Modularized detachable steel structure

Abstract

The utility model relates to the technical field of steel structure frames, in particular to a modularized detachable steel structure, which comprises an arched space grid frame, and is characterized in that the arched space grid frame comprises a plurality of arc-shaped steel beams, and crossed supporting rod pieces are arranged among the arc-shaped steel beams. According to the modular detachable steel structure, through the design of the arched space grid frame, the comprehensive advantages of rapid construction, flexible adjustment, economy and durability are achieved. The core lies in modular combination of the standardized arc-shaped steel beams and the cross supporting rod pieces, all connecting joints are detachable and convenient to transport, store and reuse, the construction cost is greatly reduced, the construction time is greatly shortened, the cross supporting rod pieces are arranged through multi-angle steel pipes, the overall stability and deformation resistance are enhanced, and the construction efficiency is improved. And high-precision male and female plugging interfaces ensure accurate assembly, and manual adjustment is reduced.

Description

Technical Field

[0001] This utility model relates to the field of steel structure frame technology, and in particular to a modular and detachable steel structure. Background Technology

[0002] In traditional steel structure buildings, large-span spatial structures are typically fixed using welding or bolting. While this provides high strength, it also presents challenges such as long construction cycles, difficult disassembly, and high transportation costs. Furthermore, traditional structures often rely on customized production, hindering rapid assembly and reuse, leading to resource waste. Existing modular steel structures, although offering some improvements, still suffer from unreliable node connections, insufficient assembly precision, and limited corrosion and wear resistance, impacting long-term performance. Therefore, there is an urgent need for a modular steel structure solution that allows for rapid assembly and disassembly, high-precision connection, corrosion resistance, and cost-effectiveness.

[0003] Chinese patent discloses a steel structure frame (publication number: CN 211341134 U) including several intermediate beams and several purlins. Several first recesses are provided along the length of the intermediate beams for placing several purlins. Several second recesses are provided along the length of the intermediate beams, and the second recesses are adjacent to the first recesses. Abutment strips for abutting the several purlins are provided on the second recesses, and the abutment strips are parallel to the intermediate beams. However, this steel structure is complex to construct, difficult to disassemble and reuse, and the existing modular solutions are still insufficient in terms of connection reliability, assembly accuracy and durability. Therefore, a modular and detachable steel structure is needed. Utility Model Content

[0004] The purpose of this utility model is to address the shortcomings of existing technologies, such as complex construction of steel structures, difficulty in disassembly and reuse, and deficiencies in connection reliability, assembly accuracy and durability of existing modular solutions, and to propose a modular detachable steel structure.

[0005] The technical solution adopted by this utility model to solve its technical problem is as follows: A modular, detachable steel structure, comprising an arched spatial grid frame, characterized in that: the arched spatial grid frame includes multiple arc-shaped steel beams, with cross-bracing members between the arc-shaped steel beams, and detachable nodes between the cross-bracing members and the arc-shaped steel beams. Modular design: The entire structure is composed of standardized arc-shaped steel beams and cross-bracing members, facilitating factory prefabrication and rapid on-site assembly, improving construction efficiency; Detachability: All connection nodes are detachable, making the structure easy to transport, store, and reuse, reducing project costs; Spatial adaptability: The arched frame provides a large internal space, suitable for the needs of large-span buildings such as exhibition halls, warehouses, and stadiums.

[0006] Preferably, the cross-bracing members include longitudinal main steel pipes, transverse dividing steel pipes, and diagonal bracing steel pipes. Any two of the longitudinal main steel pipes, transverse dividing steel pipes, and diagonal bracing steel pipes intersect each other at an angle of 30° to 60°. The diameter ratio of the longitudinal main steel pipe to the diagonal bracing steel pipe is 1:0.6-0.8. The reasonable angle arrangement of the diagonal bracing steel pipes and main steel pipes improves the overall structure's resistance to lateral forces and deformation. The combination of steel pipes with different diameters ensures more uniform stress distribution, avoids localized stress concentration, and extends the structural lifespan. By rationally configuring the steel pipe dimensions, the structural self-weight is reduced while ensuring strength, thus lowering the foundation bearing requirements.

[0007] Preferably, the detachable node includes an inclined support member, one end of which is provided with a detachable connecting lug. The lug-type connection simplifies the installation process, eliminating the need for welding or complex tools and improving construction convenience; the node can adapt to different angle support requirements, facilitating structural adjustments or future expansion; the lug design ensures the node is not easily loosened under stress, improving the overall structural stability.

[0008] Preferably, the arc-shaped steel beam has a hollow cylindrical cross-section with a wall thickness of 8-15mm, and is made of Q355B or higher high-strength steel. The inner wall is coated with an epoxy zinc-rich anti-rust coating, and the outer wall has a polyurethane wear-resistant layer. The hollow cylindrical design reduces weight while ensuring load-bearing capacity, facilitating transportation and installation. The special coating treatment on the inner and outer walls enhances corrosion resistance and extends service life, making it particularly suitable for outdoor or high-humidity environments. The use of high-strength steel reduces material usage, lowers overall costs, and meets long-term use requirements.

