CN104358209B - A kind of interdigitated electrode structure damping conjugates bridge extension joint - Google Patents
A kind of interdigitated electrode structure damping conjugates bridge extension joint Download PDFInfo
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- CN104358209B CN104358209B CN201410679334.6A CN201410679334A CN104358209B CN 104358209 B CN104358209 B CN 104358209B CN 201410679334 A CN201410679334 A CN 201410679334A CN 104358209 B CN104358209 B CN 104358209B
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- damping
- bridge
- bolt
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- plate
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- 238000013016 damping Methods 0.000 title claims abstract description 94
- 238000006073 displacement reaction Methods 0.000 claims abstract description 69
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 24
- 239000010959 steel Substances 0.000 claims abstract description 24
- 239000000463 material Substances 0.000 claims abstract description 19
- 208000002925 dental caries Diseases 0.000 claims abstract description 5
- 229920002635 polyurethane Polymers 0.000 claims description 6
- 239000004814 polyurethane Substances 0.000 claims description 6
- 229910001220 stainless steel Inorganic materials 0.000 claims description 4
- 239000010935 stainless steel Substances 0.000 claims description 4
- 229910021529 ammonia Inorganic materials 0.000 claims 1
- QGZKDVFQNNGYKY-UHFFFAOYSA-N ammonia Natural products N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 claims 1
- -1 poly- ammonia Ester Chemical class 0.000 claims 1
- 230000006378 damage Effects 0.000 abstract description 9
- 238000009434 installation Methods 0.000 abstract description 7
- 230000035939 shock Effects 0.000 abstract description 3
- 230000000694 effects Effects 0.000 description 8
- 230000008859 change Effects 0.000 description 4
- 230000007704 transition Effects 0.000 description 4
- 230000002929 anti-fatigue Effects 0.000 description 3
- JOYRKODLDBILNP-UHFFFAOYSA-N Ethyl urethane Chemical compound CCOC(N)=O JOYRKODLDBILNP-UHFFFAOYSA-N 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 230000007797 corrosion Effects 0.000 description 2
- 238000005260 corrosion Methods 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- 230000005856 abnormality Effects 0.000 description 1
- 238000005299 abrasion Methods 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 230000003321 amplification Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000009792 diffusion process Methods 0.000 description 1
- 230000002708 enhancing effect Effects 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 230000000116 mitigating effect Effects 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 210000003205 muscle Anatomy 0.000 description 1
- 238000003199 nucleic acid amplification method Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000008439 repair process Effects 0.000 description 1
- 230000007480 spreading Effects 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D19/00—Structural or constructional details of bridges
- E01D19/06—Arrangement, construction or bridging of expansion joints
Landscapes
- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Bridges Or Land Bridges (AREA)
Abstract
The present invention relates to interdigitated electrode structure damping to conjugate bridge extension joint, including fixed broach plate, across seam fishback, damping conjugates component and baffle plate, component is conjugated by the damping under it across seam fishback and embedded bar is connected with bridge beam body one, fixed broach plate is fixedly connected by fixing bolt and embedded bar with bridge beam body two, damping displacement component includes damping displacement case, two hexagon cavitys are provided with damping displacement case, a bolt is both provided with each hexagon cavity, one end that bolt is located in hexagon cavity carries hexagon bolt head corresponding with the shape of hexagon cavity, flexible material is filled with hexagon cavity, beam is provided with the upper surface of damping displacement case, baffle plate includes steel plate and " V " steel bar welded together with steel plate.The device is easy for installation, time saving and energy saving；Meanwhile there is good shock resistance, reduce the damage to bridge.
Description
Technical field
The invention belongs to bridge construction technology field, is related to a kind of Bridge Seismic mechanism, more particularly to a kind of interdigitated electrode structure subtracts
Shake displacement bridge extension joint.
Background technology
Bridge extension joint refers to meet the requirement of bridge floor deformation, and between bridge both ends, between beam-ends and abutment
Or the retractor device set by the articulated position of bridge.Bridge extension joint is the important component of bridge, retractor device
The quality of performance, directly influence driving safety and bridge road it is smooth.
