A connecting structure of a precast steel reinforced concrete column

Abstract

The utility model relates to the technical field of prefabricated steel reinforced concrete column and prefabricated floor connection, especially to a kind of connecting structure of prefabricated steel reinforced concrete column, it can effectively avoid on-site wet operation, improve prefabricated steel reinforced concrete column and prefabricated floor connection construction efficiency;Including prefabricated steel reinforced concrete column and prefabricated floor, connecting component is arranged between the prefabricated steel reinforced concrete column and prefabricated floor, connecting component includes upper connecting piece and lower connecting piece, and prefabricated steel reinforced concrete column and prefabricated floor are fixedly connected together by the cooperation of upper connecting piece and lower connecting piece.

Description

Technical Field

[0001] This utility model relates to the technical field of connecting precast steel-reinforced concrete columns with precast floor slabs, and in particular to a connection structure for precast steel-reinforced concrete columns. Background Technology

[0002] Precast steel-reinforced concrete columns refer to high-rise buildings in which steel sections are placed inside the columns to enhance their load-bearing capacity in order to compress the concrete column cross-section. Commonly used steel sections include cruciform and square tube shapes.

[0003] In existing technologies, precast steel-reinforced concrete columns are usually connected to floor slabs by cast-in-place or grout anchoring. However, these methods cannot avoid on-site wet work and reduce the construction efficiency of precast concrete structures. Therefore, a new connection structure is urgently needed to solve this problem. Utility Model Content

[0004] To solve the above-mentioned technical problems, this utility model provides a connection structure for precast steel-concrete columns that can effectively avoid on-site wet work and improve the construction efficiency of connecting precast steel-concrete columns with precast floor slabs.

[0005] Technical solution

[0006] To achieve the above objectives, this utility model provides the following technical solution: a connection structure for precast steel-reinforced concrete columns, comprising precast steel-reinforced concrete columns and precast floor slabs, characterized in that a connecting component is provided between the precast steel-reinforced concrete columns and the precast floor slabs, the connecting component comprising an upper connecting member and a lower connecting member, the upper connecting member comprising a connecting plate, a through hole being formed in the center of the connecting plate, and connecting plate bolt holes being formed at the four corners of the connecting plate with the through hole as the center, each connecting plate bolt being inserted into each connecting plate bolt hole, and four connecting plate bolts being formed at the connection points between the precast floor slabs and the connecting plate. The bolt holes correspond to the threaded holes on the connecting plate, and the bolts on the connecting plate are matched with the threaded holes. The connecting plate is fixed to the bottom connection point of the precast floor slab through the matching of the bolts and the threaded holes. A center bolt hole is opened at the center of the connection point of the precast floor slab. The center bolt hole is coaxial with the through hole. A center bolt is inserted into the center bolt hole and passes through the through hole. Four sets of positioning columns are fixedly fixed at equal intervals in a ring around the through hole at the bottom end of the connecting plate. The lower connecting component includes a steel frame connecting component. The top of the precast steel frame concrete column has a splicing groove that matches the shape of the steel frame connecting component. The precast steel-reinforced concrete column has two bolt holes on its upper left and right sides, each connected to the splicing groove. Each bolt hole contains a bolt. Two threaded holes, matching the bolts, are located on the sides of the steel connector. The steel connector is secured in the splicing groove by the engagement of the bolts and threaded holes. The top dimensions of the steel connector are the same as the precast steel-reinforced concrete column. A connecting column is fixedly connected to the center of the top of the steel connector. Four positioning holes, equidistant from the connecting column, are circumferentially spaced on the top of the steel connector to match the positioning columns. The top of the precast steel-reinforced concrete column has four bottom holes on both sides of the splicing groove corresponding to the positioning holes. The top of the connecting column extends downward with threaded connection holes that extend into the steel frame connector. The connecting plate, through the through hole, is positioned and connected to the connecting column and the positioning column and positioning hole, and is placed on the top of the steel frame connector. The positioning column passes through the positioning hole and is inserted into the bottom hole. The top of the connecting column is aligned with the top of the connecting plate. The connecting plate is fixed to the steel frame connector by the threaded engagement of the threaded connection hole with the central bolt. The precast steel-reinforced concrete column and the precast floor slab are fixedly connected together by the connecting plate and the steel frame connector.

[0007] Preferably, spring washers matching their respective dimensions are fitted onto the connecting plate bolts, center bolts, and connecting bolts.

[0008] Preferably, the bolt holes of the connecting plate, the center bolt hole, and the bolt holes of the connecting piece are all countersunk holes, and the bolts of the connecting plate, the center bolt, and the connecting piece are all internal hexagonal bolts.

[0009] Compared with the prior art, the beneficial effects of this utility model are as follows: In use, by installing steel frame connectors on the top of the precast steel-reinforced concrete column and connecting plates on the bottom of the precast floor slab, the precast steel-reinforced concrete column and the precast floor slab are fixed together by connecting the connecting plates and the steel frame connectors, which replaces the traditional cast-in-place or grouting anchoring method. This can effectively avoid on-site wet work and improve construction efficiency. Attached Figure Description

[0010] Figure 1 This is a schematic diagram of the isometric structure of this utility model; Figure 2 This is a schematic diagram of the bottom isometric structure of this utility model; Figure 3 This is an isometric exploded view of the present invention; Figure 4 This is a schematic diagram of the exploded structure of this utility model from an upward-viewing axonometric perspective; Figure 5 This is an isometric sectional view of the connection between the steel frame connector and the docking column in this utility model. The following labels are used in the attached diagram: 1. Precast steel-reinforced concrete column; 2. Precast floor slab; 3. Connecting component; 4. Connecting plate; 5. Through hole; 6. Connecting plate bolt hole; 7. Connecting plate bolt; 8. Connecting plate threaded hole; 9. Center bolt hole; 10. Center bolt; 11. Positioning column; 12. Steel frame connector; 13. Splicing groove; 14. Connecting bolt hole; 15. Connecting bolt; 16. Connecting threaded hole; 17. Butt joint column; 18. Positioning hole; 19. Threaded butt joint hole; 20. Spring washer. Detailed Implementation

[0011] The specific embodiments of this utility model will be further described in detail below with reference to the accompanying drawings and examples. The following examples are used to illustrate this utility model, but are not intended to limit the scope of this utility model.

[0012] Example

[0013] Please see Figures 1-5This utility model discloses a connection structure for a precast steel-reinforced concrete column, comprising a precast steel-reinforced concrete column 1, a precast floor slab 2, a connecting plate 4, and steel connecting parts 12. A through hole 5 is formed in the center of the connecting plate 4, and connecting plate bolt holes 6 are formed at the four corners of the connecting plate 4 with the through hole 5 as the center. A connecting plate bolt 7 is inserted into each connecting plate bolt hole 6. At the connection point between the precast floor slab 2 and the connecting plate 4, four connecting plate threaded holes 8 are formed at the bottom, corresponding to the positions of the connecting plate bolt holes 6. The connecting plate bolts 7 and the connecting plate threaded holes 8 are matched. The connecting plate 4 is fixed to the bottom connection point of the precast floor slab 2 by the cooperation of the connecting plate bolts 7 and the connecting plate threaded holes 8. A central connecting part is formed at the center of the connection point of the precast floor slab 2. Bolt hole 9, the central bolt hole 9 is coaxial with through hole 5, and a central bolt 10 is inserted into the central bolt hole 9. The central bolt 10 passes through through hole 5. Four sets of positioning posts 11 are fixedly connected in a ring at equal intervals around through hole 5 at the bottom end of connecting plate 4. The top of precast steel-reinforced concrete column 1 has a splicing groove 13 that matches the shape of steel-reinforced connector 12, and the splicing groove 13 is open from front to back. Two connector bolt holes 14 are opened on the upper sides of both the left and right ends of precast steel-reinforced concrete column 1, which are connected to the splicing groove 13. A connector bolt 15 is inserted into each connector bolt hole 14. Two connector threaded holes 16 are opened on the middle of both sides of steel-reinforced connector 12 to match the connector bolt 15. The steel-reinforced connector 12 is connected to the connector bolt 16 by the connection bolt 16. 5. The connecting plate 12 is fixedly installed in the splicing groove 13 with the threaded hole 16 of the connector. The top size of the steel frame connector 12 is the same as that of the precast steel frame concrete column 1. The center of the top of the steel frame connector 12 is fixedly connected to the docking post 17. The top of the steel frame connector 12 has four positioning holes 18 that match the positioning posts 11, which are equidistantly arranged in a ring around the docking post 17. The top of the precast steel frame concrete column 1 has four bottom holes on both sides of the splicing groove 13, corresponding to the positions of the positioning holes 18. The top of the docking post 17 has a threaded docking hole 19 extending downwards into the steel frame connector 12. The connecting plate 4 is connected to the docking post 17 and the positioning posts 11 and the positioning holes 18 through the through hole 5. At the top, the positioning column 11 passes through the positioning hole 18 and is inserted into the bottom hole. The top of the butt column 17 is aligned with the top of the connecting plate 4. The connecting plate 4 is fixed to the steel frame connector 12 by the threaded engagement of the central bolt 10 and the threaded butt hole 19. The precast steel-concrete column 1 and the precast floor slab 2 are fixed together by the connection plate 4 and the steel frame connector 12. In use, the precast steel-concrete column 1 and the precast floor slab 2 are fixed together by installing the steel frame connector 12 on the top of the precast steel-concrete column 1 and the connecting plate 4 on the bottom of the precast floor slab 2, and then the precast steel-concrete column 1 and the precast floor slab 2 are fixed together by connecting the connecting plate 4 and the steel frame connector 12. This replaces the traditional cast-in-place or grout anchoring method, which can effectively avoid on-site wet work and improve construction efficiency.

[0014] Spring washers 20 are fitted on the connecting plate bolts 7, center bolts 10 and connecting bolts 15, each matching their respective dimensions. By setting the spring washers 20, the connecting plate bolts 7, center bolts 10 and connecting bolts 15 are less likely to loosen during connection, making the connection between the precast steel-reinforced concrete column 1 and the precast floor slab 2 more secure.

[0015] The connecting plate bolt hole 6, the center bolt hole 9, and the connector bolt hole 14 are all countersunk holes, and the connecting plate bolt 7, the center bolt 10, and the connector bolt 15 are all internal hexagonal bolts. By adopting a countersunk hole structure, the bolts can be embedded in the holes during connection, making the connection surface flat and improving the connection strength.

[0016] This utility model discloses a connection structure for a precast steel-reinforced concrete column. In operation, both the connecting plate 4 and the steel frame connector 12 are prefabricated components in the factory. During connection, the steel frame connector 12 is first inserted into the splicing groove 13, aligning the bolt holes 14 and threaded holes 16. Then, the connecting bolts 15 are screwed in, fixing the steel frame connector 12 to the top of the precast steel-reinforced concrete column 1. Finally, the connecting plate 4 is fixed to the bottom of the precast floor slab 2 using the connecting plate bolts 7, thus securing the connecting plate 4 to the precast floor slab 2. Then, the connecting plate 4 is connected to the steel frame connector 12. During the connection, the connecting column 17 is inserted into the through hole 5, and the positioning column 11 is inserted into the positioning hole 18 and the bottom hole at the top of the precast steel frame concrete column 1. After the connecting plate 4 and the steel frame connector 12 are connected, the center bolt 10 is passed through the center bolt hole 9 and the through hole 5 and screwed into the threaded connection hole 19. The connecting plate 4 and the steel frame connector 12 are fixed together by the threaded connection between the center bolt 10 and the threaded connection hole 19, thereby completing the connection between the precast steel frame concrete column 1 and the precast floor slab 2.

[0017] The connection structure of the precast steel-reinforced concrete column of this utility model has common mechanical methods in terms of installation, connection or setting. Any method that can achieve its beneficial effect can be implemented.

[0018] The above description is only a preferred embodiment of the present utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the technical principles of the present utility model, and these improvements and modifications should also be considered within the protection scope of the present utility model.

Claims

1. A connection structure for precast steel-reinforced concrete columns, comprising precast steel-reinforced concrete columns (1) and precast floor slabs (2), characterized in that, A connecting member (3) is provided between the precast steel-reinforced concrete column (1) and the precast floor slab (2). The connecting member (3) includes an upper connecting member and a lower connecting member. The precast steel-reinforced concrete column (1) and the precast floor slab (2) are fixedly connected together by the cooperation of the upper connecting member and the lower connecting member.

2. The connection structure of a precast steel-reinforced concrete column as described in claim 1, characterized in that, The upper connector includes a connecting plate (4), with a through hole (5) in the center of the connecting plate (4). Connecting plate bolt holes (6) are formed at the four corners of the connecting plate (4) with the through hole (5) as the center. A connecting plate bolt (7) is inserted into each connecting plate bolt hole (6). At the connection point between the precast floor slab (2) and the connecting plate (4), four connecting plate threaded holes (8) are formed at the bottom, corresponding to the positions of the connecting plate bolt holes (6). The connecting plate bolts (7) are matched with the connecting plate threaded holes (8). The connecting plate (4) is fixed at the bottom connection point of the precast floor slab (2) by the connection plate bolt (7) and the connecting plate threaded hole (8). The precast floor slab (2) has a center bolt hole (9) at the center of the connection point. The center bolt hole (9) is coaxial with the through hole (5). A center bolt (10) is inserted into the center bolt hole (9). The center bolt (10) passes through the through hole (5). Four sets of positioning columns (11) are fixed at equal intervals in a ring around the bottom of the connecting plate (4) with the through hole (5) as the center.

3. The connection structure of a precast steel-reinforced concrete column as described in claim 2, characterized in that, The lower connector includes a steel frame connector (12). The top of the precast steel frame concrete column (1) is provided with a splicing groove (13) that matches the shape of the steel frame connector (12), and the splicing groove (13) is through. The upper sides of both ends of the precast steel frame concrete column (1) are provided with two connector bolt holes (14) that are connected to the splicing groove (13). Each connector bolt hole (14) is filled with a connector bolt (15). The middle of both sides of the steel frame connector (12) is provided with two connector thread holes (16) that match the connector bolts (15). The steel frame connector (12) is fixedly installed in the splicing groove (13) by the cooperation of the connector bolts (15) and the connector thread holes (16). The top size of the steel frame connector (12) is the same as that of the precast steel frame concrete column (1). A docking column (17) is fixedly connected to the center of the top of the steel frame connector (12). The top of the steel frame connector (12) is provided with four positioning holes (18) that match the positioning column (11) in a ring with the docking column (17) as the axis. The top of the precast steel frame concrete column (1) is provided with four bottom holes on both sides of the splicing groove (13) corresponding to the positions of the positioning holes (18). The top of the docking column (17) extends downward with a threaded docking hole (19). The threaded docking hole (19) extends into the steel frame connector (12). The connecting plate (4) is positioned and docked with the docking column (17) and the positioning column (11) and the positioning hole (18) through the through hole (5) at the top of the steel frame connector (12). The positioning column (11) passes through the positioning hole (18) and is inserted into the bottom hole. The top of the docking column (17) is aligned with the top of the connecting plate (4). The connecting plate (4) is fixed to the steel frame connector (12) by the threaded engagement of the central bolt (10) and the threaded docking hole (19).

4. The connection structure of a precast steel-reinforced concrete column as described in claim 3, characterized in that, Spring washers (20) are fitted on the connecting plate bolts (7), center bolts (10) and connecting bolts (15) to match their respective dimensions.

5. The connection structure of a precast steel-reinforced concrete column as described in claim 4, characterized in that, The connecting plate bolt hole (6), the center bolt hole (9), and the connecting piece bolt hole (14) are all countersunk holes, and the connecting plate bolt (7), the center bolt (10), and the connecting piece bolt (15) are all internal hexagonal bolts.

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