CN209703333U - A kind of Cantilever Bridges limiting device of the lossless installation of bridge pier - Google Patents
A kind of Cantilever Bridges limiting device of the lossless installation of bridge pier Download PDFInfo
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- CN209703333U CN209703333U CN201920291519.8U CN201920291519U CN209703333U CN 209703333 U CN209703333 U CN 209703333U CN 201920291519 U CN201920291519 U CN 201920291519U CN 209703333 U CN209703333 U CN 209703333U
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- bridge pier
- box beam
- cantilever
- bridge
- limiting device
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Abstract
The utility model discloses a kind of Cantilever Bridges limiting devices of the lossless installation of bridge pier, it include: bridge pier, support and box beam, the box beam is located above the bridge pier, and by being connected on the support and the bridge pier, bridge pier upper end side surface is equipped with anchoring box beam, and it is arranged along the bridge pier perimeter, anchorage box back portion is welded with junction steel plate, prestressing force spiral is equipped in the anchoring box beam, the anchoring box beam is externally provided with cantilever limit plate, the cantilever limit plate and box beam contact surface setting limit flexible block.The Cantilever Bridges limiting device of the lossless installation of the bridge pier is limitation bridge direction across bridge displacement, prevents bridge from toppling unstable failure, under conditions of not damaging existing bridge pier, completes the device to the transversely strengthening of bridge.
Description
Technical field
The utility model relates to a kind of bridge fields, specifically provide a kind of Cantilever Bridges limit of lossless installation of bridge pier
Device.
Background technique
China occurs box beam ramp bridge pontic direction across bridge in provinces and cities such as the Inner Mongol, Tianjin, Harbin in succession and topples in recent years
The bridge collapse accident of unstability.The bridge of generation accident is continuous box girder, and middle transition pier uses unidirectional compression support, transition pier
Using unidirectional compression multi- supports.In the case where extreme loaded vehicle unbalance loading, Single column pier one-way support can only provide vertical constraint, cannot
Torsional restraint is provided.After the seat empty of transition pier side, top box beam has the tendency that torsion is toppled, if unbalance loading continues to add
It carries, when box beam reflexive support all fails, overturning occurs for top box beam.
Utility model content
In consideration of it, the purpose of this utility model is to provide a kind of Cantilever Bridges limiting device of the lossless installation of bridge pier,
To solve the problems, such as that torsional restraint cannot be provided in support in the prior art.
Technical solution provided by the utility model is: a kind of Cantilever Bridges limiting device of the lossless installation of bridge pier, comprising:
Bridge pier, support and box beam, the box beam are located above the bridge pier, and by connecting on the support and the bridge pier, described
Bridge pier upper end side surface is equipped with anchoring box beam, and arranges that anchorage box back portion is welded with connection along the bridge pier perimeter
Steel plate, is equipped with prestressing force spiral in the anchoring box beam, and after the completion of the anchoring box girder construction, tensioning spiral is right
It anchors box beam and applies circumferential pressure, the anchoring box beam is externally provided with cantilever limit plate, and is spread the wings shape steel plate using curve, described to hang
Arm limit plate and box beam contact surface setting limit flexible block have when guaranteeing when box beam displacement with limit flexible block collision
Certain buffering.
Preferably, the anchoring box beam and the bridge pier pass through epoxy resin glue sticking.
Further preferably, the limit flexible block uses the block of rubber.
Further preferably, the cantilever limit plate is thickness 20mm, jib-length 1.5m.
Further preferably, the upper junction steel plate with a thickness of 30mm.
Further preferably, the upper junction steel plate and the bridge pier top surface epoxy resin glue sticking.
Further preferably, the bridge pier is rectangle Single column pier.
The Cantilever Bridges limiting device of the lossless installation of bridge pier provided by the utility model, can limit bridge direction across bridge position
It moves, prevents bridge from toppling unstable failure, on the basis of not damaging existing bridge pier, complete the device to the transversely strengthening of bridge.
Detailed description of the invention
With reference to the accompanying drawing and embodiment is described in further detail the utility model:
Fig. 1 is a kind of this structural schematic diagram of the Cantilever Bridges limiting device of the lossless installation of bridge pier；
Fig. 2 is a kind of this top view of the Cantilever Bridges limiting device of the lossless installation of bridge pier；
In figure: 1, bridge pier；2, support；3, box beam；4, upper junction steel plate；5, prestressing force spiral；6, cantilever limit plate；
7, flexible block is limited；8, box beam is anchored.
