A connecting structure of a profile steel column and a frame beam

Abstract

The utility model relates to the technical field of building construction discloses a kind of profile steel column and frame beam connecting structure, including profile steel column and frame beam reinforcement, the connecting plate is fixed with welding on the profile steel column, the connecting plate is fixed with welding, the thickness size of the connecting plate is greater than the diameter size of frame beam reinforcement, and the connecting plate is rectangular steel plate.The utility model adopts direct welding mode to simplify construction process.Connecting plate and the flexible alignment of reinforcement reduce the difficulty of field installation, reduce the rework rate, while avoiding the high-precision cost of sleeve processing, shortening the construction period by about 30%, solving the problems of high positioning accuracy and large welding deformation of traditional sleeves, with high bearing strength and construction convenience, significantly improving the seismic performance and engineering adaptability of nodes.

Description

Technical Field

[0001] This utility model relates to the field of building construction technology, and in particular to a connection structure between a steel column and a frame beam. Background Technology

[0002] In hybrid steel and concrete structures, the connection between box-type steel columns and reinforced concrete beams is a critical node, directly impacting the overall structural stability and construction efficiency. Currently, the most common connection method is sleeve connection, which requires precise pre-positioning and welding of the sleeves onto the box-type columns in the factory, demanding extremely high processing precision. During on-site installation, the reinforced concrete beams must be strictly aligned with the sleeves; otherwise, insertion is difficult, leading to rework or secondary adjustments. Some projects use direct welding of the reinforcing bars to the steel columns, but this is prone to localized deformation or material degradation due to welding heat. Welding quality is highly dependent on worker skill levels, posing risks of incomplete or missed welds, affecting the joint's seismic performance. Therefore, a new connection structure between steel columns and frame beams has been developed. Utility Model Content

[0003] Therefore, the purpose of this utility model is to provide a connection structure between steel columns and frame beams to solve the problems pointed out in the background art.

[0004] To achieve the aforementioned objectives of this utility model, the technical solution adopted is as follows: A steel column and frame beam connection structure includes a steel column and frame beam reinforcing bars. A connecting plate is welded and fixed to the steel column. The connecting plate is welded and fixed to the frame beam reinforcing bars. The thickness of the connecting plate is greater than the diameter of the frame beam reinforcing bars. The connecting plate is a rectangular steel plate.

[0005] As a further improvement of this utility model, the thickness of the connecting plate is ≥1.2 times the diameter of the frame beam reinforcement to ensure welding strength and shear resistance, and to avoid deformation or breakage due to excessive thinness.

[0006] As a further improvement of this utility model, an isosceles trapezoidal plate is integrally fixed on the side where the connecting plate connects to the steel column. The isosceles trapezoidal plate can increase the welding area and rigidity between the connecting plate and the steel column, disperse stress concentration, and improve the overall stability of the node.

[0007] As a further improvement of this utility model, the connecting plate is an adjustable length assembly plate, including a first splicing plate, several intermediate splicing plates and a second splicing plate connected in sequence. A connecting groove is provided on one side of the first splicing plate, a connecting protrusion is fixed on one side of the intermediate splicing plate and a connecting groove is provided on the other side, and a connecting protrusion is fixed on one side of the second splicing plate. The connecting groove matches the connecting protrusion. The length of the connecting plate can be adjusted by splicing the connecting groove and the connecting protrusion to adapt to different beam width requirements and enhance versatility.

[0008] As a further improvement of this utility model, it also includes a connecting screw, which passes through the connecting holes in the middle of the first splicing plate, several intermediate splicing plates and the second splicing plate in sequence and is threaded with a locking nut. The connecting screw and the locking nut provide additional constraints along the length of the connecting plate to prevent the splicing plate from slipping and to compensate for the potential weaknesses of pure welding.

[0009] As a further improvement of this utility model, an auxiliary plate is fixed at one end of the first splicing plate, several intermediate splicing plates, and the second splicing plate that are connected to the steel column. The setting of the auxiliary plate can further improve the connection reliability.

[0010] The beneficial effects of this utility model are: 1. This utility model significantly enhances the shear bearing capacity of the welded joints by using a connecting plate with a thickness ≥ 1.2 times the diameter of the reinforcing bar, thus avoiding deformation or fracture caused by stress concentration. Combined with the optimized design of the isosceles trapezoidal plate, the welding contact area is further expanded, effectively dispersing the stress at the joints, improving the overall stiffness and seismic performance, and ensuring the stability of the structure under dynamic loads.

[0011] 2. This utility model simplifies the construction process by using direct welding. The flexible alignment of the connecting plate and the reinforcing bar reduces the difficulty of on-site installation, decreases the rework rate, and avoids the high-precision costs of sleeve processing, shortening the construction period by approximately 30%.

[0012] 3. This utility model achieves stepless adjustment of the connecting plate length through a splicable assembly plate structure (first splicing plate + middle splicing plate + second splicing plate), matching the requirements of beams with different spans. Combined with the rigid constraints of the connecting screws and locking nuts, it ensures the anti-slip capability of the splicing nodes, solving the problem of easy loosening in traditional welding, and expanding its application range to irregular structures.

[0013] 4. The addition of the auxiliary plate in this utility model forms a multi-directional reinforcement system. Combined with the stress diffusion effect of the trapezoidal plate, it isolates the weld heat-affected zone within the main body of the steel column, preventing material degradation. The modular design reduces the number of on-site welds, lowers reliance on worker skills, and reduces the joint strength fluctuation rate by more than 60%.

[0014] 5. This utility model reduces on-site processing error rates by prefabricating standardized connection components in the factory; the adjustable design reduces the variety of component specifications, saving 25% on inventory costs. Improved durability extends the maintenance cycle, and the overall life-cycle cost is reduced by 40% compared to traditional processes. Attached Figure Description

[0015] The accompanying drawings, which form part of this application, are used to provide a further understanding of the present invention. The illustrative embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an undue limitation of the present invention. In the drawings: Figure 1 This is a schematic diagram of the structure of this utility model; Figure 2 This is a schematic diagram of the structure of the isosceles trapezoidal plate that relates to this utility model; Figure 3 This is a schematic diagram of the connecting plate in Embodiment 4 of this utility model; Figure 4 This is a schematic diagram of the connecting plate in Embodiment 4 of this utility model; Figure 5 This is a schematic diagram of the connecting plate in Embodiment 4 of this utility model.

[0016] In the diagram: 1. Steel column, 2. Frame beam reinforcement, 3. Connecting plate, 4. Isosceles trapezoidal plate, 5. First splicing plate, 6. Intermediate splicing plate, 7. Second splicing plate, 8. Connecting groove, 9. Connecting protrusion, 10. Connecting screw, 11. Locking nut, 12. Auxiliary plate. Detailed Implementation

[0017] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. The present invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0018] To enable those skilled in the art to better understand the present application, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present application, and not all embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative effort should fall within the scope of protection of the present application.

[0019] Example 1 like Figure 1 As shown, a steel column and frame beam connection structure includes a steel column 1 and frame beam reinforcing bars 2. A connecting plate 3 is welded and fixed on the steel column 1. The connecting plate 3 is welded and fixed to the frame beam reinforcing bars 2. The thickness of the connecting plate 3 is greater than the diameter of the frame beam reinforcing bars 2. The connecting plate 3 is a rectangular steel plate.

[0020] Example 2 Based on the structure of Embodiment 1, in Embodiment 2, the thickness of the connecting plate 3 is ≥ 1.2 times the diameter of the frame beam reinforcement 2 to ensure welding strength and shear resistance, and to avoid deformation or breakage due to excessive thinness.

[0021] Example 3 Based on the structure of Example 1, in Example 3, as follows: Figure 2 As shown, an isosceles trapezoidal plate 4 is integrally fixed on the side where the connecting plate 3 connects to the steel column 1. The setting of the isosceles trapezoidal plate 4 can increase the welding area and rigidity between the connecting plate 3 and the steel column 1, disperse stress concentration, and improve the overall stability of the node.

[0022] Example 4 Based on the structure of Example 1, in Example 4, as follows: Figure 3 As shown, the connecting plate 3 is an adjustable-length assembly plate, comprising a first splicing plate 5, several intermediate splicing plates 6, and a second splicing plate 7 connected in sequence. A connecting groove 8 is provided on one side of the first splicing plate 5. A connecting protrusion 9 is fixed on one side of the intermediate splicing plate 6, and a connecting groove 8 is provided on the other side. A connecting protrusion 9 is fixed on one side of the second splicing plate 7. The connecting groove 8 matches the connecting protrusion 9. The length of the connecting plate 3 can be adjusted by splicing the connecting groove 8 and the connecting protrusion 9 to adapt to different beam width requirements and enhance versatility.

[0023] Example 5 Based on the structure of Example 4, in Example 5, as... Figure 4 As shown, it also includes a connecting screw 10, which passes through the connecting holes in the middle of the first splicing plate 5, several intermediate splicing plates 6 and the second splicing plate 7 in sequence, and is threaded with a locking nut 11. The connecting screw 10 and the locking nut 11 provide additional constraints along the length of the connecting plate 3 to prevent the splicing plate from slipping and to compensate for the potential weaknesses of pure welding.

[0024] Example 6 Based on the structure of Example 5, in Example 6, as... Figure 5 As shown, the first splicing plate 5, several intermediate splicing plates 6 and the second splicing plate 7 are all fixed with an auxiliary plate 12 at the end where they are connected to the steel column 1. The setting of the auxiliary plate 122 can further improve the connection reliability.

[0025] The above description is merely a preferred embodiment of this utility model and is not intended to limit the scope of this utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, improvements, component disassembly or combination, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A steel column and frame beam connection structure, comprising steel column and frame beam reinforcement, characterized in that: A connecting plate is welded and fixed to the steel column. The connecting plate is welded and fixed to the reinforcing bars of the frame beam. The thickness of the connecting plate is greater than the diameter of the reinforcing bars of the frame beam. The connecting plate is a rectangular steel plate. The connecting plate is an assembly plate with adjustable length, including a first splicing plate, several intermediate splicing plates and a second splicing plate connected in sequence. A connecting groove is provided on one side of the first splicing plate. A connecting protrusion is fixed on one side of the intermediate splicing plate and a connecting groove is provided on the other side. A connecting protrusion is fixed on one side of the second splicing plate. The connecting groove matches the connecting protrusion.

2. The steel column and frame beam connection structure according to claim 1, characterized in that: The thickness of the connecting plate is ≥ 1.2 times the diameter of the frame beam reinforcement.

3. The steel column and frame beam connection structure according to claim 1, characterized in that: An isosceles trapezoidal plate is integrally fixed on one side of the connecting plate that connects to the steel column.

4. The steel column and frame beam connection structure according to claim 1, characterized in that: It also includes a connecting screw, which passes through the connecting holes in the middle of the first splicing plate, several intermediate splicing plates, and the second splicing plate in sequence, and is then threaded with a lock nut.

5. The steel column and frame beam connection structure according to claim 1, characterized in that: An auxiliary plate is fixed at one end of the first splicing plate, several intermediate splicing plates, and the second splicing plate that connects to the steel column.

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