CN201193372Y - Sunflower type cable domes - Google Patents
Sunflower type cable domes Download PDFInfo
- Publication number
- CN201193372Y CN201193372Y CNU2008200831645U CN200820083164U CN201193372Y CN 201193372 Y CN201193372 Y CN 201193372Y CN U2008200831645 U CNU2008200831645 U CN U2008200831645U CN 200820083164 U CN200820083164 U CN 200820083164U CN 201193372 Y CN201193372 Y CN 201193372Y
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- CN
- China
- Prior art keywords
- ring beam
- hinged
- sunflower
- notochord
- inner ring
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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Abstract
The utility mode discloses a sunflower-shaped cable dome structure which comprises a central inner ring beam, a stiff member bar, a ring cable, ridge cables, a vertical supporting rod, inclined cables and a side ring beam. The central inner ring beam, the stiff member bar, the ridge cables and the side ring beam form a sunflower-shaped grid, one end of the stiff member bar is hinged with the central inner ring beam, the other end of the stiff member bar is hinged with one end of the innermost ridge cable, and one end of the outermost ridge cable is anchored with the side ring beam. The upper end of the vertical supporting rod is hinged with the ridge cables, the lower end of the vertical supporting rod is hinged with one end of each inclined cable and the ring cable, the other end of each inclined cable is hinged with the ridge cables, the outermost inclined cable is anchored with the side ring beam, and the ring cable is closed along the circumferential direction for arrangement. The structure has beautiful shape and excellent mechanical performances. The ridge cables easily out of work in the original structure is replaced by the stiff member bar, an upper part pull ring is replaced by the inner ring beam, so that the bearing capacity of the structure is greatly increased, and the deformation tends to be lightened.
Description
Technical field
The utility model relates to building field, relates in particular to a kind of sunflower-shaped cable dome structure.
Background technology
Cable dome structure is a kind of novel space structures form, and 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.The sunflower-shaped cable dome is high from heavy and light, stability, but when load increases to a certain degree, the core notochord is deactivated easily, the increase speed of displacement structure is obviously accelerated, if the notochord of core is not deactivated, must greatly improve the prestressing force of strop, thereby cause other partial component internal force of structure obviously to increase, and when outer strop prestressing force was increased to certain value, its effect weakened gradually.Therefore, how to make the sunflower-shaped cable dome can bear bigger load and guarantee that also it is the key issue of being badly in need of solution that distortion increases stably with load.
Summary of the invention
The purpose of this utility model provides a kind of notochord and changes local stiffness rod member into, and central upper is the sunflower-shaped cable dome structure of inner ring beam.
It has center inner ring beam, stiffness rod member, strop, notochord, vertical strut, oblique cord and side ring beam, center inner ring beam, stiffness rod member, notochord and side ring beam are formed sunflower shape grid, one end and the center inner ring beam of stiffness rod member are hinged, the other end of stiffness rod member is hinged with an end of inner ring notochord, one end of outmost turns notochord and side ring beam are anchored, vertically the strut upper end is hinged with notochord, vertically an end and the strop of strut lower end and oblique cord are hinged, the other end of oblique cord is with hinged with notochord, outmost turns oblique cord and side ring beam are anchored, and strop is along the hoop closed arrangement.
Described stiffness rod member is the stiffness rod member that bears pressure.The central upper inner ring beam is the rigidity ring beam that bears moment of flexure, shearing and axle power.Center inner ring beam absolute altitude is the highest, and vertically strut top absolute altitude hoop is identical, radially successively decreases from inside to outside.Strop, notochord, oblique cord are prestressed cable.
The utility model is compared the beneficial effect that has with background technology:
1) form of structure is attractive in appearance, is the sunflower shape;
2) from heavy and light, structural element is less;
3) give full play to the performance of high-strength material, 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) notochord of the core that will deactivate easily owing to bearing pressure changes the stiffness rod member into, and intracardiac strop changes the rigidity ring beam in inciting somebody to action, and structure bearing capacity is greatly improved;
5) phenomenon of having avoided change in displacement to increase suddenly makes the increase smooth variation of the displacement of structure with load, and the displacement of structure is reduced to some extent.
Description of drawings
Fig. 1 is the three-dimensional axonometric drawing of sunflower-shaped cable dome structure;
Fig. 2 is the sunflower-shaped cable dome structure generalized section;
Fig. 3 is the sunflower-shaped cable dome structure floor map;
Fig. 4 is sunflower-shaped cable dome structure upper strata sunflower shape notochord, stiffness rod member and inner ring beam schematic diagram;
Fig. 5 is sunflower-shaped cable dome structure oblique cord, vertical strut, strop schematic diagram;
Fig. 6 is an example schematic diagram of the present utility model;
Fig. 7 is load-displacement diagram of the present utility model.
The specific embodiment
A kind of sunflower-shaped cable dome structure has center inner ring beam 1, stiffness rod member 2, strop 3, notochord 4, vertical strut 5, oblique cord 6 and side ring beam 7, center inner ring beam 1, stiffness rod member 2, notochord 4 and side ring beam 7 are formed sunflower shape grid, one end and the center inner ring beam 1 of stiffness rod member 2 are hinged, the other end of stiffness rod member 2 is hinged with an end of inner ring notochord 4, one end of outmost turns notochord 4 and side ring beam 7 are anchored, vertically strut 5 upper ends and notochord 4 are hinged, vertically an end and the strop 3 of strut 5 lower ends and oblique cord 6 are hinged, the other end of oblique cord 6 is with hinged with notochord 4, outmost turns oblique cord 6 is anchored with side ring beam 7, and strop 3 is along the hoop closed arrangement.
