CN105568880B - The split type non-metal sound barrier that traffic route is molded with primary concreting - Google Patents
The split type non-metal sound barrier that traffic route is molded with primary concreting Download PDFInfo
- Publication number
- CN105568880B CN105568880B CN201610111724.2A CN201610111724A CN105568880B CN 105568880 B CN105568880 B CN 105568880B CN 201610111724 A CN201610111724 A CN 201610111724A CN 105568880 B CN105568880 B CN 105568880B
- Authority
- CN
- China
- Prior art keywords
- sound
- insulating body
- absorbing
- wind
- sound absorbing
- 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.)
- Expired - Fee Related
Links
- 230000004888 barrier function Effects 0.000 title claims abstract description 47
- 229910052755 nonmetal Inorganic materials 0.000 title claims abstract description 14
- 239000006096 absorbing agent Substances 0.000 claims abstract description 15
- 230000002787 reinforcement Effects 0.000 claims abstract description 10
- 239000000463 material Substances 0.000 claims description 10
- 230000008520 organization Effects 0.000 claims description 6
- 230000003014 reinforcing effect Effects 0.000 claims description 4
- 238000007789 sealing Methods 0.000 claims description 3
- 238000000926 separation method Methods 0.000 claims description 2
- 230000002708 enhancing effect Effects 0.000 claims 1
- 229910001294 Reinforcing steel Inorganic materials 0.000 abstract description 6
- 238000012423 maintenance Methods 0.000 abstract description 5
- 238000005516 engineering process Methods 0.000 abstract description 4
- 230000008859 change Effects 0.000 abstract description 3
- 230000009467 reduction Effects 0.000 abstract description 3
- 239000010410 layer Substances 0.000 description 25
- 238000010521 absorption reaction Methods 0.000 description 8
- 238000010276 construction Methods 0.000 description 5
- 239000007769 metal material Substances 0.000 description 4
- 229910000831 Steel Inorganic materials 0.000 description 3
- 239000011358 absorbing material Substances 0.000 description 3
- 238000009434 installation Methods 0.000 description 3
- 239000010959 steel Substances 0.000 description 3
- 239000004568 cement Substances 0.000 description 2
- 238000002955 isolation Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000007493 shaping process Methods 0.000 description 2
- 230000003319 supportive effect Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000011230 binding agent Substances 0.000 description 1
- 238000005266 casting Methods 0.000 description 1
- 239000000919 ceramic Substances 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000011900 installation process Methods 0.000 description 1
- 239000011229 interlayer Substances 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 239000011241 protective layer Substances 0.000 description 1
- 230000008439 repair process Effects 0.000 description 1
- 239000004576 sand Substances 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 230000006641 stabilisation Effects 0.000 description 1
- 238000011105 stabilization Methods 0.000 description 1
- 239000004575 stone Substances 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01F—ADDITIONAL WORK, SUCH AS EQUIPPING ROADS OR THE CONSTRUCTION OF PLATFORMS, HELICOPTER LANDING STAGES, SIGNS, SNOW FENCES, OR THE LIKE
- E01F8/00—Arrangements for absorbing or reflecting air-transmitted noise from road or railway traffic
- E01F8/0005—Arrangements for absorbing or reflecting air-transmitted noise from road or railway traffic used in a wall type arrangement
- E01F8/0029—Arrangements for absorbing or reflecting air-transmitted noise from road or railway traffic used in a wall type arrangement with porous surfaces, e.g. concrete with porous fillers
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01F—ADDITIONAL WORK, SUCH AS EQUIPPING ROADS OR THE CONSTRUCTION OF PLATFORMS, HELICOPTER LANDING STAGES, SIGNS, SNOW FENCES, OR THE LIKE
- E01F8/00—Arrangements for absorbing or reflecting air-transmitted noise from road or railway traffic
- E01F8/0005—Arrangements for absorbing or reflecting air-transmitted noise from road or railway traffic used in a wall type arrangement
- E01F8/0017—Plate-like elements
Landscapes
- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Devices Affording Protection Of Roads Or Walls For Sound Insulation (AREA)
Abstract
The present invention relates to the split type non-metal sound barrier that a kind of traffic route is molded with primary concreting, belong to traffic route noise reduction technology field, it is made up of side by side some sound-screen body unit groups, sound-screen body unit group is made up of side by side one or more sound absorbing-insulating body units, sound absorbing-insulating body unit includes two wind-resistant columns, sound absorbing-insulating body is provided between two wind-resistant columns, some sound absorbers are housed in sound absorbing-insulating body, some sound-absorbing hole are provided with the one side of sound absorbing-insulating body, structure reinforcing steel bar arrangement of reinforcement is equipped with wind-resistant column and sound absorbing-insulating body.The noise barrier structure is simply firm, improves weatherability, and be easy to the maintenance in later stage to change.
