Repair structure suitable for concrete column

Abstract

The utility model discloses a repairing structure suitable for a concrete column. The repairing structure comprises the concrete column, the angle steel connecting piece is arranged on the outer side face of the concrete column, and a limiting hole is formed in the angle steel connecting piece; the steel columns are arranged on the angle steel connecting pieces and located in the limiting holes, and the steel columns and the concrete columns are consistent in length and distribution direction; and the concrete layer covers and wraps the outer sides of the concrete column, the angle steel connecting piece and the steel column. In the utility model, the steel column with the same length as the concrete column is fixed on the side surface of the concrete column through the angle steel connecting piece, and then the concrete layer is formed by pouring concrete to cover and wrap the concrete column, the angle steel connecting piece and the steel column, so that a new repairing structure is formed; the concrete column, the angle steel connecting piece and the steel column are fused into a new whole through the concrete layer, the connecting stability of the concrete column, the angle steel connecting piece and the steel column is improved, and the bearing performance and the shock resistance of the repaired concrete column are further improved.

Description

Technical Field

[0001] This utility model relates to the field of building structure technology, and in particular to a repair structure suitable for concrete columns. Background Technology

[0002] Steel-concrete composite columns have advantages such as high load-bearing capacity and good seismic performance, but they can still be damaged when exposed to fire or large-energy impacts. When severe damage occurs and replacement is not possible due to structural or environmental reasons, the concrete column must be repaired.

[0003] In existing technologies, when a concrete column is partially damaged, it is usually repaired by using connectors and pouring concrete at the damaged area. This repair method is suitable for concrete columns that still maintain a high degree of integrity after damage. However, when a concrete column is severely damaged and has multiple local breaks with poor overall integrity, if the existing local repair methods are used to repair the concrete column, the connection stability between the repaired concrete column and the main structure will be less than that of the original concrete column. In other words, the overall integrity of the repaired concrete column is poor, resulting in the overall load-bearing capacity and seismic resistance of the repaired concrete column being far inferior to that of the original concrete column, making the repaired concrete column susceptible to secondary damage.

[0004] Therefore, the existing technology still needs to be improved and enhanced. Utility Model Content

[0005] In view of the shortcomings of the prior art, the purpose of this utility model is to provide a repair structure suitable for concrete columns, which aims to solve the problem that the local repair method in the prior art is not suitable for concrete columns with multiple local damages. If the existing local repair method is used to repair the concrete column, the connection stability between the local structure and the main body of the repaired concrete column will be less than that of the original concrete column, which will make the repaired concrete column easy to be damaged again.

[0006] The technical solution adopted by this utility model to solve the technical problem is as follows:

[0007] In a first aspect, embodiments of this utility model provide a repair structure suitable for concrete columns, comprising:

[0008] Concrete column;

[0009] An angle steel connecting piece is provided on the outer side of the concrete column, and the angle steel connecting piece is provided with a limiting hole;

[0010] A steel column is provided on the angle steel connecting piece and located within the limiting hole. The steel column has the same length and the same distribution direction as the concrete column.

[0011] A concrete layer that covers and wraps around the concrete column, the angle steel connecting piece, and the outside of the steel column.

[0012] As a further improved technical solution, the angle steel connecting pieces are respectively provided on each outer side of the concrete column, and the steel column is respectively provided on each angle steel connecting piece.

[0013] As a further improved technical solution, multiple angle steel connecting pieces are provided on each outer side of the concrete column, and the angle steel connecting pieces located at the same horizontal height can be combined to form an angle steel connecting frame.

[0014] As a further improved technical solution, the angle steel connecting piece is provided with a plurality of limiting holes, the plurality of limiting holes are arranged in a row along the length direction of the angle steel connecting piece, and the spacing between each limiting hole is consistent.

[0015] As a further improved technical solution, the above-mentioned repair structure applicable to concrete columns also includes:

[0016] CFRP reinforcing bars; the angle steel connecting piece has a through hole, the concrete column has a connecting hole, the CFRP reinforcing bars pass through the through hole and the connecting hole and fix the angle steel connecting piece to the concrete column.

[0017] As a further improved technical solution, sealant is filled between the CFRP steel bar and the through hole and the connecting hole.

[0018] As a further improved technical solution, the two adjacent ends of each pair of angle steel connecting pieces are fixedly connected by bolts.

[0019] As a further improved technical solution, the steel column includes a solid steel column or a hollow steel column.

