CN206916603U - A kind of transverse prestress I-shaped box-beam structure - Google Patents
A kind of transverse prestress I-shaped box-beam structure Download PDFInfo
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- CN206916603U CN206916603U CN201720812932.5U CN201720812932U CN206916603U CN 206916603 U CN206916603 U CN 206916603U CN 201720812932 U CN201720812932 U CN 201720812932U CN 206916603 U CN206916603 U CN 206916603U
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Abstract
A kind of transverse prestress I-shaped box-beam structure, it is by multiple I-beams（1）Combination is formed, and I-beam is longitudinally arranged, and joint concrete is humidified between two I-beam top plates（2）, multiple concrete diaphragm plates are set in each I-beam（6）, the position that concrete diaphragm plate is set in each I-beam sets horizontal reserving hole channel（5）, transversely prestressed bars are set in above-mentioned reserving hole channel（3）, joint concrete is also humidified in two I-beam back plate connections（2）, I-beam bottom plate, which corresponds to above-mentioned concrete diaphragm plate connection position and installed, pours preformed hole（8）.The present apparatus is rational in infrastructure, and its transversely prestressed bars form a prestressed network frame with longitudinal prestressing muscle, add the integral rigidity of bridge structure, greatly improves the resistance to overturning and durability of bridge structure, reduces maintenance cost.It is easy for construction, can be a small amount of cast-in-place in elder generation of factory precast H-beam, then at the scene, quality is easily controlled, convenient transportation, saves construction cost.
Description
Technical field
A kind of bridge superstructure combined by prefabricated components of Mid and minor spans is the utility model is related to, specifically laterally
Prestressing force I-shaped box-beam structure.
Background technology
At present, Mid and minor spans highway bridge uses longitudinal prestressing hollow slab girder or non-longitudinal prestressed cored slab mostly
Beam, because hollow slab girder only has top to twist seam connection by cast-in-place, and bottom does not have any connection.Bridge floor is in the presence of vehicle
It is very easy to longitudinal crack occur, forms single slab bearing situation, had a strong impact on normal use and the operation of bridge, added foster
Maintenance cost and difficulty are protected, shortens the service life of bridge.Therefore research and innovation is carried out very to existing hollow slab beam structure
It is significant.
The content of the invention
The purpose of this utility model be to provide it is a kind of apply transverse prestress I-shaped box-beam structure, its is rational in infrastructure, applies
Work is convenient, and applies transverse prestress axle casing superstructure good integrity, can effectively prevent bridge structure and veneer occurs
Stress, conjunction old and new concret face and Problems of Longitudinal Cracks caused by wet joint concrete self-constriction, improve bridge structure
Bulk strength and durability.
The technical solution of the utility model is as follows：
A kind of transverse prestress I-shaped box-beam structure, it is combined by multiple I-beams and formed, and I-beam is longitudinally arranged,
Joint concrete is humidified between two I-beam top plates, multiple concrete diaphragm plates are set in each I-beam, in each I-beam
If the position of concrete diaphragm plate sets horizontal reserving hole channel, transversely prestressed bars are set in above-mentioned reserving hole channel, it is horizontal in side bar
Anchorage anchoring is set outside presstressed reinforcing steel；Joint concrete is also humidified in two I-beam back plate connections, I-beam bottom plate is corresponding
Above-mentioned concrete diaphragm plate connection position, which installs, pours preformed hole, a plurality of longitudinal prestressing muscle is set on I-beam bottom plate, in I-shaped
A plurality of longitudinal regular reinforcement is set on the top plate of beam, above-mentioned I-beam top plate outer end sets wet seam connection reinforcing bar.
The position that above-mentioned each I-beam sets concrete diaphragm plate sets upper and lower 2 horizontal preformed holes
Road, 2 horizontal reserving hole channels are respectively provided at the top and bottom of the web of I-beam, concrete diaphragm plate and I-shaped
Beam correspondence position sets horizontal reserving hole channel.
