CN109137831A - A kind of double-head arrow formula bridge pier protection guard - Google Patents
A kind of double-head arrow formula bridge pier protection guard Download PDFInfo
- Publication number
- CN109137831A CN109137831A CN201811256738.9A CN201811256738A CN109137831A CN 109137831 A CN109137831 A CN 109137831A CN 201811256738 A CN201811256738 A CN 201811256738A CN 109137831 A CN109137831 A CN 109137831A
- Authority
- CN
- China
- Prior art keywords
- energy
- bridge pier
- absorbing unit
- collision
- double
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 238000010276 construction Methods 0.000 claims abstract description 21
- 230000001681 protective effect Effects 0.000 claims abstract description 8
- 238000007789 sealing Methods 0.000 claims abstract description 4
- 229910000831 Steel Inorganic materials 0.000 claims description 21
- 239000010959 steel Substances 0.000 claims description 21
- 239000000463 material Substances 0.000 claims description 17
- 239000000126 substance Substances 0.000 claims description 13
- 230000007704 transition Effects 0.000 claims description 8
- 238000003466 welding Methods 0.000 claims description 7
- 125000004122 cyclic group Chemical group 0.000 claims description 4
- 238000007747 plating Methods 0.000 claims description 4
- 239000004698 Polyethylene Substances 0.000 claims description 3
- 230000001154 acute effect Effects 0.000 claims description 3
- -1 polyethylene Polymers 0.000 claims description 3
- 229920000573 polyethylene Polymers 0.000 claims description 3
- 238000004519 manufacturing process Methods 0.000 abstract description 6
- 239000011358 absorbing material Substances 0.000 abstract description 3
- 230000000694 effects Effects 0.000 description 11
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 10
- 230000008901 benefit Effects 0.000 description 7
- 238000010521 absorption reaction Methods 0.000 description 3
- 238000004220 aggregation Methods 0.000 description 3
- 230000002776 aggregation Effects 0.000 description 3
- 230000001965 increasing effect Effects 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 238000005728 strengthening Methods 0.000 description 3
- 238000004458 analytical method Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 239000003814 drug Substances 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 230000002028 premature Effects 0.000 description 2
- 238000011160 research Methods 0.000 description 2
- 238000004088 simulation Methods 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 230000004888 barrier function Effects 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 230000003139 buffering effect Effects 0.000 description 1
- 239000004568 cement Substances 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 238000005253 cladding Methods 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000006378 damage Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000005553 drilling Methods 0.000 description 1
- 235000013399 edible fruits Nutrition 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 238000007667 floating Methods 0.000 description 1
- FWQHNLCNFPYBCA-UHFFFAOYSA-N fluoran Chemical compound C12=CC=CC=C2OC2=CC=CC=C2C11OC(=O)C2=CC=CC=C21 FWQHNLCNFPYBCA-UHFFFAOYSA-N 0.000 description 1
- 239000003292 glue Substances 0.000 description 1
- 239000002905 metal composite material Substances 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 239000003973 paint Substances 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 230000021715 photosynthesis, light harvesting Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000000750 progressive effect Effects 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 239000004576 sand Substances 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
- 239000002023 wood Substances 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02B—HYDRAULIC ENGINEERING
- E02B3/00—Engineering works in connection with control or use of streams, rivers, coasts, or other marine sites; Sealings or joints for engineering works in general
- E02B3/20—Equipment for shipping on coasts, in harbours or on other fixed marine structures, e.g. bollards
- E02B3/26—Fenders
-
- 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
- E01D19/02—Piers; Abutments ; Protecting same against drifting ice
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A30/00—Adapting or protecting infrastructure or their operation
- Y02A30/30—Adapting or protecting infrastructure or their operation in transportation, e.g. on roads, waterways or railways
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Ocean & Marine Engineering (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Environmental & Geological Engineering (AREA)
- Mechanical Engineering (AREA)
- Architecture (AREA)
- Bridges Or Land Bridges (AREA)
Abstract
The present invention relates to a kind of double-head arrow formula bridge pier protection guards, including at least one anti-collision structure and for connecting adjacent anti-collision structure or connecting the connection structure of anti-collision structure and bridge pier；Anti-collision structure includes that outer layer meets and hits panel, intermediate energy-absorbing support construction, internal layer support plate；Intermediate energy-absorbing support construction is the negative poisson's ratio structure formed by energy-absorbing unit according to the size array of bridge pier；Energy-absorbing unit is double-head arrow type structure, meets positioned at outermost energy-absorbing unit with outer layer and hits panel and connect, the energy-absorbing unit positioned at innermost layer is connect with internal layer support plate；The top and bottom of anti-collision structure are equipped with the panel of sealing, and entire anti-collision structure is made to form seal case.Anti-collision structure of the invention has negative poisson's ratio characteristic, effectively increases energy dissipating time and energy-absorbing material deformation extent, anticollision device, collision-prevention device greatly improves the protective effect of bridge pier, and structural stability is also enhanced；The arrangement of energy-absorbing unit structural periodicity, simple for structure, simple production process.
