Connecting joint for converting circular pipe column of super high-rise structure into rectangular steel pipe column
By pre-welding the connection nodes of rectangular steel tube concrete columns and circular steel tube concrete columns in the factory, the problem of low welding accuracy when connecting circular steel tube columns is solved, efficient and firm connection is achieved, and construction quality and safety are ensured.
Patent Information
- Application Number
- CN202423061606.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-12
- Publication Date
- 2025-09-23
- Estimated Expiration
- 2034-12-12
AI Technical Summary
In the prior art, circular concrete-filled steel tube columns have low welding precision during connection, are difficult to operate, affect bearing capacity, and are inconvenient to connect, resulting in complex construction and difficulty in ensuring quality.
Rectangular steel tube concrete columns and circular steel tube concrete columns are connected by connecting plates and connecting tubes. They are pre-welded in the factory and then transported to the site of use. Concrete is injected to achieve conversion. The connecting plates and steel beams are fixed with high-strength bolts to enhance structural stability and shear resistance.
It achieves a firm connection, reduces construction complexity, improves construction quality and safety, ensures the beauty of the structure and the convenience of subsequent connections, and saves construction time.
Smart Images
Figure CN223373853U_ABST
Abstract
Description
Technical Field
[0001] The utility model particularly relates to a connection node for converting a circular tube column of a super high-rise structure into a rectangular steel tube column, belonging to the technical field of construction engineering. Background Art
[0002] In the late 1980s, with the application of steel tube concrete to high-rise buildings and the in-depth study of steel tube concrete columns under complex stress states of compression, bending, shear and torsion at home and abroad, the research on steel tube concrete has shifted from the simple study of steel tube concrete columns to the study of the overall performance of steel tube concrete structures and node connection methods. The connection methods of steel tube concrete nodes include the connection between steel tube concrete columns and beams, the connection with floor slabs, the connection with reinforced concrete columns, the connection with reinforced concrete foundations and the connection between steel tube concrete columns themselves. Foreign tests on beam-column nodes of steel tube concrete structures mainly use steel beams, because foreign research on steel tube concrete is based on steel frame foundations. In the past, Ito Gojo, Fu Gongyi and others conducted a certain number of tests on the nodes of square steel tube and circular steel tube concrete structures, mainly for the analysis of hysteresis curve and bearing capacity of the reinforced ring node structure. In China, the main test research was carried out on the beam-column nodes used in engineering, and their bearing capacity and seismic performance were evaluated. Most of the test model beams were reinforced concrete beams, and the node types included through-corrugated + ring beam nodes, single beam nodes, single and double beam nodes, double beam nodes, reinforced concrete ring beam nodes and reinforced ring nodes, etc. Due to its special advantages and the continuous deepening of research, steel tube concrete is developing into a dominant structural type of super high-rise buildings in strong wind and strong earthquake areas. In high-rise buildings, some use steel tube concrete columns, while others use them entirely. Steel tube concrete columns have a greater bearing capacity when subjected to axial compression and small eccentric compression, and are particularly effective when used in conjunction with high-strength concrete in high-rise buildings. Steel tube concrete is used in different shapes such as rectangles or circles during use. The circular structure is more beautiful but inconvenient to connect, while the rectangular structure is convenient to connect but has lower shear resistance. Therefore, at the current stage, it is necessary to connect the circular and rectangular shapes. However, most of the existing connection methods are connected by directly welding the steel pipes. This connection method is prone to damage at the weld during actual use, and the welding accuracy is low, which affects the subsequent bearing capacity of the steel tube concrete columns. In addition, the operation is difficult and inconvenient for users to operate. In view of this, the present utility model is specially proposed. Utility Model Content
[0003] The purpose of the utility model is to address the deficiencies of the existing technology and provide a connection node for converting circular tubular columns of super-high-rise structures into rectangular steel tubular columns, which has the advantages of firm connection and reduced construction complexity. By being able to be welded in advance in the project, it only needs to be fixed at the place of use when in use. While the connection is firm, it reduces the complexity of the user's work, facilitates the user's operation, ensures the quality of construction, and avoids technical problems of structural safety caused by excessive construction complexity and inability to ensure construction quality.
[0004] The utility model achieves the above-mentioned purpose through the following technical solutions: a connection node for converting a circular tube column of a super high-rise structure into a rectangular steel tube column, comprising a rectangular steel tube concrete column and a circular steel tube concrete column, the outer side of the rectangular steel tube concrete column and the upper end of the circular steel tube concrete column are both installed with connecting plates, a connecting tube is fixedly installed between the connecting plates, the rectangular steel tube concrete column and the circular steel tube concrete column are connected through the connecting plates and the connecting tube, and the rectangular steel tube concrete column and the circular steel tube concrete column are connected to the connecting tube, and the lower part of the rectangular steel tube concrete column is located in the connecting tube, the outer side of the connecting plate is evenly installed with steel beams, and the connecting tube An inner partition is installed inside, and the inner partition is located in the middle position of the circular steel tube concrete column. When in use, the rectangular steel tube concrete column, the circular steel tube concrete column, the connecting plate, the connecting tube, the steel beam and the inner partition are first welded and fixed in the factory according to actual use conditions, and then the welded structure is transported to the place of use, and then the structure is fixed at the place of use, and then concrete is injected into it. After drying, the circular tube column can be transformed into a rectangular tube column, thereby ensuring the aesthetics and facilitating subsequent connections. At the same time, welding is performed in advance in the factory to facilitate use by on-site workers, reduce the difficulty of operation, and save construction time.
[0005] Furthermore, in order to inject concrete into the circular steel tube concrete column and the connecting tube, grouting holes are opened on both sides of the connecting plate. The circular steel tube concrete column is connected to the external environment through the grouting holes, and the diameter of the grouting holes is 300 mm.
[0006] Furthermore, in order to facilitate the observation of the concrete pouring situation, grouting holes are evenly opened on the connecting plate. The grouting holes are located on both sides of the grouting hole, and the grouting holes are connected to the interior of the connecting tube. The diameter of the grouting holes is 50 mm.
[0007] Furthermore, in order to improve the strength of the rectangular concrete-filled steel tube column, a web is fixedly installed inside the rectangular concrete-filled steel tube column, and the web is fixedly connected to the inner partition.
[0008] Furthermore, in order to facilitate the connection between the rectangular steel tube concrete column and the external building, reinforcing plates are fixedly installed at the upper four corners of the rectangular steel tube concrete column, and the reinforcing plates are fixedly connected to the external building.
[0009] Furthermore, in order to facilitate fixing the structure at the place of use, the steel beam is in the shape of an I-beam, and the steel beam is connected to the external building through high-strength bolts, and ribs are evenly arranged on both sides of the steel beam.
[0010] Furthermore, in order to improve the efficiency of use and the accuracy of construction, the rectangular steel tube concrete column, the circular steel tube concrete column and the connecting plate are welded together after being spliced in an external factory, and the steel beam and the connecting plate are welded together in an external factory.
[0011] The technical effects and advantages of this utility model are as follows: by pre-welding in the project, it only needs to be fixed at the place of use when in use. While the connection is firm, the complexity of the user's work is reduced, the user is convenient to operate, and the quality of construction is ensured, avoiding technical problems of structural safety caused by excessive construction complexity and inability to ensure construction quality. BRIEF DESCRIPTION OF THE DRAWINGS
[0012] Figure 1 It is a schematic diagram of the overall structure of the utility model;
[0013] Figure 2 Practical Figure 1 A half-section view with DD as the section;
[0014] Figure 3 Practical Figure 1 A half-section view with EE as the section;
[0015] Figure 4 Practical Figure 1 A half-section view with FF as the section;
[0016] In the figure: 1. Rectangular steel tube concrete column; 2. Circular steel tube concrete column; 3. Connecting plate; 4. Connecting tube; 5. Steel beam; 6. Inner partition; 7. Grouting hole; 8. Grouting hole; 9. Web; 10. Reinforcement plate. DETAILED DESCRIPTION
[0017] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.
[0018] See also Figures 1-4 As shown, a connection node for converting a circular tubular column of a super high-rise structure into a rectangular steel tubular column comprises a rectangular steel tubular concrete column 1 and a circular steel tubular concrete column 2. Connecting plates 3 are installed on the outer side of the rectangular steel tubular concrete column 1 and the upper end of the circular steel tubular concrete column 2. Connecting tubes 4 are fixedly installed between the connecting plates 3. The rectangular steel tubular concrete column 1 and the circular steel tubular concrete column 2 are connected by the connecting plates 3 and the connecting tube 4. The rectangular steel tubular concrete column 1 and the circular steel tubular concrete column 2 are connected to the connecting tube 4. The lower part of the rectangular steel tubular concrete column 1 is located in the connecting tube 4. Steel beams 5 are evenly installed on the outer side of the connecting plates 3. An inner partition 6 is installed inside the connecting tube 4. The inner partition 6 is located in the middle position of the circular steel tube concrete column 2. When in use, the rectangular steel tube concrete column 1, the circular steel tube concrete column 2, the connecting plate 3, the connecting tube 4, the steel beam 5 and the inner partition 6 are first welded and fixed in the factory according to actual usage conditions, and then the welded structure is transported to the place of use, and then the structure is fixed at the place of use, and then concrete is injected into it. After drying, the circular tube column can be transformed into a rectangular tube column, thereby ensuring the aesthetics and facilitating subsequent connections. At the same time, welding is performed in advance in the factory to facilitate use by on-site workers, reduce the difficulty of operation, and save construction time.
[0019] The steel beam 5 is in the shape of an I-beam, and is connected to the external building by high-strength bolts. Ribs are evenly arranged on both sides of the steel beam 5. When in use, the steel beam 5 adopts an I-shaped structural design. This shape not only provides greater bending strength and rigidity, but also effectively reduces its own weight. It is firmly connected to the external building by high-strength bolts, ensuring the stability and safety of the entire structural system. The ribs evenly arranged on both sides further enhance the bearing capacity and stability of the steel beam 5, so that it can better disperse the pressure when subjected to external force, avoid local deformation or damage, and thus improve the durability and reliability of the overall structure.
[0020] The rectangular steel tube concrete column 1 is fixedly installed with a web 9 inside, and the web 9 is fixedly connected to the inner partition 6. The four upper corners of the rectangular steel tube concrete column 1 are fixedly installed with a reinforcing plate 10, and the reinforcing plate 10 is fixedly connected to the external building. When in use, the rectangular steel tube concrete column 1 is fixedly installed with a web 9 inside. This design not only enhances the overall strength and stability, but also improves its shear resistance. The fixed connection between the web 9 and the inner partition 6 further optimizes the internal structure, making the stress distribution more uniform. Reinforcing plates 10 are fixedly installed at the four upper corners of the rectangular steel tube concrete column 1. These reinforcing plates 10 are firmly connected to the external building through high-strength bolts, which effectively disperses the load from the upper structure and enhances the seismic performance and bearing capacity of the entire system.
[0021] Grouting holes 7 are provided on both sides of the connecting plate 3. The circular steel tube concrete column 2 is connected to the external environment through the grouting holes 7. Grouting holes 8 are evenly provided on the connecting plate 3. The grouting holes 8 are located on both sides of the grouting holes 7, and the grouting holes 8 are connected to the interior of the connecting tube 4. The diameter of the grouting holes 7 is 300mm, and the diameter of the grouting holes 8 is 50mm. When in use, grouting holes 7 are provided on both sides of the connecting plate 3. These holes have a diameter of 300mm and are used to connect the circular steel tube concrete column 2 with the external environment so as to pour concrete into the interior during construction. At the same time, grouting holes 8 are evenly distributed on the connecting plate 3, with a diameter of 50mm, located on both sides of the grouting holes 7, and connected to the interior of the connecting tube 4. This design allows that during the grouting process, when the internal pressure increases, excess slurry can be discharged through the grouting holes 8, thereby ensuring that the grouting operation proceeds smoothly without causing structural damage or deformation due to excessive internal pressure.
[0022] The rectangular steel tube concrete column 1 is spliced with the circular steel tube concrete column 2 and the connecting plate 3 and then welded together in an external factory. The steel beam 5 and the connecting plate 3 are welded together in an external factory. When in use, the rectangular steel tube concrete column 1 is spliced with the circular steel tube concrete column 2 and the connecting plate 3 and welded together in an external factory, which ensures the structural strength and stability and is convenient for users.
[0023] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above and that the present invention can be implemented in other specific forms without departing from the spirit or essential characteristics of the present invention. Therefore, the embodiments should be considered in all respects as illustrative and non-restrictive, and the scope of the present invention is defined by the appended claims, not the foregoing description, and all variations within the meaning and range of equivalents of the claims are intended to be encompassed within the present invention. Any reference sign in a claim should not be construed as limiting the claim to which it relates.
[0024] In addition, it should be understood that although this specification is described in terms of implementation methods, not every implementation method contains only one independent technical solution. This narrative method of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment can also be appropriately combined to form other implementation methods that can be understood by those skilled in the art.
Claims
1. A connection node for converting a circular tubular column into a rectangular steel tubular column in a super high-rise structure, comprising a rectangular steel tubular concrete column (1) and a circular steel tubular concrete column (2), characterized in that: The outer side of the rectangular steel tube concrete column (1) and the upper end of the circular steel tube concrete column (2) are both installed with connecting plates (3), and a connecting tube (4) is fixedly installed between the connecting plates (3). The rectangular steel tube concrete column (1) and the circular steel tube concrete column (2) are connected through the connecting plates (3) and the connecting tube (4), and the rectangular steel tube concrete column (1) and the circular steel tube concrete column (2) are connected to the connecting tube (4), and the lower part of the rectangular steel tube concrete column (1) is located in the connecting tube (4). Steel beams (5) are evenly installed on the outer side of the connecting plates (3), and an inner partition (6) is installed inside the connecting tube (4). The inner partition (6) is located in the middle position of the circular steel tube concrete column (2).
2. The connection node for converting a circular tubular column into a rectangular steel tubular column in a super high-rise structure according to claim 1, characterized in that: Grouting holes (7) are provided on both sides of the connecting plate (3), and the circular steel tube concrete column (2) is connected to the external environment through the grouting holes (7).
3. The connection node for converting a circular tubular column into a rectangular steel tubular column in a super high-rise structure according to claim 2, characterized in that: Grouting holes (8) are evenly formed on the connecting plate (3), the grouting holes (8) are located on both sides of the grouting hole (7), and the grouting holes (8) are communicated with the interior of the connecting tube (4).
4. The connection node for converting a circular tubular column into a rectangular steel tubular column in a super high-rise structure according to claim 3, characterized in that: The diameter of the grouting hole (7) is 300 mm, and the diameter of the grouting hole (8) is 50 mm.
5. The connection node for converting a circular tubular column into a rectangular steel tubular column in a super high-rise structure according to claim 1, characterized in that: A web (9) is fixedly installed inside the rectangular steel tube concrete column (1), and the web (9) is fixedly connected to the inner partition (6).
6. The connection node for converting a circular tubular column into a rectangular steel tubular column in a super high-rise structure according to claim 1, characterized in that: Reinforcement plates (10) are fixedly installed at the four upper corners of the rectangular steel tube concrete column (1), and the reinforcement plates (10) are fixedly connected to the external building.
7. The connection node for converting a circular tubular column into a rectangular steel tubular column in a super high-rise structure according to claim 1, characterized in that: The steel beam (5) is in an I-shape, and the steel beam (5) is connected to the external building via high-strength bolts. Ribs are evenly arranged on both sides of the steel beam (5).
8. The connection node for converting a circular tubular column into a rectangular steel tubular column in a super high-rise structure according to claim 1, characterized in that: The rectangular steel tube concrete column (1), the circular steel tube concrete column (2) and the connecting plate (3) are welded together after being spliced in an external factory, and the steel beam (5) and the connecting plate (3) are welded together in an external factory.