CN207498815U - A kind of bridge expanssion joint - Google Patents
A kind of bridge expanssion joint Download PDFInfo
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- CN207498815U CN207498815U CN201721414701.5U CN201721414701U CN207498815U CN 207498815 U CN207498815 U CN 207498815U CN 201721414701 U CN201721414701 U CN 201721414701U CN 207498815 U CN207498815 U CN 207498815U
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- steel plate
- waveform
- bridge
- expanssion joint
- bridge expanssion
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Abstract
The utility model discloses a kind of bridge expanssion joints.The bridge expanssion joint includes at least two adjacent bearing bottom steel plates, at least tooth form combination junction of the edges of two sheets of paper steel plate, at least a magnetic part and an at least waveform elastic telescoping member.Two adjacent bearing bottom steel plates are fixedly installed on respectively in two adjacent bridge structures.Tooth form combination junction of the edges of two sheets of paper steel plate is crossed on two adjacent bearing bottom steel plates, and connect with bearing bottom Interal fixation.Magnetic part is embedded in tooth form combination junction of the edges of two sheets of paper steel plate.Waveform elastic telescoping member is fixed on tooth form combination junction of the edges of two sheets of paper steel plate, and the bearing bottom Interal fixation adjacent with two is connect.The bottom of waveform elastic telescoping member is provided with a hard waveform component and one is formed in buffer layer on hard waveform component.Hard waveform component can mutually attract with magnetic part.Buffer layer is made of wear resistant elastic material, and surface has wear-resisting pattern.The bridge expanssion joint of the utility model can reduce vehicle and pass through the noise generated during bridge.
Description
Technical field
The utility model is related to bridge technology field more particularly to a kind of bridge expanssion joints.
Background technology
Bridge is across the outdoor permanent structure of the obstacles such as river, deep valley and built road, due to temperature Change,
The effect of the factors such as concrete shrinkage and creep and fluctuating load, creep can be generated by causing the beam-ends of bridge, to adapt to bridge
This characteristic of structure must just set the flexible of energy Free Transform in bridge structure object and between beam-ends and abutment parados
Seam, to ensure bridge floor smooth-going and play a protective role to structure.But due to the design and structure of present bridge expanssion joint
It makes unreasonable, vehicle is caused to generate very big noise when passing through bridge, the serious dry life around neighbouring resident.
Utility model content
The purpose of this utility model is in view of the above-mentioned drawbacks of the prior art, providing a kind of bridge expanssion joint.The bridge
Beam expansion joint can effectively reduce vehicle and pass through the noise generated during bridge.
The technical solution adopted in the utility model is to design a kind of bridge expanssion joint, including at least two adjacent branch
Seat bottom steel plate, at least tooth form combination junction of the edges of two sheets of paper steel plate, at least a magnetic part and an at least waveform elastic telescoping member.It is described at least
Two bearing bottom steel plates are fixedly installed on respectively in the two neighboring bridge pavement structure structure of a bridge.An at least tooth form group
Junction of the edges of two sheets of paper steel plate is closed to be crossed on at least two adjacent bearing bottom steel plate, and at least two adjacent bearing bottom steel plate consolidate
Fixed connection.An at least magnetic part is embedded in tooth form combination junction of the edges of two sheets of paper steel plate.At least a waveform elastic telescoping member is fixed for this
It is arranged on tooth form combination junction of the edges of two sheets of paper steel plate, and is connect at least two adjacent bearing bottom Interal fixation.An at least wave
Shape elastic telescopic component includes a hard waveform component and a buffer layer being formed on the property waveform configuration.The hard
Waveform component can at least a magnetic part attracts each other with this.The buffer layer is made of wear resistant elastic material, and the buffer layer
Surface has wear-resisting pattern.
The middle part of an at least waveform elastic telescoping member junction of the edges of two sheets of paper steel plate is combined with the tooth form by an at least fastening bolt
Connection.The both ends of an at least waveform elastic telescoping member are at least two adjacent with this respectively by least two fastening bolt
The steel plate anchor connection of bearing bottom.
At least two adjacent bearing bottom steel plate is anchored at least two phase using reinforcing bar or bolt casting concrete
In adjacent bridge structure.It is gap between an at least waveform elastic telescoping member and the concrete poured, adjacent flexible
Fastening bolt hole between seam and in an at least waveform elastic telescoping member is filled using flexible adhesion glue.
