A connecting structure of a new steel corbel of an existing concrete column

Abstract

The application relates to a connecting structure of a new steel corbel of an existing concrete column, which comprises a column of anchor bolts which are planted in the middle of the structure column in the vertical direction at intervals, a group of anchor plates which are installed on the surface of the structure column in connection with the anchor bolts, connecting angle steels which are clamped on the edges of the structure column, a corbel panel which is installed on the anchor plate and a corbel stiffening plate, one side of the connecting angle steel is connected and fixed with the anchor plate, the other side is connected with the adjacent connecting angle steel based on the connecting flat steel, and a surrounding hoop structure is formed on the structure column. The application provides a connecting structure of a new steel corbel of an existing concrete column, adopts the combined design of anchor bolts and outer wrapping connecting angle steels, solves the problem of insufficient edge distance and center distance of multiple rows of anchor bolts, and reduces the influence of too many implanted anchor bolts on the column. The outer wrapping connecting angle steel is welded to replace part of the anchor bolts, plays a surrounding hoop role on the existing concrete column, prevents the concrete from cracking, reduces the difficulty of wet work of punching, and speeds up the construction progress.

Description

Technical Field

[0001] This application relates to the field of building renovation and reinforcement technology, and in particular to a connection structure for adding steel brackets to existing concrete columns. Background Technology

[0002] Old factory buildings, due to their long service life, suffer from structural aging and damage, or their original structures no longer meet current standards and specifications, making them unsuitable for the evolving functional needs of modern production. Therefore, they require renovation and reinforcement to eliminate safety hazards and meet new requirements. During the renovation and reinforcement of old factory buildings, corbels are often added to existing concrete columns as new load-bearing supports. This is because corbels can efficiently transfer concentrated loads (such as crane beams and mezzanine beam loads), avoiding excessive damage to the already aged and damaged old concrete columns. They can also be specifically adapted to the specific functional requirements after the renovation, providing a reliable force transmission path for new components and ensuring the safe transfer of new loads to the old structure.

[0003] The current conventional method involves inserting multiple rows of anchor bolts into concrete columns to fix anchor plates, and then welding steel brackets onto the anchor plates. However, due to the age of the existing concrete columns, the concrete strength is generally low, which increases the damage during the anchor bolt insertion or rebar installation process and easily causes the existing concrete columns to crack. More importantly, due to cross-sectional limitations, some columns cannot meet the structural requirements for the edge distance and center distance of the anchor bolts, making it impossible to carry out the renovation project. Utility Model Content

[0004] To address or partially address the problems existing in related technologies, this application provides a connection structure for adding steel corbels to existing concrete columns. It adopts a combination design of anchor bolts and external angle steel, and uses welded external angle steel to replace some anchor bolts to reduce the impact of too many anchor bolts on the column.

[0005] The first aspect of this application provides a connection structure for adding steel corbels to existing concrete columns, including: a row of anchor bolts inserted vertically at intervals in the middle of the structural column; a set of anchor plates installed opposite to the anchor bolts on the surface of the structural column; connecting angle steels snapped onto each edge of the structural column; corbel panels and corbel stiffening plates installed on the anchor plates; one side of the connecting angle steel is connected and fixed to the anchor plate, and the other side is connected to the adjacent connecting angle steel based on the connecting flat steel to form a hoop structure for the structural column.

[0006] The anchor bolts penetrate the front and rear sides of the structural column, and the anchor plates include a front anchor plate installed on the front side and a rear anchor plate installed on the rear side of the structural column.

[0007] The connecting angle steel is set on the four edges of the corresponding structural column, one side is welded to the anchor plate, and the other side is stuck in the structural column and welded to the adjacent connecting angle steel based on the connecting flat steel.

[0008] The technical solution provided in this application may include the following beneficial effects:

[0009] This application provides a connection structure for adding steel brackets to existing concrete columns. It employs a combination design of anchor bolts and external connecting angle steel, solving the problems of insufficient edge and center distances for multiple rows of anchor bolts, while also reducing the impact of too many anchor bolts on the column. The use of welded external connecting angle steel to replace some anchor bolts acts as a confinement around the existing concrete column, preventing concrete cracking, reducing the difficulty of wet drilling operations, and accelerating the construction progress.

[0010] It should be understood that the above general description and the following detailed description are exemplary and explanatory only, and do not limit this application. Attached Figure Description

[0011] The above and other objects, features and advantages of this application will become more apparent from the more detailed description of exemplary embodiments thereof in conjunction with the accompanying drawings, wherein the same reference numerals generally represent the same components in the exemplary embodiments thereof.

[0012] Figure 1 This is a schematic diagram of the connection structure of a newly added steel bracket to an existing concrete column, as shown in the embodiments of this application.

[0013] Figure 2 This is a cross-sectional structural schematic diagram of the connection structure of the newly added steel bracket of the existing concrete column shown in the embodiments of this application;

[0014] Figure 3 This is a side view of the connection structure of the newly added steel bracket to an existing concrete column, as shown in the embodiments of this application.

[0015] Figure label:

[0016] In the diagram, 1—structural column, 2—anchor bolt, 3—anchor plate, 4—bracket panel, 5—bracket stiffening plate, 6—connecting flat steel, and 7—connecting angle steel. Detailed Implementation

[0017] Embodiments of this application will now be described in more detail with reference to the accompanying drawings. While embodiments of this application are shown in the drawings, it should be understood that this application may be implemented in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided to make this application more thorough and complete, and to fully convey the scope of this application to those skilled in the art.

