CN107090790A - A kind of flexible honeycomb structural collision protection device - Google Patents
A kind of flexible honeycomb structural collision protection device Download PDFInfo
- Publication number
- CN107090790A CN107090790A CN201710294221.8A CN201710294221A CN107090790A CN 107090790 A CN107090790 A CN 107090790A CN 201710294221 A CN201710294221 A CN 201710294221A CN 107090790 A CN107090790 A CN 107090790A
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- China
- Prior art keywords
- collision
- layer anti
- collision ring
- internal layer
- outer layer
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Classifications
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- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01F—ADDITIONAL WORK, SUCH AS EQUIPPING ROADS OR THE CONSTRUCTION OF PLATFORMS, HELICOPTER LANDING STAGES, SIGNS, SNOW FENCES, OR THE LIKE
- E01F15/00—Safety arrangements for slowing, redirecting or stopping errant vehicles, e.g. guard posts or bollards; Arrangements for reducing damage to roadside structures due to vehicular impact
- E01F15/14—Safety arrangements for slowing, redirecting or stopping errant vehicles, e.g. guard posts or bollards; Arrangements for reducing damage to roadside structures due to vehicular impact specially adapted for local protection, e.g. for bridge piers, for traffic islands
- E01F15/141—Safety arrangements for slowing, redirecting or stopping errant vehicles, e.g. guard posts or bollards; Arrangements for reducing damage to roadside structures due to vehicular impact specially adapted for local protection, e.g. for bridge piers, for traffic islands for column or post protection
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01F—ADDITIONAL WORK, SUCH AS EQUIPPING ROADS OR THE CONSTRUCTION OF PLATFORMS, HELICOPTER LANDING STAGES, SIGNS, SNOW FENCES, OR THE LIKE
- E01F15/00—Safety arrangements for slowing, redirecting or stopping errant vehicles, e.g. guard posts or bollards; Arrangements for reducing damage to roadside structures due to vehicular impact
- E01F15/14—Safety arrangements for slowing, redirecting or stopping errant vehicles, e.g. guard posts or bollards; Arrangements for reducing damage to roadside structures due to vehicular impact specially adapted for local protection, e.g. for bridge piers, for traffic islands
- E01F15/145—Means for vehicle stopping using impact energy absorbers
- E01F15/146—Means for vehicle stopping using impact energy absorbers fixed arrangements
Abstract
The invention belongs to safety protection equipment field in bridge engineering construction, specifically related to a kind of flexible honeycomb structural collision protection device, internal layer anti-collision ring and outer layer anti-collision ring including being coated on bridge pier periphery successively, the agent structure of internal layer anti-collision ring includes two flexible boards being coaxially arranged and the honeycomb being clipped between two flexible boards, honeycomb is fabricated from a flexible material, honeycomb is made up of several polygon hole body close-packed arrays, outer layer anti-collision ring is is coated on one layer of rigid material, and internal layer anti-collision ring and outer layer anti-collision ring are connected in interface by an attachment means.The anticollision device, collision-prevention device of the present invention has good rigidity and flexibility simultaneously; moderate finite deformation and excellent energy-absorbing effect can be produced during collision; bridge pier and vehicle are protected simultaneously; and can actively adapt to various types of bridge piers; install rapidly and conveniently; time and financial cost are greatly reduced, the anticollision design for all kinds of bridge piers that are particularly suitable for use in.
Description
Technical field
The invention belongs to safety protection equipment field in bridge engineering construction, more particularly, to a kind of flexible honeycomb knot
Structure anticollision device, collision-prevention device, it can protect bridge pier and vehicle simultaneously, and can actively adapt to various forms and the bridge pier of size.
Background technology
With flourishing for China's communication, many bridges such as overbridge are more and more, alleviating traffic pressure
Many hidden peril of accident are also brought simultaneously, such as the automobile run at high speed and the tragic incident that bridge pier bumps against are much.Cause
This, prevents the research of car collision device very meaningful and necessity to bridge pier.