Description
Technical field
The present invention relates to the split type non-metal sound barrier that a kind of traffic route is molded with primary concreting, belong to traffic road
Road noise reduction technology field.
Background technology
With the rapid development of highway, railway, caused noise pollution is also increasingly severe on traffic route, has a strong impact on
The normal life of near roads people.And existing non-metal sound barrier noise reduction technology and mode are absorbed sound using concrete mostly
Cell board and H steel columns are by the secondary combination installation in scene, and this sound barrier is because acoustic board surface density is big, and particularly railway is applied
The reasons such as work site traffic is not convenient, condition is poor cause following problems in installation process be present, first, causing the cell board that absorbs sound
Damage and be difficult to repair, the heavy damage mechanics and acoustics index of sound barrier, second, the installation of H steel columns is connected by screw bolts
Form, because its steel column and connecting bolt are exposed, weatherability is poor, corrosion resistance is weak, it is difficult to ensures the use of weather-proof 25 years
In the life-span, safeguarded after being damaged and change trouble, and it is costly.
The content of the invention
Deficiency of the prior art, the technical problem to be solved in the present invention are more than：A kind of traffic route is provided to use
The split type non-metal sound barrier of primary concreting shaping, it is simple in construction firm, weatherability is improved, and be easy to the maintenance in later stage more
Change.
The split type non-metal sound barrier that traffic route of the present invention is molded with primary concreting, by some sound separating members
Unit group is formed side by side, and sound-screen body unit group is made up of side by side one or more sound absorbing-insulating body units, sound absorbing-insulating body unit
Including two wind-resistant columns, sound absorbing-insulating body is provided between two wind-resistant columns, some sound absorbers, sound absorbing-insulating are housed in sound absorbing-insulating body
Some sound-absorbing hole are provided with the one side of body, structure reinforcing steel bar arrangement of reinforcement is equipped with wind-resistant column and sound absorbing-insulating body；Sound separating member
The wind-resistant column cylinder at unit group both ends is provided with neck, and the end of sound absorbing-insulating body is cast in the neck of wind-resistant column, sound absorption
Shield and be provided with resilient barrier layer between the end of body and the neck of wind-resistant column；Sound-screen body unit group is nonmetallic materials primary concreting
Split type structure being molded, being separated by resilient barrier layer.
Sound absorbing-insulating body with sound absorber realizes sound absorption function, and wind-resistant column plays a supportive role, and reinforcing bar arrangement of reinforcement plays structure
The effect of reinforcing, the flexible deformation nature of resilient barrier layer, it is applicable to shield expanding with heat and contract with cold for body in the case of Different climate, subtracts
Small stress concentration, weatherability being improved, resilient barrier layer comes sound-screen body unit set isolation at neck position, when being damaged,
The screen body portion group of damage is taken out and changed, is easy to safeguard.
Preferably, the sound-screen body portion between the neck of sound-screen body unit group both ends is upper and lower partitioned organization, is divided from top to bottom
For some pieces, horizontal resiliency separate layer is provided between upper and lower adjacent two pieces of sound separating members, partitioned organization easily facilitates maintenance and changed,
The fritter part that damage only is need to be directed to changed, and is reduced and is changed maintenance cost.
