CN207974000U - A kind of railroad bridge elastomer expansion gap device - Google Patents
A kind of railroad bridge elastomer expansion gap device Download PDFInfo
- Publication number
- CN207974000U CN207974000U CN201820156897.0U CN201820156897U CN207974000U CN 207974000 U CN207974000 U CN 207974000U CN 201820156897 U CN201820156897 U CN 201820156897U CN 207974000 U CN207974000 U CN 207974000U
- Authority
- CN
- China
- Prior art keywords
- elastomer
- bridge
- expansion gap
- gap device
- railroad bridge
- 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.)
- Active
Links
Landscapes
- Bridges Or Land Bridges (AREA)
Abstract
The utility model discloses a kind of railroad bridge elastomer expansion gap devices, waterproof sealing suitable for Common Span beams of concrete abutted seam, the apparatus structure includes the first elastomer, the second elastomer, bottom liner, bottom liner is located at beam-ends seam lower half, first elastomer and the second elastomer are located at the beam-ends seam first half, first elastomer is flushed with the second elastomer upper surface and bridge upper surface, first elastomer is located at the second elastomer middle, second elastomer both sides are the first elastomer and concrete beam end respectively, and the two is bonded together.The first elastomer plant produced that the utility model uses, modulus are relatively low；Second elastomer site operation, adhesion strength height, good manufacturability, the waterproof sealing elastomer winter construction for efficiently solving Common Span beams of concrete abutted seam is difficult, disadvantage easy to crack.
Description
Technical field
The utility model is related to expanded joint structure field, more particularly to a kind of Railway Concrete Bridge elastomer expansion joint is tied
Structure.
Background technology
In recent years, rapid development, important set of the Railway Concrete Bridge as railroad track is presented in railway track traffic
At part, structure directly influences the safe to use of bridge.Important connection between railroad bridge expansion joint-bridge beam end
Component, to railroad bridge end, flexible, damping and water resistance play an important role.Traditional expansion joint is by two
Shaped steel is embedded in the cement at gap both ends, then rubber weather strip is filled in shaped steel, closely coupled with sealing strip by shaped steel
To play the role of preventing clearance leakage.It is rubbery expansion joint to commonly use expansion joint type on bridge at present, and rubber connects with shaped steel
Direct type formula be card slot connection, therefore sealing strip caused by due to Rig up error and sealing strip aging etc. fall off it is different degrees of
It is damaged even to crack, lose damping, carrying, drain function.And because shaped steel notch is mostly in bridge floor side, so installation and replacement phase
Work as difficulty.
Invention content
The purpose of this utility model is to provide a kind of high capacity, the railways of high resiliency, service life length, simple structure
Concrete composite elastic body expansion joint.
To reach this purpose, the utility model adopts the following technical solution：A kind of railroad bridge elastomer expansion joint dress
It sets, which includes bottom liner, the first elastomer and two the second elastomers, and the bottom liner is located at bridge beam end seam lower half,
First elastomer and the second elastomer are located at the bridge beam end seam first half, first elastomer and the second elastomer
Upper surface is flushed with bridge upper surface, and first elastomer is located at two second elastomer middles, second bullet
Property body both sides are in contact and bond together with first elastomer and bridge beam end respectively.
Preferably, first elastomer is what prefabrication was formed.
Preferably, second elastomer is to be used made of liquid charging stock cast in building-site.
Preferably, second elastomer is using liquid charging stock cast-in-site in first elastomer and bridge beam end
Between formed in the gap of 10-50mm reserved.
Preferably, first elastomer and the second elastomer are polyurethane material.
Preferably, adhesion strength >=1mPa of second elastomer and bridge beam end and the first elastomer.
Preferably, the bottom liner is polypropylene, polyethylene, EVA, polyurethane, polyvinyl chloride elastic foam material.
Preferably, the bottom liner is cylinder elastic foam material, 1-1.5 times of a diameter of bridge expanssion joint width, long
Degree is bridge expanssion joint length.
Preferably, the surface of the bridge beam end and the first elastomer is coated in advance with the primary coat for increasing cohesive force.
Preferably, second surface of elastomer is provided with the antiaging coating or described of one layer of 0.5-2mm thickness
One piece of cover board antiultraviolet aging is arranged in two surface of elastomer.
First elastomer is low modulus of elasticity materials, while ensureing elongation at break, and pulling force can be made to be in smaller
State.Second elastomer is filled in by way of cast among beam-ends and the first elastomer, with beam body concrete bonding intensity
Height, construction technology performance are good.
When expansion joint gap increases between winter beam-ends, expansion joint is actually by the tensile strength of itself to drawing
It opens, and all homogenous materials tensile strengths of itself can all be more than and need to balance with base material adhesion strength, this contradiction.It is single
Elastomeric material low elastic modulus/low tensile strength and base material high bond strength, construction technology performance this three's performance between
It is conflicting, single material to ensure low elastic modulus and high bond strength, just necessarily sacrifices workability, lead
Cause construction technology poor.
