CN216641106U - Spoke type wave cable membrane structure roof with three-dimensional outer ring truss - Google Patents
Spoke type wave cable membrane structure roof with three-dimensional outer ring truss Download PDFInfo
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- CN216641106U CN216641106U CN202120356051.3U CN202120356051U CN216641106U CN 216641106 U CN216641106 U CN 216641106U CN 202120356051 U CN202120356051 U CN 202120356051U CN 216641106 U CN216641106 U CN 216641106U
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Abstract
The utility model discloses a spoke type wave cable membrane structure roof with a three-dimensional outer ring truss, wherein an upper pressed outer ring, a lower pressed outer ring and a modeling outer convex ring are respectively connected through a diagonal web member to form the three-dimensional ring truss; the tensioned inner ring cable is connected with the upper pressed outer ring through an upper radial cable, and the tensioned inner ring cable is connected with the lower pressed outer ring through a lower radial cable to form a spoke type waveform roof, and the three-dimensional ring truss can reduce radial compression deformation of the roof and has attractive appearance; the closed force transmission path is formed, so that the prestress loss of the upper radial cable and the lower radial cable is reduced; the whole cable membrane structure roof gives full play to the mechanical efficiency of various materials and realizes the perfect combination of shape and efficiency. The structure has good earthquake resistance and light dead weight, and has wide applicability in large public buildings such as stadiums, football stadiums and the like.
Description
Technical Field
The utility model relates to the technical field of constructional engineering, in particular to a spoke type corrugated cable membrane structure roof with a three-dimensional outer ring truss.
Background
At present, a tension structure is a structural form with the highest stress efficiency of a component, and as a typical tension structure, a spoke type cable membrane structure is a stress mechanism derived from bicycle spokes, and is a structural system evolved by combining the characteristic of light self weight of a membrane material, and the structural system is characterized in that: there is a relatively rigid outer ring under compression, connected to a central inner tension ring cable by radially arranged guy cables or cable trusses, the radial cable structural units usually consisting of radial load bearing cables, radial stabilizing cables and struts or construction cables between them. The tension force of the stay cable or the cable truss is balanced with the pressure of the outer ring, and the whole structure belongs to a self-balancing stress system. The spoke type large-span stretching cable membrane structure has the advantages of light weight, reasonable stress and the like, and can span very large span.
The spoke type cable membrane structure is divided according to the number of layers of radial cables and can be divided into a single layer and a double layer. The single-layer spoke type tensioning structure needs the height of an external pressure ring to fluctuate so as to form a saddle-shaped space curved surface model and provide larger vertical rigidity for the single-layer spoke type cable membrane structure.
Different from a single-layer spoke type cable membrane structure, an upper radial cable and a lower radial cable of the double-layer spoke type cable membrane structure form larger vertical rigidity, so that the space modeling does not need to be made into a saddle-shaped curved surface. The double-layer spoke type cable membrane structure is divided into an outward convex type and an inward concave type, the outward convex cable truss has the possibility of lateral instability, the inward concave cable truss does not have the problem, and the inward concave cable truss is formed by the upper radial cables, the lower radial cables and the annular structural cables.
At present, stadiums adopting spoke type wave cable membrane structures, such as plane tension rings and pressure rings of lotus stadiums in the Foshan century, are circular, and pull cables are stressed uniformly, but as stadium runways and football fields in the stadiums are close to ellipses, arrangement of stands and roofs is circular, so that reasonable arrangement of building use functions is limited. The utility model is suitable for four conditions that the inner ring and the outer ring are circular, the inner ring and the outer ring are oval, the inner ring is circular, the outer ring is oval, and the inner ring is oval.
The conventional inwards concave spoke type cable membrane structure is generally provided with two outer ring beams, a plane truss is formed between the two outer ring beams through web members, but the radial compressive deformation of an outer ring is overlarge due to the small radial rigidity of the plane truss, so that the prestress loss of a radial cable is large.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide a spoke type corrugated cable membrane structure roof with a three-dimensional outer ring truss, which can better meet the requirements of the arrangement of stadium planes on the shapes of stands and roofs in a stadium aiming at the problem that the stadium roof plane adopts a circular shape.
The utility model relates to a spoke type wave cable membrane structure roof with a three-dimensional outer ring truss, which comprises an upper pressed outer ring, a lower pressed outer ring, a modeling outer convex ring and a pulled inner ring cable, wherein the elevation of the upper pressed outer ring is greater than that of the lower pressed outer ring, and any two of the upper pressed outer ring, the lower pressed outer ring and the modeling outer convex ring are respectively connected through an upper inclined web member, a lower inclined web member and a vertical inclined web member which are uniformly distributed to form the three-dimensional ring truss; the tensioned inner ring cable is connected with the upper compression outer ring through evenly distributed upper radial cables, and the tensioned inner ring cable is connected with the lower compression outer ring through evenly distributed lower radial cables to form the spoke type waveform roof.
The utility model relates to a spoke type wave cable membrane structure roof with a three-dimensional outer ring truss, wherein the outer ring of the structure is provided with a triangular three-dimensional ring truss which is hinged and fixed on a reinforced concrete column of a stand. The upper radial cable is a bearing cable, the outer end of the upper radial cable is fixed on the upper pressure outer ring, and the inner side of the upper radial cable is connected to the tension inner ring cable; the lower radial cable is a stable cable, the outer end of the lower radial cable is fixed on the lower pressed outer ring, and the inner side of the lower radial cable is connected to the tensioned inner ring cable. And a construction rope is arranged between the lower radial rope and the upper radial rope and provides a supporting function for the tension membrane. The tensioned inner ring cable is connected with a steel structure system through an upper radial cable and a lower radial cable to form a stable main cable system, a spatial integral prestressed cable net is formed by applying pretension, and the displacement of a membrane structure under different working conditions is controlled through the synergistic action of other constructional cables.
In the above aspect, it is preferable that the upper pressed outer ring, the lower pressed outer ring, and the shaping convex ring may be all circular or elliptical.
It is also preferable that the centers of the upper pressed outer ring, the lower pressed outer ring, and the sculpted convex ring are located at the same elevation, respectively.
It may also be preferred that the tensioned inner cords be round or oval in shape.
It may also be preferred that the roof is supported on a reinforced concrete column.
It may also be preferred that the reinforced concrete column is hinged to the roof.
It may also be preferred that the upper radial cords are hingedly connected to the tensioned inner ring cord and the upper stressed outer ring; the lower radial cables are hinged with the tension inner ring cable and the lower compression outer ring.
It is also preferable that the projections of the upper radial cables and the lower radial cables in the horizontal plane are distributed at intervals to form the wave-shaped roof.
It may also be preferred that the upper radial cords are connected to the lower radial cords by hoop-construction cords.
The utility model has the following advantages:
according to the spoke type wave cable membrane structure roof with the three-dimensional outer ring truss, the modeling outer convex rings are arranged outside the upper pressed outer ring and the lower pressed outer ring, so that the three ring beams are connected through the diagonal web members to form the triangular structure three-dimensional truss with high rigidity, the radial compression deformation of the roof can be greatly reduced, the prestress loss of the upper radial cable and the lower radial cable is reduced, and the modeling is attractive; a tension inner ring cable is arranged on the inner side of the roof, and a spoke type waveform roof is formed between the inner ring and the outer ring through an upper radial cable and a lower radial cable to form a closed force transmission path; the whole cable membrane structure roof gives full play to the mechanical efficiency of various materials, realizes the perfect combination of shape and efficiency, has light dead weight and good seismic performance, and has wide applicability in large-scale public buildings such as stadiums, football stadiums and the like.
Drawings
Fig. 1 is an overall schematic view of a spoke type corrugated cable membrane structural roof with a three-dimensional outer ring truss.
Fig. 2 is a schematic plan view of the spoke type corrugated cable membrane structural roof with a three-dimensional outer ring truss of the present invention.
Fig. 3 is a structural cross-sectional view of the spoke type wave cable membrane structural roof with a three-dimensional outer ring truss.
Fig. 4 is a schematic view of a ring cable clamp of the spoke type wave cable membrane structure roof with a three-dimensional outer ring truss.
FIG. 5 is a cross-sectional view of a ring cable clamp of the spoke type wave cable membrane structure roof with a three-dimensional outer ring truss.
FIG. 6 is a front view of the connection state of the upper radial cables and the upper chords of the ring truss of the spoke type corrugated cable membrane structural roof with the three-dimensional outer ring truss.
Fig. 7 is a side view of the connection state of the upper radial cables and the upper chords of the ring truss of the spoke type corrugated cable membrane structural roof with the three-dimensional outer ring truss of the utility model.
Fig. 8 is a front view of the connection state of the lower radial cables and the lower chords of the ring truss of the spoke type corrugated cable membrane structural roof with the three-dimensional outer ring truss.
Fig. 9 is a side view of the connection state of the lower radial cables and the lower chords of the ring truss of the spoke type corrugated cable membrane structural roof with the three-dimensional outer ring truss.
Fig. 10 is a front view of a radial cable structure cable clamp of the spoke type corrugated cable membrane structural roof with a three-dimensional outer ring truss.
FIG. 11 is a side view of a radial cable structure cable clamp of the spoke type corrugated cable membrane structural roof with a three-dimensional outer ring truss of the present invention.
In the figure, 1 is an upper pressed outer ring, 2 is a lower pressed outer ring, 3 is a modeling outer convex ring, 4 is a pulled inner ring cable, 5a is an upper diagonal web member, 5b is a lower diagonal web member, 5c is a vertical diagonal web member, 6 is a three-dimensional ring truss, 7 is an upper radial cable, 8 is a lower radial cable, 9 is a reinforced concrete column, 10 is a construction cable, 11 is a radial cable head, 12 is a ring cable clamp, 13 is a support, and 14 is a tension membrane.
Detailed Description
The following examples are intended to illustrate the utility model but are not intended to limit the scope of the utility model.
Examples
A spoke type wave cable membrane structure roof with a three-dimensional outer ring truss is disclosed, and comprises an upper pressed outer ring 1, a lower pressed outer ring 2, a modeling outer convex ring 3 and a tension inner ring cable 4, wherein the elevation of the upper pressed outer ring 1 is larger than that of the lower pressed outer ring 2, and any two of the upper pressed outer ring 1, the lower pressed outer ring 2 and the modeling outer convex ring 3 are respectively connected through an upper inclined web member 5a, a lower inclined web member 5b and a vertical web member 5c which are uniformly distributed to form a three-dimensional ring truss 6; the tensioned inner ring cables 4 are connected with the upper pressed outer ring 1 through evenly distributed upper radial cables 7, and the tensioned inner ring cables 4 are connected with the lower pressed outer ring 2 through evenly distributed lower radial cables 8, so that the spoke type wave-shaped roof is formed.
The stress principle and the structural characteristics of the spoke type corrugated cable membrane structure roof with the three-dimensional outer ring truss are as follows: the stiffness of the structural system is substantially provided by the pre-stress, rather than deriving from the intrinsic stiffness of the component material as in conventional structures. Due to the adjustability of the prestress, the overall rigidity of the structure can be obtained by adjusting the magnitude of the prestress. The cables, which are the main elements, can provide a great pretension with a relatively small cross-section due to their high strength, while the overall stability of the outer ring truss and the local stability of the elements are also not difficult to satisfy. Compared with the convex cable truss, the concave cable truss has no lateral instability possibility. The high-strength light-weight roofing material membrane can make the structure have very large spanning capacity. The annular construction cables 10 are arranged between the upper radial cables 7 and the lower radial cables 8, and the stay cables between the outer tension ring and the inner tension ring form a grid, so that conditions are provided for laying and forming of the tension film 14. Each of the upper radial cables 7, the lower radial cables 8 and the construction cables 10 is in tension with a single cable. The inner ring cable 4 can be arranged in a single row or in a double-layer side-by-side manner according to the stress condition. The construction rope 10 is a pulling rope in the film surface and plays a role in resisting snow and wind. In the area with large curvature, the cable force of an upper radial cable 7 as a bearing cable and a lower radial cable 8 as a stabilizing cable is large, and the cable force of a tensioned inner ring cable 4 is small; in the area with small curvature, the bearing cable and the stabilizing cable have small cable force, and the tensioned inner ring cable 4 has large cable force. The maximum cable force of the construction cable 10 occurs at the root of the roof overhang (i.e., near the ring truss) and the minimum cable force occurs at the far end of the root of the roof overhang (i.e., near the inner ring cable). Because the upper radial cables 7 and the lower radial cables 8 bear tensile force, the three-dimensional ring truss 6 serving as an external compression ring bears huge pressure and has a tendency of inward deformation; the inner pulled inner ring cable 4 bears the tensile force and has the tendency of outward deformation.
Therefore, the structural system can be implemented by a construction method of integral tensioning and lifting, the construction speed is high, and the construction environment is environment-friendly. The construction method of integral tensioning in the construction of the roof structure comprises the steps of firstly erecting a steel structure three-dimensional ring truss 6 on a jig frame, and then spreading a tensioned inner ring cable 4, an upper radial cable 7 and a lower radial cable 8 in a field; then the upper radial cords 7 are tensioned, then the lower radial cords 8 are tensioned, and finally the tension film 14 is installed.
The spoke type wave cable membrane structure roof with the three-dimensional outer ring truss comprises an upper compression outer ring 1, a lower compression outer ring 2, a modeling outer convex ring 3 and a tension inner ring cable 4 which are all in an oval shape, and the centers of the upper compression outer ring, the lower compression outer ring, the modeling outer convex ring and the tension inner ring cable are respectively located at the same elevation.
The roof is supported on a steel concrete column 9. The reinforced concrete column 9 is hinged with the roof, and the reinforced concrete column 9 mainly bears vertical axial force and horizontal shearing force, has no additional bending moment and is reasonable in stress.
The upper radial cable 7 is hinged with the tension inner ring cable 4 and the upper compression outer ring 1; the lower radial cables 8 are hinged with the tensioned inner ring cable 4 and the lower compression outer ring 2.
The upper radial cables 7 and the lower radial cables 8 are distributed in the horizontal plane at intervals to form a corrugated roof, so that the corrugated roof is reasonable in stress, forms slopes in the annular direction and the radial direction, and is beneficial to organized drainage of the roof.
The outer ring truss 6 is connected with the tensioned inner ring cable 4 through the upper radial cables 7 and the lower radial cables 8, so that the stress in a plane is self-balanced, and the tensioned inner ring cable 4 does not need additional anchoring measures.
In the spoke type corrugated cable membrane structure roof with the three-dimensional outer ring truss of the embodiment, the peripheral boundaries of the tension membrane 14 are respectively connected with the ring truss vertical diagonal web members 5c, the upper radial cables 7 and the lower radial cables 8. The ring truss web members comprise ring truss upper web members 5a, ring truss lower web members 5b and ring truss vertical web members 5c, see fig. 6-9. The ring truss upper chord member 1 is connected with the modeling outer convex ring 3 through a truss upper inclined web member 5a, and the ring truss lower chord member 2 is connected with the modeling outer convex ring 3 through a ring truss lower inclined web member 5 b. The ring truss upper chord member 1 is positioned above the ring truss lower chord member 2, the ring truss upper chord member 1 is connected with the lower chord member 2 through the vertical inclined web members 5c, and the ring truss lower chord member 2 is hinged and fixed on the reinforced concrete column 9. The modeling outer convex ring 3 is positioned on the outer side of the ring truss upper chord 1 and the ring truss lower chord 2. The ends of the upper radial cable 7 and the lower radial cable 8 are connected with radial cable heads 11, and the radial cable heads 11 are connected with a looped cable clamp 12, as shown in fig. 4 and 5. The ring truss lower chord 2 is supported on the support 13 and the ring truss lower chord 2 is connected to the lower radial cables 8, see fig. 8 and 9. Each of the upper radial cables 7 and the lower radial cables 8 is connected to two construction cables 10, the two construction cables 10 being symmetrically distributed with respect to the upper radial cables 7 or the lower radial cables 8, see fig. 10 and 11.
Although the utility model has been described in detail above with reference to a general description and specific examples, it will be apparent to one skilled in the art that modifications or improvements may be made thereto based on the utility model. Accordingly, such modifications and improvements are intended to be within the scope of the utility model as claimed.
Claims (10)
1. A spoke type corrugated cable membrane structure roof with a three-dimensional outer ring truss comprises an upper pressed outer ring (1), a lower pressed outer ring (2), a modeling outer convex ring (3) and a tension inner ring cable (4), and is characterized in that the elevation of the upper pressed outer ring (1) is larger than that of the lower pressed outer ring (2), and any two of the upper pressed outer ring (1), the lower pressed outer ring (2) and the modeling outer convex ring (3) are respectively connected through an upper inclined web member (5a), a lower inclined web member (5b) and a vertical inclined web member (5c) which are uniformly distributed to form a three-dimensional ring truss (6); the tensioned inner ring cables (4) are connected with the upper pressed outer rings (1) through evenly distributed upper radial cables (7), and the tensioned inner ring cables (4) are connected with the lower pressed outer rings (2) through evenly distributed lower radial cables (8), so that the spoke type wave-shaped roof is formed.
2. The spoke type wave cable membrane structure roof with the three-dimensional outer ring truss of claim 1, wherein the upper pressed outer ring (1), the lower pressed outer ring (2) and the shaping outer convex ring (3) are all round or all oval.
3. The spoke type corrugated cable membrane structural roof with the three-dimensional outer ring truss according to claim 2, wherein the centers of the upper pressed outer ring (1), the lower pressed outer ring (2) and the modeling outer convex ring (3) are respectively located at the same elevation.
4. The spoke-type corrugated cable membrane structural roof with the three-dimensional outer ring truss as claimed in claim 3, characterized in that the tensioned inner ring cables (4) are circular or oval.
5. The spoke-type corrugated cable membrane structural roof with the three-dimensional outer ring truss according to claim 4, characterized in that the centers of the tensioned inner ring cables (4) are located at the same elevation.
6. A spoke-type corrugated cable membrane structural roof with a space outer ring truss according to claim 1, characterized in that the roof is supported on a steel concrete column (9).
7. The spoke-type corrugated cable membrane structural roof with a three-dimensional outer ring truss of claim 6, characterized in that the steel concrete column (9) is hinged with the roof.
8. The spoke-type corrugated cable membrane structural roof with the three-dimensional outer ring truss as claimed in claim 1, characterized in that the upper radial cables (7) are hinged with the tension inner ring cables (4) and the upper compression outer ring (1); the lower radial cable (8) is hinged with the tension inner ring cable (4) and the lower compression outer ring (2).
9. The spoke type corrugated cable membrane structure roof with the three-dimensional outer ring truss according to claim 1, wherein the projections of the upper radial cables (7) and the lower radial cables (8) in a horizontal plane are distributed at intervals to form the corrugated roof.
10. The spoke-type corrugated cable membrane structural roof with the three-dimensional outer ring truss of claim 1, characterized in that the upper radial cables (7) and the lower radial cables (8) are connected through annular structural cables (10).
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113789865A (en) * | 2021-07-07 | 2021-12-14 | 北京市建筑设计研究院有限公司 | Spoke type cable truss structure system of three-ring cable |
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- 2021-02-06 CN CN202120356051.3U patent/CN216641106U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113789865A (en) * | 2021-07-07 | 2021-12-14 | 北京市建筑设计研究院有限公司 | Spoke type cable truss structure system of three-ring cable |
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