Cable-supported long-span beam string reticulated shell structure system

Abstract

The present invention provides a cable-split long-span cable-supported reticulated shell structure system, which includes a reticulated shell structure and a cable net structure arranged below the reticulated shell structure; wherein, for the reticulated shell structure, there is an opening in the center, and the reticulated shell structure includes a first part and a second part, and the span of the first part is greater than that of the second part; for the cable net structure, it includes a first inner ring cable and a second inner ring cable located on the same horizontal plane, the first inner ring cable is arranged circumferentially below the entire reticulated shell structure, and the second inner ring cable is arranged circumferentially below the first part. By adding a second inner ring cable below the first part with a larger span in the reticulated shell structure, so that the second inner ring cable and the first inner ring cable jointly bear the load transmitted by the upper reticulated shell structure, making the force of the entire structure system more uniform and reasonable, without the need to additionally increase the cross-sectional dimensions of the relevant members at the second part, and at the same time, it will not affect the building effect.

Description

Technical Field

[0001] The present invention relates to the technical field of building structure design, and particularly to a cable-split long-span beam string reticulated shell structure system. Background Art

[0002] In recent years, with the rapid development of China's economy and technology, the adjustment of the building industrial structure and the acceleration of technological transformation, people have gradually put forward higher requirements for buildings, such as excellent performance, beautiful shape, and large covered space. The number and specifications of large sports stadiums in China have also been greatly improved, which not only provides basic conditions for the country to hold various sports competitions, but also greatly promotes the application and development of long-span space structures.

[0003] At present, the common basic structural types of long-span space structures include grid structures, reticulated shell structures, cable net structures, membrane structures, etc. For a long-span beam string reticulated shell structure with a middle opening and mostly circular or elliptical shape, the long-span beam string reticulated shell structure usually includes a reticulated shell structure and a cable net structure arranged below the reticulated shell structure. When the opening of the long-span beam string reticulated shell structure is not a regular circle, there is a problem that the spans in two different directions of the reticulated shell structure differ greatly, resulting in the cable net structure below the larger-span part of the reticulated shell structure needing to bear far more load than the cable net structure below the smaller-span part, thus causing uneven stress in the entire structural system and requiring an increase in the cross-sectional dimensions of relevant members at the larger-span part. Summary of the Invention

[0004] The purpose of the present invention is to provide a cable-split long-span beam string reticulated shell structure system, which makes the stress of the structural system more uniform and reasonable, does not require additional increase in the cross-sectional dimensions of members while ensuring the building effect, and improves the economy of the structural system.

[0005] To achieve the above purpose, the present invention provides a cable-split long-span beam string reticulated shell structure system, including a reticulated shell structure and a cable net structure arranged below the reticulated shell structure; wherein,

[0006] The reticulated shell structure has an opening at the center, and the reticulated shell structure includes a first part and a second part, and the span of the first part is greater than that of the second part;

[0007] The cable net structure includes a first inner ring cable and a second inner ring cable on the same horizontal plane. The first inner ring cable is arranged along the circumference below the entire reticulated shell structure, and the second inner ring cable is arranged along the circumference below the first part, and both ends of the second inner ring cable are respectively connected to the first inner ring cable.

[0008] Optionally, it includes an outer ring beam, an inner ring beam, edge beams and a number of connecting members. The edge beams are located inside the inner ring beam and are respectively connected to the outer ring beam at both ends. A number of connecting members are spliced in the area between the outer ring beam and the inner ring beam and in the area between the inner ring beam and the edge beams. The outer ring beam, the edge beams and the inner ring beam and connecting members between the outer ring beam and the edge beams together form the first part, and the outer ring beam, the inner ring beam and the connecting members between the outer ring beam and the inner ring beam together form the second part.

[0009] Optionally, there are two edge beams and they are parallel to each other.

[0010] Optionally, the two edge beams are arranged at the same height.

[0011] Optionally, the vertical height of the inner ring beam is greater than the vertical height of the outer ring beam and less than the vertical height of the edge beam.

[0012] Optionally, the areas of the regions enclosed by the two edge beams and the inner ring beam are the same.

[0013] Optionally, the cable net structure further includes a number of first radial cables and a number of second radial cables. The first inner ring cable is connected to the outer ring beam through the first radial cable, and the second inner ring cable is connected to the inner ring beam through the second radial cable.

