CN214195232U - Annular steel pipe concrete column base connection structure - Google Patents
Annular steel pipe concrete column base connection structure Download PDFInfo
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- CN214195232U CN214195232U CN202022633278.6U CN202022633278U CN214195232U CN 214195232 U CN214195232 U CN 214195232U CN 202022633278 U CN202022633278 U CN 202022633278U CN 214195232 U CN214195232 U CN 214195232U
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Abstract
The utility model provides an annular steel pipe concrete column base joint construction, including the steel-pipe column, the concrete, a pedestal, the column base bottom plate, the hoop reinforcing bar net, the bottom reinforcing bar net, the inside at the base is buried into to the bottom of steel-pipe column, the inside filled concrete of steel-pipe column and base, the column base bottom plate is located the bottom perpendicular to lateral wall welded fastening of steel-pipe column and pours inside the concrete of base, the column base bottom plate sets up a plurality of holes along the hoop interval inside and outside the lateral wall of steel-pipe column, anchor muscle perpendicular to column base bottom plate passes the hole, the hoop reinforcing bar net sets up pours in the outside of the steel-pipe column of the inside of base concrete all around, the bottom reinforcing bar net is located the bottom of steel-pipe column, perpendicular to steel-pipe column is and is pour inside the concrete of base. The utility model provides an annular steel core concrete column base joint construction passes power and definitely, connects rationally, stable in structure, security height, has satisfied the reliability requirement that steel core concrete column and base are connected to construction convenience, cost are suitable.
Description
Technical Field
The utility model relates to a structural configuration, concretely relates to annular steel pipe concrete column base joint construction belongs to the structural engineering field among the civil engineering.
Background
The steel pipe concrete structure is a novel combined structure formed by filling concrete into a steel pipe. Concrete has high compressive strength but weak bending resistance, while steel has strong bending resistance and good elastoplasticity, but is easy to destabilize when being compressed and lose axial compressive capacity. The steel pipe concrete structure can effectively exert the respective advantages of steel and concrete, so that the concrete is in a lateral compression state, and the compression strength of the concrete can be improved by times. Meanwhile, due to the existence of the concrete, the rigidity of the steel pipe is improved, and the concrete and the steel pipe play a role together, so that the bearing capacity is greatly improved. The connection mode of the concrete filled steel tubular column and the foundation is various, and the problem of reasonable design is urgently needed to be solved. The column base is a joint for connecting the upper main body structure and the foundation, and plays a role in bearing up and down in the structure. According to the connection form of the steel pipe concrete column and the foundation, the column base can be divided into two parts, namely a hinged column base and a rigid column base. The hinged column base has the following characteristics according to different structures: flat, ribbed and beam-type sockets. The rigid column base has an exposed type, an embedded type, an external wrapping type and an insertion type column base according to different structures. The column base has the advantages of definite force transmission, economy, reasonability, safety, reliability, simple structure and enough rigidity, and can ensure that the load of the column is safely transmitted to the foundation.
The traditional hinged column base such as a flat plate column base limits the force transmission, is not suitable for large column load, has small application range, only transmits shearing force, does not transmit bending moment, and is unstable, so that potential safety hazards exist. When adopting traditional bolted connection column base, because the installation of traditional bolt needs two-sided operation, probably need constructor to get into steel pipe internally mounted bolt, greatly increased the construction degree of difficulty, and lead to the fact the influence to constructor's personal safety, and bolted connection is unstable, the potential safety hazard is big. Chinese patent CN 207794436U, for example, discloses a hinged column shoe for reinforced concrete columns, the structure of which comprises a positioning column, which comprises a first column section and a second column section connected with each other; the structure of the simple assembled steel pipe concrete column base comprises a steel pipe concrete column, a flange plate, stiffening ribs, anchor rods, bolts and the like, the stiffening ribs are respectively welded with a connecting steel pipe and a flange plate, the connecting steel pipe is welded on the flange plate, the long rod anchor rods sequentially penetrate through the flange plate and a foundation bottom plate to be embedded into the foundation, and the like.
SUMMERY OF THE UTILITY MODEL
The utility model discloses to traditional steel core concrete column and base be connected security, reliability not high or neotype joint construction operation complicated, the big scheduling problem of the construction degree of difficulty provides an annular steel core concrete column base joint construction and is the formula of burying column base that adopts, steel core concrete column and base formation rigid connection. The column base bottom plate is positioned at the bottom end of the steel pipe column and is welded and fixed to the side wall in a perpendicular mode and poured inside concrete of the base, a plurality of holes are reserved in the column base bottom plate, the anchoring ribs penetrate through the holes in a perpendicular mode, and the column base bottom plate, the steel pipe concrete column and the base are fixed. The annular reinforcing mesh is arranged in concrete poured around the outer side of the steel pipe column in the base, and the reinforcing mesh is also arranged at the bottom of the steel pipe column and is locally compressed. The utility model discloses make the steel pipe concrete more fasten with being connected of base, overall structure stability is good, passes power and has evenly improved the security performance, and the construction is simple and convenient, the cost is suitable.
The technical scheme of the utility model: a ring-shaped steel pipe concrete column base connection structure comprises a steel pipe column, concrete, a base, a column base bottom plate, a ring-shaped reinforcing mesh and a bottom reinforcing mesh, wherein the bottom end of the steel pipe column is embedded in the base, the base is made of concrete, the interior of the steel pipe column is filled with the concrete, the column base bottom plate is positioned at the bottom end of the steel pipe column, is welded and fixed to a side wall and is poured in the concrete of the base, a plurality of holes are formed in the column base bottom plate inside and outside the side wall of the steel pipe column at intervals along the ring direction, anchoring ribs penetrate through the holes perpendicular to the column base bottom plate, the ring-shaped reinforcing mesh is arranged in the concrete around the outer side of the steel pipe column poured in the base, vertical reinforcing bars and transverse reinforcing bars of the ring-shaped reinforcing mesh are arranged at certain intervals and form right angles with each other, all cross points of the vertical reinforcing bars and the transverse reinforcing bars are welded or bound together, and the multi-layer bottom reinforcing mesh is positioned at the lower part of the bottom end of the steel pipe column, and the steel pipe columns are arranged in the concrete at intervals in layers and are vertical to the steel pipe columns.
The column base bottom plate is rectangular or circular, and the thickness is not less than 8 mm.
The diameter of the hole on the column base bottom plate is at least 5mm larger than that of the anchoring rib, and the anchoring rib is finish-rolled deformed steel bar, steel wire, steel strand or section steel.
The bottom end of the steel pipe column is embedded into the base and is connected with the base in a pouring mode, the steel pipe column is a round steel pipe or a rectangular steel pipe, and the embedding depth of the steel pipe column is 1-3 times of the height of the cross section of the steel pipe column.
And concrete is filled in the steel pipe column or only the bottom end of the steel pipe column is poured with the concrete with the height not less than 1/2 times of the section size of the steel pipe column.
The spacing of the vertical reinforcing steel bars should not be larger than 300mm, and the spacing of the transverse reinforcing steel bars should not be larger than 400 mm.
The beneficial effects of the utility model reside in that:
1) the bottom end of the steel tube concrete column is embedded into the base and is in rigid connection with the base, and the steel tube concrete column is reasonably connected with the base and is fixedly connected with the base.
2) The structure connecting structure transmits the axial force, the bending moment and the shearing force of the upper main body structure of the concrete-filled steel tubular column to the base, and the force transmission is clear.
3) The utility model discloses in, the column base bottom plate is located the bottom perpendicular to lateral wall welded fastening of steel-pipe column and pours inside the concrete of base, has reduced pressure, stabilizes the shaft, evenly transmits the power of shaft for the base, has improved bearing capacity. A plurality of holes are reserved on the column base bottom plate, the anchoring ribs penetrate through the holes perpendicular to the column base bottom plate, the concrete filled steel tubular column and the base are fixed, the concrete filled steel tubular column is connected with the base more stably, and safety and reliability are better.
4) The utility model discloses among the structural connection structure, hoop reinforcing bar net sets up pours in the outside of the steel-pipe column in the base concrete all around, strengthens being connected of steel-pipe concrete column and base, and the bottom of steel-pipe column has also set up reinforcing bar net, and local pressurized makes overall structure obtain fine stability.
5) The utility model discloses the construction is simple and convenient, the cost is suitable.
Description of the drawings:
FIG. 1 is an elevation view of a connection structure of a ring-shaped steel pipe concrete column base (concrete filled in a steel pipe column);
FIG. 2 is an elevation view of a connection structure of a ring-shaped steel pipe concrete column base (concrete filled in the bottom end of the steel pipe column);
FIG. 3 is a top view of a connection structure of an annular concrete filled steel tube column base (the column base bottom plate is circular);
FIG. 4 is a top view of a connection structure of an annular concrete filled steel tube column base (a column base bottom plate is rectangular);
in the drawings, there is shown in the drawings,1 is the steel-pipe column, 2 is the concrete, 3 is the base, 4 is column base bottom plate, 5 is the hoop reinforcing bar net, 6 is the bottom reinforcing bar net, 401 is the hole, 402 is the anchor muscle, 501 is vertical reinforcing bar, 502 is horizontal reinforcing bar.
Detailed Description
The invention is further described with reference to the accompanying drawings and the detailed description. A circular steel pipe concrete column base connection structure is characterized by comprising a steel pipe column 1, concrete 2, a base 3, a column base bottom plate 4, a circular reinforcing mesh 5 and a bottom reinforcing mesh 6, wherein the bottom end of the steel pipe column 1 is embedded in the base 3, the base 3 is formed by pouring the concrete 2, the concrete 2 is filled in the steel pipe column 1, the column base bottom plate 4 is positioned at the bottom end of the steel pipe column 1 and is welded and fixed in a mode of being perpendicular to a side wall and is poured in the concrete of the base 3, the column base bottom plate 4 is internally and externally provided with a plurality of holes 401 at intervals along the circular direction in the side wall of the steel pipe column 1, anchoring ribs 402 penetrate through the holes 401 perpendicular to the column base bottom plate 4, the circular reinforcing mesh 5 is arranged in the concrete around the outer side of the steel pipe column 1 poured in the base 3, vertical reinforcing bars 501 and transverse reinforcing bars 502 of the circular reinforcing mesh 5 are respectively arranged at intervals and form right angles with each other, all cross points of the vertical reinforcing bars 501 and the transverse reinforcing bars 502 are welded or bound together, the multi-layer bottom reinforcing mesh 6 is positioned at the lower part of the bottom end of the steel pipe column 1 and is arranged in the concrete in a spaced and layered mode perpendicular to the steel pipe column 1.
The column base bottom plate 4 is rectangular or circular, and the thickness is not less than 8 mm.
The diameter of the hole 401 on the column base bottom plate 4 is at least 5mm larger than that of the anchoring rib 402, and the anchoring rib 402 is finish-rolled deformed steel bar, steel wire, steel strand or section steel.
The bottom end of the steel pipe column 1 is embedded into the base 3 and is connected with the base 3 in a pouring mode, the steel pipe column 1 is a round steel pipe or a rectangular steel pipe, and the embedding depth of the steel pipe column 1 is 1-3 times of the section height of the steel pipe column 1.
The interior of the steel pipe column 1 is filled with concrete 2 or only the bottom end of the steel pipe column 1 is poured with concrete 2 with the height not less than 1/2 times of the section size of the steel pipe column 1.
The spacing of the vertical rebars 501 should not be greater than 300mm, and the spacing of the transverse rebars 502 should not be greater than 400 mm.
Claims (6)
1. An annular steel pipe concrete column base connection structure is characterized by comprising a steel pipe column (1), concrete (2), a base (3), a column base bottom plate (4), an annular reinforcing mesh (5), a bottom reinforcing mesh (6), wherein the bottom end of the steel pipe column (1) is embedded in the base (3), the base (3) is made of concrete (2) through pouring, the concrete (2) is filled in the steel pipe column (1), the column base bottom plate (4) is positioned at the bottom end of the steel pipe column (1) and is welded and fixed to a side wall in a vertical mode and poured in the concrete of the base (3), a plurality of holes (401) are formed in the column base bottom plate (4) in the inner side wall and the outer side wall of the steel pipe column (1) at intervals along the annular direction, anchoring ribs (402) penetrate through the holes (401) in a vertical mode perpendicular to the column base bottom plate (4), the annular reinforcing mesh (5) is arranged in the concrete around the outer side of the steel pipe column (1) poured in the base (3), vertical reinforcing steel bars (501) and transverse reinforcing steel bars (502) of the annular reinforcing mesh (5) are arranged at intervals respectively and form right angles with each other, all cross points of the vertical reinforcing steel bars (501) and the transverse reinforcing steel bars (502) are welded or bound together, the multi-layer bottom reinforcing mesh (6) is located at the lower part of the bottom end of the steel pipe column (1), and the steel pipe column (1) is perpendicular to the steel pipe column and is arranged in concrete at intervals in a layered mode.
2. The connection structure of the annular steel tube concrete column base according to claim 1, wherein the column base bottom plate (4) is rectangular or circular and has a thickness not less than 8 mm.
3. The connection structure of the annular steel tube concrete column base of claim 1, wherein the diameter of the hole (401) on the column base plate (4) is at least 5mm larger than that of the anchoring rib (402).
4. The annular steel tube concrete column base connection structure of claim 1, wherein the bottom end of the steel tube column (1) is embedded in the base (3) and connected with the base (3) in a pouring mode, the steel tube column (1) is a round steel tube or a rectangular steel tube, and the embedding depth of the steel tube column (1) is 1-3 times of the height of the cross section of the steel tube column (1).
5. The annular steel pipe concrete column base connection structure of claim 1, wherein the steel pipe column (1) is internally filled with concrete (2) or concrete (2) having a height not less than 1/2 times the sectional dimension of the steel pipe column (1) is poured only at the bottom end of the steel pipe column (1).
6. The connection structure of the annular steel tube concrete column base of claim 1, wherein the spacing of the vertical steel bars (501) is not more than 300mm, and the spacing of the transverse steel bars (502) is not more than 400 mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022633278.6U CN214195232U (en) | 2020-11-13 | 2020-11-13 | Annular steel pipe concrete column base connection structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022633278.6U CN214195232U (en) | 2020-11-13 | 2020-11-13 | Annular steel pipe concrete column base connection structure |
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| Publication Number | Publication Date |
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| CN214195232U true CN214195232U (en) | 2021-09-14 |
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| CN202022633278.6U Active CN214195232U (en) | 2020-11-13 | 2020-11-13 | Annular steel pipe concrete column base connection structure |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117052045A (en) * | 2023-08-15 | 2023-11-14 | 北京市市政工程设计研究总院有限公司 | Semi-embedded end-bearing column foot of steel tube concrete column and steel tube and column foot construction method thereof |
-
2020
- 2020-11-13 CN CN202022633278.6U patent/CN214195232U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117052045A (en) * | 2023-08-15 | 2023-11-14 | 北京市市政工程设计研究总院有限公司 | Semi-embedded end-bearing column foot of steel tube concrete column and steel tube and column foot construction method thereof |
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