Connector of rebuilding type steel structure

Abstract

The utility model belongs to the technical field of constructional engineering, and discloses a connector of a rebuilding type steel structure, which comprises four side walls and two end walls, the four side walls are sequentially connected, and the two end walls are arranged along a first direction and are connected with the four side walls; a first hole is formed in each side wall; wherein a plurality of first holes are formed in the same side wall, and the first holes are arranged in the first direction; when the reconfigurable steel structure fabricated building is assembled, the building can be assembled without welding, so that the construction difficulty of constructors is reduced, the assembly efficiency is improved, the labor cost is greatly reduced, and adverse effects caused by welding errors are reduced. Moreover, the connection mode is simple and reliable, the assembly and disassembly difficulty is low, and the assembly or disassembly efficiency can be improved.

Description

Technical Field

[0001] This utility model relates to the field of building engineering technology, and in particular to a connector for a reconstructed steel structure. Background Technology

[0002] With increasing global, and especially Chinese, demands for low-cost, high-speed, and green sustainable construction, prefabricated buildings are gaining more and more attention in the global construction industry. However, most existing prefabricated buildings suffer from low productization and component standardization from the design stage, long processing cycles, low precision, and the need for highly skilled and specialized personnel for installation. As a result, they not only fail to improve delivery speed but also generally have higher costs than traditional buildings, greatly limiting their widespread promotion and application.

[0003] First, traditional prefabricated buildings suffer from extremely low standardization of their components, especially the core structural elements related to building safety—beams, columns, and connectors—which are designed with various shapes and connection methods. The large number of non-standard and customized components results in: 1) long design cycles and complex production processes; 2) complex on-site management requiring professional personnel to mark, identify, and sort components during installation; 3) the need for prior training before each installation and the demand for specialized personnel during construction; 4) increased overall building installation time and costs. This completely fails to meet the expectations and requirements for high-speed and low-cost delivery of prefabricated buildings; 5) the inability to effectively inventory non-standard components in advance also poses a significant obstacle to rapid delivery.

[0004] Secondly, existing prefabricated buildings, especially steel-structure prefabricated buildings, still rely heavily on on-site welding, particularly during the installation of complex connection nodes. Welding not only requires skilled workers, but also faces challenges in controlling welding quality due to the unpredictable on-site environment, easily leading to welding errors or quality problems. This not only increases the uncertainty of the construction process but also prolongs the construction period, further increasing labor costs and the total project cost.

[0005] These technical deficiencies and management challenges pose significant obstacles to the promotion and popularization of existing prefabricated building systems, especially given the increasing high labor costs and green building requirements. Traditional prefabricated building technologies are unable to meet the higher demands of the social environment and the market.

[0006] Therefore, a reconstructed steel structure connector is proposed to solve the above problems. Utility Model Content

[0007] The main purpose of this utility model is to provide a connector for reconstructed steel structures, which aims to solve the problems of low universality of existing prefabricated buildings and the need for a large amount of on-site welding work, which reduces efficiency and increases costs.

[0008] To achieve the above-mentioned utility model objectives, this utility model proposes a connector for a reconstructed steel structure, the connector comprising four side walls and two end walls, the four side walls being connected sequentially, and the two end walls being arranged along a first direction and both being connected to the four side walls;

[0009] Each of the aforementioned sidewalls is provided with a first hole;

[0010] Multiple first holes are provided on the same sidewall, and the multiple first holes are arranged along the first direction.

[0011] Furthermore, the first hole is a threaded hole.

[0012] Furthermore, the first hole is a through hole.

[0013] Furthermore, each of the end walls is provided with a second hole, which is a through hole;

[0014] The same end wall is provided with four second holes, and the line connecting the four second holes forms a rectangle.

[0015] Furthermore, at least one of the sidewalls is provided with a groove, and the four sidewalls include a first sidewall, a second sidewall, a third sidewall and a fourth sidewall. The first sidewall and the third sidewall are arranged along a second direction, and the second sidewall and the fourth sidewall are arranged along a third direction. The second direction is perpendicular to the first direction, and the third direction is perpendicular to both the second direction and the first direction.

[0016] The first sidewall is provided with a first groove, which is recessed in the direction toward the third sidewall;

[0017] The third sidewall has a second groove, which is recessed in the direction toward the first sidewall.

[0018] Furthermore, the connector also includes a first connecting wall, which is located between the first groove and the second groove along the second direction, between the two end walls along the first direction, and connects the second side wall, the fourth side wall and the two end walls.

[0019] Furthermore, the connector is integrally formed by casting.

[0020] Furthermore, along the projection perpendicular to the first direction, the projections of the four sidewalls are rectangular;

[0021] The four sidewalls and two endwalls form a receiving cavity.

[0022] Furthermore, the connector also includes a second connecting wall located within the receiving cavity, the second connecting wall being situated between the two end walls along the first direction and connecting to at least two of the side walls.

[0023] Furthermore, the connector also includes a third connecting wall located within the receiving cavity, the third connecting wall being situated between the second connecting wall and one of the end walls along the first direction, and connecting the second connecting wall and at least one of the side walls.

[0024] Beneficial effects:

[0025] This utility model discloses a connector for a reconfigurable steel structure, comprising: a connector including four side walls and two end walls, the four side walls being connected sequentially, and the two end walls being arranged along a first direction and connected to the four side walls; each side wall having a first hole; wherein, multiple first holes are provided on the same side wall, and the multiple first holes are arranged along the first direction; the connector design provides high flexibility and modularity, making the design and construction of lowered slabs required for indoor wet areas and the height difference between balconies and interiors in traditional prefabricated buildings extremely simple and convenient, thereby meeting the needs of various building layouts and adapting to rapid changes in different building scales and requirements. Furthermore, this reconfigurable prefabricated steel structure can be assembled without welding, which helps reduce the construction difficulty for workers, improves assembly efficiency, greatly reduces labor costs, and minimizes the adverse effects of welding errors. Moreover, this connection method is simple and reliable, and the difficulty of assembly and disassembly is low, which helps improve assembly or disassembly efficiency. Attached Figure Description

[0026] Figure 1 This is a schematic diagram of the overall structure of a connector for a reconstructed steel structure according to an embodiment of this utility model;

[0027] Figure 2 This is a partial structural schematic diagram of a connector for a reconstructed steel structure according to an embodiment of this utility model;

[0028] Figure 3 This is a partial structural schematic diagram of a connector for a reconstructed steel structure according to an embodiment of this utility model;

[0029] Figure 4 This is a schematic diagram of the connector portion of a reconstructed steel structure according to an embodiment of this utility model;

[0030] Figure 5 This is a partial structural schematic diagram of a connector for a reconstructed steel structure according to an embodiment of this utility model.

[0031] Figure 6 This is a partial structural schematic diagram of a connector for a reconstructed steel structure according to an embodiment of this utility model;

[0032] Figure 7 This is a partial structural schematic diagram of a connector for a reconstructed steel structure according to an embodiment of this utility model;

[0033] Figure 8 This is a schematic diagram of the connector portion of a reconstructed steel structure according to an embodiment of this utility model;

[0034] Figure 9 This is a partial structural schematic diagram of a connector for a reconstructed steel structure according to an embodiment of this utility model;

[0035] in:

[0036] 100, Connector; 110, First sidewall; 120, Second sidewall; 130, Third sidewall; 140, Fourth sidewall; 200, First groove; 210, Second groove; 300, End wall; 400, First hole; 410, Second hole; 500, First connecting wall; 510, Second connecting wall; 520, Third connecting wall; 600, Receiving cavity; 700, Crossbeam; 800, Post; X, First direction; Y, Second direction; Z, Third direction;

[0037] The realization of the purpose, functional features and advantages of this utility model will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0038] It should be understood that the specific embodiments described herein are merely illustrative of the present invention and are not intended to limit the present invention.

[0039] In the description of this utility model, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," and "counterclockwise," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description. They do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, features defined with "first" and "second" may explicitly or implicitly include one or more of the stated features. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly and specifically defined.

[0040] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection, a direct connection, or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0041] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0042] Reference Figures 1 to 9 The present invention relates to a connector for a reconstructed steel structure. The connector 100 includes four side walls and two end walls 300. The four side walls are connected in sequence, and the two end walls 300 are arranged along a first direction X and are both connected to the four side walls.

[0043] Each of the aforementioned sidewalls is provided with a first hole 400;

[0044] In this embodiment, a plurality of first holes 400 are provided on the same sidewall, and the plurality of first holes 400 are arranged along the first direction X.