Description
Technical field
The present invention relates to building anti-collision technique fields, and in particular to a kind of double-head arrow formula bridge pier protection guard.
Background technique
Bridge pier is knocked and causes bridge to be damaged accident and happen occasionally, and economic loss is huge.Therefore the anticollision dress of bridge pier
The research set is particularly significant.Existing anticollision device of pier is many kinds of, there is diversified construction and material forms.By
Years of researches use, and develop including man-made island made of being built as structures such as sand, stones, are deformed using materials such as rubber come energy dissipating
Flexible protection block and floating or fixed anticollision box etc., the basic principle is that based on auxiliary building barrier, energy absorption,
Momentum buffering.
Wherein anticollision box structure has many advantages, such as moderate cost, protective are high, manufacture and is easy for installation.It is using most
For extensive anticollision device of pier.When ship collision anticollision box, big deformation occurs for body structure, on the one hand absorbs part and touches
Energy is hit, time of contact is on the other hand extended, is minimized the peak value of ship impact force.But inside existing anticollision box
The section of energy-absorbing unit generally use the positive Poisson's ratio structure such as regular quadrangle, regular hexagon, octagon or circle, this knot
Configuration formula will lead to when stem etc. hits anticollision box, and anticollision box structure can be expanded perpendicular to Impact direction, and
There is biggish stress concentration phenomenon in impingement position, and as ship continuation invades forward, it is broken that tearing can occur rapidly for body structure
It is bad, it fails rapidly so as to cause entire anti-collision structure.It is considerably shorter than and is expected so as to cause the effective energy dissipating time of structure in shock, to bridge
The protective action of the buildings such as pier is limited, can not adapt to increasingly harsh Anti-bumping protection demand.
Summary of the invention
The technical problem to be solved in the present invention is that easily being torn for above-mentioned anti-collision structure of the existing technology
The deficiency of failure, provides a kind of double-head arrow formula bridge pier protection guard, and resistance to fracture is substantially improved in the knockout process such as ship in it
Can, anticollision device, collision-prevention device premature failure is avoided, to make full use of anticollision device, collision-prevention device to go to absorb Impact energy, when energy dissipating can be substantially improved
Between, effective protection bridge pier.
The present invention is technical solution used by solving technical problem set forth above are as follows:
A kind of double-head arrow formula bridge pier protection guard, the bridge pier protection guard include at least one anti-collision structure and are used for
It connects adjacent anti-collision structure or connects the connection structure of anti-collision structure and bridge pier；The anti-collision structure includes that outer layer meets the face of hitting
Plate, intermediate energy-absorbing support construction, internal layer support plate；The intermediate energy-absorbing support construction is the size by energy-absorbing unit according to bridge pier
The negative poisson's ratio structure that array is formed；The energy-absorbing unit is hollow frame structure, and cross section is double-head arrow shape, energy-absorbing list
Member includes constituting the first V-structure and the second V-structure by the side plate of one group of intersection respectively；The apex angle of first V-structure
Less than the apex angle of the second V-structure, the second V-structure is located inside the first V-structure, and the side plate bottom of two V-structures connects
It connects；Energy-absorbing unit positioned at same a line is connected by way of bottom end connects, and the energy-absorbing unit positioned at same row passes through the first V-type
The form that the apex angle of structure is connect with the apex angle of the second V-structure is connected；It is met positioned at outermost energy-absorbing unit and the outer layer
Panel connection is hit, the energy-absorbing unit positioned at innermost layer is connect with the internal layer support plate；The top and bottom of the anti-collision structure
The panel of sealing is installed, entire anti-collision structure is made to form seal case.
In above scheme, the energy-absorbing unit is arranged in the form of apex angle outwardly, the second V-structure of outer layer energy-absorbing unit
Apex angle and internal layer energy-absorbing unit the first V-structure apex angle weld, positioned at outermost energy-absorbing unit apex angle with it is described
Outer layer, which is met, hits panel welding, welds positioned at the base angle of the energy-absorbing unit of innermost layer and the internal layer support plate.
In above scheme, the apex angle of first V-structure is acute angle, and the vertex of the second V-structure is located at the first V-type knot
On the angular bisector of structure apex angle.
