CN105863061B - A kind of foldable cylinder cable-membrane analysis with rigid depression bar - Google Patents
A kind of foldable cylinder cable-membrane analysis with rigid depression bar Download PDFInfo
- Publication number
- CN105863061B CN105863061B CN201610237054.9A CN201610237054A CN105863061B CN 105863061 B CN105863061 B CN 105863061B CN 201610237054 A CN201610237054 A CN 201610237054A CN 105863061 B CN105863061 B CN 105863061B
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- Prior art keywords
- unit
- depression bar
- rectangular pyramid
- rigid
- membrane
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Classifications
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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
- E04B1/343—Structures characterised by movable, separable, or collapsible parts, e.g. for transport
-
- 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
Abstract
The invention discloses a kind of foldable cylinder membrane structure with rigid depression bar, including latticed shell structure and the membrane structure being arranged on latticed shell structure, latticed shell structure folds arch unit by more Pin and connected and composed, fold arch unit per Pin to be connected to form along structural span direction by n rectangular pyramid elementary cell, rectangular pyramid elementary cell is made up of four positive pole scissors units；Membrane structure is made up of a folding film unit being arranged on each rectangular pyramid unit, the folding film unit includes a rigid depression bar, the membrane material being attached on rigid depression bar and four drag-lines, the top of rigid depression bar is connected with membrane material top, the bottom of rigid depression bar is connected with four drag-line one end, membrane material bottom is separately fixed on four nodes of rectangular pyramid unit, and the other end of four drag-lines is connected on four ring tie points of rectangular pyramid unit.Compared with existing structure, not only moving process is convenient by the present invention, and structural soundness is good, and dead load is lighter, and folding is flexible, designs and easy for construction.
Description
Technical field
The present invention relates to a kind of foldable cylinder cable-membrane analysis, particularly a kind of foldable cylinder rope with rigid depression bar
Membrane structure.
Background technology
Foldable structure top meets Contemporary Architecture theory, is a Main Trends of The Development of large span spatial structure, it is increasingly
Favored by people.Foldable structure because its have the advantages that short time limit, easily resettlement and it is repeatable utilize, having caused the modern times builds
The great interest for teacher of the building.But, using less in large-span structure, main cause has for it：（1）The design of node of folding grid structure
It is typically complex, still lacks simple structure and practicality, the design of node of cheap suitable engineer applied at present；（2）Folding
The component of folded network is except in addition to by axle power, also by certain moment of flexure, stress performance is bad, and cost is higher；（3）Folding grid structure
Rigidity it is very poor, displacement is more difficult to meet requirement.
Only foldable cylindrical reticulated shell and then can the rigidity of structure deficiency, according to planar film, then can not provide from geometry
The rigidity of shape, and planar film is also easy to that fold and tear occurs, and had not only influenceed attractive in appearance but also had influenceed to use, space membrane is effectively kept away
These shortcomings of planar film are exempted from.
The content of the invention
The present invention to be solved technical problem is to be directed to above-mentioned the shortcomings of the prior art, and it is simple to provide a kind of structure
Single, easy for construction, cost is low and the foldable cylinder cable-membrane analysis of good stress performance, can preferably meet that temporary building is conveniently taken
Build and move and requirement of the long span building to folder function, can more meet the rigidity requirement of membrane structure.
To achieve the above object, the technical solution adopted by the present invention is：
A kind of foldable cylinder cable-membrane analysis with rigid depression bar, including latticed shell structure and it is arranged on the reticulated shell knot
Membrane structure on structure, the latticed shell structure fold arch unit by more Pin and connected and composed, it is characterised in that：It is described that arch list is folded per Pin
Member is connected to form by n rectangular pyramid elementary cell along structural span direction, and n is >=2 natural number, and the rectangular pyramid is substantially single
Member is made up of four positive pole scissors units, and the positive pole scissors unit is made up of two poles, the positive pole
The angle of upper end is more than the angle of lower end between two poles of scissors unit, and four positive pole scissors units lead to from beginning to end successively
Cross endpoint node connection circlewise, the intermediate node of four pole scissors units is generally aligned in the same plane interior, adjacent two Pin foldings arch
Connected between unit using reverse folded scissors unit, the reversely pole scissors unit is also made up of two poles, described anti-
It is less than the angle of lower end, the end section of reverse folded scissors unit to the angle of upper end between two poles of pole scissors unit
Point is connected on the endpoint node that arch unit is folded per Pin along the forward folded scissors unit on structure length direction；It is described
Membrane structure is made up of a folding film unit being arranged on each rectangular pyramid unit, and the folding film unit includes a rigidity and pressed
Bar, the membrane material being attached on the rigid depression bar and four drag-lines, described rigid depression bar is arranged along the high line of rectangular pyramid, described
The top of rigid depression bar is connected with membrane material top, and the bottom of the rigid depression bar is hinged with four drag-line one end, under the membrane material
Portion is separately fixed on four nodes of rectangular pyramid unit, and the other end of four drag-lines is hinged on four of rectangular pyramid unit
On ring tie point.
Equal length of the pole in intermediate node both sides.
The pole is the rod member of plane link or space structure.
Described rigid depression bar is straight-bar and identical length is same.
Described rigid depression bar length should be greater than the length of pole intermediate node side.
The mechanism of the present invention is single-degree-of-freedom system, reduces the quantity of drive device；Further, since what the present invention was formed
Number of components gives a kind of effect of brevity and lucidity of people far fewer than in general folding grid structure, overcomes network sense
See the shortcomings that upper lever is various in disorder；And by having the folding membrane structure dead load of rigid depression bar lighter thereon, open
The rigidity for flexibly, adding structure is closed, structure simple structure, designs and easy for construction, is particularly suitable for the building of medium and small span.
Brief description of the drawings
Fig. 1 is pole scissors list schematic diagram；
Fig. 2 is the single film set on basic rectangular pyramid unit side view upon deployment；
Fig. 3 is the single film set on basic rectangular pyramid unit top view upon deployment；
Fig. 4 encircles setting film schematic diagram on unit for basic fold；
Fig. 5 is the positive and negative connected schematic diagram of pole scissors unit；
Fig. 6 overall structure diagrams；
Fig. 7 is the structural representation of rectangular pyramid unit.
Embodiment
The present invention is further described below in conjunction with the accompanying drawings.
As shown in figure 1, the elementary cell of the present invention is pole scissors unit 1.Each pole scissors unit 1 is by two poles
2 composition, bending place connect in the midpoint of pole 2, two poles 2 of pole scissors unit 1 in bending place pin joint, and dotted line is to fold
The movement locus of pole scissors unit during expansion.
Four folding and expanding direction of motion identical pole scissors units 1 are connected to form a foldable expansion by ring
Rectangular pyramid unit 3, as shown in Figure 7.Any one pole scissors unit 1 of anchor portion, is formed single-degree-of-freedom system, can
Realize overall expansion and fold.Determine after structural span for avoid the incompatible pole size of geometry all by do boost line come it is true
It is fixed.One rectangular pyramid unit 3 is regarded as with a pole scissors unit 1 as object, the folding and expanding of pole scissors unit 1 fortune
Put what annular array was formed centered on dynamic center, a folding film unit 4 is set on each rectangular pyramid unit 3, such as Fig. 2-3 institutes
Show.Folding film unit 4 is by one that meets at any the rigid depression bar 41 on top, the superincumbent membrane material 42 of attachment and four drag-lines 43
Form, high line arrangement of the described rigid depression bar along rectangular pyramid from summit, top is connected with membrane material, bottom and four drag-lines
Be hinged, described membrane material top is fixed at rigid depression bar, and bottom is separately fixed on four nodes of rectangular pyramid unit, described
Four drag-line upper ends be hinged on four ring tie points of rectangular pyramid unit, bottom is fixed at rigid depression bar.
Shape is similar between folding film unit 4, and composition component is identical each other, the company of seamlessly transitting between folding film unit
Connect.N such rectangular pyramid units 3 join end to end, and being directed around half of circumference along span forms Pin folding arch units 5 as schemed
Shown in 4.Wherein n is natural number n >=2.The pin-connected joints of any one pole scissors unit 1 of end are connected with substructure,
Single-degree-of-freedom system is formed, overall expansion can be achieved and fold.Using it is any fold encircle unit interior joint fringe node as
Stationary nodes are connected with bearing, then system is a single-degree-of-freedom system, so as to reach the purpose for reducing drive device quantity.
Positive pole scissors unit 1 is connected signal with a reverse pole scissors unit 1 as shown in figure 5, along structure length
Direction, adjacent pole scissors unit motion are in opposite direction.Pass through per Pin between folding arch unit（n+1）It is individual to be rolled over substantially with folding in arch
Bar scissors unit motion pole scissors unit in opposite direction is connected, and is formed foldable cylinder cable-membrane analysis 6 such as Fig. 6 institutes
Show, whole system can realize that single-degree-of-freedom folding and expanding moves.
When as Figure 2-3, during foldable cylinder cable-membrane analysis expansion, rigid depression bar 41 radially drives membrane material 42
Motion upwards, until membrane material 42 is in tensioning state, structure is fully deployed, and is started to bear extraneous and structure itself load, is
Structure provides rigidity；When foldable cylinder cable-membrane analysis is packed up, membrane material 42 is in relaxed state.
Claims (3)
1. a kind of foldable cylinder cable-membrane analysis with rigid depression bar, including latticed shell structure and it is arranged on the latticed shell structure
On membrane structure, the latticed shell structure by more Pin fold arch unit connect and compose, it is characterised in that：It is described that arch unit is folded per Pin
Be connected to form by n rectangular pyramid elementary cell along structural span direction, n be >=2 natural number, the rectangular pyramid elementary cell
It is made up of four positive pole scissors units, the positive pole scissors unit is made up of two poles, and the positive pole is cut
The angle of upper end is more than the angle of lower end between two poles of formula unit, and four positive pole scissors units pass through from beginning to end successively
Endpoint node connects circlewise, and the intermediate node of four pole scissors units is generally aligned in the same plane interior, adjacent two Pin foldings arch list
Connected between member using reverse folded scissors unit, the reversely pole scissors unit is also made up of two poles, described reverse
The angle of upper end is less than the angle of lower end, the endpoint node of reverse folded scissors unit between two poles of pole scissors unit
It is connected on the endpoint node that arch unit is folded per Pin along the forward folded scissors unit on structure length direction；The film
Structure is made up of a folding film unit being arranged on each rectangular pyramid unit, and the folding film unit includes a rigidity and pressed
Bar, the membrane material being attached on the rigid depression bar and four drag-lines, the rigid depression bar is along the high line where rectangular pyramid summit
Arrangement, the top of the rigid depression bar are connected with membrane material top, and the bottom of the rigid depression bar is connected with four drag-line one end, institute
State membrane material bottom to be separately fixed on four nodes of rectangular pyramid unit, the other end of four drag-lines is connected to four rib
On four ring tie points for boring unit；Equal length of the pole in intermediate node both sides；The rigid depression bar length is big
Length in pole intermediate node side.
2. the foldable cylinder cable-membrane analysis according to claim 1 with rigid depression bar, it is characterised in that：The pole
For plane link or the rod member of space structure.
3. the foldable cylinder cable-membrane analysis according to claim 1 with rigid depression bar, it is characterised in that：Described is firm
Property depression bar is straight-bar and identical length is same.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610237054.9A CN105863061B (en) | 2016-04-18 | 2016-04-18 | A kind of foldable cylinder cable-membrane analysis with rigid depression bar |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610237054.9A CN105863061B (en) | 2016-04-18 | 2016-04-18 | A kind of foldable cylinder cable-membrane analysis with rigid depression bar |
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| Publication Number | Publication Date |
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| CN105863061A CN105863061A (en) | 2016-08-17 |
| CN105863061B true CN105863061B (en) | 2018-01-30 |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106284804B (en) * | 2016-09-09 | 2018-08-21 | 东南大学 | A kind of deployable cylindrical reticulated shell structure that there are six pieces of rigid plates to fold unit |
| CN106284803B (en) * | 2016-09-09 | 2019-01-01 | 东南大学 | A kind of deployable cylindrical reticulated shell structure folding unit with four pieces of rigid plates |
| CN106337523B (en) * | 2016-09-09 | 2018-07-24 | 东南大学 | It is a kind of that there is the deployable cylindrical reticulated shell structure for folding rigid roofing plate |
| CN106758755B (en) * | 2016-11-15 | 2018-06-22 | 东南大学 | A kind of base-supporting folded truss bridge structure |
| CN111364617A (en) * | 2020-04-17 | 2020-07-03 | 广西壮族自治区建筑科学研究设计院 | Steel-film space combined structural unit, structural system, roof and film stretching method |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| US3968604A (en) * | 1974-08-02 | 1976-07-13 | Lockheed Aircraft Corporation | Erectable shelter structure and method of erection |
| JP2530726B2 (en) * | 1989-08-31 | 1996-09-04 | 株式会社久米建築事務所 | Openable roof |
| US8082938B2 (en) * | 2005-10-14 | 2011-12-27 | Dhs Systems Llc | Collapsible shelters with and without a floating hub |
| CN202850202U (en) * | 2012-03-08 | 2013-04-03 | 东南大学 | Folding cable rod dome structure |
| CN102605892B (en) * | 2012-03-08 | 2014-04-16 | 东南大学 | Movable structure based on folding-rod shearing-type unit |
| CN104878865B (en) * | 2015-06-16 | 2017-06-20 | 东南大学 | Radial direction folding film roof system with radial direction drag-line |
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