[0045] This solution provides a connector for a reconstructed steel structure, including a connector 100 for mounting a beam 700 and a column 800. At least one beam 700 and one column 800 are detachably connected to the connector 100. On-site, the beam 700 and column 800 can be detachably connected to the connector 100 using appropriate tools to achieve a reconstructed structure, reducing manufacturing costs. Specifically, it includes a first connecting assembly fixedly connected to the sidewall and the beam 700. Each sidewall has a first hole 400, and multiple first holes 400 are provided on the same sidewall, arranged along the first direction X. In one embodiment, the first hole 400 is a threaded hole, and the first connecting assembly may include a first bolt, which is threaded through the first hole 400. This connection method is simple and reliable, and assembly and disassembly are relatively easy, improving assembly or disassembly efficiency. In another embodiment, the first hole 400 is a through hole, and the first connecting assembly may include a first bolt and a first nut, with the first bolt passing through the first hole 400 and locking with the first nut. This connection method is simple and reliable, and its assembly and disassembly are relatively easy, which helps to improve assembly or disassembly efficiency. The first connecting component may include a pin or a tab, which is inserted into the first hole 400 to fix the connecting sidewall. This connection method is simple and reliable, and its assembly and disassembly are relatively easy, which helps to improve assembly or disassembly efficiency.

[0046] In one embodiment, multiple first holes 400 are provided on the same sidewall, and the multiple first holes 400 are arranged along the first direction X, which enables the lateral relative position of the connector 100 along the first direction X to meet different construction and assembly requirements. Furthermore, it also helps to reduce the specifications of the connector 100 and the number of different types of components.

[0047] In one embodiment, multiple rows of first holes 400 are provided on the same sidewall, and the multiple first holes 400 in each row are arranged along a first direction X. The multiple rows of first holes 400 are arranged along the width direction of the sidewall to improve the stability of the building structure.

[0048] In this reconfigurable steel structure, the same connector 100 can be used for connection joints in various scenarios, reducing the number of required components and offering numerous advantages. Specifically:

[0049] On the design side, fewer types of parts allow designers to quickly design based on standardized parts, reducing design time and labor costs, while avoiding customized design of multiple parts, which greatly saves design costs.

[0050] On the production side, reducing the variety of parts enables the production line to achieve efficient mass production, reduces resource waste in the production process, significantly improves production efficiency, and reduces production costs.

[0051] On the warehousing side, due to the fewer types of parts, inventory management becomes simpler, and timely delivery can be achieved through bulk stocking, reducing inventory backlog and management difficulty.

[0052] On the assembly side, the reduction in the types of parts makes it easier for construction workers to identify the parts, reduces the reliance on highly skilled workers, and allows construction workers to quickly get started with only simple training, thereby improving construction efficiency and reducing the risk of human error.

[0053] In addition, the reconfigurable steel structure can be assembled without welding. This innovative design helps reduce the construction difficulty for workers, greatly improves assembly efficiency, reduces labor costs, and reduces the adverse effects of welding errors.

[0054] Each of the end walls 300 is provided with a second hole 410, which is a through hole;

[0055] The same end wall 300 is provided with four second holes 410, and the line connecting the four second holes 410 forms a rectangle.

[0056] In one embodiment, the connector of the reconstructed steel structure includes a second connecting assembly. Each end wall 300 is provided with a second hole 410, which is a through hole. The second connecting assembly may include a second bolt, which passes through the second hole 410 and is threadedly connected to it. In another embodiment, the second hole 410 is a through hole, and the second connecting assembly may include a second bolt and a second nut, with the second bolt passing through the second hole 410 and locked to the second nut. In yet another embodiment, four second holes 410 are provided on the same end wall 300, the line connecting the four second holes 410 is rectangular, and they are fastened together by four second connecting assemblies, which helps to improve the stability of the building structure.

[0057] At least one of the sidewalls is provided with a groove. The four sidewalls include a first sidewall 110, a second sidewall 120, a third sidewall 130, and a fourth sidewall 140. The first sidewall 110 and the third sidewall 130 are arranged along a second direction Y, and the second sidewall 120 and the fourth sidewall 140 are arranged along a third direction Z. The second direction Y is perpendicular to the first direction X, and the third direction Z is perpendicular to both the second direction Y and the first direction X.