Preferably, expansion joint, adjacent two sound-screens body unit group are left between two wind-resistant columns of adjacent two sound-screens body unit group
Two wind-resistant columns in resilient barrier layer in I-shaped, it is I-shaped in vertical resilient barrier layer be located in expansion joint, simplify and tie
Structure, resilient barrier layer is made full use of, ensure weatherability.
Preferably, resilient barrier layer and horizontal resiliency separate layer are weather-proof rubber blanket.
Preferably, the sound-absorbing hole of sound absorbing-insulating body side surface is the list structure arranged at equal intervals, sound-absorbing hole and sound absorption
Screen body side surface tilts obliquely, and range of tilt angles is 0 ° -45 °, is easy to one-shot forming, improves production efficiency.
Preferably, the height of every piece of sound-screen body portion is 400mm, 430mm, 450mm, 500mm or 1000mm.
Preferably, the surface density scope of sound absorbing-insulating body is 80kg/m2-400kg/m2。
Preferably, nonmetallic materials make gel rubber material by cement, inorganic non-metallic material is made aggregate proportioning and formed.
Preferably, it is sealing structure at the top of the sound absorber in sound absorbing-insulating body, prevents extraneous factor from influenceing the suction of sound absorber
Sound effective value.
The possessed compared with prior art beneficial effect of the present invention is：
The split type non-metal sound barrier that traffic route is molded with primary concreting is simple in construction, increases resilient barrier layer,
The inorganic non-metallic material of all stabilizations of material of selection, and with the stability, weather resistance, fire line of its excellent material
Can, effectively fundamentally solve the problems, such as that prior art is present, ensure that the disposable realization of the performance indications of sound barrier,
So as to greatly reduce construction cost, efficiency of construction is improved, ensure that the service life of construction quality and engineering.
Brief description of the drawings
Fig. 1 is the structural representation of the present invention；
Fig. 2 is A-A sectional views in Fig. 1；
Fig. 3 is B-B sectional views in Fig. 1；
Fig. 4 is the sound-screen body portion partitioned organization schematic diagram of the present invention.
In figure：1st, wind-resistant column；2nd, sound absorbing-insulating body；3rd, sound-absorbing hole；4th, absorb sound body opening；5th, resilient barrier layer；6th, horizontal bullet
Property separate layer.
Embodiment
Embodiments of the invention are described further below in conjunction with the accompanying drawings：
Embodiment 1
As shown in Figure 1-Figure 3, the split type non-metal sound barrier that traffic route is molded with primary concreting is by some sound-screens
Body unit group is formed side by side, and sound-screen body unit group is made up of side by side two sound absorbing-insulating body units, and sound absorbing-insulating body unit includes
Two wind-resistant columns 1, sound absorbing-insulating body 2 is provided between two wind-resistant columns 1, some sound absorption body openings 4, sound absorption are provided with sound absorbing-insulating body 2
Body opening 4 is provided with some sound-absorbing hole 3 built with sound absorber on the one side of sound absorbing-insulating body 2, in wind-resistant column 1 and sound absorbing-insulating body 2
It is equipped with structure reinforcing steel bar arrangement of reinforcement；The cylinder of wind-resistant column 1 at sound-screen body unit group both ends is provided with neck, sound absorbing-insulating body 2
End is cast in the neck of wind-resistant column 1, and resilient barrier layer is provided between the end of sound absorbing-insulating body 2 and the neck of wind-resistant column 1
5；Split type structure that sound-screen body unit group is the shaping of nonmetallic materials primary concreting, being separated by resilient barrier layer 5.
Expansion joint is left between two wind-resistant columns 1 of adjacent two sound-screens body unit group, the two of adjacent two sound-screens body unit group are anti-
Resilient barrier layer 5 in wind post 1 in I-shaped, it is I-shaped in vertical resilient barrier layer be located in expansion joint, sound barrier most two
Hold the resilient barrier layer 5 in wind-resistant column 1 U-shaped, both met separation, in turn ensure that weatherability, and structure simplifies.
