Spoke type single-layer rigid reticulated shell structure

Abstract

The invention relates to the field of building structures, in particular to a spoke type single-layer rigid reticulated shell structure which comprises an inner ring beam, an outer ring beam and a plurality of inner ring beams. The outer ring beam is of a plane structure, and the plane where the outer ring beam and the plane where the inner ring beam are located are not coplanar; the web members are arranged between the inner ring beam and the outer ring beam and used for connecting and supporting the inner ring beam and the outer ring beam which are not coplanar. The inner ring beam and the outer ring beam which are not coplanar and the web members jointly form a reasonable spatial curved surface form, the overall structure is in a three-dimensional stress characteristic, an internal force self-balancing system is formed, only vertical force is transmitted to a lower supporting structure, and the bending moment effect is not generated. Compared with an existing frame and truss structure, the structure height of the support is smaller, the section of the lower supporting structure is smaller, and the structure is light, attractive and economical and applicable; compared with an existing spoke type tensioning structure, the tensioning structure is large in rigidity, small in deformation, easy and convenient to design and construct and higher in adaptability to a building envelope. The invention can be used for building roof structures.

Description

Technical Field

[0001] This invention relates to the field of building structures, and in particular to a spoke-type single-layer rigid reticulated shell structure. Background Technology

[0002] With the development of society and economy and the advancement of construction technology, people have placed higher demands on architectural aesthetics and forms. Structural systems with large spans, minimal deformation, lightweight and beautiful appearance, economic practicality, and convenient construction are becoming increasingly popular.

[0003] When conventional frame or truss structural systems are used to achieve large spans and large cantilever structures, the structural height at the supports increases significantly. Furthermore, the horizontal members transfer the vertical load to the lower supporting structure through bending moments, thereby increasing the stress burden on the lower supporting structure. This results in the lower supporting structure having excessively large cross-sectional dimensions, making the overall structure appear bulky, affecting the architectural effect, and leading to poor economic efficiency.

[0004] Spoke-and-wheel tensioned structures offer large spans and are lightweight and aesthetically pleasing, but require prestressing to establish stiffness, load-bearing capacity, and stability. The structure's shape, stiffness, and the magnitude and sequence of prestressing application make design and construction complex and difficult. Spoke-and-wheel tensioned structures are flexible systems, exhibiting significant deformation under external loads and prone to stress relaxation under long-term loads. Their enclosure structures often utilize membrane structures, making them sensitive to wind loads and susceptible to resonance tearing under wind loads, leading to difficulties in later maintenance. Summary of the Invention

[0005] In view of the problems existing in the prior art mentioned above, the purpose of this invention is to provide a spoke-type single-layer rigid reticulated shell structure.

[0006] The technical solution adopted by the present invention to solve the above-mentioned technical problems is as follows:

[0007] The present invention provides a spoke-type single-layer rigid reticulated shell structure, which has the following features: an inner ring beam (1), which is a planar structure; an outer ring beam (3), which is a planar structure, and the planes on which the outer ring beam (3) and the inner ring beam (1) are located are not coplanar; and a plurality of web members (2) are disposed between the inner ring beam (1) and the outer ring beam (3) for connecting and supporting the non-coplanar inner ring beam (1) and the outer ring beam (3).

[0008] Furthermore, the present invention provides a spoke-type single-layer rigid reticulated shell structure, which also has the following feature: the planar layout of the inner ring beam (1) and the outer ring beam (3) can be circular, elliptical or polygonal.

[0009] Furthermore, the present invention provides a spoke-type single-layer rigid reticulated shell structure, which may also have the following features: it further includes a central roof structure (4), which is connected to the inner ring beam (1).

[0010] Furthermore, the present invention provides a spoke-type single-layer rigid reticulated shell structure, which also has the following features: it further includes a lower support structure (5), which is only connected to the inner ring beam (1).

[0011] Furthermore, the present invention provides a spoke-type single-layer rigid reticulated shell structure, which also has the following features: it further includes a lower support structure (5), which is only connected to the outer ring beam (3).

