, more energy consumption components can participate in energy consumption when the combination panel is difficult to be damaged, more energy consumption components participate in work to further protect the function gradient combination panel, the function gradient combination panel and the energy consumption interact and cooperatively consume energy, and the overall effect of the device is further exerted; generally speaking, the utility model discloses the cooperative work of well protect function gradient combination panel and inside power consumption inner box has improved the shock resistance of whole device, and whole device homework jointly and can exert the power consumption effect fully.

The utility model discloses a prevent that ship hits device unit is by outer to inwards setting gradually as protective layer-power transmission layer-energy dissipation layer according to the function difference, specifically can set to FRP layer-UHPC layer-steel case energy dissipation layer or silastic layer-UHPC layer-steel case energy dissipation layer. When the FRP layer, the UHPC layer and the steel box energy dissipation layer are adopted, the construction method comprises the following steps: respectively prefabricating an FRP panel and a steel box, wherein the steel box can be made into a groove type with an opening at the upper part, internally installing a metal energy dissipation component and filling energy dissipation foam, wherein a first preset connecting piece and a second preset connecting piece are required to be preset at the inner side of the FRP panel and the outer side of the steel box, temporarily fixing after the prefabrication of the FRP panel and the steel box is completed, pouring a UHPC layer by utilizing the FRP panel and the steel box as an outer side template and an inner side template respectively, not arranging common reinforcing steel bars in the UHPC layer, and finally constructing a top plate by adopting the same method so that the groove type structure forms a sealed box chamber structure. When the silicone rubber layer-UHPC layer-steel box energy dissipation layer is adopted, the construction method is to prefabricate the steel box, the steel box can be made into a groove shape with an opening at the upper part, a metal energy dissipation component is installed inside the steel box, energy dissipation foam is filled in the steel box, wherein a second preset connecting piece connected with the UHPC layer is required to be preset on the outer side of the steel box, an outer template and horizontal and vertical common steel bars in the UHPC layer are additionally arranged by taking the steel box as an inner template, the UHPC layer is poured, after the UHPC layer is formed, the outer template is detached, a silicone rubber plate is closely attached to the outer side of the UHPC layer, and finally, the same method is adopted to construct a top plate, so that the groove.

The utility model discloses a prevent that ship hits device unit because protection outer panel (like the FRP panel) has certain structural strength, interbedded UHPC biography power sandwich panel can not set up level and vertical reinforcing bar, reduction construction degree of difficulty that can be very big, and UHPC's the quality of pouring also can become more reliable simultaneously, can not lead to pouring the quality not good because of densely covered reinforcing bar.

The utility model discloses among the ship collision device is prevented to festival section pin-connected panel, prevent that the high accessible of ship collision device is specifically definite behind the collision circumstances that device weight, the analysis of ship type characteristics may take place.

Compared with the prior art, the utility model has the advantages of:

1. the utility model discloses a prevent that ship hits functional gradient compoboard that device unit adopted has advantages such as the security is good, intensity is high, shock resistance is superior, can improve the intensity of the biography power component in the power consumption inner box outside greatly, and full play passes the power transmission effect of power sandwich panel, avoids passing power sandwich panel and takes place local serious destruction at the collision initial stage for more inside power consumption components participate in the power consumption, have greatly improved and prevented the power consumption efficiency that the ship hit the device.

2. The utility model discloses a UHPC passes power sandwich panel has good durability, can guarantee the working property of anticollision facility in the bridge full life, reduces the maintenance cost.

3. The utility model discloses because the existence of protection exterior panel (like silicon rubber or FRP), threat such as conflagration that leads to when can avoiding boats and ships striking has improved the utility model discloses the security of device.

4. The utility model discloses a protection exterior panel (like silicon rubber or FRP) has extremely superior durability, and the airtight box room that forms can guarantee not corroded of inside metal component etc. has guaranteed the durability of power consumption part to further improve the device's durability and reliability.

5. The utility model discloses an energy consumption inner box can greatly improve the energy consumption effect of preventing the ship from hitting the device, has strengthened the crashproof ability of bridge.

6. The utility model discloses a protection outer panel, UHPC pass power sandwich panel and energy consumption inner box connect and form combination power consumption structure, above-mentioned each layer mutually supports, synergism, and it is clear and definite to pass the power route, improvement energy consumption efficiency and power consumption ability that can be very big.