Above-mentioned concrete diaphragm plate both ends set concrete diaphragm plate connection reinforcing bar.
The utility model has the advantage of：1st, it is rational in infrastructure, transversely prestressed bars and the longitudinal prestressing muscle shape of the present apparatus
Into a prestressed network frame, the uneven load action between adjustment beam is served, adds the entirety of bridge structure
Rigidity, reduce section deformation.The resistance to overturning and durability of bridge structure are greatly improved, improves the antitorque stabilization of beam body
Property.
2nd, it is easy for construction, transverse prestress I-shaped box-beam structure, it can use in elder generation of factory precast H-beam structure again existing
By its it is cast-in-place be box-beam structure, thus cast-in-place amount is small, and quality is easily controlled, convenient transportation, saving construction cost.
3rd, maintenance cost is reduced, maintenance number of the bridge superstructure within service life can be reduced, reduce dimension
Accomplish this, improve the service level of road.
4th, improve the life-span, can effectively solve the problem that bridge superstructure single slab bearing problem, conjunction old and new concret face and
Problems of Longitudinal Cracks caused by wet joint concrete self-constriction, each beam is firmly connected into an entirety, reduce prestressing force
Loss, improve the resistance to overturning of bridge structure.Box beam single slab bearing and bridge top plate longitudinal cracking can be effectively prevent, is carried
The service life of high bridge structure.
Brief description of the drawings
Fig. 1 is the utility model embodiment three dimensional structure diagram；
Fig. 2 is Fig. 1 upward view；
Fig. 3 is that I-beam makees central sill cross-sectional view；
Fig. 4 is that I-beam makees left side beam cross-sectional view；
Fig. 5 is that I-beam makees the right beam cross-sectional view.
Embodiment
The utility model is described in further detail below in conjunction with the accompanying drawings.
In Fig. 1~5,1, I-beam；2nd, wet joint concrete；3rd, transversely prestressed bars；4th, anchorage；5th, reserving hole channel；6、
Concrete diaphragm plate；7th, longitudinal prestressing muscle；8th, preformed hole is poured；9th, wet seam connection reinforcing bar；10th, concrete diaphragm plate connects
Reinforcing bar；11st, longitudinal regular reinforcement.
It can see by Fig. 1~Fig. 5, this transverse prestress I-shaped box-beam structure, the structure is combined by multiple I-beams 1
Form, I-beam is longitudinally arranged, and multiple concrete diaphragm plates 6 are set in each I-beam, adds between two I-beam top plates
Wet joint concrete 2, I-beam top plate outer end set wet seam connection reinforcing bar 9；The position of concrete diaphragm plate is set in each I-beam
Horizontal reserving hole channel 5 is installed, transversely prestressed bars 3 are set in above-mentioned reserving hole channel, the both ends of transversely prestressed bars are by the anchor of anchorage 4
Gu；Joint concrete 2 is also humidified in the back plate connections of two I-beams, above-mentioned concrete diaphragm plate is corresponded on I-beam bottom plate
Connection position, which installs, pours preformed hole 8, and a plurality of longitudinal prestressing muscle 7 is set on I-beam bottom plate, is set on the top plate of I-beam more
Bar longitudinal direction regular reinforcement 11, concrete diaphragm plate both ends set concrete diaphragm plate connection reinforcing bar 10.
By Fig. 3~5, it can be seen that, the position that above-mentioned each I-beam sets concrete diaphragm plate is set
Upper and lower 2 horizontal 5,2 horizontal reserving hole channels of reserving hole channel be respectively provided at the web of I-beam top and under
Portion, concrete diaphragm plate set horizontal reserving hole channel with I-beam correspondence position.
Above-mentioned transversely prestressed bars 3 are prestressing with bond muscle, and its construction technology uses post stretching tensioned prestressing bar.
It is regular screw threads reinforcing bar that wet seam connection reinforcing bar 9, which connects reinforcing bar 10 with concrete diaphragm plate,.
It is described above, only it is preferred embodiment of the present utility model, not the utility model is imposed any restrictions, every
Any simple modification, change and the equivalent structure change made according to the utility model technical spirit to above example, still
Belong in the protection domain of technical solutions of the utility model.
Claims (3)
- A kind of 1. transverse prestress I-shaped box-beam structure, it is characterised in that：It is by multiple I-beams（1）Combination is formed, I-beam It is longitudinally arranged, humidify joint concrete between two I-beam top plates（2）, multiple concrete tabulas are set in each I-beam Plate（6）, the position that concrete diaphragm plate is set in each I-beam sets horizontal reserving hole channel（5）, horizontal stroke is set in above-mentioned reserving hole channel To presstressed reinforcing steel（3）, anchorage is set outside side bar transversely prestressed bars（4）Anchoring；Also add in two I-beam back plate connections Wet joint concrete（2）, I-beam bottom plate, which corresponds to above-mentioned concrete diaphragm plate connection position and installed, pours preformed hole（8）, in I-shaped A plurality of longitudinal prestressing muscle is set on beam bottom plate（7）, a plurality of longitudinal regular reinforcement is set on the top plate of I-beam（11）, above-mentioned I-shaped Back plate outer end sets wet seam connection reinforcing bar（9）.
- 2. transverse prestress I-shaped box-beam structure according to claim 1, it is characterised in that：Its each I-beam sets mixed Coagulate native diaphragm plate（6）Position set upper and lower 2 horizontal reserving hole channels（5）, 2 horizontal reserving hole channels are respectively provided at I-beam The top and bottom of web, concrete diaphragm plate set horizontal reserving hole channel with I-beam correspondence position.
- 3. transverse prestress I-shaped box-beam structure according to claim 1, it is characterised in that：Its above-mentioned concrete tabula Plate（6）Both ends set concrete diaphragm plate connection reinforcing bar（10）.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720812932.5U CN206916603U (en) | 2017-07-06 | 2017-07-06 | A kind of transverse prestress I-shaped box-beam structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720812932.5U CN206916603U (en) | 2017-07-06 | 2017-07-06 | A kind of transverse prestress I-shaped box-beam structure |
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| CN206916603U true CN206916603U (en) | 2018-01-23 |
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| CN201720812932.5U Active CN206916603U (en) | 2017-07-06 | 2017-07-06 | A kind of transverse prestress I-shaped box-beam structure |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107142829A (en) * | 2017-07-06 | 2017-09-08 | 内蒙古综合交通科学研究院有限责任公司 | A kind of transverse prestress I-shaped box-beam structure |
| CN108277733A (en) * | 2018-01-31 | 2018-07-13 | 重庆交通大学 | The small fabricated box girder bridge and preparation method thereof that hinge seam deterioration influences can be resisted |
| CN108943378A (en) * | 2018-06-07 | 2018-12-07 | 广州市市政工程设计研究总院有限公司 | A kind of method for prefabricating of UHPC small box girder end tabula |
| CN108943374A (en) * | 2018-06-07 | 2018-12-07 | 广州市市政工程设计研究总院有限公司 | A kind of method for prefabricating of pre-buried steel board-like UHPC small box girder end tabula |
-
2017
- 2017-07-06 CN CN201720812932.5U patent/CN206916603U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107142829A (en) * | 2017-07-06 | 2017-09-08 | 内蒙古综合交通科学研究院有限责任公司 | A kind of transverse prestress I-shaped box-beam structure |
| CN108277733A (en) * | 2018-01-31 | 2018-07-13 | 重庆交通大学 | The small fabricated box girder bridge and preparation method thereof that hinge seam deterioration influences can be resisted |
| CN108943378A (en) * | 2018-06-07 | 2018-12-07 | 广州市市政工程设计研究总院有限公司 | A kind of method for prefabricating of UHPC small box girder end tabula |
| CN108943374A (en) * | 2018-06-07 | 2018-12-07 | 广州市市政工程设计研究总院有限公司 | A kind of method for prefabricating of pre-buried steel board-like UHPC small box girder end tabula |
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