Fully-prefabricated steel reinforced concrete column

Abstract

The utility model discloses a fully-prefabricated steel reinforced concrete column, and mainly relates to the technical field of concrete beam columns. Comprising a steel column arranged on a base, a plurality of stirrups are arranged on the outer side of the steel column in a sleeving mode, a bottom plate making contact with the base is arranged at the bottom of the steel column, a plurality of longitudinal bars connected with the stirrups are arranged on the bottom plate, a concrete column is poured on the outer side of the steel column, and a plurality of first connecting rods are arranged at the end of the bottom plate; the base is provided with a plurality of prefabricated holes allowing the first connecting rods to penetrate, a plurality of wedge blocks are arranged on the side faces of the first connecting rods, and the side faces of the wedge blocks make contact with the prefabricated holes. The utility model has the beneficial effects that the problem of long site construction period of the concrete beam column is solved, and the construction efficiency and quality of the concrete beam column are improved.

Description

Technical Field

[0001] The utility model relates to the technical field of steel-framed concrete columns, in particular to a fully prefabricated steel-framed concrete column. Background Art

[0002] In current steel-structured residential projects, above-ground steel columns need to extend a certain distance into the basement, typically the height of one floor. Due to the high humidity in basements, concrete beams and columns are often used. Therefore, in the underground portion of steel-structured residential buildings, the steel columns extending underground are often encased in concrete, forming steel-reinforced concrete columns.

[0003] The current construction method typically involves installing the steel column in place after the foundation or floor beneath it is completed, securing it with pre-set anchor bolts. Once the column is positioned correctly, grouting is performed between the column base plate and the concrete. Stirrups and longitudinal reinforcement are then installed around the concrete-wrapped portion of the column, and then formwork and concrete are poured. This approach has the following disadvantages:

[0004] 1. The on-site work is large, involving steel column installation, steel column position calibration, concrete column stirrup and longitudinal reinforcement binding, concrete column formwork, concrete pouring and other processes, which takes a long time;

[0005] For single-story basements with high floor heights, high formwork increases the danger of the construction site. Utility Model Content

[0006] The purpose of the utility model is to provide a fully prefabricated steel-concrete column to solve the problem of long on-site construction period of concrete beams and columns and to improve the construction efficiency and quality of concrete beams and columns.

[0007] To achieve the above purpose, the utility model is implemented through the following technical solutions:

[0008] A fully prefabricated steel-framed concrete column comprises a steel column arranged on a base, a plurality of stirrups being sleeved on the outer side of the steel column, a bottom plate being provided at the bottom of the steel column and being in contact with the base, a plurality of longitudinal bars being provided on the bottom plate and being connected to the stirrups, a concrete column being cast on the outer side of the steel column, a plurality of first connecting rods being provided at the end of the bottom plate, a plurality of prefabricated holes being provided on the base for the first connecting rods to pass through, a plurality of wedge blocks being provided on the side surfaces of the first connecting rods, and the side surfaces of the wedge blocks being in contact with the prefabricated holes.

[0009] Furthermore, the upper and lower side surfaces of the wedge block are respectively provided with a first inclined surface and a flat surface that are in contact with the prefabricated hole.

[0010] Furthermore, the end of the first connecting rod is provided with a second inclined surface in contact with the prefabricated hole.

[0011] A plurality of reinforcement nails are provided on both sides of the steel column.

[0012] Furthermore, a second connecting rod is provided on the base, convex plates are provided around the bottom plate, through holes are provided on the convex plates for the second connecting rod to pass through, and the end of the second connecting rod is threadedly connected with a nut in contact with the convex plate.

[0013] Furthermore, the second connecting rod is provided with a spiral plate in contact with the base.

[0014] Furthermore, the spiral plate is provided with a plurality of casting holes.

[0015] Furthermore, the convex plate is provided with a plurality of reinforcing plates connected to the stirrups.

