CN117536086A - Bridge buffer stop that possesses stress wave dredging function - Google Patents
Bridge buffer stop that possesses stress wave dredging function Download PDFInfo
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- CN117536086A CN117536086A CN202311825645.4A CN202311825645A CN117536086A CN 117536086 A CN117536086 A CN 117536086A CN 202311825645 A CN202311825645 A CN 202311825645A CN 117536086 A CN117536086 A CN 117536086A
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- collision
- ring
- stress wave
- bridge
- circle
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- 229920003225 polyurethane elastomer Polymers 0.000 claims abstract description 5
- 230000003014 reinforcing effect Effects 0.000 claims description 19
- 229910000831 Steel Inorganic materials 0.000 claims description 11
- 239000010959 steel Substances 0.000 claims description 11
- 239000000463 material Substances 0.000 claims description 10
- 239000011248 coating agent Substances 0.000 claims description 7
- 238000000576 coating method Methods 0.000 claims description 7
- 239000004417 polycarbonate Substances 0.000 claims description 7
- 229920000515 polycarbonate Polymers 0.000 claims description 7
- PNEYBMLMFCGWSK-UHFFFAOYSA-N Alumina Chemical compound [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 claims description 3
- 229920001971 elastomer Polymers 0.000 claims description 3
- 229920002635 polyurethane Polymers 0.000 claims description 3
- 239000004814 polyurethane Substances 0.000 claims description 3
- 238000007789 sealing Methods 0.000 claims description 3
- 230000006378 damage Effects 0.000 abstract description 6
- 239000006185 dispersion Substances 0.000 abstract description 3
- 230000000694 effects Effects 0.000 abstract description 3
- 210000004027 cell Anatomy 0.000 description 20
- 238000000034 method Methods 0.000 description 6
- 230000009471 action Effects 0.000 description 5
- 238000013461 design Methods 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 230000001681 protective effect Effects 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000005489 elastic deformation Effects 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 229910000746 Structural steel Inorganic materials 0.000 description 1
- 238000005299 abrasion Methods 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 210000000988 bone and bone Anatomy 0.000 description 1
- 230000003139 buffering effect Effects 0.000 description 1
- 210000002421 cell wall Anatomy 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 239000013013 elastic material Substances 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012856 packing Methods 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 230000021715 photosynthesis, light harvesting Effects 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 230000003313 weakening effect Effects 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D19/00—Structural or constructional details of bridges
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
- F16F15/00—Suppression of vibrations in systems; Means or arrangements for avoiding or reducing out-of-balance forces, e.g. due to motion
- F16F15/02—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems
- F16F15/04—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems using elastic means
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Physics & Mathematics (AREA)
- Acoustics & Sound (AREA)
- Aviation & Aerospace Engineering (AREA)
- Mechanical Engineering (AREA)
- Bridges Or Land Bridges (AREA)
Abstract
The invention relates to the technical field of bridge engineering, in particular to a bridge anti-collision device with a stress wave dredging function, which comprises an elastic protection ring tightly attached to the periphery of a bridge pier, wherein a multi-layer anti-collision ring structure is arranged on the outer side of the elastic protection ring. This bridge buffer stop that possesses stress wave dredging function through multilayer crashproof circle formula structure, makes wholly possess crashproof energy-absorbing cushioning effect, and the elasticity protection circle can reduce the impact that buffer stop caused to the pier, can reduce the loss of annular structure self again, extension buffer stop's life, and the flexible board that the elasticity protection circle was covered outward can further conduct the stress wave that is dredged out by five-mode lattice annular structure to polyurethane elastomer when having good crashworthiness, reduce structural weight, multilayer crashproof circle formula structure forms a whole, when bumping, can be better let the even dispersion of stress that the impact point received, reduce the destruction inefficacy of local impact point structure, improve the crashworthiness of structure.
Description
Technical Field
The invention relates to the technical field of bridge engineering, in particular to a bridge anti-collision device with a stress wave dredging function.
Background
With the vigorous development of the economy in China, the number of sailing ships is gradually increased, and accidents such as ship collision are also gradually increased. Many bridges in China experience a bridge collision accident. Therefore, research on a pier ship collision prevention device is significant and necessary.
At present, most of the main collision avoidance devices in China are elastic deformation collision avoidance facilities and crushing deformation collision avoidance facilities. The basic principle is that the bridge is protected by absorbing energy through elastic material deformation generated by the contact of the anti-collision device and the ship body, the damage of bone materials such as steel plates and the like, thereby playing a role of buffering. The steel box type anti-collision device is commonly used, the energy dissipation facility utilizes plastic deformation and damage energy consumption of steel, when a ship impacts the steel box type anti-collision device, an anti-collision structural steel plate is greatly deformed, partial collision energy is absorbed, the contact time is prolonged, and the impact peak value is reduced. However, in the conventional elastic deformation collision avoidance facilities and crushing deformation collision avoidance facilities, the collision energy of the ship is mainly consumed by the deformation energy absorption of materials and structures, so that the collision avoidance facilities are required to be sufficiently deformed to achieve the purpose of completely consuming the collision energy of the ship, and the collision avoidance facilities and the ship can be greatly damaged although the bridge pier can be well protected after a collision accident occurs.
Disclosure of Invention
In order to achieve the above purpose, the present invention provides the following technical solutions: the utility model provides a bridge buffer stop that possesses stress wave and dredges function, includes the elastic protection circle of hugging closely with the pier periphery, and the outside of elastic protection circle is provided with multilayer buffer stop formula structure, and multilayer buffer stop formula structure is including setting up at the peripheral two flexible boards of elastic protection circle, is connected with inlayer buffer stop between two flexible boards, and the outside of the flexible board in the outside is fixed with outer buffer stop, the major structure of inlayer buffer stop is five-mode lattice annular structure, and five-mode lattice annular structure is five-mode lattice annular ring.
Further, the main body structure of the five-mode lattice annular structure is made of polycarbonate materials, the flexible plate is made of polyurethane elastomer, the outer anti-collision ring is of a steel structure, and the elastic protection ring is made of polyurethane protection ring.
Further, the five-mode lattice annular structure is formed by closely arranging a plurality of cell structures, and the cell structures are honeycomb structure cells.
Further, the cell structure of the five-mode lattice annular structure is internally filled with a reinforcing member.
Further, the reinforcing member is a reinforcing rod, and an elastic coating body is coated on the outer side of the reinforcing rod.
Further, the reinforcing rod is alumina ceramic, and the elastic coating body is rubber.
Further, the deck is welded between the tops of the outer anti-collision ring, the two flexible plates and the inner anti-collision ring, the bottom plate is welded between the bottoms of the outer anti-collision ring, the two flexible plates, the inner anti-collision ring, and the deck and the bottom plate form a hollow sealing structure.
Compared with the prior art, the technical scheme of the application has the following beneficial effects:
this bridge buffer stop that possesses stress wave dredging function through multilayer crashproof circle formula structure, makes wholly possess crashproof energy-absorbing cushioning effect, and the elasticity protection circle can reduce the impact that buffer stop caused to the pier, can reduce the loss of annular structure self again, extension buffer stop's life, and the flexible board that the elasticity protection circle was covered outward can further conduct the stress wave that is dredged out by five-mode lattice annular structure to polyurethane elastomer when having good crashworthiness, reduce structural weight, multilayer crashproof circle formula structure forms a whole, when bumping, can be better let the even dispersion of stress that the impact point received, reduce the destruction inefficacy of local impact point structure, improve the crashworthiness of structure.
Drawings
FIG. 1 is a schematic diagram of the structure of the present invention;
FIG. 2 is a top view of the structure of the present invention;
FIG. 3 is a diagram of a cell structure of a five-mode lattice ring structure according to the present invention.