[0020] As a further improved technical solution, the angle steel connecting piece is in the shape of a long strip or an arc.

[0021] As a further improved technical solution, the angle steel connecting frame includes a rectangular frame, a square frame, a triangular frame, and a circular frame.

[0022] Compared with the prior art, the embodiments of this utility model have the following advantages:

[0023] This utility model embodiment provides a repair structure suitable for concrete columns, including: a concrete column; an angle steel connecting piece disposed on the outer side of the concrete column, and the angle steel connecting piece having a limiting hole; a steel column disposed on the angle steel connecting piece and located within the limiting hole, the steel column having the same length and distribution direction as the concrete column; and a concrete layer covering and wrapping the concrete column, the angle steel connecting piece, and the outer side of the steel column. In this invention, when multiple parts of a concrete column are damaged, a steel column of the same length as the concrete column is fixed to the side of the concrete column using angle steel connecting plates. Then, concrete is poured to form a concrete layer that covers and wraps the concrete column, angle steel connecting plates, and steel column, forming a new repair structure. This concrete layer integrates the concrete column, angle steel connecting plates, and steel column into a new whole. After the concrete is poured, multiple parts of the concrete column are repaired. This integrated concrete layer for repairing multiple parts is more stable than repairing each part separately. Furthermore, the integration with the steel column enhances the structural strength. The steel column is fixed to the concrete column via angle steel connecting plates, effectively improving the connection stability between the three components and further improving the load-bearing capacity and seismic resistance of the repaired concrete column. Attached Figure Description

[0024] Figure 1 This is a schematic diagram of the connection structure of the concrete column, angle steel connecting piece and steel column in this utility model;

[0025] Figure 2 This is a three-dimensional structural diagram of the concrete column in this utility model;

[0026] Figure 3 This is a three-dimensional structural diagram of the angle steel connecting frame in this utility model;

[0027] Figure 4 This is a schematic diagram of the connection structure of the concrete column, angle steel connecting piece and CFRP steel bar in this utility model;

[0028] Figure 5 A three-dimensional structural diagram of a repair structure suitable for concrete columns is provided for utility model purposes.

[0029] In the diagram: 1. Concrete column; 101. Connecting hole; 2. Angle steel connecting piece; 201. Limiting hole; 202. Through hole; 3. Steel column; 4. Concrete layer; 5. Angle steel connecting frame; 6. CFRP steel reinforcement. Detailed Implementation

[0030] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this utility model, and should not be construed as limiting this utility model.

[0031] Example:

[0032] like Figures 1-5 As shown. The repair structure applicable to concrete columns includes: a concrete column 1; an angle steel connecting piece 2, which is disposed on the outer side of the concrete column 1 and has a limiting hole 201; a steel column 3, which is disposed on the angle steel connecting piece 2 and located within the limiting hole 201, and the steel column 3 has the same length and distribution direction as the concrete column 1; and a concrete layer 4, which covers and wraps the outside of the concrete column 1, the angle steel connecting piece 2, and the steel column 3.

[0033] In this embodiment, the repair structure applicable to concrete columns includes a concrete column 1, an angle steel connecting piece 2, a steel column 3, and a concrete layer 4; wherein, the concrete column 1 includes a circular concrete column 1, a square concrete column 1, a triangular concrete column 1, or a prismatic concrete column, etc., the angle steel connecting piece 2 is provided with a limiting hole 201, the steel column 3 is disposed on the angle steel connecting piece 2 and located within the limiting hole 201, the steel column 3 is fixed through the limiting hole 201, and the steel column 3 has the same length and distribution direction as the concrete column 1. In a consistent manner, the bottom of the concrete column 1 rests on a concrete base, and the bottom of the steel column 3 also rests on a concrete base. After the angle steel connecting piece 2 and the steel column 3 are fixed respectively, concrete is poured through a pre-prepared mold, so that the poured concrete forms the concrete layer 4. The concrete layer 4 covers and wraps the outside of the concrete column 1, the angle steel connecting piece 2 and the steel column 3, and after the poured concrete solidifies, it fixes the concrete column 1, the angle steel connecting piece 2 and the steel column 3 into one unit, so as to improve the connection stability between the three.