[0009] Preferably, the top side of the curved steel beam is provided with a modular end-connection interface, which includes a male-female plug-in structure and a positioning pin hole. The allowable assembly tolerance of the modular end-connection interface is ≤±1.5mm. The male-female plug-in structure and positioning pin hole ensure precise connection, avoid misalignment, and improve the overall structural integrity. The standardized interface design makes the assembly process more efficient and reduces manual adjustment time. The modular interface allows different components to be interchanged, facilitating maintenance or replacement of damaged parts.

[0010] Preferably, the radius of curvature of the arc-shaped steel beams ranges from 5 to 15 m, and the center-to-center distance between adjacent steel beams is 1.2 to 2.5 m. A reasonable radius of curvature and spacing balances structural strength and space utilization, making it suitable for buildings with different spans; standardized dimensions reduce customized production and lower manufacturing costs; the arched design provides a smooth visual effect, suitable for modern architectural styles.

[0011] The advantages of this utility model are:

[0012] This application achieves a comprehensive advantage of rapid construction, flexible adjustment, and economic durability through a modular, detachable steel structure with an arched spatial grid frame design. Its core lies in the modular combination of standardized curved steel beams and cross-bracing members. All connection nodes are detachable, facilitating transportation, storage, and reuse, significantly reducing construction costs and time. The cross-bracing members utilize multi-angle steel pipe arrangements to enhance overall stability and deformation resistance, while high-precision male-female interlocking interfaces ensure accurate assembly and reduce manual adjustments. The curved steel beams use high-strength, lightweight materials, with special coatings on the inner and outer walls to improve corrosion and wear resistance, making them suitable for various environments. Furthermore, the rational curvature radius and spacing design optimizes structural strength and space utilization, making the structure suitable for both large-span temporary buildings (such as exhibition halls and emergency facilities) and permanent buildings (such as stadiums and warehouses), while also considering aesthetics and economy. Attached Figure Description

[0013] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0014] Figure 1 This is a schematic diagram of the structure of this utility model.

[0015] Figure 2 This utility model Figure 1 Enlarged view of I in the middle.

[0016] Figure 3 This utility model Figure 2 Enlarged view of section II.

[0017] Figure 4 This utility model Figure 3 Enlarged view of section III.

[0018] In the diagram: 1. Curved steel beam; 2. Cross support members; 3. Detachable connecting lugs; 4. Diagonal support members; 5. Male and female plug-in structure; 6. Positioning pin holes; 7. Diagonal bracing steel pipes; 8. Transverse dividing steel pipes; 9. Longitudinal main steel pipes. Detailed Implementation

[0019] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present utility model. Example

[0020] Please see Figure 1-4 As shown, a modular, detachable steel structure includes an arched spatial grid frame. The arched spatial grid frame comprises multiple curved steel beams 1, with cross-bracing members 2 between the curved steel beams 1, and detachable nodes between the cross-bracing members 2 and the curved steel beams 1. Modular design: The entire structure is composed of standardized curved steel beams 1 and cross-bracing members 2, facilitating factory prefabrication and rapid on-site assembly, improving construction efficiency; Detachability: All connection nodes are detachable, making the structure easy to transport, store, and reuse, reducing project costs; Spatial adaptability: The arched frame provides a large internal space, suitable for the needs of large-span buildings such as exhibition halls, warehouses, and stadiums.

[0021] In this embodiment, the cross-bracing member 2 includes a longitudinal main steel pipe 9, a transverse dividing steel pipe 8, and a diagonal bracing steel pipe 7. Any two of the longitudinal main steel pipe 9, transverse dividing steel pipe 8, and diagonal bracing steel pipe 7 intersect each other at an angle of 30° to 60°. The diameter ratio of the longitudinal main steel pipe 9 to the diagonal bracing steel pipe 7 is 1:0.6-0.8. The reasonable angle arrangement of the diagonal bracing steel pipe 7 and the main steel pipe improves the overall structure's resistance to lateral forces and deformation. The combination of steel pipes with different diameters ensures more uniform stress distribution, avoids local stress concentration, and extends the structural lifespan. By rationally configuring the steel pipe dimensions, the structural self-weight is reduced while ensuring strength, thus lowering the foundation bearing requirements.

[0022] In this embodiment, the detachable node includes an inclined support rod 4, one end of which is provided with a detachable connecting lug 3. The lug-type connection simplifies the installation process, eliminating the need for welding or complex tools and improving construction convenience; the node can adapt to support requirements at different angles, facilitating structural adjustments or future expansion; the lug design ensures that the node is not easily loosened under stress, improving the overall structural stability.

[0023] In this embodiment, the arc-shaped steel beam 1 has a hollow cylindrical cross-section with a wall thickness of 8-15mm, and is made of Q355B or higher high-strength steel. The inner wall is coated with an epoxy zinc-rich anti-rust coating, and the outer wall is provided with a polyurethane wear-resistant layer. The hollow cylindrical design reduces weight while ensuring load-bearing capacity, facilitating transportation and installation. The special coating treatment on the inner and outer walls enhances corrosion resistance and extends service life, making it particularly suitable for outdoor or high-humidity environments. The use of high-strength steel reduces material usage, lowers overall costs, and meets long-term use requirements.

[0024] In this embodiment, a modular end-connection interface is provided on one side of the top of the arc-shaped steel beam 1. The modular end-connection interface includes a male-female plug-in structure 5 and a positioning pin hole 6. The allowable assembly tolerance of the modular end-connection interface is ≤±1.5mm. The male-female plug-in structure and the positioning pin hole 6 ensure precise connection, avoid misalignment, and improve the overall structural integrity. The standardized interface design makes the assembly process more efficient and reduces manual adjustment time. The modular interface allows different components to be interchanged, facilitating maintenance or replacement of damaged parts.

[0025] In this embodiment, the radius of curvature of the arc-shaped steel beam 1 ranges from 5 to 15 m, and the center-to-center distance between adjacent steel beams is 1.2 to 2.5 m. The reasonable radius of curvature and spacing balance structural strength and space utilization, making it suitable for building requirements of different spans; standardized dimensions reduce customized production and lower manufacturing costs; the arched design provides a smooth visual effect, suitable for modern architectural styles.

[0026] The implementation principle of this embodiment is as follows:

[0027] 1. Main framework construction

[0028] High-strength curved steel beams are precisely arranged with a curvature radius of 5-15m and a spacing of 1.2-2.5m to form a stable arched spatial grid system. The steel beams adopt a hollow cylindrical design, with an epoxy zinc-rich anti-corrosion coating on the inner wall and a polyurethane wear-resistant layer on the outer wall, achieving lightweight while ensuring structural strength.

[0029] 2. Support system connection

[0030] Adjacent steel beams are connected by a cross-bracing system consisting of longitudinal main steel pipes 9, transverse dividing steel pipes 8, and diagonal bracing steel pipes 7. The diagonal bracing steel pipes 7 are arranged at an optimal angle of 30°-60° with the main steel pipes, and are designed with a diameter ratio of 1:0.6-0.8 to form a highly efficient and stable triangular force-bearing unit, ensuring uniform load transfer.

[0031] 3. Node connection method

[0032] The components are connected by detachable, hook-type nodes, with ±1.5mm high-precision positioning pin holes 6, enabling rapid and accurate docking. A standardized male-female interlocking structure 5 is installed at the top of the steel beam to ensure the convenience and reliability of modular assembly.

[0033] 4. Overall structural characteristics

[0034] Through standardized prefabricated components and modular connection methods, rapid assembly and disassembly and reuse are achieved. The arched frame and triangular support system work together to form a spatial structural system with excellent lateral stiffness and overall stability, meeting the structural requirements of various large-span buildings.

[0035] In the description of this specification, references to terms such as "an embodiment," "example," "specific example," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0036] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model.

Claims

1. A modular, detachable steel structure, comprising an arched spatial grid frame, characterized in that... The arched spatial grid frame includes multiple arc-shaped steel beams (1), and cross support members (2) are provided between the arc-shaped steel beams (1). The cross support members (2) and the arc-shaped steel beams (1) are provided with detachable nodes.

2. The modular detachable steel structure according to claim 1, characterized in that: The cross support member (2) includes a longitudinal main steel pipe (9), a transverse dividing steel pipe (8) and a diagonal bracing steel pipe (7). Any two of the longitudinal main steel pipe (9), the transverse dividing steel pipe (8) and the diagonal bracing steel pipe (7) intersect each other at an angle of 30° to 60°. The diameter ratio of the longitudinal main steel pipe (9) to the diagonal bracing steel pipe (7) is 1:0.6-0.

8.

3. The modular detachable steel structure according to claim 1, characterized in that: The detachable node includes an inclined support rod (4), and one end of the inclined support rod (4) is provided with a detachable connecting lug (3).

4. A modular detachable steel structure according to claim 1, characterized in that: The arc-shaped steel beam (1) has a hollow cylindrical cross-section with a wall thickness of 8-15mm and is made of Q355B or higher high-strength steel. The inner wall is coated with an epoxy zinc-rich anti-rust coating, and the outer wall is provided with a polyurethane wear-resistant layer.

5. A modular detachable steel structure according to claim 1, characterized in that: The top side of the arc-shaped steel beam (1) is provided with a modular end interface, which includes a male and female plug-in structure (5) and a positioning pin hole (6). The allowable assembly tolerance of the modular end interface is ≤ ±1.5mm.

6. A modular detachable steel structure according to claim 1, characterized in that: The radius of curvature of the arc-shaped steel beam (1) ranges from 5 to 15 m, and the center distance between adjacent steel beams is 1.2 to 2.5 m.

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