CN217461182U - Prefabricated steel pipe concrete column structure - Google Patents
Prefabricated steel pipe concrete column structure Download PDFInfo
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- CN217461182U CN217461182U CN202221515785.2U CN202221515785U CN217461182U CN 217461182 U CN217461182 U CN 217461182U CN 202221515785 U CN202221515785 U CN 202221515785U CN 217461182 U CN217461182 U CN 217461182U
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Abstract
The utility model relates to a prefabricated steel pipe concrete column structure belongs to building technical field. The prefabricated steel pipe concrete column structure comprises a steel pipe, a hollow concrete structure and an internal core filling concrete layer, wherein the hollow concrete structure is arranged inside the steel pipe and is tightly attached to the inner wall of the steel pipe; the core-filling self-compacting concrete layer is filled in a hollow part formed by the hollow concrete structure. The utility model provides a prefabricated steel core concrete column structure, the atress characteristic of the steel that excels in and the concrete that excels in of full play has reduced the material quantity simultaneously, has not only practiced thrift the cost, accords with the new theory of national low carbon development moreover.
Description
Technical Field
The utility model belongs to the technical field of the building, especially, relate to a prefabricated steel core concrete column structure.
Background
The prefabricated assembly technology is the development trend of the building industry, and the prefabricated mixed concrete structure can realize the standardization, the factory production and the cyclic utilization of components. The steel tube concrete column not only has large bearing capacity, but also has good plasticity and earthquake resistance, and the combination of the steel tube and the concrete respectively plays the advantages of the steel tube concrete column and is beneficial to saving the cost. The traditional steel pipe concrete column is usually to put the steel pipe in place firstly, and the concrete is poured on site, so that the requirement of the concrete mixing ratio of the cast-in-site main concrete is higher for ensuring the construction quality, and the self-compacting concrete is generally adopted because the concrete in the steel pipe is inconvenient to vibrate. However, by adopting the method, once the poured concrete and the steel pipe are not compact, the safety is affected, and the treatment difficulty is high. And influenced by commercial concrete transportation, pouring and the like, the grade of concrete is generally not more than C50, and in order to provide sufficient supporting force, the size of the steel tube concrete column is required to be increased.
SUMMERY OF THE UTILITY MODEL
To the weak point that exists among the correlation technique, the utility model provides a prefabricated steel pipe concrete column structure can give full play to the atress characteristic of high strength steel and high strength concrete, has reduced the material quantity simultaneously, has not only practiced thrift the cost, accords with the new theory of the development of national low carbon moreover.
The utility model provides a prefabricated steel pipe concrete column structure, which comprises a steel pipe, a hollow concrete structure and an internal core-filled concrete layer, wherein the hollow concrete structure is arranged inside the steel pipe and is tightly attached to the inner wall of the steel pipe; the core-filling self-compacting concrete layer is filled in a hollow part formed by the hollow concrete structure.
Preferably, the hollow concrete structure is made by a centrifugation method.
Preferably, the multi-section prefabricated steel pipe concrete column structures can be connected; the connection mode is welding, grouting sleeve connection, welding and grouting material combination connection or flange plate connection.
Preferably, when the welded connection is adopted, the end part of the steel pipe is provided with a reinforced steel pipe, and the reinforced steel pipe is positioned between the hollow concrete structure and the inner wall of the steel pipe.
Preferably, when the grouting sleeve is connected, the grouting sleeve is arranged in the hollow concrete structure and the internal core filling concrete layer, and the grouting sleeve is positioned at the end part of the prefabricated concrete-filled steel tube column structure.
Preferably, be provided with the reinforcing bar that uses with the grout sleeve cooperation in prefabricated steel core concrete column structure.
Preferably, when the grouting material is combined and connected by welding, a protruding steel plate is arranged on the grouting sleeve; the lower part of the grouting sleeve is provided with a grouting hole, and the upper part of the grouting sleeve is provided with a grout outlet.
Preferably, when adopting welded connection, adopt the steel sheet to weld the node of two sections prefabricated steel core concrete column structures, form annular steel structure between two sections prefabricated steel core concrete column structures.
Preferably, the steel plate is provided with a grouting hole and an exhaust hole.
Preferably, a protruding steel plate is arranged on the inner ring of the hollow concrete structure, a grout stopping strip is attached to the protruding steel plate, and a steel plate is arranged at the top of the hollow concrete structure.
