Reinforcing structure for concrete bent frame column

Abstract

The utility model relates to a reinforcing structure for a concrete bent frame column, which comprises first outer wrapping angle steel, and the outer convex surface of the first outer wrapping angle steel is propped against two corners respectively; the inner concave surface of the second outer wrapping angle steel is fixed on the side edge, far away from the outer wrapping brick wall, of the concrete bent frame column; wherein equivalent screws are arranged on the first wrapping angle steel and the concrete bent frame column in a penetrating mode, and the first wrapping angle steel is fixed to the two sides of the concrete bent frame column through the equivalent screws. The equivalent screw sequentially penetrates through the first outer wrapping angle steel located on the upper end face of the concrete bent frame column, the concrete bent frame column and the first outer wrapping angle steel located on the lower end face of the concrete bent frame column from top to bottom, and the first outer wrapping angle steel is fixed to the upper end face and the lower end face of the concrete bent frame column through the equivalent screw. The first wrapping angle steel can be fixed to the end faces of the two sides of the concrete bent frame column without dismantling the wrapping brick wall, so that the purpose of wrapping steel reinforcement is achieved, and the brick wall and connection anchoring of the brick wall and the concrete bent frame column are prevented from being damaged.

Description

Technical Field

[0001] The present application relates to the field of reinforcement technology, and in particular to a reinforcement structure for concrete bent columns. Background Art

[0002] In the process of renovation and reinforcement of old factory buildings, we often encounter a combination of concrete frame columns and external brick walls (brick walls are attached to the outer surface of the columns). When the bearing capacity of the columns is insufficient, they need to be reinforced. The simplest and most direct method is to wrap angle steel around the concrete columns. Before wrapping the angle steel, the external brick walls will be removed first, and the masonry walls will be restored after the steel wrapping construction is completed. However, this process will damage the brick walls and the connection and anchoring between the brick walls and the concrete frame columns. Utility Model Content

[0003] In order to solve or partially solve the problems existing in the related art, the present application provides a reinforcement structure for concrete bent columns.

[0004] To achieve the above objectives, this application is implemented through the following technical solutions:

[0005] A reinforcement structure for a concrete bent column, comprising an outer brick wall, one side of which is fixedly connected to the concrete bent column, the connection between the outer brick wall and the concrete bent column forms two 90° corners, and the reinforcement structure for the concrete bent column also includes:

[0006] A first external angle steel, whose outer convex surface abuts against the two 90° corners respectively;

[0007] The second outer angle steel has an inner concave surface fixed on the side edge of the concrete bent column away from the outer brick wall;

[0008] Among them, equal-order screws are inserted into the first external angle steel and the concrete frame column, and the first external angle steel is fixed to both sides of the concrete frame column through the equal-order screws.

[0009] Optionally, a first outer horizontal hoop plate is provided between the first outer angle steel and the second outer angle steel.

[0010] Optionally, a pair of the second outer angle steels is provided, and a second outer horizontal hoop plate is provided between the pair of second outer angle steels.

[0011] Optionally, a vertical hoop plate is provided between the first peripheral horizontal hoop plate and the second peripheral horizontal hoop plate.

[0012] Optionally, there is a gap between the equivalent screw rod and the concrete frame column, and concrete is poured into the gap.

[0013] Optionally, there is a gap between the end surface of one side of the first outer horizontal hoop plate and the second outer horizontal hoop plate close to the concrete frame column and the outer surface of the concrete frame column, and the gap is filled with structural injection glue.

[0014] Optionally, surfaces of the first outer angle steel, the second outer angle steel, the first outer horizontal hoop plate, the second outer horizontal hoop plate and the vertical hoop plate are coated with fire retardant coating.

[0015] The beneficial effects of the present application: the first external angle steel and the concrete frame column of the present application are penetrated by equal-generation screws, which pass through the first external angle steel located on the upper end face of the concrete frame column, the concrete frame column and the first external angle steel located on the lower end face of the concrete frame column from top to bottom in sequence, and the first external angle steel is fixed to the upper and lower end faces of the concrete frame column through the equal-generation screws. In this way, the first external angle steel can be fixed to the two side end faces of the concrete frame column without removing the external brick wall, so as to achieve the purpose of steel reinforcement, thereby avoiding damage to the brick wall and the connection and anchoring between the brick wall and the concrete frame column.