The material of the hard waveform component is galvanized steel plain sheet, cold-rolled steel sheet, stainless steel plate, aluminium alloy plate, rigid plastics, fibre
Tie up one of composite material etc. or two kinds and two kinds of combination of the above.
The shape of each waveform is one of trapezoidal, arch, triangular tooth etc. or two kinds and two kinds in the hard waveform component
Combination of the above, and the quantity of the waveform is 1~1000.
The wear resistant elastic material is thermosetting modified epoxy resin, thermosetting urethane resin, thermosetting modification organosilicon
Resin, thermosetting modification acrylic resin, thermoplastic elastomer (TPE), one kind in vulcanization rubber or two kinds and two kinds or more of group
It closes.The manufacturing process of the buffer layer is one kind in casting, die casting, extrusion, injection.
The wear resistant elastic material is polymer emulsion cement mortar, polymer modification concrete, thermosetting modification elasticity tree
One of fat, rubber asphalt, epoxy modified asphalt etc. or two kinds or more of combination.The manufacturing process of the buffer layer is existing for construction
Field pours.
Tooth form combination junction of the edges of two sheets of paper steel plate includes middle steel plate, left plate and right steel plate；The left plate and the right steel plate difference
The opposite sides of the middle steel plate is arranged on, and is engaged with the middle steel plate tooth form.
An at least magnetic part is embedded in the middle steel plate or is embedded in the left plate and/or the right steel plate.
An at least magnetic part is permanent magnet, and the shape of an at least magnetic part is cylinder, a diameter of 10mm~
100mm, quantity are 1~1000.
Compared with prior art, the beneficial effects of the utility model are：Using hard waveform component, deformed for telescoping member
When sufficient stiffness bearing requirements are provided；And hard waveform component combines the magnetic part being embedded in junction of the edges of two sheets of paper steel plate with tooth form and generates suction
Attached active force can not only cut down bounce or vibrating noise caused by vehicle pass-through impact, meanwhile, it can also overcome bridge expanssion joint
The warping phenomenon caused by compression.Further, which realizes seamless process using block combiner assembly, prevents road
Face rain leakage corrosion phenomenon.It meanwhile can quick segmentation replacement or sectional repair when runing repair.
Description of the drawings
Fig. 1 is the sectional view of a kind of bridge expanssion joint that the first embodiment of the utility model provides；
Fig. 2 is the splicing scheme of installation of the bridge expanssion joint of Fig. 1；
Fig. 3 is the tooth form combination junction of the edges of two sheets of paper steel plate schematic diagram of the bridge expanssion joint of Fig. 1；
Fig. 4 is the sectional view of a kind of bridge expanssion joint that the second embodiment of the utility model provides；
Fig. 5 is the tooth form combination junction of the edges of two sheets of paper steel plate schematic diagram of the bridge expanssion joint of Fig. 4.
Specific embodiment
Utility model is described in detail with reference to the accompanying drawings and examples.
As shown in Figures 1 and 2, the utility model proposes a kind of bridge expanssion joint, be arranged on a bridge pavement knot
In structure.The bridge pavement structure includes two bridge structures 101 being disposed adjacent and two pavement structures 102.Two road surfaces
Two bridge structures 101 of structure 102 and this are arranged in a one-to-one correspondence, and be laid on respectively in corresponding bridge structure 101.This two
Spacing between pavement structure 102 is more than the spacing between two bridge structures 101.Shape between two bridge structures 101
The gap that can be expanded with heat and contract with cold into one.Cavity between two pavement structures 102 is used to install the bridge expanssion joint.The bridge
The length direction at beam expansion joint is the width direction of the bridge pavement structure, and the width direction of the bridge expanssion joint is the bridge road
Vehicle pass-through direction in the structure of face.
Casting concrete 5 between the bridge expanssion joint and the bridge structure 101, and also poured between the pavement structure 102
Concrete 5 is built, so as to strengthen the bonding strength between the bridge expanssion joint and the bridge structure 101 and the pavement structure 102.
The bridge expanssion joint includes at least two adjacent bearing bottom steel plates 1, at least one tooth form combines junction of the edges of two sheets of paper steel plate 2, extremely
A few magnetic part 3 and an at least waveform elastic telescoping member 4.