In above scheme, the both sides plate face of first V-structure and the second V-structure is slide plate, curved slab or wave
Card.
In above scheme, the outer layer, which is met, hits rigidity of the rigidity of panel not less than the intermediate energy-absorbing support construction, institute
It states outer layer and meets and hit panel and intermediate energy-absorbing unit using identical material, and outer layer meets the thickness for hitting panel not less than intermediate energy-absorbing
The wall panel thickness of unit.
In above scheme, along direction of flow, the cross-sectional width of the bridge pier protection guard is most wide at middle part, both ends by
Gradual change is narrow, and the intermediate energy-absorbing support construction of changeover portion carries out transition using incomplete double-head arrow type energy-absorbing unit.
In above scheme, the bridge pier protection guard is cyclic structure, including two anti-collision structures and two connection structures,
Two anti-collision structures are positioned opposite, and the both ends of two anti-collision structures pass through a connection structure respectively and are connected, and four are connected to form
Cyclic structure is to surround bridge pier.
In above scheme, the connection structure is steel plate, and at least row's bolt is arranged in the both ends of steel plate in the height direction
The length in hole, steel plate is determined according to the size of bridge pier；The inner surface of the internal layer support plate of the anti-collision structure is welded with connector,
The connector is similarly steel plate, and the steel plate of connector is equipped with the bolt hole being adapted to the steel plate of connection structure；Connection structure
Both ends overlapped respectively with the connector of two anti-collision structures, and locked by bolt, with the connection of two anti-collision structures of realization.
In above scheme, the bridge pier protection guard be C-shaped configuration, the anti-collision structure including a C-shaped, anti-collision structure
Dog-ear position carries out transition using incomplete double-head arrow type energy-absorbing unit；The connection structure is chemical bolt；The anticollision
Structure be equipped with the matched countersunk bolts hole of the chemical bolt, be fixedly connected by the chemical bolt with bridge pier.
In above scheme, the internal layer support plate surface of the anti-collision structure is fixedly installed with friction plate, the friction plate
Mounting means is welding, riveting or bolt fastening connection, and the material of friction plate uses rubber or polyethylene.
The beneficial effects of the present invention are:
(1) anti-collision structure has negative poisson's ratio characteristic, has the characteristic for shrinking aggregation to effect of impact position, on the one hand should
Structure the more is pressed the more close, and impingement position forms the effect of local strengthening, is reduced the stress concentration degree in the region, was effectively prevent
Early tearing failure；The structure in other regions around another aspect impingement position also occurs significantly to follow deformation, to fill
The deformation that surrounding structure is utilized is divided to carry out energy-absorbing.Due to effectively increasing energy dissipating time and energy-absorbing material deformation extent, anticollision
Device greatly improves the protective effect of the aquatic buildings such as bridge pier, and structural stability is also enhanced.
(2) along direction of flow, the cross-sectional width of bridge pier protection guard is most wide in centre, and both ends become narrow gradually, and meet stream
The area in face is minimum, and the intermediate energy-absorbing support construction of intermediate location can be carried out using incomplete indent hexagon energy-absorbing unit
Transition.The benefit designed in this way: on the one hand, water flow can be reduced to the active force of bridge pier protection guard, avoid being destroyed by rush of water by water；Separately
On the one hand, it needs ship's speed being reduced to zero when ship frontal impact, which is met, hits face, according to momentum theorem, impact force is most in this case
Greatly, and if ship is hit from the inclined-plane of changeover portion, ship can be flicked to side, and ship's speed can not reduce to zero along direction of flow,
Ship can be reduced in this way to the impact force of bridge pier protection guard.
(3) energy-absorbing unit structural periodicity is arranged, simple for structure, simple production process, and control of product quality is easy.It is intermediate
Energy-absorbing support construction has both supporting role, and material utilization amount and classification is effectively reduced.The bridge pier protection guard take full advantage of material,
The energy absorption ability of structure, finds through simulation analysis, and under identical material utilization amount, anti-collision effect can be improved 30% or so.It is comprehensive and
Speech, can be effectively reduced manufacturing cost.
Detailed description of the invention
Present invention will be further explained below with reference to the attached drawings and examples, in attached drawing:
Fig. 1 is the top view of the double-head arrow formula bridge pier protection guard of first embodiment of the invention；
Fig. 2 is the top view of the anti-collision structure of the bridge pier protection guard of double-head arrow formula shown in Fig. 1；
Fig. 3 is the structure chart of the energy-absorbing unit of anti-collision structure shown in Fig. 2；
Fig. 4 is the schematic diagram of energy-absorbing unit arrangement mode shown in Fig. 3；
Fig. 5 is the top view of the double-head arrow formula bridge pier protection guard of second embodiment of the invention；
Fig. 6 is the scheme of installation of the double-head arrow formula bridge pier protection guard of second embodiment of the invention；
Fig. 7 is the connection schematic diagram of anti-collision structure and bridge pier shown in Fig. 6.
