Beam steel bar and section steel column locking screw type connecting structure
By adopting a lock-screw-type connection structure at the connection between steel bars and steel concrete columns, the problem of difficult welding quality and low construction efficiency is solved, and quick plug-in installation is achieved, which improves construction safety and connection reliability.
Patent Information
- Application Number
- CN202422211295.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-10
- Publication Date
- 2025-06-27
- Estimated Expiration
- 2034-09-10
AI Technical Summary
In the prior art, the welding quality of steel bars and steel concrete columns is difficult to control, the welding time is long and it is easy to cause stress concentration problems, resulting in limited construction efficiency and safety.
The lock-screw-type connection structure is adopted, and the square teeth are meshed and fixed with the steel wire port through the limiting pressure spring and the groove shell to realize the quick plug-in installation of beam steel bars and steel columns, avoiding the welding process.
It improves welding speed and quality, simplifies construction operations, enhances construction safety, avoids stress concentration problems, and ensures the reliability of connections.
Smart Images
Figure CN223034185U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of building structures, in particular to a lock-screw type connection structure between beam steel bars and steel columns. Background Art
[0002] The main structure of steel reinforced concrete is composed of columns and beams made of steel, thus forming a steel skeleton. These steels have high tensile strength and flexural strength. Concrete is poured on the steel skeleton to form an integral structure that works together with the steel; concrete has high compressive strength and can effectively resist pressure. The steel reinforced concrete structure combines the advantages of steel and concrete, has high load-bearing capacity and seismic performance. In addition, the construction technology of steel reinforced concrete is relatively simple, and the way of prefabricating steel skeletons in factories can be adopted to shorten the on-site construction time. The steel reinforced concrete structure has good integrity and is conducive to meeting the building requirements of large spans and large spaces.
[0003] In a steel reinforced concrete frame structure, some reinforced concrete beam steel bars need to be connected to steel reinforced concrete columns. In the past, the conventional method was to weld the steel bars to the corbels of the steel reinforced concrete columns or directly to the steel columns. However, during the construction process, it is difficult to control the welding quality, the welding time is long, and welding will cause problems such as stress concentration.
[0004] Therefore, it is urgent to study a connection structure between beam steel bars and steel columns that can improve the welding speed and welding quality. Content of the Utility Model
[0005] The purpose of the utility model is to overcome the defects of the above-mentioned existing technologies and provide a lock-screw type connection structure between beam steel bars and steel columns. The utility model belongs to a mechanical connection. Through the limit compression spring and the groove shell, the square teeth are meshed and fixed with the steel bar thread. The force-bearing structure is clear, the construction operation is convenient, and it is a quick-insert installation, and the installation speed is much faster than welding.
[0006] The purpose of the utility model can be realized by the following technical solutions:
[0007] The utility model provides a lock-screw type connection structure between beam steel bars and steel columns, which includes a steel bar thread and a lock-screw clamp. The steel bar thread is sleeved on one end of the beam steel bar, and the lock-screw clamp is used to fix the beam steel bar and the steel column;
[0008] The lock-screw clamp includes a groove shell, square teeth, and a limit spring. One end of the limit spring is fixed in the groove shell, and the other end is fixed on the square teeth. The square teeth are fixed on the groove shell. The square teeth are used to be matched and connected with the steel bar thread to realize the lock-screw type connection between the beam steel bar and the steel column.
[0009] Furthermore, there are two limiting springs and two square teeth. After a limiting spring and a square tooth are fixedly connected, they are arranged on one side of the groove housing.
[0010] Furthermore, sawtooth teeth are provided on the outer ring of the steel bar thread, and the sawtooth teeth are in mating connection with the square teeth.
[0011] Furthermore, the number of teeth of the sawtooth teeth is the same as that of the square teeth.
[0012] Furthermore, the lock screw fixture is fixed on the steel bracket, and multiple lock screw fixtures are fixedly arranged side by side on the steel bracket.
[0013] Furthermore, the steel bracket is welded to the profiled steel column.
[0014] Furthermore, there are two steel brackets. The two steel brackets are respectively welded to the profiled steel column in parallel, and a reinforcing rib is welded between the two steel brackets.
[0015] Furthermore, the steel bracket includes an upper flange, a lower flange, a web and a stiffening rib;
[0016] The upper flange and the lower flange are respectively welded to the profiled steel column. One end of the stiffening rib is welded to the profiled steel column, and the other end is welded to the upper flange. The stiffening rib is used to clamp the lock screw fixture;
[0017] The side of the web is welded to the profiled steel column, and both ends of the web are respectively welded to the upper flange and the lower flange.
[0018] Furthermore, the lock screw fixture is of a symmetric structure.
[0019] Furthermore, concrete is poured outside the beam steel bars to form a concrete beam.
[0020] Compared with the prior art, the utility model has the following advantages and beneficial effects:
[0021] 1. In the lock screw type fixture of the utility model, through the limiting compression spring and the groove housing, the square tooth is meshed and fixed with the steel bar thread. The structure has clear force and convenient construction operation. It is a quick insertion type installation, and the installation speed is much faster than welding.
[0022] 2. The shape structure of the square tooth of the lock screw type fixture in the utility model determines that once the steel bar is inserted and engaged, it cannot be reversely pulled out, and the quality of the installation connection is reliable.
[0023] 3. During the construction and installation process of the utility model, there is no need for electric operations such as welding, which improves the construction safety. Moreover, there is no high-temperature welding process, thus avoiding the problem of steel bar stress concentration and improving the reliability of the steel bar. Description of the Drawings
[0024] Figure 1It is a top view of a locking screw connection structure between beam steel bars and steel shape columns;
[0025] Figure 2 It is a front view of a locking screw connection structure between beam steel bars and steel shape columns;
[0026] Figure 3 It is a right view of a locking screw connection structure between beam steel bars and steel shape columns;
[0027] Figure 4 It is a schematic diagram of the separated state of the steel bar and the locking screw in Embodiment 1;
[0028] Figure 5 It is a schematic diagram of the connected state of the steel bar and the locking screw in Embodiment 1;
[0029] Figure 6 It is a right view of the locking screw fixture in Embodiment 1.
[0030] Marking description in the figure:
[0031] 1 - Concrete column, 2 - Steel shape column, 3 - Steel corbel, 4 - Concrete beam, 5 - Locking screw fixture, 6 - Steel bar, 17 - Groove shell, 18 - Square tooth, 19 - Limit spring, 20 - Steel bar thread, 21 - Reinforcing rib. Specific implementation manners
[0032] The following further elaborates on the specific implementation manners of the present utility model through embodiments. These embodiments are implemented on the premise of the solution described in the present utility model, and detailed implementation manners and specific operation processes are given. However, the protection scope of the present utility model is not limited to the following embodiments.
[0033] The following further elaborates on the present utility model in combination with the attached drawings and specific embodiments. Features such as component models, material names, connection structures, preparation means, materials, structures, or composition ratios that are not clearly described in this technical solution are regarded as common technical features disclosed in the prior art.
[0034] Embodiment 1
[0035] This embodiment provides a locking screw connection structure between beam steel bars and steel shape columns, as Figures 1 to 3 shown, including a steel bar thread 20 and a locking screw fixture 5. One end of the beam steel bar 6 is sleeved with a steel bar thread 20, and a locking screw fixture 5 for fixation is provided between the beam steel bar 6 and the steel shape column 2.
[0036] As Figures 4 to 6As shown, the lock screw fixture 5 includes a groove shell 17, square teeth 18, and a limit spring 19. One end of the limit spring 19 is fixed inside the groove shell 17, and the other end is fixed on the square teeth 18. The square teeth 18 are fixed on the groove shell 17. The outer ring of the thread 20 of the steel bar 6 is provided with sawtooth teeth, and the sawtooth teeth are cooperatively connected with the square teeth 18, and the number of teeth of the sawtooth teeth is the same as that of the square teeth 18, as Figure 4 and Figure 5 shown, so as to realize the lock screw type connection between the beam steel bar 6 and the profiled steel column 2.
[0037] As Figure 4 shown, the lock screw fixture 5 is a symmetric structure. There are two limit springs 19 and two square teeth 18. After a limit spring 19 and a square tooth 18 are fixedly connected, they are arranged on one side of the groove shell 17. The lock screw fixture 5 is fixed on the steel bracket 3, and multiple lock screw fixtures 5 are fixedly arranged side by side on the steel bracket 3. There are two steel brackets 3, and the two steel brackets 3 are respectively welded to the profiled steel column 2 in parallel, and a reinforcing rib 21 is welded between the two steel brackets 3.
[0038] The steel bracket 3 includes an upper flange, a lower flange, a web and a stiffening rib; the upper flange and the lower flange are welded to the profiled steel column 2. One end of the stiffening rib is welded to the profiled steel column 2, and the other end is welded to the upper flange. The stiffening rib is used to clamp the lock screw fixture 5. The side of the web is welded to the profiled steel column 2, and both ends of the web are respectively welded to the upper flange and the lower flange. Concrete is poured outside the beam steel bar 6 to form a concrete beam 4. Since the beam steel bar 6 at the connection between the concrete beam 4 and the profiled steel column 2 is in a tensile state, there is a tendency for the beam steel bar 6 to pull the lock screw fixture 5. The stiffening rib is welded to the steel bracket, preventing the movement of the steel bar and the lock screw fixture 5, and forming a clamping state.
[0039] The lock screw type connection structure in this embodiment can withstand the tensile force that fully exerts the tensile performance of the connecting steel bar and meet the tensile force of the ultimate strength of the steel bar. Tables 1 and 2 are examples of the steel bar requirements and the dimensions of the lock screw types applied. The dimensions of the materials can ensure that the materials play a force-bearing role.
[0040] According to the provisions of Article 4.2.3 of the "Code for Design of Concrete Structures" GB 50010-2010 (2015 Edition), for the design value of the tensile strength fy and the standard value of the ultimate strength fstk of ordinary steel bars and common steel bars, different lock screw types are applied to different steel bars, and the results are shown in Table 1.
[0041] Table 1 Design value of tensile strength fy and standard value of ultimate strength fstk of ordinary steel bars and common steel bars
[0042]
[0043] The component dimensions of the lock screw type connection structure in this embodiment are shown in Table 2.
[0044] Table 2 Component Dimension Table of the Locking Screw Connection Structure
[0045]
[0046] The above description of the embodiments is for the convenience of those of ordinary skill in the art to understand and use the utility model. It is obvious that those skilled in the art can easily make various modifications to these embodiments and apply the general principles described herein to other embodiments without creative efforts. Therefore, the utility model is not limited to the above embodiments, and the improvements and modifications made by those skilled in the art without departing from the scope of the utility model according to the disclosure of the utility model should be within the protection scope of the utility model.
Claims
1. A locking screw connection structure between beam reinforcement and steel column, characterized in that: It comprises a steel bar thread (20) and a locking screw clamp (5), wherein the steel bar thread (20) is sleeved on one end of a beam steel bar (6), and the locking screw clamp (5) is used to fix the beam steel bar (6) and the profiled steel column (2); The locking screw clamp (5) comprises a groove shell (17), a square tooth (18), and a limit spring (19). One end of the limit spring (19) is fixed in the groove shell (17), and the other end is fixed on the square tooth (18). The square tooth (18) is fixed on the groove shell (17). The square tooth (18) is used to match and connect with a steel bar thread (20) to achieve a locking screw connection between the beam steel bar (6) and the steel column (2).
2. A beam reinforcement and steel column locking screw connection structure according to claim 1, characterized in that: The limit spring (19) and the square tooth (18) are both provided with two, and one limit spring (19) and one square tooth (18) are fixedly connected and arranged on one side of the slot shell (17).
3. The locking screw connection structure of beam reinforcement and steel column according to claim 1 is characterized in that: The outer ring of the steel bar thread (20) is provided with saw-shaped teeth, and the saw-shaped teeth are matched and connected with the square teeth (18).
4. The locking screw connection structure of beam reinforcement and steel column according to claim 3 is characterized in that: The number of teeth of the saw-shaped teeth is the same as the number of teeth of the square teeth (18).
5. The locking screw connection structure of beam reinforcement and steel column according to claim 1 is characterized in that: The locking screw clamp (5) is fixed on the steel bracket (3), and a plurality of locking screw clamps (5) are fixed in parallel on the steel bracket (3).
6. The locking screw connection structure of beam reinforcement and steel column according to claim 5 is characterized in that: The steel bracket (3) is welded to the steel column (2).
7. The locking screw connection structure of beam reinforcement and steel column according to claim 5 is characterized in that: The steel brackets (3) are provided with two, and the two steel brackets (3) are respectively welded in parallel to the steel column (2), and a reinforcing rib (21) is welded between the two steel brackets (3).
8. The locking screw connection structure of beam reinforcement and steel column according to claim 5 is characterized in that: The steel corbel (3) comprises an upper flange, a lower flange, a web and stiffening ribs; The upper flange and the lower flange are respectively welded to the steel column (2); one end of the stiffening rib is welded to the steel column (2) and the other end is welded to the upper flange; the stiffening rib is used to clamp the locking screw fixture (5); The side edge of the web is welded to the steel column (2), and the two ends of the web are respectively welded to the upper flange and the lower flange.
9. The locking screw connection structure of beam reinforcement and steel column according to claim 8, characterized in that: The screw locking fixture (5) is a symmetrical structure.
10. The locking screw connection structure of beam reinforcement and steel column according to claim 1, characterized in that: Concrete is poured outside the beam reinforcement (6) to form a concrete beam (4).