CN111962673A - Column base structure of steel pipe concrete column and construction method thereof - Google Patents
Column base structure of steel pipe concrete column and construction method thereof Download PDFInfo
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- CN111962673A CN111962673A CN202010985357.5A CN202010985357A CN111962673A CN 111962673 A CN111962673 A CN 111962673A CN 202010985357 A CN202010985357 A CN 202010985357A CN 111962673 A CN111962673 A CN 111962673A
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- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 128
- 239000010959 steel Substances 0.000 title claims abstract description 128
- 239000004567 concrete Substances 0.000 title claims abstract description 45
- 238000010276 construction Methods 0.000 title claims abstract description 16
- 239000011150 reinforced concrete Substances 0.000 claims abstract description 53
- 238000000034 method Methods 0.000 claims abstract description 7
- 238000004873 anchoring Methods 0.000 claims description 6
- 230000002787 reinforcement Effects 0.000 claims description 5
- 210000002435 tendon Anatomy 0.000 claims 1
- 230000009286 beneficial effect Effects 0.000 description 4
- 230000007704 transition Effects 0.000 description 4
- 238000009434 installation Methods 0.000 description 3
- 238000003780 insertion Methods 0.000 description 2
- 230000037431 insertion Effects 0.000 description 2
- 238000009435 building construction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000011241 protective layer Substances 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
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Classifications
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
- E04B1/18—Structures comprising elongated load-supporting parts, e.g. columns, girders, skeletons
- E04B1/30—Structures comprising elongated load-supporting parts, e.g. columns, girders, skeletons the supporting parts being composed of two or more materials; Composite steel and concrete constructions
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D27/00—Foundations as substructures
- E02D27/32—Foundations for special purposes
- E02D27/42—Foundations for poles, masts or chimneys
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
- E04B1/18—Structures comprising elongated load-supporting parts, e.g. columns, girders, skeletons
- E04B1/185—Connections not covered by E04B1/21 and E04B1/2403, e.g. connections between structural parts of different material
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
- E04B1/38—Connections for building structures in general
- E04B1/41—Connecting devices specially adapted for embedding in concrete or masonry
- E04B1/4171—Nailable or non-threaded screwable elements
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D2600/00—Miscellaneous
- E02D2600/20—Miscellaneous comprising details of connection between elements
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- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Structural Engineering (AREA)
- Civil Engineering (AREA)
- Electromagnetism (AREA)
- Physics & Mathematics (AREA)
- Mining & Mineral Resources (AREA)
- General Engineering & Computer Science (AREA)
- Paleontology (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Joining Of Building Structures In Genera (AREA)
- Foundations (AREA)
Abstract
The invention provides a steel tube concrete column base structure and a construction method thereof, wherein the steel tube concrete column base structure comprises the following components: 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. Compared with the method for fixing the stud in the steel pipe, the method for fixing the stud in the steel pipe has the advantages that the annular convex rib is fixed in the steel pipe, so that the steel pipe can be prevented from colliding with the column inserted rib during hoisting, the construction difficulty of hoisting the steel pipe is reduced, and the construction convenience of hoisting the steel pipe is improved.
Description
Technical Field
The invention relates to the technical field of building construction, in particular to a column base structure of a concrete filled steel tubular column and a construction method thereof.
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.
Disclosure of Invention
In view of the above situation, the invention provides a column base structure of a steel tube concrete column and a construction method thereof, which solve the technical problems that the existing steel column is easy to collide with a bottom plate steel bar during hoisting and the hoisting difficulty of the steel column is increased.
In order to achieve the purpose, the invention adopts the technical scheme 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 invention, the inner sides of the column inserting ribs are fixedly provided with the positioning stirrups connected with the column inserting ribs.
In the embodiment of the invention, an additional steel bar is connected between the top end of each column inserting rib and the inner wall of the steel pipe.
In the embodiment of the invention, a gap is reserved between the column inserting rib and the annular convex rib, and the gap is not more than 15 mm.
In the embodiment of the invention, a stud is fixed on the inner wall of the steel pipe above the connecting section.
In the embodiment of the invention, the connecting piece is a plurality of connecting plates which are vertically arranged, and the plurality of connecting plates are circumferentially distributed along the outer wall of the connecting section.
In the embodiment of the invention, the embedded part 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.
The invention also provides a construction method of the column base of the steel tube concrete column, which comprises the following steps:
pouring to form 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;
providing a steel pipe, fixing a plurality of connecting sections of annular convex ribs on the inner wall of the lower end of the steel pipe, wherein the plurality of annular convex ribs are distributed at intervals along the height direction of the steel pipe, and arranging connecting pieces at the bottom ends of the outer walls of the connecting sections;
and sleeving the connecting sections outside a plurality of column inserting ribs which are distributed annularly through the annular convex ribs, fixing the embedded parts and the connecting parts, and pouring concrete into the steel tube to form the steel tube concrete column.
In the embodiment of the invention, the positioning hoop reinforcement is fixed inside the column insertion reinforcements and connected with each column insertion reinforcement.
In the embodiment of the invention, before the concrete is poured into the steel pipe, the top end of each column inserting rib is fixedly connected with the inner wall of the steel pipe by adopting an additional steel bar.
Due to the adoption of the technical scheme, the invention has the following beneficial effects:
(1) compared with the method for fixing the stud in the steel pipe, the method for fixing the stud in the steel pipe has the advantages that the annular convex rib is fixed in the steel pipe, so that the steel pipe can be prevented from colliding with the column inserted rib during hoisting, the construction difficulty of hoisting the steel pipe is reduced, and the construction convenience and the construction efficiency of hoisting the steel pipe are improved.
(2) The additional steel bars are arranged to be beneficial to fixing the top ends of the column inserting bars, and the positioning stirrups are arranged to be beneficial to positioning the lower parts of the column inserting bars, so that the column inserting bars are not required to be connected with the annular convex ribs, the defect that the column inserting bars are difficult to fix with the annular convex ribs is overcome, and convenience in construction is improved.
Drawings
FIG. 1 is a schematic view of the column base structure of the concrete filled steel tubular column with uniform cross section.
FIG. 2 is a schematic diagram of the column base structure of the concrete filled steel tubular column with non-uniform cross section according to the present invention.
FIG. 3 is a schematic view showing the connection structure of the concrete pier and the transition section of the concrete-filled steel tubular column according to the present invention.
FIG. 4 is a cross-sectional view taken along line H1-H1 of FIG. 1, FIG. 2, or FIG. 3, in accordance with 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 an understanding of the present invention, the following description is made in conjunction with the accompanying drawings and examples.
Referring to fig. 1 and 4, the present invention provides a column foot structure of a steel pipe concrete column, including 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 includes 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 pass through 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 invention, a stud is fixed on the inner wall of the steel pipe 3 above the connecting section.
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 invention, the inner sides of a plurality of column inserting ribs 4 which are annularly arranged are fixed with positioning stirrups 5 connected with each column inserting rib 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 invention, an additional steel bar 6 is connected between the top end of each column steel bar 4 and the inner wall of the steel pipe 3, and the arrangement of the additional steel bar 6 is favorable for fixing the top end of the column steel bar 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.
In the embodiment of the present invention, a gap is left between the column steel bar 4 and the annular rib 31, preferably, the gap between the column steel bar 4 and the annular rib 31 is not greater than 15mm, the steel tube 3 can be conveniently sleeved outside the column steel bar 4 through the annular rib 31 by providing the gap between the annular rib 31 and the column steel bar 4, and when the distance between the annular rib 31 and the column steel bar 4 is too large, the column steel bar 4 is inserted into the steel tube 3 from the lower reinforced concrete column 1, and the gap is too large, so that the column steel bar 4 needs to be bent, and the thickness of the protective layer of the steel bar of the lower reinforced concrete column 1 cannot be ensured. In the embodiment of the invention, the reinforced concrete column 1 is a reinforced concrete column with an equal cross section or a reinforced concrete column with a variable cross section or a 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 invention, the diameter of the steel pipe concrete column is 900mm, 1000mm, 1200mm, 1400mm, 1600mm, 1800mm, 1900mm, 2200mm and 2400 mm.
In the embodiment of the invention, the annular convex rib 31 is welded and fixed with the steel pipe 3, the top end of the column inserted rib 4 is welded and fixed with the steel pipe 3 through the additional steel bar 6, and the positioning stiff hoop 5 is welded and fixed with the column inserted rib 4.
The concrete filled steel tubular column base structure of the invention is explained above specifically, and the construction method thereof is explained 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.
In the embodiment of the invention, the column-shaped connector also comprises a positioning hoop 5 fixed inside the column-shaped connectors 4 which are arranged in a ring shape, and each column-shaped connector 4 is connected and fixed with the positioning hoop 5.
In the embodiment of the invention, before the concrete is poured into the steel pipe 3, the column inserting rib 4 is fixedly connected with the inner wall of the steel pipe 3 by adopting the additional steel bar 6.
In the embodiment of the invention, the construction method of the column base of the steel pipe concrete column is not limited to the steps, and also comprises the conventional procedures of steel bar installation of a reinforced concrete beam, embedded part installation, steel bar rechecking and the like, and is not described herein again.
While the present invention has been described in detail and with reference to the accompanying drawings and examples, it will be apparent to one skilled in the art that various changes and modifications can be made therein. Therefore, certain details of the embodiments are not to be interpreted as limiting, and the scope of the invention is to be determined by the appended claims.
Claims (10)
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.
8. A construction method of a column base of a concrete filled steel tubular column is characterized by comprising the following steps:
pouring to form 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;
providing a steel pipe, fixing a plurality of connecting sections of annular convex ribs on the inner wall of the lower end of the steel pipe, wherein the plurality of annular convex ribs are distributed at intervals along the height direction of the steel pipe, and arranging connecting pieces at the bottom ends of the outer walls of the connecting sections;
and sleeving the connecting sections outside a plurality of column inserting ribs which are distributed annularly through the annular convex ribs, fixing the embedded parts and the connecting parts, and pouring concrete into the steel tube to form the steel tube concrete column.
9. The method of claim 8, further comprising fixing a positioning stirrup coupled to each of the column stirrups inside the plurality of column stirrups.
10. The method of claim 8, further comprising attaching and fixing the top end of each of the column dowels to the inner wall of the steel pipe with additional steel before pouring concrete into the steel pipe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010985357.5A CN111962673A (en) | 2020-09-18 | 2020-09-18 | Column base structure of steel pipe concrete column and construction method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010985357.5A CN111962673A (en) | 2020-09-18 | 2020-09-18 | Column base structure of steel pipe concrete column and construction method thereof |
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| Publication Number | Publication Date |
|---|---|
| CN111962673A true CN111962673A (en) | 2020-11-20 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010985357.5A Pending CN111962673A (en) | 2020-09-18 | 2020-09-18 | Column base structure of steel pipe concrete column and construction method thereof |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113982106A (en) * | 2021-12-07 | 2022-01-28 | 广西路建集团建筑工程有限公司 | Transition section structure of reinforced concrete column and steel pipe concrete column and construction method |
-
2020
- 2020-09-18 CN CN202010985357.5A patent/CN111962673A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113982106A (en) * | 2021-12-07 | 2022-01-28 | 广西路建集团建筑工程有限公司 | Transition section structure of reinforced concrete column and steel pipe concrete column and construction method |
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