CN212388738U - Column foot structure of steel pipe concrete column - Google Patents
Column foot structure of steel pipe concrete column Download PDFInfo
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- CN212388738U CN212388738U CN202022053778.2U CN202022053778U CN212388738U CN 212388738 U CN212388738 U CN 212388738U CN 202022053778 U CN202022053778 U CN 202022053778U CN 212388738 U CN212388738 U CN 212388738U
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Abstract
The utility model provides a steel core concrete column base structure, steel column base structure includes: the reinforced concrete foundation comprises a reinforced concrete foundation, wherein an embedded part and a plurality of column inserting bars are arranged at the top of the reinforced concrete foundation, and the column inserting bars are distributed annularly and penetrate out of the reinforced concrete foundation; a steel pipe for pouring into concrete and form steel core concrete column, the lower extreme of steel pipe takes shape to be equipped with the linkage segment of multichannel annular fin for the inner wall, multichannel annular fin is followed the direction of height interval distribution of steel pipe, the linkage segment passes through annular fin cover is located many that the annular distributes the outside of post dowel, the bottom mounting of the outer wall of linkage segment has the connecting piece, the connecting piece with built-in fitting fixed connection. Compare with the internal fixation toggle pin of steel pipe, the utility model discloses a collide with post dowel bar when steel pipe hoist and mount can be avoided to the annular fin of internal fixation of steel pipe, reduce the construction degree of difficulty of steel pipe hoist and mount, improve the construction convenience of steel pipe hoist and mount.
Description
Technical Field
The utility model relates to a construction technical field relates to a steel core concrete column base structure particularly.
Background
During design construction such as airport terminal, stadium, large-span steel house lid is supported by the steel column, and when steel column base and bottom plate steel bar connection, the reinforcement degree of difficulty is big, and is designed with the rivet in the steel column, and the steel column rivet and the easy emergence of reinforcing bar collide when the installation, have increased the degree of difficulty of steel column hoist and mount.
SUMMERY OF THE UTILITY MODEL
In view of the above situation, the utility model provides a steel core concrete column base structure solves easy technical problem with bottom plate reinforcing bar bump, increase the steel column hoist and mount degree of difficulty when current steel column hoist and mount.
In order to achieve the purpose, the utility model adopts the technical proposal that: there is provided a concrete filled steel tubular column shoe structure comprising:
the reinforced concrete foundation comprises a reinforced concrete foundation, wherein an embedded part and a plurality of column inserting bars are arranged at the top of the reinforced concrete foundation, and the column inserting bars are distributed annularly and penetrate out of the reinforced concrete foundation;
a steel pipe for pouring into concrete and form steel core concrete column, the lower extreme of steel pipe takes shape to be equipped with the linkage segment of multichannel annular fin for the inner wall, multichannel annular fin is followed the direction of height interval distribution of steel pipe, the linkage segment passes through annular fin cover is located many that the annular distributes the outside of post dowel, the bottom mounting of the outer wall of linkage segment has the connecting piece, the connecting piece with built-in fitting fixed connection.
In the embodiment of the utility model provides an, many the inboard of post dowel is fixed with every the location stirrup that the post dowel is connected.
In the embodiment of the utility model provides an in, every the top of post dowel with be connected with the additional reinforcing bar between the inner wall of steel pipe.
In the embodiment of the utility model provides an in, the post dowel with leave the clearance between the annular fin, just the clearance is not more than 15 mm.
In the embodiment of the utility model provides an in, the linkage segment top the inner wall of steel pipe is fixed with the peg.
In the embodiment of the utility model, the connecting piece is a plurality of connecting plates of vertical setting, and is a plurality of the connecting plates are followed the outer wall circumference of linkage segment distributes.
In the embodiment of the utility model provides an in, the built-in fitting include with the anchor board and the vertical fixation of connecting plate anchor many anchor bars of anchor board below, the anchor bar pre-buried in the reinforced concrete basis.
The utility model discloses owing to adopted above technical scheme, make it have following beneficial effect:
(1) compare with the internal fixation toggle pin of steel pipe, the utility model discloses a collide with post dowel bar when steel pipe hoist and mount can be avoided to the annular fin of internal fixation of steel pipe, reduce the construction degree of difficulty of steel pipe hoist and mount, improve the construction convenience and the efficiency of construction of steel pipe hoist and mount.
(2) The utility model discloses being provided with of additional reinforcement does benefit to the top of pair post dowel and fixes, and the location stirrup be provided with do benefit to the lower part of pair post dowel and fix a position for the post dowel need not to be connected with annular fin, has avoided the defect of the fixed difficulty of post dowel and annular fin, improves the convenience of construction.
Drawings
FIG. 1 is a schematic diagram of the column base structure of the concrete filled steel tubular column with uniform cross section according to the present invention.
FIG. 2 is a schematic diagram of the column base structure of the non-uniform cross-section steel pipe concrete column of the present invention.
FIG. 3 is a schematic view of the connection structure of the transition section of the concrete pier and the concrete-filled steel tubular column.
Fig. 4 is a cross-sectional view of the cross-section H1-H1 of fig. 1, 2 or 3 according to the present invention.
