A detachable haunch connecting joint

By using detachable bracket connection nodes and employing a panel connection mechanism and bolt connections, the problem of non-removable welded brackets is solved, enabling convenient disassembly and efficient transportation, and adapting to crane system upgrades.

CN122129094APending Publication Date: 2026-06-02CHANGJIANG PRECISION (SHANGHAI) CONSTR TECH CO LTD +2

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
CHANGJIANG PRECISION (SHANGHAI) CONSTR TECH CO LTD
Filing Date
2026-02-11
Publication Date
2026-06-02

AI Technical Summary

Technical Problem

The welding and fixing of corbels in existing building steel structures makes them impossible to remove and recycle, affecting aesthetics, causing inconvenience in transportation, and making subsequent modification of the crane system difficult.

Method used

The system employs detachable bracket connection nodes, achieving a reliable connection between the bracket and the steel column through a panel connection mechanism and bolt connection. The bracket components are detachable without damaging the steel column and are individually packaged for transportation.

Benefits of technology

It achieves reliable connection and convenient disassembly of the brackets, reduces transportation space occupation, improves transportation efficiency, supports mass production and standardized fixed tooling, and adapts to crane system upgrades.

✦ Generated by Eureka AI based on patent content.

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Abstract

This invention relates to a detachable corbel connection node, comprising a steel column body, a surrounding plate connection mechanism, and corbel components. The surrounding plate connection mechanism is installed around the four sides of the steel column body and includes a support plate with a notch on the connection surface between the steel column body and the corbel component. A corbel end plate is provided in the center of the corbel component, and a protrusion on the end plate matches the notch. The protrusion of the corbel component engages with the notch of the steel column body, and the corbel component and the surrounding plate connection mechanism are connected by bolts. This invention achieves a reliable corbel connection and is easy to disassemble.
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Description

Technical Field

[0001] This invention relates to the field of hoisting technology in steel structures, and particularly to a detachable bracket connection node. Background Technology

[0002] The following problems exist in the existing process of hoisting and transporting steel structure components: 1. Problems with Permanent Welding Fixing: Traditional corbels commonly used in steel structures are fixed to steel columns by welding in a processing plant. After welding, the corbel becomes part of the permanent structure. If it needs to be removed, gas cutting equipment is required, which damages the base material and makes it impossible to recycle. Such corbels left in the structure also affect the building's aesthetics and increase the permanent load.

[0003] 2. Inconvenient transportation: The cantilever length of traditional corbel structures is generally quite long, and they are transported as a whole with steel columns, which results in a large space occupation during transportation, reducing the carrying capacity of a single vehicle, and they are also prone to damage from bumps and knocks during transportation.

[0004] 3. Issues with later modifications: The fixed length and cross-section of the bracket cause inconvenience for later upgrades and modifications to the crane system.

[0005] Therefore, in order to solve the above-mentioned technical problems, it is indeed necessary to provide a detachable bracket connection node to overcome the defects in the prior art. Summary of the Invention

[0006] The purpose of this invention is to provide a detachable bracket connection node that can achieve a reliable connection of brackets and is easy to disassemble.

[0007] To achieve the above objectives, the present invention adopts the following technical solution: a detachable corbel connection node, comprising a steel column body, a surrounding plate connection mechanism, and a corbel component; the surrounding plate connection mechanism is installed around the four sides of the steel column body, including a support plate provided on the connection surface between the steel column body and the corbel component, the support plate having a notch; a corbel end plate is provided in the corbel component, the corbel end plate having a protrusion that matches the notch; the protrusion of the corbel component is engaged with the notch of the steel column body, and the corbel component and the surrounding plate connection mechanism are connected by bolts.

[0008] The tray includes an upper tray and a lower tray, with the recesses of the upper tray and the lower tray facing each other.

[0009] The aforementioned enclosure connection mechanism includes column end plates and outer horizontal stiffening plates; the column end plates are set on the front and rear sides of the corbel component to be connected, and each side of the steel column body is connected to a column end plate. The column end plates are flush with the surface of the steel column body and have screw holes. An outer horizontal stiffening plate is connected between the column end plates on the front and rear sides of the same side.

[0010] The outer horizontal stiffening plate includes an upper horizontal plate and a lower horizontal plate that are parallel to each other.

[0011] The steel column body is a box-shaped steel column.

[0012] The steel column body is an H-shaped steel column, and its surrounding plate connection mechanism also includes an outer vertical stiffening plate, which is connected between the column end plates on the front and rear sides of the same side.

[0013] The outer horizontal stiffening plate is divided into an inner plate and an outer plate by the outer vertical stiffening plate. The inner plate extends into the flange web of the H-shaped steel column and is connected to the inner side of the outer vertical stiffening plate, the column end plate, the flange of the H-shaped steel column, and the web of the H-shaped steel column. The outer plate is connected to the outer side of the outer vertical stiffening plate and the column end plate.