[0016] It should be understood that the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The above and other objects, features and advantages of the present application will become more apparent through a more detailed description of exemplary embodiments of the present application in conjunction with the accompanying drawings, wherein the same reference numerals generally represent the same components in the exemplary embodiments of the present application.

[0018] Figure 1 It is a structural schematic diagram of a reinforcement structure for a concrete bent column shown in an embodiment of the present application;

[0019] Figure 2 This is view 1-1 shown in an embodiment of the present application.

[0020] Figure numerals: 1 outer brick wall, 2 concrete frame column, 3 first outer angle steel, 4 second outer angle steel, 5 first generation screw rod, 6 first outer horizontal hoop plate, 7 second outer horizontal hoop plate, 8 vertical hoop plate, 9 gap. DETAILED DESCRIPTION

[0021] In the description of the present invention, it is to be understood that the terms “center”, “longitudinal”, “lateral”, “length”, “width”, “thickness”, “up”, “down”, “front”, “back”, “left”, “right”, “vertical”, “horizontal”, “top”, “bottom”, “inside”, “outside”, “clockwise”, “counterclockwise”, “axial”, “radial”, “circumferential”, etc., indicating orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention.

[0022] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In the description of the present invention, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0023] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral one; it can be a mechanical connection, an electrical connection, or communication with each other; it can be a direct connection, or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to the specific situation.

[0024] In the present invention, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, a first feature being "above", "above" or "above" a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being "below", "below" or "below" a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0025] In the present invention, the terms "one embodiment", "some embodiments", "examples", "specific examples" or "some examples" etc. mean that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine the different embodiments or examples described in this specification and the features of the different embodiments or examples, unless they are contradictory.

[0026] Although the embodiments of the present invention have been shown and described above, it is to be understood that the above embodiments are exemplary and are not to be construed as limitations of the present invention. A person skilled in the art may change, modify, replace and vary the above embodiments within the scope of the present invention.

[0027] The above description is only an optional embodiment of the present application and is not intended to limit the present application. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present application shall be included in the protection scope of the present application.

[0028] In order to make the purpose, technical solutions and beneficial effects of the present application clearer, the preferred embodiments of the present application will be described in detail below in conjunction with the accompanying drawings to facilitate understanding by technical personnel.

[0029] Embodiment 1:

[0030] See also Figure 1 and Figure 2 A reinforcement structure for a concrete bent column, comprising an outer brick wall 1, one side of which is fixedly connected to a concrete bent column 2, the connection between the outer brick wall 1 and the concrete bent column 2 forms two 90° corners, and the reinforcement structure for the concrete bent column also includes:

[0031] A first external angle steel 3, whose outer convex surface abuts against the two 90° corners respectively;

[0032] The second outer angle steel 4, whose inner concave surface is fixed on the side edge of the concrete bent column 2 away from the outer brick wall 1;

[0033] Among them, equal screws 5 are provided on the first external angle steel 3 and the concrete frame column 2 , and the first external angle steel 3 is fixed to both sides of the concrete frame column 2 through the equal screws 5 .

[0034] Specifically, the concrete frame column 2 is a rectangular column, and the side of the outer brick wall 1 is fixedly connected to one side of the axial direction of the concrete frame column 2 and is perpendicular to each other. The connection between the two forms a 90° angle. A pair of first outer angle steels 3 are provided, and their outer convex surfaces are respectively abutted against the two 90° corners. In the traditional technology, before the outer angle steel is outer-wrapped to the concrete frame column 2 (i.e., the first outer angle steel 3), the outer brick wall 1 will be removed first, and the outer brick wall 1 will be restored after the steel wrapping construction is completed. However, this process will destroy the brick wall and the connection and anchoring between the brick wall and the concrete frame column 2, and in the present application, the first outer angle steel 3 and the concrete frame column The frame column 2 is provided with an equal generation screw rod 5, which passes through the first external angle steel 3 located on the upper end face of the concrete frame column 2, the concrete frame column 2 and the first external angle steel 3 located on the lower end face of the concrete frame column 2 from top to bottom in sequence, and nuts are threadedly connected at both ends of the equal generation screw rod 5. By tightening the nuts, the first external angle steel 3 is fixed to the upper and lower end faces of the concrete frame column 2. In this way, the first external angle steel 3 can be fixed to the two side end faces of the concrete frame column 2 without removing the external brick wall 1, so as to achieve the purpose of steel reinforcement, thereby avoiding damage to the brick wall and the connection and anchoring between the brick wall and the concrete frame column 2;

[0035] The inner concave surface of the second outer angle steel 4 is fixed on the side edge of the concrete bent column 2 away from the outer brick wall 1, and is used to reinforce the two side edges of the concrete bent column 2 away from the outer brick wall 1;

[0036] In addition, during the construction process of the traditional steel reinforcement of concrete bent frame columns, the outer facade of the column needs to be built with construction scaffolding, the recovery process is slow, the construction quality cannot be guaranteed, and the construction progress is affected. The present application avoids the outer brick wall 1, and fixes the first outer angle steel 3 to both sides of the concrete bent frame column 2 by the equivalent screw 5, thereby avoiding the removal of the outer brick wall 1. At the same time, one limb of the outer angle steel close to one side of the wall is outward, which does not affect the calculation parameter index of the structure, greatly shortens the construction period, reduces the investment, meets the design verification requirements, and speeds up the construction progress while ensuring the construction quality.

[0037] At the same time, during the construction process of traditional concrete frame column steel reinforcement, factors such as the color difference between the old and new brick walls also affect the sensory effect of the facade. However, the present application does not require the demolition of the old outer brick wall 1 and the construction of a new outer brick wall 1, so it will not cause color difference problems and will not affect the sensory effect of the facade.

[0038] Embodiment 2:

[0039] See also Figure 1 and Figure 2 Based on the above embodiment, further and optionally, a first outer horizontal hoop plate 6 is provided between the first outer angle steel 3 and the second outer angle steel 4.

[0040] Specifically, one end of the first outer horizontal hoop plate 6 is welded to the upper end face of the first outer angle steel 3, and the other end is welded to one end of the second outer angle steel 4 to laterally constrain the upper and lower parts of the concrete frame column 2, thereby enhancing the bearing capacity of the column.

[0041] Further and optionally, a pair of the second outer angle steels 4 is provided, and a second outer horizontal hoop plate 7 is provided between the pair of second outer angle steels 4 .

[0042] Specifically, one end of the second outer horizontal hoop plate 7 is welded to the outer end face of the second outer angle steel 4 located at the upper end of the concrete frame column 2, and the other end is welded to the outer end face of the second outer angle steel 4 located at the lower end of the concrete frame column 2, so that the side of the concrete frame column 2 away from the outer brick wall 1 is constrained, thereby enhancing the bearing capacity of the column.

[0043] Further and optionally, a vertical hoop plate 8 is provided between the first peripheral horizontal hoop plate 6 and the second peripheral horizontal hoop plate 7 .

[0044] Specifically, one end of the vertical hoop plate 8 is welded to the outer end surface of the first outer horizontal hoop plate 6, and the other end is welded to the outer end surface of the second outer horizontal hoop plate 7, so that the concrete frame column 2 is constrained in the vertical direction, thereby enhancing the bearing capacity of the column.

[0045] Further and optionally, there is a gap between the equivalent screw rod 5 and the concrete frame column 2, and concrete is poured into the gap.

[0046] Specifically, a through hole is opened in the concrete frame column 2 to allow the equivalent screw 5 to pass through. The equivalent screw 5 is inserted in the through hole. The through hole should be opened away from the position of the main reinforcement and stirrups of the column to avoid damaging the brick wall and the connection and anchoring between the brick wall and the concrete frame column 2. There is a gap between the outer surface of the equivalent screw 5 and the inner wall of the through hole. The gap is filled tightly by pouring concrete to prevent water and oxygen from entering the concrete frame column 2 through the gap and causing corrosion damage to the equivalent screw 5.

[0047] Further and optionally, a gap 9 is provided between the end surface of one side of the first outer horizontal hoop plate 6 and the second outer horizontal hoop plate 7 close to the concrete frame column 2 and the outer surface of the concrete frame column 2, and the gap 9 is filled with structural injection glue.

[0048] Specifically, structural injection glue is a type of adhesive specifically used for strengthening and repairing building structures. It can fill the gaps in concrete structures, making the structure more compact and stable. The importance of this adhesive lies in its ability to improve the safety performance of buildings and extend their service life.

[0049] Further and optionally, the surfaces of the first outer angle steel 3, the second outer angle steel 4, the first outer horizontal hoop plate 6, the second outer horizontal hoop plate 7 and the vertical hoop plate 8 are coated with fire retardant coating.

[0050] Specifically, the above components are all made of steel structure. In order to make the steel structure overcome the shortcomings in fire prevention in practical applications, fire prevention treatment must be carried out. The purpose is to increase the fire resistance limit of the steel structure to the limit range specified in the design specifications. 15 minutes after the fire occurs, the temperature of the steel structure itself will rise rapidly due to the rise in the temperature of the ambient smoke. At this time, the strength and elastic modulus of the steel will decay by 45% to 60%, followed by a rapid decrease in the bearing capacity of the steel components, which will soon lead to insufficient bearing capacity of the steel structure and cause the collapse of the entire structure. In order to prevent the steel structure from rapidly heating up and deforming and collapsing in the fire, fire retardant coatings are applied on the surface of the above components to control the heating rate and temperature of the steel structure under the fire.

[0051] Finally, it should be noted that the above preferred embodiments are only used to illustrate the technical solution of the present application rather than to limit it. Although the present application has been described in detail through the above preferred embodiments, those skilled in the art should understand that various changes can be made in form and details without departing from the scope defined by the claims of the present application; the dimensions of the drawings are not related to the specific objects, and the dimensions of the objects can be changed arbitrarily.

Claims

1. A reinforcement structure for a concrete bent column, comprising an outer brick wall (1), one side of which is fixedly connected to a concrete bent column (2), the connection between the outer brick wall (1) and the concrete bent column (2) forming two 90° corners, characterized in that: The reinforcement structure for the concrete bent column also includes: A first external angle steel (3), the outer convex surface of which is respectively in contact with the two 90° corners; A second outer angle steel (4), the inner concave surface of which is fixed on the side edge of the concrete bent column (2) away from the outer brick wall (1); Wherein, equal-order screw rods (5) are provided on the first external angle steel (3) and the concrete frame column (2), and the first external angle steel (3) is fixed to both sides of the concrete frame column (2) through the equal-order screw rods (5).

2. The reinforcement structure for concrete bent columns according to claim 1, characterized in that: A first outer horizontal hoop plate (6) is provided between the first outer angle steel (3) and the second outer angle steel (4).

3. The reinforcement structure for concrete bent columns according to claim 1, characterized in that: A pair of the second outer angle steels (4) is provided, and a second outer horizontal hoop plate (7) is provided between the pair of second outer angle steels (4).

4. The reinforcement structure for concrete bent columns according to claim 2, characterized in that: A vertical hoop plate (8) is provided between the first peripheral horizontal hoop plate (6) and the second peripheral horizontal hoop plate (7).

5. The reinforcement structure for concrete bent columns according to claim 1, characterized in that: There is a gap between the equal generation screw rod (5) and the concrete bent frame column (2), and concrete is poured into the gap.

6. The reinforcement structure for concrete bent columns according to claim 2, characterized in that: There is a gap (9) between the end surface of one side of the first outer horizontal hoop plate (6) and the second outer horizontal hoop plate (7) close to the concrete frame column (2) and the outer surface of the concrete frame column (2), and the gap (9) is filled with structural injection glue.

7. The reinforcement structure for concrete bent columns according to claim 1, characterized in that: The surfaces of the first outer angle steel (3), the second outer angle steel (4), the first outer horizontal hoop plate (6), the second outer horizontal hoop plate (7) and the vertical hoop plate (8) are coated with fire retardant paint.

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