At least two adjacent bearing bottom steel plate 1 is anchored at least two phase using reinforcing bar or bolt casting concrete
In adjacent bridge structure 101.Each bearing bottom steel plate 1 using with after the reinforcement welding of implant infrastructure, casting concrete anchoring；Or
Bolt anchoring is implanted into using concrete structure.Specifically, there are one horizontal anchoring structure steel for welding on each bearing bottom steel plate 1
Muscle 11 and a vertical anchoring structure reinforcing bar 12.The horizontal anchoring structure reinforcing bar 11 is inserted into the bearing bottom steel plate 1 and is tied with the road surface
In concrete between structure 102, to reinforce the bonding strength of the bearing bottom steel plate 1 and surrounding concrete.This is anchored vertically
Distributing bar 12 is inserted into after the concrete by 1 lower section of bearing bottom steel plate in the bridge structure 101, to reinforce the bearing bottom
Steel plate 1 and the bonding strength of the bridge structure 101.
Each bearing bottom steel plate 1 is parallel with the top surface of corresponding bridge structure 101 so that multiple bearing bottom steel plate
1 is located at horizontality.
Tooth form combination junction of the edges of two sheets of paper steel plate 2 is crossed on this two adjacent bearing bottom steel plates 1, and with two adjacent branch
Seat bottom steel plate 1 is fixedly connected.With reference to shown in Fig. 3, which combines junction of the edges of two sheets of paper steel plate 2 by odd number（Such as 3）Steel plate composition,
Including middle steel plate 21, left plate 22 and right steel plate 23.The left plate 22 and the right steel plate 23 are separately positioned on the middle steel plate
21 opposite sides, and be engaged with 21 tooth form of middle steel plate.The left plate 22 is with the right steel plate 23 using at least two fastenings
Bolt 24 is connect at least two adjacent bearing bottom steel plate 1.In the present embodiment, 22 upper fastening bolt 24 of left plate
Quantity is 2, and the quantity of right 23 upper fastening bolt 24 of steel plate is 2.
The magnetic part 3 is set in tooth form combination junction of the edges of two sheets of paper steel plate 2 and arranged in arrays.In the present embodiment, the magnetism
Part 3 is embedded in the left plate 22 and the right steel plate 23.The magnetic part 3 is permanent magnet, and is ndfeb magnet, and shape is cylinder
Shape, a diameter of 10mm~100mm, quantity are 1~1000.
The waveform elastic telescoping member 4 is located between two pavement structures 102, the main stress for the bridge expanssion joint
Component.The waveform elastic telescoping member 4 is fixed on tooth form combination junction of the edges of two sheets of paper steel plate 2, and at least two adjacent with this
Bearing bottom steel plate 1 is fixedly connected.Specifically, the middle part of the waveform elastic telescoping member 4 is using an at least fastening bolt 43 and is somebody's turn to do
2 anchor connection of tooth form combination junction of the edges of two sheets of paper steel plate, the both ends of the waveform elastic telescoping member 4 are distinguished using at least two fastening bolts 44
With at least two adjacent 1 anchor connection of bearing bottom steel plate.Every segment length 0.5~2.0 of the waveform elastic telescoping member 4
Rice.
The waveform elastic telescoping member 4 includes a hard waveform component 41 and one is formed in the hard waveform component 41
On buffer layer 42.The hard waveform component 41 provides sufficient stiffness and satisfaction when being deformed for the waveform elastic telescoping member 4
Compression load requirement.The hard waveform component 41 is pressed on tooth form combination junction of the edges of two sheets of paper steel plate 2, and can be with this at least including one
The connecting plate that one magnetic part 3 attracts each other so that adsorption is generated between the hard waveform component 41 and the magnetic part 3,
The warping phenomenon generated when not only the bridge expanssion joint can be overcome to be compressed in this way, while can cut down when vehicle pass-through impacts and be produced
Raw bounce or vibrating noise.If it is appreciated that the hard waveform component 41 inherently by can be attracting with the magnetic part 3
The material drawn is made, then the connecting plate can also save.
Preferably, the material of the hard waveform component 41 be galvanized steel plain sheet, it is cold-rolled steel sheet, stainless steel plate, aluminium alloy plate, hard
One of matter plastics, fibrous composite etc. or two kinds and two kinds of combination of the above.
Preferably, the shape of each waveform is one of trapezoidal, arch, triangular tooth etc. or two in the hard waveform component 41
Kind and two kinds of combination of the above, the quantity of the waveform is 1~1000.
The buffer layer 42 is formed by pouring wear resistant elastic material on the hard waveform component 41.The wear-resistant material can
Meet that the required cryogenic tensile of the bridge expanssion joint is not brittle, high temperature compressed does not soften and the requirement of high rebound.The buffer layer
42 surface has wear-resisting pattern（Such as the wear-resisting curve of tyre type decorative pattern）, can not only fully reduce tire and impact the bridge and stretch
Generated noise and impact failure power during contracting seam, and the energy homogeneous deformation when flexible, keep the waveform elastic telescoping member 4
It is smooth, improve the durability of the bridge expanssion joint.
Preferably, the buffer layer 42 when factory manufactures using modelling into the wear-resisting curve of tyre type decorative pattern, applying
Diamond dust is sowed using bonding during work cast in situs.
Preferably, which is thermosetting modified epoxy resin, thermosetting urethane resin, thermosetting modification
Organic siliconresin, thermosetting modification acrylic resin, thermoplastic elastomer (TPE)（Containing phenylethylene, olefines, dienes, vinyl chloride
Class, polyurethanes）, one of vulcanization rubber etc. or two kinds and two kinds of combination of the above, the manufacturing process of the buffer layer 42 is pours
One kind in casting, die casting, extrusion, injection.
Preferably, which is polymer emulsion cement mortar, polymer modification concrete, thermosetting modification
One or two or more kinds of combinations in elastic resin, rubber asphalt, epoxy modified asphalt, the manufacturing process of the buffer layer 42
It is poured for construction site.
Gap, two adjacent waveform bullets between an at least waveform elastic telescoping member 4 and the concrete poured 5
The hole of combined and spliced seam 45 between property telescoping member 4 and the fastening bolt 43,44 in an at least waveform elastic telescoping member 4
Hole is filled using flexible adhesion glue 6, and overall performance is good, and anchoring is firm, and the waveform elastic telescoping member 4 is avoided to loosen very
To coming off, ensure that traffic safety is reliable；It can also realize seamless process simultaneously, improve the waterproof ability of the bridge expanssion joint.
Preferably, the flexible adhesion glue 6 is soft for thermosetting urethane class adhesive or thermosetting property increasing（Or toughening）Modified ring
Oxygen class adhesive.
As shown in Figures 4 and 5, a kind of bridge expanssion joint provided, the second embodiment are provided for the utility model second
Bridge expanssion joint and the structure of the first embodiment it is essentially identical, including at least two adjacent bearing bottom steel plates 21, extremely
Few tooth form combination junction of the edges of two sheets of paper steel plate 22, at least one magnetic part 23 and an at least waveform elastic telescoping member 24；Tooth form combination is ridden
Stitch the left plate 222 of steel plate 22 and the right steel plate 223 that at least two fastening bolts 224 are respectively adopted is at least two adjacent with this
Bearing bottom steel plate 21 connect；The waveform elastic telescoping member 24 includes hard waveform component 241 and is formed in the hard waveform
Buffer layer 242 on component 241；The hard waveform component 241 is pressed on tooth form combination junction of the edges of two sheets of paper steel plate 22, and can be with the magnetism
Part 23 attracts each other；The middle part of the hard waveform component 241 junction of the edges of two sheets of paper steel plate is combined with the tooth form using an at least fastening bolt 243
22 connections, both ends are anchored using at least two fastening bolts 244 at least two bearing bottom steel plate 21 being disposed adjacent respectively
Connection；Casting concrete 25 between the bridge expanssion joint and the pavement structure and bridge structure；It is welded on the bearing bottom steel plate 21
Horizontal anchoring structure reinforcing bar 211 be inserted into the concrete 25 in.
The bridge expanssion joint of the second embodiment with this first implement bridge expanssion joint difference lies in：The waveform elastic
The bottom insertion of telescoping member 24 is installed in the bearing bottom steel plate 21, and tamp its gap using binding agent；The magnetic part 23
In the middle steel plate 221 in tooth form combination junction of the edges of two sheets of paper steel plate 22.