7. The utility model discloses a prevent that ship hits device can be formed by a plurality of ship of preventing hits device unit combination, and whole device is divided into parts, and the segmentation is prefabricated, floating transportation to appointed position after through simple connection can, the preparation and the construction process of whole device are ripe, can guarantee the construction quality of each segmentation.

Generally speaking, the utility model discloses a ship device is hit in festival section pin-connected panel has that the construction is simple and convenient, the power consumption is efficient, the power consumption ability is strong, the power consumption mode is stable, pass that the power route is clear and definite, the durability is good, advantage such as security height, has very big use value and good economic benefits, has wide application prospect in deep water bridge anticollision field.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

Fig. 1 is a schematic structural view (a structural internal sectional plan view) of a ship collision preventing device in embodiment 1.

Fig. 2 is a schematic structural view (structural external plan view) of the ship collision preventing device in embodiment 1.

Fig. 3 is a schematic structural view of the ship collision preventing device in embodiment 1 (the left side is a vertical sectional view of the inside of the structure, and the right side is a vertical sectional view of the joint).

Fig. 4 is a schematic structural view of a D-type rubber fender in example 1.

Fig. 5 is a schematic structural view (a structural internal sectional plan view) of the ship collision preventing device in embodiment 2.

Fig. 6 is a schematic structural view (structural external plan view) of the ship collision preventing device in embodiment 2.

Fig. 7 is a schematic structural view of the ship collision preventing device in embodiment 2 (the left side is a vertical sectional view of the inside of the structure, and the right side is a vertical sectional view of the joint).

Fig. 8 is a schematic structural view (a structural internal sectional plan view) of a ship collision preventing device in embodiment 3.

Fig. 9 is a schematic structural view (structural external plan view) of a ship collision preventing device in embodiment 3.

Fig. 10 is a schematic structural view of a ship collision preventing device in embodiment 3.

Illustration of the drawings:

1. a metal build plate; 2. a second preset connecting piece; 3. a cell structure; 4. a UHPC force transmitting sandwich panel; 5. energy dissipation materials; 6. a tenon; 7. a groove; 8. d-type rubber fender; 81. hollow D-type outer rubber; 82. a hollow D-shaped inner steel member; 9. connecting lugs; 10. vertical reinforcing steel bars; 11. horizontal reinforcing steel bars; 12. a bridge pier; 13. protecting the outer panel; 15. a stainless steel band; 16. an expansion bolt; 19. a connecting shaft; 20. and connecting the bolts.

Detailed Description

To facilitate understanding of the present invention, the present invention will be described more fully and specifically with reference to the accompanying drawings and preferred embodiments, but the scope of the present invention is not limited to the specific embodiments described below.

Unless otherwise defined, all terms of art used hereinafter have the same meaning as commonly understood by one of ordinary skill in the art. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the scope of the present invention.

Unless otherwise specifically stated, various raw materials, reagents, instruments, equipment and the like used in the present invention are commercially available or can be prepared by an existing method.

Example 1:

as shown in fig. 1-3, the ship collision prevention device unit of the segmental assembly type of the present embodiment is a sealed box structure, the box structure includes a protective outer panel 13 disposed on an outer layer of the box structure and an energy dissipation inner box disposed inside the box structure, and a UHPC force transmission sandwich plate 4 is disposed between the protective outer panel 13 and the energy dissipation inner box.

In this embodiment, the protective outer panel 13 is an FRP panel. The energy dissipation inner box comprises a closed inner cavity which is mainly formed by surrounding metal construction plates 1, and a metal energy dissipation member is arranged in the closed inner cavity. The metal energy dissipation component comprises a plurality of cell structures 3, each cell structure 3 is a hexagonal pipe, a circular pipe or a honeycomb-shaped metal component formed by splicing and combining metal corrugated plates, energy dissipation materials 5 are filled in the cell structures 3, and the length directions of the cell structures 3 are perpendicular to the ship collision direction.

In the embodiment, the UHPC force transfer sandwich plate 4 is cast in situ by taking the protective outer panel 13 as an outer template and taking the energy consumption inner box as an inner template; the inner wall of the protective outer panel 13 is provided with a first preset connecting piece (such as a stud) for connecting the protective outer panel 13 and the UHPC force transmission sandwich plate 4 into a whole, and the outer wall of the energy consumption inner box is provided with a second preset connecting piece 2 (such as a stud) for connecting the energy consumption inner box and the UHPC force transmission sandwich plate 4 into a whole.