[0018] It should be understood that although the terms "first," "second," "third," etc., may be used in this application to describe various information, this information should not be limited to these terms. These terms are only used to distinguish information of the same type from one another. For example, without departing from the scope of this application, first information may also be referred to as second information, and similarly, second information may also be referred to as first information. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this application, "multiple" means two or more, unless otherwise explicitly specified.

[0019] In the description of this application, it should be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, and do not 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 application.

[0020] Unless otherwise expressly specified and limited, the terms "installation," "connection," "linking," 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. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0021] The technical solutions of the embodiments of this application are described in detail below with reference to the accompanying drawings.

[0022] like Figures 1-3 The diagram illustrates a connection structure for adding steel corbels to an existing concrete column, applied to an existing concrete structural column 1 to increase its load-bearing support points. It includes: a row of anchor bolts 2 vertically penetrating the front and rear of the structural column 1 and spaced apart in the middle of the column 1; anchor plates 3 fixed based on the anchor bolts 2; and corbel faceplates 4 and corbel stiffening plates 5 installed on the anchor plates 3. The anchor bolts 2, composed of bolts, nuts, and washers, are used to fix the anchor plates 3 to the concrete structural column 1. Corbel faceplates 4 and corbel stiffening plates 5 are correspondingly installed on the anchor plates 3, allowing the newly added corbels to serve as new load-bearing support points, transferring concentrated loads and avoiding excessive damage to the already aged and damaged old concrete column.

[0023] Four bolts are inserted into the structural column 1. Each bolt connects to a set of anchor plates 3 on the front and rear surfaces of the column 1, including a front anchor plate 3 on the front side and a rear anchor plate 3 on the rear side. Four connecting angle steels 7 are installed on the four edges of the structural column 1, including angle steel No. 1 and No. 2 corresponding to the two front edges, and angle steel No. 3 and No. 4 corresponding to the two rear edges. The right side of angle steel No. 1 and the left side of angle steel No. 2 are welded to the front anchor plate 3, and the right side of angle steel No. 3 and the left side of angle steel No. 4 are welded to the rear anchor plate 3. Because the angle steel itself has an "L-shaped structure" that matches the side edges of the structural column 1, after one side of the connecting angle steel 7 is welded to the anchor plate 3, the other side can hold the structural column 1 in place. Then, connecting flat steels 6 are used to connect angle steel No. 1 and No. 3, and angle steel No. 2 and No. 4 on the left and right sides of the structural column 1, respectively, ultimately forming a hoop structure for the structural column 1.

[0024] Technical points: When constructing the four-sided angle steel, first lay out the positioning lines and weld it to the anchor plate 3 on the ground to reduce the amount of high-altitude welding work; after the anchor plate 3 is in place and the anchor bolt 2 is tightened, connect the flat steel 6 and then weld it to the connecting angle steel 7. During this process, the anchor plate 3 must be in close contact with the concrete column to ensure that the shear force can be effectively transferred between the anchor plate 3 and the concrete. Then weld the connecting flat steel 6, so that the shear force is transferred to the concrete column through the anchor rod and the anchor plate 3.

[0025] Finally, it should be noted that in this document, relationships such as "first" and "second" are used merely to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "include," "contain," or any other variations are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus.

[0026] The units described as separate components may or may not be physically separate. The components shown as units may or may not be physical units; that is, they may be located in one place or distributed across multiple network units. Some or all of the units can be selected to achieve the purpose of this embodiment according to actual needs.

[0027] The various embodiments of this application have been described above. These descriptions are exemplary and not exhaustive, nor are they limited to the disclosed embodiments. Many modifications and variations will be apparent to those skilled in the art without departing from the scope and spirit of the described embodiments. The terminology used herein is chosen to best explain the principles, practical application, or improvement of the technology in the market, or to enable others skilled in the art to understand the embodiments disclosed herein.

Claims

1. A connecting structure for adding a steel corbel to an existing concrete column, characterized by, The application relates to a structure column and a method for manufacturing the same. A plurality of anchor bolts are arranged in the middle of the structure column in the vertical direction, a plurality of anchor plates are arranged on the surface of the structure column and connected with the anchor bolts, connecting angle steels are clamped on the edges of the structure column, and corbel panels and corbel stiffening plates are arranged on the anchor plates, one side of the connecting angle steel is connected and fixed with the anchor plate, and the other side is connected with the adjacent connecting angle steel based on the connecting flat steel to form a surrounding hoop structure for the structure column.

2. The connecting structure for adding a new steel corbels to an existing concrete column according to claim 1, characterized in that, The anchor bolts pass through the front and back sides of the structure column, the anchor plates include front anchor plates arranged on the front side of the structure column and back anchor plates arranged on the back side of the structure column.

3. The connecting structure for adding a new steel corbels to an existing concrete column according to claim 1, characterized in that, The connecting angle steels are arranged corresponding to the four edges of the structure column, one side of the connecting angle steel is welded with the anchor plate, and the other side is clamped on the structure column and welded with the adjacent connecting angle steel based on the connecting flat steel.

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