[0016] Compared with the prior art, the beneficial effects of the present invention are:

[0017] 1. When prefabricating concrete columns in a factory, a base plate is first installed at the bottom of the steel column. Then, several stirrups are placed on the outside of the steel column. Subsequently, several longitudinal reinforcements are connected to the stirrups and the base plate respectively. At the same time, several first connecting rods are connected to the base plate. Finally, concrete is poured on the outside of the steel column. In this way, the steel-reinforced concrete column is prefabricated in the factory, eliminating the need for the more complicated on-site production of concrete columns, thereby improving the construction efficiency of the concrete columns and shortening the construction period of the concrete columns. In addition, the steel bars and longitudinal bars in the concrete columns can restrain the lateral deformation of the concrete, withstand the pressure on the concrete columns, and improve the compressive strength of the concrete columns.

[0018] 2. After the foundation is poured on site, the concrete column is transported to the site, and the concrete column is hoisted by a crane. The position of the concrete column on the base is moved so that the first connecting rod provided on the bottom plate corresponds to the prefabricated hole reserved in advance on the base. Then the concrete column is lowered downward so that the first connecting rod enters the prefabricated hole until the bottom plate contacts the base. At the same time, the friction force generated by the contact of several wedge blocks provided on the side of the first connecting rod with the prefabricated hole, combined with the self-gravity of the concrete column, limits the first connecting rod from detaching from the prefabricated hole, and the resistance generated between the first connecting rod and the prefabricated hole limits the movement of the concrete column on the base, thereby fixing the concrete column on the base and realizing the installation of the concrete column on site. At the same time, the steps of making the concrete column are simplified, the construction efficiency of the concrete column is improved, and the construction period of the concrete column is shortened. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Attachment Figure 1 It is a structural diagram of the base of the utility model.

[0020] Attachment Figure 2 It is a structural schematic diagram of the steel column of the utility model.

[0021] Attachment Figure 3 This utility model is attached Figure 2 A partial enlarged view of area A in the middle.

[0022] Attachment Figure 4 It is a structural schematic diagram of the second connecting rod of the utility model.

[0023] Reference numerals shown in the accompanying drawings:

[0024] 1. Base; 2. Steel column; 3. Stirrups; 4. Bottom plate; 5. Longitudinal reinforcement; 6. Concrete column; 7. First connecting rod; 8. Precast hole; 9. Wedge block;

[0025] 10. First inclined surface; 11. Flat surface; 12. Second inclined surface; 13. Reinforcement nail;

[0026] 14. Second connecting rod; 15. Raised plate; 16. Through hole; 17. Nut; 18. Spiral plate; 19. Casting hole; 20. Reinforcement plate. DETAILED DESCRIPTION

[0027] The present invention will be further described below with reference to specific embodiments. It should be understood that these embodiments are intended only to illustrate the present invention and are not intended to limit the scope of the present invention. Furthermore, it should be understood that after reading the contents of this invention, those skilled in the art may make various changes or modifications to the present invention, and that these equivalent forms also fall within the scope defined in this application.

[0028] A fully prefabricated steel-reinforced concrete column, such as Figure 1 、 Figure 2 and Figure 3As shown, it includes a steel column 2 set on a base 1, the outer side of the steel column 2 is provided with a plurality of stirrups 3, the bottom of the steel column 2 is provided with a bottom plate 4 in contact with the base 1, and the bottom plate 4 is provided with a plurality of longitudinal bars 5 connected to the stirrups 3, and a concrete column 6 is cast on the outer side of the steel column 2, and a bottom plate 4 is set at the bottom of the steel column 2, and then a plurality of stirrups 3 are sleeved on the outer side of the steel column 2, and then a plurality of longitudinal bars 5 are respectively connected to the stirrups 3 and the bottom plate 4, and a plurality of first connecting rods 7 are connected to the bottom plate 4, and finally concrete is poured on the outer side of the steel column 2, so that the steel-framed concrete column 6 is prefabricated in the factory, and there is no need to make the concrete column 6 on a more complicated site, thereby improving the construction efficiency of the concrete column 6 and shortening the construction period of the concrete column 6; in addition, the steel bars and longitudinal bars 5 built into the concrete column 6 can restrain the lateral deformation of the concrete and withstand the The bottom plate 4 is provided with a plurality of first connecting rods 7 at the end thereof, and a plurality of prefabricated holes 8 are provided on the base 1 for the first connecting rods 7 to pass through. The side of the first connecting rod 7 is provided with a plurality of wedge blocks 9, and the side of the wedge blocks 9 is in contact with the prefabricated holes 8. The bottom plate 4 is in contact with the base 1, and the friction force generated after the plurality of wedge blocks 9 provided on the side of the first connecting rod 7 contact the prefabricated holes 8, as well as the self-weight of the concrete column 6, limits the first connecting rod 7 from being separated from the prefabricated holes 8, and limits the movement of the concrete column 6 on the base 1 through the resistance generated between the first connecting rod 7 and the prefabricated holes 8, thereby fixing the concrete column 6 on the base 1, realizing the on-site installation of the concrete column 6, and simplifying the steps of making the concrete column 6, improving the construction efficiency of the concrete column 6, and shortening the construction period of making the concrete column 6.

[0029] Priority, such as Figure 2 and Figure 3 As shown, the upper and lower side surfaces of the wedge block 9 are respectively provided with a first inclined surface 10 and a plane 11 that are in contact with the precast hole 8. The first inclined surface 10 is in contact with the precast hole 8, so as to reduce the resistance exerted by the precast hole 8 on the first connecting rod 7, so that the first connecting rod 7 can slide smoothly into the precast hole 8, thereby improving the construction efficiency of the concrete column 6 and shortening the construction period of the concrete column 6; the plane 11 is in contact with the precast hole 8, so as to increase the resistance between the first connecting rod 7 and the precast hole 8 during the upward movement of the first connecting rod 7, thereby preventing the first connecting rod 7 from sliding out of the precast hole 8 and improving the stability of the overall structure of the concrete column 6.

[0030] Priority, such as Figure 2 and Figure 3As shown, the end of the first connecting rod 7 is provided with a second inclined surface 12 in contact with the prefabricated hole 8. The second inclined surface 12 contacts the prefabricated hole 8, which facilitates the adjustment of the position of the first connecting rod 7 on the base 1, so that the first connecting rod 7 can smoothly enter the prefabricated hole 8, thereby improving the construction efficiency of the concrete column 6 and shortening the construction period of the concrete column 6.

[0031] Priority, such as Figure 1 and Figure 2 As shown, a plurality of reinforcing nails 13 are provided on both sides of the steel column 2 to further strengthen the lateral deformation of the restrained concrete, withstand the pressure on the concrete column 6, and improve the compressive strength of the concrete column 6.

[0032] Priority, such as Figure 2 and Figure 4 As shown, the base 1 is provided with a second connecting rod 14, and convex plates 15 are provided on all four sides of the bottom plate 4. The convex plates 15 are provided with through holes 16 for the second connecting rod 14 to pass through. The end of the second connecting rod 14 is threadedly connected with a nut 17 in contact with the convex plate 15. By pre-embedding the second connecting rod 14 on the base 1 in advance, when placing the concrete column 6, the second connecting rod 14 is passed through the corresponding through hole 16 on the convex plate 15. After the concrete column 6 is placed, the nut 17 is rotated at the end of the second connecting rod 14 so that one side of it contacts the convex plate 15. The resistance generated limits the movement of the convex plate 15 relative to the base 1, thereby further fixing the bottom plate 4 on the base 1, improving the stability of the concrete column 6 on the base 1, and improving the compressive strength of the concrete column 6.

[0033] Priority, such as Figure 2 and Figure 4 As shown, the second connecting rod 14 is provided with a spiral plate 18 in contact with the base 1, which further increases the resistance between the second connecting rod 14 and the base 1, preventing the second connecting rod 14 from detaching from the base 1, thereby more firmly fixing the concrete column 6 on the base 1 and improving the compressive strength of the concrete column 6.

[0034] Priority, such as Figure 4 As shown, the spiral plate 18 is provided with a plurality of casting holes 19, so that when the base 1 is cast, concrete can pass through the spiral plate 18 from the plurality of casting holes 19, avoiding the presence of hollow holes between the spiral plates 18, thereby increasing the resistance between the spiral plate 18 and the base 1, more firmly fixing the concrete column 6 on the base 1, and improving the compressive strength of the concrete column 6.

[0035] Priority, such as Figure 1 and Figure 2 As shown, the convex plate 15 is provided with a plurality of reinforcing plates 20 connected to the stirrups 3 to bear the lateral pressure of the concrete column 6 and further improve the compressive strength of the concrete column 6.

[0036] Example 1

[0037] The utility model provides a fully prefabricated steel-concrete column, such as Figure 1 、 Figure 2 and Figure 3 As shown, when the concrete column 6 is prefabricated in the factory, a base plate 4 is first set at the bottom of the steel column 2, and then a plurality of stirrups 3 are sleeved on the outside of the steel column 2. Subsequently, a plurality of longitudinal bars 5 are respectively connected to the stirrups 3 and the base plate 4. At the same time, a plurality of first connecting rods 7 are connected to the base plate 4. Finally, concrete is poured on the outside of the steel column 2. In this way, the steel-reinforced concrete column 6 is prefabricated in the factory, eliminating the need for complex on-site production of the concrete column 6, thereby improving the construction efficiency of the concrete column 6 and shortening the construction period of the concrete column 6. In addition, the steel bars and longitudinal bars 5 built into the concrete column 6 can restrain the lateral deformation of the concrete, withstand the pressure on the concrete column 6, and improve the compressive strength of the concrete column 6.

[0038] After the pouring of the foundation is completed on site, the concrete column 6 is transported to the site, and the concrete column 6 is hoisted by a crane, and the position of the concrete column 6 on the base 1 is moved so that the first connecting rod 7 provided on the bottom plate 4 corresponds to the prefabricated hole 8 reserved in advance on the base 1. Then the concrete column 6 is lowered downward so that the first connecting rod 7 enters the prefabricated hole 8 until the bottom plate 4 contacts the base 1. At the same time, the friction force generated by the contact of several wedge blocks 9 provided on the side of the first connecting rod 7 with the prefabricated hole 8, combined with the self-gravity of the concrete column 6, limits the first connecting rod 7 from detaching from the prefabricated hole 8, and the resistance generated between the first connecting rod 7 and the prefabricated hole 8 limits the movement of the concrete column 6 on the base 1, thereby fixing the concrete column 6 on the base 1 and realizing the installation of the concrete column 6 on site. At the same time, it simplifies the steps of making the concrete column 6, improves the construction efficiency of the concrete column 6, and shortens the construction period of making the concrete column 6.

[0039] Example 2

[0040] Based on Example 1, Figures 1-4 As shown, when pouring the base 1, several second screws are first placed in corresponding positions. When pouring concrete in the template, the upper layer of concrete can pass through the spiral plates 18 through the several pouring holes 19 provided on the spiral plates 18, thereby avoiding the presence of hollow holes between the spiral plates 18, thereby increasing the resistance between the spiral plates 18 and the base 1, more firmly fixing the concrete column 6 on the base 1, and improving the compressive strength of the concrete column 6;

[0041] When placing the concrete column 6, after the first connecting rod 7 and the prefabricated hole 8 are aligned, the second inclined surface 12 is first brought into contact with the prefabricated hole 8 to facilitate adjustment of the position of the first connecting rod 7 on the base 1, so that the first connecting rod 7 can smoothly enter the prefabricated hole 8, thereby improving the construction efficiency of the concrete column 6 and shortening the construction period of the concrete column 6; then, the first inclined surface 10 is brought into contact with the prefabricated hole 8 to reduce the resistance exerted by the prefabricated hole 8 on the first connecting rod 7, so that the first connecting rod 7 can smoothly slide into the prefabricated hole 8, thereby improving the construction efficiency of the concrete column 6 and shortening the construction period of the concrete column 6; the plane 11 is brought into contact with the prefabricated hole 8 to increase the resistance between the first connecting rod 7 and the prefabricated hole 8 during the upward movement of the first connecting rod 7 , preventing the first connecting rod 7 from sliding out of the prefabricated hole 8, thereby improving the stability of the overall structure of the concrete column 6; in addition, when placing the concrete column 6, the second connecting rod 14 and the through hole 16 on the convex plate 15 must also be aligned, so that the second connecting rod 14 passes through the corresponding through hole 16 on the convex plate 15. After the concrete column 6 is placed, the nut 17 is rotated at the end of the second connecting rod 14 so that one side contacts the convex plate 15. The resistance generated by the contact between the nut 17 and the convex plate 15 limits the movement of the convex plate 15 relative to the base 1, and cooperates with the resistance generated between the spiral plate 18 provided on the second connecting rod 14 and the base 1, thereby further fixing the bottom plate 4 on the base 1, improving the stability of the concrete column 6 on the base 1, and improving the compressive strength of the concrete column 6;

[0042] Example 3

[0043] Based on Example 2, Figure 1 and Figure 2 As shown, a number of reinforcing nails 13 are provided on both sides of the steel column 2 to further strengthen the lateral deformation of the restrained concrete, withstand the pressure on the concrete column 6, and improve the compressive strength of the concrete column 6; at the same time, a number of reinforcing plates 20 connected to the stirrups 3 are provided on the convex plate 15 to bear the lateral pressure of the concrete column 6 and further improve the compressive strength of the concrete column 6.

Claims

1. A fully prefabricated steel-reinforced concrete column, comprising a steel column (2) disposed on a base (1), characterized in that: The outer side of the steel column (2) is provided with a plurality of stirrups (3), the bottom of the steel column (2) is provided with a bottom plate (4) in contact with the base (1), the bottom plate (4) is provided with a plurality of longitudinal bars (5) connected to the stirrups (3), the outer side of the steel column (2) is cast with a concrete column (6), the end of the bottom plate (4) is provided with a plurality of first connecting rods (7), the base (1) is provided with a plurality of prefabricated holes (8) for the first connecting rods (7) to penetrate, the side of the first connecting rod (7) is provided with a plurality of wedge blocks (9), and the side of the wedge blocks (9) is in contact with the prefabricated holes (8).

2. The fully prefabricated steel-reinforced concrete column according to claim 1, characterized in that: The upper and lower side surfaces of the wedge block (9) are respectively provided with a first inclined surface (10) and a flat surface (11) that are in contact with the prefabricated hole (8).

3. The fully prefabricated steel-reinforced concrete column according to claim 1, characterized in that: The end of the first connecting rod (7) is provided with a second inclined surface (12) in contact with the prefabricated hole (8).

4. The fully prefabricated steel-reinforced concrete column according to claim 1, characterized in that: A plurality of reinforcement nails (13) are provided on both sides of the steel column (2).

5. The fully prefabricated steel-reinforced concrete column according to claim 1, characterized in that: A second connecting rod (14) is provided on the base (1), convex plates (15) are provided on all four sides of the bottom plate (4), and a through hole (16) is provided on the convex plate (15) for the second connecting rod (14) to pass through. The end of the second connecting rod (14) is threadedly connected to a nut (17) in contact with the convex plate (15).

6. The fully prefabricated steel-reinforced concrete column according to claim 5, characterized in that: The second connecting rod (14) is provided with a spiral plate (18) in contact with the base (1).

7. The fully prefabricated steel-reinforced concrete column according to claim 6, characterized in that: The spiral plate (18) is provided with a plurality of casting holes (19).

8. The fully prefabricated steel-reinforced concrete column according to claim 5, characterized in that: The convex plate (15) is provided with a plurality of reinforcing plates (20) connected to the stirrups (3).

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