The FRP panel of the ship collision prevention device unit in the embodiment is a composite panel formed by winding, molding or pultrusion and other forming processes of reinforced fiber materials (including glass fibers, carbon fibers, aramid fibers and the like) and base materials; the functional anti-collision material formed by the FRP-UHPC-steel box has extremely excellent impact resistance, so that more internal components can participate in energy consumption as much as possible.

The embodiment also provides a segmental assembling type ship collision prevention device which comprises a plurality of ship collision prevention device units, wherein the ship collision prevention device units are connected into a whole end to end and are arranged around the bridge pier 12. The ship collision prevention device in the embodiment can be prefabricated by 4 sections, the actually required prefabricated sections can be divided according to the actual size of the pier 12 and the actual specification of the required anti-collision device, and the prefabricated components can be transported to a specified position through floating as the prefabricated components serve as closed box chambers and then connected through the preset connecting pieces.

As shown in fig. 4, in the present embodiment, a plurality of D-shaped rubber fenders 8 are provided on the protective outer panel 13 (on the side close to the pier 12), the D-shaped rubber fenders 8 include a hollow D-shaped outer layer rubber 81, and a hollow D-shaped inner layer steel member 82 is provided in the inner cavity of the hollow D-shaped outer layer rubber 81. The D-shaped rubber fender 8 may be installed (horizontally installed or vertically installed) according to the shape of an actual bridge pier or an actual collision prevention device.

As shown in fig. 3, in this embodiment, at least one tenon 6 is provided on one of the adjacent end surfaces of the adjacent ship collision preventing device units, at least one groove 7 which is matched with the tenon 6 is provided on the other end surface, and the adjacent ship collision preventing device units are integrally connected by the tenon 6 and the groove 7. The tenon 6 is provided with a vertical through hole, the inner wall of the groove 7 is also provided with a vertical through hole which corresponds to the position of the tenon 6 and penetrates through the end surface of the ship collision prevention device unit, and the vertical through hole is internally provided with a connecting shaft 19.

In this embodiment, the top surface of the end of the ship collision preventing device unit is provided with a connecting lug 9, and the adjacent ship collision preventing device units are connected into a whole through the connecting lugs 9 and the connecting bolts 20.

The construction method of the segment-assembled ship collision prevention device comprises the following steps:

(1) prefabricating a segment: prefabricating a protective layer FRP panel, wherein a first preset connecting piece is required to be preset at the inner side of the FRP panel; prefabricating an internal steel box, wherein the internal steel box is prefabricated into a groove shape with an opening at the upper end, and a second preset connecting piece is preset outside the steel box;

(2) prefabricating a segment: a cellular structure 3 is arranged in the groove-shaped steel box, the cellular structure 3 can provide internal support for the groove-shaped structure of the internal steel box, and the cellular structure 3 is filled with foam energy dissipation materials 5; welding the groove-shaped top plate after the completion to enable the inner steel box to become a closed box chamber;

(3) prefabricating a segment: pouring ultra-high performance concrete by taking the temporarily fixed internal steel box and the FRP panel as an internal and external template, installing a top plate FRP panel after UHPC molding, and sealing and wrapping the whole section of the anti-collision device;

(4) segment assembling: after prefabrication of each prefabricated section is completed, installing a D-shaped rubber fender 8, and carrying out floating transportation on each section to a specified place for section assembly;

(5) segment assembling: the tenon 6, the groove 7, the connecting shaft 19, the connecting lug 9 and the connecting bolt 20 are used for connecting the adjacent sections into a whole;

(6) the segments are connected in sequence to form the integral ship collision prevention device of the pier 12 in the embodiment.

Example 2:

as shown in fig. 4-7, in the segment assembled ship collision prevention device unit of this embodiment, the ship collision prevention device unit is a sealed box structure, the box structure includes a protective outer panel 13 disposed on an outer layer of the box structure and an energy dissipation inner box disposed inside the box structure, and a UHPC force transmission sandwich plate 4 is disposed between the protective outer panel 13 and the energy dissipation inner box.

In this embodiment, the protective outer panel 13 is a silicone rubber panel. The energy dissipation inner box comprises a closed inner cavity which is mainly formed by surrounding metal construction plates 1, and a metal energy dissipation member is arranged in the closed inner cavity. The metal energy dissipation component comprises a plurality of cell structures 3, each cell structure 3 is a hexagonal pipe, a circular pipe or a honeycomb-shaped metal component formed by splicing and combining metal corrugated plates, energy dissipation materials 5 are filled in the cell structures 3, and the length directions of the cell structures 3 are perpendicular to the ship collision direction.

