Composite structure of concrete column and cantilever steel beam
By adopting a corrupt column structure at the connection between concrete columns and cantilevered steel beams, using welding fixation and strengthening measures of column body sections and corrupt leg sections, the connection is not firm and construction is difficult in the prior art. Problem, achieving higher connection reliability and lower construction complexity.
Patent Information
- Application Number
- CN202421167729.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-05-27
- Publication Date
- 2025-02-14
- Estimated Expiration
- 2034-05-27
AI Technical Summary
When connecting concrete columns and cantilevered steel beams, there are problems such as insufficient number of embedded parts and insufficient bolt anchoring length when connecting concrete columns and cantilevered steel beams, resulting in high safety hazards during construction and use of cantilevered members and high construction difficulty.
The beef leg column structure is adopted, including the column section and the beef leg section. The beef leg section is welded and fixed with the cantilever steel beam. The column section is buried in the concrete column, and the connection reliability is enhanced by anti-shearing and nails.
It improves the reliability of the connection between the cantilevered steel beams and concrete columns, reduces construction difficulty, avoids quality defects and rework, and is suitable for construction with cantilever lengths of 4m or above.
Smart Images
Figure CN222477784U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to a technology in the field of building structures, in particular to a combined structure of a concrete column and a cantilevered steel beam. Background Art
[0002] In recent years, the construction industry has been booming, and the architectural shapes have become more and more diverse. People have higher and higher requirements for architectural effects, and the cantilever length of awnings or decorative components has become longer and longer. In particular, the main structure is mostly reinforced concrete structure, and the cantilever components are steel structures. The connection between the two is particularly important, but the connection between different materials has great limitations and is a weak point.
[0003] At present, the conventional practice is to use bolts to connect embedded parts. When the construction quality control is not strict, such connections often encounter the situation of insufficient number of embedded parts, insufficient bolt anchoring length, and avoiding pre-embedded parts and using post-embedded parts, which causes great safety hazards. Therefore, cantilever awnings often fall during construction and use, causing adverse effects.
[0004] In order to solve the above problems in the prior art, the present invention is provided. Utility Model Content
[0005] In view of the above-mentioned deficiencies in the prior art, the utility model proposes a combined structure of a concrete column and a cantilever steel beam, which can increase the cantilever size of the steel beam and improve the reliability of the connection between the cantilever steel beam and the concrete structure, and is particularly suitable for large cantilever steel beams without tie rods.
[0006] The utility model relates to a combined structure of a concrete column and a cantilevered steel beam, comprising:
[0007] cantilever steel beams;
[0008] Concrete columns;
[0009] The corbel column includes a column body section and a corbel section, the corbel section is welded and fixed to the cantilever steel beam, and the column body section is buried in the concrete column. The corbel column structure provides better bending and shear resistance, and improves the reliability of the connection between the large cantilever steel beam and the concrete column.
[0010] In some specific embodiments, the column body section of the corbel column is made of any one of I-beam, H-beam, square tube and rectangular tube.
[0011] In some specific embodiments, the column shaft section of the corbel column is fixed with shear studs, and the shear studs are embedded in the concrete column.
[0012] In some specific embodiments, the shear bolts are provided in at least two rows and arranged along the height direction of the column section, thereby improving the shear resistance of the column section and the concrete column joint section and improving the durability of the entire structure; in the horizontal direction, one row of the two rows of shear bolts is arranged close to the cantilever steel beam, and the other row is arranged away from the cantilever steel beam.
[0013] In some specific embodiments, the column body section of the corbel column is made of I-beam, and the shear bolts are fixedly connected to the wing plates of the I-beam.
[0014] In some specific embodiments, the column section of the corbel column adopts I-beams; the upper flange and / or lower flange of the corresponding corbel section are respectively provided with stiffeners, and the stiffeners connect the proximal flange and the distal flange of the column section, the distal flange of the column section is the end of the column section away from the cantilever steel beam, and the proximal flange of the column section is the end of the column section close to the cantilever steel beam.
[0015] In some specific embodiments, the corbel section of the corbel column partially extends out of the concrete column. Preferably, the corbel section can be I-shaped or L-shaped.
[0016] Compared with the prior art, the utility model has the following technical effects:
[0017] 1) The corbel column structure provides better bending and shear resistance, improves the reliability of the connection between the cantilever steel beam and the concrete column, and does not require a large number of bolt embedded parts and tie rod structures, which reduces the construction difficulty of large cantilever steel beams and can be used for the construction of cantilever steel beams with a cantilever length of 4m or more;
[0018] 2) The corbel column can be prefabricated and embedded in place at one time, which reduces the difficulty of on-site process control and improves the construction quality. It avoids quality defects caused by inadequate embedding of embedded parts and the need for rework such as reinforcement and reinforcement in the later stage.
[0019] 3) Materials are easy to obtain, avoiding the use of complex and expensive special building materials, achieving material saving effects, reducing the adverse effects of production, transportation and construction, and facilitating the manufacture of environmentally friendly green buildings. BRIEF DESCRIPTION OF THE DRAWINGS
[0020] Figure 1 is a schematic diagram of the cross-sectional structure of a horizontal cross section in Example 1;
[0021] Figure 2 This is a schematic diagram of the structure in the AA direction in Example 1;
[0022] Figure 3 It is a top view of the column shaft section of the corbel column in Example 1;
[0023] In the figure: 100, cantilever steel beam; 200, concrete column; 300, corbel column; 301, column section; 302, corbel section; 303, stiffener; 304, proximal wing plate; 305, distal wing plate; 400, shear stud. DETAILED DESCRIPTION
[0024] The utility model is described in detail below in conjunction with the accompanying drawings and specific implementation methods.
[0025] Example 1
[0026] like Figure 1 , Figure 2 and Figure 3 As shown, this embodiment includes a cantilever steel beam 100 , a concrete column 200 and a corbel column 300 .
[0027] The corbel column 300 includes a column shaft section 301 and a corbel section 302 . The column shaft section 301 is buried in the concrete column 200 , and a portion of the corbel section 302 is buried in the concrete column 200 , and a portion of the corbel section 302 protrudes out of the concrete column 200 .
[0028] One end of the corbel section 302 is welded and fixed to the cantilever steel beam 100 , and the other end is welded and fixed to the column section 301 .
[0029] The column body section 301 of the corbel column 300 is made of I-beam, a wing plate of the I-beam is welded to the corbel section, and the width of the corbel section is preferably consistent with the width of the wing plate.
[0030] The column section 301 of the corbel column 300 is fixed with shear studs 400 on the wing plates, and the shear studs 400 are buried in the concrete column. The shear studs 400 are arranged in at least one row on each of the two wing plates of the column section 301, and are arranged along the height direction of the column section; in the horizontal direction, one of the two rows of shear studs 400 is arranged close to the cantilever steel beam 100, and the other row is arranged away from the cantilever steel beam 100.
[0031] The column section 301 of the corbel column 300 is provided with stiffeners 303 at the upper and lower ends of the corresponding corbel section 302, respectively, and the stiffeners 303 connect the proximal wing plate 304 and the distal wing plate 305 of the column section 301; the proximal wing plate 304 of the column section, that is, the proximal flange, is arranged close to the cantilever steel beam; the distal wing plate 305 of the column section, that is, the distal flange, is arranged away from the cantilever steel beam.
[0032] This embodiment is applied in construction. Preferably, the prefabrication of the corbel column is completed at the prefabrication processing point or prefabrication processing factory. The welding is required to adopt full-mouth welding. After acceptance, it is transported to the construction area on site for pre-embedding, thereby avoiding the defects and hidden dangers caused by the on-site rush work and facilitating quality control. When the conditions are met, concrete is poured to obtain the concrete column 200, and the connection operation of the corbel column 300 and the concrete column 200 is completed. After the concrete column 200 reaches the required strength, the corbel section 302 of the corbel column 300 and the connection part of the cantilever steel beam 100 are welded, which is also full-mouth welding, and finally a combined structure of the concrete column and the cantilever steel beam is obtained.
[0033] It should be emphasized that the above are only preferred embodiments of the present invention and do not constitute any form of limitation to the present invention. Any simple modifications, equivalent changes and modifications made to the above embodiments based on the technical essence of the present invention are still within the scope of the technical solution of the present invention.
Claims
1. A combined structure of a concrete column and a cantilevered steel beam, characterized in that: include: cantilever steel beams; Concrete columns; And a corbel column; the corbel column comprises a column body section and a corbel section, the corbel section is welded and fixed to the cantilever steel beam, and the column body section is buried in the concrete column.
2. The combined structure of concrete column and cantilever steel beam according to claim 1, characterized in that: The column body section of the corbel column is made of any one of I-beam, H-beam, square tube and rectangular tube.
3. The combined structure of concrete column and cantilever steel beam according to claim 1 or 2, characterized in that: The column body section of the corbel column is fixed with shear bolts, and the shear bolts are buried in the concrete column.
4. The combined structure of concrete column and cantilever steel beam according to claim 3 is characterized in that: The shear studs are provided in at least two rows and arranged along the height direction of the column section; in the horizontal direction, one row of the two rows of shear studs is arranged close to the cantilever steel beam, and the other row is arranged away from the cantilever steel beam.
5. The combined structure of concrete column and cantilever steel beam according to claim 2 is characterized in that: The column body section of the corbel column is made of I-beam; stiffeners are respectively provided on the upper flange and / or lower flange of the corresponding corbel section, and the stiffeners connect the proximal flange and the distal flange of the column body section.
6. The combined structure of concrete columns and cantilevered steel beams according to claim 1 is characterized in that: The corbel section of the corbel column partially protrudes out of the concrete column.