A rigid connection structure node of a canopy steel column and a concrete structure column

Abstract

The utility model provides a kind of rigid connection construction joint of canopy steel column and concrete structure column, comprising: concrete structure column, the structure column includes a plurality of first reinforcement group fixedly connected in longitudinal and transverse interlaced, and first pouring layer connected in the first reinforcement group is poured, part first reinforcement group extends to the above of first pouring layer, the structure column further includes the first anchor bolt extended to the above of first pouring layer;Still include canopy steel column, the canopy steel column includes body part, etc.The utility model effectively avoids the structural safety risk caused by the offset of pre-buried steel column base, insufficient concrete strength and other reasons in traditional connection mode by innovative rigid connection construction joint, fundamentally guarantees the uniformity and reliability of canopy steel column stress.In practical application, this structure can prevent the quality defects such as node damage and crack caused by uneven stress in later period, greatly prolong the service life of structure.

Description

Technical Field

[0001] This utility model relates to the field of building structure engineering technology, specifically to a rigid connection structure node between a canopy steel column and a concrete structural column. Background Technology

[0002] In traditional construction projects, the construction of steel columns for canopies often involves pre-embedding steel column base plates before the initial pouring of floor slabs or foundation slabs, as disclosed in Chinese patent document CN204418526U. However, this approach has several problems. Firstly, the pre-embedded steel column bases are prone to misalignment, and the strength and quality of the concrete at the pre-embedded location are difficult to guarantee. These external construction factors can potentially jeopardize the overall structural safety and stability of the steel column. To mitigate these risks, the connection between the steel column and the pre-embedded plates is typically only made after the concrete has reached a certain strength, thus forming a unified structure.

[0003] The connection between the steel columns of the canopy and the cast-in-place concrete surface is a critical node in the entire structure. Because the upper part of the steel columns needs to bear significant forces and loads, this connection node experiences stress concentration, becoming a weak point in the structure. In traditional construction, the connection between the steel columns and embedded parts is mainly achieved through high-strength bolts and welding. Both methods have extremely stringent requirements for construction quality. Precise operation is necessary during construction to ensure that bolt tightening force and welding quality meet standards, which undoubtedly increases the difficulty and time cost of construction, leading to extended construction periods and potentially affecting the normal construction time of subsequent procedures. Utility Model Content

[0004] In view of the shortcomings of the existing technology, the purpose of this utility model is to propose a rigid connection structure node between the steel column of the canopy and the concrete structural column to solve the problems mentioned in the background section.

[0005] This utility model is achieved through the following technical solution:

[0006] A rigid connection joint between a steel column and a concrete structural column of a canopy includes:

[0007] A concrete structural column, the structural column comprising a plurality of first steel reinforcement groups fixedly connected in a crisscross pattern, and a first cast-in-place layer cast and connected to the first steel reinforcement groups, a portion of the first steel reinforcement groups extending above the first cast-in-place layer, the structural column further comprising a first anchor extending above the first cast-in-place layer.

[0008] It also includes a canopy steel column, which includes a body part, the bottom of which is welded with a steel plate. The canopy steel column is placed above the first casting layer through the steel plate, and the first anchor is threadedly connected and fixed to the steel plate.

[0009] It also includes a second set of reinforcing bars, which is tied and fixed to the first set of reinforcing bars and arranged around the outer perimeter of the canopy steel column;

[0010] It also includes a second pouring layer, which wraps the second steel reinforcement group, and the outer periphery of the connection between the concrete structural column and the canopy steel column.

[0011] Furthermore, the canopy steel column also includes a plurality of second anchors extending in the horizontal direction. The second anchors are fixedly connected to the main body and arranged in an array along the height direction of the main body. The second casting layer covers the second anchors.

[0012] Furthermore, it also includes a reinforcing bar welded plate, which is welded and fixed to the second reinforcing bar group, and the second casting layer wraps around the reinforcing bar welded plate.

[0013] Furthermore, the first reinforcing bar group extends beyond the first cast layer and is arranged around the outer periphery of the steel plate.

[0014] Furthermore, the first and second steel reinforcement groups are arranged in a concentric circular or square ring shape along the same axis.

[0015] The beneficial effects of this utility model are as follows: By providing a rigid connection joint between the steel column and the concrete structural column of the canopy, this utility model solves the problem of weak strength at the connection point in existing technologies, significantly enhancing the strength and stability of the connection. Through this innovative rigid connection joint, it effectively avoids structural safety risks caused by misalignment of the pre-embedded steel column base and insufficient concrete strength in traditional connection methods, fundamentally ensuring the uniformity and reliability of the stress on the canopy steel column. In practical applications, this structure can prevent common quality defects such as joint damage and cracking caused by uneven stress later on, significantly extending the service life of the structure and reducing maintenance costs. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the rigid connection structure between the steel column and the concrete structural column of the canopy of this utility model.

[0017] Figure 2 The first embodiment of this utility model follows Figure 1 A cross-sectional view at point AA.

[0018] Figure 3 The second embodiment of this utility model follows Figure 1 A cross-sectional view at point AA.

[0019] The above figures include the following reference numerals:

[0020] 1. Concrete structural column; 11. First reinforcement group; 12. First pouring layer; 13. First anchor; 2. Canopy steel column; 21. Main body; 22. Steel plate; 23. Second anchor; 3. Second reinforcement group; 4. Second pouring layer; 5. Reinforcing bar welded plate. Detailed Implementation

[0021] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. It should be noted that the description of these embodiments is intended to aid in understanding this utility model, but does not constitute a limitation thereof. Furthermore, the technical features involved in the various embodiments of this utility model described below can be combined with each other as long as they do not conflict with each other.

[0022] Reference Figures 1 to 3 As shown, a rigid connection joint between a steel column and a concrete structural column of a canopy includes:

[0023] A concrete structural column 1, the structural column includes a plurality of first steel reinforcement groups 11 that are fixedly connected in a crisscross pattern, and a first cast-in-place layer 12 that is cast and connected to the first steel reinforcement groups 11. Part of the first steel reinforcement groups 11 extend above the first cast-in-place layer 12. The structural column also includes a first anchor nail 13 that extends above the first cast-in-place layer 12.

[0024] It also includes a canopy steel column 2, which includes a body part 21. A steel plate 22 is welded to the bottom of the body part 21. The canopy steel column 2 is placed above the first casting layer 12 through the steel plate 22. The first anchor nail 13 is threadedly connected and fixed to the steel plate 22. Preferably, the body part 21 is provided with a plurality of nuts above the pre-embedded plurality of steel plates 22. The first anchor nail 13 is connected to the nuts through a threaded structure.

[0025] It also includes a second steel bar group 3, which is tied and fixed to the first steel bar group 11 and arranged around the outer periphery of the canopy steel column 2;

[0026] It also includes a second pouring layer 4, which wraps the second steel reinforcement group 3, and the outer periphery of the connection between the concrete structural column 1 and the canopy steel column 2.

[0027] This invention provides a rigid connection joint between the steel column 2 of the canopy and the concrete structural column 1, solving the problem of weak strength at the connection point in existing technologies and significantly enhancing the strength and stability of the connection. The innovative rigid connection joint effectively avoids structural safety risks caused by misalignment of the embedded steel column base and insufficient concrete strength in traditional connection methods, fundamentally ensuring the uniformity and reliability of the stress on the steel column 2. In practical applications, this structure can prevent common quality defects such as joint damage and cracking caused by uneven stress, significantly extending the service life of the structure and reducing maintenance costs.

[0028] The canopy steel column 2 also includes a plurality of second anchors 23 extending horizontally. The second anchors 23 are fixedly connected to the main body 21 and are arranged in an array along the height direction of the main body 21. The second casting layer 4 encloses the second anchors 23. The installation of the second anchors 23 enhances the connection strength between the second casting layer 4 and the canopy steel column 2, effectively preventing relative displacement between the canopy steel column 2 and the concrete caused by factors such as wind force from below or earthquakes, thus effectively improving the connection strength between the two.

[0029] It also includes a reinforcing bar welded plate 5, which is welded and fixed to the second reinforcing bar group 3, and the second cast layer 4 wraps around the reinforcing bar welded plate 5. The reinforcing bar welded plate 5 is used to connect two adjacent canopy steel columns 2 without additional welding operations, and connects the individual canopy steel columns 2 into an organic whole, enhancing the spatial stiffness and integrity of the entire canopy structure. This effectively resists horizontal and vertical shear forces caused by wind loads, earthquakes, etc., improving the stability and safety of the canopy structure under various working conditions, and avoiding the risk of overall structural collapse due to connection failure.

[0030] The first reinforcing bar group 11 extends beyond the first cast-in-place layer 12 and surrounds the outer periphery of the steel plate 22. When the second cast-in-place layer 4 encloses the first reinforcing bar group 11 and the steel plate 22, the first reinforcing bar group 11 forms a "skeleton" in the concrete, tightly connected to the steel plate 22. This structure effectively restricts the relative displacement between the first reinforcing bar group 11 and the steel plate 22, improving the connection strength between the steel column and the concrete foundation.

[0031] Reference Figure 2 As shown, the first steel bar group 11 and the second steel bar group 3 are concentric square rings arranged along the same axis.

[0032] Reference Figure 3 As shown, the first steel bar group 11 and the second steel bar group 3 are arranged in a concentric ring shape along the same axis.

[0033] The concentric circular or square ring arrangement ensures a uniform and symmetrical distribution of the first and second reinforcement groups 11 and 3, conforming to the aesthetic and mechanical symmetry principles of structural design. This regular arrangement not only makes the structure more aesthetically pleasing but also facilitates understanding and operation by designers and construction personnel, reducing complexity in the design and construction process. The concentric circular or square ring arrangement of the first and second reinforcement groups 11 and 3 forms a cage-like load-bearing system, providing good constraint on the second cast-in-place layer 4, improving the shear capacity and deformation capacity of the concrete, and enabling the structure to maintain good integrity and stability even under large shear forces.

[0034] During construction, the concrete structural column 1 is constructed as an integral part of the building foundation, or the lower end of the concrete structural column 1 is pre-embedded underground.

[0035] Step 1: The first steel reinforcement group 11 is composed of several first transverse steel bars and first longitudinal steel bars. The first transverse steel bars and the first longitudinal steel bars are tied and fixed, and first anchor nails 13 are set in them. Then, a formwork is set in the first steel reinforcement group 11 and concrete is poured to form the first pouring layer 12. The first steel reinforcement group 11 and the first anchor nails 13 are partially exposed at the upper end of the first pouring layer 12.

[0036] Step 2: Then weld a steel plate 22 to the lower end of the main body 21 of the canopy steel column 2, and weld a second anchor 23 to the outer periphery of the main body 21.

[0037] Step 3: Tie the second transverse reinforcement and the second longitudinal reinforcement to the first transverse reinforcement and the first longitudinal reinforcement respectively to form the second reinforcement group 3. Weld the lap weld plate 5 to the second transverse reinforcement. Build a formwork around the lap weld plate 5 and the second reinforcement group 3, then pour concrete to form the second pouring layer 4.

[0038] Through the above steps, a rigid connection between the canopy steel column 2 and the concrete structural column 1 is achieved, significantly enhancing the strength and stability of the connection between the canopy steel column 2 and the concrete structural column 1.

[0039] 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.

[0040] In the description of this utility model, 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 with "first" and "second" may explicitly or implicitly include one or more of that feature.

[0041] The above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A rigid connection structure node of a canopy steel column and a concrete structure column, characterized by, include: A concrete structural column (1) includes several first steel reinforcement groups (11) that are fixedly connected in a crisscross pattern, and a first pouring layer (12) that is cast and connected to the first steel reinforcement groups (11). Part of the first steel reinforcement groups (11) extends above the first pouring layer (12). The structural column also includes a first anchor (13) that extends above the first pouring layer (12). It also includes a canopy steel column (2), the canopy steel column (2) includes a body part (21), the bottom of the body part (21) is welded with a steel plate (22), the canopy steel column (2) is placed above the first casting layer (12) through the steel plate (22), and the first anchor (13) is threadedly connected and fixed to the steel plate (22); It also includes a second steel bar group (3), which is tied and fixed to the first steel bar group (11) and arranged around the outer periphery of the canopy steel column (2); It also includes a second pouring layer (4), which wraps the second steel reinforcement group (3), and the outer periphery of the connection between the concrete structural column (1) and the canopy steel column (2).

2. The rigid connection structure node between a canopy steel column and a concrete structural column according to claim 1, characterized in that: The canopy steel column (2) also includes a number of second anchors (23) extending in the horizontal direction. The second anchors (23) are fixedly connected to the body part (21) and arranged in an array along the height direction of the body part (21). The second casting layer (4) wraps the second anchors (23).

3. The rigid connection structure node between a canopy steel column and a concrete structural column according to claim 1, characterized in that: It also includes a reinforcing bar welded plate (5), which is welded and fixed to the second reinforcing bar group (3), and the second casting layer (4) wraps the reinforcing bar welded plate (5).

4. The rigid connection construction joint of a canopy steel column and a concrete structure column according to claim 1, characterized in that: The first steel bar group (11) extends out of the first cast layer (12) and is arranged around the outer periphery of the steel plate (22).

5. The rigid connection construction joint of a canopy steel column and a concrete structure column according to claim 1, characterized in that: The first steel bar group (11) and the second steel bar group (3) are arranged in a concentric circular ring or a concentric square ring on the same axis.

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