[0012] Furthermore, the present invention provides a spoke-type single-layer rigid reticulated shell structure, which also has the following features: the web members (2) are arranged in pairs in a V-shape to form a group, and multiple groups of web members (2) are arranged in a ring in the circumferential direction. Beneficial effects of the invention

[0013] 1. The spoke-type single-layer rigid reticulated shell structure provided by this invention features non-coplanar inner and outer ring beams, which, together with the web members, form a rational spatial curved surface shape, exhibiting three-dimensional stress characteristics. Under vertical loads, the web members are only subjected to axial forces, while the inner and outer ring beams form tension or compression rings respectively. The internal forces among the three are self-balanced, forming a self-balancing force system. Therefore, it only transmits vertical forces to the lower support structure without generating bending moments. The structural height at the supports is relatively small, significantly reducing the burden on the lower support structure. The overall structural logic is clear, the force transmission path is well-defined, and the mechanical properties of the materials can be fully utilized. Compared to the performance of conventional frame and truss structures in achieving large spans and large cantilever structures, this invention has a smaller structural height at the supports and a smaller cross-section of the lower support structure, combining lightweight aesthetics with economic applicability.

[0014] 2. This invention uses rigid components, resulting in high overall stiffness and minimal deformation under stress. It requires no prestressing, simplifying design and reducing construction procedures and measures, facilitating on-site operations. Furthermore, it eliminates stress relaxation issues, minimizing maintenance requirements. This invention is adaptable to both flexible and rigid enclosure structures, offering a wide range of applications. Compared to conventional spoke-type tensioned structures, this invention boasts greater stiffness, less deformation, simpler design and construction, and stronger adaptability to enclosure structures. Attached Figure Description

[0015] Those skilled in the art will understand that the accompanying drawings are provided to better understand the invention and do not constitute any limitation on the scope of the invention. Furthermore, the following drawings are some embodiments of the invention, not all embodiments.

[0016] Figure 1 This is a top view schematic diagram of the spoke-type single-layer rigid reticulated shell structure of Example 1.

[0017] Figure 2 This is a schematic elevation view of the spoke-type single-layer rigid reticulated shell structure of Example 1.

[0018] Figure 3 This is an axonometric schematic diagram of the spoke-type single-layer rigid reticulated shell structure of Example 1.

[0019] Figure 4 This is a top view schematic diagram of the spoke-type single-layer rigid reticulated shell structure of Embodiment 2.

[0020] Figure 5 This is a schematic elevation view of the spoke-type single-layer rigid reticulated shell structure in Example 2.

[0021] Figure 6 This is an axonometric schematic diagram of the spoke-type single-layer rigid reticulated shell structure in Example 2.

[0022] Figure 7 This is a top view schematic diagram of the spoke-type single-layer rigid reticulated shell structure of Example 3.

[0023] Figure 8 This is a schematic diagram of the elevation of the spoke-type single-layer rigid reticulated shell structure in Example 3.

[0024] Figure 9 This is an axonometric schematic diagram of the spoke-type single-layer rigid reticulated shell structure in Example 3.

[0025] 1-Inner ring beam; 2-Web member; 3-Outer ring beam; 4-Central roof structure; 5-Substructure support structure Detailed Implementation

[0026] The present invention will now be described in detail with reference to the accompanying drawings and specific embodiments. The following embodiments are based on the technical solutions of the present invention and provide detailed implementation methods. It should be noted that the following embodiments are some, not all, of the present invention, and the scope of protection of the present invention is not limited to the following embodiments.

[0027] Example 1

[0028] like Figures 1 to 3 As shown, the spoke-type single-layer rigid reticulated shell structure includes an inner ring beam (1), a web member (2), an outer ring beam (3), and a lower support structure (5).

[0029] The inner ring beam (1) is located below the outer ring beam (3), and the inner ring beam (1) and the outer ring beam (3) are not coplanar. The web member (2) is located between the inner ring beam (1) and the outer ring beam (3) to connect and support the non-coplanar inner ring beam (1) and outer ring beam (3).

[0030] Both the inner ring beam (1) and the outer ring beam (3) have circular planar shapes.

[0031] The lower support structure (5) is only connected to the inner ring beam (1).

[0032] The web members (2) are arranged in pairs in a V-shape to form a group, and multiple groups of web members (2) are arranged in a ring shape in the circumferential direction.

[0033] The overall structure has an outwardly cantilevered concave shape. Under vertical load, the web member (2) is compressed; the inner ring beam (1) is compressed, forming a compression ring; the outer ring beam (3) is tensile, forming a tension ring; the internal forces among the inner ring beam (1), web member (2), and outer ring beam (3) are balanced, forming a self-balancing force system. It only transmits vertical force to the lower supporting structure, without bending moment, and the structural height at the support is small, reducing the burden on the lower supporting structure. Finally, an outwardly cantilevered concave structure with an opening in the middle is formed.

