CN202577129U - Negative moment beam bellows connector device for continuous beam bridge - Google Patents
Negative moment beam bellows connector device for continuous beam bridge Download PDFInfo
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- CN202577129U CN202577129U CN 201220155241 CN201220155241U CN202577129U CN 202577129 U CN202577129 U CN 202577129U CN 201220155241 CN201220155241 CN 201220155241 CN 201220155241 U CN201220155241 U CN 201220155241U CN 202577129 U CN202577129 U CN 202577129U
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Abstract
The utility model relates to a continuous beam bridge bellows connecting device for simple support first and then continuous construction in the field of construction of city bridges or roads and bridges, in particular to a negative moment bellows connecting device during construction of a cast-in-place wet connector. The technical scheme is as follows: a negative moment beam bellows connector device for a continuous beam bridge is provided with a tubular structure with a big end and a small end, wherein the big end can be spliced and matched with a negative moment beam bellows; the negative moment beam bellows connector device for the continuous beam bridge is preferably a polyethylene (PE) plastic connector; the length of the small end thereof is 20 cm; the length of the big end thereof is 25 cm; and the length of a transitional section is 5-10 cm. The negative moment beam bellows connector device for the continuous beam bridge is simple in structure, convenient to use and low in cost; and particularly, the bellows connecting effect is good, so that the rustiness of a prestressed steel strand caused by the grouting insufficiency and the grouting difficulty because slurry enters the bellows in the concrete casting process due to the poor bellows connecting effect can be avoided, and the durability and service life of a bridge structure can be improved.
Description
Technical field
The utility model relates to " behind the first freely-supported continuously " the continuous girder bridge corrugated pipe connecting device in Urban Bridge or the highway bridge construction field, the linkage that the hogging moment bellows connects when relating in particular to cast-in-place wet joint construction.
Background technology
Hogging moment bellows in the past " behind the first freely-supported continuously " the cast-in-place wet joint of continuous girder bridge position connects; The general method that adopts is that the hogging moment bellows of when beam slab is prefabricated, installing stretches out beam slab termination certain-length, as the overlap of the bellows that connects two beams.The hogging moment bellows of installing when beam slab is prefabricated stretches out the beam slab termination; Protection difficulty when in the prefabricated process of beam slab, removing beam slab termination template; The hogging moment bellows that will stretch out the beam slab termination through regular meeting destroys, is out of shape even bump disconnected, and often all is that root at extension fractures when fractureing.It is bad to cause bellows to connect effect, and joint spillage when cast-in-place wet joint is constructed influences follow-up stretch-draw, the construction of mud jacking operation.Cause easily that stretching force is not enough, mud jacking is not full, even the situation of local mud jacking cavity, anhydrous mud occurs.Because of the not enough supporting capacity that can reduce bridge of stretching force that the corrugated pipe connector spillage causes, mud jacking is discontented with the easy corrosion of steel strand, has a strong impact on the durability of bridge, even causes quality accident easily.
Summary of the invention
The purpose of the utility model is inconvenience, the insecure problem that in construction, exists according to existing hogging moment bellows connected mode; A kind of hogging moment corrugated pipe connecting device simple in structure, easy to use, with low cost is provided, i.e. the corrugated pipe connector device.
Its technical scheme is: piecing devices are the concentric reducer tubular structure, and wherein big end can be pegged graft with hogging moment bundle bellows and cooperated.Its use is: the small end of piecing devices is connected with beam body inner corrugated pipe, and connected mode is the same with the connection between the common bellows, and the big end of piecing devices stretches out the beam-ends template, and slurry stream is gone into bellows when preventing concreting.Behind the beam slab hoisted in position; When needing steel strand before the cast-in-place wet joint construction; The pre-buried same hogging moment bellows of intercepting and beam body; Its length slightly is longer than corresponding beam slab top board distance (length according to the big end of joint is suitably selected), this section bellows one end is inserted in the big end of corrugated pipe connector of arbitrary beam slab of corresponding two beam slabs.After the steel strand lashing was accomplished, in the big end with the corrugated pipe connector of another beam slab of other end insertion after the pumpback of this section bellows, this moment, the two ends of bellows were plugged on respectively in the big end of two joints.Last back is accomplished bellows and is connected with the slit between cotton-wool, geotextiles or fluid sealant shutoff bellows and the corrugated pipe connector.
Consider that from the convenience and the cost that use described piecing devices are the polythene PE adapter of plastic, its small end length 20cm holds length 25cm greatly, transition section length 5-10cm.
The implementation result of the utility model: the bellows coupling part that the utility model has avoided existing bridge precast beam plate to reserve fractures, causes bellows to connect difficult situation easily, can well guarantee the connection effect of bellows.For applying with mud jacking, prestressing force in the cast-in-place wet joint construction brings convenience; Help the assurance of hogging moment pre-stress construction quality, advance the not full problem that causes the prestress wire corrosion of mud jacking difficulty mud jacking that slurry causes in the bellows in the time of particularly avoiding connecting bad, concreting because of bellows; Thereby help improving the durability and the service life of bridge construction.Piecing devices adopt the polythene PE material, and manufacture craft is simple, can easily be made into various models, and low price, both can connect the bellows of PE material, also can connect corrugated steel pipe.
Description of drawings
Fig. 1 is a corrugated pipe connector device elevational schematic view;
Fig. 2 is a corrugated pipe connector device floor map;
Fig. 3 is a corrugated pipe connector device sectional schematic diagram;
Corrugated pipe connector device scheme of installation during Fig. 4 precast beam;
The cast-in-place wet joint of Fig. 5 bellows method of attachment constantly sketch map 1;
The cast-in-place wet joint of Fig. 6 bellows method of attachment constantly sketch map 2;
Among the figure: 1, the small end of piecing devices, 2, the big end of piecing devices, 3, the variation changeover portion of piecing devices; 4, common bellows in the beam body, 5, the beam slab roof plate template, 6, beam slab body template; 7, common bellows is used in cast-in-place wet joint connection; 8, beam slab top board, 9, prefabricated beam slab, 10, the slit between linkage and the bellows.
The specific embodiment
Below in conjunction with accompanying drawing and instantiation the utility model is described further, but not as the qualification of the utility model.
With reference to Fig. 1-3, a kind of continuous girder bridge hogging moment bundle corrugated pipe connector device is because bellows adopts oblate corrugated duct in the present embodiment; Therefore the piecing devices structure is a concentric reducer flat tube shape structure, and wherein the radial dimension of the small end 1 of piecing devices is identical with conventional corrugated pipe connector, such as selecting than the big model of bellows that connects; Be convenient to normally be connected with bellows; 20 centimetres of length, the big end 2 of piecing devices is bigger slightly 0.5 to 1 centimetre than small end, is convenient to peg graft with bellows; 25 centimetres of length, variation changeover portion 3 length of piecing devices are 5 to 10 centimetres.
With reference to Fig. 4, when pre-buried bellows was installed in the beam slab, common bellows 4 was connected in the small end 1 of piecing devices and the beam body, and connected mode is the same with the connection between the common bellows.The big end 2 of piecing devices stretches out beam slab roof plate template 5, and slurry stream is gone into bellows when preventing concreting.
With reference to Fig. 5-6; Behind the beam slab hoisted in position; When needing steel strand before the cast-in-place wet joint construction; The pre-buried same cast-in-place wet joint of intercepting and beam body is connected with common bellows 7, and its length is than 20 centimetres of two corresponding beam slab top board 8 distances, with the big end of the corrugated pipe connector device on the left side beam slab top board 8 of corresponding two beam slabs 9 of this section bellows 7 insertions 2 interior 20 centimetres.After the steel strand lashing is accomplished, the big end 3 of the corrugated pipe connector device that the right side beam slab works on regular shifts is inserted in 10 centimetres of bellows 7 pumpbacks, the big end 3 interior 10 centimetres of two piecing devices about this moment, bellows inserted respectively.Use the slit 10 between cotton-wool, geotextiles or fluid sealant shutoff bellows 7 and the big end 3 of corrugated pipe connector at last, accomplish bellows and connect.
Except that the described technical characterictic of manual, be the known technology of those skilled in the art.
Claims (2)
1. continuous girder bridge hogging moment bundle corrugated pipe connector device, it is characterized in that: described piecing devices are the concentric reducer tubular structure, wherein big end can be pegged graft with hogging moment bundle bellows and cooperated.
2. continuous girder bridge hogging moment bundle corrugated pipe connector device according to claim 1, it is characterized in that: described piecing devices are the polythene PE adapter of plastic, its small end length 20cm holds length 25cm greatly, transition section length 5-10cm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220155241 CN202577129U (en) | 2012-04-13 | 2012-04-13 | Negative moment beam bellows connector device for continuous beam bridge |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220155241 CN202577129U (en) | 2012-04-13 | 2012-04-13 | Negative moment beam bellows connector device for continuous beam bridge |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202577129U true CN202577129U (en) | 2012-12-05 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220155241 Expired - Fee Related CN202577129U (en) | 2012-04-13 | 2012-04-13 | Negative moment beam bellows connector device for continuous beam bridge |
Country Status (1)
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| CN (1) | CN202577129U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103938533A (en) * | 2013-01-23 | 2014-07-23 | 上海市城市建设设计研究总院 | Simple-supported continuous structure and construction method thereof |
| CN104005340A (en) * | 2014-06-12 | 2014-08-27 | 中铁六局集团天津铁路建设有限公司 | Construction method for threading full-length prestressed steel strands of continuous beam |
| CN110468682A (en) * | 2019-09-04 | 2019-11-19 | 中铁第四勘察设计院集团有限公司 | A kind of precast segment assembly bridge joint structure and its construction method |
-
2012
- 2012-04-13 CN CN 201220155241 patent/CN202577129U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103938533A (en) * | 2013-01-23 | 2014-07-23 | 上海市城市建设设计研究总院 | Simple-supported continuous structure and construction method thereof |
| CN103938533B (en) * | 2013-01-23 | 2016-01-20 | 上海市城市建设设计研究总院 | The construction method of Simply supported non-uniform structure |
| CN104005340A (en) * | 2014-06-12 | 2014-08-27 | 中铁六局集团天津铁路建设有限公司 | Construction method for threading full-length prestressed steel strands of continuous beam |
| CN110468682A (en) * | 2019-09-04 | 2019-11-19 | 中铁第四勘察设计院集团有限公司 | A kind of precast segment assembly bridge joint structure and its construction method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CB03 | Change of inventor or designer information |
Inventor after: Li Chunhui Inventor after: Jie Xiumei Inventor after: Zhang Shaoquan Inventor after: Gao Feng Inventor after: Di Zhipeng Inventor before: Yu Gang Inventor before: Wang Weikai Inventor before: Li Chunhui Inventor before: Li Lei Inventor before: Xie Xiumei |
|
| CB03 | Change of inventor or designer information | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20170629 Address after: 257000, the Yellow River Road, Dongying District, Shandong City, Dongying Province, planning five West Road Science and technology enterprise accelerator E2-4-403 Patentee after: Shandong Keda infrastructure Co., Ltd. Address before: 257091 Shandong city of Dongying province Dongying District Front Street No. 65 Patentee before: Keda Group Co., Ltd. |
|
| TR01 | Transfer of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20121205 Termination date: 20200413 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |