CN220285133U - Combined dome structure - Google Patents
Combined dome structure Download PDFInfo
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- CN220285133U CN220285133U CN202322338839.3U CN202322338839U CN220285133U CN 220285133 U CN220285133 U CN 220285133U CN 202322338839 U CN202322338839 U CN 202322338839U CN 220285133 U CN220285133 U CN 220285133U
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- 239000002356 single layer Substances 0.000 claims abstract description 48
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 7
- 239000010959 steel Substances 0.000 claims abstract description 7
- 230000000087 stabilizing effect Effects 0.000 claims description 27
- 239000002131 composite material Substances 0.000 claims description 10
- 239000000463 material Substances 0.000 claims description 4
- 230000001154 acute effect Effects 0.000 claims description 3
- 239000010410 layer Substances 0.000 abstract description 13
- 230000006835 compression Effects 0.000 description 4
- 238000007906 compression Methods 0.000 description 4
- 230000008901 benefit Effects 0.000 description 2
- 238000004873 anchoring Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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Abstract
The utility model relates to a combined dome structure, which comprises an inner pull ring, a truss member, a single-layer annular net shell, a vertical support, radial inclined ropes and annular ropes, wherein the truss member, the vertical support, the radial inclined ropes and the annular ropes are all multiple in number, one end of each truss member is connected with the inner pull ring, and the other end of each truss member is connected with the inner edge of the single-layer annular net shell; the top ends of the plurality of vertical supporting pieces are connected with the bottom of the inner edge of the single-layer annular net shell, one ends of the plurality of radial inclined ropes are connected with the outer edge of the single-layer annular net shell, and the other ends of the plurality of radial inclined ropes are respectively connected with the bottom ends of the plurality of vertical supporting pieces; and two ends of each circumferential cable are respectively connected with the bottom ends of two adjacent vertical supports. The utility model enhances the overall out-of-plane rigidity, reduces the height of an inner pull ring and reduces the steel consumption, and belongs to the technical field of spoke type double-layer cable system structures and chord branch dome structures.
Description
Technical Field
The utility model relates to the technical field of spoke type double-layer cable system structures and chord branch dome structures, in particular to a combined dome structure.
Background
The spoke type double-layer cable system structure is derived from a 'tensioning integral idea' proposed by a well-known architect Fuller in the middle of the 20 th century, and the nature is found not to utilize the existing compression resistance in the study, so that tension members are added as much as possible in the structure, compression members are reduced, the structure is in a continuous tensioning state, and the pressure is made into an island of tension sea. The traditional spoke type double-layer cable system structure is a typical tension structure system, and has the characteristics of extremely high structural efficiency, few rod nodes, large space span, small steel consumption and the like, but has part of defects. The basic component unit of the traditional spoke type double-layer cable system structure is a cable truss, and the stable cable of each truss component lacks an effective annular connecting component, so that the out-of-plane rigidity of the structure is smaller, and in order to meet the stress and economy of the structure, the height of an inner pull ring is larger, thereby reducing the indoor clearance. The tension integral structure needs to apply larger prestress to the bearing rope and the stabilizing rope to obtain enough rigidity to resist the load, and because larger pressure can be generated to the outer compression ring, larger radial inward tension can be generated to the support, and the section of the outer compression ring and the design difficulty of the support are increased.
The upper part of the traditional suspended dome structure is a single-layer net shell formed by connecting rigid rods, so that the suspended dome structure has stronger geometric stability, and can generate larger radial external thrust on the support under the action of dead weight and external load. The cable rod system is arranged at the lower part of the structure, and radial internal tension can be generated on the support after the prestress is applied, but the prestress and the cross-sectional area of the inhaul cable are not too large under the condition of meeting the structural economy, so that the support still receives larger external thrust.
Disclosure of Invention
Aiming at the technical problems existing in the prior art, the utility model aims at: the combined dome structure solves the problems that the stability cable of each truss member of the existing spoke type double-layer cable system structure lacks effective annular connecting members, so that the out-of-plane rigidity of the structure is smaller, and in order to meet the stress and economy of the structure, the height of an inner pull ring is larger, so that the indoor clearance is reduced.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
a combined dome structure comprises an inner pull ring, a plurality of truss members, a single-layer annular net shell, a vertical support, radial inclined ropes and annular ropes, wherein one ends of the truss members are connected with the inner pull ring, and the other ends of the truss members are connected with the inner edge of the single-layer annular net shell; the top ends of the plurality of vertical supporting pieces are connected with the bottom of the inner edge of the single-layer annular net shell, one ends of the plurality of radial inclined ropes are connected with the outer edge of the single-layer annular net shell, and the other ends of the plurality of radial inclined ropes are respectively connected with the bottom ends of the plurality of vertical supporting pieces; two ends of each circumferential cable are respectively connected with the bottom ends of two adjacent vertical supporting pieces; the plurality of truss members and the plurality of vertical supports are uniformly distributed along the circumferential direction of the inner pull ring.
As one preferable mode, the truss component comprises a radial stabilizing rope, a radial bearing rope, a first vertical supporting rod, a second vertical supporting rod and a third vertical supporting rod, one end of the radial stabilizing rope is connected with the top of the inner pull ring, and the other end of the radial stabilizing rope is connected with the inner edge of the single-layer annular reticulated shell; one end of the radial bearing cable is connected with the bottom of the inner pull ring, and the other end of the radial bearing cable is hinged with the inner edge of the single-layer annular reticulated shell; one end of the first vertical stay bar is hinged with the connecting part of the radial stable rope and the inner pull ring, and the other end of the first vertical stay bar is connected with the connecting part of the radial bearing rope and the inner pull ring; two ends of the second vertical stay bar are respectively connected with the radial stabilizing rope and the radial bearing rope, two ends of the third vertical stay bar are respectively connected with the radial stabilizing rope and the radial bearing rope, and the second vertical stay bar and the third vertical stay bar are distributed between the inner pull ring and the single-layer annular reticulated shell at equal intervals.
Preferably, the inner pull ring comprises an upper ring and a lower ring, the upper ring is erected right above the lower ring through a first vertical supporting rod, and the diameters of the upper ring and the lower ring are consistent; the radial stabilizing rope is connected with the upper circular ring, and the radial bearing rope is connected with the lower circular ring.
As one preferable mode, the single-layer annular net shell comprises an inner ring, a middle ring, an outer ring and a plurality of connecting pieces, wherein the inner ring, the middle ring and the outer ring are distributed at equal intervals, two ends of one connecting piece are respectively connected with the inner ring and the middle ring, and two ends of the other connecting pieces are respectively connected with the middle ring and the outer ring; the radial stabilizing rope, the radial bearing rope and the vertical supporting piece are all connected with the inner circular ring, and the radial inclined rope is connected with the outer circular ring.
Preferably, the connecting piece comprises two connecting rods, one ends of the two connecting rods are connected, and an included angle between the two connecting rods is an acute angle; the connecting rods of two adjacent connecting pieces are connected.
Preferably, the radial stabilizing cable, the radial bearing cable and the first vertical stay rod are sequentially connected to form a right triangle.
Preferably, the single-layer annular net shell, the vertical support piece and the radial inclined ropes are sequentially connected to form a triangular structure.
Preferably, the upper ring and the lower ring are made of steel materials.
In general, the utility model has the following advantages:
on the basis of the traditional spoke type double-layer cable system structure (an inner pull ring and a truss member), the outer ring is added with a combined dome structure formed by a suspended dome structure (a single-layer annular net shell), and is matched with a vertical support piece, a radial inclined cable and a circumferential cable, so that the two structures are stressed together under the action of dead weight and external load, the geometric stability and the out-of-plane rigidity of the structure are enhanced, and the height of the inner pull ring of the spoke type double-layer cable system structure is reduced.
Drawings
Fig. 1 is a perspective view of a composite dome structure of the present utility model.
Fig. 2 is a top view of the composite dome structure of the present utility model.
Fig. 3 is a cross-sectional view of the assembled dome structure of the present utility model.
Wherein 1 is an inner pull ring, 2 is a radial stable rope, 3 is a radial bearing rope, 4 is a first vertical supporting rod, 5 is a second vertical supporting rod, 6 is a third vertical supporting rod, 7 is a single-layer annular net shell, 8 is a vertical supporting piece, 9 is a radial inclined rope, and 10 is a circumferential rope.
Detailed Description
The present utility model will be described in further detail with reference to the following embodiments.
As shown in fig. 1-3, the combined dome structure provided in this embodiment includes an inner pull ring 1, a pin member, a single-layer annular net shell 7, a vertical support 8, a radial inclined cable 9 and a circumferential cable 10, where the number of pin members, vertical supports, radial inclined cables and circumferential cables is multiple, one end of each pin member is connected with the inner pull ring, and the other end of each pin member is connected with the inner edge of the single-layer annular net shell; the top ends of the plurality of vertical supporting pieces are connected with the bottom of the inner edge of the single-layer annular net shell, one ends of the plurality of radial inclined ropes are connected with the outer edge of the single-layer annular net shell, and the other ends of the plurality of radial inclined ropes are respectively connected with the bottom ends of the plurality of vertical supporting pieces; two ends of each circumferential cable are respectively connected with the bottom ends of two adjacent vertical supporting pieces; the plurality of truss members and the plurality of vertical supports are uniformly distributed along the circumferential direction of the inner pull ring. In this embodiment, the inner tab 1 and the truss member may be the inner tab 1 and the truss member that form the existing spoke type double-layer cable system structure. As shown in fig. 1, the number of the truss members in this embodiment is 12, and the 12 truss members are uniformly distributed along the circumferential direction of the inner tab, that is, the included angle between two adjacent truss members is 30 degrees. The single-layer annular net shell can be of an existing suspended dome structure and is anchored with an external support. The number of the vertical supporting pieces, the radial inclined ropes and the circumferential ropes is 12, the vertical supporting pieces are rod pieces, and parts connected with the vertical supporting pieces are connected in a hinged mode. The radial inclined rope 9 and the circumferential rope 10 are connected in a hinged manner. The radial inclined ropes 9 are hinged with the single-layer annular net shell. The connection mode of the truss members and the inner pull rings is the connection mode, the connection mode of the truss members and the single-layer annular net shell is hinged, and the connection mode of the radial inclined ropes and the single-layer annular net shell is hinged.
Structural principle: because the basic stress unit of the traditional spoke type double-layer cable system structure is a cable truss, the span is larger and the annular constraint is absent, so that the out-of-plane rigidity of the structure is weaker, and the structure is particularly more sensitive to unevenly distributed loads. Because of the traditional suspended dome structure, the single-layer reticulated shell at the upper part can generate horizontal thrust to the support under the action of external load, the lower cable-rod system needs to improve the prestress level and generate larger horizontal tension to offset the cross-sectional area of the cable, and the economical efficiency of the structure is reduced. Based on the above factors, the spoke type double-layer cable system and the chord branch dome are combined to form a combined dome, a plurality of truss members are connected with the inner pull ring and are prestressed, then single sides of the single-layer annular net shell are supported through the vertical supporting piece, radial external thrust can be generated on the support due to self weight and external load of the single-layer annular net shell, at the moment, radial internal tension can be generated on the single-layer annular net shell due to the prestress action of the truss members and the inner pull ring, and therefore the radial external thrust can be offset by the connecting structure formed by the vertical supporting piece 8, the radial inclined cable 9 and the annular cable 10 only through lower prestress level, the steel consumption of the structure is reduced, and the device has better economic benefit and application prospect.
In some embodiments, the truss members comprise radial stabilizing cables 2, radial bearing cables 3, a first vertical supporting rod 4, a second vertical supporting rod 5 and a third vertical supporting rod 6, one end of each radial stabilizing cable is connected with the top of the inner pull ring, and the other end of each radial stabilizing cable is connected with the inner edge of the single-layer annular net shell; one end of the radial bearing cable is connected with the bottom of the inner pull ring, and the other end of the radial bearing cable is hinged with the inner edge of the single-layer annular reticulated shell; one end of the first vertical stay bar is hinged with the connecting part of the radial stable rope and the inner pull ring, and the other end of the first vertical stay bar is connected with the connecting part of the radial bearing rope and the inner pull ring; two ends of the second vertical stay bar are respectively connected with the radial stabilizing rope and the radial bearing rope, two ends of the third vertical stay bar are respectively connected with the radial stabilizing rope and the radial bearing rope, and the second vertical stay bar and the third vertical stay bar are distributed between the inner pull ring and the single-layer annular reticulated shell at equal intervals. In this embodiment, the radial stabilizing cable, the radial load bearing cable and the inner pull ring are connected in a hinged manner.
In some embodiments, the inner pull ring comprises an upper ring and a lower ring, the upper ring is erected right above the lower ring through a first vertical supporting rod, and the diameters of the upper ring and the lower ring are consistent; the radial stabilizing rope is connected with the upper circular ring, and the radial bearing rope is connected with the lower circular ring.
In some embodiments, the single-layer annular net shell comprises an inner ring, a middle ring, an outer ring and a plurality of connecting pieces, wherein the inner ring, the middle ring and the outer ring are distributed at equal intervals, two ends of one connecting piece are respectively connected with the inner ring and the middle ring, and two ends of the other connecting pieces are respectively connected with the middle ring and the outer ring; the radial stabilizing rope, the radial bearing rope and the vertical supporting piece are all connected with the inner circular ring, and the radial inclined rope is connected with the outer circular ring.
In some embodiments, the connecting piece comprises two connecting rods, one ends of the two connecting rods are connected and then fixedly connected with the corresponding inner ring, middle ring and outer ring, so that the two connecting rods and the corresponding inner ring, middle ring and outer ring are triangular; the included angle between the two connecting rods is an acute angle; the connecting rods of two adjacent connecting pieces are connected. By setting the triangular structure, the stability is high.
In some embodiments, the radial stabilizing cable, the radial load bearing cable, and the first vertical strut are connected in sequence to form a right triangle. By setting the triangular structure, the stability is high.
In some embodiments, the single-layer annular latticed shell, the vertical supports, and the radial diagonal cables are connected in sequence to form a triangular structure. By setting the triangular structure, the stability is high.
In some embodiments, the upper ring and the lower ring are made of a steel material. The upper ring and the lower ring prepared by adopting the steel materials have high rigidity and good stability.
The construction method of the combined dome structure comprises the following steps:
step S1: firstly, determining the span of a combined dome, including the span of a spoke type double-layer cable system (an inner pull ring and a truss member) and the span of a suspended dome (a single-layer annular net shell), the size of the inner pull ring, the equal fraction of a single-layer annular net shell divided by a radial stable cable and a radial bearing cable, and the number of first vertical supporting rods, second vertical supporting rods, third vertical supporting rods and radial inclined cables, so as to determine the plane projection positions of the radial stable cable, the radial bearing cable, the inner pull ring, the radial inclined cable, the annular cable, the vertical supporting rods and the single-layer net shell;
step S2: setting up an assembly jig on the ground, placing the assembled inner pull ring and single-layer annular net shell on the jig, and installing a radial stabilizing rope and a radial bearing rope to connect the inner pull ring and the single-layer annular net shell;
step S3: the whole traction and lifting of the tool rope are utilized, and a first vertical stay bar, a second vertical stay bar, a third vertical stay bar, a vertical support piece, a radial inclined rope and a circumferential rope are synchronously installed;
step S4: when the single-layer annular net shell is lifted to the designed elevation, anchoring the single-layer annular net shell with an external support;
step S5: and (3) integrally tensioning the lower cable rod system (the vertical support piece, the radial inclined cable and the annular cable) to fix the position, thereby completing tensioning of the spoke type double-layer cable system and the combined dome cable rod system of the chord branch dome.
The above examples are preferred embodiments of the present utility model, but the embodiments of the present utility model are not limited to the above examples, and any other changes, modifications, substitutions, combinations, and simplifications that do not depart from the spirit and principle of the present utility model should be made in the equivalent manner, and the embodiments are included in the protection scope of the present utility model.
Claims (8)
1. A composite dome structure, characterized in that: the device comprises an inner pull ring, a plurality of pin members, a single-layer annular net shell, a vertical supporting piece, radial inclined ropes and annular ropes, wherein the number of the pin members, the vertical supporting piece, the radial inclined ropes and the annular ropes is multiple; the top ends of the plurality of vertical supporting pieces are connected with the bottom of the inner edge of the single-layer annular net shell, one ends of the plurality of radial inclined ropes are connected with the outer edge of the single-layer annular net shell, and the other ends of the plurality of radial inclined ropes are respectively connected with the bottom ends of the plurality of vertical supporting pieces; two ends of each circumferential cable are respectively connected with the bottom ends of two adjacent vertical supporting pieces; the plurality of truss members and the plurality of vertical supports are uniformly distributed along the circumferential direction of the inner pull ring.
2. A composite dome structure in accordance with claim 1 wherein: the truss component comprises a radial stabilizing rope, a radial bearing rope, a first vertical supporting rod, a second vertical supporting rod and a third vertical supporting rod, one end of the radial stabilizing rope is connected with the top of the inner pull ring, and the other end of the radial stabilizing rope is connected with the inner edge of the single-layer annular reticulated shell; one end of the radial bearing cable is connected with the bottom of the inner pull ring, and the other end of the radial bearing cable is hinged with the inner edge of the single-layer annular reticulated shell; one end of the first vertical stay bar is hinged with the connecting part of the radial stable rope and the inner pull ring, and the other end of the first vertical stay bar is connected with the connecting part of the radial bearing rope and the inner pull ring; two ends of the second vertical stay bar are respectively connected with the radial stabilizing rope and the radial bearing rope, two ends of the third vertical stay bar are respectively connected with the radial stabilizing rope and the radial bearing rope, and the second vertical stay bar and the third vertical stay bar are distributed between the inner pull ring and the single-layer annular reticulated shell at equal intervals.
3. A composite dome structure in accordance with claim 2, wherein: the inner pull ring comprises an upper ring and a lower ring, the upper ring is erected right above the lower ring through a first vertical supporting rod, and the diameters of the upper ring and the lower ring are consistent; the radial stabilizing rope is connected with the upper circular ring, and the radial bearing rope is connected with the lower circular ring.
4. A composite dome structure in accordance with claim 2, wherein: the single-layer annular net shell comprises an inner ring, a middle ring, an outer ring and a plurality of connecting pieces, wherein the inner ring, the middle ring and the outer ring are distributed at equal intervals, two ends of one connecting piece are respectively connected with the inner ring and the middle ring, and two ends of the other connecting pieces are respectively connected with the middle ring and the outer ring; the radial stabilizing rope, the radial bearing rope and the vertical supporting piece are all connected with the inner circular ring, and the radial inclined rope is connected with the outer circular ring.
5. A composite dome structure in accordance with claim 4 wherein: the connecting piece comprises two connecting rods, one ends of the two connecting rods are connected, and an included angle between the two connecting rods is an acute angle; the connecting rods of two adjacent connecting pieces are connected.
6. A composite dome structure in accordance with claim 2, wherein: the radial stabilizing rope, the radial bearing rope and the first vertical stay bar are sequentially connected to form a right triangle.
7. A composite dome structure in accordance with claim 1 wherein: the single-layer annular net shell, the vertical support piece and the radial inclined ropes are sequentially connected to form a triangular structure.
8. A composite dome structure in accordance with claim 3 wherein: the upper ring and the lower ring are made of steel materials.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322338839.3U CN220285133U (en) | 2023-08-28 | 2023-08-28 | Combined dome structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322338839.3U CN220285133U (en) | 2023-08-28 | 2023-08-28 | Combined dome structure |
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| Publication Number | Publication Date |
|---|---|
| CN220285133U true CN220285133U (en) | 2024-01-02 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322338839.3U Active CN220285133U (en) | 2023-08-28 | 2023-08-28 | Combined dome structure |
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| CN (1) | CN220285133U (en) |
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2023
- 2023-08-28 CN CN202322338839.3U patent/CN220285133U/en active Active
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