CN101260705A - Sunflower-type cable dome system possessing mitigation function - Google Patents
Sunflower-type cable dome system possessing mitigation function Download PDFInfo
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- CN101260705A CN101260705A CNA2008100604612A CN200810060461A CN101260705A CN 101260705 A CN101260705 A CN 101260705A CN A2008100604612 A CNA2008100604612 A CN A2008100604612A CN 200810060461 A CN200810060461 A CN 200810060461A CN 101260705 A CN101260705 A CN 101260705A
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- 230000000116 mitigating effect Effects 0.000 title description 2
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 11
- 239000010959 steel Substances 0.000 claims abstract description 11
- 241000208818 Helianthus Species 0.000 claims abstract description 9
- 235000003222 Helianthus annuus Nutrition 0.000 claims abstract description 9
- 210000003458 notochord Anatomy 0.000 claims description 19
- 229910003460 diamond Inorganic materials 0.000 claims description 12
- 239000010432 diamond Substances 0.000 claims description 12
- 229910000639 Spring steel Inorganic materials 0.000 claims description 6
- 238000004873 anchoring Methods 0.000 claims description 5
- 230000007423 decrease Effects 0.000 claims description 3
- 230000000694 effects Effects 0.000 abstract description 6
- 238000010276 construction Methods 0.000 description 5
- 230000006978 adaptation Effects 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 230000005540 biological transmission Effects 0.000 description 2
- 239000004567 concrete Substances 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000001105 regulatory effect Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 238000010606 normalization Methods 0.000 description 1
- 238000009527 percussion Methods 0.000 description 1
- 239000011150 reinforced concrete Substances 0.000 description 1
- 239000004071 soot Substances 0.000 description 1
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Abstract
The invention discloses a sunflower shaped cable dome system with relieving function, consisting of a side ring beam, a central inner tab, vertical stay bars, dorsal cables, oblique cables, hoop cables and relieving devices, wherein, the dorsal cables are arranged in a sunflower shape, the dorsal cables of the innermost layer are hinged with the central inner tab, while the dorsal cables of the outermost layer are anchored with the side ring beam; upper ends of the vertical stay bars are hinged with one ends of the dorsal cables, lower ends of the vertical stay bars are hinged with one ends of the oblique cables, and the other ends of the oblique cables are hinged with the other ends of the dorsal cables; the oblique cables of the outermost side are anchored with the side ring beam; the hoop cables are connected with joints of the vertical stay bars and the oblique cables, and are in closed arrangement along the circumferential direction; and the load reliving devices are arranged on anchored positions between the oblique cables on the outermost side and the side ring beam. Each load relieving device consists of an elastic steel plastic, an anchorage and an embedded smooth steel plate. The sunflower shaped cable dome system has the advantages of nice structural style and excellent stress performance, can generate the effect of load self-adaptation under the adjustment of the relieving devices, have the internal force of a structural component reduced by about 20 percent compared with the structure without the relieving devices under the same loading effect.
Description
Technical field
The present invention relates to a kind of sunflower-type cable dome system of building field with alleviating function.Specifically be by the side ring beam, in intracardiac draw ring, vertical strut, the notochord that sunflower shape is arranged, oblique cord, a kind of tension structure that strop and reliever are formed.
Background technology
Cable dome structure is U.S. engineer Gerger development and promotes a kind of novel pre-stressed large-span structure of realizing after the Fuller tension integral structure thought, it has embodied Fuller about the thought of " isolated island of pressure is present in the ocean of pulling force ", is the high full tension force system of a kind of structure efficiency.In the face of present increasingly extensive tension structure system, in conjunction with the characteristics of himself, study a kind of can and the adjusting along with the external action variation to structure self, the structure that finally reaches self adaptation and self-regulating function is people's people's dreams for a better future always.The eighties in last century, the Britain scholar proposed the notion of load mitigation system (Load Relieving System), and it is applied to cause people's attention in the soot of a rope web frame.Invent a kind of simple structure, power transmission is clear and definite, and the load reliever that rigidity is suitable is extremely significant with the load alleviating function of realizing the sunflower-shaped cable dome.
Summary of the invention
The objective of the invention is to overcome the deficiencies in the prior art, a kind of sunflower-type cable dome system with alleviating function is provided.
It has the side ring beam, in intracardiac draw ring, vertically strut, notochord, oblique cord, strop and reliever; Be hinged to the diamond shaped unit by 4 notochords, by a plurality of diamond shaped unit to being connected into sunflower shape grid, innermost layer diamond shaped unit to angle point with in intracardiac draw ring hinged, outermost layer diamond shaped unit angle point and side ring beam are anchored, vertically the strut upper end is hinged with notochord one end, vertically an end of strut lower end and oblique cord is hinged, the other end of oblique cord and the notochord other end are hinged, outermost oblique cord and side ring beam are anchored, junction at vertical strut and oblique cord also is connected with strop, strop is along the hoop closed arrangement, and outermost oblique cord and anchor place of side ring beam are provided with the load reliever.
Intracardiac draw ring absolute altitude is the highest in described, and vertically strut top absolute altitude hoop is identical, radially successively decreases from inside to outside.Notochord, oblique cord and strop are prestressed cable.The side ring beam is a pressure-bearing side ring beam.The load reliever is made up of spring steel plate, anchoring piece and pre-buried smooth steel plate.
The present invention compares the beneficial effect that has with background technology:
1) form of structure is attractive in appearance, is sunflower shape;
2) from heavy and light, structural element is less;
3) this structure can adopt the concrete ring beam of superior high strength drag-line of examining tensile behavior and pressurized superior performance, gives full play to these two kinds of materials characteristic separately;
4) stress performance is superior, and structure provides rigidity by prestressing force, and drag-line is in tension state all the time, and compression member quantity is few, give full play to material intensity;
5) load reliever simple structure, power transmission is clear and definite, and the combination that can pass through the normalization spring steel plate of different-thickness different length obtains required any bigger elastic stiffness;
6) under reliever was regulated, structural system can produce a kind of load self adaptation effect, has not descended about 20% when the internal force of structural element has reliever under the identical load action;
7) for the big load of burst, reliever can absorb part energy, reduces the percussion of load, makes structure produce bigger distortion and realizes self-protection, can avoid structural collapse to a certain extent.
Description of drawings
Fig. 1 is the three-dimensional axonometric drawing of sunflower-type cable dome system with alleviating function;
Fig. 2 is the sunflower-type cable dome system upper strata sunflower shape notochord normal axomometric drawing with alleviating function;
Fig. 3 is the sunflower-type cable dome system lower floor oblique cord with alleviating function, vertical strut, strop normal axomometric drawing;
Fig. 4 is the sunflower-type cable dome system floor map with alleviating function;
Fig. 5 is the sunflower-type cable dome system generalized section with alleviating function;
Fig. 6 is a load reliever floor map;
Fig. 7 is a load reliever elevational schematic view;
Oblique cord in Fig. 8 example 1 (XS4) internal force change curve;
Strop in Fig. 9 example 1 (HS3) internal force change curve.
The specific embodiment
Sunflower-type cable dome system with alleviating function have side ring beam 1, in intracardiac draw ring 2, vertical strut 3, notochord 4, oblique cord 5, strop 6 and reliever 7; Be hinged to the diamond shaped unit by 4 notochords 4, by a plurality of diamond shaped unit to being connected into sunflower shape grid, innermost layer diamond shaped unit to angle point with in intracardiac draw ring 2 hinged, outermost layer diamond shaped unit angle point and side ring beam 1 are anchored, vertically strut 3 upper ends and notochord 4 one ends are hinged, vertically an end of strut 3 lower ends and oblique cord 5 is hinged, the other end of oblique cord 5 and notochord 4 other ends are hinged, outermost oblique cord 5 is anchored with side ring beam 1, junction at vertical strut 3 and oblique cord 5 also is connected with strop 6, strop 6 is along the hoop closed arrangement, and outermost oblique cord 5 is provided with load reliever 7 with 1 anchor place of side ring beam.