[0058] The first sidewall 110 has a first groove 200, which is recessed in the direction toward the third sidewall 130; the third sidewall 130 has a second groove 210, which is recessed in the direction toward the first sidewall 110.

[0059] In one embodiment, a first groove 200 is provided on the first sidewall 110, and the first groove 200 is recessed from the surface of the first sidewall 110 toward the third sidewall 130. By providing the first groove 200, it is beneficial to reduce the weight of the connector 100, thereby reducing the impact of the weight of the connector 100 on assembly.

[0060] In one embodiment, a second groove 210 is provided on the third sidewall 130, and the second groove 210 is recessed from the surface of the third sidewall 130 toward the first sidewall 110. By providing the second groove 210, it is beneficial to reduce the weight of the connector 100, thereby reducing the impact of the weight of the connector 100 on assembly.

[0061] The connector 100 further includes a first connecting wall 500, which is located between the first groove 200 and the second groove 210 along the second direction Y, and between the two end walls 300 along the first direction X, and connects the second side wall 120, the fourth side wall 140 and the two end walls 300.

[0062] As shown in the figure, in one embodiment, a first groove 200 is formed on the first sidewall 110, and a second groove 210 is formed on the third sidewall 130. The connector 100 also includes a first connecting wall 500, which is located between the first groove 200 and the second groove 210 along the second direction Y, and between the two end walls 300 along the first direction X, connecting the second sidewall 120, the fourth sidewall 140, and the two end walls 300. By reducing weight through the first groove 200 and the second groove 210, the first connecting wall 500 is provided to improve the structural rigidity and reliability of the connector 100, and reduce the risk of deformation or damage to the connector 100 due to stress.

[0063] In one embodiment, among the first sidewall 110, second sidewall 120, third sidewall 130, and fourth sidewall 140, some of the first holes 400 on the sidewalls are through holes, and some of the first holes 400 on the sidewalls are threaded holes. Furthermore, among the multiple first holes 400 on the same sidewall, some of the first holes 400 can be through holes, and some of the first holes 400 can be threaded holes.

[0064] In one embodiment, the first hole 400 on the first sidewall 110 can be a threaded hole, some of the first holes 400 on the second sidewall 120 can be through holes and some of the first holes 400 can be threaded holes, the first hole 400 on the third sidewall 130 can be threaded holes, and some of the first holes 400 on the fourth sidewall 140 can be through holes and some of the first holes 400 can be threaded holes.

[0065] In one embodiment, the connector 100 is integrally formed by casting, which helps to improve the structural rigidity and reliability of the connector 100, as well as simplify the processing and manufacturing process of the connector 100 and save the manufacturing cost of the connector 100.

[0066] The projections of the four sidewalls along the projection perpendicular to the first direction X form a rectangle;

[0067] The four sidewalls and two endwalls 300 form a receiving cavity 600.

[0068] In one embodiment, the projections of the four sidewalls along a projection perpendicular to the first direction X are rectangular, and the four sidewalls and two end walls 300 form a receiving cavity 600. By designing the connector 100 as a hollow structure with the receiving cavity 600, it is beneficial to reduce the weight of the connector 100 and simplify the processing and manufacturing process of the connector 100.

[0069] In one embodiment, the four sidewalls include a first sidewall 110, a second sidewall 120, a third sidewall 130, and a fourth sidewall 140. The first sidewall 110 and the third sidewall 130 are arranged along a second direction Y, and the second sidewall 120 and the fourth sidewall 140 are arranged along a third direction Z. The second direction Y is perpendicular to the first direction X, and the third direction Z is perpendicular to both the second direction Y and the first direction X.

[0070] The connector 100 further includes a second connecting wall 510 located within the receiving cavity 600. The second connecting wall 510 is located between the two end walls 300 along the first direction X and connects to at least two of the side walls.

[0071] In one embodiment, the connector 100 further includes a second connecting wall 510 located within the receiving cavity 600. The second connecting wall 510 is situated between two end walls 300 along a first direction X and connects to at least two side walls. By providing the second connecting wall 510 within the receiving cavity 600, it is beneficial to improve the structural rigidity and reliability of the connector 100 and reduce the risk of deformation or damage to the connector 100 due to stress.