[0014] The corbel component includes a corbel end plate, an upper plate, a lower plate, and a corbel web plate; the corbel end plate is connected to the steel column body, and the upper plate, lower plate, and corbel web plate are vertically connected to one side of the corbel end plate, forming an I-beam structure.

[0015] The connection between the upper plate, the lower plate and the bracket end plate has a horizontal bracing plate and a vertical bracing plate.

[0016] A reinforcing brace is vertically connected between the upper and lower plates.

[0017] Compared with the prior art, the present invention has the following beneficial effects: This invention allows for the manufacture of corbel components in several standard load ratings and size series. During use, the corbel components are simply bolted in and tightened. Disassembly is convenient, leaving minimal space on the steel column and causing no damage. This invention facilitates large-scale mass production and standardizes transportation packaging and fixtures, improving transportation efficiency. Furthermore, the corbel components of this invention have a reliable structure and high load-bearing capacity. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the steel column body according to a preferred embodiment of the present invention; Figure 2 This is a schematic diagram of the bracket component of a preferred embodiment of the present invention; Figure 3 This is a schematic diagram of the installation completed according to the preferred embodiment of the present invention. Figure 1 ; Figure 4 This is a schematic diagram of the installation completed according to the preferred embodiment of the present invention. Figure 2 ; Figure 5 This is a schematic diagram of the steel column body of a preferred embodiment of the present invention; Figure 6 This is a schematic diagram of the bracket component of a preferred embodiment of the present invention; Figure 7 This is a schematic diagram of the installation completed according to the preferred embodiment of the present invention, second embodiment. Figure 1 ; Figure 8 This is a schematic diagram of the installation completed according to the preferred embodiment of the present invention, second embodiment. Figure 2 ; Figure 9 This is a cross-sectional schematic diagram of a preferred embodiment of the present invention. Detailed Implementation

[0019] Please refer to the instruction manual appendix. Figure 1-8 As shown, the present invention will be described in further detail below. Example

[0020] like Figure 1-4 As shown, the present invention mainly includes a steel column body 1, a surrounding panel connecting mechanism 2, and corbel components 3. In this embodiment, the steel column body 1 is a box-shaped steel column, with corbel components 3 connected to one side or two opposite sides. The surrounding panel connecting mechanism 2 is installed around the four sides of the steel column body 1, and the corbel components 3 are connected to the steel column body 1 via the surrounding panel connecting mechanism 2. When the corbel components 3 are removed, the surrounding panel connecting mechanism 2 is retained, without damaging the steel column body 1, and also occupies little space.

[0021] The connecting mechanism 2 includes a support plate 21, a column end plate 22, and an outer horizontal stiffening plate 23. A support plate 21 is provided on the connecting surface between the steel column body 1 and the corbel member 3, and a notch 24 is formed on the support plate. In this embodiment, the support plate 21 includes an upper support plate and a lower support plate, with the two notches 24 facing each other. Similarly, on this side and its back side, which are the front and rear sides of the corbel member 3 to be connected, the left and right sides of the steel column body 1 are connected to the column end plates 22. The column end plates 22 are flush with the surface of the steel column body 1, forming an outward extension of the surface of the steel column body 1. Screw holes are formed on the column end plates 22. An outer horizontal stiffening plate 23 is vertically connected between the two column end plates 22 on the front and rear sides of the same side. An upper horizontal plate and a lower horizontal plate are provided on each side to increase the connection strength.

[0022] See Figure 2The corbel component 3 includes a corbel end plate 31, an upper plate 32, a lower plate 33, and a corbel web plate 34. One side of the corbel end plate 31 is in contact with the steel column body 1. The upper and lower sides of the corbel end plate 31 form outward protrusions 35, which match the recesses 24 of the support plate 21. Corresponding screw holes are opened on the left and right sides of the corbel end plate 31. The other side of the corbel end plate 31 is vertically connected to the upper plate 32, the lower plate 33, and the corbel web plate 34, forming an I-beam structure. In order to improve the strength of the corbel component 3, horizontal stiffening plates 36 and vertical stiffening plates 37 are added at the connection between the upper plate 33, the lower plate 34 and the corbel end plate 31. In this embodiment, the horizontal stiffening plates 36 and the vertical stiffening plates 37 are triangular structures, forming a transition support reinforcement at the corner. In addition, a reinforcing plate 38 is provided between the upper plate 33 and the lower plate 34. In this embodiment, the reinforcing plate 38 has multiple pieces at different positions, forming multi-point reinforcement.

[0023] Depending on the design requirements, one or two corbel members can be connected to the steel column body 1, as detailed in the following references. Figure 3 and Figure 4 .