The utility model develops two kinds of elastomeric materials, and the first elastomer has low elastic modulus, that is material
It is softer, it is easy to stretch；Second elastomeric resilient modulus is higher, but cohesive force is high, and construction technology is good；First prefabricated when construction
The first good material is placed among expansion joint, then second of material of cast-in-site.
Expansion joint uses the first elastomer of low modulus and elastomeric composite structure, and entire elastomer expansion joint combines foam
The advantages of body and elastomer, low modulus make pulling force be in smaller state, alleviate the stress between concrete and expansion joint significantly, and mixed
The elastomer that solidifying soil connects provides high cementability and intensity, and it is poor to efficiently solve railroad bridge seam damping effect, easy to crack,
The inadequate disadvantage of bearing capacity.
Description of the drawings
Fig. 1 is utility model diagram
Reference sign：The first elastomers of 1-, the second elastomers of 2-, 3- bottom liners, 4- bridge beam ends.
Specific implementation mode
The utility model is described in further details below in conjunction with the accompanying drawings：
As shown in Fig. 1, railroad bridge elastomer expansion joint, the structure include the first elastomer 1, the second elastomer 2,
Bottom liner 3.Bottom liner 3 is located at 4 seam lower half of beam-ends, and the first elastomer 1 and the second elastomer 2 are located at the 4 seam first half of beam-ends, the
One elastomer 1 is flushed with 2 upper surface of the second elastomer and bridge upper surface, and the first elastomer 1 is located at the second elastomer 2 center
Between, 2 both sides of the second elastomer are the first elastomer 1 and concrete beam end 4 respectively, and the two is bonded together.Realization method
For：After bridge beam end 4 is cleared up, bottom liner 3 is fixed on 4 seam lower half of beam-ends；The first good elastomer 1 of prefabrication is fixed
On bottom liner 3, and it is located at 3 middle of bottom liner, the first elastomer 1 has the gap of 10-50mm with beam-ends 4, on the first elastomer 1
End face and bridge upper surface flush；Second elastomer, 2 liquid charging stock cast-in-site is had in the first elastomer 1 with beam-ends
In the gap of 10-50mm, when 2 liquid charging stock upper surface of the second elastomer and bridge upper surface flush, stop cast；Wait for the
, can be in one layer of 0.5-2mm thickness antiaging coating of external coating or spraying after the solidification of two elastomers, 2 liquid charging stock, it can also
In surface plus one piece of cover board antiultraviolet aging.
Above description is only a specific implementation of the present invention, but the scope of protection of the utility model is not limited to
In this, any one skilled in the art within the technical scope disclosed by the utility model, can readily occur in variation
Or replace, it should be covered within the scope of the utility model.Therefore, the scope of protection of the utility model should be with the power
Subject to the protection domain that profit requires.
Claims (10)
1. a kind of railroad bridge elastomer expansion gap device, which is characterized in that the device includes bottom liner, the first elastomer and two
A second elastomer, the bottom liner are located at bridge beam end seam lower half, and first elastomer and the second elastomer are located at bridge
The beam beam-ends seam first half, first elastomer are flushed with the upper surface of the second elastomer with bridge upper surface, and described first
Elastomer is located at two second elastomer middles, second elastomer both sides respectively with first elastomer and bridge
Beam beam-ends is in contact and bonds together.
2. a kind of railroad bridge elastomer expansion gap device according to claim 1, which is characterized in that first bullet
Property body be prefabrication formed.
3. a kind of railroad bridge elastomer expansion gap device according to claim 1, which is characterized in that second bullet
Property body be building-site using liquid charging stock cast made of.
4. a kind of railroad bridge elastomer expansion gap device according to claim 3, which is characterized in that second bullet
Property body is the gap of the 10-50mm reserved between first elastomer and bridge beam end using liquid charging stock cast-in-site
Formed in.
5. a kind of railroad bridge elastomer expansion gap device according to claim 1, which is characterized in that first bullet
Property body and the second elastomer are polyurethane material.
6. a kind of railroad bridge elastomer expansion gap device according to claim 1, which is characterized in that second bullet
Adhesion strength >=1mPa of property body and bridge beam end and the first elastomer.
7. a kind of railroad bridge elastomer expansion gap device according to claim 1, which is characterized in that the bottom liner is
Polypropylene, polyethylene, EVA, polyurethane, polyvinyl chloride elastic foam material.
8. a kind of railroad bridge elastomer expansion gap device according to claim 1, which is characterized in that the bottom liner is
Cylinder elastic foam material, 1-1.5 times of a diameter of bridge expanssion joint width, length is bridge expanssion joint length.
9. a kind of railroad bridge elastomer expansion gap device according to claim 1, which is characterized in that the Bridge Beam
End and the surface of the first elastomer are coated in advance with the primary coat for increasing cohesive force.