[0034] In this embodiment, a steel column 3 of the same length as the concrete column 1 is fixed to the side of the concrete column 1 using angle steel connecting pieces 2. Then, concrete is poured to form a concrete layer 4, which covers and wraps the concrete column 1, angle steel connecting pieces 2, and steel column 3, forming a new repair structure. This concrete layer 4 integrates the concrete column 1, angle steel connecting pieces 2, and steel column 3 into a new whole. After the concrete in the concrete layer 4 is poured, multiple parts of the concrete column 1 are repaired. The integrated concrete layer for repairing multiple parts is more stable than repairing multiple parts separately. Furthermore, the integration with the steel column 3 can enhance the structural strength through the steel column 3. At the same time, the steel column 3 is relatively fixed to the concrete column 1 through the angle steel connecting pieces 2, thereby effectively improving the connection stability between the three and further improving the load-bearing capacity and seismic resistance of the repaired concrete column 1.

[0035] As a further embodiment, angle steel connecting pieces 2 are respectively provided on each outer surface of the concrete column 1, and steel columns 3 are respectively provided on each angle steel connecting piece 2. Specifically, the number of angle steel connecting pieces 2 can be set according to the shape of the concrete column 1 and the degree of repair required; for example, if the concrete column 1 is quadrilateral and there are four surfaces to be repaired, then at least four angle steel connecting pieces 2 need to be provided on the concrete column 1, that is, at least one angle steel connecting piece 2 is installed on each surface of the concrete column 1 to fix the steel columns 3 on the four surfaces of the concrete column 1 respectively; if the concrete column 1 is triangular and there are three surfaces to be repaired, then at least three angle steel connecting pieces 2 need to be provided on the concrete column 1, that is, at least one angle steel connecting piece 2 is installed on each surface of the concrete column 1 to fix the steel columns 3 on the three surfaces of the concrete column 1 respectively; if only one surface of the concrete column 1 needs to be repaired, then at least one angle steel connecting piece 2 is provided.

[0036] As a further improvement, multiple angle steel connecting pieces 2 are provided on each outer surface of the concrete column 1, and the angle steel connecting pieces 2 located at the same horizontal height can be combined to form an angle steel connecting frame 5. Specifically, at least two angle steel connecting pieces 2 are provided on each outer surface of the concrete column 1. When two angle steel connecting pieces 2 are provided on a certain outer surface of the concrete column 1, the two angle steel connecting pieces 2 are located at the top and bottom of that side, respectively, and are used to fix the top and bottom of the steel column 3 to enhance the stability of the steel column 3. When three angle steel connecting pieces 2 are provided on a certain outer surface of the concrete column 1, the three angle steel connecting pieces 2 are located at the top, middle and bottom of that side, respectively, and are used to fix the top, middle and bottom of the steel column 3 to further enhance the stability of the steel column 3.

[0037] In this embodiment, the angle steel connecting piece 2 is provided with a plurality of limiting holes 201, which are arranged in a row along the length direction of the angle steel connecting piece 2, and the spacing between each limiting hole 201 is consistent. Specifically, each angle steel connecting piece 2 is provided with a row of evenly spaced limiting holes 201, thereby allowing multiple steel columns 3 to be fixed simultaneously, further improving the stability of the repair structure.

[0038] As a further embodiment, the repair structure applicable to concrete columns also includes CFRP steel bars 6, namely carbon fiber reinforced composite steel bars. The angle steel connecting piece 2 is provided with a through hole 202, and the concrete column 1 is provided with a connecting hole 101. The CFRP steel bars 6 pass through the through hole 202 and the connecting hole 101 and fix the angle steel connecting piece 2 to the concrete column 1. The CFRP steel bars 6 are also wrapped inside the concrete layer 4.

[0039] As a further improvement, sealant is filled between the CFRP steel bar 6 and the through hole 202 and the connecting hole 101 to enhance the tightness of the connection between the CFRP steel bar 6 and the through hole 202 and the connecting hole 101, thereby improving the overall stability of the repair structure.

[0040] In this embodiment, the two adjacent ends of each pair of angle steel connecting pieces 2 are fixedly connected by bolts. Specifically, bolts are provided at each corner of the angle steel connecting frame 5, and the ends of the two angle steel connecting pieces 2 are fixedly connected by bolts, that is, the bolts are passed through the through holes 202 at the ends of the angle steel connecting pieces 2.

[0041] As a further option, the steel column 3 includes a solid steel column 3 or a hollow steel column 3. If a hollow steel column 3 is used, concrete also needs to be poured inside the hollow steel column 3 when pouring concrete. The hollow steel column 3 is more cost-effective than the solid steel column 3.

[0042] As a further improvement, the angle steel connecting piece 2 is in the shape of a long strip or an arc. When the concrete column 1 is polygonal, the angle steel connecting piece 2 is in the shape of a long strip, and when the concrete column 1 is cylindrical, the angle steel connecting piece 2 is in the shape of an arc.

[0043] In this embodiment, the angle steel connecting frame 5 includes a rectangular frame, a square frame, a triangular frame, and a circular frame.

[0044] In summary, this utility model embodiment provides a repair structure suitable for concrete columns, comprising: a concrete column 1; an angle steel connecting piece 2, which is disposed on the outer side of the concrete column 1 and has a limiting hole 201; a steel column 3, which is disposed on the angle steel connecting piece 2 and located within the limiting hole 201, the steel column 3 having the same length and distribution direction as the concrete column 1; and a concrete layer 4, which covers and wraps the outer side of the concrete column 1, the angle steel connecting piece 2, and the steel column 3. In this utility model, the steel column 3, which is of the same length as the concrete column 1, is fixed to the side of the concrete column 1 by the angle steel connecting piece 2, and then concrete is poured to form a concrete layer 4 that covers and wraps the concrete column 1, the angle steel connecting piece 2, and the steel column 3, forming a new repair structure. This concrete layer 4 integrates the concrete column 1, the angle steel connecting piece 2, and the steel column 3 into a new whole, improving the connection stability between the three and further improving the load-bearing capacity and seismic resistance of the repaired concrete column 1.

[0045] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0046] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this utility model, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0047] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0048] In this utility model, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0049] It should be noted that when an element is referred to as being "fixed to" or "set on" another element, it can be directly on the other element or there may be an intervening element. When an element is considered to be "connected to" another element, it can be directly connected to the other element or there may be an intervening element. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and similar expressions used herein are for illustrative purposes only and do not represent the only possible implementation.

[0050] Of course, the above description of the embodiments of this utility model is quite detailed, but it should not be construed as a limitation on the scope of protection of this utility model. This utility model may have other various implementations. Based on this implementation, other implementations obtained by those skilled in the art without any creative effort are all within the scope of protection of this utility model. The scope of protection of this utility model is subject to the appended claims.

Claims

1. A repair structure suitable for concrete columns, characterized in that, include: Concrete column; An angle steel connecting piece is provided on the outer side of the concrete column, and the angle steel connecting piece is provided with a limiting hole; A steel column is provided on the angle steel connecting piece and located within the limiting hole. The steel column has the same length and the same distribution direction as the concrete column. A concrete layer that covers and wraps around the concrete column, the angle steel connecting piece, and the outside of the steel column.

2. The repair structure for concrete columns according to claim 1, characterized in that, The concrete column is provided with angle steel connecting pieces on each outer side, and each angle steel connecting piece is provided with a steel column.

3. The repair structure for concrete columns according to claim 2, characterized in that, Multiple angle steel connecting pieces are provided on each outer side of the concrete column, and the angle steel connecting pieces located at the same horizontal height can be combined to form an angle steel connecting frame.

4. The repair structure suitable for a concrete column according to claim 1, wherein The angle steel connecting piece is provided with a plurality of limiting holes, which are arranged in a row along the length direction of the angle steel connecting piece, and the spacing between each limiting hole is consistent.

5. The repair structure suitable for a concrete column according to claim 1, wherein Also includes: CFRP reinforcing bars; the angle steel connecting piece has a through hole, the concrete column has a connecting hole, the CFRP reinforcing bars pass through the through hole and the connecting hole and fix the angle steel connecting piece to the concrete column.

6. The repair structure suitable for a concrete column according to claim 5, wherein The CFRP steel bar is filled with sealant between itself and the through hole and the connecting hole.

7. The repair structure for concrete columns according to claim 3, characterized in that, The two adjacent ends of each pair of angle steel connecting pieces are fixedly connected by bolts.

8. The repair structure for concrete columns according to claim 1, characterized in that, The steel columns include solid steel columns or hollow steel columns.

9. The repair structure suitable for a concrete column according to claim 1, wherein The angle steel connecting piece is long and narrow or arc-shaped.

10. The repair structure suitable for a concrete column according to claim 3, wherein The angle steel connecting frame includes rectangular frames, square frames, triangular frames, and circular frames.

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