CN209779440U - Airtight bridge telescoping device that inserts - Google Patents
Airtight bridge telescoping device that inserts Download PDFInfo
- Publication number
- CN209779440U CN209779440U CN201920278604.0U CN201920278604U CN209779440U CN 209779440 U CN209779440 U CN 209779440U CN 201920278604 U CN201920278604 U CN 201920278604U CN 209779440 U CN209779440 U CN 209779440U
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- CN
- China
- Prior art keywords
- expansion joint
- rubber
- expansion
- airtight
- 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.)
- Expired - Fee Related
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- Bridges Or Land Bridges (AREA)
- Road Paving Structures (AREA)
Abstract
The utility model belongs to the technical field of the bridge telescoping device, especially, relate to airtight (sealed, closed) formula bridge is to inserting telescoping device. It comprises expansion joint (1), microfoaming polyurethane elastomer (2), rubber (3), its characterized in that: the micro-foaming polyurethane elastomer (2) is arranged at the position 5-10cm below the gap of the expansion joint (1), and the rubber (3) is arranged at the position 2-3cm above the gap of the expansion joint (1). The utility model discloses an airtight (sealed, seal) formula bridge expansion joint adjusting device and airtight (sealed, seal) material technology that constitutes thereof provides an on-the-spot operable, simple process, and production construction convenience is firm reliable, wear-resisting ageing-resistant, noiselessness, leak protection water prevention of seepage water, exempt from to clear up dust debris, exempt from to maintain, safe and reliable's telescoping device.
Description
Technical Field
The utility model belongs to the technical field of the bridge telescoping device, especially, relate to airtight (sealed, closed) formula bridge telescoping device.
background
In the use process of the bridge expansion device, compared with a common butt joint type (interactive socket joint type) expansion joint, a common steel supporting type expansion device, a common combined shear type (plate type) rubber expansion device and a common modulus supporting type expansion device, problems are easy to occur in the operation process:
1. Because the filler type expansion joint bulges at high temperature and the gap between the steel joints is large, the phenomenon of vehicle jumping occurs, the noise is large, and the driving comfort level is poor;
2. Dust and sundries are deposited above the waterproof water-stop rubber strip between the joints of the telescopic device, once the deposited sundries exceed a certain amount, the waterproof rubber strip is damaged and broken under the action of the load of a passing vehicle, the expansion joints are filled with the dust sundries, the free telescopic effect of the beam body is influenced, and the beam head or the platform back can be damaged by being extruded when the temperature changes;
3. the rubber strips and rubber plates for water prevention and water stop belong to factory production, natural gaps exist between the rubber strips and the steel structures after installation, water seepage and water leakage occur, the beam ends and the platform backs are corroded to enable concrete to be peeled off, and the service life of a bridge is influenced;
4. the waterproof and water-stopping rubber strip and the rubber plate are easy to age and fall off, need to be frequently replaced, waste working hours and materials, pollute the environment and are potential safety accident hazards.
disclosure of Invention
The patent of the utility model aims to solve the technical problem that a do not jump the car noiselessness, leak protection water seepage prevention, exempt from to clear up dust debris, ageing-resistant exempt from to maintain, safe and reliable's airtight (sealed, closed) material technology of airtight (sealed, closed) telescoping device is provided. In order to achieve the purpose, the utility model discloses take the following scheme, it comprises expansion joint (1), little foamed polyurethane elastomer (2), vulcanite (3), its characterized in that is to airtight bridge telescoping device of inserting: the micro-foaming polyurethane elastomer (2) is arranged at the position 5-10cm below the gap of the expansion joint (1), and the rubber (3) is arranged at the position 2-3cm above the gap of the expansion joint (1).
The expansion joint (1) is made of steel, adopts expansion devices which are symmetrically arranged by deformed steel, section steel and cast steel, and is in electric welding connection with reserved steel bars of the bridge table back and the beam slab.
the micro-foaming polyurethane elastomer (2) is bonded at the inner side between the expansion joints (1) by glue; the rubber (3) is fixed on the expansion joint (1) by hot melting when the expansion joint (1) is heated to 80-100 ℃.
The utility model discloses an airtight (sealed, seal) formula bridge expansion joint adjusting device and airtight (sealed, seal) material technology that constitutes thereof provides an on-the-spot operable, simple process, and production construction convenience is firm reliable, wear-resisting ageing-resistant, noiselessness, leak protection water prevention of seepage water, exempt from to clear up dust debris, exempt from to maintain, safe and reliable's telescoping device.
Description of the drawings:
FIG. 1 is a schematic cross-sectional view of a closed cast steel plug-in bridge expansion device.
FIG. 2 is a schematic cross-sectional view of the closed steel bridge expansion device.