Compared with prior art, the bridge expanssion joint of the utility model uses the hard waveform component as the waveform elastic
When telescoping member deforms, sufficient stiffness is provided and meets compression load requirement, by being poured in the hard waveform member upper
Wear resistant elastic material, meets that cryogenic tensile is not brittle, high temperature compressed does not soften and high rebound requirement.High score is used relative to foreign countries
Sub- polymer modified asphalt expansion joints without seals system, overcome track weight deformation, cracking, bonding interface destroy, gather materials come off,
Pitch elapse bellding and it is rugged the shortcomings of.
Further, the bridge expanssion joint of the utility model designs wear-resisting pattern, no on the surface of the wear resistant elastic material
The noise that generates when being only capable of fully reducing tire impact expansion joint, and the energy homogeneous deformation when flexible, keep the waveform elastic
Telescoping member it is smooth, improve the durability of the bridge expanssion joint；In the lower part of the waveform expansion and contraction component, setting tooth form, which combines, rides
Steel plate is stitched, stage casing steel plate is connected by screw bolts with the waveform elastic telescoping member, magnetic part is provided in the steel plate of both ends and is used
Bolt is anchored in the rest base steel plate, when the waveform elastic telescoping member is compressed in vehicle pass-through or malformation, due to magnetic
Property part suction-operated, reduce the waveform elastic telescoping member arch deformation while reduce vibrating noise again；The bearing bottom
Steel plate is combined using reinforcing bar or bolt with the bridge structure, which is fixed by bolts with bearing bottom steel plate；
And the waveform elastic telescoping member and the concrete structure gap, combined and spliced between adjacent two bridge expanssion joints that pours
The hole of the fastening bolt of seam and the waveform elastic telescoping member carries out closing bonding, overall performance using flexible adhesion glue
Good, anchoring is firm, and the waveform elastic telescoping member is avoided to loosen and is even come off, and ensures that traffic safety is reliable.
Further, the bearing bottom steel plate of the bridge expanssion joint of the utility model, tooth form combination junction of the edges of two sheets of paper steel plate and waveform bullet
Property telescoping member carry out segmentation factory manufacture, field combinations installation, the hard waveform component and the wear resistant elastic material it is compound by
Power, the magnetic part restrained deformation and vibration, bolt and flexible adhesion anchoring, cost performance is good, have low-temperature flexibility and weight at a high speed
Deformation resilience characteristic, while meet the requirement of later stage operation maintenance quick-replaceable or repairing.
Further, the waveform elastic telescoping member needed for the bridge expanssion joint of the utility model takes manufacturer's standard metaplasia
Production, stable quality is reliable and also operation abrasion after can live sectional repair or section displacing, can be widely used in highway and municipal administration
Newly-built or existing highway bridge the maintenance and renovation of bridge.
Above-described embodiment is merely to illustrate specific embodiment of the present utility model.It should be pointed out that for this field
Those of ordinary skill for, without departing from the concept of the premise utility, several deformations and variation can also be made, this
A little deformations and variation should all belong to the scope of protection of the utility model.
Claims (10)
1. a kind of bridge expanssion joint, including at least two adjacent bearing bottom steel plates, at least two bearings bottom steel plate point
It is not fixedly installed in the two neighboring bridge structure of a bridge pavement structure, which is characterized in that the bridge expanssion joint further includes
At least tooth form combination junction of the edges of two sheets of paper steel plate, at least a magnetic part and an at least waveform elastic telescoping member；An at least tooth form combines
Junction of the edges of two sheets of paper steel plate is crossed on at least two adjacent bearing bottom steel plate, and at least two adjacent bearing bottom Interal fixation
Connection；An at least magnetic part is embedded in tooth form combination junction of the edges of two sheets of paper steel plate；At least waveform elastic telescoping member fixation is set
It puts on tooth form combination junction of the edges of two sheets of paper steel plate, and is connect at least two adjacent bearing bottom Interal fixation；An at least waveform
Elastic telescopic component includes a hard waveform component and a buffer layer being formed on the hard waveform component；The hard wave
Shape component can at least a magnetic part attracts each other with this, which is made of wear resistant elastic material, and the table of the buffer layer
Face has wear-resisting pattern.