At present, the anticollision device, collision-prevention device of domestic main flow is mostly elastic deformation anti-collision facility and damages deformation anti-collision facility by pressure.Its
General principle is all the destruction by using aggregates such as the elastomeric material deformation and steel plate of anticollision device, collision-prevention device and vehicle contact generation
Etc. energy is absorbed, so as to play a part of buffering to protect bridge.Conventional is steel construction deformation energy absorption device, and the energy dissipating is set
Apply and be plastically deformed damaged energy-absorbing using steel, when automobile impacting anticollision device, collision-prevention device, large deformation, absorption portion occur for anti-collision structure steel plate
Divide collision energy, and extend time of contact, be minimized impact peak value, simultaneously because malformation and phase interaction
With, and anticollision device, collision-prevention device and it is unlocked can freely rotate, so as to stir headstock direction, reduce vehicle and interstructural energy
Exchange.But existing apparatus main body adopt it is most of use Steel material, deformation is often too small during collision or deficiency, and energy-absorbing effect is not
Enough ideals, and because integral rigidity is too big, it is limited for the protecting effect of vehicle.And existing anticollision device, collision-prevention device design and installation
When need according to the position of bridge pier itself, outer shape, the multiple factors such as vehicle flowrate and ambient environmental conditions are carried out.Therefore
Bridge anti-collision device at this stage must be customized according to the actual conditions of correspondence bridge, and device is mostly to be directly welded at base
On seat, so that a series of such as costs brought are high, maintenance cost is high, the high shortcoming of maintenance cost, and because design production is past
It is even more virtually to add many time costs toward more time can be expended.The cost of universal bridge anti-collision device all exists
It is millions of in addition ten million rank, but will be received after being subjected to once hitting can not be extensive for the device of it happens frequently high cost
Multiple destruction, consequently, it is possible to cause the loss of great economic value.
Sum it up, in existing technology, the main body of most anticollision device, collision-prevention devices is all by rigidity very big steel case
Constituted etc. structure, although this ensure that the rigidity of anticollision device, collision-prevention device, but also there is following defect and deficiency：(1) when colliding
The malformation of conventional crash device is small, and energy-absorbing effect is general, causes conventional crash device to be reached for bridge pier protecting effect
It is required that, but the protective capability to vehicle is not enough, the anticollision device, collision-prevention device of (2) traditional structure need according to the parameters of bridge pier come
Designed in advance is manufactured, and the consuming time is long, and financial cost is high, and (3) traditional structure is due to its profile feature and the material of itself
Characteristic, the shortcomings of generally existing installs inconvenience.Due to there is drawbacks described above and deficiency, this area, which is needed badly, makes further perfect
And improvement, find a kind of anticollision device, collision-prevention device of new structure type.
The content of the invention
For the disadvantages described above or Improvement requirement of prior art, the invention provides a kind of flexible honeycomb structural collision protection dress
Put, the outer layer anti-collision ring that its internal layer anti-collision ring being made up of elastomeric material and rigid material are made is constituted, internal layer anti-collision ring is soft
Property the honeycomb that is made of material, and it is internal be filled with energy-absorbing material, while have good rigidity and flexibility, energy during collision
Moderate finite deformation and excellent energy-absorbing effect are produced, while protecting bridge pier and vehicle.It is main and the structure can be produced in advance
It is dynamic to adapt to various types of bridge piers, install rapidly and conveniently, greatly reduce time and financial cost, be particularly suitable for use in all kinds of
The anticollision design of bridge pier.
To achieve the above object, according to one aspect of the present invention there is provided a kind of flexible honeycomb structural collision protection device, its
Be characterised by, including be coated on successively bridge pier periphery internal layer anti-collision ring and outer layer anti-collision ring,
The agent structure of the internal layer anti-collision ring includes two flexible boards being coaxially arranged and the honeybee being clipped between two flexible boards
Nest structure, the honeycomb is fabricated from a flexible material, and the honeycomb is made up of several polygon hole body close-packed arrays,
Adjacent side is shared between adjacent polygon hole body, the outer layer anti-collision ring is to be coated on one layer of rigid material on the outside of internal layer anti-collision ring
Material, the interface of the internal layer anti-collision ring and outer layer anti-collision ring is arranged at same position, will by an attachment means in interface
Internal layer anti-collision ring and outer layer anti-collision ring are connected.
Specifically, the outer layer anti-collision ring is globoidal structure, when running into collision, can bend to sphere, effectively should
Power is dispersed, reduces the partial structurtes destruction that stress concentration is caused.And internal layer anti-collision ring uses cellular agent structure, energy
Enough increase the flexibility of structure, effectively absorb energy and play cushioning effect, entirety can also be mitigated while integral rigidity is ensured
The weight of structure.Outer layer anti-collision ring and internal layer anti-collision ring, which are combined, collectively forms anticollision device, collision-prevention device, and buffering is absorbed with good anticollision
Effect.And it is fixed by attachment means, then facilitate and changed after damage.
