CN113293863A - Dual-layer cable structure system combining connected square type grids and rib ring type grids - Google Patents
Dual-layer cable structure system combining connected square type grids and rib ring type grids Download PDFInfo
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- CN113293863A CN113293863A CN202110594074.2A CN202110594074A CN113293863A CN 113293863 A CN113293863 A CN 113293863A CN 202110594074 A CN202110594074 A CN 202110594074A CN 113293863 A CN113293863 A CN 113293863A
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
- E04B1/342—Structures covering a large free area, whether open-sided or not, e.g. hangars, halls
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B7/00—Roofs; Roof construction with regard to insulation
- E04B7/14—Suspended roofs
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04H—BUILDINGS OR LIKE STRUCTURES FOR PARTICULAR PURPOSES; SWIMMING OR SPLASH BATHS OR POOLS; MASTS; FENCING; TENTS OR CANOPIES, IN GENERAL
- E04H3/00—Buildings or groups of buildings for public or similar purposes; Institutions, e.g. infirmaries or prisons
- E04H3/10—Buildings or groups of buildings for public or similar purposes; Institutions, e.g. infirmaries or prisons for meetings, entertainments, or sports
- E04H3/12—Tribunes, grandstands or terraces for spectators
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Abstract
The invention relates to the technical field of building structures, in particular to a combined square and rib ring type grid double-layer cable structure system. The system combines the cable net of the square connected grid with the radial cable system, the inner end of the radial cable system is connected with the ring cable, the outer end of the radial cable system is connected with the cable net of the square connected grid, the uniform distribution of the ring cable force and the large reduction of the unbalanced force of the cable clamp can be realized, the building requirement can be met by the complete cable structure, an additional steel structure canopy is not required to be arranged, the installation of the whole roof structure can be completed by one-time lifting and tensioning, the construction convenience is obviously improved, and the construction period is greatly shortened.
Description
Technical Field
The invention relates to the technical field of building structures, in particular to a combined square and rib ring type grid double-layer cable structure system.
Background
The prestressed cable structure consists of flexible cables only in tension and rigid members 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 tension state in the structure 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 the concrete member and the steel member, and the light and transparent building effect can be built.
Currently, stadiums such as track and soccer stadiums are constructed with a stand structure 101 surrounding a central field, a roof structure 102 and a roof support structure 103, as shown in fig. 1. The main functions of the roof structure 102 are to shield stands and suspended corridors, lighting and sound equipment, etc. Because the inside no post space that needs to build of stadium, and the place sky generally is open-air form in the middle of the stadium, therefore the roof usually arranges around the place, only covers the stand region, is constructed by the large-span structure of central large-opening, and central open-ended shape generally matches with the peripheral stand inside edge shape in place.
The prestressed cable structure is widely applied to stadium roof structures due to the obvious advantages in the aspects of stress performance and building effect. The roof cable structure is typically comprised of looped cables 201 near the central opening and span cables between looped cables 201 and outer boundary 202. According to the building modeling requirement, the span-wise cable system can adopt a connected square grid cable net 203 and also can adopt a radial cable system 204, as shown in figure 2. For the double-layer cable structure, the upper layer and the lower layer may both adopt the connected square grid cable net 203, or both adopt the radial cable system 204, or the upper layer adopts the connected square grid cable net 203, and the lower layer adopts the radial cable system 204, or vice versa, as shown in fig. 3.
When the span cable system between the ring cable and the outer boundary is a square grid, the span cable system inevitably has component force in the tangential direction of the ring cable, and large unbalanced force is generated at the cable clamp node connected with the span cable system and the ring cable, so that the volume of the cable clamp is increased, even a special balance cable is required to be arranged to resist the unbalanced force at the cable clamp, the structural design and construction are difficult, and the engineering cost is increased. In addition, in order to meet the building requirements, an additional steel structure cantilever 205 can be arranged in the area enclosed by the ring cables, as shown in fig. 4. The structure and stress at the joint of the cable structure and the steel structure cantilever 205 are complex due to the structural arrangement mode, the steel structure cantilever 205 needs to be installed independently after the cable structure is tensioned, the design difficulty is high, the construction period is long, and the risk is high.
The information disclosed in this background section is only for enhancement of understanding of the general background of the invention and should not be taken as an acknowledgement or any form of suggestion that this information forms the prior art already known to a person skilled in the art.
Disclosure of Invention
The invention aims to provide a combined square-connected and rib-ring-shaped grid combined double-layer cable structure system to solve the technical problems in the prior art. The system combines the cable net of the square connected grid with the radial cable system, the inner end of the radial cable system is connected with the ring cable, the outer end of the radial cable system is connected with the cable net of the square connected grid, the uniform distribution of the ring cable force and the large reduction of the unbalanced force of the cable clamp can be realized, the building requirement can be met by the complete cable structure, an additional steel structure canopy is not required to be arranged, the installation of the whole roof structure can be completed by one-time lifting and tensioning, the construction convenience is obviously improved, and the construction period is greatly shortened.
In order to achieve the purpose, the invention adopts the following technical scheme:
the invention provides a combined square and rib ring grid double-layer cable structure system, comprising: the device comprises an upper layer cable net, a lower layer cable system, a ring cable brace rod and a span cable system brace rod; the upper layer cable net adopts an arrangement form of combination of connected square type grids and rib ring type grids; the ring cable stay bar and the span cable tie stay bar are positioned between the upper layer cable net and the lower layer cable tie and are connected with the corresponding upper layer cable net node and the lower layer cable tie node.
Preferably, the upper layer cable net comprises: the upper ring cable, the upper radial cable, the upper cross cable and the upper balance cable; the upper cable is positioned in the middle area of the roof and encloses a shape of a central opening of the roof; the inner ends of the upper-layer radial cables are connected with the upper ring cable nodes, and the plane projection of the upper-layer radial cables is consistent with or tends to be consistent with the direction of an angular bisector of the plane projection of the two adjacent sections of upper ring cables; the upper-layer crossed cables form a series of connected square grids, upper-layer crossed cable nodes at the outermost circle are connected with the outer boundary, and upper-layer crossed cable nodes at the innermost circle are connected to the outer ends of the upper-layer radial cables; the upper-layer balance cables are arranged at the connecting nodes of the upper-layer radial cables and the upper-layer cross cables and sequentially contact the connecting nodes of the upper-layer radial cables and the upper-layer cross cables to form a closed ring.
Preferably, the lower layer cable system comprises a lower ring cable and a lower layer radial cable; the lower ring cable is positioned in the middle area of the roof; the outer end of the lower-layer radial cable is connected with the outer boundary, the inner end of the lower-layer radial cable is connected with the lower ring cable node, and the plane projection of the lower-layer radial cable is consistent with or tends to be consistent with the direction of an angular bisector of the plane projection of the two adjacent segments of lower ring cables.
Preferably, the looped cable brace rod is connected with an upper looped cable node and a lower looped cable node; when the horizontal projections of the upper ring cable and the lower ring cable are overlapped, the ring cable support rods are vertically arranged; when the horizontal projections of the upper ring cable and the lower ring cable are not overlapped, the ring cable support rod is obliquely arranged.
Preferably, the span-wise cable tie brace is connected with the upper-layer cross cable node and the lower-layer radial cable node, and the span-wise cable tie brace is vertically arranged.
Preferably, the double-layer cable structure system combining the connected square type grid and the rib ring type grid, provided by the invention, needs to apply prestress, the prestress is balanced with the weight of a roof, and the structural rigidity requirement is met.
By adopting the technical scheme, the invention has the following beneficial effects:
1. according to the invention, the upper-layer balance cable is arranged between the upper-layer radial cable and the upper-layer cross cable connecting node, so that the annular component force of the upper-layer cross cable at the innermost node can be balanced, and the upper-layer radial cable only transmits the radial component force of the upper-layer cross cable; furthermore, the direction of the angular bisector of the projection of the upper layer radial cable plane and the projection of the adjacent two sections of upper ring cables is kept consistent or tends to be consistent, so that the cable force of the ring cables is more uniform, the unbalanced force at the cable clamp is greatly reduced relative to the mode that the upper layer crossed cable is directly connected with the upper ring cables, the volume of the cable clamp is reduced, and the structural safety and the economical efficiency are improved.
2. The upper ring cables are arranged at the opening of the roof, the upper ring cables are directly enclosed to form the shape of the central opening of the roof required by the building, and the upper ring cables are connected with other roof structures through the upper layer radial cables and the ring cable support rods without arranging a steel structure canopy. The mode can realize that the whole roof structure can be installed only by once lifting and tensioning, so that the construction convenience is obviously improved, and the construction period is greatly shortened.
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 diagram of the architecture of a stadium in the prior art.
Fig. 2 is a schematic view of a prior art span cable system of a stadium roof cable structure.
Fig. 3 is a schematic diagram of a stadium roof cable architecture in the prior art.
Fig. 4 is a schematic diagram of a steel structure cantilever shed for a stadium roof in the prior art.
Fig. 5 is an isometric view of a combined square grid and rib-ring grid two-layer cable structure system according to an embodiment of the present invention.
Fig. 6 is a plan view of a combined square grid and rib ring grid two-layer cable structure system according to an embodiment of the present invention.
Fig. 7 is an elevation view of a combined square grid and rib ring grid double-layer cable structure system according to an embodiment of the present invention.
Fig. 8 is an exploded view of a combined square grid and rib-ring grid dual-layer cable structure system according to an embodiment of the present invention.
Fig. 9 is a detail exploded view of a combined square grid and rib ring grid double-layer cable structure system according to an embodiment of the present invention.
Wherein: 101 is a stand structure, 102 is a roof structure, 103 is a roof supporting structure, 201 is a looped cable, 202 is an outer boundary, 203 is a connected square grid cable net, 204 is a radial cable system, 205 is a steel structure cantilever shed, 301 is an upper looped cable, 302 is an upper layer radial cable, 303 is an upper layer cross cable, 304 is an upper layer balance cable, 305 is a lower looped cable, 306 is a lower layer radial cable, 307 is a looped cable brace rod, 308 is a spanning cable system brace rod, 401 is an upper layer cable net, 402 is a lower layer cable system, 501 is an upper loop cable node, 502 is a connecting node of the upper layer radial cable and the upper layer cross cable, 503 is an upper layer cross cable node, 504 is a lower looped cable node, 505 is a lower layer radial cable node, 506 is a looped cable brace rod upper end point, 507 is a looped cable brace rod lower end point, 508 is a spanning cable system brace rod upper end point, and 509 is a spanning cable system brace rod lower end point.
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, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; 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 detailed description of embodiments of the invention refers to the accompanying drawings. It should be understood that the detailed description and specific examples, while indicating the present invention, are given by way of illustration and explanation only, not limitation.
As shown in fig. 5 to 9, the present embodiment provides a combined square grid and rib ring grid double-layer cable structure system, which includes: an upper layer cable net 401, a lower layer cable system 402, a ring cable stay 307 and a span cable system stay 308; the upper layer cable net 401 adopts an arrangement form of combination of connected square type and rib ring type grids; the looped cable stay bar 307 and the span cable system stay bar 308 are positioned between the upper layer cable net 401 and the lower layer cable system 402, and the looped cable stay bar 307 and the span cable system stay bar 308 are connected with the corresponding nodes of the upper layer cable net 401 and the lower layer cable system 402. The system combines the cable net of the square connected grid with the radial cable system, the inner end of the radial cable system is connected with the ring cable, the outer end of the radial cable system is connected with the cable net of the square connected grid, the uniform distribution of the ring cable force and the large reduction of the unbalanced force of the cable clamp can be realized, the building requirement can be met by the complete cable structure, an additional steel structure canopy is not required to be arranged, the installation of the whole roof structure can be completed by one-time lifting and tensioning, the construction convenience is obviously improved, and the construction period is greatly shortened.
Preferably, the upper layer cable net 401 includes: an upper ring cable 301, an upper layer radial cable 302, an upper layer cross cable 303 and an upper layer balance cable 304; the upper ring cable 301 is positioned in the middle area of the roof and encloses into a shape of a central opening of the roof; the inner end of the upper layer radial cable 302 is connected with the upper ring cable node 501, and the plane projection of the upper layer radial cable 302 is consistent with or tends to be consistent with the direction of an angle bisector of the plane projection of two adjacent segments of upper ring cables 301; the upper-layer crossed cables 303 form a series of connected square grids, the upper-layer crossed cable nodes 503 at the outermost circle are connected with the outer boundary 202, and the upper-layer crossed cable nodes 503 at the innermost circle are connected with the outer ends of the upper-layer radial cables 302; the upper layer balance cables 304 are arranged at the upper layer radial cable and upper layer cross cable connecting nodes 502, and are sequentially connected with the upper layer radial cable and upper layer cross cable connecting nodes 502 to form a closed ring.
Preferably, the lower cable system 402 comprises a lower looped cable 305 and a lower radial cable 306; the lower looped cable 305 is located in the middle area of the roof; the outer end of the lower radial cable 306 is connected with the outer boundary 202, the inner end of the lower radial cable 306 is connected with the lower annular cable node 504, and the plane projection of the lower radial cable 306 is consistent with or tends to be consistent with the direction of the angle bisector of the plane projection of the two adjacent segments of the lower annular cables 305.
Preferably, the looped cable stay 307 connects the upper looped cable node 501 and the lower looped cable node 504; when the horizontal projections of the upper looped cable 301 and the lower looped cable 305 are overlapped, the looped cable stay 307 is vertically arranged; when the horizontal projections of the upper looped cable 301 and the lower looped cable 305 are not overlapped, the looped cable stay 307 is arranged along the oblique direction.
Preferably, the span-wise rigging brace 308 connects the upper-layer cross cable node 503 and the lower-layer radial cable node 505, and the span-wise rigging brace 308 is vertically arranged.
In summary, the upper balance cable 304 is arranged between the upper radial cable and the upper cross cable connection node 502, so that the circumferential component force of the upper cross cable 303 at the innermost ring node can be balanced, and the upper radial cable 302 only transmits the radial component force of the upper cross cable 303; further, the direction of the plane projection of the upper layer radial cable 302 is consistent or tends to be consistent with the direction of the angle bisector of the plane projection of the two adjacent sections of upper ring cables 301, so that the cable force of the upper ring cables 301 is more uniform, the unbalanced force at the cable clamp is greatly reduced relative to the mode that the upper layer cross cable 303 is directly connected with the upper ring cables 301, the volume of the cable clamp is reduced, and the structural safety and the economical efficiency are improved.
The upper ring cable 301 is arranged at the opening of the roof, directly encloses to form the shape of the central opening of the roof required by the building, and is connected with the rest roof structure through the upper layer radial cable 302 and the ring cable stay bar 307 without arranging the steel structure cantilever 205. The mode can realize that the whole roof structure can be installed only by once lifting and tensioning, so that the construction convenience is obviously improved, and the construction period is greatly shortened.
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 invention 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 (5)
1. A kind of united square and rib ring type grid combined double-deck cable structure system, characterized by that, including: the device comprises an upper layer cable net, a lower layer cable system, a ring cable brace rod and a span cable system brace rod;
the upper layer cable net adopts an arrangement form of combination of connected square type grids and rib ring type grids;
the ring cable stay bar and the span cable tie stay bar are positioned between the upper layer cable net and the lower layer cable tie and are connected with the corresponding upper layer cable net node and the lower layer cable tie node.
2. The combined square and rib-ring grid double-layer cable structural system of claim 1, wherein said upper cable net comprises: the upper ring cable, the upper radial cable, the upper cross cable and the upper balance cable;
the upper cable is positioned in the middle area of the roof and encloses a shape of a central opening of the roof;
the inner ends of the upper-layer radial cables are connected with the upper ring cable nodes, and the plane projection of the upper-layer radial cables is consistent with or tends to be consistent with the direction of an angular bisector of the plane projection of the two adjacent sections of upper ring cables;
the upper-layer crossed cables form a series of connected square grids, upper-layer crossed cable nodes at the outermost circle are connected with the outer boundary, and upper-layer crossed cable nodes at the innermost circle are connected to the outer ends of the upper-layer radial cables;
the upper-layer balance cables are arranged at the connecting nodes of the upper-layer radial cables and the upper-layer cross cables and sequentially contact the connecting nodes of the upper-layer radial cables and the upper-layer cross cables to form a closed ring.
3. The combined square and rib-ring grid double-layer cable structural system of claim 2, wherein said lower layer cable system comprises lower ring cables and lower radial cables;
the lower ring cable is positioned in the middle area of the roof;
the outer end of the lower-layer radial cable is connected with the outer boundary, the inner end of the lower-layer radial cable is connected with the lower ring cable node, and the plane projection of the lower-layer radial cable is consistent with or tends to be consistent with the direction of an angular bisector of the plane projection of the two adjacent segments of lower ring cables.
4. The combined square and rib-ring grid double-layer cable structural system of claim 3, wherein said looped cable brace connects upper and lower looped cable nodes;
when the horizontal projections of the upper ring cable and the lower ring cable are overlapped, the ring cable support rods are vertically arranged;
when the horizontal projections of the upper ring cable and the lower ring cable are not overlapped, the ring cable support rod is obliquely arranged.
5. The combined square and rib-ring grid double-layer cable structural system according to claim 4, wherein the span-wise cable tie brace is connected with an upper-layer cross cable node and a lower-layer radial cable node, and the span-wise cable tie brace is vertically arranged.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202110594074.2A CN113293863A (en) | 2021-05-28 | 2021-05-28 | Dual-layer cable structure system combining connected square type grids and rib ring type grids |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202110594074.2A CN113293863A (en) | 2021-05-28 | 2021-05-28 | Dual-layer cable structure system combining connected square type grids and rib ring type grids |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117684779A (en) * | 2024-02-01 | 2024-03-12 | 北京工业大学 | Composite structure system with built-in reinforcement cable net of existing grid structure and installation and construction method |
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2021
- 2021-05-28 CN CN202110594074.2A patent/CN113293863A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117684779A (en) * | 2024-02-01 | 2024-03-12 | 北京工业大学 | Composite structure system with built-in reinforcement cable net of existing grid structure and installation and construction method |
| CN117684779B (en) * | 2024-02-01 | 2024-05-03 | 北京工业大学 | Composite structure system with built-in reinforcement cable net of existing grid structure and installation and construction method |
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