In the embodiment, the UHPC force transfer sandwich plate 4 is cast in situ by using an additional outer template and an energy consumption inner box as an inner template; the outer wall of the energy-consuming inner box is provided with a second preset connecting piece 2 (such as a stud) for connecting the energy-consuming inner box and the UHPC force-transmission sandwich plate 4 into a whole. Vertical steel bars 10 and horizontal steel bars 11 are arranged in the UHPC force transmission sandwich plate 4; the collision resistance of the force transmission component can be further improved by configuring the vertical steel bars 10 and the horizontal steel bars 11, so that more internal components can participate in energy consumption.

The silicon rubber panel of the ship collision prevention device unit in the embodiment forms a closed box chamber by wrapping the whole device, so that the durability of the device is ensured, the contact rigidity of collision can be reduced by the silicon rubber, and in addition, the hidden danger of fire or explosion caused by sparks generated by collision of a transported flammable and explosive ship can be prevented by utilizing the smaller rigidity and inertia of the silicon rubber.

The embodiment also provides a segmental assembling type ship collision prevention device which comprises a plurality of ship collision prevention device units, wherein the ship collision prevention device units are connected into a whole end to end and are arranged around the bridge pier 12. The ship collision prevention device in the embodiment can be prefabricated by 2 sections, the actually required prefabricated sections can be divided according to the actual size of the pier 12 and the actual specification of the required anti-collision device, and the prefabricated components can be transported to a specified position through floating as the prefabricated components serve as closed box chambers and then connected through the preset connecting pieces.

As shown in fig. 4, in the present embodiment, a plurality of D-shaped rubber fenders 8 are provided on the protective outer panel 13 (on the side close to the pier 12 and on the side facing the ship collision direction), the D-shaped rubber fenders 8 include a hollow D-shaped outer layer rubber 81, and a hollow D-shaped inner layer steel member 82 is provided in an inner cavity of the hollow D-shaped outer layer rubber 81. The D-shaped rubber fender 8 may be installed (horizontally installed or vertically installed) according to the shape of an actual bridge pier or an actual collision prevention device.

(1) prefabricating a segment: prefabricating an internal steel box, wherein the internal steel box is prefabricated into a groove type with an opening at the upper end, a cell structure 3 is arranged in the groove type steel box, and the cell structure 3 can provide internal support for the groove type structure of the internal steel box; a second preset connecting piece is preset on the outer side of the steel box; installing vertical steel bars 10 and horizontal steel bars 11 required by the UHPC force-transferring sandwich plate 4, and arranging an outer side template; pouring the ultra-high performance concrete, and performing steam curing; the cell structure 3 is filled with a light foam energy dissipation material 5;

(2) prefabricating a segment: welding the groove-shaped top plate after the completion to enable the inner steel box to become a closed box chamber;

(3) prefabricating a segment: a silicone rubber panel clinging to the outer side of the whole device;

Example 3:

as shown in fig. 8-10, the ship collision prevention device unit of the segmental assembly type of the present embodiment is a sealed box structure, the box structure includes a protective outer panel 13 disposed on the outer layer of the box structure and an energy dissipation inner box disposed inside the box structure, and a UHPC force transmission sandwich plate 4 is disposed between the protective outer panel 13 and the energy dissipation inner box.

The embodiment also provides a segmental assembling type ship collision prevention device which comprises a plurality of ship collision prevention device units, wherein the ship collision prevention device units are connected into a whole end to end and are arranged around the bridge pier 12. The ship collision prevention device in the embodiment can be divided into two layers, each layer is prefabricated with 3 sections, the actually required prefabricated sections can be divided according to the size of an actual pier 12 and the actual specification of the required collision prevention device, the prefabricated members can be transported to a specified position through floating as the prefabricated members serve as closed box chambers, and the sections are fixed on the pier 12 respectively by using stainless steel belts 15 and expansion bolts 16. The actual process of presetting the fixed connection may be arranged as desired.