At present, highway in China bridge main will use shaped steel modular expansion device and common fishback retractor device.In reality
Border is in use, fragile, influence because self structure defect and installation quality are difficult to control, be present in both the above retractor device
The problems such as girder construction, road-ability are poor, service life is short, difficult in maintenance.Wherein, traditional fishback class retractor device
Fishback can be tilted with beam-ends corner, and anchor bolt can be produced after vehicle spreading and pulls phenomena such as being damaged with beam body concrete.
The defects of in order to overcome existing highway bridge retractor device, also there is designer to use and setting damping to become under fishback is stitched
Hyte part realizes the damping of bridge.It is good in order to realize but this damping displacement component only has a damping displacement case
Damping effect, it is necessary to multiple dampings displacement components be installed, so as to cause the installation effectiveness of retractor device low；Meanwhile each subtract
It is isolated setting between shake displacement case, so as to cause its stability and anti-slip ability weaker；In addition, this damping becomes hyte
Part directly contacts with bridge beam body, causes to interfere with each other between damping displacement component and bridge beam body, have impact on damping change
The damping effect of hyte part；Meanwhile there is no baffle plate between seam fishback and bridge beam body, cause across seam fishback and Bridge Beam
There is also interference between body, add across damage of the seam fishback to beam body and the damage across seam fishback.
Therefore, there is an urgent need to a kind of new bridge extension joint at present.
The content of the invention
It is contemplated that overcome the deficiencies in the prior art, there is provided a kind of interdigitated electrode structure damping conjugates bridge extension joint, the dress
It is easy for installation, time saving and energy saving to put；Meanwhile there is good shock resistance, reduce the damage to bridge.
Therefore, the present invention provides following technical scheme：A kind of interdigitated electrode structure damping conjugates bridge extension joint, and it includes fixing
Fishback, across seam fishback, damping displacement component and baffle plate, the fixed broach plate with it is described mutual across the broach for stitching fishback
Intersect and there is gap, it is described across seam fishback across the gap between bridge beam body one and bridge beam body two and by positioned at it
Under the damping displacement component and embedded bar be connected with the bridge beam body one, the fixed broach plate passes through fixing bolt
It is fixedly connected with embedded bar with the bridge beam body two, the damping displacement component includes damping displacement case, and the damping becomes
Two hexagon cavitys are provided with the case of position, a bolt, the bolt are both provided with each hexagon cavity
One end be located in the hexagon cavity, the other end is located at outside the hexagon cavity, and the bolt is located at institute
State one end in hexagon cavity and carry hexagon bolt head corresponding with the shape of the hexagon cavity, described six
Flexible material is filled with prismatic cavity, is provided with beam on the upper surface of the damping displacement case, the baffle plate includes
Steel plate and weld together " V " steel bar with the steel plate, " V " steel bar is cast in the bridge beam body one, described
Steel plate is arranged on the bridge beam body one and damping displacement component and described between fishback is stitched.
Further, wherein, the damping displacement case and bolt are made up of hard material.
Further, wherein, stainless steel plate and flexible mat board are installed under the fixed broach plate.
Yet further, wherein, it is poly- that the flexible material, which fills up the hexagon cavity and the flexible material,
Urethane.
Again further, wherein, the beam by polyurethane into.
In addition, the outside of the damping displacement case has two symmetrical projective structures, the projective structure and the steel plate
Connected with embedded bar with the position of the fixation damping displacement case.
Further, wherein, the fixed broach plate is with the broach Front-end Design across seam fishback into inclined-plane.
Compared with existing bridge extension joint, interdigitated electrode structure damping of the invention displacement bridge extension joint has and had as follows
Beneficial technique effect：
1st, bridge floor smoothly transition can be realized, there are damping displacement multiple functions.Beam body length travel can be met, adapt to beam body
Laterally, vertical and corner displacement, has good a durability and fatigue resistance, mitigation vehicle by when high frequency tamping to device
Abrasion, prevents phenomena such as bolt is pulled and damaged beam body concrete, and service life extends.Also, it is easily installed, checks, ties up
Repair and change, there is good versatility and economy.
2nd, the retractor device and beam body are flexibly connected, and load impulsive force conjugates component absorption by damping and transmitted, maximum
Limit alleviates beam body vibration, destruction of the deformation to retractor device, anti-fatigue ability enhancing, while can control noise to both sides
Amplification and diffusion, reduce the influence to periphery.
3rd, can be tilted when vehicle passes through across seam fishback with beam-ends corner, it is described to be combed across seam due to the presence of baffle plate
Tooth plate is not directly contacted with beam body concrete, therefore will not produce the destruction to bridge concrete layer.
4th, it is bonded using flexible material, such as polyurethane, good guarantee fishback with beam body, there is good damping
Performance；Meanwhile by using polyurethane so that the product has antifatigue, corrosion-resistant, impact resistance, and intensity is high, and pliability is good etc.
Feature.
5th, each damping displacement component has two cavitys and bolt, reduces the number of damping displacement component, so that
It is more convenient to construct, save trouble and labor, and anticreep ability is stronger.
6th, damping displacement component is provided with interior hexagon cavity, and inside cavity is full of flexible material, then the six of fitted bolt
Angular bolt head, the rotation and tilting for avoiding bolt pull, service life length, more economical.
7th, by setting counterbore in fishback is stitched, especially hexagonal counterbore, help to prevent the nut of bolt
Release.
Brief description of the drawings
Fig. 1 is the top view of the interdigitated electrode structure damping displacement bridge extension joint of the present invention.
Fig. 2 is Fig. 1 A-A sectional views.
Fig. 3 is the top view of damping displacement component..
Fig. 4 is Fig. 3 A-A sectional views.
Fig. 5 is Fig. 4 C direction views.
Fig. 6 is the schematic diagram of baffle plate.
Embodiment
The embodiment of the present invention is described in detail below in conjunction with the accompanying drawings, the content of embodiment is not as to this
The limitation of the protection domain of invention.
The present invention relates to a kind of interdigitated electrode structure damping to conjugate bridge extension joint, and the device is easy for installation, time saving and energy saving；Together
When, there is good shock resistance, reduce the damage to bridge.
As illustrated in fig. 1 and 2, interdigitated electrode structure damping of the invention displacement bridge extension joint includes fixed broach plate 3, combed across seam
Tooth plate 4, damping displacement component 5 and baffle plate 6.Wherein, the fixed broach plate 3 is mutually handed over the broach across seam fishback 4
Pitch and there is gap.Preferably, the fixed broach plate 3 with the broach Front-end Design across seam fishback 4 into inclined-plane.This
Sample, the rubbish of broach seam crossing can be shoveled out, be taken away by wind-force and vehicle, keep the relative clean in gap, and reduced flexible
Frictional resistance.Meanwhile the design on inclined-plane also allows broach when occurring damaging or abnormality upwarps, buffer wheel transition can be allowed, keep away
Exempt from the generation of danger.The fixed broach plate 3 is tapered with the broach across seam fishback 4 from root to top, in three
Angular rock-steady structure.The also corresponding gradual change of the matching space width of the other end, while transition arc is set in broach root.
So, the wide steep bank shape contact surface of ordinary constitution is greatly reduced to great vibrations and the sound caused by the tire of rapid transition.
Therefore, wheel by when there is no a difference of height and lash space, driving smooth-going, comfortableness is good.
When pouring into a mould bridge beam body, the embedded bar 8 for connecting the retractor device is provided with.It is described across seam fishback 4 across
The gap crossed between bridge beam body 1 and bridge beam body 22 simultaneously conjugates component 5 and pre-buried steel by the damping under it
Muscle 8 is connected with the bridge beam body 1.The fixed broach plate 4 passes through fixing bolt 7 and embedded bar 8 and the Bridge Beam
Body 22 is fixedly connected.Preferably, the upper end of the fixing bolt 7 is provided with screw thread, and the fixed broach plate 4 is provided with and the spiral shell
The screw of line matching so that the fixing bolt 7 is connected with the fixed broach plate 4 by the screw thread and screw.It is described solid
The lower end for determining bolt 7 is connected with the embedded bar 8 in the bridge beam body 22, such as welds together.
In addition, in the present invention, it is preferred to, stainless steel plate 9 and flexible mat board are installed under the fixed broach plate 3.Its
In, the stainless steel plate 9 act as reducing the frictional resistance slided across seam fishback.The soft backing plate makes described solid
Determining nose of comb, there is good damping to eliminate noise function.
As shown in Figures 3 and 4, the damping displacement component 5 includes damping displacement case 5.1.Set in the damping displacement case 5.1
It is equipped with two cavitys.As shown in figure 5, the cavity is hexagon cavity 5.6.In each hexagon cavity 5.6
It is provided with a bolt 5.2.One end of the bolt 5.2 is located in the hexagon cavity 5.6, and the other end is located at described six
Outside prismatic cavity 5.6, and one end in the hexagon cavity 5.6 of the bolt 5.2 carries and six rib
The corresponding hexagon bolt head 5.7 of shape of cylindrical chamber 5.6.Because damping displacement component 5 is provided with two six ribs
Cylindrical chamber 5.6, compared with being provided with the damping displacement component of a cavity, identical damping effect is realized, it is required
The quantity of damping displacement component reduces half, therefore, has saved the time of more than half when mounted.For example, need before
The independent damping displacement component of installation 10, the independent damping displacement component of installation 5 is now only needed, therefore, is previously required to
Install one day, now only needing can install half a day.Secondly as two bolts of each damping displacement component are carried out
Connection, therefore so that the steadiness and anti-slip ability of whole damping displacement component are also increased exponentially.Furthermore
Because the cavity in damping displacement case 5.1 is hexagon, its six rib in the cavity with the bolt 5.2
The shape of pillar-bolt first 5.7 is adapted, therefore limits rotation of the bolt 5.2 in the cavity, is avoided described
The rotation and tilting of bolt 5.2 pull so that its service life is longer, more economically.
Flexible material 5.4 is filled with the hexagon cavity 5.6.By setting the flexible material 5.4, Ke Yiyou
Effect absorbs vibrations when vehicle passes through.Preferably, the flexible material 5.4 fills up the hexagon cavity 5.6, so that
It is more preferable to obtain its damping effect.Beam 5.5 is provided with the upper surface of the damping displacement case 5.1.Preferably, the beam
5.5 by polyurethane into.By setting the beam 5.5, it is possible to reduce shake the influence that case is conjugated to damping.It is in addition, excellent
Selection of land, the damping displacement case 5.1 and bolt 5.2 are made up of hard material, such as steel, so that it has good branch
Support effect and tensile strength.It is highly preferred that the flexible material 5.4 is polyurethane.It is poly- by the flexible material 5.4
Urethane, damping displacement component can be caused to have the characteristics that antifatigue, corrosion-resistant, impact resistance, intensity, pliability are good.
In the present invention, it is preferred to the upper end of the bolt 5.2 is provided with screw thread, it is described across seam fishback 4 be provided with it is described
The screw of screw thread matching.The bolt 5.2 is connected with described across seam fishback 4 by the screw thread, screw.Meanwhile the spiral shell
Bolt 5.2 conjugates the aperture of case 5.1 upper end through in the hexagon cavity 5.6 by the damping, so as to will be described across seam
Fishback 4 links together with damping displacement component 5.It is highly preferred that described be provided with counterbore across stitching in fishback 4.Institute
It can be circular hole to state counterbore, counterbore can also be processed as hexagon.Hexagonal benefit is that it can be with the bolt 5.2
Nut perfect matching, so as to effectively prevent the nut of the bolt 5.2 from releasing.
In addition, in the present invention, it is preferred to, the outside of the damping displacement case 5.1 has two symmetrical projective structures
5.3.The projective structure 5.3 is connected with the embedded bar 8 in the steel plate 6.1 and the bridge beam body 1, for example, welding
Together, so as to the position of the fixed damping displacement case 5.1.