Sunflower-type cable dome system with alleviating function is formed by the combination of materials of different performance.The side ring beam is the pressurized ring beam, can utilize substructure capital collar tie beam, is generally reinforced concrete beam, and rigidity is big, and the pressurized performance is good, and construction is also convenient, and the steel plate that the anchoring of oblique cord and notochord is used can be embedded on this beam, and tension operation space spaciousness is easy to operate.Notochord, oblique cord, strop can adopt high tensile steel wire, steel strand, wire rope etc.During the drag-line construction, at first to determine the length under its zero stress state, be that so-called tension structure is looked for shape, process rope head, ground tackle and vertical strut then, in practice of construction, the initial prestress value and the design load of drag-line still bigger gap might occur, so vertical strut can be designed as the member of adjustable in length, connection between the drag-line can be adopted screw rod rope head, the convenient installation and construction molding.After the structural element assembling finished, structure still was in unstress state, and when the fraction cable stretching of remainder put in place, structure formation also had rigidity, can bear the external loads effect.Reliever is made up of spring steel plate, anchoring piece and pre-buried smooth steel plate, and the crooked vibration damper steel plate that spring steel plate can adopt automobile generally to adopt according to needed rigidity, is combined by the curved plates of different-thickness and length.
Provide a concrete example below.
1: one span of example is 50m, bears the sunflower-shaped cable dome of axial symmetry load action, and the plan view of structure and sectional drawing are shown in Fig. 4,5, and the vertical vertically strut height in sectional drawing is respectively 1.3m, 2.4m, 3.6m, 5.0m.The sectional area A of this each drag-line of dome and initial prestressing force F
0See Table 1, the modulus of elasticity of drag-line is 1.8 * 10
11MPa, the modulus of elasticity of depression bar are 2.06 * 10
11MPa, the elastic stiffness of the spring unit of the reliever of employing is 9.0 * 10
3KN/m can be combined by the steel spring plate of different size.At first this structure is applied initial prestressing force (be construction stretching when finishing, the situation of deadweight is only arranged) and, apply the Pyatyi load then successively: vertical evenly distributed load q=0.2kN/m as the zero level load
2,, 0.4kN/m
2, 0.6kN/m
2, 0.8kN/m
2, 1.0kN/m
2, the internal force of member changes when calculating no reliever and applying reliever.Accompanying drawing 5,6,7,8 is respectively oblique cord (XS4), strop (HS3) internal force change curve.Result of calculation shows that this system can produce a kind of load self adaptation effect under reliever is regulated, do not descended about 20% when the internal force of structural element has reliever under the identical load action.
From example as seen, effect of the present invention is significant, and scheme is feasible.
Table 1:
| Drag-line | JS1 | JS2 | JS3 | JS4 | XS1 | XS2 | XS3 | XS4 | HS1 | HS2 | HS3 |
| A/cm 2 | 8.85 | 4.43 | 4.43 | 4.43 | 4.91 | 2.46 | 2.46 | 4.43 | 4.91 | 8.85 | 11.8 |
| F0/kN | 85.6 | 62.6 | 113.6 | 217.4 | 28.5 | 34.6 | 63 | 125 | 157.7 | 254.5 | 438.4 |
Claims (6)
1. sunflower-type cable dome system with alleviating function, it is characterized in that: it has side ring beam (1), in intracardiac draw ring (2), vertically strut (3), notochord (4), oblique cord (5), strop (6) and reliever (7); Be hinged to the diamond shaped unit by 4 notochords (4), by a plurality of diamond shaped unit to being connected into sunflower shape grid, innermost layer diamond shaped unit to angle point with in intracardiac draw ring (2) hinged, outermost layer diamond shaped unit is anchored angle point and side ring beam (1), vertically strut (3) upper end is hinged with notochord (4) one ends, vertically an end of strut (3) lower end and oblique cord (5) is hinged, the other end of oblique cord (5) and notochord (4) other end are hinged, outermost oblique cord (5) is anchored with side ring beam (1), junction at vertical strut (3) and oblique cord (5) also is connected with strop (6), strop (6) is along the hoop closed arrangement, and outermost oblique cord (5) is provided with load reliever (7) with side ring beam (1) anchor place.
2. a kind of sunflower-type cable dome system with alleviating function according to claim 1 is characterized in that: intracardiac draw ring (2) absolute altitude is the highest in described, and vertically strut (3) top absolute altitude hoop is identical, radially successively decreases from inside to outside.
3. a kind of sunflower-type cable dome system with alleviating function according to claim 1 is characterized in that described notochord (4), oblique cord (5) and strop (6) are prestressed cable.
4. a kind of sunflower-type cable dome system with alleviating function according to claim 1 is characterized in that, described side ring beam (1) is a pressure-bearing side ring beam.
5. a kind of sunflower-type cable dome system with alleviating function according to claim 1 is characterized in that described load reliever (7) is an elastic body.