[0014] Optionally, the cable net structure further includes a number of first support rods and a number of second support rods. The top of the first support rod is connected to the reticulated shell structure, and the bottom is connected to the first inner ring cable and the first radial cable. The top of the second support rod is connected to the reticulated shell structure, and the bottom is connected to the second inner ring cable and the second radial cable.

[0015] Optionally, the connecting members are aluminum alloy members.

[0016] Optionally, the outer ring beam, the inner ring beam and the edge beams are all steel members.

[0017] The present invention provides a cable-split long-span cable-supported reticulated shell structure system. By adding the second inner ring cable below the first part with a larger span in the reticulated shell structure, the second inner ring cable and the first inner ring cable jointly bear the load transmitted by the upper reticulated shell structure, making the force of the entire structure system more uniform and reasonable, without the need to additionally increase the cross-sectional dimensions of the relevant members at the second part, improving the economy of the structure system, and at the same time not affecting the building effect. Description of the Drawings

[0018] Those of ordinary skill in the art will understand that the provided drawings are used to better understand the present invention and do not constitute any limitation to the scope of the present invention. Among them:

[0019] Figure 1 This is the top view of the cable-split large-span beam string reticulated shell structure system provided by the embodiment of the present invention;

[0020] Figure 2 This is the partial schematic diagram of the cable-split large-span beam string reticulated shell structure system provided by the embodiment of the present invention;

[0021] In the drawings:

[0022] 1 - The first part; 2 - The second part;

[0023] 10 - The first inner ring cable; 20 - The second inner ring cable; 30 - The outer ring beam; 40 - The inner ring beam; 50 - The edge sealing beam; 60 - The connecting member; 71 - The first radial cable; 72 - The second radial cable; 81 - The first support rod; 82 - The second support rod. Detailed implementation manners

[0024] To make the objectives, advantages and features of the present invention clearer, the present invention will be further described in detail below with reference to the drawings and specific embodiments. It should be noted that the drawings are all in a very simplified form and not drawn to scale, and are only used to facilitate and clearly assist in explaining the objectives of the embodiments of the present invention. In addition, the structures shown in the drawings are often part of the actual structures. In particular, the focus to be shown in each drawing is different, and sometimes different scales are used.

[0025] As used in the present invention, the singular forms "a", "an" and "the" include plural objects unless the context clearly indicates otherwise. As used in the present invention, the term "or" is generally used in the sense of including "and / or" unless the context clearly indicates otherwise. As used in the present invention, the term "several" is generally used in the sense of including "at least one" unless the context clearly indicates otherwise. As used in the present invention, the term "at least two" is generally used in the sense of including "two or more" unless the context clearly indicates otherwise. In addition, the terms "first", "second", "third" are only used for descriptive purposes and cannot be construed as indicating or implying relative importance or implicitly indicating the quantity of the indicated technical features. Thus, the features defined with "first", "second", "third" may explicitly or implicitly include one or at least two of such features.

[0026] Please refer to Figure 1 - Figure 2 , Figure 1 This is the top view of the cable-split large-span beam string reticulated shell structure system provided by the embodiment of the present invention, Figure 2It is a partial schematic diagram of the cable-split large-span cable-supported reticulated shell structure system provided by the embodiments of the present invention. The embodiments of the present invention provide a cable-split large-span cable-supported reticulated shell structure system, including a reticulated shell structure and a cable net structure arranged below the reticulated shell structure; wherein,

[0027] For the reticulated shell structure, there is an opening in the center. The reticulated shell structure includes a first part 1 and a second part 2, and the span of the first part 1 is greater than that of the second part 2;

[0028] The cable net structure includes a first inner ring cable 10 and a second inner ring cable 20 located on the same horizontal plane. The first inner ring cable 10 is arranged along the circumference below the entire reticulated shell structure, and the second inner ring cable 20 is arranged along the circumference below the first part 1, and both ends of the second inner ring cable 20 are respectively connected to the first inner ring cable 10.

[0029] Specifically, the reticulated shell structure includes an outer ring beam 30, an inner ring beam 40, a sealing edge beam 50 and a number of connecting rod members 60. The sealing edge beam 50 is located inside the inner ring beam 40 and both ends are respectively connected to the outer ring beam 30. A number of connecting rod members 60 are respectively spliced in the area between the outer ring beam 30 and the inner ring beam 40 and the area between the inner ring beam 40 and the sealing edge beam 50. The outer ring beam 30, the sealing edge beam 50 and the inner ring beam 40 and the connecting rod members 60 between the outer ring beam 30 and the sealing edge beam 50 together constitute the first part 1, and the outer ring beam 30, the inner ring beam 40 and the connecting rod members 60 between the outer ring beam 30 and the inner ring beam 40 together constitute the second part 2.

[0030] In this embodiment, combined with Figure 1 , the middle opening of the large-span cable-supported reticulated shell structure is approximately rectangular, and the span of the inner ring beam 40 and the outer ring beam 30 in the north-south direction is significantly smaller than the span of the sealing edge beam 50 and the outer ring beam 30 in the east-west direction, so that the load that the inner ring cable in the east-west direction needs to bear is far greater than the load that the inner ring cable in the north-south direction needs to bear. Therefore, in this embodiment, the second inner ring cable 20 is added below the first part 1 with a larger span in the reticulated shell structure, so that the second inner ring cable 20 and the first inner ring cable 10 jointly bear the load transmitted by the upper reticulated shell structure, making the force of the entire structure system more uniform and reasonable, without the need to additionally increase the cross-sectional dimensions of the relevant members at the second part 2, improving the economy of the structure system, and at the same time not affecting the building effect.

[0031] It should be understood that the "first part 1" and "second part 2" mentioned in this application do not specifically refer to a certain specific area, and can include multiple non-adjacent areas. For example, in this embodiment, the first part 1 includes two non-adjacent parts of the reticulated shell structure in the east-west direction, and the second part 2 includes two non-adjacent parts of the reticulated shell structure in the north-south direction. At the same time, this application does not specifically limit the shape of the central opening of the reticulated shell structure either.

[0032] In addition, the "first inner ring cable 10" and "second inner ring cable 20" mentioned in this application are not limitations on the number of inner ring cables. The number of inner ring cables can be adjusted according to the span size and force requirements, and this application does not specifically limit this. In this embodiment, the first inner ring cable 10 is integrally circular, the second inner ring cable 20 is in two sections, and both are arc-shaped. The two ends of each section of the second inner ring cable 20 are respectively connected to the first inner ring cable 10, and the intersection point of the second inner ring cable 20 and the first inner ring cable 10 is exactly below the intersection point of the edge beam 50 and the inner ring beam 40.

[0033] In this embodiment, there are two edge beams 50 and they are parallel to each other. Further, the two edge beams 50 are arranged at the same height, so that the symmetry of the reticulated shell structure is better and the force is more uniform and reasonable.

[0034] Furthermore, the vertical height of the inner ring beam 40 is greater than the vertical height of the outer ring beam 30 and less than the vertical height of the edge beam 50. Designed in this way, the reticulated shell structure looks like a spherical surface from the outside elevation, with better overall aesthetics and clear and reasonable force.

[0035] In this embodiment, the areas of the regions enclosed by the two edge beams 50 and the inner ring beam 40 are the same.

[0036] In this embodiment, the connecting rod member 60 is preferably an aluminum alloy member. Aluminum alloy material is very light in weight, high in strength and good in corrosion resistance, which is a better choice. The outer ring beam 30, the inner ring beam 40 and the edge beam 50, as the support skeleton of the reticulated shell structure, are preferably steel members, with good mechanical properties and high structural reliability.

[0037] Please continue to refer to Figure 2 , the cable net structure further includes a plurality of first radial cables 71 and a plurality of second radial cables 72. The first inner ring cable 10 is connected to the outer ring beam 30 through the first radial cables 71, and the second inner ring cable 20 is connected to the inner ring beam 40 through the second radial cables 72.

[0038] Furthermore, the cable net structure further includes a plurality of first support rods 81 and a plurality of second support rods 82. The top end of the first support rod 81 is connected to the reticulated shell structure, and the bottom end is connected to the first inner ring cable 10 and the first radial cable 71. The top end of the second support rod 82 is connected to the reticulated shell structure, and the bottom end is connected to the second inner ring cable 20 and the second radial cable 72.

[0039] In this embodiment, the first support rod 81 and the second support rod 82 are used to transfer the load of the reticulated shell structure to the cable net structure. The top ends of the first support rod 81 and the second support rod 82 can be connected to the inner ring beam 40 or the connecting rod member 60 of the reticulated shell structure by means of pin shafts, and the bottom ends can be connected to the inner ring cable and the radial cable through cable clamps.

[0040] In summary, the embodiment of the present invention provides a cable-split long-span cable-supported reticulated shell structure system, including a reticulated shell structure and a cable net structure arranged below the reticulated shell structure. Among them, the reticulated shell structure has an opening in the center, and the reticulated shell structure includes a first part and a second part, and the span of the first part is greater than that of the second part; the cable net structure includes a first inner ring cable and a second inner ring cable located on the same horizontal plane. The first inner ring cable is stretched along the circumference below the entire reticulated shell structure, and the second inner ring cable is stretched along the circumference below the first part. By adding the second inner ring cable below the first part with a larger span in the reticulated shell structure, the second inner ring cable and the first inner ring cable jointly bear the load transmitted by the upper reticulated shell structure, making the force of the entire structure system more uniform and reasonable, without the need to additionally increase the cross-sectional dimensions of the relevant members at the second part, improving the economy of the structure system, and at the same time not affecting the building effect.

[0041] The above is only the preferred embodiment of the present invention and does not impose any limitation on the present invention. Any person skilled in the art within the technical field, without departing from the technical solution of the present invention, makes any form of equivalent replacement or modification and other changes to the technical solution and technical content disclosed by the present invention, all of which belong to the content of the technical solution of the present invention and are still within the protection scope of the present invention.

Claims

1. A cable-split long-span beam string reticulated shell structure system, characterized in that, it includes a reticulated shell structure and a cable net structure arranged below the reticulated shell structure; wherein, the reticulated shell structure has an opening at the center, and the reticulated shell structure includes a first part and a second part, and the span of the first part is greater than that of the second part; the cable net structure includes a first inner ring cable and a second inner ring cable located on the same horizontal plane. The first inner ring cable is circumferentially arranged below the entire reticulated shell structure, and the second inner ring cable is circumferentially arranged below the first part, and both ends of the second inner ring cable are respectively connected to the first inner ring cable.

2. The cable-split long-span beam string reticulated shell structure system according to claim 1, characterized in that, the reticulated shell structure includes an outer ring beam, an inner ring beam, a sealing edge beam and a number of connecting rod members. The sealing edge beam is located inside the inner ring beam and both ends are respectively connected to the outer ring beam. A number of connecting rod members are respectively spliced in the area between the outer ring beam and the inner ring beam and the area between the inner ring beam and the sealing edge beam. The outer ring beam, the sealing edge beam and the inner ring beam and the connecting rod members between the outer ring beam and the sealing edge beam together form the first part, and the outer ring beam, the inner ring beam and the connecting rod members between the outer ring beam and the inner ring beam together form the second part.

3. The cable-split long-span beam string reticulated shell structure system according to claim 2, characterized in that, there are two sealing edge beams and they are parallel to each other.

4. The cable-split long-span beam string reticulated shell structure system according to claim 3, characterized in that, the two sealing edge beams are arranged at the same height.

5. The cable-split long-span beam string reticulated shell structure system according to claim 4, characterized in that, the vertical height of the inner ring beam is greater than that of the outer ring beam and less than that of the sealing edge beam.

6. The cable-split long-span beam string reticulated shell structure system according to claim 4, characterized in that, the areas of the regions enclosed by the two sealing edge beams and the inner ring beam are the same.

7. The cable-split long-span beam string reticulated shell structure system according to claim 2, characterized in that, the cable net structure further includes a number of first radial cables and a number of second radial cables. The first inner ring cable is connected to the outer ring beam through the first radial cables, and the second inner ring cable is connected to the inner ring beam through the second radial cables.

8. The cable-split long-span beam string reticulated shell structure system according to claim 7, characterized in that, the cable net structure further includes a number of first support rods and a number of second support rods. The top ends of the first support rods are connected to the reticulated shell structure, and the bottom ends are connected to the first inner ring cable and the first radial cables. The top ends of the second support rods are connected to the reticulated shell structure, and the bottom ends are connected to the second inner ring cable and the second radial cables.

9. The cable-split long-span beam string reticulated shell structure system according to claim 2, characterized in that, the connecting rod members are aluminum alloy members.

10. The cable-split long-span beam string reticulated shell structure system according to claim 2, characterized in that, the outer ring beam, the inner ring beam and the sealing edge beam are all steel members.

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