As shown in fig. 6, the baffle plate 6 includes steel plate 6.1 and " V " steel bar welded together with the steel plate 6.1
6.2.As shown in Fig. 2 wherein, " V " steel bar 6.2 is cast in the bridge beam body 1, and the steel plate 6.1 is arranged on
The bridge beam body 1 and it is described across seam fishback 4 and the damping displacement component 5 between.It is described across seam when vehicle passes through
Fishback 4 can tilt with beam-ends corner, described to be not directly contacted with the bridge across seam fishback 4 due to the presence of the baffle plate 6
Beam beam body 1, therefore the destruction of the concrete layer to the bridge beam body 1 will not be produced.Simultaneously as the baffle plate 6
In the presence of, damping displacement, component 5 is not also direct is contacted with the bridge beam body 1, so that damping displacement component 5
It will not also produce and interfere with each other between the bridge beam body 1, so as to not interfere with the damping of the damping displacement component 5
Effect.
In the interdigitated electrode structure damping displacement bridge extension joint of the present invention, broach board component across seam fishback with fixed by combing
Tooth plate forms, across seam fishback directly across beam-ends gap to opposite side, when longitudinal direction displacement occurs for pontic, across seam fishback with
Carry out displacement, with fixed broach plate carry out broach intersects stretch.General beam-ends gap is equal to stroke.Across stitching under fishback
Damping displacement component is installed, baffle plate is designed with across seam end, the baffle plate isolation beam body with across seam fishback, make across seam fishback with
Beam body reduces the damage to the concrete layer of beam body without interference.Meanwhile damping displacement component conjugates case by damping, flexible material,
Bolt is formed.Damping displacement component is arranged under seam fishback, and beam body embedded bar welds and is partly embedded into concrete
Among.When beam body occurred level and horizontal corner, the bolt connected across seam fishback conjugates free displacement in case in damping, full
The needs of the various displacements of foot.High frequency tamping caused by vehicle process and spring are inhaled by the flexible material in damping displacement case
Receive and transmit.Damping displacement case has interior hexagon cavity, so limits the bolt with turret head and turns in cavity
It is dynamic, it can effectively prevent the tilting of bolt and pull.
The content of embodiment be for the ease of skilled artisan understands that and using the present invention and describe, and
The restriction to present invention protection content is not formed.Those skilled in the art, can be to this after present disclosure has been read
Invention is suitably changed.The protection content of the present invention is defined by the content of claim.The reality of claim is not being departed from
In the case of matter content and protection domain, various modifications, change and replacement for being carried out to the present invention etc. are all in the protection of the present invention
Within the scope of.
Claims (5)
1. a kind of interdigitated electrode structure damping conjugates bridge extension joint, it includes fixed broach plate (3), become across seam fishback (4), damping
Hyte part (5) and baffle plate (6), the fixed broach plate (3) intersect with the broach across seam fishback (4) and have a seam
Gap, it is described across seam fishback (4) across the gap between bridge beam body one (1) and bridge beam body two (2) and by under it
The damping displacement component (5) and embedded bar (8) be connected with the bridge beam body one (1), the fixed broach plate (3) lead to
Cross fixing bolt (7) and embedded bar (8) is fixedly connected with the bridge beam body two (2), the damping displacement component (5) includes
Damping displacement case (5.1), the damping displacement case (5.1) is interior to be provided with two hexagon cavitys (5.6), each six rib
A bolt (5.2) is both provided with cylindrical chamber (5.6), one end of the bolt (5.2) is located at the hexagon cavity
(5.6) in, the other end is located at the hexagon cavity (5.6) outside, and the bolt (5.2) is located at the hexagon chamber
One end in body (5.6) carries hexagon bolt head (5.7) corresponding with the shape of the hexagon cavity (5.6), institute
State and flexible material (5.4) is filled with hexagon cavity (5.6), be provided with the upper surface of the damping displacement case (5.1)
Beam (5.5), the baffle plate (6) include steel plate (6.1) and " V " steel bar welded together with the steel plate (6.1)
(6.2), described " V " steel bar (6.2) is cast in the bridge beam body one (1), and the steel plate (6.1) is arranged on the bridge
Beam body one (1) and described between seam fishback (4) and damping displacement component (5), the damping displacement case (5.1) outside
Side has two symmetrical projective structures (5.3), and the projective structure (5.3) connects with the steel plate (6.1) and embedded bar (8)
Connect with the position of the fixation damping displacement case (5.1), the fixed broach plate (3) and the broach across seam fishback (4)
Front-end Design is into inclined-plane.