In figure: 100, anti-collision structure；110, outer layer, which is met, hits panel；111, V-type stiffening plate；120, intermediate energy-absorbing support knot
Structure；121, energy-absorbing unit；122, the first V-structure；123, the second V-structure；130, internal layer support plate；140, connector；
150, countersunk bolts hole；160, chemical bolt；200, connection structure；300, friction plate；400, bridge pier.
Specific embodiment
For a clearer understanding of the technical characteristics, objects and effects of the present invention, now control attached drawing is described in detail
A specific embodiment of the invention.
The present invention proposes a kind of double-head arrow formula bridge pier protection guard, including at least one anti-collision structure 100 and for connecting
It connects adjacent anti-collision structure 100 or connects the connection structure 200 of anti-collision structure 100 and bridge pier 400.Anti-collision structure 100 includes outer
Layer, which is met, hits panel 110, intermediate energy-absorbing support construction 120, internal layer support plate 130.Intermediate energy-absorbing support construction 120 is by energy-absorbing list
The negative poisson's ratio structure that member 121 is formed according to the size array of bridge pier 400.Energy-absorbing unit 121 is hollow frame structure, horizontal
Section is double-head arrow shape, and energy-absorbing unit 121 includes being made of the first V-structure 122 and the second V-type the side plate of one group of intersection respectively
Structure 123；For the vertex angle theta 1 of first V-structure 122 less than the vertex angle theta 2 of the second V-structure 123, the second V-structure 123 is located at the
Inside one V-structure 122, the side plate bottom connection of two V-structures；Energy-absorbing unit 121 positioned at same a line is connected by bottom end
The form connect is connected, and passes through the apex angle and the second V-structure 123 of the first V-structure 122 positioned at the energy-absorbing unit 121 of same row
Apex angle connection form be connected.It meets positioned at outermost energy-absorbing unit 121 with outer layer and hits panel 110 and connect, be located at innermost layer
Energy-absorbing unit 121 connect with internal layer support plate 130.The top and bottom of anti-collision structure 100 are equipped with the panel of sealing, face
The top and bottom that plate covers entire anti-collision structure 100 make entire anti-collision structure 100 form seal case, can around bridge pier and
Float on the water surface.
It as shown in Figs 1-4, is the double-head arrow formula bridge pier protection guard of first embodiment of the invention, bridge pier protection guard is ring
Shape structure, including two anti-collision structures 100 and two connection structures 200, two anti-collision structures 100 are positioned opposite, two anticollisions
The both ends of structure 100 pass through a connection structure 200 respectively and are connected, and four are connected to form cyclic structure to surround bridge pier 400.
Entire bridge pier protection guard floats on the water surface around bridge pier.
Form arrangement of the energy-absorbing unit 121 with apex angle outwardly, the apex angle of the second V-structure 123 of outer layer energy-absorbing unit 121
It is welded with the apex angle of the first V-structure 122 of internal layer energy-absorbing unit 121, positioned at 121 yuan of outermost energy-absorbing list of apex angles and outside
Layer, which is met, hits the welding of panel 110, welds positioned at the base angle of the energy-absorbing unit 121 of innermost layer and internal layer support plate 130.
As shown in figure 3,121 size variable of energy-absorbing unit includes the brachium L1 of the first V-structure 122, vertex angle theta 1；2nd V
The brachium L2 of type structure 123, vertex angle theta 2.Different dimension combinations has corresponded to different Poisson ratio, hits grade according to not shipmate
It is required that being in optimized selection.Designing points are as follows: the angle that the vertex of the second V-structure 123 is located at 122 apex angle of the first V-structure is flat
On separated time, it may be assumed that
In the present embodiment, the vertex angle theta 1 of the first V-structure 122 is preferably acute angle.
The major dimension of double-head arrow formula bridge pier protection guard is hit grade by ship and is determined, the horizontal and vertical row of energy-absorbing unit 121
Cloth quantity is then determined by unit size and structure major dimension jointly.Along direction of flow, the cross-sectional width of bridge pier protection guard
Most wide in centre, both ends become narrow gradually, and the area of fluoran stream surface is minimum, and the intermediate energy-absorbing support construction 120 of intermediate location can adopt
It cannots be used up whole double-head arrow type energy-absorbing unit and carries out transition, specifically, outer layer is met and hits panel 110 and be designed as ladder by the present embodiment
Shape.The benefit designed in this way: on the one hand, water flow can be reduced to the active force of bridge pier protection guard, avoid being destroyed by rush of water by water；It is another
Aspect needs ship's speed being reduced to zero when ship frontal impact, which is met, hits face, and according to momentum theorem, impact force is most in this case
Greatly, and if ship is hit from the inclined-plane of changeover portion, ship can be flicked to side, and ship's speed can not reduce to zero along direction of flow,
Ship can be reduced in this way to the impact force of bridge pier protection guard.
As shown in Figs. 1-2, connection structure 200 is steel plate, and the both ends of steel plate are arranged row's or more in the height direction
The length of bolt hole, steel plate is determined according to the size of bridge pier 400.The inner surface of the internal layer support plate 130 of anti-collision structure 100 welds
There is connector 140, connector 140 is similarly steel plate, and the steel plate of connector 140 is equipped with to be adapted to the steel plate of connection structure 200
Bolt hole；The both ends of connection structure 200 are overlapped with the connector 140 of two anti-collision structures 100 respectively, and pass through bolt lock
Tightly, with the connection of two anti-collision structures 100 of realization.In the steel grade of the steel plate use of connection structure 200, plate thickness are not less than
Layer support plate 130, avoids being broken to enhance the intensity of connection structure 200.
The plate face on 123 both sides of the first V-structure 122 and the second V-structure of energy-absorbing unit 121 can be slide plate,
Curved slab or corrugated plating can be used.Wherein, corrugated plating can be wave-shape board, bending plate, square waveform corrugated plating or trapezoidal wave
The structure types such as card.In the present embodiment, the plate face of energy-absorbing unit 121 uses slide plate.The wall panel thickness of energy-absorbing unit 121 is
3~10mm.Outer layer, which is met, hits panel 110, intermediate energy-absorbing support construction 120, internal layer support plate 130 using metal material or composite wood
Material.
Under by the effect of the local assaults load such as ship collision, intermediate energy-absorbing support construction 120 is made perpendicular to load
With aggregation is shunk on direction, the effect of local strengthening is formd, effectively prevent structure to be torn destruction and loses protection effect
Fruit.Outer layer, which is met, to be hit panel 110 and is hit, and intermediate 120 one side of energy-absorbing support construction, which is required to support outer layer, meets and hit panel
110, another aspect opposed outer layer, which is met, to be hit panel 110 and will deform first, therefore is met and hit the rigidity of plate and need to be greater than and support behind
Plate realizes the effect for increasing effect of energy dissipation to realize that pier protective device big as far as possible is compressed.It such as meets and hits plate and adopted with support plate
With material of the same race, then meets and hit plate thickness and need to be greater than support plate plate thickness.
130 surface of internal layer support plate of anti-collision structure 100 is fixedly installed with friction plate 300, the mounting means of friction plate 300
Material for the connection of welding, riveting or bolt fastening, friction plate 300 uses rubber or polyethylene, and friction plate 300 is located at internal layer branch
Between fagging 130 and bridge pier 400, protective action can be played to bridge pier 400.
For the corrosion resistance for improving double-head arrow formula bridge pier protection guard, the double-head arrow formula bridge pier protection guard is brushed outside
Anti-decaying paint, or cladding outer covering layer, outer covering layer are FRP (fibre reinforced composites) material, FRP material outer coating with a thickness of 3~
10mm。
It as illustrated in figs. 5-7, is the double-head arrow formula bridge pier protection guard of second embodiment of the invention, double-head arrow formula Bridge Pier
Device is C-shaped configuration, the anti-collision structure 100 including a C-shaped, and the dog-ear position of anti-collision structure 100 uses incomplete double arrows
Head dummy energy-absorbing unit 121 carries out transition.In the present embodiment, connection structure 200 is chemical bolt 160, the anti-collision structure 100 of C-shaped
It is connect around bridge pier 400 and by chemical bolt 160 with bridge pier 400.Anti-collision structure 100 is equipped with and matches with chemical bolt 160
Countersunk bolts hole 150, be fixedly connected by chemical bolt 160 with bridge pier 400.In general, bridge pier 400 is cement steel
Structure, drilling and borehole cleaning on bridge pier 400 are placed in medicament pipe, and chemical bolt 160 are screwed in countersunk bolts hole 150, in chemistry
Under the action of bolt 160 squeezes, medicament tracheal rupture, resin, curing agent and the mixing of other particles, and wadding warp chemical bolt 160
Gap between hole wall, after glue hardening, anti-collision structure 100 is bonded with bridge pier 400.
