CN220267019U - Assembly type combined column structure with steel reinforcement cage on core column - Google Patents

Assembly type combined column structure with steel reinforcement cage on core column Download PDF

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Publication number
CN220267019U
CN220267019U CN202321678565.6U CN202321678565U CN220267019U CN 220267019 U CN220267019 U CN 220267019U CN 202321678565 U CN202321678565 U CN 202321678565U CN 220267019 U CN220267019 U CN 220267019U
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steel
core column
connecting plate
column
vertical
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CN202321678565.6U
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Chinese (zh)
Inventor
王晓岭
徐姗姗
魏刚
袁洪涛
代春芳
赵伟
魏海悦
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China Xinxing Construction & Development Co ltd
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China Xinxing Construction & Development Co ltd
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Abstract

A core column with reinforcement cage assembled type combined column structure comprises a steel core column, a reinforcement cage and a positioning bracket; the positioning brackets are arranged at the outer side of the steel pipe core column along the vertical interval; the positioning bracket comprises a positioning frame and a connecting short column; the positioning frame is annular and sleeved outside the steel pipe core column; perforations are arranged on the positioning frame at intervals along the circumferential direction; the connecting short column fixedly connects the positioning frame with the steel pipe core column; the lower end of the steel tube core column is connected with a bottom connecting plate, and the upper end of the steel tube core column is connected with a top connecting plate; the reinforcement cage comprises vertical reinforcement and stirrups; the vertical steel bars are correspondingly penetrated in the perforations; the lower ends of the vertical steel bars are fixedly connected with a bottom connecting plate at the bottom of the steel tube core column, and the upper ends of the vertical steel bars correspondingly penetrate through a top connecting plate; the stirrup hoops are established in the outside of a set of vertical reinforcing bar. The utility model solves the technical problems of difficult positioning of vertical steel bars in the traditional assembled combined column, complicated binding process of the steel bar cage and long whole construction period.

Description

Assembly type combined column structure with steel reinforcement cage on core column
Technical Field
The utility model belongs to the technical field of building engineering construction, and particularly relates to an assembled type combined column structure with a core column and a reinforcement cage.
Background
Steel-concrete composite structures have been used in the past for high-rise buildings with very high axial forces on the bottom columns, while multi-storey buildings rarely employ composite columns, generally reinforced concrete columns or steel columns.
The current state greatly develops and promotes the prefabricated building technology, and the prefabricated building with the largest application is a prefabricated composite floor slab and a concrete wall. However, for the main body structure of the concrete frame, the beam column node reinforcement is dense, the connection is difficult, the anti-seismic bearing capacity is generally questioned, the application is greatly limited, the prefabricated frame is only used in a small amount in some test point projects, and the large popularization is not realized.
The assembled type combined column is a reinforced concrete combined column with a core, and has high bearing capacity which is 2-4 times that of a conventional common reinforced concrete column. There are many applications in high-rise buildings, but the concrete inside and outside the core is all cast in place. The existing construction process flow of the concrete combined column with the core comprises the following steps: 1. the construction of the independent foundation slab is completed, and the rim of a cup straight wall steel bars are reserved; 2. hoisting the core column into position; 3. binding reinforcing steel bars at the bottom of the core column; 4. pouring concrete at the cup opening; 5. and (5) vertically binding reinforcing steel bars outside the core column and pouring external concrete. According to the construction process, the steel bars of the conventional core column are vertically bound in situ, and the steel bars are connected layer by layer according to each layer, so that the vertical steel bars are difficult to position, the binding process of the steel bar cage is complex, and the construction period of the whole assembled combined column is long.
Disclosure of Invention
The utility model aims to provide a core column and reinforcement cage assembled type combined column structure, which aims to solve the technical problems that vertical reinforcement in a traditional assembled type combined column is difficult to position, the reinforcement cage binding process is complicated and the whole construction period is long.
In order to achieve the above purpose, the present utility model adopts the following technical scheme.
The assembled combined column structure with the steel reinforcement cage comprises a steel pipe core column and the steel reinforcement cage; the device also comprises a positioning bracket; the positioning bracket is arranged at the outer side of the steel pipe core column and close to the lower end of the steel pipe core column (1); the positioning bracket comprises a positioning frame and a connecting short column; the positioning frame is annular and sleeved outside the steel pipe core column, and the inner diameter of the positioning frame is larger than the diameter of the steel pipe core column; perforations are arranged on the positioning frame at intervals along the circumferential direction; the connecting short columns are arranged between each positioning frame and the steel pipe core column at intervals along the circumferential direction, and the positioning frames are fixedly connected with the steel pipe core column through the connecting short columns; the lower end of the steel tube core column is connected with a bottom connecting plate, and the upper end of the steel tube core column is connected with a top connecting plate; the reinforcement cage comprises vertical reinforcements and stirrups; the vertical steel bars are provided with a group, and the group of vertical steel bars correspondingly penetrate through the perforations on the positioning frame; the lower ends of the vertical steel bars are fixedly connected with a bottom connecting plate at the bottom of the steel tube core column, and the upper ends of the vertical steel bars correspondingly penetrate through a top connecting plate; the stirrups are hooped on the outer sides of a group of vertical steel bars along the vertical interval.
Preferably, a plurality of groups of shear nails are arranged on the outer wall of the steel tube core column at intervals along the circumferential direction; each group of shear pins is arranged at vertical intervals.
Preferably, the lower ends of the vertical steel bars are connected to the bottom surface of the bottom connecting plate in an inwards bending way.
Preferably, a second through hole is arranged on the plate surface of the top connecting plate at a position corresponding to the vertical steel bar; the upper end of the vertical steel bar passes through the second through hole of the top connecting plate.
Preferably, when the steel tube core columns are provided with one group, the steel tube core columns of one group are vertically arranged at intervals, and the intervals between the adjacent steel tube core columns are arranged at the positions of the steel beams to be connected; two vertically adjacent steel pipe core columns are connected through a beam connecting plate; the section of the beam connecting plate is I-shaped, the upper flange of the beam connecting plate is connected with the bottom connecting plate of the upper layer steel tube core column, and the lower flange of the beam connecting plate is connected with the top connecting plate of the lower layer steel tube core column; the upper ends of the vertical steel bars outside the steel tube core columns at the lowest layer penetrate through the bottom connecting plate at the bottom of the steel tube core column at the upper layer and are connected with the lower ends of the vertical steel bars at the upper layer.
Preferably, the lower end of the bottommost steel tube core column is inserted into a cup mouth at the top of the cup mouth foundation, and a steel wedge is arranged between the side wall of the cup mouth and the corresponding positioning bracket in a cushioning manner.
Compared with the prior art, the utility model has the following characteristics and beneficial effects.
1. According to the assembled type combined column structure, the positioning brackets are arranged at intervals outside the steel tube core column, the vertical steel bars of the steel bar cage pass through the perforations of the positioning brackets firstly, and then the horizontal steel bars outside the steel tube core column are bound, so that the positioning and limiting requirements of a prefabrication process of the vertical steel bars outside the core column are met, and the limiting, fixing and fine-tuning functions of the core column after the core column is inserted into a cup foundation are realized; the traditional construction process of the combined column is changed, the construction process of firstly installing the reinforcement cage and then constructing the side wall of the foundation cup rim and the ground beam is changed into the construction process of prefabricating the cup mouth socket and spigot, and the combined column is combined with the core column flange for butt joint, so that the combined column is constructed efficiently and quickly.
2. After the steel tube core column is manufactured, binding work of the reinforcement cage can be carried out under the state that the steel tube core column is horizontally placed, and an integral reinforcement cage with the core column is formed; compared with the traditional steel bar cage for in-situ vertical binding of steel bars, the method has the advantages that the horizontal binding speed of the steel bars is 4-5 times that of the vertical binding, and the binding speed is greatly improved. In addition, the reinforcement cage for the binding column outside the field belongs to one type of prefabricated construction, does not occupy the key construction period of the main structural engineering, and provides a plurality of working surfaces for the engineering, so that the overall construction progress can be accelerated.
3. According to the horizontal binding column steel bar, steel bar joints are greatly reduced, and especially the bottom column and even the bottom 1-2 layers of columns are not provided with the steel bar joints, so that the anti-seismic performance of the structure is greatly improved.
Drawings
The utility model is described in further detail below with reference to the accompanying drawings.
Fig. 1 is a schematic plan view of a connection structure of a steel pipe core column and a steel beam in the present utility model.
Fig. 2 is an elevation schematic view of a connection structure of a steel pipe core column and a steel beam in the present utility model.
Fig. 3 is a schematic structural view of the steel tube core column inserted in the cup rim foundation in the utility model.
Fig. 4 is a schematic structural view of a steel die pillar according to the present utility model.
Fig. 5 is a schematic diagram of a connection structure between a positioning bracket and a steel pipe core column in the utility model.
Reference numerals: 1-steel tube core column, 2-reinforcement cage, 2.1-vertical reinforcement, 2.2-stirrup, 3-locating support, 3.1-locating frame, 3.2-connecting short column, 4-perforation, 5-bottom connecting plate, 6-top connecting plate, 7-shear pin, 8-first through hole, 9-second through hole, 10-steel beam, 11-beam connecting plate, 12-rim of a cup foundation, 13-steel wedge, 14-ground beam, 15-anchor bar.
Detailed Description
As shown in fig. 1-5, the assembled combined column structure with the steel reinforcement cage comprises a steel tube core column 1 and a steel reinforcement cage 2; the device also comprises a positioning bracket 3; the positioning bracket 3 is arranged at the outer side of the steel tube core column 1 and close to the lower end of the steel tube core column 1; the positioning bracket 3 comprises a positioning frame 3.1 and a connecting short column 3.2; the positioning frame 3.1 is annular and sleeved outside the steel pipe core column 1, and the inner diameter of the positioning frame 3.1 is larger than the diameter of the steel pipe core column 1; perforations 4 are arranged on the positioning frame 3.1 at intervals along the circumferential direction; the connecting short columns 3.2 are arranged between each positioning frame 3.1 and the steel pipe core column 1 at intervals along the circumferential direction, and the positioning frames 3.1 are fixedly connected with the steel pipe core column 1 by the group of connecting short columns 3.2; the lower end of the steel tube core column 1 is connected with a bottom connecting plate 5, and the upper end of the steel tube core column 1 is connected with a top connecting plate 6; the reinforcement cage 2 comprises vertical reinforcement bars 2.1 and stirrups 2.2; the vertical steel bars 2.1 are provided with a group, and the group of vertical steel bars 2.1 are correspondingly arranged in the perforations 4 on the positioning frame 3.1 in a penetrating way; the lower end of the vertical steel bar 2.1 is fixedly connected with a bottom connecting plate 5 at the bottom of the steel tube core column, and the upper end of the vertical steel bar 2.1 correspondingly penetrates through a top connecting plate 6; the stirrups 2.2 are hooped on the outer sides of a group of vertical steel bars 2.1 along the vertical interval.
In this embodiment, a plurality of groups of shear pins 7 are circumferentially arranged on the outer wall of the steel pipe core column 1 at intervals; each group of shear pins 7 is arranged at vertical intervals.
In this embodiment, the lower end of the vertical steel bar 2.1 is connected to the bottom surface of the bottom connecting plate 5 in an inward bending manner.
In the embodiment, when the steel pipe core columns 1 are provided with one group, the steel pipe core columns 1 are vertically arranged at intervals, and the intervals between the adjacent steel pipe core columns 1 are arranged at the positions of the steel beams 10 to be connected; two vertically adjacent steel pipe core columns 1 are connected through a beam connecting plate 11; the section of the beam connecting plate 11 is I-shaped, the upper flange of the beam connecting plate 11 is connected with the bottom connecting plate 5 of the upper layer steel tube core column, and the lower flange of the beam connecting plate 11 is connected with the top connecting plate 6 of the lower layer steel tube core column; first through holes 8 are formed in the bottom connecting plate 5 at intervals along the circumferential direction; the upper end of the vertical steel bar 2.1 outside the lowest layer steel tube core column passes through the top connecting plate 6 at the top and the bottom connecting plate 5 of the upper layer steel tube core column and is connected with the lower end of the vertical steel bar 2.1 on the upper layer. The length of the steel pipe core column 1 at the bottommost layer is 14.74m, the steel pipe core column is horizontally bound on site, each vertical steel bar 2.1 is not provided with a joint at one layer, a joint is arranged at the two layers, the steel bar joints are connected by adopting sleeve connection, and a group of steel bar joints connected with adjacent steel bar cages 2 are not in the same horizontal plane.
In this embodiment, a second through hole 9 is disposed on the plate surface of the top connecting plate 6 at a position corresponding to the vertical steel bar 2.1; the upper end of the vertical steel bar 2.1 passes through the second through hole 9 of the top connecting plate 6.
In the embodiment, the lower end of the bottommost steel tube core column 1 is inserted into a cup mouth at the top of a cup mouth foundation 12, and a steel wedge 13 is arranged between the side wall of the cup mouth and the corresponding positioning bracket 3 in a cushioning manner.
In the embodiment, cup rim foundations 12 are arranged at the bottom of the column, and the transversely adjacent cup rim foundations 12 and the longitudinally adjacent cup rim foundations 12 are connected through ground beams 14; anchor bars 15 are pre-buried at the bottom of the cup mouth; the lower ends of the anchor bars 15 are pre-buried in the cup rim foundation 12, and the upper ends of the anchor bars 15 penetrate through the bottom connecting plate 5 at the bottom of the lowest layer steel pipe core column 1; the upper ends of the anchor bars 15 are fixed through nuts; c40 micro-expansion concrete is poured between the lowest layer steel pipe core column 1 and the side wall of the cup opening; during hoisting, the steel tube core column 1 and the steel reinforcement cage 2 are integrally hoisted together, so that the lower end of the steel tube core column 1 is inserted into the cup rim foundation 12; then, C40 micro-expansion concrete is poured between the lowest layer steel tube core column 1 and the side wall of the cup opening, and column body concrete at the outer side of the steel tube core column 1 is poured.
In this embodiment, the horizontal section of the steel tube core column 1 is circular, and of course, in other embodiments, the steel tube core column 1 may also be a rectangular section core column.
In this embodiment, the positioning frame 3.1 is rectangular, and the connecting studs 3.2 are respectively connected between four sides of the positioning frame 3.1 and the steel die pillar 1.
In this embodiment, the beam connection plate 11 is used to connect with the steel beam 10 for post construction.
In this embodiment, the assembled type combined column structure integral hoisting installation of the steel reinforcement cage is taken to the stem: the steel reinforcement cage 2 outside the pipe is integrally bound with the steel pipe core column 1 by utilizing the strength of the steel pipe core column 1, and is integrally hoisted in place; positioning and calibrating the steel tube core column 1 with the outer reinforcement cage 2, then pouring concrete at the cup opening, and finally installing a steel beam; compared with full-prefabricated integral hoisting of the inner and outer concrete of the steel tube core column 1, the construction method greatly reduces the hoisting weight of single components, so that a large crane is not needed on site, and the construction of engineering in a narrow site is ensured; compared with the conventional method of firstly hanging the core column and vertically binding the reinforcing steel bars, the construction progress is greatly accelerated, and the seemingly complex construction procedure is simplified.

Claims (6)

1. The assembled type combined column structure with the steel reinforcement cage on the core column comprises a steel core column (1) and a steel reinforcement cage (2); the method is characterized in that: the device also comprises a positioning bracket (3); the positioning bracket (3) is arranged at the outer side of the steel tube core column (1) and close to the lower end of the steel tube core column (1); the positioning bracket (3) comprises a positioning frame (3.1) and a connecting short column (3.2); the positioning frame (3.1) is annular and sleeved outside the steel pipe core column (1), and the inner diameter of the positioning frame (3.1) is larger than the diameter of the steel pipe core column (1); perforations (4) are arranged on the positioning frame (3.1) at intervals along the circumferential direction; the connecting short columns (3.2) are arranged between each positioning frame (3.1) and the steel pipe core column (1) at intervals along the circumferential direction, and the positioning frames (3.1) are fixedly connected with the steel pipe core column (1) through the group of connecting short columns (3.2); the lower end of the steel tube core column (1) is connected with a bottom connecting plate (5), and the upper end of the steel tube core column (1) is connected with a top connecting plate (6); the reinforcement cage (2) comprises vertical reinforcements (2.1) and stirrups (2.2); the vertical steel bars (2.1) are provided with a group, and the group of vertical steel bars (2.1) are correspondingly arranged in the perforations (4) on the positioning frame (3.1) in a penetrating way; the lower end of the vertical steel bar (2.1) is fixedly connected with a bottom connecting plate (5) at the bottom of the steel tube core column, and the upper end of the vertical steel bar (2.1) correspondingly penetrates through a top connecting plate (6); the stirrups (2.2) are hooped at the outer sides of a group of vertical steel bars (2.1) along vertical intervals.
2. The assembled modular stem with reinforcement cage structure of claim 1, wherein: a plurality of groups of shear nails (7) are circumferentially arranged on the outer wall of the steel tube core column (1) at intervals; each group of shear pins (7) is arranged at intervals in the vertical direction.
3. The assembled modular stem with reinforcement cage structure of claim 1, wherein: the lower end of the vertical steel bar (2.1) is connected to the bottom surface of the bottom connecting plate (5) in an inwards bending way.
4. The assembled modular stem with reinforcement cage structure of claim 1, wherein: a second through hole (9) is formed in the plate surface of the top connecting plate (6) at a position corresponding to the vertical steel bar (2.1); the upper end of the vertical steel bar (2.1) passes through a second through hole (9) of the top connecting plate (6).
5. The assembled modular stem with reinforcement cage structure of claim 1, wherein: when the steel tube core columns (1) are provided with one group, the steel tube core columns (1) are vertically arranged at intervals, and the intervals between the adjacent steel tube core columns (1) are arranged at the positions of the steel beams (10) to be connected; two vertically adjacent steel pipe core columns (1) are connected through a beam connecting plate (11); the section of the beam connecting plate (11) is I-shaped, the upper flange of the beam connecting plate (11) is connected with the bottom connecting plate (5) of the upper layer steel tube core column, and the lower flange of the beam connecting plate (11) is connected with the top connecting plate (6) of the lower layer steel tube core column; the upper end of a vertical steel bar (2.1) at the outer side of the steel tube core column at the lowest layer passes through a bottom connecting plate (5) at the bottom of the steel tube core column at the upper layer and is connected with the lower end of the vertical steel bar (2.1) at the upper layer.
6. The assembled modular stem with reinforcement cage structure of claim 5, wherein: the lower end of the bottommost steel pipe core column (1) is inserted into a cup mouth at the top of a cup mouth foundation (12), and a steel wedge (13) is arranged between the side wall of the cup mouth and the corresponding positioning bracket (3).
CN202321678565.6U 2023-06-29 2023-06-29 Assembly type combined column structure with steel reinforcement cage on core column Active CN220267019U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202321678565.6U CN220267019U (en) 2023-06-29 2023-06-29 Assembly type combined column structure with steel reinforcement cage on core column

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202321678565.6U CN220267019U (en) 2023-06-29 2023-06-29 Assembly type combined column structure with steel reinforcement cage on core column

Publications (1)

Publication Number Publication Date
CN220267019U true CN220267019U (en) 2023-12-29

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ID=89319000

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202321678565.6U Active CN220267019U (en) 2023-06-29 2023-06-29 Assembly type combined column structure with steel reinforcement cage on core column

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Country Link
CN (1) CN220267019U (en)

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