2. interdigitated electrode structure damping as claimed in claim 1 conjugates bridge extension joint, wherein, the damping displacement case (5.1) and
Bolt (5.2) is made up of hard material.
3. interdigitated electrode structure damping as claimed in claim 2 conjugates bridge extension joint, wherein, pacify under the fixed broach plate (3)
Equipped with stainless steel plate (9) and flexible mat board.
4. interdigitated electrode structure damping as claimed in claim 1 conjugates bridge extension joint, wherein, the flexible material (5.4) is filled up
The hexagon cavity (5.6) and the flexible material (5.4) are polyurethane.
5. interdigitated electrode structure damping as claimed in claim 2 conjugates bridge extension joint, wherein, the beam (5.5) is by poly- ammonia
Ester is made.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410679334.6A CN104358209B (en) | 2014-11-25 | 2014-11-25 | A kind of interdigitated electrode structure damping conjugates bridge extension joint |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410679334.6A CN104358209B (en) | 2014-11-25 | 2014-11-25 | A kind of interdigitated electrode structure damping conjugates bridge extension joint |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104358209A CN104358209A (en) | 2015-02-18 |
| CN104358209B true CN104358209B (en) | 2017-12-12 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410679334.6A Expired - Fee Related CN104358209B (en) | 2014-11-25 | 2014-11-25 | A kind of interdigitated electrode structure damping conjugates bridge extension joint |
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| CN (1) | CN104358209B (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105951590A (en) * | 2016-07-01 | 2016-09-21 | 合肥国本桥梁特种构件有限公司 | Comb type bridge expansion and contraction device |
| CN106522084B (en) * | 2016-11-15 | 2018-12-18 | 西安中交科技研究院有限公司 | A kind of highway bridge shallow-buried flexible fishback shape telescopic device and installation method |
| CN109235258B (en) * | 2018-11-22 | 2020-03-10 | 马红莉 | Comb-tooth-shaped damping displacement bridge support expansion device |
| CN111794093A (en) * | 2020-08-11 | 2020-10-20 | 衡水骏泰路桥工程有限公司 | Solid viscous damper and application thereof in comb plate type telescopic device |
| CN111851283A (en) * | 2020-08-20 | 2020-10-30 | 河北宝力工程装备股份有限公司 | Anti-warping tooth multidirectional displacement device and application thereof in comb plate type telescopic device |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20050241084A1 (en) * | 2004-04-21 | 2005-11-03 | State Of California, Department Of Transportation | Seismic joint seal |
| WO2009078829A2 (en) * | 2007-12-14 | 2009-06-25 | Construction Research & Technology Gmbh | Expansion joint system |
| CN102102339B (en) * | 2009-12-19 | 2012-07-04 | 柳州东方工程橡胶制品有限公司 | Prestressed multidirectional displacement comb plate expansion device |
| CN202787066U (en) * | 2012-07-27 | 2013-03-13 | 柳州东方工程橡胶制品有限公司 | Multidirectional-shifting comb plate expansion device |
| CN203559345U (en) * | 2013-10-17 | 2014-04-23 | 宁波路宝科技实业集团有限公司 | Non-concrete bridge expansion joint device |
| CN203768800U (en) * | 2014-01-24 | 2014-08-13 | 宁波路宝科技实业集团有限公司 | Non-transition-section concrete bridge expansion joint device |
| CN103835229B (en) * | 2014-03-11 | 2016-05-25 | 贵州省交通规划勘察设计研究院股份有限公司 | A kind of comb-tooth bridge expansion device of self adaptation multi-directional deflection |
| CN204325911U (en) * | 2014-11-25 | 2015-05-13 | 合肥国本桥梁特种构件有限公司 | A kind of interdigitated electrode structure damping displacement bridge extension joint |
-
2014
- 2014-11-25 CN CN201410679334.6A patent/CN104358209B/en not_active Expired - Fee Related
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| Publication number | Publication date |
|---|---|
| CN104358209A (en) | 2015-02-18 |
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