CN214613648U - Assembled case roof beam overlap joint node of atress equilibrium - Google Patents
Assembled case roof beam overlap joint node of atress equilibrium Download PDFInfo
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- CN214613648U CN214613648U CN202120712592.5U CN202120712592U CN214613648U CN 214613648 U CN214613648 U CN 214613648U CN 202120712592 U CN202120712592 U CN 202120712592U CN 214613648 U CN214613648 U CN 214613648U
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- roof beam
- box girder
- case roof
- protruding portion
- fixed
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- 230000002787 reinforcement Effects 0.000 claims description 5
- 230000006978 adaptation Effects 0.000 claims 1
- 238000010276 construction Methods 0.000 abstract description 16
- 229910000831 Steel Inorganic materials 0.000 abstract description 5
- 239000010959 steel Substances 0.000 abstract description 5
- 238000005516 engineering process Methods 0.000 abstract description 4
- 238000000034 method Methods 0.000 description 6
- 230000009471 action Effects 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 230000008901 benefit Effects 0.000 description 2
- 238000005266 casting Methods 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 230000004075 alteration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000011440 grout Substances 0.000 description 1
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Abstract
The utility model discloses an assembled case roof beam overlap joint node that atress is balanced, including first case roof beam, second case roof beam and prestressing steel, first case roof beam sets up the left side at the second case roof beam, first case roof beam passes through prestressing steel with the second case roof beam and fixes, the left side of first case roof beam is fixed with the protruding portion, go up the protruding portion and fill through the concrete grouting material with the junction of second case roof beam, the right side of second case roof beam is fixed with down the protruding portion. This balanced assembled case roof beam overlap joint node of atress makes adjacent case roof beam overlap joint through last protruding portion and lower protruding portion, and make it fix through the bolt, the connecting plate makes first case roof beam fixed with lower protruding portion simultaneously, the second case roof beam passes through concrete placement with the seam crossing of last protruding portion, thereby make connection structure between the adjacent case roof beam more stable, and the protruding portion has saved the complicated technology of lower part die holding down, the construction degree of difficulty has been reduced, construction cost has been practiced thrift.
Description
Technical Field
The utility model relates to a bridge engineering technical field specifically is an assembled case roof beam overlap joint node that atress is balanced.
Background
At present, the traditional cast-in-place construction or prefabricated box girder splicing construction is mainly adopted in bridge construction in China. Traditional cast-in-place construction enables the component to meet the load bearing requirements through post-cast concrete or grouting techniques. But there are more wet operations when the concrete construction of post-cast, the time limit for a project is too long, and in case damage also is difficult to restore, and economic benefits is lower, compares in situ casting construction, and the single on-the-spot connection construction of precast box girder is comparatively convenient.
The connecting effect of the precast box girder in the prior art is not good, and the side surface is difficult to install in a cast-in-place manner, so that the box girder cannot meet the design requirement due to the fact that the mould is easily expanded in the concrete pouring process.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a balanced assembled case roof beam overlap joint node of atress can make the connection structure between the adjacent case roof beam more stable to save lower part die mounting's complicated technology, reduced the construction degree of difficulty, practiced thrift construction cost's advantage, can solve the problem among the prior art.
In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a balanced assembled case roof beam overlap joint node of atress, includes first case roof beam, second case roof beam and prestressing steel, first case roof beam sets up the left side at the second case roof beam, first case roof beam passes through prestressing steel with the second case roof beam and fixes, the left side of first case roof beam is fixed with the protruding portion, it fills through the concrete grout material with the junction of second case roof beam to go up the protruding portion, the right side of second case roof beam is fixed with down the protruding portion, the upper surface of protruding portion contacts with the lower surface of last protruding portion down, the right side of protruding portion contacts with the left side of first case roof beam down, first case roof beam is provided with the connecting plate with the seam crossing of protruding portion down, the connecting plate passes through the fix with screw with first case roof beam, go up protruding portion, protruding portion and connecting plate pass through the bolt fastening down.
Preferably, the first box girder and the second box girder are all prefabricated into a hollow box body by bottom plates, web plates and bridge decks.
Preferably, the upper protruding part is integrally cast with the first box girder, and the lower protruding part is integrally cast with the second box girder.
Preferably, the screws are embedded in the first box girder, and the connecting plate is provided with first through holes matched with the screws.