The correspondence of reference numerals to components is as follows:
a reinforced concrete column 1; a reinforced concrete beam 2; a steel pipe 3; an annular rib 31; a connecting member 32; a column dowel 4; positioning the stirrups 5; adding a steel bar 6; and (7) transition section steel bars.
Detailed Description
To facilitate understanding of the present invention, the following description is made with reference to the accompanying drawings and examples.
Please refer to fig. 1 and 4, the present invention provides a column foot structure of a steel pipe concrete column, which comprises a reinforced concrete foundation and a steel pipe 3 for pouring concrete to form the steel pipe concrete column, in the embodiment of the present invention, the reinforced concrete foundation comprises a reinforced concrete column 1 and a reinforced concrete beam 2 fixed on the top end of the reinforced concrete column 1, the top of the reinforced concrete foundation is provided with an embedded part 21 (not shown in fig. 1, 2 and 3) and a plurality of column inserted bars 4, the plurality of column inserted bars 4 are distributed annularly and penetrate out of the reinforced concrete foundation; specifically, the embedded part 21 is arranged at the top of the reinforced concrete beam 2, and the column dowel 4 extends upwards from the reinforced concrete column 1 to extend out of the top end of the reinforced concrete beam 2; the lower extreme of steel pipe 3 takes shape to be equipped with the linkage segment of multichannel annular fin 31 for the inner wall, multichannel annular fin 31 follows the direction of height interval distribution of steel pipe 3, the linkage segment passes through annular fin 31 cover is located the many of annular distribution the outside of post dowel 4, the bottom mounting of the outer wall of linkage segment has connecting piece 32, connecting piece 32 with built-in fitting 21 fixed connection.
In the embodiment of the utility model provides an in, the linkage segment top the inner wall of steel pipe 3 is fixed with the peg.
In the embodiment of the present invention, the distance between the adjacent annular ribs 31 is 300 mm; the distance between the adjacent column steel dowels 4 can be designed according to the requirements of drawings.
In the embodiment of the utility model, the inner sides of the plurality of column joint bars 4 which are annularly arranged are fixed with positioning stirrups 5 connected with each column joint bar 4; the positioning hoops 5 are beneficial to positioning the column inserting ribs 4, so that the steel pipe 3 is prevented from colliding with the column inserting ribs 4 during hoisting, the hoisting work of the steel pipe 3 is prevented from being influenced, and the hoisting difficulty is increased; on the other hand, the arrangement of the positioning stiff hoops 5 can overcome the technical problem that the annular convex ribs 31 at the bottom of the steel pipe 3 are difficult to weld with the column inserting ribs 4. Specifically, the distance from the first positioning stirrup 5 to the top surface of the reinforced concrete beam 2 is 50 mm; the distance between adjacent positioning stirrups 4 is 500 mm.
In the embodiment of the utility model provides an in, every the top of post dowel 4 with be connected with additional reinforcing bar 6 between the inner wall of steel pipe 3, additional reinforcing bar 6 be provided with do benefit to and fix the top of post dowel 4. Specifically, the length of the additional steel bar 6 is 350mm, so as to ensure the welding strength between the additional steel bar 6 and the two side column inserting bars 4 and the steel pipe 3.
The embodiment of the utility model provides an in, post dowel 4 with leave the clearance between the annular fin 31, preferably, post dowel 4 with clearance between the annular fin 31 is not more than 15mm, can make steel pipe 3 locate the outside of post dowel 4 through annular fin 31 cover through having the clearance between annular fin 31 and the post dowel 4 conveniently, when interval between annular fin 31 and the post dowel 4 is too big, because in post dowel 4 stretches into steel pipe 3 from lower floor's reinforced concrete post 1, the clearance is too big, need buckle post dowel 4, can't guarantee the protective layer thickness of 1 reinforcing bar of lower floor's reinforced concrete post. In the embodiment of the utility model provides an in, reinforced concrete column 1 is uniform cross section reinforced concrete column or variable cross section reinforced concrete column or concrete pier.
Furthermore, as shown in fig. 1 to 3, a transition section steel bar 7 anchored in the steel pipe concrete column is further arranged in the steel pipe concrete column 1, and the transition section steel bar 7 is suitable for steel pipe concrete columns with pipe diameters not less than 1600 mm.
In the embodiment of the present invention, the connecting member 32 is a plurality of vertically arranged connecting plates, and the plurality of connecting plates are circumferentially distributed along the outer wall of the connecting section; the embedded part 21 comprises an anchoring plate anchored with the connecting plate and a plurality of anchor bars vertically fixed below the anchoring plate, and the anchor bars are embedded in the reinforced concrete foundation.
In the embodiment of the utility model provides an in, the diameter of steel core concrete column is 900mm, 1000mm, 1200mm, 1400mm, 1600mm, 1800mm, 1900mm, 2200mm, 2400 mm.
The embodiment of the utility model provides an in, annular fin 31 and 3 welded fastening of steel pipe, the top of post dowel 4 and steel pipe 3 are through 6 welded fastening of additional reinforcing bar, and location strength nature hoop 5 and 4 welded fastening of post dowel.
