CN212153440U - Large-diameter concrete filled steel tubular column base structure of underground large-span structure - Google Patents
Large-diameter concrete filled steel tubular column base structure of underground large-span structure Download PDFInfo
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- CN212153440U CN212153440U CN202020280038.XU CN202020280038U CN212153440U CN 212153440 U CN212153440 U CN 212153440U CN 202020280038 U CN202020280038 U CN 202020280038U CN 212153440 U CN212153440 U CN 212153440U
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Abstract
The utility model provides a major diameter steel core concrete column base structure of structure is striden greatly to underground, including the steel core concrete column, the reinforced concrete roof beam, reinforced concrete slab and reinforced concrete column mound, be equipped with the reinforced concrete column mound around the steel core concrete column, be equipped with reinforced concrete slab in the reinforced concrete roof beam, be equipped with the beam reinforcement in the reinforced concrete roof beam, be equipped with the slab reinforcement in reinforced concrete slab, be equipped with column mound reinforcement longitudinal reinforcement and ring beam reinforcing bar in the reinforced concrete column mound, reinforced concrete roof beam and reinforced concrete slab set up around the steel core concrete column, and have the part to insert in the reinforced concrete column mound, the beam reinforcement in the steel core concrete column mound is walked around from steel core concrete column both sides. Compared with the conventional reinforced concrete beam column node, the large-diameter steel pipe concrete column base structure of the underground large-span structure has larger bearing capacity, can effectively transfer huge loads from the steel pipe concrete column and the reinforced concrete beam, and has clear force transfer, reliable performance and convenient construction.
Description
Technical Field
The utility model relates to an underground structure engineering technical field especially relates to a big diameter steel core concrete column base structure of structure is striden greatly to underground.
Background
At present, the architectural effect of underground building receives more and more attention, requires the span of underground structure bigger and bigger thereupon, and the bearing capacity of vertical bearing member must further strengthen, and the bearing capacity of traditional reinforced concrete column beam node often is limited, and difficult being applicable to underground long-span structure. The column base structure of the concrete filled steel tubular column is necessary for meeting the construction requirement of an underground large-span structure and ensuring the structural safety and high bearing capacity. Therefore, the development of a large-diameter concrete filled steel tubular column base structure of an underground large-span structure is a problem to be solved urgently.
Disclosure of Invention
In view of this, the utility model aims at providing a large diameter steel core concrete column base structure of structure is striden greatly to the underground, guarantees that the structure construction needs and the structural safety are striden greatly to the underground.
In order to solve the technical problem, the utility model discloses a technical scheme is:
a large-diameter concrete-filled steel tube column base structure of an underground large-span structure comprises a concrete-filled steel tube column, a reinforced concrete beam, a reinforced concrete slab and a reinforced concrete column pier, wherein the reinforced concrete column pier is arranged on the periphery of the concrete-filled steel tube column, the reinforced concrete beam is internally provided with the reinforced concrete slab, beam reinforcing steel bars are arranged in the reinforced concrete beam, plate reinforcing steel bars are arranged in the reinforced concrete slab, column pier reinforcing longitudinal reinforcing steel bars and ring beam reinforcing steel bars are arranged in the reinforced concrete column pier, the reinforced concrete beam and the reinforced concrete slab are vertically arranged with the concrete-filled steel tube column, a part of the reinforced concrete beam and the reinforced concrete slab are inserted into the reinforced concrete column pier, and the beam reinforcing steel bars in the concrete-filled steel tube column pier pass around the two sides of the concrete-filled steel tube column.
Furthermore, an octagonal connecting plate is arranged in the reinforced concrete column pier and welded with the steel tube concrete column, and the octagonal connecting plate is also welded with beam reinforcements in the reinforced concrete beam and plate reinforcements in the reinforced concrete slab.
Furthermore, an annular connecting plate is arranged in the steel tube concrete column.
Furthermore, the inner wall and the outer wall of the steel tube concrete column are both provided with studs.
Furthermore, the bottom edge of the steel tube concrete column is welded with the annular column foot plate, and the connection between the steel tube concrete column and the annular column foot plate is strengthened through the stiffening ribs.
Furthermore, annular column foot board and pre-buried positioning steel plate welding to fix through the crab-bolt, crab-bolt one end is buried in the cushion cap basis.
Furthermore, a plurality of layers of reinforcing mesh sheets are arranged below the embedded positioning steel plate.
Further, the bearing platform foundation is poured twice, the bearing platform foundation is poured to the bottom of the embedded positioning steel plate for the first time, and the rest part of the bearing platform foundation is poured after the steel pipe concrete column is fixed through the anchor bolt.
And furthermore, a reinforcement cage is arranged at the bottom of the concrete filled steel tube column and comprises an inner ring reinforcement cage and an outer ring reinforcement cage, one end of the reinforcement cage is anchored into the concrete filled steel tube column, and the other end of the reinforcement cage is anchored into the bearing platform foundation.
Further, exhaust holes are formed in the octagonal connecting plate, the annular column foot plate and the embedded positioning steel plate.
Compared with the prior art, the underground stride structure greatly major diameter steel core concrete column base structure have following advantage: the utility model discloses a reinforcing bar and the concrete filled steel tube column's of reinforced concrete roof beam and board connection problem has been solved to the connecting plate, the mode that the reinforcing bar through the reinforced concrete roof beam passed around from concrete filled steel tube column both sides in the column pier has solved the roof beam and has drawn the problem that the steel bar connects the area percentage and no more than 50%, make the concrete filled steel tube column can effectively transmit the load that comes from the beam-ends of concrete filled steel tube column and reinforced concrete roof beam with the beam column node structure of reinforced concrete roof beam, it is clear and definite to pass power, dependable performance, be applicable to the underground structure engineering of large-span.
Drawings
The accompanying drawings, which form a part hereof, are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the invention without undue limitation. In the drawings:
fig. 1 is a schematic structural diagram of the present invention;
FIG. 2 is a cross-sectional view of section A-A of FIG. 1;
fig. 3 is a sectional view of section B-B in fig. 1.
Description of reference numerals:
1. a steel pipe concrete column; 2. a reinforced concrete beam; 3. a reinforced concrete slab; 4. a reinforced concrete pier; 5. beam reinforcing steel bars; 6. plate steel bars; 7. reinforcing the longitudinal steel bars by using the column piers; 8. ring beam steel bars; 9. an octagonal connecting plate; 10. an annular connecting plate; 11. a stud; 12. an annular toe plate; 13. a stiffening rib; 14. pre-burying a positioning steel plate; 15. an anchor bolt; 16. a bearing platform foundation; 17. an inner ring reinforcement cage; 18. an outer ring reinforcement cage; 19. multiple layers of steel mesh sheets; 20. and (4) exhausting holes.
Detailed Description
It should be noted that, in the present invention, the embodiments and features of the embodiments may be combined with each other without conflict.
In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are used merely for convenience of description and for simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention. Furthermore, the terms "first", "second", etc. are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first," "second," etc. may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless otherwise specified.
In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art through specific situations.
The present invention will be described in detail below with reference to the accompanying drawings in conjunction with embodiments.
As shown in fig. 1-3, a large diameter steel pipe concrete column base structure of an underground large span structure comprises a steel pipe concrete column 1, a reinforced concrete beam 2, a reinforced concrete plate 3 and a reinforced concrete column pier 4, the periphery of the steel tube concrete column 1 is provided with a reinforced concrete column pier 4, a reinforced concrete slab 3 is arranged in the reinforced concrete beam 2, the reinforced concrete beam 2 is internally provided with beam steel bars 5, the reinforced concrete slab 3 is internally provided with slab steel bars 6, column pier reinforcement longitudinal steel bars 7 and ring beam steel bars 8 are arranged in the reinforced concrete column pier 4, the reinforced concrete beam 2 and the reinforced concrete slab 3 are arranged around the steel tube concrete column 1, and part of the reinforced concrete beam and the reinforced concrete slab are inserted into the reinforced concrete column pier 4, and the beam steel bars 5 in the steel pipe concrete column pier 4 pass by and around the two sides of the steel pipe concrete column 1. An octagonal connecting plate 9 is arranged in the reinforced concrete column pier 4, the octagonal connecting plate 9 is welded with the steel tube concrete column 1, and the octagonal connecting plate 9 is further welded with a beam steel bar 5 in the reinforced concrete beam 2 and a plate steel bar 6 in the reinforced concrete plate 3. An annular connecting plate 10 is arranged in the concrete-filled steel tube column 1, studs 11 are arranged on the inner wall and the outer wall of a steel tube of the concrete-filled steel tube column 1, the bottom edge of the concrete-filled steel tube column 1 is welded with an annular column foot plate 12, and the connection between the concrete-filled steel tube column and the annular column foot plate is enhanced through stiffening ribs 13. The annular column foot plate 12 is welded with an embedded positioning steel plate 14 and is fixed through an anchor bolt 15, and one end of the anchor bolt 15 is embedded into a bearing platform foundation 16. A plurality of layers of reinforcing mesh sheets 19 are arranged below the embedded positioning steel plate 14, and exhaust holes 20 are formed in the octagonal connecting plate 9, the annular connecting plate 10, the annular column foot plate 12 and the embedded positioning steel plate 14. And the bearing platform foundation 16 is poured twice, the first pouring is carried out to the bottom of the embedded positioning steel plate 14, and the rest part of the bearing platform foundation 16 is poured after the steel pipe concrete column 1 is fixed through the anchor bolt 15. The steel tube concrete column 1 bottom is equipped with the steel reinforcement cage, the steel reinforcement cage includes inner circle steel reinforcement cage 17 and outer lane steel reinforcement cage 18, one end anchor of steel reinforcement cage is gone into in the steel tube concrete column 1, and the other end anchor is gone into in cushion cap basis 16.
The working process of the embodiment is as follows:
1. manufacturing a steel pipe, welding a stud, an inner annular connecting plate and an outer octagonal connecting plate on the inner wall and the outer wall of the steel pipe, welding the bottom edge of the steel pipe with the annular column foot plate, and reinforcing the connection of the stud and the annular column foot plate by welding stiffening ribs to finally complete the column foot node structure.
2. Fixing the pre-embedded positioning steel plates and the studs, binding the column pier steel bars below the bottoms of the pre-embedded positioning steel plates, and pouring the foundation concrete of the bearing platform to the bottoms of the pre-embedded positioning steel plates.
3. And (3) installing a column base node structure in a site positioning manner, binding ring beam steel bars, column pier reinforcing longitudinal steel bars, concrete beam steel bars and concrete slab steel bars, and welding the concrete beam steel bars and the concrete slab steel bars with the octagonal connecting plate.
4. And simultaneously, casting the concrete for compensating shrinkage in the steel pipe, and the concrete for the bearing platform foundation, the beam, the plate and the column pier.
The utility model is suitable for a steel core concrete column rigid connection column foot structure of structure is striden greatly in the underground has bigger bearing capacity than conventional reinforced concrete beam column node, can effectively transmit the huge load that comes from steel core concrete column and reinforced concrete roof beam, and it is clear and definite, dependable performance, construction convenience to pass power.
The above description is only a preferred embodiment of the present invention, and should not be taken as limiting the invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (10)
1. The utility model provides a major diameter steel core concrete column base structure of structure is striden greatly to underground which characterized in that: the reinforced concrete column is provided with reinforced concrete piers around, the reinforced concrete beam is internally provided with the reinforced concrete slab, the reinforced concrete beam is internally provided with beam steel bars, the reinforced concrete slab is internally provided with the slab steel bars, the reinforced concrete pier is internally provided with pier reinforcing longitudinal steel bars and ring beam steel bars, the reinforced concrete beam and the reinforced concrete slab are vertically arranged with the steel tube concrete column, part of the reinforced concrete beam and the reinforced concrete slab are inserted into the reinforced concrete pier, and the beam steel bars in the steel tube concrete pier are bypassed from two sides of the steel tube concrete column.
2. The large-diameter concrete filled steel tubular column pedestal structure of the underground large-span structure according to claim 1, wherein: the reinforced concrete column pier is internally provided with an octagonal connecting plate, the octagonal connecting plate is welded with the steel tube concrete column, and the octagonal connecting plate is also welded with beam reinforcements in the reinforced concrete beam and plate reinforcements in the reinforced concrete slab.
3. The large-diameter concrete filled steel tubular column pedestal structure of the underground large-span structure according to claim 2, wherein: and an annular connecting plate is arranged in the steel tube concrete column.
4. The large-diameter concrete filled steel tubular column pedestal structure of the underground large-span structure according to claim 3, wherein: the bottom edge of the steel pipe concrete column is welded with the annular column foot plate, and the connection between the bottom edge of the steel pipe concrete column and the annular column foot plate is reinforced through the stiffening ribs.
5. The large-diameter concrete filled steel tubular column pedestal structure of the underground large-span structure according to claim 4, wherein: annular column foot and pre-buried positioning steel plate welding to fix through the crab-bolt, crab-bolt one end is buried in the cushion cap basis.
6. The large-diameter concrete filled steel tubular column pedestal structure of the underground large-span structure according to claim 5, wherein: and a plurality of layers of reinforcing mesh sheets are arranged below the embedded positioning steel plate.
7. The large-diameter concrete filled steel tubular column pedestal structure of the underground large-span structure according to claim 5, wherein: and pouring the bearing platform foundation twice, pouring the bearing platform foundation to the bottom of the embedded positioning steel plate for the first time, and pouring the rest part of the bearing platform foundation after the steel pipe concrete column is fixed through the anchor bolt.
8. The large-diameter concrete filled steel tubular column pedestal structure of the underground large-span structure according to claim 6, wherein: the concrete filled steel tube column bottom is equipped with the steel reinforcement cage, the steel reinforcement cage includes inner circle steel reinforcement cage and outer lane steel reinforcement cage, in the one end anchor of steel reinforcement cage goes into the concrete filled steel tube column, the other end anchor goes into in the cushion cap basis.
9. The large-diameter concrete filled steel tubular column pedestal structure of the underground large-span structure according to claim 5, wherein: exhaust holes are formed in the octagonal connecting plate, the annular column foot plate and the embedded positioning steel plate.
10. The large-diameter concrete filled steel tubular column base structure of the underground large-span structure according to claim 1 or 2, wherein: the inner wall and the outer wall of the steel tube concrete column are provided with studs.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020280038.XU CN212153440U (en) | 2020-03-09 | 2020-03-09 | Large-diameter concrete filled steel tubular column base structure of underground large-span structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020280038.XU CN212153440U (en) | 2020-03-09 | 2020-03-09 | Large-diameter concrete filled steel tubular column base structure of underground large-span structure |
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| Publication Number | Publication Date |
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| CN212153440U true CN212153440U (en) | 2020-12-15 |
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| CN202020280038.XU Active CN212153440U (en) | 2020-03-09 | 2020-03-09 | Large-diameter concrete filled steel tubular column base structure of underground large-span structure |
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| CN (1) | CN212153440U (en) |
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