The specific implementation mode is as follows:
The utility model provides a it comprises expansion joint (1), little foamed polyurethane elastomer (2), rubber (3) airtight bridge telescoping device that inserts, its characterized in that: the micro-foaming polyurethane elastomer (2) is arranged at the position 5-10cm below the gap of the expansion joint (1), and the rubber (3) is arranged at the position 2-3cm above the gap of the expansion joint (1).
the expansion joint (1) is made of steel, adopts expansion devices which are symmetrically arranged by deformed steel, section steel and cast steel, and is in electric welding connection with reserved steel bars of the bridge table back and the beam slab.
The micro-foaming polyurethane elastomer (2) is bonded at the inner side between the expansion joints (1) by glue; the rubber (3) is fixed on the expansion joint (1) by hot melting when the expansion joint (1) is heated to 80-100 ℃.
The closed (sealing and sealing) type bridge expansion joint adjusting device and the closed (sealing and sealing) material process formed by the closed (sealing and sealing) type bridge expansion joint adjusting device provide a telescopic device which is operable on site, simple in process, convenient to produce and construct, firm and reliable, wear-resistant, anti-aging, free of bumping and noise, water-leakage-proof, free of cleaning dust and sundries, free of maintenance, safe and reliable.
When a load-carrying vehicle passes through the bridge expansion joint (1), impact vibration, resonance and noise are generated due to the fact that friction force is discontinuous, and the micro-foamed polyurethane elastomer (2) at the lower portion of the gap of the expansion joint (1) has the effect of absorbing sound, so that the noise is effectively reduced, the vibration of a travelling crane is reduced, and the purpose of environmental protection of the travelling crane is achieved;
The rubber (3) with higher elasticity and plasticity is arranged at the upper part between the expansion joints (1), and the rubber (3) has stronger adhesive force and elastic tension, so that the expansion joints (1) and the rubber (3) can not be corroded and have oxidation cracks when being exposed to sunlight and rain, and the expansion joints (1) and the rubber (3) can repeatedly and freely stretch and contract along with the change of temperature, thereby achieving the purpose of setting the expansion joints (1) of the bridge (the expansion joints are usually arranged between two beam ends, between the beam ends and a bridge abutment or at the hinged position of the bridge in order to meet the requirement of deformation of the bridge floor, and the expansion joints are required to be freely telescopic in two directions parallel to and vertical to the axis of the bridge, so that the expansion joints are firm and reliable, smooth and free from sudden jump and noise when a vehicle runs, rain water and garbage can be prevented from permeating and blocking, and the installation, inspection, maintenance;
The rubber (3) with higher elasticity is arranged at the upper part between the expansion joints (1), the adhesive force and the tension of the expansion springs are stronger, the rubber cannot corrode and the oxidation cracks can not appear when the rubber is exposed to the sun and rain, the rainwater can be prevented from permeating and the sand and stone sundries can not enter, the cracking and peeling of the surface of the structure caused by the fact that the leaked dirty rainwater erodes the beam body and the concrete at the lower part can be avoided, the expansion joints can be completely prevented from being blocked due to the sand and stone sundries, and the purpose of prolonging the service life of the.
Claims (3)
1. The utility model provides a bridge telescoping device is inserted to airtight, it comprises expansion joint (1), little foamed polyurethane elastomer (2), rubber (3), its characterized in that: the micro-foaming polyurethane elastomer (2) is arranged at the position 5-10cm below the gap of the expansion joint (1), and the rubber (3) is arranged at the position 2-3cm above the gap of the expansion joint (1).
2. the expansion device of claim 1, wherein: the expansion joint (1) is made of steel, adopts expansion devices which are symmetrically arranged by deformed steel, section steel and cast steel, and is in electric welding connection with reserved steel bars of the bridge table back and the beam slab.
3. The expansion device of claim 1, wherein: the micro-foaming polyurethane elastomer (2) is bonded at the inner side between the expansion joints (1) by glue; the rubber (3) is fixed on the expansion joint (1) by hot melting when the expansion joint (1) is heated to 80-100 ℃.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920278604.0U CN209779440U (en) | 2019-03-06 | 2019-03-06 | Airtight bridge telescoping device that inserts |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920278604.0U CN209779440U (en) | 2019-03-06 | 2019-03-06 | Airtight bridge telescoping device that inserts |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209779440U true CN209779440U (en) | 2019-12-13 |
Family
ID=68796638
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920278604.0U Expired - Fee Related CN209779440U (en) | 2019-03-06 | 2019-03-06 | Airtight bridge telescoping device that inserts |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209779440U (en) |
-
2019
- 2019-03-06 CN CN201920278604.0U patent/CN209779440U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20191213 Termination date: 20210306 |