Described stiffness rod member 2 is for bearing the stiffness rod member of pressure.Central upper inner ring beam 1 is for bearing the rigidity ring beam of moment of flexure, shearing and axle power.Inner ring beam 1 absolute altitude in center is the highest, and vertically strut 5 top absolute altitude hoops are identical, radially successively decrease from inside to outside.Strop 3, notochord 4, oblique cord 6 is a prestressed cable.
A kind of sunflower-shaped cable dome structure is that notochord is local stiffness rod member, and central upper is the sunflower-type cable dome system of inner ring beam, and it is formed by the combination of materials of varying strength.The side ring beam is a pressurized side 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, and wire rope etc., inner ring beam, stiffness rod member, vertical strut can adopt shaped steel.During the drag-line construction, at first to determine the length under its zero stress state, processing rope head, ground tackle, in practice of construction, the initial prestress value and the design load of drag-line still bigger gap might occur, so vertically strut can be designed as the member of adjustable in length, being connected can adopt between strop and the notochord can regulate rope, connect and easy to adjust.Rope is connected with rope, and the existing many forms of the node that Suo Yuliang connects can be selected.After the member assembling of structure 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.
Provide a concrete example below.
A sunflower-shaped cable dome structure, span is 50m, bears the axial symmetry load, as shown in Figure 6, vertical vertically strut height is: H
1=1.3m, H
2=2.4m, H
3=3.6m, H
4=5m, sectional area is 13.80cm
2The node vertical load is: P
1=1/23P, P
2=4/23P, P
3=7/23P, P
4=11/23P, wherein P is the load parameter.Rope sectional area and initial prestress distribution see Table 1.Stiffness bar cross section area 4.43cm
2, beam section amasss 100cm
2, moment of inertia Ix=Iy=833cm
4, the modulus of elasticity of drag-line is 1.8 * 10
11MPa, the modulus of elasticity of stiffness rod member and beam are 2.06 * 10
11MPa
Table 1:
Claims (5)
1. sunflower-shaped cable dome structure, it is characterized in that: it has center inner ring beam (1), stiffness rod member (2), strop (3), notochord (4), vertical strut (5), oblique cord (6) and side ring beam (7), center inner ring beam (1), stiffness rod member (2), notochord (4) and side ring beam (7) are formed sunflower shape grid, one end of stiffness rod member (2) and center inner ring beam (1) are hinged, the other end of stiffness rod member (2) is hinged with an end of inner ring notochord (4), one end of outmost turns notochord (4) and side ring beam (7) are anchored, vertically strut (5) upper end is hinged with notochord (4), vertically an end and the strop (3) of strut (5) lower end and oblique cord (6) are hinged, the other end of oblique cord (6) with and notochord (4) hinged, outmost turns oblique cord (6) is anchored with side ring beam (7), and strop (3) is along the hoop closed arrangement.
2. a kind of sunflower-shaped cable dome structure according to claim 1 is characterized in that: described stiffness rod member (2) is for bearing the stiffness rod member of pressure.
3. a kind of sunflower-shaped cable dome structure according to claim 1 is characterized in that: central upper inner ring beam (1) is for bearing the rigidity ring beam of moment of flexure, shearing and axle power.
4. a kind of sunflower-shaped cable dome structure according to claim 1 is characterized in that, described center inner ring beam (1) absolute altitude is the highest, and vertically strut (5) top absolute altitude hoop is identical, radially successively decreases from inside to outside.
5. a kind of sunflower-shaped cable dome structure according to claim 1 is characterized in that described strop (3), notochord (4), and oblique cord (6) is a prestressed cable.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200831645U CN201193372Y (en) | 2008-02-03 | 2008-02-03 | Sunflower type cable domes |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200831645U CN201193372Y (en) | 2008-02-03 | 2008-02-03 | Sunflower type cable domes |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201193372Y true CN201193372Y (en) | 2009-02-11 |
Family
ID=40392911
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008200831645U Expired - Fee Related CN201193372Y (en) | 2008-02-03 | 2008-02-03 | Sunflower type cable domes |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201193372Y (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101831953A (en) * | 2010-04-02 | 2010-09-15 | 浙江大学 | Rib-patterned rigid cable dome structure with central pull ring |
| 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 |
| CN102619301A (en) * | 2012-03-08 | 2012-08-01 | 东南大学 | Radially-opening cable dome structure |
| CN109750781A (en) * | 2019-01-17 | 2019-05-14 | 上海海事大学 | A kind of rotary cone sunflower-patterned dome |
| CN109972783A (en) * | 2017-12-27 | 2019-07-05 | 南京工程学院 | It is a kind of uniformly to intersect tensioning cable dome structure |
-
2008
- 2008-02-03 CN CNU2008200831645U patent/CN201193372Y/en not_active Expired - Fee Related
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 |
| US8671646B2 (en) | 2009-09-03 | 2014-03-18 | Zhejiang University | Layer-by-layer double-hoop sunflower-shaped cable dome structure and its construction method |
| CN101831953A (en) * | 2010-04-02 | 2010-09-15 | 浙江大学 | Rib-patterned rigid cable dome structure with central pull ring |
| CN102619301A (en) * | 2012-03-08 | 2012-08-01 | 东南大学 | Radially-opening cable dome structure |
| CN102619301B (en) * | 2012-03-08 | 2014-06-04 | 东南大学 | Radially-opening cable dome structure |
| CN109972783A (en) * | 2017-12-27 | 2019-07-05 | 南京工程学院 | It is a kind of uniformly to intersect tensioning cable dome structure |
| CN109750781A (en) * | 2019-01-17 | 2019-05-14 | 上海海事大学 | A kind of rotary cone sunflower-patterned dome |
| CN109750781B (en) * | 2019-01-17 | 2023-10-31 | 上海海事大学 | Rotary conical surface sunflower type cable dome |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20090211 Termination date: 20170203 |