[0024] When this invention is prefabricated in the factory, the enclosure connecting mechanism 2 only needs to be fixedly welded to the steel column body 1, and the corbel component 3 is made into an independent component. The two parts are separate, providing flexible space for loading, transportation, and packaging, and greatly improving transportation efficiency. When transported to the site, high-strength bolts 11 are used to fasten the corbel end plate 31 of the corbel component 3 and the column end plate 22. When the corbel needs to be disassembled, the corbel component 3 can be removed directly by bolting 11. Example

[0025] The main difference between this embodiment and embodiment one is that the steel column body 1 in this embodiment is an H-shaped steel column, including H-shaped steel column wing plate 12 and H-shaped steel column web plate 13. Therefore, the connection between the column end plates 22 in the enclosure connection mechanism 2 is different.

[0026] Combination Figure 9In this embodiment, the connecting mechanism for the enclosure plate includes not only the support plate 21, column end plate 22, and outer horizontal stiffening plate 23, but also an outer vertical stiffening plate 26. The support plate 21 and column end plate 22 are the same as in Embodiment 1. In this embodiment, the column end plates 22 on the same side are connected by the outer vertical stiffening plate 26, which is parallel to the web of the H-shaped steel column 13. The outer horizontal stiffening plate 23 is divided into an inner plate 231 and an outer plate 232 by the outer vertical stiffening plate 26. The inner plate 231 is located in the enclosed space formed by the outer vertical stiffening plate 26, column end plate 22, H-shaped steel column wing plate 12, and H-shaped steel column web 13. Therefore, the sides of the inner plate 231 are connected to the inner side of the outer vertical stiffening plate 26, parts of the two column end plates 22, one side of the H-shaped steel column wing plate 12, and one side of the H-shaped steel column web 13, respectively. The outer plate 232 is located on the outer side of the outer vertical stiffening plate 26, and its edges are connected to the outer side of the outer vertical stiffening plate 26 and parts of the two column end plates 22.

[0027] Also, depending on the design requirements, one or two corbel members can be connected to the steel column body 1, as can be referred to respectively. Figure 7 and Figure 8 .

[0028] The above-described specific embodiments are merely preferred embodiments of this invention and are not intended to limit this invention. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this invention should be included within the protection scope of this invention.

Claims

1. A detachable bracket connection node, characterized in that: It includes a steel column body, a surrounding panel connecting mechanism, and a corbel component; the surrounding panel connecting mechanism is installed around the four sides of the steel column body and includes a support plate with a notch on the connection surface between the steel column body and the corbel component; a corbel end plate is provided in the corbel component, and a protrusion matching the notch is provided on the corbel end plate; the protrusion of the corbel component is engaged with the notch of the steel column body, and the corbel component and the surrounding panel connecting mechanism are connected by bolts.

2. The detachable bracket connection node as described in claim 1, characterized in that: The tray includes an upper tray and a lower tray, with the recesses of the upper tray and the lower tray facing each other.

3. A detachable bracket connection node as described in claim 1, characterized in that: The aforementioned enclosure connection mechanism includes column end plates and outer horizontal stiffening plates; the column end plates are set on the front and rear sides of the corbel component to be connected, and each side of the steel column body is connected to a column end plate. The column end plates are flush with the surface of the steel column body and have screw holes. An outer horizontal stiffening plate is connected between the column end plates on the front and rear sides of the same side.

4. A detachable bracket connection node as described in claim 3, characterized in that: The outer horizontal stiffening plate includes an upper horizontal plate and a lower horizontal plate that are parallel to each other.

5. A detachable bracket connection node as described in claim 1, characterized in that: The steel column body is a box-shaped steel column.

6. A detachable bracket connection node as described in claim 1, characterized in that: The steel column body is an H-shaped steel column, and its surrounding plate connection mechanism also includes an outer vertical stiffening plate, which is connected between the column end plates on the front and rear sides of the same side.

7. A detachable bracket connection node as described in claim 6, characterized in that: The outer horizontal stiffening plate is divided into an inner plate and an outer plate by the outer vertical stiffening plate. The inner plate extends into the flange web of the H-shaped steel column and is connected to the inner side of the outer vertical stiffening plate, the column end plate, the flange of the H-shaped steel column, and the web of the H-shaped steel column. The outer plate is connected to the outer side of the outer vertical stiffening plate and the column end plate.

8. A detachable bracket connection node as described in claim 1, characterized in that: The corbel component includes a corbel end plate, an upper plate, a lower plate, and a corbel web plate; the corbel end plate is connected to the steel column body, and the upper plate, lower plate, and corbel web plate are vertically connected to one side of the corbel end plate, forming an I-beam structure.

9. A detachable bracket connection node as described in claim 8, characterized in that: The connection between the upper plate, the lower plate and the bracket end plate has a horizontal bracing plate and a vertical bracing plate.

10. A detachable bracket connection node as described in claim 9, characterized in that: A reinforcing brace is vertically connected between the upper and lower plates.