The concrete filled steel tubular column base structure of the present invention is described above, and the construction method thereof is described below, comprising the following steps:
pouring to form a reinforced concrete foundation, wherein an embedded part 21 and a plurality of column inserting ribs 4 are arranged at the top of the reinforced concrete foundation, and the column inserting ribs 4 are distributed annularly and penetrate out of the reinforced concrete foundation;
further, the reinforced concrete foundation comprises a reinforced concrete column 1 and a reinforced concrete beam 2 fixed at the top end of the reinforced concrete column 1, the reinforced concrete column 1 is constructed firstly, then the reinforced concrete beam 2 is formed by pouring on the reinforced concrete column 1, the embedded part 21 is arranged at the top of the reinforced concrete beam 2, and the column inserted bar 4 extends upwards from the reinforced concrete column 1 to extend out of the top end of the reinforced concrete beam 2;
providing a steel pipe 3, fixing a plurality of connecting sections of annular convex ribs 31 on the inner wall of the lower end of the steel pipe 3, wherein the plurality of annular convex ribs 31 are distributed at intervals along the height direction of the steel pipe 3, and arranging connecting pieces 32 at the bottom ends of the outer walls of the connecting sections;
and sleeving the connecting sections outside a plurality of annularly distributed column inserting bars 4 through the annular convex ribs 31, fixing the embedded parts 21 and the connecting parts 32, and pouring concrete into the steel pipes 3 to form the steel pipe concrete column.
The embodiment of the utility model provides an in, still include and be the annular and arrange the inside fixed position stirrup 5, each of post dowel 4 with location stirrup 5 is connected fixedly.
The embodiment of the utility model provides an in, still include to before pouring the concrete in the steel pipe 3, adopt additional reinforcing bar 6 will post dowel 4 with the interior wall connection of steel pipe 3 is fixed.
The embodiment of the utility model provides an in, steel core concrete column base construction method is not limited to above step, still includes conventional processes such as steel bar installation, built-in fitting installation, reinforcing bar recheck of reinforced concrete roof beam, no longer gives unnecessary details here.
The present invention has been described in detail with reference to the drawings and the embodiments, and those skilled in the art can make various modifications to the present invention based on the above description. Therefore, certain details of the embodiments should not be construed as limitations of the invention, which are intended to be covered by the following claims.
Claims (7)
1. A concrete filled steel tubular column base structure, its characterized in that includes:
the reinforced concrete foundation comprises a reinforced concrete foundation, wherein an embedded part and a plurality of column inserting bars are arranged at the top of the reinforced concrete foundation, and the column inserting bars are distributed annularly and penetrate out of the reinforced concrete foundation;
a steel pipe for pouring into concrete and form steel core concrete column, the lower extreme of steel pipe takes shape to be equipped with the linkage segment of multichannel annular fin for the inner wall, multichannel annular fin is followed the direction of height interval distribution of steel pipe, the linkage segment passes through annular fin cover is located many that the annular distributes the outside of post dowel, the bottom mounting of the outer wall of linkage segment has the connecting piece, the connecting piece with built-in fitting fixed connection.
2. A concrete filled steel tubular column footing structure according to claim 1 wherein a locating stirrup connected to each said column stirrup is fixed to the inside of a plurality of said column stirrups.
3. A concrete filled steel tubular column footing structure according to claim 1 wherein additional steel reinforcement is connected between the top end of each said column tendon and the inner wall of said steel tube.
4. A concrete filled steel tubular column footing structure according to claim 1, wherein a gap is left between said column dowel and said annular rib, and said gap is no greater than 15 mm.
5. A concrete filled steel tubular column footing structure according to claim 1, wherein studs are affixed to the inner wall of said steel tube above said connecting section.
6. A concrete filled steel tubular column footing structure according to claim 1, wherein said connecting member is a plurality of vertically disposed connecting plates circumferentially distributed along the outer wall of said connecting section.
7. The concrete filled steel tubular column footing structure of claim 6, wherein said embedment comprises an anchoring plate anchored to said connecting plate and a plurality of anchor bars fixed vertically below said anchoring plate, said anchor bars being embedded in said reinforced concrete foundation.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022053778.2U CN212388738U (en) | 2020-09-18 | 2020-09-18 | Column foot structure of steel pipe concrete column |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022053778.2U CN212388738U (en) | 2020-09-18 | 2020-09-18 | Column foot structure of steel pipe concrete column |
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| CN212388738U true CN212388738U (en) | 2021-01-22 |
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| CN202022053778.2U Active CN212388738U (en) | 2020-09-18 | 2020-09-18 | Column foot structure of steel pipe concrete column |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114457956A (en) * | 2022-01-12 | 2022-05-10 | 中建八局西南建设工程有限公司 | Large-span special-shaped steel-concrete column and construction method thereof |
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2020
- 2020-09-18 CN CN202022053778.2U patent/CN212388738U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114457956A (en) * | 2022-01-12 | 2022-05-10 | 中建八局西南建设工程有限公司 | Large-span special-shaped steel-concrete column and construction method thereof |
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