CN219470651U - Prefabricated steel structure bent cap and lower pier system structure - Google Patents
Prefabricated steel structure bent cap and lower pier system structure Download PDFInfo
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- CN219470651U CN219470651U CN202320508838.6U CN202320508838U CN219470651U CN 219470651 U CN219470651 U CN 219470651U CN 202320508838 U CN202320508838 U CN 202320508838U CN 219470651 U CN219470651 U CN 219470651U
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Abstract
The utility model discloses a prefabricated steel structure bent cap and a lower pier system structure, which comprises prefabricated steel pipe columns and prefabricated steel bent caps, wherein the lower ends of the prefabricated steel pipe columns are fixedly connected with bottom steel plates embedded in a concrete foundation, a plurality of transverse connecting pieces are arranged between two transversely adjacent prefabricated steel pipe columns, two ends of each transverse connecting piece are respectively inserted into notch grooves formed in the two prefabricated steel pipe columns and welded and fixed, watertight solid fine sand is poured into the prefabricated steel pipe columns, column heads are arranged at the tops of the prefabricated steel pipe columns, the prefabricated steel bent caps are fixedly supported on the column heads, and a flat plate support used for supporting the prefabricated steel box girders is connected to the prefabricated steel bent caps through support tables. The remarkable effects are as follows: each part is prefabricated by a factory and then hoisted and assembled on site, and only a concrete foundation is poured on site, so that the on-site pouring engineering quantity is reduced to the greatest extent, and the construction time is shortened.
Description
Technical Field
The utility model relates to the technical field of municipal bridge assembly type components, in particular to a prefabricated steel structure bent cap and lower pier system structure.
Background
With the development of economy, more and more municipal bridges need to be built. Because of traffic jams and other reasons, the allowable construction time is reduced, and the traditional bridge bent pier structure adopts a construction method of in-situ pouring, so that the problems of low construction speed, time consumption, labor consumption and the like are solved. There is an increasing need for an assembled bridge system, preferably prefabricated in a complete factory, which can be repaired substantially within a week after being welded in place. However, the current prefabricated technology is mainly applied to the bridge superstructure, and has few applications and limited technology in the bridge substructure.
Disclosure of Invention
Aiming at the defects of the prior art, the utility model aims to provide a prefabricated steel structure bent cap and lower pier system structure, and each part adopts a mode of pouring concrete foundation only on site after factory prefabrication, so that the on-site pouring engineering quantity can be reduced to the greatest extent, and the construction time is shortened.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
a prefabricated steel structure bent cap and lower pier system structure, its key lies in: including prefabricated steel-pipe column and prefabricated steel bent cap, the lower extreme of prefabricated steel-pipe column and the bottom steel sheet fixed connection of pre-buried in concrete foundation are provided with a plurality of transverse connection spare between two transversely adjacent prefabricated steel-pipe column, the both ends of every transverse connection spare insert respectively in the incision inslot and the welded fastening that both sides prefabricated steel-pipe column offered the waterproof real fine sand has been poured into in the prefabricated steel-pipe column, is provided with the column cap at the top of prefabricated steel-pipe column, prefabricated steel bent cap fixed support is in on the column cap be connected with the dull and stereotyped support that is used for supporting prefabricated steel box girder through the support platform on the prefabricated steel bent cap.
Furthermore, the bottoms of the prefabricated steel pipe columns are connected with the bottom steel plates through a plurality of column foot stiffening plates.
Further, the column foot stiffening plates are uniformly distributed along the circumference of the prefabricated steel pipe column.
Further, two adjacent transverse connectors are connected through a transverse connecting plate.
Furthermore, the edges of the two sides of the transverse connecting plate are also fixedly connected with the prefabricated steel pipe columns on the two sides.
Further, the prefabricated steel bent cap is including locating the backup pad of front and back both sides respectively, is connected through the channel-section steel between the inner wall of two backup pads be fixed with a plurality of strengthening ribs on the outer wall of two backup pads the upper and lower both sides of two backup pads are fixed with the apron respectively be provided with on the apron with column cap, support platform matched with fixed plate.
Further, the density of the reinforcing ribs close to the column head is greater than that of the reinforcing ribs far from the column head.