[0034] Example 2

[0035] like Figures 4 to 6 As shown, the spoke-type single-layer rigid reticulated shell structure includes an inner ring beam (1), a web member (2), an outer ring beam (3), a central roof structure (4), and a lower support structure (5).

[0036] The inner ring beam (1) is located above the outer ring beam (3), and the inner ring beam (1) and the outer ring beam (3) are not coplanar. The web member (2) is located between the inner ring beam (1) and the outer ring beam (3) to connect and support the non-coplanar inner ring beam (1) and outer ring beam (3).

[0037] Both the inner ring beam (1) and the outer ring beam (3) have circular planar shapes.

[0038] The central roof structure (4) is connected to the inner ring beam (1) to form a closed cover over the building space.

[0039] The lower support structure (5) is only connected to the outer ring beam (3).

[0040] The web members (2) are arranged in pairs in a V-shape to form a group, and multiple groups of web members (2) are arranged in a ring shape in the circumferential direction.

[0041] The overall structure has an inwardly convex shape. Under vertical load, the web member (2) is compressed; the inner ring beam (1) is compressed, forming a compression ring; and the outer ring beam (3) is tensile, forming a tension ring. The internal forces among the inner ring beam (1), web member (2), and outer ring beam (3) are balanced, forming a self-balancing force system. It only transmits vertical force to the lower supporting structure, without bending moment, and the structural height at the support is small, reducing the burden on the lower supporting structure. Finally, a large-span convex structure with a closed middle section is formed.

[0042] Example 3

[0043] like Figures 7 to 9 As shown, the spoke-type single-layer rigid reticulated shell structure includes an inner ring beam (1), a web member (2), an outer ring beam (3), and a lower support structure (5).

[0044] The inner ring beam (1) is located below the outer ring beam (3), and the inner ring beam (1) and the outer ring beam (3) are not coplanar. The web member (2) is located between the inner ring beam (1) and the outer ring beam (3) to connect and support the non-coplanar inner ring beam (1) and outer ring beam (3).

[0045] Both the inner ring beam (1) and the outer ring beam (3) have elliptical plane shapes.

[0046] The lower support structure (5) is only connected to the outer ring beam (3).

[0047] The web members (2) are arranged in pairs in a V-shape to form a group, and multiple groups of web members (2) are arranged in a ring shape in the circumferential direction.

[0048] The overall structure has an inwardly cantilevered concave shape. Under vertical load, the web member (2) is under tension; the inner ring beam (1) is under tension, forming a tension ring; and the outer ring beam (3) is under compression, forming a compression ring. The internal forces among the inner ring beam (1), web member (2), and outer ring beam (3) are mutually balanced, forming a self-balancing force system. It only transmits vertical force to the lower supporting structure, without bending moment, and the structural height at the support is small, reducing the burden on the lower supporting structure. Finally, an inwardly cantilevered concave structure with an opening in the middle is formed.

Claims

1. A spoke-type single-layer rigid reticulated shell structure, characterized in that: It includes an inner ring beam (1), which is a planar structure; an outer ring beam (3), which is a planar structure, and the outer ring beam (3) and the plane of the inner ring beam (1) are not coplanar; and a number of web members (2), which are disposed between the inner ring beam (1) and the outer ring beam (3) for connecting and supporting the non-coplanar inner ring beam (1) and outer ring beam (3).

2. According to claim 1, the spoke-type single-layer rigid reticulated shell structure is characterized in that: The inner ring beam (1) and the outer ring beam (3) are arranged in a circular, elliptical or polygonal shape.

3. According to claim 1, the spoke-type single-layer rigid reticulated shell structure is characterized in that: It also includes a central roof structure (4), which is connected to the inner ring beam (1).

4. According to claim 1, the spoke-type single-layer rigid reticulated shell structure is characterized in that: It also includes a lower support structure (5), which is connected only to the inner ring beam (1).

5. According to claim 1, the spoke-type single-layer rigid reticulated shell structure is characterized in that: It also includes a lower support structure (5), which is only connected to the outer ring beam (3).

6. According to claim 1, the spoke-type single-layer rigid reticulated shell structure is characterized in that: The web members (2) are arranged in pairs in a V-shape to form a group, and multiple groups of web members (2) are arranged in a ring shape in the circumferential direction.

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