Resilient barrier layer 5 selects weather-proof rubber blanket.
The sound-absorbing hole 3 of the side of sound absorbing-insulating body 2 is the list structure arranged at equal intervals, sound-absorbing hole 3 and sound absorbing-insulating body 2
Side tilts obliquely, and range of tilt angles is 0 ° -45 °.
The surface density scope of sound absorbing-insulating body 2 is 80kg/m2-400kg/m2, nonmetallic materials by cement make gel rubber material,
Inorganic non-metallic material is made aggregate proportioning and formed, and light ceramic, stone, sand etc. can be selected in inorganic non-metallic material, according to friendship
Passway design requirement matches by a certain percentage, reaches required surface density.
It is sealing structure at the top of sound absorber in sound absorbing-insulating body 2, filling hole site is poured into closure after sound absorber filling,
Prevent the extraneous factors such as rainwater from influenceing the acoustically effective of sound absorber.
During practical application, it is being molded using scene from particular manufacturing craft primary concreting, the sound barrier with sound absorber is real
Existing sound absorption function, wind-resistant column 1 play a supportive role, and reinforcing bar arrangement of reinforcement plays structure-reinforced, 5 flexible shape of resilient barrier layer
Become performance, be applicable to shield expanding with heat and contract with cold for body in the case of Different climate, reduce stress concentration, improve weatherability, and elasticity point
Interlayer 5 comes sound-screen body unit set isolation at neck position, Split type structure is formed, when being damaged, by the screen body portion of damage
Packet, which is taken out, to be changed, and is easy to safeguard.
Specifically primary concreting forming method is：1st, continued access is prefabricated in the plane of sound barrier concrete foundation stub ± 0
Good wind resistance rod structure reinforcing steel bar arrangement of reinforcement and with Foundation pier arrangement of reinforcement firm welding, prefabricated sound absorbing-insulating body structure is installed
Reinforcing steel bar arrangement of reinforcement.The 2nd, sound barrier front template, rear pattern plate and sound absorber internal model, installation sound barrier side mould are installed successively；Connection is solid
Determine and Bian Mo and both ends die unit front template end and rear pattern plate end is formed closing structure.The 3rd, sound absorbing-insulating body is installed
End and wind-resistant column neck between resilient barrier layer.4th, adjust fixed noise barrier structure reinforcing steel bar arrangement of reinforcement and make at its
In the centre position of casting concrete, effective protective layer is formed.5th, nonmetallic mixing binder materials is poured.6th, sound absorber is taken out
The sound-absorbing material of same volume is filled after internal model.7th, pouring hole and sound-absorbing material filling hole are blocked.
From two sound absorption units as one group in the present embodiment, in practical operation, can be selected not according to field working conditions
Same element number is as one group.
Embodiment 2
As shown in figure 4, for the sound-screen body portion between the sound-screen body unit group both ends neck in embodiment 1, set
Partitioned organization up and down is calculated as, is divided into some pieces from top to bottom, horizontal resiliency separate layer is provided between upper and lower adjacent two pieces of sound separating members
6, sound absorption body opening is reserved on horizontal resiliency separate layer 6, and the height of every piece of sound-screen body portion is 400mm, 430mm, 450mm, 500mm
Or 1000mm.
Horizontal resiliency separate layer 6 selects weather-proof rubber blanket.
Partitioned organization easily facilitates maintenance and changed, and the fritter part that need to be only directed to damage is changed, and is reduced and is changed dimension
Shield expense.
Accordingly, in specific primary concreting forming method, the 3rd step also needs to install between adjacent two pieces of sound separating members
Horizontal resiliency separate layer, the 7th step need to be carried out after the completion of every piece of sound separating member pours sound absorber filling, closure pouring hole and
Sound-absorbing material fills hole.
Claims (5)
- A kind of 1. split type non-metal sound barrier that traffic route is molded with primary concreting, it is characterised in that：By some sound-screens Body unit group is formed side by side, and sound-screen body unit group is made up of a sound absorbing-insulating body unit, and sound absorbing-insulating body unit includes two Wind-resistant column（1）, two wind-resistant columns（1）Between be provided with sound absorbing-insulating body（2）, sound absorbing-insulating body（2）Built with some sound absorbers, inhale every Sound separating member（2）One side on be provided with some sound-absorbing hole（3）, wind-resistant column（1）With sound absorbing-insulating body（2）Inside it is equipped with structure enhancing Reinforcing bar arrangement of reinforcement；The wind-resistant column at sound-screen body unit group both ends（1）Cylinder is provided with neck, sound absorbing-insulating body（2）End be cast in Wind-resistant column（1）Neck in, sound absorbing-insulating body（2）End and wind-resistant column（1）Neck between be provided with resilient barrier layer（5）； Sound-screen body unit group is that nonmetallic materials primary concreting is molded, by resilient barrier layer（5）The Split type structure of separation；Described Sound-screen body portion between the neck of sound-screen body unit group both ends is upper and lower partitioned organization, is divided into some pieces from top to bottom, upper and lower phase Horizontal resiliency separate layer is provided between adjacent two pieces of sound separating members（6）；Two wind-resistant columns of adjacent two sound-screens body unit group（1）Between leave Expansion joint, two wind-resistant columns of adjacent two sound-screens body unit group（1）Interior resilient barrier layer（5）In I-shaped arrangement, in I-shaped Vertical resilient barrier layer be located in expansion joint；Described resilient barrier layer（5）With horizontal resiliency separate layer（6）It is weather-proof rubber Rubber cushion.
- 2. the split type non-metal sound barrier that traffic route according to claim 1 is molded with primary concreting, its feature It is：Described sound absorbing-insulating body（2）The sound-absorbing hole of side（3）For the list structure arranged at equal intervals, sound-absorbing hole（3）Relatively In sound absorbing-insulating body（2）Side tilts obliquely, and range of tilt angles is 0 ° -45 °.
- 3. the split type non-metal sound barrier that traffic route according to claim 1 is molded with primary concreting, its feature It is：The height of every piece of sound-screen body portion is 400mm, 430mm, 450mm, 500mm or 1000mm.
- 4. the split type non-metal sound barrier that traffic route according to claim 1 is molded with primary concreting, its feature It is：Described sound absorbing-insulating body（2）Surface density scope be 80kg/m2-400kg/m2。
- 5. the split type non-metal sound barrier that traffic route according to claim 1 is molded with primary concreting, its feature It is：Described sound absorbing-insulating body（2）It is sealing structure at the top of interior sound absorber.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610111724.2A CN105568880B (en) | 2016-02-29 | 2016-02-29 | The split type non-metal sound barrier that traffic route is molded with primary concreting |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610111724.2A CN105568880B (en) | 2016-02-29 | 2016-02-29 | The split type non-metal sound barrier that traffic route is molded with primary concreting |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105568880A CN105568880A (en) | 2016-05-11 |
| CN105568880B true CN105568880B (en) | 2017-12-26 |
Family
ID=55879470
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610111724.2A Expired - Fee Related CN105568880B (en) | 2016-02-29 | 2016-02-29 | The split type non-metal sound barrier that traffic route is molded with primary concreting |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105568880B (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106012881A (en) * | 2016-07-12 | 2016-10-12 | 衡水中铁建环保工程有限公司 | Self-balancing sound barrier |
| CN106758901A (en) * | 2016-12-27 | 2017-05-31 | 中国铁道科学研究院节能环保劳卫研究所 | The acoustic absorptive member of railway metal sound barrier |
| CN106801387A (en) * | 2017-03-21 | 2017-06-06 | 中国电建集团成都勘测设计研究院有限公司 | Cement base sound-absorbing porous material |
Family Cites Families (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| NL9400173A (en) * | 1994-02-04 | 1995-09-01 | Veldhoen Raalte B V | Noise barrier. |
| JP2002309521A (en) * | 2001-04-11 | 2002-10-23 | Junichi Tsuzuki | Soundproof wall of wood screen plate |
| CN201406640Y (en) * | 2009-05-14 | 2010-02-17 | 中铁二院工程集团有限责任公司 | Integral type noise barrier |
| CN201459619U (en) * | 2009-07-22 | 2010-05-12 | 肖世国 | Concrete unit board type sound barrier board |
| CN202175919U (en) * | 2011-04-19 | 2012-03-28 | 苏州混凝土水泥制品研究院有限公司 | Concrete sound insulation board |
| CN103469739A (en) * | 2013-08-19 | 2013-12-25 | 江苏东泽环保科技有限公司 | High-strength cement sound-absorbing plate |
| CN104264596B (en) * | 2014-09-30 | 2017-01-18 | 四川正升声学科技有限公司 | Particle sound barrier and sound absorption and insulation barrier board thereof |
| CN204608625U (en) * | 2015-01-19 | 2015-09-02 | 江苏新光环保工程有限公司 | A kind of Novel light high-strength non-metal sound barrier |
| CN205591135U (en) * | 2016-02-29 | 2016-09-21 | 淄博北辰环保科技有限公司 | Traffic route is with once only pouring fashioned split type non - metallic sound protective screen |
-
2016
- 2016-02-29 CN CN201610111724.2A patent/CN105568880B/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| CN105568880A (en) | 2016-05-11 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102031870B (en) | Foaming material filling box with reinforced layer and slurry leakage hole | |
| CN104213514B (en) | A kind of earthing corrugated steel-concrete combination arch bridge add strong method | |
| CN103276651B (en) | No-cutting-seam cement concrete pavement structure and construction method thereof | |
| CN105568880B (en) | The split type non-metal sound barrier that traffic route is molded with primary concreting | |
| CN101793070A (en) | Hollow floor system filled with an air-filling bag and construction method thereof | |
| CN110747767A (en) | Novel integrated vertical non-metallic sound barrier system and installation method | |
| CN103741597B (en) | A kind of without transition section concrete bridge expansion joint installation and mounting method thereof | |
| CN205591135U (en) | Traffic route is with once only pouring fashioned split type non - metallic sound protective screen | |
| CN105544420B (en) | Traffic route non-metal sound barrier scene primary concreting moulding process | |
| CN101089313A (en) | Hollow floor with permanent assemblied mould arranged along beam and its construction method | |
| CN206467580U (en) | A kind of reinforced bridge pier | |
| CN101298793A (en) | Hollow body for cast-in-situ hollow building roof | |
| CN110924257B (en) | Municipal road, pouring template for construction of municipal road and construction method of pouring template | |
| CN205591136U (en) | Traffic route is with once only pouring fashioned integral non - metallic sound protective screen | |
| CN107558388A (en) | A kind of sound barrier and its installation method applied to existing railway line | |
| CN212505921U (en) | Non-metallic sound barrier | |
| CN215887801U (en) | Anti-cracking asphalt concrete combined road surface structure | |
| CN109356020A (en) | The structure and its construction method of novel bridge connecting plate | |
| CN205364162U (en) | Traffic route is non -, and forming die is once only pour to metallic sound protective screen | |
| CN107165320A (en) | A kind of netted box-shaped Cavity structural member of special type closing in for the built-in filling of cast-in-situ hollow building roof | |
| CN207314181U (en) | A kind of sound barrier applied to existing railway line | |
| CN208586514U (en) | A kind of simply supported girder bridge expansion gap device | |
| CN208415089U (en) | A kind of fashioned iron-cell compartment bridge expanssion joint | |
| CN205711781U (en) | A kind of steel structural bridge panel for Bridge repair and reinforcement | |
| CN210341521U (en) | Bridgehead transition section roadbed structure |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20171226 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |