CN202543795U - Expansion joint for roads and bridges - Google Patents
Expansion joint for roads and bridges Download PDFInfo
- Publication number
- CN202543795U CN202543795U CN2012200298197U CN201220029819U CN202543795U CN 202543795 U CN202543795 U CN 202543795U CN 2012200298197 U CN2012200298197 U CN 2012200298197U CN 201220029819 U CN201220029819 U CN 201220029819U CN 202543795 U CN202543795 U CN 202543795U
- Authority
- CN
- China
- Prior art keywords
- roads
- bridges
- polyurethane elastomer
- bridge
- shrinkage joint
- 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
Images
Abstract
The utility model discloses an expansion joint for roads and bridges. The expansion joint is a polyurethane elastomer block which is made of a polyurethane elastomer and is seamlessly connected with two ends of clearances for roads and bridges. According to the expansion joint for the roads and the bridges disclosed by the utility model, the polyurethane elastomer block is seamlessly abutted with two ends of the clearances for roads and bridges, and thus vehicles can smoothly pass joint parts of the roads and the bridges and are low in vibration and noise; by adopting seamless abutting, the phenomenon that joint parts of the road surface and the bridge surface are damaged because rainwater and the like intrude the road surface and the bridge surface along the joints can be avoided; meanwhile, a polyurethane material has favorable fatigue resistance and weather resistance, is suitably used at high humidity and low temperature of 60DEG C below zero and is long in service life.
Description
Technical field
The utility model relates to a kind of shrinkage joint.
Background technology
For satisfying the requirement of bridge floor distortion, all the shrinkage joint need be set in two bridge docking sections.The steel stretching device is often adopted at shrinkage joint of the prior art; This stretching device often produces panting action owing to beam-ends rotation or deflection deformation when vehicle crosses, noise is big, and makes structural failure easily, and structure is also complicated.Be not seamless link between steel stretching device and the bridge, appoint at connecting portion so to have the slit that rainwater etc. can be invaded the shrinkage joint; Corrosion is caused at the shrinkage joint; And the weatherability at its this shrinkage joint is also relatively poor, when high humility and-60 ℃ of following low temperature, uses, and damages easily.
Therefore need improve shrinkage joint of the prior art, vibrations are little when crossing the shrinkage joint, noise is low, strengthens the anticorrosive and weather resistance at shrinkage joint simultaneously, prolongs its application life so that vehicle is expert at.
The utility model content
In view of this, the purpose of the utility model provides shrinkage joint of a kind of road and bridge, its vehicle is expert at when crossing the shrinkage joint vibrations are little, noise is low, the shrinkage joint has anticorrosive and characteristics such as weatherability is strong, long service life simultaneously.These road and bridge, the technical scheme at shrinkage joint was:
These road and bridge the shrinkage joint for process by polyurethane elastomer and with the polyurethane elastomer piece of road and bridge slit two ends seamless link.
Further, be fixedly connected with the elastic wear-resisting layer on the upper surface of said polyurethane elastomer piece;
Further, the lower surface of said polyurethane elastomer piece is provided with block.
The beneficial effect of the utility model: the utility model road and bridge shrinkage joint, polyurethane elastomer piece and two ends, road and bridge slit slitless connection, thus can make vehicle stably through the road and bridge seam, vehicle vibrations and noise are little; Slitless connection can prevent that also rainwater etc. from invading in road, the bridge floor along seam, satisfies the need, the seam of bridge floor causes damage; Because polyurethane material has good fatigue resistance and weatherability, be applicable to when high humility and-60 ℃ of following low temperature and use long service life simultaneously.
Description of drawings
Below in conjunction with accompanying drawing and embodiment the utility model is further described.
Fig. 1 is the structural representation at the utility model road and bridge shrinkage joint.
The specific embodiment
Fig. 1 is the structural representation at the utility model road and bridge shrinkage joint.
As shown in Figure 1, present embodiment road and bridge shrinkage joint, said shrinkage joint for process by polyurethane elastomer and with the polyurethane elastomer piece 1 of road and bridge slit two ends seamless link.Polyurethane elastomer piece and two ends, road and bridge slit slitless connection, thus can make vehicle stably through the road and bridge seam, and vehicle vibrations and noise are little; Slitless connection can prevent that also rainwater etc. from invading in road, the bridge floor along seam, satisfies the need, the seam of bridge floor causes damage; Because polyurethane material has good fatigue resistance and weatherability, be applicable to when high humility and-60 ℃ of following low temperature and use long service life simultaneously.
As improvement to this embodiment, be fixedly connected with elastic wear-resisting layer 2 on the upper surface of said polyurethane elastomer piece 1, but macromolecular materials such as elastic wear-resisting layer pitch process, can strengthen the anti-wear performance at shrinkage joint, prolong its application life.
As the improvement to this embodiment, the lower surface of said polyurethane elastomer piece 1 is provided with block 3, and block 3 can be processed by offset plate or concrete etc., can strengthen the anti-pressure ability at shrinkage joint.
Explanation is at last; Above embodiment is only unrestricted in order to the technical scheme of explanation the utility model; Although with reference to preferred embodiment the utility model is specified, those of ordinary skill in the art should be appreciated that and can make amendment or be equal to replacement the technical scheme of the utility model; And not breaking away from the aim and the scope of the utility model technical scheme, it all should be encompassed in the middle of the claim scope of the utility model.
Claims (2)
- One kind road and bridge the shrinkage joint, it is characterized in that: said shrinkage joint for process by polyurethane elastomer and with the polyurethane elastomer piece of road and bridge slit two ends seamless link; Be fixedly connected with the elastic wear-resisting layer on the upper surface of said polyurethane elastomer piece.
- 2. road and bridge according to claim 1 the shrinkage joint, it is characterized in that: the lower surface of said polyurethane elastomer piece is provided with block.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012200298197U CN202543795U (en) | 2012-01-30 | 2012-01-30 | Expansion joint for roads and bridges |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012200298197U CN202543795U (en) | 2012-01-30 | 2012-01-30 | Expansion joint for roads and bridges |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202543795U true CN202543795U (en) | 2012-11-21 |
Family
ID=47164449
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012200298197U Expired - Fee Related CN202543795U (en) | 2012-01-30 | 2012-01-30 | Expansion joint for roads and bridges |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202543795U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103669204A (en) * | 2014-01-02 | 2014-03-26 | 南京工业大学 | Macromolecular elastomer expansion joint |
| CN105256715A (en) * | 2015-11-18 | 2016-01-20 | 中国神华能源股份有限公司 | Sealing structure between beams of bridge |
| CN105369734A (en) * | 2015-11-17 | 2016-03-02 | 成都科创佳思科技有限公司 | Bridge expansion joint |
| CN109914235A (en) * | 2019-04-22 | 2019-06-21 | 张建伟 | A kind of bridge floor continuous structure |
-
2012
- 2012-01-30 CN CN2012200298197U patent/CN202543795U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103669204A (en) * | 2014-01-02 | 2014-03-26 | 南京工业大学 | Macromolecular elastomer expansion joint |
| CN105369734A (en) * | 2015-11-17 | 2016-03-02 | 成都科创佳思科技有限公司 | Bridge expansion joint |
| CN105256715A (en) * | 2015-11-18 | 2016-01-20 | 中国神华能源股份有限公司 | Sealing structure between beams of bridge |
| CN109914235A (en) * | 2019-04-22 | 2019-06-21 | 张建伟 | A kind of bridge floor continuous structure |
| CN109914235B (en) * | 2019-04-22 | 2021-09-03 | 张旭云 | Bridge deck continuous structure |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN202543795U (en) | Expansion joint for roads and bridges | |
| CN103614964B (en) | Steel box beam orthotropic deck slab | |
| CN204509989U (en) | A kind of expansion gap device of negative poisson ' s ratio honeycomb structure | |
| CN104762875B (en) | A kind of seamless surface type bridge expanssion joint | |
| CN104153289A (en) | Replaceable modular bridge expansion device and installation and maintenance replacement method thereof | |
| CN211256669U (en) | Steel bridge deck pavement structure | |
| CN103343507A (en) | Composite structure of three main trusses, longitudinal beams, transverse beams and concrete slabs | |
| CN203977286U (en) | Replaceable modulus bridge expansion device | |
| CN205576732U (en) | Expansion joint for roads and bridges | |
| CN201148594Y (en) | Improved bridge telescoping device | |
| CN202227757U (en) | Inserting plate connecting component and power transmission line steel tube tower | |
| CN201277260Y (en) | Radial spherical plain bearing | |
| CN102518037A (en) | Expansion device for extra-large displacement bridge | |
| CN105568849A (en) | Comb type bridge expansion device with adaption to multi-directional displacement | |
| CN204385563U (en) | A kind of railway roadbed end bending resistance coupling arrangement | |
| CN103835229A (en) | Self-adaptive multidirectional dislocation method and self-adaptive multidirectional dislocation device for retractable device | |
| CN204000598U (en) | The changeable position of elasticity broach bridge extension joint | |
| CN203256610U (en) | Road bridge expansion joint | |
| CN107905044B (en) | A kind of switch bed plate clamp device rain-proof cover structure | |
| CN201686930U (en) | Elastomer expansion and contraction device for railway concrete bridge | |
| CN207974026U (en) | A kind of bridge strengthening device for municipal works | |
| CN216586146U (en) | Bridge expansion joint with compression resistance and waterproof performance | |
| CN203782556U (en) | Bridge expansion joint device | |
| CN103628383A (en) | Solid-core composite material dowel bar for cement concrete pavements | |
| CN204383193U (en) | A kind of pantograph collector head bracket |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20121121 Termination date: 20160130 |
|
| EXPY | Termination of patent right or utility model |