CN216973903U

CN216973903U - Large-opening single-layer cable net structure combining connected square type grids and rib ring type grids

Info

Publication number: CN216973903U
Application number: CN202121184805.8U
Authority: CN
Inventors: 朱忠义; 白光波; 陈一; 王毅; 张琳; 邓旭洋; 王玮; 孙桐海
Original assignee: Beijing Institute of Architectural Design Group Co Ltd
Current assignee: Beijing Institute of Architectural Design Group Co Ltd
Priority date: 2021-05-28
Filing date: 2021-05-28
Publication date: 2022-07-15
Anticipated expiration: 2031-05-28

Abstract

The utility model relates to the technical field of structural design of constructional engineering, in particular to a large-opening single-layer cable net structure combining a connected square grid and a rib ring grid. The utility model comprises the following steps: a ring cable, a radial cable, a cross cable and a balance cable; the ring cable is positioned in the middle area of the roof and encloses a required central opening shape of the roof; the inner end of the radial cable is connected with the ring cable node, and the outer end of the radial cable is connected with the crossed cable node at the innermost ring; the cross cable at the outermost ring is connected with the outer boundary; the balance cables are arranged at the connecting nodes of the radial cables and the cross cables and sequentially link the connecting nodes of the radial cables and the cross cables to form a closed ring. The utility model combines the crossed cables of the square grid with the radial cables, the inner ends of the radial cables are connected with the ring cables, and the outer ends of the radial cables are connected with the crossed cables, so that the uniform distribution of the cable force of the ring cables can be realized, and the unbalanced force of the cable clamp can be greatly reduced.

Description

Large-opening single-layer cable net structure combining connected square type grids and rib ring type grids

Technical Field

The utility model relates to the technical field of structural design of constructional engineering, in particular to a large-opening single-layer cable net structure combining a connected square grid and a rib ring grid.

Background

The prestressed cable structure consists of a flexible cable only in tension and a rigid member bearing tension and compression, and is a large-span structural system with strong spanning capability and good stress performance. Because the cable is made of high-strength materials and is in a tensioned state in the structural bearing process, the stability problem of the member does not exist, and the stress efficiency is high, the section size of the cable is far smaller than that of a concrete member and a steel member, and a light and transparent building effect can be built. Due to the advantages, the prestressed cable structure is widely applied to roof structures of large-span buildings such as stadiums, exhibition halls and the like.

Currently, when applied to stadium roof structures, the cable structures are generally composed of a looped cable 1 in the center of the roof and a span cable system between the looped cable 1 and the outer boundary. According to the requirement of building modeling, the span cable system can adopt cross cables 3 of a square grid, and also can adopt radial cables 4, as shown in figure 1. The common stadium roof structure mainly adopts a double-layer cable structure system, but in recent years, a saddle-shaped single-layer cable net is also adopted as an engineering case of the stadium roof structure, namely, the roof structure only consists of a layer of ring cables 1 and a layer of span cable system, as shown in figure 2.

When the ring cable is connected with the outer boundary by the cross cable, because the cross cable inevitably has component force in the tangential direction of the ring cable, larger unbalanced force can be generated at the cable clamp node where the cross cable is connected with the ring cable, the volume of the cable clamp is increased, even special balance cables need to be arranged to resist the unbalanced force at the cable clamp, which brings difficulty to structural design and construction, and increases the construction cost.

The information disclosed in this background section is only for enhancement of understanding of the general background of the utility model and should not be taken as an acknowledgement or any form of suggestion that this information forms the prior art that is already known to a person skilled in the art.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a large-opening single-layer cable net structure combining a connected square type grid and a rib ring type grid, wherein cross cables of the connected square type grid are combined with radial cables, the inner ends of the radial cables are connected with ring cables, and the outer ends of the radial cables are connected with the cross cables, so that the uniform distribution of the cable force of the ring cables can be realized, and the unbalanced force of cable clamps can be greatly reduced.

In order to achieve the purpose, the utility model adopts the following technical scheme:

the utility model provides a large-opening single-layer cable net structure combining a square connection type grid and a rib ring type grid, which comprises: a looped cable, a radial cable, a crossed cable and a balance cable; the ring cable is positioned in the middle area of the roof and encloses a required central opening shape of the roof; the inner end of the radial cable is connected with the annular cable node, and the outer end of the radial cable is connected with the crossed cable node at the innermost ring; the cross cable at the outermost ring is connected with the outer boundary; the balance cables are arranged at the connecting nodes of the radial cables and the cross cables and sequentially link the connecting nodes of the radial cables and the cross cables to form a closed ring.

Preferably, the intersecting strands form a connected square grid.

Preferably, the ring cables, radial cables and balancing cables form a rib-ring type grid.

Preferably, the radial cables are consistent with or tend to be consistent with the directions of angle bisectors of plane projections of two adjacent segments of the circular cables.

By adopting the technical scheme, the utility model has the following beneficial effects:

1. the utility model provides a large-opening single-layer cable net structure combining square grids and rib ring grids, which has the characteristics of simple building effect and strong rhythm sense, and is convenient and quick to construct and short in period.

2. According to the utility model, the balance cable is arranged between the radial cable and the cross cable connecting node, so that the circumferential component force of the cross cable at the innermost ring node can be balanced, and the radial cable only transmits the radial component force of the cross cable; furthermore, the radial cables are strictly or approximately arranged along the direction of an angular bisector of the plane projection of the two adjacent ring cables, so that the cable force of the ring cables is more uniform, and the unbalanced force at the cable clamp is greatly reduced relative to the mode that the crossed cables are directly connected with the ring cables, thereby reducing the volume of the cable clamp and improving the safety and the economy of the structure.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and other drawings can be obtained by those skilled in the art without creative efforts.

Fig. 1 is a schematic plan view of a prior art stadium roof single layer cable structure.

Fig. 2 is an axial view of a prior art stadium roof single layer cable structure.

Fig. 3 is a plan view of a combined square-connected and rib-ring type grid large-opening single-layer cord net structure provided by the embodiment of the utility model.

FIG. 4 is an isometric view of a combination square and rib ring grid large open single ply cord mesh construction provided by an embodiment of the present invention.

Icon: 1-a becket rope; 2-an outer boundary; 3-a cross cable; 4-radial cables; 5-balance rope.

Detailed Description

The technical solutions of the present invention will be described clearly and completely with reference to the accompanying drawings, and it should be understood that the described embodiments are some, but not all embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

The following describes in detail embodiments of the present invention with reference to the drawings. It should be understood that the detailed description and specific examples, while indicating the preferred embodiment of the utility model, are given by way of illustration and explanation only, not limitation.

Referring to fig. 3 and 4, the present embodiment provides a large-opening single-layer cable net structure with combined square and rib ring type grids, which includes: the cable comprises a ring cable 1, a radial cable 4, a cross cable 3 and a balance cable 5; the ring cable 1 is positioned in the middle area of the roof and encloses a required central opening shape of the roof; the inner ends of the radial cables 4 are connected with the nodes of the ring cables 1, and the outer ends of the radial cables 4 are connected with the nodes of the crossed cables 3 at the innermost ring; the cross cable 3 at the outermost ring is connected with the outer boundary 2; the balance cables 5 are arranged at the connecting nodes of the radial cables 4 and the cross cables 3, and sequentially link the connecting nodes of the radial cables 4 and the cross cables 3 to form a closed ring. Preferably, the crossed cables 3 form a connected square grid according to the requirement of building modeling. Preferably, the ring cables 1, the radial cables 4 and the balancing cables 5 form a rib-ring type grid. Therefore, in the embodiment, the crossed cables 3 of the square-connected grid are combined with the radial cables 4, the inner ends of the radial cables 4 are connected with the ring cables 1, and the outer ends of the radial cables 4 are connected with the crossed cables 3, so that the uniform cable force distribution of the ring cables 1 can be realized, and the unbalanced force of a cable clamp is greatly reduced.

Preferably, the radial cables 4 are consistent with or tend to be consistent with the directions of the angle bisectors of the plane projections of the two adjacent segments of the looped cables 1. The radial cables 4 are strictly or approximately arranged along the direction of an angular bisector of the plane projection of the two adjacent sections of the ring cables 1, so that the cable force of the ring cables 1 is more uniform, the unbalanced force at the cable clamp is greatly reduced relative to the mode that the cross cables 3 are directly connected with the ring cables 1, the volume of the cable clamp is reduced, and the structural safety and the economical efficiency are improved.

In summary, by adopting the technical scheme, the utility model has the following advantages:

1. the single-layer cable net structure is formed by combining square grids and ribbed ring grids, has the characteristics of simple building effect and strong rhythm sense, and is convenient and quick to construct and short in period.

2. According to the utility model, the balance cable is arranged between the connection nodes of the radial cable and the cross cable, so that the circumferential component force of the cross cable at the innermost node can be balanced, and the radial cable only transmits the radial component force of the cross cable; furthermore, the radial cables are strictly or approximately arranged along the direction of an angular bisector of the plane projection of the two adjacent ring cables, so that the cable force of the ring cables is more uniform, and the unbalanced force at the cable clamp is greatly reduced relative to the mode that the crossed cables are directly connected with the ring cables, thereby reducing the volume of the cable clamp and improving the safety and the economy of the structure.

Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; while the utility model has been described in detail and with reference to the foregoing embodiments, it will be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; and the modifications or the substitutions do not make the essence of the corresponding technical solutions depart from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. A large-opening single-layer cable net structure combining square grids and rib ring grids is characterized by comprising: a looped cable, a radial cable, a crossed cable and a balance cable; the ring cable is positioned in the middle area of the roof and surrounds the central opening shape of the roof; the inner end of the radial cable is connected with the ring cable node, and the outer end of the radial cable is connected with the crossed cable node at the innermost ring; the cross cable at the outermost ring is connected with the outer boundary; the balance cables are arranged at the connecting nodes of the radial cables and the cross cables, and the connecting nodes of the radial cables and the cross cables are sequentially connected to form a closed ring.

2. The combined large open single layer cable mesh structure of united square and rib ring type mesh of claim 1 wherein said intersecting cables form united square mesh.

3. The combined large open single layer cable mesh structure of united square and rib ring type mesh according to claim 1 wherein the ring cables, radial cables and balance cables form a rib ring type mesh.

4. The large-opening single-layer cable net structure combining the square-connected type and rib-ring type grids of claim 1, wherein the radial cables are consistent or nearly consistent with the direction of the angle bisector of the plane projection of the two adjacent segments of the ring cables.