The utility model has the remarkable effects that:
1. the pier columns, the steel capping beams, the supports and the transverse connection systems among the pier columns are all prefabricated in factories and then are hoisted and assembled on site, only concrete foundations are cast on site, the on-site casting engineering quantity is reduced to the greatest extent, and the construction time is shortened;
2. the prefabricated steel bent cap is prefabricated by a factory, all the steel plates are hoisted on site, the positions of the columns are dense, the middle positions of the columns are sparse, and the time for pouring the concrete bent cap is saved when the prefabricated steel bent cap is hoisted in place.
Drawings
FIG. 1 is a schematic diagram of the structure of the present utility model;
FIG. 2 is a schematic structural view of a prefabricated steel bent cap;
fig. 3 is a top view of fig. 2.
Detailed Description
The following describes the embodiments and working principles of the present utility model in further detail with reference to the drawings.
As shown in fig. 1-3, the prefabricated steel structure bent cap and lower pier system structure comprises prefabricated steel pipe columns 1 and prefabricated steel bent caps 2, wherein the lower ends of the prefabricated steel pipe columns 1 are fixedly connected with bottom steel plates 3 embedded in concrete foundations 12, a plurality of transverse connecting pieces 4 are arranged between two transversely adjacent prefabricated steel pipe columns 1, two ends of each transverse connecting piece 4 are respectively inserted into notch grooves 5 formed in the two prefabricated steel pipe columns 1 and welded and fixed, watertight solid fine sand is poured into the prefabricated steel pipe columns 1, column heads 6 are arranged at the tops of the prefabricated steel pipe columns 1, the prefabricated steel bent caps 2 are fixedly supported on the column heads 6, and flat plate supports 8 for supporting the prefabricated steel box girders 9 are connected to the prefabricated steel bent caps 2 through support seats 7.
As can be seen from fig. 1, the bottom of the prefabricated steel pipe column 1 is further connected with the bottom steel plate 3 through a plurality of column foot stiffening plates 10, so that the connection strength between the prefabricated steel pipe column 1 and the bottom steel plate 3 is improved.
Further, the column foot stiffening plates 10 are uniformly distributed along the circumferential direction of the prefabricated steel pipe column 1, so that uniform stress on the circumferential side of the prefabricated steel pipe column 1 is ensured.
In order to ensure the structural strength of the transverse connection system, two adjacent transverse connection pieces 4 are connected through transverse connection plates 11, and two side edges of the transverse connection plates 11 are also connected and fixed with the prefabricated steel pipe columns 1 on two sides.
As shown in fig. 2 and 3, the prefabricated steel capping beam 2 includes support plates 21 disposed on front and rear sides respectively, the inner walls of the two support plates 21 are connected by channel steel 22, a plurality of reinforcing ribs 23 are fixed on the outer walls of the two support plates 21, cover plates 24 are respectively fixed on the upper and lower sides of the two support plates 21, and fixing plates 25 matched with the column head 6 and the support stand 7 are disposed on the cover plates 24. The prefabricated steel bent cap 2 with the structure can be transported to a construction site for hoisting after being prefabricated in a factory, and the time for pouring the concrete bent cap can be saved.
The density of the reinforcing ribs 23 close to the column head 6 is greater than that of the reinforcing ribs 23 far away from the column head 6 so as to ensure the structural strength of the precast steel capping beam 2 at the pier column position.
The prefabricated steel structure bent cap and lower pier system structure of this embodiment, its construction steps are:
only the concrete foundation 12 is poured on site, and the other is hoisted after being prefabricated in a factory, so that the on-site pouring engineering quantity is reduced to the greatest extent;
a bottom steel plate 3 is pre-embedded on the concrete foundation 12, so that the rear welding is facilitated;
the prefabricated steel pipe column 1 is pulled to the site, the specific diameter is adopted according to calculation, and then a column foot stiffening plate 10 at the bottom is welded; the transverse connecting piece 4 (steel pipe) is inserted into the notch groove 5, then girth welding is carried out for fixation, and then the transverse connecting plate 11 made of steel plates is welded for fixation, so as to form a transverse stable steel pipe system;
filling water into the prefabricated steel pipe column 1 to compact fine sand, and not needing to be solidified, so that the time consumption is low;
the steel structure column head 6 is welded on the prefabricated steel pipe column 1 in a factory, then the prefabricated steel bent cap 2 is hoisted on the steel structure column head 6, and the column head 6 and the prefabricated steel bent cap 2 are welded together;
the prefabricated steel cover beam 2 is provided with a steel structure support table 7, a flat plate support 8 is placed and leveled, and finally, the prefabricated steel box beam 9 is hoisted.
