Improved building cylinder strengthening structure based on steel bar frame structure

Abstract

The utility model discloses an improved building column strengthening structure based on a steel bar frame structure, which comprises a center piece arranged in an outer template assembly, a first pouring cavity formed in the center piece, and a second pouring cavity formed between the center piece and the outer template assembly, a steel bar frame is jointly arranged between the first pouring cavity and the second pouring cavity, the first pouring cavity and the second pouring cavity are connected through the steel bar frame, concrete is jointly poured in the first pouring cavity and the second pouring cavity, and the steel bar frame is included to form a building column body; according to the building column body, connection between the center piece and the concrete is enhanced, so that the structural performance is improved, and meanwhile, the building column body avoids the influence of heat on the center piece, so that the fireproof performance is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of building structure, concretely is a kind of building column body reinforced structure based on steel reinforcement structure improvement. BACKGROUND

[0002] Traditional reinforced concrete structure is difficult to realize the functional diversification of high-rise building under the conditions of large load, large span and other conditions due to poor seismic performance and other shortcomings, and cannot meet the requirements of land saving, energy saving and other important indicators of building industry development direction, and has not adapted to the needs of high-rise building development. The steel pipe concrete structure is formed by filling concrete in the steel pipe, and the steel pipe and the internal concrete can jointly bear external load. By combining steel pipe and concrete, the shortcomings of the two materials can be made up, and the advantages of both can be fully utilized, so the steel pipe concrete structure has become a main structure form of high-rise building.

[0003] The traditional steel pipe concrete structure is directly filled with concrete into the inside of the steel pipe. After the concrete solidifies in the steel pipe, its volume will shrink, causing the solidified concrete to separate from the inner surface of the steel pipe, reducing the structural performance of the steel pipe concrete. At the same time, the exposed steel pipe has a problem of fire resistance. Once a fire occurs, the exposed steel pipe will deform under the influence of heat, which will directly affect the reliability of the steel pipe concrete structure, and even endanger the entire building. Especially the steel pipe concrete pillar which plays a supporting role, as it plays a supporting role in the entire building structure, its fire resistance requirement is higher. SUMMARY

[0004] In view of the deficiencies in the prior art, the purpose of the utility model is to improve a building column body reinforced structure based on steel reinforcement structure improvement, to strengthen the connection between the center piece and the concrete and improve the structural performance. At the same time, the building column body avoids the influence of heat on the center piece and improves the fire resistance.

[0005] To achieve the above purpose, the utility model provides the following technical scheme: a building column body reinforced structure based on steel reinforcement structure improvement, comprising a center piece arranged inside an outer formwork assembly, a first pouring cavity is formed inside the center piece, a second pouring cavity is formed between the center piece and the outer formwork assembly, a steel reinforcement frame is arranged between the first pouring cavity and the second pouring cavity, and the first pouring cavity and the second pouring cavity are connected by the steel reinforcement frame, and the first pouring cavity and the second pouring cavity are jointly poured with concrete, and the steel reinforcement frame is wrapped to form a building column body.

[0006] Further, the center piece is a plurality of first arc-shaped plates and second arc-shaped plates, and the second arc-shaped plates abut between the peripheries of adjacent first arc-shaped plates, the second arc-shaped plates and the first arc-shaped plates are connected to each other to adjust the size of the first pouring cavity, and are fixed by a limiting piece, a plurality of through holes are arranged on the first arc-shaped plate along the length direction of the first arc-shaped plate, and a connecting piece is arranged in each through hole, and the connecting piece is used for connecting the vertical bars of the reinforcing frame.

[0007] Further, the reinforcing frame comprises a plurality of first vertical bars arranged in the first pouring cavity and a plurality of second vertical bars arranged in the second pouring cavity, and the corresponding first vertical bars and second vertical bars are connected by the connecting pieces.

[0008] Further, the connecting piece is a through rod, the through rod penetrates through both sides of the through hole and is provided with threaded segments on both sides, nuts are threadedly connected to the threaded segments, the position of the first arc-shaped plate is limited by the nuts, and the through rod is detachably connected with a clamp at both ends.

[0009] Further, the reinforcing frame further comprises a plurality of first stirrups and second stirrups, the plurality of first stirrups are uniformly distributed along the length of the first vertical bars and are enclosed inside the first vertical bars by binding or welding, and the plurality of second stirrups are uniformly distributed along the length of the second vertical bars and are enclosed outside the second vertical bars by binding or welding.

[0010] Further, the outer wall of the first arc-shaped plate is provided with a plurality of grooves, and a threaded hole is arranged in each groove, the inner wall of the second arc-shaped plate is provided with a protrusion, and a connecting rod is arranged on the protrusion, the position of the first arc-shaped plate and the second arc-shaped plate is fixed by the connection of the connecting rod and the threaded hole, and the connecting rod and the threaded hole jointly constitute a limiting piece.

[0011] Further, the first arc-shaped plate and the second arc-shaped plate are both steel plates.

[0012] Beneficial effects:

[0013] 1. The application improves the structure of the reinforcing frame to enhance the connection between the steel pipe and the concrete, effectively prevents the separation of the steel pipe and the concrete caused by the shrinkage of the concrete in the steel pipe, ensures the structural performance of the steel pipe concrete composite column, increases the stress section area of the composite column through the stirrups and reinforcing bars in the reinforcing frame, and effectively compensates for the loss of structural performance caused by the opening of the steel pipe.

[0014] 2. In the prior art, the center steel pipe in the composite column is customized and cannot be adapted to the overall diameter of the composite column, so the application adjusts the diameter of the center steel pipe through the combination of the first arc-shaped plate and the second arc-shaped plate to adapt to the composite column, without the need for customization to increase the cost.

[0015] 3、The application is provided with a concrete layer outside the steel pipe, and the concrete layer and the concrete layer inside the steel pipe are connected through the reinforcing frame, avoiding the deformation of the naked steel pipe under the influence of heat when a fire occurs in the prior art, which will directly affect the reliability of the steel pipe concrete structure. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 is a top view of a circular building column;

[0017] Figure 2 is a top view of a rectangular building column;

[0018] Figure 3 is a partial schematic view of the reinforcing frame and the center piece with the reinforcing bars;

[0019] Figure 4 is a schematic view of the connection of the first arc-shaped plate and the second arc-shaped plate;

[0020] Figure 5 is a top view of the reinforcing frame and the center piece with the stirrups;

[0021] Figure 6 is a schematic view of the connection of the first arc-shaped plate and the second arc-shaped plate; Figure 5 is a schematic view of the connection of the first arc-shaped plate and the second arc-shaped plate.

[0022] Reference signs: 1, outer formwork assembly; 2, center piece; 21, first arc-shaped plate; 22, second arc-shaped plate; 3, first pouring cavity; 4, second pouring cavity; 5, reinforcing frame; 51, first vertical bar; 52, second vertical bar; 6, through hole; 7, connecting piece; 71, through rod; 72, threaded section; 73, nut; 74, clamp; 8, screw rod; 9, first reinforcing bar; 10, second reinforcing bar; 11, first stirrup; 12, second stirrup; 13, groove; 14, limiting piece; 15, connecting rod. DETAILED DESCRIPTION

[0023] To further illustrate the technical means and effects adopted by the application to achieve the predetermined purposes, the specific embodiments, structures, features and effects according to the application are described in detail below in combination with the drawings and preferred embodiments.

[0024] Referring to the drawings, the application is described in detail as follows. Figures 1-6As shown, this utility model provides a reinforced structure for building columns based on an improved steel reinforcement frame structure. It includes a central member 2 inside an outer formwork assembly 1, forming a first pouring cavity 3. A second pouring cavity 4 is formed between the central member 2 and the outer formwork assembly 1. The outer formwork assembly 1 is rectangular or circular (outer formwork assembly 1 is prior art and will not be described in detail here). A steel reinforcement frame 5 is provided between the first pouring cavity 3 and the second pouring cavity 4, connecting them. Concrete is poured into both the first pouring cavity 3 and the second pouring cavity 4, encasing the steel reinforcement frame 5 to form a building column. This building column is a composite column. Compared with traditional columns, this composite column has enhanced structural performance, increasing its mechanical properties such as load-bearing capacity. It also avoids the structural damage caused by the heat deformation of the steel pipes in traditional steel pipe columns during a fire, which could affect the safety of the entire building.

[0025] Specifically, such as Figures 1-4 As shown, the central component 2 consists of multiple first arc-shaped plates 21 and second arc-shaped plates 22, with the second arc-shaped plates 22 abutting against the periphery between adjacent first arc-shaped plates 21. The second arc-shaped plates 22 and the first arc-shaped plates 21 are interconnected to adjust the size of the first casting cavity 3 and are fixed by a limiting component 14. The first arc-shaped plates 21 and 22 are made of steel plates. The outer wall of the first arc-shaped plate 21 has multiple grooves 13, each with a threaded hole. The second arc-shaped plate 22 has a protrusion inside, with a connecting rod 15 on the protrusion. The connection between the connecting rod 15 and the threaded hole fixes the position of the first arc-shaped plates 21 and 22, thereby fixing the first casting cavity 3. The limiting component 14 consists of the connecting rod 15 and the threaded hole. This application avoids the use of customized central steel pipes, which can reduce costs and improve the practicality of the central component 2 in adapting to combined columns of different diameters.

[0026] like Figure 2As shown, a plurality of through holes 6 are arranged on the first arc-shaped plate 21 along the length direction of the first arc-shaped plate 21, and the plurality of through holes 6 are each provided with a connecting piece 7 for connecting the vertical bars of the reinforcing frame 5, the reinforcing frame 5 includes a plurality of first vertical bars 51 arranged in the first pouring cavity 3 and a plurality of second vertical bars 52 arranged in the second pouring cavity 4, the number of the first vertical bars 51, the second vertical bars 52 and the second arc-shaped plate 22 is the same, and five is taken as an example in the drawings. The corresponding first vertical bars 51 and second vertical bars 52 are connected through the connecting piece 7, the connecting piece 7 is a through rod 71, the through rod 71 penetrates through both sides of the through hole 6, and the through rod 71 is provided with a threaded section 72, the threaded section 72 is threadedly connected with a nut 73, the first arc-shaped plate 21 is limited on the through rod 71 through the nut 73, the position of the first arc-shaped plate 21 is fixed, and then the second arc-shaped plate 22 is connected with the first arc-shaped plate 21 through the limiting piece 14 to determine the position and size of the first pouring cavity 3. The both ends of the through rod 71 are detachably connected with a clamp 74. Figure 5 As shown, the first kind is an arc-shaped opening, which is used to fix and limit the position of the vertical bar through a plurality of first stirrups 11 and second stirrups 12, the plurality of first stirrups 11 are distributed along the length of the first vertical bar 51 and are fixed with the first vertical bar 51 by binding or welding, the second stirrup 12 is also fixed with the first vertical bar 51 by binding or welding, and the connecting piece 7, the first vertical bar 51 and the second vertical bar 52 are constrained and fixed through the second stirrup 12 and the first stirrup 11.

[0027] As shown, Figure 1 The other kind of clamp 74 is U-shaped, and the U-shaped opening is transversely penetrated by a screw rod 8, and the both sides of the screw rod 8 are connected with nuts 73. After the first vertical bar 51 and the second vertical bar 52 are constrained through the clamp 74, the first reinforcing bar 9 and the second reinforcing bar 10 are used for reinforcing connection, the first reinforcing bar 9 is used for connecting adjacent first vertical bars 51, the second reinforcing bar 10 is used for connecting adjacent second vertical bars 52, and the constraint is further strengthened. The reinforcing bars and the vertical bars are welded, and the stress performance of the column is improved through the arrangement of the reinforcing bars and the stirrups, and the connection between the first pouring cavity 3 and the second pouring cavity 4 is strengthened.

[0028] The above is only a preferred embodiment of the present application, and does not limit the present application in any form. Although the present application has been disclosed as above with a preferred embodiment, it is not intended to limit the present application. Any person skilled in the art can make some changes or modifications to the above disclosed technical content to obtain equivalent embodiments with equivalent changes, without departing from the technical solution of the present application. Any modification, equivalent change and modification of the above embodiments, which does not depart from the technical solution of the present application, is still within the scope of the technical solution of the present application.

Claims

1. A reinforced structure for building columns based on an improved steel reinforcement frame, characterized in that: The utility model provides a kind of building column pouring device, including the center piece (2) inside the outer mould assembly (1), the first pouring cavity (3) is formed inside the center piece (2), the second pouring cavity (4) is formed between the center piece (2) and outer mould assembly (1), the first pouring cavity (3) and the second pouring cavity (4) are jointly provided with reinforcing cage (5) and are connected by reinforcing cage (5), and the first pouring cavity (3) and the second pouring cavity (4) are jointly poured with concrete and are wrapped to form building column.

2. The building column strengthening construction based on the steel bar framework construction improvement according to claim 1, characterized by: The center piece (2) is a plurality of first arc-shaped plates (21) and second arc-shaped plates (22), and the second arc-shaped plates (22) abut against the periphery between adjacent first arc-shaped plates (21). The second arc-shaped plates (22) and the first arc-shaped plates (21) are connected to each other to adjust the size of the first pouring cavity (3) and are fixed by a limiting piece (14). The first arc-shaped plates (21) are provided with a plurality of through holes (6) along the length direction of the first arc-shaped plates (21). The plurality of through holes (6) are each provided with a connecting piece (7) penetrating through. The connecting piece (7) is used to connect the vertical bars of the reinforcing cage (5).

3. The building column strengthening construction based on the steel bar framework according to claim 2, characterized in that: The reinforcing cage (5) includes a plurality of first vertical bars (51) arranged in the first pouring cavity (3) and a plurality of second vertical bars (52) arranged in the second pouring cavity (4). Corresponding first vertical bars (51) and second vertical bars (52) are connected by the connecting piece (7).

4. The building column strengthening construction based on the steel bar framework according to claim 3, characterized in that: The connecting piece (7) is a penetrating rod (71) penetrating through both sides of the through hole (6). The penetrating rod (71) is provided with a threaded section (72). The threaded section (72) is threadedly connected with a nut (73). The nut (73) limits the position of the first arc-shaped plate (21). The both ends of the penetrating rod (71) are detachably connected with a clamp (74).

5. The building column strengthening construction based on the steel bar framework improved according to claim 4, characterized in that: The clamp (74) is U-shaped. A screw rod (8) transversely penetrates through the opening of the U-shaped clamp (74). The both ends of the screw rod (8) are connected with the nut (73).

6. The building column strengthening construction based on the steel bar framework improved according to claim 5, characterized in that: The reinforcing cage (5) further includes a first reinforcing bar (9) connecting adjacent first vertical bars (51) and a second reinforcing bar (10) connecting adjacent second vertical bars (52). The first reinforcing bar (9) and the second reinforcing bar (10) are uniformly distributed along the first vertical bars (51) and the second vertical bars (52).

7. The building column strengthening construction based on the steel bar framework improved according to claim 4, characterized in that: The reinforcing cage (5) further includes a plurality of first stirrups (11) and second stirrups (12). The plurality of first stirrups (11) are uniformly distributed along the length of the first vertical bars (51) and are enclosed in the first vertical bars (51) by binding or welding. The second stirrups (12) are uniformly distributed along the length of the second vertical bars (52) and are enclosed outside the second vertical bars (52) by binding or welding.

8. The building column strengthening construction based on the steel bar framework improved according to claim 6 or 7, characterized in that: The outer wall of the first arc-shaped plate (21) is provided with a plurality of grooves (13). The grooves (13) are each provided with a threaded hole. The inner wall of the second arc-shaped plate (22) is provided with a protrusion. The protrusion is provided with a connecting rod (15). The position of the first arc-shaped plate (21) and the second arc-shaped plate (22) is fixed by the connection between the connecting rod (15) and the threaded hole. The connecting rod (15) and the threaded hole jointly constitute the limiting piece (14).

9. The building column strengthening construction based on the steel bar framework improved according to claim 8, characterized in that: The first arc-shaped plate (21) and the second arc-shaped plate (22) are both steel plates.

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