It is further preferred that the polygon hole body is the through hole set perpendicular to bridge pier centerline direction, adjacent polygon
Close-packed arrays between shape hole body.Buffering can be effectively absorbed using the polygonal hole body with cavity and mitigate weight, and root
According to needing to use polygon hole body perpendicular to bridge pier centerline direction, then energy during collision can be greatly absorbed, reduced
Damage to bridge pier and vehicle.
Preferably, the polygon hole body of the internal layer anti-collision ring is shaped as regular hexagon, square or octagon.
More comparative test shows, the alveolate texture that the polygon hole body of regular polygon is constituted, and its structure straight uniform can be effective
Ground is dispersed by foreign impacts power, and its buffering effect is more preferable.
Preferably, the agent structure of the honeycomb is polyurethane material.Polyurethane material soft texture, becomes in destruction
The reaction force of vehicle is substantially reduced during shape, vehicle, reduction loss can be preferably protected compared to conventional apparatus.
Preferably, energy-absorbing material is filled with inside the polygonal hole body, the energy-absorbing material is polyurethane foam, glass envelope
Foam, pvc foams or foamed aluminium.Above-mentioned material is pumiceous texture, light weight, and can effectively improve bradyseism energy-absorbing effect,
Reduce the impact to vehicle and bridge pier.
Preferably, the outer layer anti-collision ring is made up of steel plate.
Preferably, the attachment means are the clip of " I-shaped ", internal layer anti-collision ring and outer layer the anti-collision ring interface
The correspondence position that two ends are respectively clamped into underbeam on the both sides of clip, the clip is provided with multiple perforation, and bolt passes through inside and outside layer
Anti-collision ring and perforation, internal layer anti-collision ring and outer layer anti-collision ring are connected.
Preferably, the clip is made up of high strength steel or flexible material.
More comparative test shows that the connection that can not only realize ectonexine anti-collision ring using " I-shaped " clip is consolidated
It is fixed, and because it uses symmetrical structure, occupy little space, simple installation so that anti-collision ring can intercept random length makes this
The anticollision device, collision-prevention device of invention can actively adapt to the characteristic of various bridge piers, and use high strength steel or flexible material then to can adapt to not
Use with occasion needs.
In general, by the contemplated above technical scheme of the present invention compared with prior art, with advantages below and
Beneficial effect：
(1) anticollision device, collision-prevention device of the invention is combined using outer layer anti-collision ring and internal layer anti-collision ring and collectively formed, with good
Anticollision absorbs the effect of buffering.Internal layer anti-collision ring main body uses alveolate texture and flexible material, enough in guarantee rigidity
The flexibility of structure is added simultaneously, the weight of structure is reduced, while having good crash-worthiness.The internal layer that elastomer is made is prevented
Hit the outer layer anti-collision ring that is made with rigid material of circle to link together, enable the conduct when colliding of rigid material and elastomer core
One integrally bending makes the stress of rum point be more uniformly distributed than traditional stiffened panel structure stress distribution into sphere, reduces local
Structure actual effect is destroyed, so as to improve the horizontal limit bearing capacity and crash-worthiness of anticollision device, collision-prevention device Sandwich Plates.
(2) internal layer anti-collision ring of the invention uses the polygon hole body with cavity, can effectively absorb buffering and subtract
Light weight, adopts the alveolate texture further constituted using the polygon hole body of regular hexagon, its structure straight uniform can be effective
Ground is dispersed by foreign impacts power, and its buffering effect is more preferable.Energy-absorbing material is filled with inside the polygonal hole body, then enters one
Step strengthens its bradyseism energy-absorbing effect, overall structure is fully buffered when receiving collision impact load, is absorbed energy, especially
It can subtract the damage for vehicle.
(3) honeycomb of the invention uses polyurethane material, its soft texture, in damaged deformation to the anti-work of vehicle
Firmly substantially reduce, vehicle, reduction loss can be preferably protected compared to conventional apparatus.And energy-absorbing material is polyurethane foam
Foam, glass foam, pvc foams or foamed aluminium, above-mentioned material is pumiceous texture, light weight, and can effectively improve bradyseism
Energy-absorbing effect, reduces the impact to vehicle and bridge pier.
(4) present invention can not only realize being connected for ectonexine anti-collision ring using " I-shaped " clip, and due to
It uses symmetrical structure, occupies little space, simple installation so that anti-collision ring can intercept random length, makes the anticollision of the present invention
Device can actively adapt to the characteristic of various bridge piers, and use high strength steel or flexible material then to can adapt to making for different occasions
With needs.
(5) present invention can arbitrarily intercept suitable length due to the soft characteristic of polyurethane material, so as to actively
Various forms of bridge piers are adapted to, installation can be directly wrapped up at the scene.Need passively to manufacture and design compared to conventional apparatus, save
Design form, makes the processes such as mould, greatly reduces design, production, transport and the cost installed of anticollision device, collision-prevention device, suitable
Large-scale promotion is closed to use.
Brief description of the drawings
Fig. 1 is the basic block diagram of the anticollision device, collision-prevention device of the present invention；
Fig. 2 is the Section A-A sectional view of anticollision device, collision-prevention device in Fig. 1；
Fig. 3 is adaptation schematic diagram of the anticollision device, collision-prevention device with bridge pier of different shapes of the present invention.
In all of the figs, identical reference is used for representing identical element or structure, wherein：
1- outer layer anti-collision rings, 2- internal layer anti-collision rings, 3- polygon hole bodies, 4- attachment means, 5- bolts.
Embodiment
In order to make the purpose , technical scheme and advantage of the present invention be clearer, it is right below in conjunction with drawings and Examples
The present invention is further elaborated.It should be appreciated that the specific embodiments described herein are merely illustrative of the present invention, and
It is not used in the restriction present invention.As long as in addition, technical characteristic involved in each embodiment of invention described below
Not constituting conflict each other can just be mutually combined.
Fig. 1 is a kind of structural representation of flexible honeycomb structural collision protection device of the present invention, as illustrated, including wrapping successively
The internal layer anti-collision ring and outer layer anti-collision ring of bridge pier periphery are overlayed on,
The agent structure of the internal layer anti-collision ring includes two flexible boards being coaxially arranged and the honeybee being clipped between two flexible boards
Nest structure, the honeycomb is fabricated from a flexible material, and the honeycomb is made up of several polygon hole body close-packed arrays,
Adjacent side is shared between adjacent polygon hole body, the outer layer anti-collision ring is to be coated on one layer of rigid material on the outside of internal layer anti-collision ring
Material, the interface of the internal layer anti-collision ring and outer layer anti-collision ring is arranged at same position, will by an attachment means in interface
Internal layer anti-collision ring and outer layer anti-collision ring are connected.
In one particular embodiment of the present invention, the polygon hole body is to be set perpendicular to bridge pier centerline direction
Close-packed arrays between through hole, adjacent polygons hole body.The shape of the polygon hole body can be regular hexagon, square or just
Any suitable forms such as octagon.
In another specific embodiment of the present invention, the agent structure of the honeycomb is polyurethane material.It is described
Energy-absorbing material can be filled with inside polygonal hole body, the energy-absorbing material is preferably polyurethane foam, glass foam, pvc foams
Or foamed aluminium.And the outer layer anti-collision ring can be made up of steel plate.
In another specific embodiment of the present invention, the attachment means are the clip of " I-shaped ", and the internal layer is prevented
Hit circle and outer layer anti-collision ring interface two ends be respectively clamped into underbeam on the both sides of clip, the clip correspondence position be provided with it is many
Individual perforation, bolt passes through inside and outside layer anti-collision ring and perforation, and internal layer anti-collision ring and outer layer anti-collision ring are connected.The clip
It is made up of high strength steel or flexible material.
Preferably to explain the present invention, specific embodiment is given below：
Referring to the drawings 1 (basic block diagram), a kind of flexible honeycomb structural collision protection device includes one be looped around around bridge pier
Multiple regular hexagon hole bodies 3 are provided with the internal layer anti-collision ring 2 that layer flexible polyurethane is made, the main body of internal layer anti-collision ring 2.Inside
The outer surface of layer anti-collision ring 2 is with one layer of steel plate formation outer layer anti-collision ring 1.In internal layer anti-collision ring 2 and the joint of outer layer anti-collision ring 1
Place, two anti-collision rings are respectively clamped into the both sides of " I-shaped " buckle 4, be connected and fixed on by way of bolt 5 is with bolt bridge pier it
On.
Referring to the drawings 1, the internal layer anti-collision ring 2 of polyurethane material ensure that apparatus main body has good deformation energy-absorbing effect
Really, simultaneously because the characteristic of material in itself also can preferably protect vehicle.The polyurethane foam of filling in regular hexagon hole body 3,
Bradyseism energy-absorbing effect can be effectively improved, and alleviates the weight of main body, convenient transport is installed, and reduces cost.Outer layer plate 1
The rigidity of device is then ensure that, the probability for the failure that device occurs in collision is effectively reduced, and can be with internal layer anti-collision ring
An entirety is formed to provide more preferable protecting effect." I-shaped " clip, using symmetrical structure, occupies little space, and installs letter
Just so that anti-collision ring can intercept random length, it is ensured that structure actively adapts to the characteristic of various bridge piers.
When vehicle knocks bridge pier due to various uncontrollable reasons, contact, then pass impact with outer layer plate first
It is defeated to arrive the cellular anti-collision ring of internal layer.Due to the spy of regular hexagon perforate and the presence of filler, and internal layer polyurethane material
Property, internal layer anti-collision ring produces compared with large deformation, rigid collision is converted into elastic-plastic impact, big energy and effectively reduction is absorbed
The speed of vehicle, while protect bridge pier and vehicle.
As it will be easily appreciated by one skilled in the art that the foregoing is merely illustrative of the preferred embodiments of the present invention, it is not used to
The limitation present invention, any modifications, equivalent substitutions and improvements made within the spirit and principles of the invention etc., it all should include
Within protection scope of the present invention.
Claims (8)
1. a kind of flexible honeycomb structural collision protection device, it is characterised in that the internal layer anti-collision ring including being coated on bridge pier periphery successively
(2) and outer layer anti-collision ring (1),
The agent structure of the internal layer anti-collision ring (2) includes two flexible boards being coaxially arranged and is clipped in honeycomb knot between two flexible boards
Structure, the honeycomb is made of flexible material, and the honeycomb is by several polygon hole body (3) close-packed arrays structures
Into, shared adjacent side between adjacent polygon hole body (3), the outer layer anti-collision ring (1) is to be coated on the outside of internal layer anti-collision ring (2)
One layer of rigid material, the interface of the internal layer anti-collision ring (2) and outer layer anti-collision ring (1) is arranged at same position, in interface
Internal layer anti-collision ring (2) and outer layer anti-collision ring (1) are connected by place by an attachment means (4).
2. anticollision device, collision-prevention device as claimed in claim 1, it is characterised in that the polygon hole body (3) is perpendicular to bridge pier center
Close-packed arrays between the through hole that line direction is set, adjacent polygons hole body (3).
3. anticollision device, collision-prevention device as claimed in claim 1 or 2, it is characterised in that the polygon hole body of the internal layer anti-collision ring (2)
(3) be shaped as regular hexagon, square or octagon.
4. anticollision device, collision-prevention device as claimed in claim 3, it is characterised in that the agent structure of the honeycomb is polyurethane material
Material.
5. anticollision device, collision-prevention device as claimed in claim 4, it is characterised in that energy-absorbing material is filled with inside the polygon hole body (3)
Material, the energy-absorbing material is polyurethane foam, glass foam, pvc foams or foamed aluminium.
6. anticollision device, collision-prevention device as claimed in claim 5, it is characterised in that the outer layer anti-collision ring (1) is made up of steel plate.
7. anticollision device, collision-prevention device as claimed in claim 6, it is characterised in that the attachment means (4) are the clip of " I-shaped ", institute
The two ends for stating internal layer anti-collision ring (2) and outer layer anti-collision ring (1) interface are respectively clamped into pair of underbeam on the both sides of clip, the clip
Position is answered to be provided with multiple perforation, bolt (5) passes through inside and outside layer anti-collision ring and perforation, by internal layer anti-collision ring (2) and outer layer anticollision
Circle (1) is connected.
8. anticollision device, collision-prevention device as claimed in claim 7, it is characterised in that the clip is made up of high strength steel or flexible material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710294221.8A CN107090790B (en) | 2017-04-28 | 2017-04-28 | Flexible honeycomb structure buffer stop |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710294221.8A CN107090790B (en) | 2017-04-28 | 2017-04-28 | Flexible honeycomb structure buffer stop |
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| CN107090790A true CN107090790A (en) | 2017-08-25 |
| CN107090790B CN107090790B (en) | 2020-01-10 |
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| CN107815960A (en) * | 2017-11-01 | 2018-03-20 | 佛山科学技术学院 | A kind of pier anticollision system |
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