10. a kind of railroad bridge elastomer expansion gap device according to claim 1, which is characterized in that described second
Surface of elastomer is provided with one piece of lid of antiaging coating or second surface of elastomer setting of one layer of 0.5-2mm thickness
Plate antiultraviolet aging.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820156897.0U CN207974000U (en) | 2018-01-30 | 2018-01-30 | A kind of railroad bridge elastomer expansion gap device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820156897.0U CN207974000U (en) | 2018-01-30 | 2018-01-30 | A kind of railroad bridge elastomer expansion gap device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207974000U true CN207974000U (en) | 2018-10-16 |
Family
ID=63766492
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820156897.0U Active CN207974000U (en) | 2018-01-30 | 2018-01-30 | A kind of railroad bridge elastomer expansion gap device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207974000U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109763422A (en) * | 2018-12-29 | 2019-05-17 | 万华节能科技集团股份有限公司 | A kind of joint filling structure and its construction technology with modified isocyanate buffer layer |
| CN110029573A (en) * | 2019-04-22 | 2019-07-19 | 诸葛萍 | A kind of expansion gap device of bridge and the construction method of expansion gap device |
| CN110552286A (en) * | 2019-09-26 | 2019-12-10 | 谷丹 | Bridge expansion joint structure and preparation method thereof |
| CN113684755A (en) * | 2021-08-31 | 2021-11-23 | 济南华锐铁路机械制造有限公司 | Railway bridge elastomer expansion device inclined plane sectional pouring process |
| CN114250698A (en) * | 2021-12-08 | 2022-03-29 | 山东高速济青中线公路有限公司 | Novel bridge expansion joint device and construction method |
-
2018
- 2018-01-30 CN CN201820156897.0U patent/CN207974000U/en active Active
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109763422A (en) * | 2018-12-29 | 2019-05-17 | 万华节能科技集团股份有限公司 | A kind of joint filling structure and its construction technology with modified isocyanate buffer layer |
| CN110029573A (en) * | 2019-04-22 | 2019-07-19 | 诸葛萍 | A kind of expansion gap device of bridge and the construction method of expansion gap device |
| CN110552286A (en) * | 2019-09-26 | 2019-12-10 | 谷丹 | Bridge expansion joint structure and preparation method thereof |
| CN113684755A (en) * | 2021-08-31 | 2021-11-23 | 济南华锐铁路机械制造有限公司 | Railway bridge elastomer expansion device inclined plane sectional pouring process |
| CN113684755B (en) * | 2021-08-31 | 2023-09-26 | 济南华锐铁路机械制造有限公司 | Inclined plane sectional pouring process for railway bridge elastomer telescoping device |
| CN114250698A (en) * | 2021-12-08 | 2022-03-29 | 山东高速济青中线公路有限公司 | Novel bridge expansion joint device and construction method |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN207974000U (en) | A kind of railroad bridge elastomer expansion gap device | |
| CN108035245B (en) | Novel fabricated seamless expansion-contraction devices and its construction method | |
| CN104847382B (en) | A kind of self-adhering type complex waterproof layer and its laying method for tunnel | |
| CN107345406B (en) | waterproof sealing method for deformation joint of pipe gallery | |
| CN207079627U (en) | A kind of assembled underground pipe gallery member connecting structure | |
| CN206127752U (en) | Flexible parcel system of track | |
| CN108797388B (en) | Reinforcing structure for improving bearing capacity of hollow slab girder bridge and construction method thereof | |
| CN207973999U (en) | A kind of cast-in-site Railway Concrete Bridge elastomer expansion gap device | |
| CN105952070A (en) | Synchronous construction method for TPZ red core molecular level bonding waterproof coiled material | |
| CN108867337B (en) | Waterproof structure of bridge joint and construction method | |
| CN209923991U (en) | Vibration isolation structure for building foundation | |
| CN207512601U (en) | A kind of water-tight device for being suitable for repairing Existing Railway Line bridge expanssion joint | |
| CN206941315U (en) | A kind of elastic insulated pad and Damping fastening system | |
| CN216840146U (en) | Combined sound-insulation vibration-reduction floating building platform | |
| CN214401389U (en) | Longitudinal abutted seam structure of newly-built bridge and current bridge | |
| CN205871341U (en) | High adhesive force waterproof board | |
| CN212611933U (en) | Assembled polyurethane expansion joint device with large expansion amount | |
| CN108360374A (en) | A kind of water-tight device being suitable for repairing Existing Railway Line bridge expanssion joint | |
| CN207048079U (en) | Waterproof structure for embedded steel-concrete connecting piece | |
| CN111287034A (en) | Protective device for tramcar rail | |
| CN110485288B (en) | Landfill type bridge expansion device and construction method | |
| CN112301881A (en) | U-shaped bridge deck beam end waterproof device and preparation method thereof | |
| CN210507840U (en) | External-sticking type water stop | |
| CN106088366A (en) | A kind of detachable subsiding crack height waterproof construction and construction method thereof | |
| CN205314058U (en) | Geomembrane anchor structure |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |