Complex steel bar node stress main bar connecting structure for subway station

Abstract

The utility model discloses a subway station complex reinforcement node stress main reinforcement connecting structure which comprises a U-shaped reinforcement and a main reinforcement, the U-shaped reinforcement and the main reinforcement are connected in a cross mode through a fixing structure, the fixing structure comprises a vertical column and a steel plate, the vertical column hoops the main reinforcement, the vertical column is fixed to the steel plate attached to the U-shaped reinforcement, and the U-shaped reinforcement and the main reinforcement are connected in a cross mode. The problems of dislocation, uneven stress, insufficient installation precision and the like existing in steel bar connection in the prior art are effectively improved, efficient and reliable connection between the U-shaped bar and the main bar can be achieved, firm connection between the U-shaped bar and the main bar is ensured, uniform force transmission is effectively achieved through the optimized structural design, and the service life of the U-shaped bar and the main bar is prolonged. The method is crucial in a complex construction scene with large bearing capacity of a steel bar structure, and the construction speed is remarkably increased. The construction period is shortened, and the safety of a construction site and the controllability of construction quality are improved.

Description

Technical Field

[0001] This utility model belongs to the field of prefabricated underground structure engineering, specifically relating to a complex steel reinforcement node connection structure for subway stations. Background Technology

[0002] With the rapid development of my country's construction industry, prefabricated assembly structure technology has been widely promoted and applied. The advancement of building industrialization has not only changed traditional construction methods but also effectively improved construction efficiency, enhanced construction quality, shortened construction periods, and reduced construction costs. The core concept of prefabricated assembly structures lies in the factory production of prefabricated components, which are then rapidly assembled on-site. This reduces the large amount of cast-in-place concrete and manual labor required in traditional construction, significantly improving the standardization and normalization of building projects.

[0003] Currently, the connection methods for prefabricated steel bars mainly rely on on-site binding and welding processes. This traditional connection method is not only cumbersome to construct, but also easily affected by limitations in construction space, operational precision, and the experience level of personnel, leading to unstable steel bar connection quality. Especially when binding or welding is not standardized, the steel bars are prone to misalignment under stress, thereby affecting the structural performance of the entire structure. Summary of the Invention

[0004] This utility model is proposed to solve the problems existing in the prior art, and its purpose is to provide a connection structure for the main reinforcing bars of complex steel bar nodes in subway stations.

[0005] The technical solution of this utility model is: a connection structure for the main reinforcing bars of complex steel bar nodes in subway stations, including U-shaped bars and main reinforcing bars. The U-shaped bars and main reinforcing bars are connected in a cross shape by a fixing structure. The fixing structure includes vertical columns and steel plates. The vertical columns tighten the main reinforcing bars and are fixed to the steel plates that are in contact with the U-shaped bars, thereby realizing the cross connection between the U-shaped bars and the main reinforcing bars.

[0006] Furthermore, the main reinforcement is connected to the bottom inflection point of the U-shaped reinforcement and the inner wall of the U-shaped reinforcement.

[0007] Furthermore, a groove is formed in the steel plate, and the groove contacts the bottom of the U-shaped rib or the outer wall of the U-shaped rib.

[0008] Furthermore, the groove in the steel plate is an arc-shaped bottom groove.

[0009] Furthermore, each fixed structure includes four vertical columns, which are arranged in pairs.

[0010] Furthermore, the vertical column is L-shaped, with the long arm section of the vertical column forming an external thread and the short arm section of the vertical column forming an inwardly concave arc-shaped groove.

[0011] Furthermore, in each set of vertical columns, two vertical columns are joined together to form a U-shape, and the concave arc grooves of the two vertical columns fit into the outer wall of the main reinforcement after being joined together.

[0012] Furthermore, the two sets of vertical columns are located on the left and right sides of the U-shaped reinforcement, and the main reinforcement passes through the two sets of vertical columns and the U-shaped reinforcement.

[0013] Furthermore, the four vertical columns are locked and fixed after passing through the steel plate, thereby fixing the U-shaped ribs and main ribs.

[0014] The beneficial effects of this utility model are as follows:

[0015] This invention effectively improves upon existing technologies that suffer from misalignment, uneven stress distribution, and insufficient installation precision in rebar connections. It enables efficient and reliable connection between U-shaped bars and main bars, ensuring a strong bond between them. Furthermore, through optimized structural design, it effectively achieves uniform force transmission, which is crucial in complex construction scenarios where rebar structures have high load-bearing capacity.

[0016] In the construction of large-scale infrastructure such as subway stations, the overall stability of the structure directly depends on the quality of the steel reinforcement joints. This utility model's fixed connection component, through precise joint design, effectively avoids misalignment, slippage, or loosening of the steel reinforcement under stress.

[0017] Traditional rebar connection methods typically rely on on-site tying or welding. These methods are complex and easily affected by limited construction space, complex construction environments, and insufficient installation precision, thus reducing the structural load-bearing capacity. This invention's fixed connection component adopts a modular connection method, achieving rapid and standardized installation through prefabricated connectors. This significantly reduces the impact of construction errors and human error on structural performance, improving overall construction quality. By reducing human intervention in traditional tying and welding steps, the precision of node connections is greatly improved, thereby significantly reducing uneven structural stress caused by insufficient installation precision or construction errors.

[0018] Thanks to the optimized design of this fixed connection component, the joint connections of the reinforcing bars are more efficient throughout the construction process, significantly improving construction speed. This not only reduces the construction period but also enhances on-site safety and the controllability of construction quality. In large prefabricated structures such as subway stations, the joint connections of the reinforcing bars can better resist external forces, ensuring the overall stability and safety of the structure. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the layout of this utility model;

[0020] Figure 2This is a schematic diagram of the connection of the fixing components in this utility model;

[0021] Figure 3 This is a front view of the fixing component in this utility model;

[0022] Figure 4 This is a left view of the fixing component in this utility model;

[0023] Figure 5 This is a schematic diagram of the steel plate in this utility model;

[0024] in:

[0025] 1. U-shaped reinforcement 2. Main reinforcement

[0026] 3. Vertical columns; 4. Steel plates

[0027] 5 Nuts 6 Vertical column grooves

[0028] 7. Steel plate groove; 8. Cross-shaped through groove. Detailed Implementation

[0029] The present invention will now be described in detail with reference to the accompanying drawings and embodiments:

[0030] like Figures 1 to 5 As shown, a complex steel reinforcement node connection structure for a subway station includes a U-shaped bar 1 and a main bar 2. The U-shaped bar 1 and the main bar 2 are connected in a cross shape by a fixing structure. The fixing structure includes a vertical column 3 and a steel plate 4. The vertical column 3 tightens the main bar 2 and is fixed to the steel plate 4 that is in contact with the U-shaped bar 1, thus realizing the cross connection between the U-shaped bar 1 and the main bar 2.

[0031] The main reinforcement 2 is connected to the bottom inflection point of the U-shaped reinforcement 1 and the inner wall of the U-shaped reinforcement 1.

[0032] A groove 7 is formed in the steel plate 4, and the groove 7 contacts the bottom of the U-shaped rib 1 or the outer wall of the U-shaped rib 1.

[0033] The groove 7 in the steel plate is an arc-shaped bottom groove.

[0034] Each fixed structure includes four vertical columns 3, which are arranged in pairs.

[0035] The vertical column 3 is L-shaped, with the long arm section of the vertical column 3 forming an external thread and the short arm section of the vertical column 3 forming an inwardly concave arc-shaped groove.

[0036] In each set of vertical columns 3, two vertical columns 3 are joined together to form a U-shape, and the concave arc grooves of the two vertical columns 3 are joined together to fit against the outer wall of the main reinforcement 2.

[0037] Two sets of vertical columns 3 are located on the left and right sides of the U-shaped reinforcement 1, and the main reinforcement 2 passes through the two sets of vertical columns 3 and the U-shaped reinforcement 1.

[0038] The four vertical columns 3 are locked and fixed after passing through the steel plate 4, thereby fixing the U-shaped ribs 1 and the main ribs 2.

[0039] Specifically, after the threaded section of the vertical column 3 passes through the steel plate 4, it is fixed by screwing on the nut 5.

[0040] Specifically, the spacing between the two sets of vertical columns 3 is the same as the outer diameter of the U-shaped reinforcement 1.

[0041] Specifically, such as Figure 1 As shown, adjacent U-shaped reinforcing bars 1 are arranged in an open and staggered manner, that is, the openings of adjacent U-shaped reinforcing bars 1 are opposite to each other.

[0042] In one embodiment, a cross-shaped through groove 8 is formed in the steel plate 4, and the threaded section of the vertical column 3 passes through the cross-shaped through groove 8. The width of the cross-shaped through groove 8 is slightly larger than the outer diameter of the threaded section of the vertical column 3.

[0043] As an implementation variation, four through holes can also be formed in the steel plate 4, through which the threaded section of the vertical column 3 passes.

[0044] Specifically, the vertical column groove 6 and the steel plate groove 7 provide surface-to-surface contact fixing, enabling the fixing structure and the U-shaped reinforcement 1 and main reinforcement 2 to be better connected and fixed, ensuring that the connection node can withstand forces from different directions and maintain stability under various construction conditions.

[0045] Specifically, the fixing structure includes vertical columns 3, steel plates 4, nuts 5, vertical column grooves 6, and steel plate grooves, which can effectively ensure the accuracy and stability of the cross-shaped connections between the reinforcing bars. During the stress process, the U-shaped bars 1 and the main bars 2 will not misalign or slip, which is crucial for the stability of the prefabricated steel structure. The combination of the cross-shaped staggered design and the fixing connection components makes the force transmission in the reinforcing bar network more continuous and uniform, avoiding stress concentration problems caused by excessive local stress, thereby improving the overall structural performance.

[0046] Specifically, another advantage of the aforementioned fixing structure is that it significantly reduces the difficulty of tying and welding rebar joints during on-site construction. Traditional rebar joint construction often requires a large amount of manual labor and high construction precision to ensure correct rebar connections. With this component, the assembly process of the joint is more standardized and modular, and can be completed with simple nuts and steel plates, reducing construction errors caused by human error. Thanks to the simplicity and efficiency of this component's design, it is very suitable for large-scale industrial production and can meet the needs of modern prefabricated building and infrastructure projects for efficient construction processes.

[0047] The usage and assembly process of this utility model are as follows:

[0048] a. After all U-shaped reinforcing bars 1 are inserted into the main reinforcing bars 2, at the corners of the U-shaped reinforcing bars 1, the fixing structure horizontally fixes the main reinforcing bars 2. The main reinforcing bars 2 are secured in the grooves at the top of the vertical column 3, and the U-shaped reinforcing bars 1 are secured in the grooves 7 of the steel plate. The horizontal sections of the U-shaped reinforcing bars at the corners are secured in the grooves on the side of the U-shaped fixing structure. The vertical column 3 and the steel plate 4 are fixed with nuts 5.

[0049] At the horizontal position of the U-shaped rib 1, the fixed structure vertically fixes the main rib 2. The main rib 2 is clamped in the groove at the top of the vertical column 3, and the U-shaped rib 1 is clamped in the groove 7 of the steel plate. The vertical column 3 and the steel plate 4 are fixed with nuts 5.

[0050] c. After the reinforcement nodes are fixed, proceed with the fixing connection of the next node.

[0051] The above technical solutions only embody the preferred technical solutions of this utility model. Any modifications that may be made by those skilled in the art to certain parts therein embody the principles of this invention and fall within the protection scope of this invention.

Claims

1. A complex steel reinforcement node connection structure for subway stations, comprising U-shaped bars (1) and main bars (2), characterized in that: The U-shaped reinforcement (1) and the main reinforcement (2) are connected in a cross shape by a fixed structure. The fixed structure includes a vertical column (3) and a steel plate (4). The vertical column (3) tightens the main reinforcement (2) and fixes the vertical column (3) to the steel plate (4) that is in contact with the U-shaped reinforcement (1), so as to achieve the cross connection between the U-shaped reinforcement (1) and the main reinforcement (2).

2. The complex steel reinforcement node connection structure for subway stations according to claim 1, characterized in that: The main reinforcement (2) is connected to the bottom inflection point of the U-shaped reinforcement (1) and the inner wall of the U-shaped reinforcement (1).

3. The complex steel reinforcement node connection structure for subway stations according to claim 1, characterized in that: A groove (7) is formed in the steel plate (4), and the groove (7) contacts the bottom of the U-shaped rib (1) or the outer wall of the U-shaped rib (1).

4. The complex steel reinforcement node connection structure for subway stations according to claim 3, characterized in that: The groove (7) in the steel plate is an arc-shaped bottom groove.

5. The complex steel reinforcement node connection structure for subway stations according to claim 1, characterized in that: Each fixed structure includes four vertical columns (3), which are arranged in pairs.

6. The main reinforcement connection structure for complex steel bar nodes in a subway station according to claim 5, characterized in that: The vertical column (3) is L-shaped, with the long arm section of the vertical column (3) forming an external thread and the short arm section of the vertical column (3) forming an inwardly concave arc groove.

7. The complex steel reinforcement node connection structure for subway stations according to claim 6, characterized in that: In each set of vertical columns (3), two vertical columns (3) are joined together to form a U-shape, and the concave arc grooves of the two vertical columns (3) are joined together to fit against the outer wall of the main reinforcement (2).

8. The main reinforcement connection structure for complex steel bar nodes in a subway station according to claim 7, characterized in that: Two sets of vertical columns (3) are located on the left and right sides of the U-shaped reinforcement (1), and the main reinforcement (2) passes through the two sets of vertical columns (3) and the U-shaped reinforcement (1).

9. A complex steel reinforcement node connection structure for subway stations according to claim 8, characterized in that: The four vertical columns (3) are locked and fixed after passing through the steel plate (4), thereby fixing the U-shaped reinforcement (1) and the main reinforcement (2).

Images