(1) prefabricating a segment: prefabricating a protective layer FRP pipe, wherein a first preset connecting piece is required to be preset inside the FRP pipe; prefabricating an inner steel box, wherein the inner steel box is prefabricated into a tubular shape with two open ends, and a second preset connecting piece is preset outside the steel box;

(2) prefabricating a segment: the cell structure 3 is arranged in the groove-shaped steel box, and the cell structure 3 can provide internal support for the groove-shaped structure of the internal steel box;

(3) prefabricating a segment: pouring ultrahigh-performance concrete by taking the temporarily fixed internal steel box and the FRP panel as an internal and external template, and performing steam curing;

(4) energy dissipation materials 5 (such as polyurethane foam) are filled in the cell structure 3, and cover plates at two ends of the box pipeline are welded, so that the energy dissipation components form a closed component; installing the FRP panel, so that the FRP panel can completely wrap the whole device;

(5) segment assembling: after prefabrication of each prefabricated segment is completed, each segment is transported to a designated position in a floating mode, and each segment is fixed through a stainless steel belt 15 and a stainless steel expansion bolt 16 required for fixing, so that the integral ship collision prevention device for the pier 12 in the embodiment is formed.

Claims

1. The section assembled ship collision prevention device unit is characterized by being of a box-type structure, the box-type structure comprises a protective outer panel (13) arranged on the outer layer of the box-type structure and an energy consumption inner box arranged inside the box-type structure, and a UHPC (ultra high performance polycarbonate) force transmission sandwich plate (4) is arranged between the protective outer panel (13) and the energy consumption inner box.

2. The segmental assembled ship crash unit according to claim 1, characterized in that the protective outer panel (13) is a FRP panel or a silicone rubber panel.

3. The segmental assembled ship collision preventer unit according to claim 1, characterized in that the energy dissipating inner tank comprises a closed inner cavity mainly enclosed by metal construction plates (1), in which closed inner cavity metal energy dissipating elements are arranged.

4. The segmental assembled ship collision prevention device unit according to claim 3, characterized in that the metal energy dissipation member comprises a plurality of cell structures (3), the cell structures (3) are hexagonal tubes, circular tubes or metal members assembled by splicing metal corrugated plates into a honeycomb shape, the cell structures (3) are filled with energy dissipation materials (5), and the length direction of the cell structures (3) is perpendicular to the ship collision direction.

5. The segment-assembled ship collision prevention device unit according to any one of claims 1 to 4, wherein the UHPC force-transmitting sandwich plate (4) is cast in situ by taking a protective outer panel (13) as an outer template and an energy-consuming inner box as an inner template; the inner wall of the outer protective panel (13) is provided with a first preset connecting piece for connecting the outer protective panel (13) and the UHPC force transmission sandwich plate (4) into a whole, and the outer wall of the energy consumption inner box is provided with a second preset connecting piece (2) for connecting the energy consumption inner box and the UHPC force transmission sandwich plate (4) into a whole.

6. A segmental assembled ship collision preventing device, which is characterized by comprising a plurality of ship collision preventing device units as claimed in any one of claims 1 to 5, wherein the ship collision preventing device units are connected into a whole end to end and arranged around a pier (12) or a bearing platform, or the ship collision preventing device units are distributed around the pier (12) or the bearing platform at intervals.

7. The segmental assembled ship collision prevention device according to claim 6, wherein a plurality of D-shaped rubber fenders (8) are arranged on the protective outer panel (13), each D-shaped rubber fender (8) comprises a hollow D-shaped outer rubber (81), and a hollow D-shaped inner steel member (82) is arranged in an inner cavity of each hollow D-shaped outer rubber (81).

8. The segmental assembled ship collision prevention device according to claim 6, wherein at least one tenon (6) is arranged on one end surface of the adjacent end surfaces of the adjacent ship collision prevention device units, at least one groove (7) matched with the tenon (6) is arranged on the other end surface, and the adjacent ship collision prevention device units are connected into a whole through the tenon (6) and the groove (7).

9. The segmental assembled ship collision prevention device according to claim 8, wherein vertical through holes are formed in the tenons (6), vertical through holes corresponding to the positions of the tenons (6) and penetrating through the end faces of the ship collision prevention device units are also formed in the inner walls of the grooves (7), and connecting shafts (19) are arranged in the vertical through holes.

10. The segmental assembled ship collision prevention device according to any one of claims 6 to 8, wherein the top surfaces of the ends of the ship collision prevention device units are provided with connecting lugs (9), and adjacent ship collision prevention device units are integrally connected through the connecting lugs (9) and connecting bolts (20).