[0072] In one embodiment, the second connecting wall 510 connects the first sidewall 110 and the third sidewall 130. In another embodiment, the second connecting wall 510 connects the second sidewall 120 and the fourth sidewall 140. In yet another embodiment, the second connecting wall 510 connects the first sidewall 110, the second sidewall 120, the third sidewall 130, and the fourth sidewall 140. In one embodiment, the second connecting wall 510 and the sidewalls are connected by welding.

[0073] The connector 100 further includes a third connecting wall 520 located within the receiving cavity 600. The third connecting wall 520 is located between the second connecting wall 510 and one of the end walls 300 along the first direction X, and connects the second connecting wall 510 and at least one of the side walls.

[0074] In one embodiment, the connector 100 further includes a third connecting wall 520 located within the receiving cavity 600. The third connecting wall 520 is situated along a first direction X between the second connecting wall 510 and an end wall 300, and connects the second connecting wall 510 and at least one side wall.

[0075] In one embodiment, the third connecting wall 520 connects the second connecting wall 510, the first side wall 110, and the third side wall 130. In another embodiment, the third connecting wall 520 connects the second connecting wall 510, the second side wall 120, and the fourth side wall 140. In yet another embodiment, the third connecting wall 520 connects not only the second connecting wall 510 and at least one side wall, but also an adjacent end wall 300.

[0076] By setting the third connecting wall 520, it is beneficial to further improve the structural rigidity and reliability of the connector 100 and reduce the risk of the connector 100 being deformed or damaged due to stress.

[0077] In one embodiment, the connection between any sidewall, any connecting wall and any endwall 300 of the connector 100 can be achieved by welding.

[0078] In one embodiment, the four sidewalls can be formed by welding four plates together, or by bending a single large plate.

[0079] In summary, the core innovation of this reconfigurable steel structure lies in the use of standardized connector 100, enabling the building to possess a reconfigurable structure. This design has significant advantages, specifically including:

[0080] 1. High-precision assembly, reducing accumulated tolerances. Traditional prefabricated building welding processes lead to gradually accumulating errors, affecting assembly accuracy, especially during later expansions where mismatches can easily occur. This system, using weld-free connectors (100), eliminates the accumulation of errors that can occur during welding. This significantly improves assembly accuracy, reducing assembly errors caused by accumulated tolerances and their impact on the building's overall integrity and consistency. Particularly during later expansions and adjustments, it enables precise and efficient docking and assembly, ensuring the stability of the building structure and its long-term accuracy.

[0081] 2. High transportation efficiency and reduced transportation costs. The connectors 100 and steel profiles in this system feature a simple, straight-line design, eliminating complex shapes and unnecessary additional components, thus greatly improving the utilization of transportation space. Traditional prefabricated building components often have complex shapes and varying sizes, leading to wasted transportation space and increased costs and difficulties. The standardized design of this application allows for a more compact arrangement of components, reducing space waste during transportation, improving efficiency, and significantly lowering costs. This design is particularly advantageous for large-scale projects and cross-regional transportation, reducing logistics costs and transportation time.

[0082] 3. Flexible Expansion and High Adaptability. The connector 100 of this system features a six-sided connectable steel profile, making building expansion more flexible. When an existing building needs expansion, it can be quickly implemented by simply adding connector 100 and steel profile units, without the need for redesigning or customizing connectors. This flexibility makes the building highly adaptable to functional changes and spatial expansion, reducing the design and construction complexity during the expansion process and significantly lowering expansion costs.

[0083] 4. Reduce the variety of parts, lowering design, production, assembly, and inventory management costs. Standardization of parts significantly reduces the number of required components, eliminating the need for designers to customize parts for each project, thus reducing design time and labor costs. On the production side, standardized design also improves efficiency and reduces costs. In warehousing management, fewer parts make inventory management more efficient and convenient, avoiding inventory backlogs caused by excessive parts and improving warehousing efficiency. On the construction side, workers can quickly identify and assemble parts using standardized components, reducing the risk of misuse during construction and improving overall construction efficiency.

[0084] 5. Foolproof design, easy to learn. This application's design fully considers foolproof mechanisms. The design of each connector 100 and component follows a standardization principle, ensuring that installation is unlikely to fail. This foolproof design reduces problems caused by misuse or incorrect installation of components during installation, improving accuracy and safety. Installers do not require high skills; any construction worker can easily master the installation steps after simple training, greatly reducing reliance on highly skilled workers, lowering the technical threshold, improving on-site work efficiency, and reducing construction costs.

[0085] 6. High installation efficiency and reduced construction time. Thanks to the standardized connector 100 and simplified assembly process, construction workers can assemble quickly and intuitively, significantly improving assembly efficiency. Traditional prefabricated buildings often require workers to identify and install components of various shapes, while the components in this application have a uniform and simple design, requiring minimal debugging and adjustment during assembly, thus greatly shortening construction time. Especially in large-scale construction projects, the improved installation efficiency not only shortens the construction period but also reduces labor costs and project risks caused by delays.

[0086] 7. Resource conservation and reduced waste. The reconfigurability and modular design of this application significantly improve the resource utilization efficiency of the building. All components can be reused, and can be adapted to different building needs through disassembly, reassembly, and recombination, reducing the generation of construction waste. Especially during demolition and reconstruction, the reuse of connections and structural steel significantly reduces material waste during construction, conforming to green and environmentally friendly design concepts and further promoting the development of sustainable buildings.

[0087] 8. Adaptable to Market Demands and Flexible Adjustment. This system can quickly adjust the building structure according to market demands, not only meeting the need for rapid response to changing market demands but also allowing for flexible expansion under different functional requirements. For building projects of different sizes and functions, building units can be flexibly added or removed according to actual conditions, and the spatial layout can be quickly adjusted. It is particularly suitable for commercial buildings, residential communities, temporary buildings, and other occasions requiring efficient and flexible expansion, meeting the construction industry's responsiveness to rapidly changing needs.

[0088] In summary, the reconfigurable steel structure of this application solves several technical bottlenecks in traditional prefabricated building systems through standardized design, simplified installation process, weld-free connection, high-precision assembly, excellent transportation efficiency, flexible expandability, and low-threshold construction requirements, providing a more efficient, economical, and environmentally friendly building solution.

[0089] The above description is only a preferred embodiment of the present utility model and does not limit the patent scope of the present utility model. Any equivalent structural or procedural transformations made based on the content of the present utility model specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of the present utility model.

Claims

1. A connector for a reconstructed steel structure, characterized in that, The connector includes four side walls and two end walls. The four side walls are connected in sequence, and the two end walls are arranged along a first direction and are both connected to the four side walls. Each of the aforementioned sidewalls is provided with a first hole; Multiple first holes are provided on the same sidewall, and the multiple first holes are arranged along the first direction.

2. The connector for the reconstructed steel structure according to claim 1, characterized in that, The first hole is a threaded hole.

3. The rebar connector of claim 1, wherein, The first hole is a through hole.

4. The rebar connector of claim 1, wherein, Each of the end walls is provided with a second hole, which is a through hole; The same end wall is provided with four second holes, and the line connecting the four second holes forms a rectangle.

5. The rebar connector of claim 1, wherein, At least one of the sidewalls is provided with a groove, and the four sidewalls include a first sidewall, a second sidewall, a third sidewall and a fourth sidewall. The first sidewall and the third sidewall are arranged along a second direction, and the second sidewall and the fourth sidewall are arranged along a third direction. The second direction is perpendicular to the first direction, and the third direction is perpendicular to both the second direction and the first direction. The first sidewall is provided with a first groove, which is recessed in the direction toward the third sidewall; The third sidewall has a second groove, which is recessed in the direction toward the first sidewall.

6. The rebar connector of claim 5, wherein, The connector further includes a first connecting wall, which is located between the first groove and the second groove along the second direction, between the two end walls along the first direction, and connects the second side wall, the fourth side wall and the two end walls.

7. The reconfigurable steel structural connector of claim 6, wherein, The connector is formed by integral casting.

8. The reconfigurable steel structural connector of claim 1, wherein, The projections of the four sidewalls along the projection perpendicular to the first direction are rectangular, and the four sidewalls and the two endwalls form a receiving cavity.

9. The reconfigurable steel structural connector of claim 8, wherein, The connector further includes a second connecting wall located within the receiving cavity, the second connecting wall being positioned between the two end walls along the first direction and connecting to at least two of the side walls.

10. The reconfigurable steel structural connector of claim 9, wherein, The connector further includes a third connecting wall located within the receiving cavity. The third connecting wall is positioned along the first direction between the second connecting wall and one of the end walls, and connects the second connecting wall and at least one of the side walls.

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