Specific embodiment
The utility model is further explained below in conjunction with specific embodiment, but limitation is not originally practical
It is novel.
As shown in Figs. 1-2, the utility model provides a kind of Cantilever Bridges limiting device of lossless installation of bridge pier, packet
Include: bridge pier 1, support 2 and box beam 3, the box beam 3 are located at 1 top of bridge pier, and by the support 2 and the bridge pier 1
Connection, the 1 upper end side surface of bridge pier is equipped with anchoring box beam 8, and arranges along 1 perimeter of bridge pier, 8 top of anchoring box beam
It is welded with junction steel plate 4, is equipped with prestressing force spiral 5 in the anchoring box beam 8, after the completion of the anchoring box girder construction,
Tensioning spiral applies circumferential pressure to anchoring box beam, and the anchoring box beam 8 is externally provided with cantilever limit plate 6, and uses curve
Spread the wings shape steel plate, the cantilever limit plate 6 and box beam contact surface setting limit flexible block 7, guarantee when box beam 3 conjugates with
There is certain buffering when limit flexible block collision, wherein anchoring box beam 8 is rectangular cross section steel box-girder, steel plate wall thickness 20mm, anchoring
Box beam 8 arranges that annular brace is good along only column rectangle pier perimeter, and upper junction steel plate 4 is convenient for so that anchoring box beam 8 and bridge pier 1 connect
Connect stabilization, the curve that cantilever limit plate 6 uses is spread the wings the steel plate of type, is carried out torsional restraint, is located at cantilever limit plate 6 and box beam 3
Rubber block 7 between contact surface has certain buffering when colliding when conjugating convenient for guarantee bridge with limited block.
The anchoring box beam 8 passes through epoxy resin glue sticking, stable connection, convenient for sealing with the bridge pier 1.
The limit flexible block 7 is using the block of rubber, and due to being the rubber material of elasticity, buffering effect is good
It is good.
The cantilever limit plate 6 is thickness 20mm, jib-length 1.5m, and torsional restraint power is good.
The upper junction steel plate 4 with a thickness of 30mm, convenient for fixed reliable.
The upper junction steel plate 4 and 1 top surface of bridge pier epoxy resin glue sticking, are convenient for stable connection, leakproofness is good
It is good.
The bridge pier 1 is rectangle Single column pier, convenient for being easily installed around constraint.
Below with reference to actual job, device is easy for installation, without bar planting and destroys bridge pier structure, it is only to be suitable for built rectangle
Stub single support box beam can effectively limit top beam body lateral displacement.
Specific embodiment of the present utility model is write according to progressive mode, and each embodiment party is highlighted
The difference of case, similar portion can be with cross-reference.
The embodiments of the present invention is elaborated above in conjunction with attached drawing, but the utility model is not limited to
Above embodiment can also not depart from the utility model within the knowledge of a person skilled in the art
Various changes can be made under the premise of objective.
Claims (7)
1. a kind of Cantilever Bridges limiting device of the lossless installation of bridge pier characterized by comprising bridge pier (1), support (2) and
Box beam (3), the box beam (3) are located above the bridge pier (1), and by connecting on the support (2) and the bridge pier (1),
Bridge pier (1) the upper end side surface is equipped with anchoring box beam (8), and arranges along the bridge pier (1) perimeter, the anchoring box beam (8)
Top is welded with junction steel plate (4), is equipped with prestressing force spiral (5) in the anchoring box beam (8), and the anchoring box beam is applied
After the completion of work, tensioning spiral applies circumferential pressure to anchoring box beam, and the anchoring box beam (8) is externally provided with cantilever limit plate
(6), it and using curve spreads the wings shape steel plate, the cantilever limit plate (6) and box beam contact surface setting limit flexible block
(7), there is certain buffering when guaranteeing when box beam (3) displacement with limit flexible block collision.
2. a kind of Cantilever Bridges limiting device of the lossless installation of bridge pier according to claim 1, which is characterized in that described
It anchors box beam (8) and the bridge pier (1) and passes through epoxy resin glue sticking.