Compared with prior art, double-head arrow formula bridge pier protection guard of the invention has the following beneficial effects:
(1) anti-collision structure 100 has negative poisson's ratio characteristic, has the characteristic that aggregation is shunk to effect of impact position, a side
The face structure the more is pressed the more close, and impingement position forms the effect of local strengthening, reduces the stress concentration degree in the region, effectively anti-
Only premature tearing failure；The structure in other regions around another aspect impingement position also occurs significantly to follow deformation, from
And the deformation for taking full advantage of surrounding structure carries out energy-absorbing.Due to effectively increasing energy dissipating time and energy-absorbing material deformation extent,
Anticollision device, collision-prevention device greatly improves the protective effect of the aquatic buildings such as bridge pier 400, and structural stability is also enhanced.
(2) along direction of flow, the cross-sectional width of bridge pier protection guard is most wide in centre, and both ends become narrow gradually, and meet stream
The area in face is minimum, and the intermediate energy-absorbing support construction 120 of intermediate location can use incomplete indent hexagon energy-absorbing unit
Carry out transition.The benefit designed in this way: on the one hand, water flow can be reduced to the active force of bridge pier protection guard, avoid being rushed by water
It ruins；On the other hand, it needs ship's speed being reduced to zero when ship frontal impact, which is met, hits face, according to momentum theorem, hit in this case
Power maximum is hit, and if ship is hit from the inclined-plane of changeover portion, ship can be flicked to side, and ship's speed can not subtract along direction of flow
To zero, ship can be reduced in this way to the impact force of bridge pier protection guard.
(3) 121 structural periodicity of energy-absorbing unit is arranged, simple for structure, simple production process, and control of product quality is easy.
Intermediate energy-absorbing support construction 120 has both supporting role, and material utilization amount and classification is effectively reduced.The double-head arrow formula bridge pier protection guard
The energy absorption ability for taking full advantage of material, structure, finds through simulation analysis, and under identical material utilization amount, anti-collision effect be can be improved
30% or so.In terms of comprehensive, manufacturing cost can be effectively reduced.
Each embodiment in this specification is described in a progressive manner, the highlights of each of the examples are with other
The difference of embodiment, the same or similar parts in each embodiment may refer to each other.
The embodiment of the present invention is described with above attached drawing, but the invention is not limited to above-mentioned specific
Embodiment, the above mentioned embodiment is only schematical, rather than restrictive, those skilled in the art
Under the inspiration of the present invention, without breaking away from the scope protected by the purposes and claims of the present invention, it can also make very much
Form, all of these belong to the protection of the present invention.
Claims (10)
1. a kind of double-head arrow formula bridge pier protection guard, which is characterized in that the bridge pier protection guard includes at least one anticollision knot
Structure and for connect adjacent anti-collision structure or connect anti-collision structure and bridge pier connection structure；The anti-collision structure includes outer
Layer, which is met, hits panel, intermediate energy-absorbing support construction, internal layer support plate；The intermediate energy-absorbing support construction is by energy-absorbing unit according to bridge
The negative poisson's ratio structure that the size array of pier is formed；The energy-absorbing unit is hollow frame structure, and cross section is double-head arrow
Shape, energy-absorbing unit include constituting the first V-structure and the second V-structure by the side plate of one group of intersection respectively；The first V-type knot
Less than the apex angle of the second V-structure, the second V-structure is located inside the first V-structure the apex angle of structure, the side of two V-structures
The connection of board bottom end；Energy-absorbing unit positioned at same a line is connected by way of bottom end connects, and the energy-absorbing unit positioned at same row is logical
The form that the apex angle of the first V-structure is connect with the apex angle of the second V-structure is crossed to be connected；Positioned at outermost energy-absorbing unit and institute
It states outer layer and meets and hit panel connection, the energy-absorbing unit positioned at innermost layer connect with the internal layer support plate；The top of the anti-collision structure
Face and bottom surface are equipped with the panel of sealing, and entire anti-collision structure is made to form seal case.
2. double-head arrow formula bridge pier protection guard according to claim 1, which is characterized in that the energy-absorbing unit is with apex angle court
Outer form arrangement, the apex angle of the first V-structure of the apex angle and internal layer energy-absorbing unit of the second V-structure of outer layer energy-absorbing unit
Welding meets positioned at the apex angle of outermost energy-absorbing unit and the outer layer and hits panel welding, positioned at the energy-absorbing unit of innermost layer
Base angle and the internal layer support plate are welded.
3. double-head arrow formula bridge pier protection guard according to claim 1, which is characterized in that the top of first V-structure
Angle is acute angle, and the vertex of the second V-structure is located on the angular bisector of the first V-structure apex angle.
4. double-head arrow formula bridge pier protection guard according to claim 1, which is characterized in that first V-structure and
The both sides plate face of two V-structures is slide plate, curved slab or corrugated plating.
5. double-head arrow formula bridge pier protection guard according to claim 1, which is characterized in that the outer layer, which is met, hits the rigid of panel
Degree is not less than the rigidity of the intermediate energy-absorbing support construction, and the outer layer, which is met, hits panel and intermediate energy-absorbing unit using identical material
Matter, and outer layer meets and hits wall panel thickness of the thickness of panel not less than intermediate energy-absorbing unit.
6. double-head arrow formula bridge pier protection guard according to claim 1, which is characterized in that along direction of flow, the bridge
The cross-sectional width of pier protective device is most wide at middle part, and both ends become narrow gradually, and the intermediate energy-absorbing support construction of changeover portion is not using
Complete double-head arrow type energy-absorbing unit carries out transition.
7. double-head arrow formula bridge pier protection guard according to claim 1, which is characterized in that the bridge pier protection guard is ring
Shape structure, including two anti-collision structures and two connection structures, two anti-collision structures are positioned opposite, the both ends of two anti-collision structures
It is connected respectively by a connection structure, four are connected to form cyclic structure to surround bridge pier.
8. double-head arrow formula bridge pier protection guard according to claim 7, which is characterized in that the connection structure is steel plate,
At least row's bolt hole is arranged in the both ends of steel plate in the height direction, and the length of steel plate is determined according to the size of bridge pier；It is described anti-
The inner surface for hitting the internal layer support plate of structure is welded with connector, and the connector is similarly steel plate, sets on the steel plate of connector
There is the bolt hole being adapted to the steel plate of connection structure；The both ends of connection structure are overlapped with the connector of two anti-collision structures respectively,
And locked by bolt, to realize the connection of two anti-collision structures.
9. double-head arrow formula bridge pier protection guard according to claim 1, which is characterized in that the bridge pier protection guard is C
Shape structure, the anti-collision structure including a C-shaped, the dog-ear position of anti-collision structure using incomplete double-head arrow type energy-absorbing unit into
Row transition；The connection structure is chemical bolt；The anti-collision structure is equipped with and the matched countersunk bolts of the chemical bolt
Hole is fixedly connected by the chemical bolt with bridge pier.
10. according to the described in any item double-head arrow formula bridge pier protection guards of claim 7-9, which is characterized in that the anticollision knot
The internal layer support plate surface of structure is fixedly installed with friction plate, and the mounting means of the friction plate is welding, riveting or bolt fastening
The material of connection, friction plate uses rubber or polyethylene.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811256738.9A CN109137831B (en) | 2018-10-26 | 2018-10-26 | Double-arrow type bridge pier protection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811256738.9A CN109137831B (en) | 2018-10-26 | 2018-10-26 | Double-arrow type bridge pier protection device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109137831A true CN109137831A (en) | 2019-01-04 |
| CN109137831B CN109137831B (en) | 2023-12-12 |
Family
ID=64810215
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811256738.9A Active CN109137831B (en) | 2018-10-26 | 2018-10-26 | Double-arrow type bridge pier protection device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109137831B (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109811649A (en) * | 2019-03-18 | 2019-05-28 | 重庆城建控股(集团)有限责任公司 | A kind of anticollision auxiliary pier casing and preparation method thereof |
| CN111041979A (en) * | 2019-12-30 | 2020-04-21 | 北京工业大学 | Flexible sandwich structure pier buffer stop |
| CN111576194A (en) * | 2020-06-29 | 2020-08-25 | 中铁二院工程集团有限责任公司 | Pier buffering anti-collision device and mounting method thereof |
| CN111851369A (en) * | 2020-07-29 | 2020-10-30 | 盐城工学院 | Filling type anti-collision wall |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101775777A (en) * | 2010-03-22 | 2010-07-14 | 杨光华 | Safety protection device for bridge pier |