In the figure: 1. an elastic protective ring; 2. a flexible board; 3. a five-mode lattice ring structure; 4. an outer layer anti-collision ring; 5. an inner layer anti-collision ring; 6. a deck; 7. a bottom plate; 8. a reinforcing rod; 9. an elastic coating.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
Referring to fig. 1-3, a bridge anti-collision device with stress wave guiding function in this embodiment includes an elastic protection ring 1 tightly attached to the periphery of a bridge pier, wherein a multi-layer anti-collision ring structure is provided on the outer side of the elastic protection ring 1, the multi-layer anti-collision ring structure includes two flexible plates 2 disposed on the periphery of the elastic protection ring 1, an innermost flexible plate 2 is connected with the elastic protection ring 1, an inner anti-collision ring 5 is connected between the two flexible plates 2, an outer anti-collision ring 4 is fixed on the outer side of the outermost flexible plate 2, a main body structure of the inner anti-collision ring 5 is a five-mode lattice annular structure 3, and the five-mode lattice annular structure 3 is a five-mode lattice annular ring.
In the structure, the elastic protection ring covers the periphery of the bridge pier, is used for reducing the damage of the anti-collision device to the bridge pier and the abrasion of the anti-collision device, weakening the damage of the bridge pier due to the collision of the ship, the five-mode lattice annular structure is used for guiding the impact stress wave along the tangential direction of the annular ring when the collision accident of the ship occurs, thereby lightening the collision degree of the ship to the bridge pier, the outer anti-collision ring is mainly used for ensuring the structural strength,
the main structure of the five-mode lattice annular structure 3 is made of polycarbonate, the elastic protection ring 1 is a polyurethane protection ring, the flexible plate 2 is a polyurethane elastomer, and the outer anti-collision ring 4 is of a steel structure. The polycarbonate material has good impact resistance, has certain strength when the ship is crashed and deformed, and prolongs the service life of the device. And compared with steel materials, the polycarbonate material still has good protective performance, the material is lighter in weight and better in ductility, the impact of ships on piers can be well lightened, and the five-mode lattice annular structure adopts the polycarbonate material, has flexibility and very reliable plasticity, so that the five-mode lattice annular structure can be actively adapted to piers in various forms, and can be shaped to a certain extent on site. Compared with the traditional production device, the difficulty in the design production process is greatly reduced, the production cost is greatly reduced, the anti-collision ring can be widely used, and the outer anti-collision ring is mainly made of steel plates and is used for guaranteeing the structural strength.
In addition, the deck 6 is welded between the tops of the outer anti-collision ring 4, the two flexible plates 2 and the inner anti-collision ring 5, the bottom plate 7 is welded between the bottoms of the outer anti-collision ring 4, the two flexible plates 2, the inner anti-collision ring 5, the deck 6 and the bottom plate 7 form a hollow sealing structure. The inner layer anti-collision ring, the flexible plate, the outer layer anti-collision ring, the deck and the bottom plate are connected in a welded mode, so that the anti-collision device is integrated, the anti-collision device is beneficial to resisting collision force, a hollow structure can be formed, and the anti-collision device can float on the water surface.
Meanwhile, the five-mode lattice annular structure 3 is formed by closely arranging a plurality of cell structures, the cell structures are honeycomb structure cells, the cell structures are through holes perpendicular to the direction of the central line of the bridge pier, adjacent cell structures are closely arranged, and the cell shapes are regular hexagons. The five-mode lattice annular structure adopts a cell structure which can be specially designed to dredge the impact stress wave along the tangential direction of the circular ring. The structure ensures that the hexagonal cell structure becomes an impact stealth cloak shell structure by adjusting the inner radius, the outer radius, the cell wall thickness and the ring height of the ring, reduces the influence of impact action on the bridge pier, and enables impact stress waves to be diffracted from the periphery of the bridge pier. The cell design meets the tangential rigidity of an ideal impact stealth cloak, and gives consideration to the radial rigidity and the coupling rigidity of two main directions of the ideal impact stealth cloak. By the design, the propagation path of the impact stress wave in the five-mode lattice annular structure is different from that of a conventional annular structure, and the impact action received by the impact surface of the inner ring can be effectively reduced.
And the inside of the cell structure of the five-mode lattice annular structure 3 is filled with a reinforcing member, the reinforcing member is a reinforcing rod 8, the outer side of the reinforcing rod 8 is covered with an elastic coating body 9, the reinforcing rod 8 is alumina ceramic, and the elastic coating body 9 is rubber. The rigidity anisotropy is enhanced by fixedly connecting the reinforcing rods in the cell cavities, the rigidity anisotropy is enhanced in the equivalent mechanical property and the dispersion characteristic of the cells, the fluid characteristic of the five-mode cells is enhanced, the normal vector bifurcation angle of the improved cells is increased, and more energy flows along the direction of the reinforcing rods. The strain peak value of the inner ring impact surface is obviously reduced, and the protective performance parameter is also improved to a certain extent.
The working principle of the embodiment is as follows:
through inlayer buffer stop, the flexible sheet, outer buffer stop, deck and bottom plate welded connection, make buffer stop form a whole, both be favorable to resisting the impact, can form hollow structure again, make buffer stop can float in the surface of water, when the boats and ships pass through various unexpected factor striking pier, at first with outer buffer stop's steel sheet contact, the steel sheet transmits the impact to the five-mode lattice annular structure of inlayer buffer stop, owing to the existence of this five-mode lattice annular structure special design's cell structure, the reinforcing member of inside packing, and the characteristic of self polycarbonate material, can convert rigid collision into elastoplastic collision, effectively reduce the impact effect that the inner ring face of meeting received, and dredge the impact stress wave along ring tangential, the security is protected to the pier.
It is noted that relational terms such as first and second, and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one … …" does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises the element.
Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (7)
1. Bridge buffer stop that possesses stress wave and dredges function, its characterized in that: including elastic protection circle (1) hugging closely with the pier periphery, the outside of elastic protection circle (1) is provided with multilayer anticollision circle structure, and multilayer anticollision circle structure is including setting up two flexible board (2) at elastic protection circle (1) outlying, is connected with inlayer anticollision circle (5) between two flexible board (2), and the outside of outside flexible board (2) is fixed with outer anticollision circle (4), the major structure of inlayer anticollision circle (5) is five-mode lattice annular structure (3), and five-mode lattice annular structure (3) are five-mode lattice annular ring.
2. The bridge anti-collision device with a stress wave dredging function according to claim 1, wherein: the main body structure of the five-mode lattice annular structure (3) is made of polycarbonate materials, the flexible plate (2) is made of polyurethane elastomer, the outer anti-collision ring (4) is of a steel structure, and the elastic protection ring (1) is made of polyurethane protection ring.
3. The bridge anti-collision device with a stress wave dredging function according to claim 2, wherein: the five-mode lattice annular structure (3) is formed by closely arranging a plurality of cell structures, and the cell structures are honeycomb-structure cells.
4. A bridge anti-collision device with stress wave guiding function according to claim 3, characterized in that: the cell structure of the five-mode lattice annular structure (3) is internally filled with a reinforcing member.
5. The bridge anti-collision device with a stress wave dredging function according to claim 4, wherein: the reinforcing member is a reinforcing rod (8), and an elastic coating body (9) is coated on the outer side of the reinforcing rod (8).
6. The bridge anti-collision device with a stress wave dredging function according to claim 5, wherein: the reinforcing rod (8) is made of alumina ceramic, and the elastic coating body (9) is made of rubber.
7. The bridge anti-collision device with a stress wave dredging function according to claim 1, wherein: the anti-collision device is characterized in that a deck (6) is welded between the tops of the outer anti-collision ring (4), the two flexible plates (2) and the inner anti-collision ring (5), a bottom plate (7) is welded between the bottoms of the outer anti-collision ring, and a hollow sealing structure is formed among the outer anti-collision ring (4), the two flexible plates (2), the inner anti-collision ring (5), the deck (6) and the bottom plate (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311825645.4A CN117536086A (en) | 2023-12-28 | 2023-12-28 | Bridge buffer stop that possesses stress wave dredging function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311825645.4A CN117536086A (en) | 2023-12-28 | 2023-12-28 | Bridge buffer stop that possesses stress wave dredging function |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN117536086A true CN117536086A (en) | 2024-02-09 |
Family
ID=89788372
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202311825645.4A Pending CN117536086A (en) | 2023-12-28 | 2023-12-28 | Bridge buffer stop that possesses stress wave dredging function |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN117536086A (en) |
-
2023
- 2023-12-28 CN CN202311825645.4A patent/CN117536086A/en active Pending
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