Reinforcing structure for enlarging cross section of frame column

Abstract

The reinforcing structure comprises an original lower floor slab, an original upper floor slab, an original frame column, a plurality of existing frame column main reinforcements in the original frame column, external expansion reinforcements used for increasing the section and reinforcing main reinforcements used for vertical connection. The positions, corresponding to the positions where the original frame columns stretch out of the bottom face of the original lower floor slab and the top face of the original upper floor slab, of the original frame columns are connected with two external expansion ribs, and the two external expansion ribs stretch into a floor space formed by the original lower floor slab and the original upper floor slab and are vertically connected through the reinforcing main ribs. The frame column main reinforcements, the external expansion reinforcements and the reinforcing main reinforcements form a large-section reinforcing area on the periphery of the original frame column between the original lower floor slab and the original upper floor slab; according to the reinforcing structure, the reinforcing main reinforcements are integrally connected with the frame column main reinforcements in the frame column through the external expansion reinforcements, so that the reinforcing structure and the frame column can be combined into a whole while steel bar planting of an upper floor and a lower floor is omitted, better stress performance is achieved, and the reinforcing effect on the frame column is improved.

Description

Technical Field

[0001] The utility model relates to the field of building construction, and particularly refers to a reinforcement structure for increasing the cross-section of a frame column. Background Art

[0002] When constructing reinforced concrete beams and columns that have been built, in order to meet the higher design requirements of a certain floor, it is necessary to reinforce the columns on a single floor. The existing reinforcement methods mostly involve increasing the cross-section for reinforcement.

[0003] For the traditional reinforcement method of increasing the cross-section of a frame column, the method of implanting steel bars at the bottom plate of the reinforcement part on this floor and at the position of the beam and slab of the top plate and then binding stirrups is adopted, aiming to form a reinforcement layer around the existing frame column, and realizing the increase of the structural strength of the frame column on this floor by the supporting and protecting effects of the reinforcement layer. Actually, its force is only conducted through the solidified concrete, and the reinforcement effect on the frame column is not obvious, and the reinforcement effect is poor. Content of the Utility Model

[0004] The purpose of the utility model is to overcome the defects of the prior art and provide a reinforcement structure for increasing the cross-section of a frame column, so as to solve the problem that the reinforcement structure of the frame column in the prior art has a poor reinforcement effect on the frame column.

[0005] To achieve the above purpose, the utility model provides a reinforcement structure for increasing the cross-section of a frame column, which includes the original lower floor slab, the original upper floor slab, the original frame column, several existing frame column main steel bars inside the original frame column, external expansion steel bars for increasing the cross-section, and reinforcement main steel bars for vertical connection;

[0006] Corresponding to the positions where the original frame column extends out of the bottom surface of the original lower floor slab and the top surface of the original upper floor slab, two external expansion steel bars are connected to any of the frame column main steel bars. Both of the two external expansion steel bars extend into the floor space formed by the original lower floor slab and the original upper floor slab, and are vertically connected through the reinforcement main steel bars;

[0007] The frame column main steel bars, the external expansion steel bars and the reinforcement main steel bars form a large cross-section reinforcement area around the original frame column between the original lower floor slab and the original upper floor slab, and the large cross-section reinforcement area is filled with concrete.

[0008] By adopting this technical solution, the reinforcement main steel bars for reinforcement are connected to the frame column main steel bars inside the existing original frame column through the external expansion steel bars across the original lower floor slab and the original upper floor slab, so that the reinforcement main steel bars and the frame column main steel bars form an integral structure penetrating the original lower floor slab and the original upper floor slab. After the large cross-section reinforcement area is filled with concrete and solidified, the original lower floor slab, the original upper floor slab and the original frame column are consolidated into one body. The formed reinforcement layer can, while ensuring its own strength, completely transfer the acting force to the original frame column, cooperate to achieve better mechanical properties, and further increase the reinforcement effect of the original frame column.

[0009] Further, roughening treatment is carried out on the periphery of the original frame column between the original lower floor slab and the original upper floor slab.

[0010] By adopting this technical solution, the roughness of the surface of the original frame column is increased. After the concrete is filled and consolidated in the large cross-section reinforcement area, the stability between the formed reinforcement layer and the original frame column can be increased.

[0011] Further, chiseling treatment is carried out at the positions where the original frame column corresponds to the connection positions with the original lower floor slab and the original upper floor slab.

[0012] By adopting this technical solution, the main frame column reinforcement at the positions where the original frame column corresponds to the original lower floor slab and the original upper floor slab is exposed, which is convenient for the connection of the outward-expanded reinforcement and the reinforcement main reinforcement.

[0013] Further, the outward-expanded reinforcement is formed by connecting the parallel steel bars with height differences at the head and tail through inclined connecting bars.

[0014] By adopting this technical solution, it is ensured that the outward-expanded reinforcement can increase the cross-section of the reinforcement structure and at the same time has the conduction effect of vertical and horizontal forces, ensuring that the reinforcement main reinforcement and the frame column main reinforcement can cooperate in force and play better mechanical properties.

[0015] Further, it also includes hoop stirrups. The hoop stirrups are evenly arranged in the height direction on the common periphery of several reinforcement main reinforcements, and the hoop stirrups and the reinforcement main reinforcements are tied by steel wires.

[0016] By adopting this technical solution, the hoop stirrups can connect several reinforcement main reinforcements into one body, further increasing the overall structural strength.

[0017] Further, the concrete in the large cross-section reinforcement area is consolidated with the original lower floor slab and the original upper floor slab into one body.

[0018] By adopting this technical solution: the connection between the reinforcement layer formed by consolidation and the original lower floor slab and the original upper floor slab is increased, ensuring that better mechanical properties can be exerted.

[0019] Compared with the prior art, the present utility model has the following beneficial effects:

[0020] The reinforcement main reinforcement inside the reinforcement structure is integrally connected with the frame column main reinforcement inside the existing frame column through the outward-expanded reinforcement. While eliminating the need for implanting steel bars on the upper and lower floor slabs, the reinforcement structure can be combined with the frame column into one body, having better mechanical properties and increasing the reinforcement effect on the frame column. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a schematic diagram of the overall structure of a reinforcement structure for increasing the cross-section of a frame column in the present utility model;

[0022] Figure 2 This is a schematic diagram of the external expansion reinforcement structure for increasing the cross-section of a frame column in the present utility model.

[0023] Explanation of reference numerals: 1, original lower floor slab; 2, original upper floor slab; 3, original frame column; 4, main reinforcement bars of the frame column; 5, external expansion reinforcement bars; 6, main reinforcement bars for reinforcement; 7, hoop stirrups; 8, large cross-section reinforcement area. Specific implementation manners

[0024] The present utility model will be further described below in conjunction with the accompanying drawings and specific embodiments.

[0025] Please refer to the attached Figure 1-2 , the present utility model provides a reinforcement structure for increasing the cross-section of a frame column, including an original lower floor slab 1, an original upper floor slab 2, an original frame column 3, several existing main reinforcement bars 4 of the original frame column 3 inside the original frame column 3, external expansion reinforcement bars 5 for increasing the cross-section, and main reinforcement bars 6 for vertical connection; at positions corresponding to the bottom surface of the original lower floor slab 1 and the top surface of the original upper floor slab 2 where the original frame column 3 extends, two external expansion reinforcement bars 5 are connected to any main reinforcement bar 4 of the frame column. Both external expansion reinforcement bars 5 extend into the floor space formed by the original lower floor slab 1 and the original upper floor slab 2, and are vertically connected through the main reinforcement bars 6 for reinforcement; the main reinforcement bars 4 of the frame column, the external expansion reinforcement bars 5, and the main reinforcement bars 6 for reinforcement form a large cross-section reinforcement area 8 around the original frame column 3 between the original lower floor slab 1 and the original upper floor slab 2. The large cross-section reinforcement area 8 is filled with concrete; the main reinforcement bars 6 for reinforcement are connected to the main reinforcement bars 4 of the frame column inside the existing original frame column 3 through the external expansion reinforcement bars 5 across the original lower floor slab 1 and the original upper floor slab 2, so that the main reinforcement bars 6 for reinforcement and the main reinforcement bars 4 of the frame column form an integral structure penetrating the original lower floor slab 1 and the original upper floor slab 2. After the large cross-section reinforcement area 8 is filled with concrete and consolidated, the original lower floor slab 1, the original upper floor slab 2, and the original frame column 3 are consolidated into one body. The formed reinforcement layer can, while ensuring its own strength, completely transfer the acting force to the original frame column 3, cooperate to achieve better mechanical properties, and thus increase the reinforcement effect of the original frame column 3.

[0026] Roughening treatment is carried out on the periphery of the original frame column 3 between the original lower floor slab 1 and the original upper floor slab 2; increasing the roughness of the surface of the original frame column 3 can increase the stability between the formed reinforcement layer and the original frame column 3 after the large cross-section reinforcement area 8 is filled with concrete and consolidated.

[0027] Chiseling treatment is carried out on the original frame column 3 at the positions corresponding to its connection with the original lower floor slab 1 and the original upper floor slab 2; the main reinforcement bars 4 of the frame column at the positions of the original frame column 3 corresponding to the original lower floor slab 1 and the original upper floor slab 2 are exposed, facilitating the connection of the external expansion reinforcement bars 5 and the main reinforcement bars 6 for reinforcement.

[0028] The externally extended reinforcement 5 is formed by connecting the steel bars arranged in parallel with height differences at the head and tail through inclined connecting bars; it ensures that the externally extended reinforcement 5 can increase the cross-section of the reinforcement structure and simultaneously has the conduction effect of vertical and horizontal forces, ensuring that the reinforcement main bars 6 and the main bars 4 of the frame column can cooperate in force and exert better mechanical properties.

[0029] The ring stirrups 7 are evenly arranged in the height direction around the common periphery of several reinforcement main bars 6, and the ring stirrups 7 and the reinforcement main bars 6 are tied with steel wires; the ring stirrups 7 can connect several reinforcement main bars 6 into one body, further increasing the overall structural strength.

[0030] The concrete in the large cross-section reinforcement area 8 is consolidated into one body with the original lower floor slab 1 and the original upper floor slab 2; increasing the connection between the formed reinforcement layer and the original lower floor slab 1 and the original upper floor slab 2 ensures that better mechanical properties can be exerted.

[0031] The above has described the present utility model in detail in conjunction with the embodiments of the drawings. Those of ordinary skill in the art can make various variations to the present utility model according to the above description. Therefore, some details in the embodiments should not constitute a limitation to the present utility model, and the protection scope of the present utility model will be defined by the scope defined in the appended claims.

Claims

1. A reinforcement structure of a frame column with an enlarged cross section, characterized in that: include: The original lower floor slab, the original upper floor slab, the original frame columns, several existing frame column main bars inside the original frame columns, the external expansion bars used to increase the cross-section, and the reinforced main bars used for vertical connection; Corresponding to the position where the original frame column extends out of the bottom surface of the original lower floor slab and the top surface of the original upper floor slab, two external expansion bars are connected to the main bars of any of the frame columns, and the two external expansion bars extend into the floor space formed by the original lower floor slab and the original upper floor slab, and are vertically connected through the reinforced main bars; The main reinforcement, external expansion reinforcement and reinforcement main reinforcement of the frame column form a large-section reinforcement area on the periphery of the original frame column between the original lower floor slab and the original upper floor slab, and the large-section reinforcement area is filled with concrete.

2. A reinforcement structure for a frame column with an enlarged cross section according to claim 1, characterized in that: The outer periphery of the original frame column between the original lower floor slab and the original upper floor slab is roughened.

3. A reinforcement structure for a frame column with an enlarged cross section according to claim 2, characterized in that: The original frame columns are chiseled out at the connection positions between the original lower floor slab and the original upper floor slab.

4. The reinforcement structure of a frame column with an enlarged cross section according to claim 1, characterized in that: The external expansion reinforcement is formed by connecting parallel steel bars with height differences end to end through inclined connecting bars.

5. The reinforcement structure of a frame column with an enlarged cross section according to claim 1, characterized in that: It also includes hoop reinforcements, which are evenly distributed in the common peripheral height direction of the plurality of reinforcing main bars, and the hoop reinforcements are tied to the reinforcing main bars by steel wire ropes.

6. The reinforcement structure of a frame column with an enlarged cross section according to claim 1, characterized in that: The concrete in the large-section reinforcement area is consolidated into one with the original lower floor slab and the original upper floor slab.

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