| CN101806041A (en) * | 2010-03-25 | 2010-08-18 | 四川省交通厅公路规划勘察设计研究院 | Rolling stone collision protective structure for bridge pier |
| CN103953005A (en) * | 2014-04-17 | 2014-07-30 | 江苏博泓新材料科技有限公司 | Bridge pier protection device |
| CN104775356A (en) * | 2015-04-01 | 2015-07-15 | 郑州大学 | Energy-absorbing pier collision avoiding clothes and building method thereof |
| KR101870279B1 (en) * | 2018-02-08 | 2018-06-22 | 한국건설기술연구원 | Guard Fence for Bridge Pier, and Constructing Method of Such Guard Fence |
-
2018
- 2018-10-26 CN CN201811256738.9A patent/CN109137831B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101775777A (en) * | 2010-03-22 | 2010-07-14 | 杨光华 | Safety protection device for bridge pier |
| CN101806041A (en) * | 2010-03-25 | 2010-08-18 | 四川省交通厅公路规划勘察设计研究院 | Rolling stone collision protective structure for bridge pier |
| CN103953005A (en) * | 2014-04-17 | 2014-07-30 | 江苏博泓新材料科技有限公司 | Bridge pier protection device |
| CN104775356A (en) * | 2015-04-01 | 2015-07-15 | 郑州大学 | Energy-absorbing pier collision avoiding clothes and building method thereof |
| KR101870279B1 (en) * | 2018-02-08 | 2018-06-22 | 한국건설기술연구원 | Guard Fence for Bridge Pier, and Constructing Method of Such Guard Fence |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109811649A (en) * | 2019-03-18 | 2019-05-28 | 重庆城建控股(集团)有限责任公司 | A kind of anticollision auxiliary pier casing and preparation method thereof |
| CN111041979A (en) * | 2019-12-30 | 2020-04-21 | 北京工业大学 | Flexible sandwich structure pier buffer stop |
| CN111576194A (en) * | 2020-06-29 | 2020-08-25 | 中铁二院工程集团有限责任公司 | Pier buffering anti-collision device and mounting method thereof |
| CN111851369A (en) * | 2020-07-29 | 2020-10-30 | 盐城工学院 | Filling type anti-collision wall |
| CN111851369B (en) * | 2020-07-29 | 2022-05-24 | 盐城工学院 | Filling type anti-collision wall |
Also Published As
| Publication number | Publication date |
|---|---|
| CN109137831B (en) | 2023-12-12 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN109137832A (en) | Bridge pier protection guard | |
| CN109137831A (en) | A kind of double-head arrow formula bridge pier protection guard | |
| CN209178927U (en) | Bridge pier protection guard | |
| CN109797688B (en) | Highway pier buffer stop | |
| WO2012152047A1 (en) | Cylindrical composite bridge anticollision device | |
| WO2012022016A1 (en) | Safety protection apparatus of elastic-plastic steel structure | |
| CN101967853B (en) | Fiber reinforce plastic (FRP)-rubber-steel composite pipe concrete structure | |
| CN207828783U (en) | A kind of bridge deck pavement structure of explosion-proof protecting against shock | |
| CN106759121A (en) | Water spray consuming type anticollision device of pier | |
| KR101226766B1 (en) | A device for coupling beam on column | |
| CN105696719A (en) | Buckling restrained energy-consuming support structure restrained by adopting GFRP angle steel | |
| CN209178926U (en) | A kind of double-head arrow formula bridge pier protection guard | |
| JP2007162221A (en) | Fender | |
| CN103966980B (en) | Steel-concrete combined bridge anti-ship collision device and anti-vessel-bridge collision | |
| CN201184000Y (en) | Damper for limb-connecting shear force wall girder-connecting energy consumption | |
| CN206428661U (en) | A kind of pier anticollision unit, anticollision guard ring and anticollision device, collision-prevention device | |
| CN211228374U (en) | Anticollision piece and anticollision structure | |
| CN108643029A (en) | A kind of energy dissipation type pier anticollision safety device being made of composite material | |
| CN201952977U (en) | Prestressed fiber reinforce plastic (FRP) rebar high-strength concrete board band | |
| CN111472264A (en) | Combined anti-explosion protection device for bridge pier | |
| CN207904753U (en) | A kind of anti-collision unit structure of composite pier anticollision device, collision-prevention device | |
| CN106836065A (en) | A kind of anticollision barrier | |
| CN110195403A (en) | A kind of antiknock be concurrently in charge of transportation function steel box girder and prepares installation method | |
| CN210049680U (en) | Mining area strengthens keeping out wind and presses down dirt wall | |
| CN204343191U (en) | Double-deck hangar tunnel shearing structure |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| CB03 | Change of inventor or designer information |
Inventor after: Yu Yu Inventor after: Zhu Xi Inventor after: Wang Jingnan Inventor after: Xiang Guo Inventor after: Cheng Tianjian Inventor after: Zhang Lei Inventor before: Zhu Xi Inventor before: Yu Yu Inventor before: Wang Jingnan Inventor before: Xiang Guo Inventor before: Cheng Tianjian Inventor before: Zhang Lei |
|
| CB03 | Change of inventor or designer information | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |