CN207537863U - A kind of combination beam prestress application connection structure - Google Patents
A kind of combination beam prestress application connection structure Download PDFInfo
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- CN207537863U CN207537863U CN201721384241.6U CN201721384241U CN207537863U CN 207537863 U CN207537863 U CN 207537863U CN 201721384241 U CN201721384241 U CN 201721384241U CN 207537863 U CN207537863 U CN 207537863U
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Abstract
The utility model discloses a kind of combination beam prestress application connection structures, connection structure includes multiple board unit pieces and corresponds fixed steel girder unit piece with the board unit piece, board unit piece includes concrete slab, more horizontal presstressed reinforcing steels are disposed in concrete slab, bottom is equipped with pre-embedded steel slab and high-strength bolt, and the adjacent two board unit pieces are by pouring fixation；Steel girder unit includes steel girder top plate, and the high-strength bolt sequentially passes through the steel girder top plate straight up, the pre-embedded steel slab enters in the concrete slab.The compressive pre-stress of presstressed reinforcing steel can be dexterously directly and efficiently all applied in concrete slab by the utility model, avoided being walked by steel girder point, improved the bearing capacity of concrete slab, significant effect.
Description
Technical field
The utility model is related to bridge floor construction, and in particular to a kind of combination beam prestress application connection structure.
Background technology
Steel concrete combination beam due to have many advantages, such as the convenient, cost of construction save, it is good without deck paving problem, durability, by
More and more extensive use, and fulcrum when hogging moment areas concrete slab when bearing hogging moment crack in tension, when span is little,
Fracture width can meet code requirement.
And as actual needs, combination beam span are gradually increasing, if do not taken the necessary measures, fracture width is difficult to control
System, common measure are by laying and tensioned prestressing bar in prefabricated board, to increase the compressive pre-stress in concrete.And by
In before tensioned prestressing bar, concrete slab is combined by WELDING STUDS with steel girder, because of steel girder section and rigidity accounting
More, the compressive pre-stress overwhelming majority of application is walked by steel girder point, additional to increase steel main beam stress, and only small part compressive pre-stress stays
It is stored in concrete slab, it is less efficient.
It can be seen that current steel concrete combination beam there are in concrete compressive pre-stress retain it is less the problem of.
Utility model content
Technical problem to be solved in the utility model is that there are the compressive pre-stresses in concrete for current steel concrete combination beam
Retain the problem of less.
In order to solve the above-mentioned technical problem, technical solution is answered in advance there is provided a kind of combination beam used by the utility model
Power applies connection structure, including：
Multiple board unit pieces including concrete slab, are disposed with more horizontal presstressed reinforcing steels in the concrete slab,
Bottom is equipped with pre-embedded steel slab and high-strength bolt, and the adjacent two board unit pieces are by pouring fixation；
Steel girder unit piece is corresponded with the board unit piece and is fixed, including steel girder top plate, the high intensity
Bolt sequentially passes through the steel girder top plate straight up, the pre-embedded steel slab enters in the concrete slab.
In another preferred embodiment, the steel girder top plate upper edge length direction is equipped with prepared screw-bolt hole,
The prepared screw-bolt hole is set in a row, and the number often arranged is six.
In another preferred embodiment, each presstressed reinforcing steel is contour, and is disposed side by side on the concrete slab
In the level of center, the top of the high-strength bolt is higher than the presstressed reinforcing steel.
In another preferred embodiment, the steel girder unit piece further includes steel kingpost baseplate, the steel girder bottom
Plate is fixed by vertical support plate and the steel girder top plate.
The compressive pre-stress of presstressed reinforcing steel dexterously directly and efficiently all can be applied to concrete slab by the utility model
It is interior, it avoids being walked by steel girder point, improves the bearing capacity of concrete slab, significant effect.
Description of the drawings
Fig. 1 is the structure diagram of the board unit piece of the utility model；
Fig. 2 is the structure diagram of the steel girder unit piece of the utility model；
Fig. 3 is the schematic cross-section of C-C in Fig. 2；
Fig. 4 is the structure diagram after the utility model installation
Fig. 5 is the schematic cross-section of D-D in Fig. 4.
Specific embodiment
The utility model is described in detail with Figure of description With reference to embodiment.
As shown in figures 1 and 3, a kind of combination beam prestress application connection structure provided by the utility model includes board
Unit piece and steel girder unit piece.Board unit piece is multiple, and including concrete slab 4, more water are disposed in concrete slab 4
Flat presstressed reinforcing steel 3, bottom are equipped with pre-embedded steel slab 1 and high-strength bolt 2, and two adjacent board unit pieces are solid by pouring
It is fixed.Steel girder unit piece is corresponded with board unit piece and is fixed, and including steel girder top plate 5, high-strength bolt 2 is straight up
Sequentially pass through steel girder top plate 5, pre-embedded steel slab 1 enters in concrete slab 4.
Concrete slab 4 is attached fixation, and can pass through by presstressed reinforcing steel 3 and high-strength bolt 2 with firm girder top plate
Tensioned prestressing bar 3 applies concrete slab 4 compressive pre-stress, simple in structure, easy for installation.
As shown in Figures 2 and 3,5 upper edge length direction of steel girder top plate is equipped with prepared screw-bolt hole 6, prepared screw-bolt hole 6
It sets in a row, and the number often arranged is six.The bonding strength of steel girder top plate 5 and concrete slab 4 can be increased by setting in a row, and
And the number often arranged is six, can effectively improve bonding strength.
Each presstressed reinforcing steel 3 is contour, and is disposed side by side in the center level of concrete slab 4, and the top of high-strength bolt 2 is high
In presstressed reinforcing steel 3.The performance of the bearing capacity of concrete can be maximized by being arranged on the center of concrete slab 4, and high-strength bolt 2
Top higher than presstressed reinforcing steel 3, effectively high-strength bolt 2 and the effect of presstressed reinforcing steel 3 mutually can be forced, enhancing structure
Stability improves the reliability of structure torque conduction.
As shown in Fig. 2, steel girder unit piece further includes steel kingpost baseplate, steel kingpost baseplate passes through vertical support plate and steel
Girder top plate 5 is fixed.The structure of steel girder unit piece is simple, mitigates dead weight to greatest extent, while can be carried out again with other component
It is fixed.
A kind of installation method of above-mentioned combination beam prestress application connection structure, specifically includes following steps：
Pre-embedded steel slab 1, high-strength bolt 2, concrete slab 4 are first made as board unit piece in advance；
Board unit piece is lifted to steel girder top plate 5 again, high-strength bolt 2 passes through elder generation after top plate prepared screw-bolt hole 6
It does not apply stubborn；
The wet seam 7 between board unit piece is poured, after wet seam 7 reaches intensity, tensioned prestressing bar 3, with right
Apply compressive pre-stress in concrete slab 4, stubborn high-strength bolt 2 is finally applied, to form combination beam overall structure.
Since the utility model is when preliminary fixed, board unit piece does not have not with the tentatively installation of steel girder top plate 5
It needs to tighten high-strength bolt 2, therefore, each board unit piece is very easy to operate when pouring, and can adjust in time each
From position, after the completion of pouring, each board unit piece is fixed, at this time tensioned prestressing bar 3 again, and presstressed reinforcing steel 3 will be pre-
Compression concentration is applied on concrete slab 4.
The compressive pre-stress of presstressed reinforcing steel dexterously directly and efficiently all can be applied to concrete slab by the utility model
It is interior, it avoids being walked by steel girder point, improves the bearing capacity of concrete slab, significant effect.
The utility model is not limited to above-mentioned preferred forms, and anyone should learn that under the enlightenment of the utility model
The structure change made, it is every that there is same or similar technical solution with the utility model, each fall within the guarantor of the utility model
Within the scope of shield.
Claims (4)
1. a kind of combination beam prestress application connection structure, which is characterized in that including：
Multiple board unit pieces including concrete slab, are disposed with more horizontal presstressed reinforcing steels, bottom in the concrete slab
Equipped with pre-embedded steel slab and high-strength bolt, the adjacent two board unit pieces are by pouring fixation；
Steel girder unit piece is corresponded with the board unit piece and is fixed, including steel girder top plate, the high-strength bolt
The steel girder top plate is sequentially passed through straight up, the pre-embedded steel slab enters in the concrete slab.
A kind of 2. combination beam prestress application connection structure as described in claim 1, which is characterized in that the steel girder top plate
Upper edge length direction is equipped with prepared screw-bolt hole, and the prepared screw-bolt hole is set in a row, and the number often arranged is six.
A kind of 3. combination beam prestress application connection structure as described in claim 1, which is characterized in that each presstressed reinforcing steel
It is contour, and be disposed side by side in the center level of the concrete slab, the top of the high-strength bolt is higher than the prestressing force
Muscle.
A kind of 4. combination beam prestress application connection structure as described in claim 1, which is characterized in that the steel girder unit
Part further includes steel kingpost baseplate, and the steel kingpost baseplate is fixed by vertical support plate and the steel girder top plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721384241.6U CN207537863U (en) | 2017-10-25 | 2017-10-25 | A kind of combination beam prestress application connection structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721384241.6U CN207537863U (en) | 2017-10-25 | 2017-10-25 | A kind of combination beam prestress application connection structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207537863U true CN207537863U (en) | 2018-06-26 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201721384241.6U Active CN207537863U (en) | 2017-10-25 | 2017-10-25 | A kind of combination beam prestress application connection structure |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107780334A (en) * | 2017-10-25 | 2018-03-09 | 中铁大桥勘测设计院集团有限公司 | A kind of combination beam prestress application attachment structure and its installation method |
| CN110486039A (en) * | 2019-09-26 | 2019-11-22 | 西南交通大学 | A kind of multiduty shield tunnel lining structure |
-
2017
- 2017-10-25 CN CN201721384241.6U patent/CN207537863U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107780334A (en) * | 2017-10-25 | 2018-03-09 | 中铁大桥勘测设计院集团有限公司 | A kind of combination beam prestress application attachment structure and its installation method |
| CN110486039A (en) * | 2019-09-26 | 2019-11-22 | 西南交通大学 | A kind of multiduty shield tunnel lining structure |
| CN110486039B (en) * | 2019-09-26 | 2024-05-07 | 西南交通大学 | Multipurpose shield tunnel lining structure |
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