Preferably, the upper protruding portion, the lower protruding portion and the connecting plate are all provided with second through holes matched with bolts, and the top ends of the bolts are flush with the upper surface of the upper protruding portion.
Compared with the prior art, the beneficial effects of the utility model are as follows:
this balanced assembled case roof beam overlap joint node of atress makes adjacent case roof beam overlap joint through last protruding portion and lower protruding portion, and make it fix through the bolt, the connecting plate makes first case roof beam fixed with lower protruding portion simultaneously, the second case roof beam passes through concrete placement with the seam crossing of last protruding portion, thereby make connection structure between the adjacent case roof beam more stable, and the protruding portion has saved the complicated technology of lower part die holding down, the construction degree of difficulty has been reduced, construction cost has been practiced thrift.
Drawings
Fig. 1 is a schematic perspective view of the present invention;
fig. 2 is a schematic top view of the present invention;
fig. 3 is a schematic cross-sectional view taken along line a-a of fig. 2 according to the present invention;
fig. 4 is an enlarged schematic structural diagram of a point a in fig. 3 according to the present invention.
In the figure: 1. a first box girder; 2. a second box girder; 3. pre-stressing the steel bars; 4. an upper protrusion; 5. a lower protrusion; 6. a connecting plate; 7. a screw; 8. a bolt; 9. a first through hole; 10. a second via.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
Referring to fig. 1-4, an assembled box girder lap joint with balanced stress comprises a first box girder 1, a second box girder 2 and prestressed reinforcement 3, wherein the first box girder 1 and the second box girder 2 are both prefabricated into a hollow box body by a bottom plate, a web plate and a bridge deck, the first box girder 1 is arranged at the left side of the second box girder 2, the first box girder 1 and the second box girder 2 are fixed by the prestressed reinforcement 3, the left side of the first box girder 1 is fixed with an upper protruding part 4, the upper protruding part 4 and the first box girder 1 are integrally cast, the joint of the upper protruding part 4 and the second box girder 2 is filled with concrete, so that the joint of the box girders is firmer and more reliable, compared with a single connection mode, the multi-combination connection mode is firmer and more durable, the right side of the second box girder 2 is fixed with a lower protruding part 5, the lower protruding part 5 and the second box girder 2 are integrally cast, the second box girder 2 and the first box girder 1 are sequentially installed, the upper protruding portion 4 is pressed on the upper surface of the lower protruding portion 5, the upper surface of the lower protruding portion 5 is in contact with the lower surface of the upper protruding portion 4, the right side of the lower protruding portion 5 is in contact with the left side of the first box girder 1, a connecting plate 6 is arranged at the joint of the first box girder 1 and the lower protruding portion 5, the connecting plate 6 is fixed with the first box girder 1 through a screw 7, the screw 7 is embedded in the first box girder 1, a first through hole 9 matched with the screw 7 is formed in the connecting plate 6, the upper protruding portion 4, the lower protruding portion 5 and the connecting plate 6 are fixed through a bolt 8, second through holes 10 matched with the bolt 8 are formed in the upper protruding portion 4, the top end of the bolt 8 is flush with the upper surface of the upper protruding portion 4, and the connecting plate 6 is attached to the joint of the lower protruding portion 5 and the first box girder 1 and fixed through the screw 7 and the bolt 8.
The working principle is as follows: this balanced assembled case roof beam overlap joint node of atress, when the construction installation, at first install second case roof beam 2 and first case roof beam 1 in proper order, and make and go up protruding portion 4 and press the upper surface of protruding portion 5 down, it is corresponding with second through-hole 10 on the protruding portion 5 down to go up protruding portion 4 this moment, then laminate connecting plate 6 in the seam crossing of protruding portion 5 and first case roof beam 1 down, and fix through screw 7 and bolt 8, accomplish the preliminary installation of second case roof beam 2 and first case roof beam 1 this moment, then fix prestressing reinforcement 3 on first case roof beam 1 and the second case roof beam 2 together, the gap between last protruding portion 4 and the second case roof beam 2 is through the concrete work of casting.
In summary, the following steps: this balanced assembled case roof beam overlap joint node of atress makes adjacent case roof beam overlap joint through last protruding portion 4 and protruding portion 5 down, and make it fix through bolt 8, connecting plate 6 makes first case roof beam 1 fixed with protruding portion 5 down simultaneously, second case roof beam 2 passes through concrete placement with the seam crossing of last protruding portion 4, thereby make the connection structure between the adjacent case roof beam more stable, and protruding portion 5 has saved the complicated technology of lower part die holding down, the construction degree of difficulty has been reduced, construction cost has been practiced thrift.
It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (5)
1. An assembly type box girder lap joint node with balanced stress comprises a first box girder (1), a second box girder (2) and prestressed reinforcements (3), and is characterized in that the first box girder (1) is arranged on the left side of the second box girder (2), the first box girder (1) and the second box girder (2) are fixed through the prestressed reinforcements (3), an upper protruding part (4) is fixed on the left side of the first box girder (1), the joint of the upper protruding part (4) and the second box girder (2) is filled with concrete grouting material, a lower protruding part (5) is fixed on the right side of the second box girder (2), the upper surface of the lower protruding part (5) is in contact with the lower surface of the upper protruding part (4), the right side of the lower protruding part (5) is in contact with the left side of the first box girder (1), and a joint of the first box girder (1) and the lower protruding part (5) is provided with a connecting plate (6), the connecting plate (6) is fixed with the first box girder (1) through a screw (7), and the upper protruding part (4), the lower protruding part (5) and the connecting plate (6) are fixed through a bolt (8).
2. The force-balanced fabricated box girder lap joint according to claim 1, wherein: the first box girder (1) and the second box girder (2) are all prefabricated into a hollow box body by bottom plates, web plates and bridge decks.
3. The force-balanced fabricated box girder lap joint according to claim 1, wherein: the upper protruding portion (4) and the first box girder (1) are integrally cast, and the lower protruding portion (5) and the second box girder (2) are integrally cast.
4. The force-balanced fabricated box girder lap joint according to claim 1, wherein: the screw (7) is embedded in the first box girder (1), and a first through hole (9) matched with the screw (7) is formed in the connecting plate (6).
5. The force-balanced fabricated box girder lap joint according to claim 1, wherein: go up protruding portion (4), lower protruding portion (5) and connecting plate (6) and all offer second through-hole (10) with bolt (8) looks adaptation, the top of bolt (8) and the upper surface parallel and level of last protruding portion (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120712592.5U CN214613648U (en) | 2021-04-08 | 2021-04-08 | Assembled case roof beam overlap joint node of atress equilibrium |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120712592.5U CN214613648U (en) | 2021-04-08 | 2021-04-08 | Assembled case roof beam overlap joint node of atress equilibrium |
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| Publication Number | Publication Date |
|---|---|
| CN214613648U true CN214613648U (en) | 2021-11-05 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202120712592.5U Expired - Fee Related CN214613648U (en) | 2021-04-08 | 2021-04-08 | Assembled case roof beam overlap joint node of atress equilibrium |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114000407A (en) * | 2021-11-07 | 2022-02-01 | 中建路桥集团有限公司 | Connection structure of prefabricated assembled T roof beam of unbonded |
| CN114319066A (en) * | 2021-12-01 | 2022-04-12 | 中国建筑土木建设有限公司 | Spliced steel truss box girder and mounting method thereof |
-
2021
- 2021-04-08 CN CN202120712592.5U patent/CN214613648U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114000407A (en) * | 2021-11-07 | 2022-02-01 | 中建路桥集团有限公司 | Connection structure of prefabricated assembled T roof beam of unbonded |
| CN114000407B (en) * | 2021-11-07 | 2023-11-24 | 中建路桥集团有限公司 | Connection structure of unbonded prefabricated assembled T-beam |
| CN114319066A (en) * | 2021-12-01 | 2022-04-12 | 中国建筑土木建设有限公司 | Spliced steel truss box girder and mounting method thereof |
| CN114319066B (en) * | 2021-12-01 | 2024-05-10 | 中国建筑土木建设有限公司 | Spliced steel truss box girder and installation method thereof |
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| GR01 | Patent grant | ||
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Address after: No. 122, Jianshe Middle Road, Puyang City, Henan Province Patentee after: Puyang Planning and Architectural Design and Research Institute Co.,Ltd. Address before: No. 122, Jianshe Middle Road, Puyang City, Henan Province Patentee before: Puyang planning and Architectural Design Institute |
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| CP01 | Change in the name or title of a patent holder | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20211105 |
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| CF01 | Termination of patent right due to non-payment of annual fee |