In the prefabricated steel structure bent cap and lower pier system structure, the prefabricated steel pipe columns, the steel bent cap 2, the flat plate support 8, the transverse connection system of the prefabricated steel pipe columns and other components are hoisted and assembled on site after being prefabricated in factories, and only concrete foundations are used for casting on site, so that the on-site casting engineering quantity is reduced to the greatest extent, and the construction time is shortened; the prefabricated steel bent cap 2 is prefabricated by a factory, all the steel plates are hoisted on site, the positions of the columns are dense, the middle positions of the columns are sparse, and the time for pouring the concrete bent cap is saved when the prefabricated steel bent cap is hoisted in place.
The technical scheme provided by the utility model is described in detail. The principles and embodiments of the present utility model have been described herein with reference to specific examples, the description of which is intended only to facilitate an understanding of the method of the present utility model and its core ideas. It should be noted that it will be apparent to those skilled in the art that various modifications and adaptations of the utility model can be made without departing from the principles of the utility model and these modifications and adaptations are intended to be within the scope of the utility model as defined in the following claims.
Claims (7)
1. A prefabricated steel structure bent cap and lower pier architecture characterized by: including prefabricated steel-pipe column and prefabricated steel bent cap, the lower extreme of prefabricated steel-pipe column and the bottom steel sheet fixed connection of pre-buried in concrete foundation are provided with a plurality of transverse connection spare between two transversely adjacent prefabricated steel-pipe column, the both ends of every transverse connection spare insert respectively in the incision inslot and the welded fastening that both sides prefabricated steel-pipe column offered the waterproof real fine sand has been poured into in the prefabricated steel-pipe column, is provided with the column cap at the top of prefabricated steel-pipe column, prefabricated steel bent cap fixed support is in on the column cap be connected with the dull and stereotyped support that is used for supporting prefabricated steel box girder through the support platform on the prefabricated steel bent cap.
2. The prefabricated steel structural bent cap and lower pier structure according to claim 1, wherein: the bottom of the prefabricated steel pipe column is connected with the bottom steel plate through a plurality of column foot stiffening plates.
3. The prefabricated steel structural bent cap and lower pier structure according to claim 2, wherein: and the column foot stiffening plates are uniformly distributed along the circumference of the prefabricated steel pipe column.
4. The prefabricated steel structural bent cap and lower pier structure according to claim 1, wherein: and two adjacent transverse connecting pieces are connected through a transverse connecting plate.
5. The prefabricated steel structural bent cap and lower pier structure according to claim 4, wherein: the edges of the two sides of the transverse connecting plate are also fixedly connected with the prefabricated steel pipe columns on the two sides.
6. The prefabricated steel structure bent cap and lower pier structure according to any one of claims 1 to 5, wherein: the prefabricated steel bent cap is including locating the backup pad of front and back both sides respectively, is connected through the channel-section steel between the inner wall of two backup pads be fixed with a plurality of strengthening ribs on the outer wall of two backup pads the upper and lower both sides of two backup pads are fixed with the apron respectively be provided with on the apron with column cap, support platform matched with fixed plate.
7. The prefabricated steel structural bent cap and lower pier structure according to claim 6, wherein: the density of the reinforcing ribs close to the column head is greater than that of the reinforcing ribs far away from the column head.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320508838.6U CN219470651U (en) | 2023-03-16 | 2023-03-16 | Prefabricated steel structure bent cap and lower pier system structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320508838.6U CN219470651U (en) | 2023-03-16 | 2023-03-16 | Prefabricated steel structure bent cap and lower pier system structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219470651U true CN219470651U (en) | 2023-08-04 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320508838.6U Active CN219470651U (en) | 2023-03-16 | 2023-03-16 | Prefabricated steel structure bent cap and lower pier system structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219470651U (en) |
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2023
- 2023-03-16 CN CN202320508838.6U patent/CN219470651U/en active Active
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