The utility model discloses following technological effect has been gained:
the utility model provides a prefabricated steel pipe concrete column structure, which comprises a steel pipe, a hollow concrete structure and an internal core-filling concrete layer, wherein the hollow concrete structure is arranged inside the steel pipe and is tightly attached to the inner wall of the steel pipe; the core-filling self-compacting concrete layer is filled in the hollow part formed by the hollow concrete structure. The utility model discloses in through combining steel pipe and concrete, exert the advantage of self separately, full play high strength steel and the atress characteristic of the concrete that excels in, the holding power is good. Through filling hollow concrete structure in the steel pipe can improve the bearing capacity, simultaneously, have under the same bearing capacity's with ordinary steel core concrete column the condition, the prefabricated steel core concrete column size of this application is littleer, has reduced the material quantity, has reduced carbon and has discharged.
Further, the utility model provides a prefabricated steel core concrete column can carry out the multisection and connect, uses the transportation convenient.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the invention and together with the description serve to explain the invention and do not constitute a limitation on the invention. In the drawings:
fig. 1 is a schematic view of the structure of the prefabricated concrete-filled steel tube column of the present invention;
fig. 2 is a schematic cross-sectional view of the prefabricated concrete-filled steel tube column structure of the present invention;
fig. 3 is a schematic view of the connection of the grouting sleeve of the prefabricated concrete-filled steel tube column structure of the present invention;
fig. 4 is a schematic view of the grouting sleeve of the present invention;
FIG. 5 is a schematic view of the prefabricated concrete-filled steel tube column structure of the present invention being welded and connected with grouting material;
fig. 6 is a schematic view of the slurry blocking measure of the present invention.
The concrete-filled concrete is characterized by comprising 1-steel pipe, 2-hollow concrete structure, 3-internal filled concrete, 4-reinforced steel pipe, 5-reserved steel bars, 6-welded joints, 7-column joints, 8-grouting sleeves, 9-connecting steel bars, 10-grouting materials, 11-grouting holes, 12-grouting holes, 13-high-strength concrete, 14-protruding steel plates, 15-grout stopping strips, 16-steel plates, 17-grouting holes and 18-exhaust holes.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely below, and it should be understood that the described embodiments are only some embodiments of the present invention, but 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.
As shown in fig. 1-6, the utility model provides a prefabricated steel tube concrete column structure, which comprises a steel tube 1, a hollow concrete structure 2 and an internal core-filled concrete layer 3, wherein the hollow concrete structure 2 is arranged inside the steel tube 1 and clings to the inner wall of the steel tube 1; the core-filling self-compacting concrete layer 3 is filled in the hollow part formed by the hollow concrete structure 2.
The utility model discloses in, the good principle of prefabricated steel core concrete column structure holding power is as follows:
the utility model discloses in pack hollow concrete structure 2 in 1 intussuseption of steel pipe through the centrifugation method earlier, under the effect of centrifugal force, make concrete layer's density increase, the porosity reduces, and closely knit with the steel pipe packing, make intensity improve, and then make the holding power good, owing to adopt the centrifugation to pack the high-strength concrete layer, can form hollowly at the center of post after the centrifugation finishes, treat behind hollow concrete structure 2 reaches intensity, fill inside core concrete layer 3 with the hollowness again, or pack inside core concrete layer 3 again at the job site, further improve the holding power. Simultaneously, because this application packs the high-strength concrete layer in the steel pipe and makes prefabricated steel pipe concrete column structure support performance improve, consequently, under the condition that has same bearing capacity, the prefabricated steel pipe concrete column size of this application is littleer, has increased the usage space, has reduced the material quantity, has reduced carbon and has discharged.
In the present invention, the hollow concrete structure 2 is preferably made by a centrifugal method.
In the present invention, the steel pipe 1 is preferably made of high strength steel, and the sectional form thereof can be selected as required. The concrete raw material for the internal core-filling concrete layer 3 has good adhesive property and flow property with the hollow concrete structure 2.
In the utility model, furthermore, the multi-section prefabricated steel pipe concrete column structure can be connected; the connection mode is welding, grouting sleeve connection, welding and grouting material combination connection or flange connection. This arrangement facilitates transport, disassembly and provides sufficient length.
In the utility model, furthermore, when adopting welding connection, a reinforced steel pipe 4 is arranged at the end part of the steel pipe 1; the reinforced steel pipe 4 is positioned between the hollow concrete structure 2 and the inner wall of the steel pipe 1. By the arrangement, the nodes can be ensured to be connected with equal strength.
The utility model discloses in, when adopting grout sleeve 8 to connect, grout sleeve 8 is preferred to be set up in hollow concrete structure 2 and inside core concrete layer 3 of filling, and grout sleeve 8 is located the tip of prefabricated steel core concrete column structure.
The utility model discloses in, it is further, be provided with the reinforcing bar 9 that uses with the grout sleeve cooperation in prefabricated steel core concrete column structure. The utility model discloses in through such setting, when adopting grout sleeve 8 to connect, reinforcing bar 9 deepens into the inside completion of grout sleeve 8 and connects, forms post seam 7 between two sections prefabricated steel pipe concrete column structures.