2. bridge expanssion joint as described in claim 1, which is characterized in that the middle part of an at least waveform elastic telescoping member leads to
It crosses an at least fastening bolt and junction of the edges of two sheets of paper steel plate anchor connection is combined with the tooth form, the both ends of an at least waveform elastic telescoping member lead to
Cross at least two fastening bolts respectively at least two adjacent bearing bottom steel plate anchor connection.
3. bridge expanssion joint as claimed in claim 2, which is characterized in that at least two adjacent bearing bottom steel plate uses steel
Muscle or bolt casting concrete are anchored in at least two adjacent bridge structure, an at least waveform elastic telescoping member with
Combined and spliced seam between gap, two adjacent waveform elastic telescoping members between the concrete poured and this at least one
The hole of fastening bolt in waveform elastic telescoping member is filled using flexible adhesion glue.
4. bridge expanssion joint as described in claim 1, which is characterized in that the material of the hard waveform component for galvanized steel plain sheet,
One of cold-rolled steel sheet, stainless steel plate, aluminium alloy plate, rigid plastics, fibrous composite etc. or two kinds and two kinds of combination of the above.
5. bridge expanssion joint as described in claim 1, which is characterized in that the shape of each waveform is in the hard waveform component
One of trapezoidal, arch, triangular tooth etc. or two kinds and two kinds of combination of the above, and the quantity of the waveform is 1~1000.
6. bridge expanssion joint as described in claim 1, which is characterized in that the wear resistant elastic material is thermosetting modified epoxy tree
Fat, thermosetting urethane resin, thermosetting modification organic siliconresin, thermosetting modification acrylic resin, thermoplastic elastomer (TPE), sulphur
Change one kind in rubber or two kinds and two kinds or more of combination.
7. bridge expanssion joint as described in claim 1, which is characterized in that the wear resistant elastic material is polymer emulsion cement bonded sand
One of slurry, polymer modification concrete, thermosetting modification elastic resin, rubber asphalt, epoxy modified asphalt etc. or two kinds or more
Combination.
8. bridge expanssion joint as described in claim 1, which is characterized in that tooth form combination junction of the edges of two sheets of paper steel plate include middle steel plate,
Left plate and right steel plate；The left plate and the right steel plate are separately positioned on the opposite sides of the middle steel plate, and with the intermediate steel
Plate tooth form is engaged.
9. bridge expanssion joint as claimed in claim 8 a, which is characterized in that at least magnetic part is embedded in the middle steel plate for this
It is interior or be embedded in the left plate and/or the right steel plate.
10. bridge expanssion joint as claimed in claim 8, which is characterized in that an at least magnetic part is permanent magnet, this is at least
The shape of one magnetic part is cylinder, and a diameter of 10mm~100mm, quantity is 1~1000.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721414701.5U CN207498815U (en) | 2017-10-30 | 2017-10-30 | A kind of bridge expanssion joint |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721414701.5U CN207498815U (en) | 2017-10-30 | 2017-10-30 | A kind of bridge expanssion joint |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207498815U true CN207498815U (en) | 2018-06-15 |
Family
ID=62501965
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721414701.5U Active CN207498815U (en) | 2017-10-30 | 2017-10-30 | A kind of bridge expanssion joint |
Country Status (1)
| Country | Link |
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| CN (1) | CN207498815U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107815963A (en) * | 2017-10-30 | 2018-03-20 | 深圳市威士邦建筑新材料科技有限公司 | A kind of bridge expanssion joint |
| CN108824184A (en) * | 2018-08-21 | 2018-11-16 | 长沙理工大学 | Height-adjustable UHPC bridge extension joint |
-
2017
- 2017-10-30 CN CN201721414701.5U patent/CN207498815U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107815963A (en) * | 2017-10-30 | 2018-03-20 | 深圳市威士邦建筑新材料科技有限公司 | A kind of bridge expanssion joint |
| CN107815963B (en) * | 2017-10-30 | 2023-09-15 | 深圳市威士邦建筑新材料科技有限公司 | Bridge expansion joint |
| CN108824184A (en) * | 2018-08-21 | 2018-11-16 | 长沙理工大学 | Height-adjustable UHPC bridge extension joint |
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