6. a kind of sunflower-type cable dome system with alleviating function according to claim 5 is characterized in that, described load reliever (7) is made up of spring steel plate (8), anchoring piece (9) and pre-buried smooth steel plate (10).
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| Application Number | Priority Date | Filing Date | Title |
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| CNA2008100604612A CN101260705A (en) | 2008-04-11 | 2008-04-11 | Sunflower-type cable dome system possessing mitigation function |
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| CNA2008100604612A CN101260705A (en) | 2008-04-11 | 2008-04-11 | Sunflower-type cable dome system possessing mitigation function |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2011026408A1 (en) * | 2009-09-03 | 2011-03-10 | 浙江大学 | Layer-by-layer sunflower-shaped cable dome structure with double annular cables and construction method thereof |
| CN102587556A (en) * | 2011-01-14 | 2012-07-18 | 马国志 | Super-span horizontal-cable-stayed roof frame |
| CN102605861A (en) * | 2012-03-08 | 2012-07-25 | 东南大学 | Deployable cable pole dome structure |
| CN103953116A (en) * | 2014-05-22 | 2014-07-30 | 中国建筑西南设计研究院有限公司 | Shape finding method of large-opening cable-supported lattice structure |
| CN105464213A (en) * | 2015-10-30 | 2016-04-06 | 北京城建集团有限责任公司 | Large-span prestressed dome structure and manufacturing method thereof |
| CN107268792A (en) * | 2017-07-10 | 2017-10-20 | 中国建筑西南设计研究院有限公司 | A kind of rigid roofing cable dome structure supported with ring |
| CN109826356A (en) * | 2019-01-17 | 2019-05-31 | 上海海事大学 | A kind of hyperboloid of revolution sunflower-patterned dome |
| CN113047440A (en) * | 2021-05-06 | 2021-06-29 | 上海大学 | Double-layer radiation beam string structure with wind-resistant cable and construction method thereof |
-
2008
- 2008-04-11 CN CNA2008100604612A patent/CN101260705A/en active Pending
Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2011026408A1 (en) * | 2009-09-03 | 2011-03-10 | 浙江大学 | Layer-by-layer sunflower-shaped cable dome structure with double annular cables and construction method thereof |
| CN101649661B (en) * | 2009-09-03 | 2011-05-11 | 浙江大学 | Layer-by-layer double-ring sunflower-shaped cable dome structure and construction molding method thereof |
| US8671646B2 (en) | 2009-09-03 | 2014-03-18 | Zhejiang University | Layer-by-layer double-hoop sunflower-shaped cable dome structure and its construction method |
| CN102587556A (en) * | 2011-01-14 | 2012-07-18 | 马国志 | Super-span horizontal-cable-stayed roof frame |
| CN102605861A (en) * | 2012-03-08 | 2012-07-25 | 东南大学 | Deployable cable pole dome structure |
| CN103953116B (en) * | 2014-05-22 | 2015-12-30 | 中国建筑西南设计研究院有限公司 | Big uncork Suo Cheng network look for shape method |
| CN103953116A (en) * | 2014-05-22 | 2014-07-30 | 中国建筑西南设计研究院有限公司 | Shape finding method of large-opening cable-supported lattice structure |
| CN105464213A (en) * | 2015-10-30 | 2016-04-06 | 北京城建集团有限责任公司 | Large-span prestressed dome structure and manufacturing method thereof |
| CN107268792A (en) * | 2017-07-10 | 2017-10-20 | 中国建筑西南设计研究院有限公司 | A kind of rigid roofing cable dome structure supported with ring |
| CN109826356A (en) * | 2019-01-17 | 2019-05-31 | 上海海事大学 | A kind of hyperboloid of revolution sunflower-patterned dome |
| CN109826356B (en) * | 2019-01-17 | 2023-10-31 | 上海海事大学 | Rotary hyperboloid sunflower-type cable dome |
| CN113047440A (en) * | 2021-05-06 | 2021-06-29 | 上海大学 | Double-layer radiation beam string structure with wind-resistant cable and construction method thereof |
| CN113047440B (en) * | 2021-05-06 | 2023-08-11 | 盐城市建筑设计研究院有限公司 | Double-layer radial beam string structure with wind resistance cable and construction method thereof |
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Open date: 20080910 |