3. a kind of Cantilever Bridges limiting device of the lossless installation of bridge pier according to claim 1, which is characterized in that described
Limit the block that flexible block (7) use rubber.
4. a kind of Cantilever Bridges limiting device of the lossless installation of bridge pier according to claim 1, which is characterized in that described
Cantilever limit plate (6) is thickness 20mm, jib-length 1.5m.
5. a kind of Cantilever Bridges limiting device of the lossless installation of bridge pier according to claim 1, which is characterized in that described
Upper junction steel plate (4) with a thickness of 30mm.
6. a kind of Cantilever Bridges limiting device of the lossless installation of bridge pier according to claim 1, which is characterized in that described
Upper junction steel plate (4) and the bridge pier (1) top surface epoxy resin glue sticking.
7. a kind of Cantilever Bridges limiting device of the lossless installation of bridge pier according to claim 1, which is characterized in that described
Bridge pier (1) is rectangle Single column pier.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920291519.8U CN209703333U (en) | 2019-03-06 | 2019-03-06 | A kind of Cantilever Bridges limiting device of the lossless installation of bridge pier |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920291519.8U CN209703333U (en) | 2019-03-06 | 2019-03-06 | A kind of Cantilever Bridges limiting device of the lossless installation of bridge pier |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209703333U true CN209703333U (en) | 2019-11-29 |
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| CN201920291519.8U Active CN209703333U (en) | 2019-03-06 | 2019-03-06 | A kind of Cantilever Bridges limiting device of the lossless installation of bridge pier |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110777682A (en) * | 2019-12-06 | 2020-02-11 | 湘潭大学 | Anti-seismic reinforcing method for bridge transverse stop block |
| CN111996919A (en) * | 2020-08-28 | 2020-11-27 | 王一勋 | Town road bridge simple beam construction structures |
| CN112160231A (en) * | 2020-09-22 | 2021-01-01 | 扬州工业职业技术学院 | Connecting structure of simply supported beam bridge |
| CN112663511A (en) * | 2021-01-12 | 2021-04-16 | 山西省交通科技研发有限公司 | Implementation method for improving safety performance of single-column pier bridge |
| CN112663522A (en) * | 2021-01-12 | 2021-04-16 | 山西省交通科技研发有限公司 | Chemical treatment method for safety risk of single-column pier bridge |
-
2019
- 2019-03-06 CN CN201920291519.8U patent/CN209703333U/en active Active
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110777682A (en) * | 2019-12-06 | 2020-02-11 | 湘潭大学 | Anti-seismic reinforcing method for bridge transverse stop block |
| CN111996919A (en) * | 2020-08-28 | 2020-11-27 | 王一勋 | Town road bridge simple beam construction structures |
| CN112160231A (en) * | 2020-09-22 | 2021-01-01 | 扬州工业职业技术学院 | Connecting structure of simply supported beam bridge |
| CN112160231B (en) * | 2020-09-22 | 2022-01-28 | 扬州工业职业技术学院 | Connecting structure of simply supported beam bridge |
| CN112663511A (en) * | 2021-01-12 | 2021-04-16 | 山西省交通科技研发有限公司 | Implementation method for improving safety performance of single-column pier bridge |
| CN112663522A (en) * | 2021-01-12 | 2021-04-16 | 山西省交通科技研发有限公司 | Chemical treatment method for safety risk of single-column pier bridge |
| CN112663522B (en) * | 2021-01-12 | 2022-05-27 | 山西省交通科技研发有限公司 | Chemical treatment method for safety risk of single-column pier bridge |
| CN112663511B (en) * | 2021-01-12 | 2022-08-16 | 山西省交通科技研发有限公司 | Implementation method for improving safety performance of single-column pier bridge |
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| CP01 | Change in the name or title of a patent holder |
Address after: No.37 Wencui Road, Shenhe District, Shenyang, Liaoning 110016 Patentee after: Shenyang Municipal Engineering Design Research Institute Co., Ltd. Address before: No.37 Wencui Road, Shenhe District, Shenyang, Liaoning 110016 Patentee before: Shenyang Municipal Engineering Design and Research Institute Co., Ltd |