The utility model discloses in, it is further, when adopting grout muffjoint, grout telescopic lower part is provided with grout hole 11, and upper portion is provided with grout hole 12. The utility model discloses in, when adopting grout muffjoint, grout material 10 should have that the viscosity is low, mobility is good, intensity is high, little inflation does not have characteristics such as shrink, and grout material 10 fills from lower part grout hole 11.
The utility model discloses in, it is further, when adopting welding and grout material built-up connection, adopt steel sheet 16 to weld the node of two sections prefabricated steel core concrete column structures, form welded joint 6, form annular steel construction between two sections prefabricated steel core concrete column structures.
The utility model discloses in, it is further, still can be further when welding and grout material built-up connection the inside slip casting at the annular steel construction that forms. The connection strength of the nodes can be further improved through the arrangement. In the present invention, the grouting material is preferably high-strength concrete 13. Further, in order to facilitate grouting, a grouting hole 17 and an exhaust hole 18 are provided in the steel plate.
The utility model discloses in, in order to prevent to run thick liquid, further, set up outstanding steel sheet 14 on the inner ring of hollow concrete structure 2 to paste on outstanding steel sheet 14 and end thick liquid strip 15, set up steel sheet 16 at the top of hollow concrete structure 2. Grouting is carried out by pressing from the grouting holes 17, and the aperture of the exhaust hole 18 is not less than 20 mm.
The utility model discloses in, when adopting the ring flange to connect, the ring flange sets up the tip in the steel pipe outside.
The utility model discloses in, reinforcing bar 5 can be reserved at the tip of prefabricated steel core concrete column structure as required, can carry out the post through such setting and be connected with other members.
The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, a plurality of modifications and decorations can be made without departing from the principle of the present invention, and these modifications and decorations should also be regarded as the protection scope of the present invention.
Claims (10)
1. The prefabricated steel pipe concrete column structure is characterized by comprising a steel pipe, a hollow concrete structure and an internal core filling concrete layer, wherein the hollow concrete structure is arranged inside the steel pipe and clings to the inner wall of the steel pipe; the core-filling self-compacting concrete layer is filled in a hollow part formed by the hollow concrete structure.
2. The prefabricated concrete filled steel tube column structure of claim 1, wherein the hollow concrete structure is made by a centrifugal method.
3. The prefabricated steel pipe concrete column structure of claim 1, wherein the plurality of prefabricated steel pipe concrete column structures are connected with each other; the connection mode is welding, grouting sleeve connection, welding and grouting material combination connection or flange plate connection.
4. The prefabricated concrete-filled steel tube column structure according to claim 3, wherein when welded connection is adopted, a reinforced steel tube is arranged at the end part of the steel tube, and the reinforced steel tube is positioned between the hollow concrete structure and the inner wall of the steel tube.
5. The prefabricated concrete filled steel tube column structure of claim 3, wherein when the grouting sleeves are connected, the grouting sleeves are arranged in the hollow concrete structure and the internal core concrete layer, and the grouting sleeves are positioned at the end parts of the prefabricated concrete filled steel tube column structure.
6. The prefabricated concrete-filled steel tube column structure of claim 5, wherein reinforcing steel bars used in cooperation with grouting sleeves are arranged in the prefabricated concrete-filled steel tube column structure.
7. The prefabricated concrete-filled steel tube column structure according to claim 5, wherein when the grouting sleeves are adopted for connection, the lower parts of the grouting sleeves are provided with grouting holes, and the upper parts of the grouting sleeves are provided with grout outlet holes.
8. The prefabricated steel tube concrete column structure of claim 3, wherein when the prefabricated steel tube concrete column structure is combined and connected with the grouting material by welding, the joints of the two prefabricated steel tube concrete column structures are welded by steel plates, and an annular steel structure is formed between the two prefabricated steel tube concrete column structures.
9. The prefabricated concrete-filled steel tube column structure according to claim 8, wherein grouting holes and exhaust holes are provided on the steel plate.
10. The prefabricated concrete filled steel tube column structure of claim 9, wherein a protruding steel plate is provided on an inner ring of the hollow concrete structure, a grout stop strip is attached to the protruding steel plate, and a steel plate is provided on the top of the hollow concrete structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221515785.2U CN217461182U (en) | 2022-06-16 | 2022-06-16 | Prefabricated steel pipe concrete column structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221515785.2U CN217461182U (en) | 2022-06-16 | 2022-06-16 | Prefabricated steel pipe concrete column structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217461182U true CN217461182U (en) | 2022-09-20 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202221515785.2U Active CN217461182U (en) | 2022-06-16 | 2022-06-16 | Prefabricated steel pipe concrete column structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217461182U (en) |
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2022
- 2022-06-16 CN CN202221515785.2U patent/CN217461182U/en active Active
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