CN101225682A - Polyhedron spacing rigid frame - Google Patents
Polyhedron spacing rigid frame Download PDFInfo
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- CN101225682A CN101225682A CNA2008100043571A CN200810004357A CN101225682A CN 101225682 A CN101225682 A CN 101225682A CN A2008100043571 A CNA2008100043571 A CN A2008100043571A CN 200810004357 A CN200810004357 A CN 200810004357A CN 101225682 A CN101225682 A CN 101225682A
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Abstract
The invention relates to a polyhedron spatial frame, belonging to the field of structural engineering technique, which comprises a basic unit 3 filling three-dimensional space, a WP type polyhedron composed by a dodecahedron 1 and a tetrakaidecahedron 2. The WP type polyhedron is arrayed in three orthogonal directions to form an array body 4, and the array body 4 rotates into a rotary body 5, and then the building space is cut according to building boundary 7. The cutting sideline and the bar system formed by the sides of the original polyhedron finally form the building structure 6, and the connecting points between the bars are the node points of the structure. The polyhedron spatial frame has only four bar types with different length, and less types of node points, only four bars meeting at each joint. The polyhedron spatial frame has the advantages of good earthquake resistance, high ductility, and can be used in long-span roof (floor) and wall.
Description
Technical field
The present invention relates to a kind of novel polyhedron spacing rigid frame, belong to technical field of structural engineering.
Background technology
1993, Ireland professor Denis Weaire and Robert Phelan proposed a kind of new bubble form---Weaire-Phelan bubble, comprise two kinds of polyhedron unit in the Weaire-Phelan bubble---dodecahedron unit 1 and tetrakaidecahedron unit 2.Both have three kinds of surface configurations, promptly a kind of hexagon and two kinds of pentagons, and seamed edge has four kinds of length of sides, and the angle point form then has three kinds.6 tetrakaidecahedrons and 2 dodecahedrons can be formed elementary cell combination 3, and the elementary cell combination can be filled three dimensions 4 along the direction array of three mutually orthogonals.
National Aquatics Center " the Water Cube " polyhedron that structure adopted has all geometrical properties of Weaire-Phelan bubble unit, it is the ratio difference of four kinds of length of sides, we derive, improve the polyhedron called after class Weaire-Phelan polyhedron that forms this by Weaire-Phelan bubble unit, are called for short class WP polyhedron.The same with the Weaire-Phelan unit, class WP polyhedron is made up of dodecahedron and two kinds of unit of the tetrakaidecahedron, 6 tetrakaidecahedron unit and 2 dodecahedron unit form the elementary cell combination, and the elementary cell combination is extended along three mutually orthogonal directions can fill three dimensions.
The combination of class WP polyhedron elementary cell can be carried out array along three mutually orthogonal directions, thereby forms the big cubic block of being filled by class WP polyhedron.Different with the common net shelf structure is, the external boundary of this big cubic block that is formed by polyhedron is scraggly, must cut it with the plane if will form smooth building surface.For the needs of building surface visual effect, also can will cut 5 again after the big cubic block rotation earlier.Dodecahedron 1, the tetrakaidecahedron 2, the sideline that cuts out on cutting planes has just constituted the upper and lower chord member of roof structure or the inside and outside surperficial chord member of wall body structure respectively, the seamed edge of original each cell cube that is kept between the cut surface has then constituted the web member of inside configuration, the final polyhedron rigid frame 6 that forms.
Summary of the invention
The object of the present invention is to provide a kind of brand-new form of structure, it has advantages such as repeatability is high, and node species is few, and node junction rod member is few, and anti-earthquake ductility is good.
A kind of polyhedron spacing rigid frame that the present invention proposes, it is characterized in that: it mainly contains, dodecahedron 1, the tetrakaidecahedron 2, elementary cell 3, basic cell array body 4, elementary cell rotary body 5, polyhedron spacing rigid frame 6, building border crest line 7, internal node 8, surperficial node 9, rod member 10, bearing 11; Described polyhedron spacing rigid frame 6 is by elementary cell 3, form basic cell array body 4 through array, basic cell array body 4 forms elementary cell rotary body 5 through rotation, again according to crest line 7 cuttings of building border, the common rod member space structures system that forms in the final sideline that forms and original polyhedral limit.
In above-mentioned polyhedron spacing rigid frame, how much constitute the repeatability with height, and its inside has only the rod member of four kinds of different lengths, node species few, has only four rod member junctions on the node;
In above-mentioned polyhedron spacing rigid frame, its elementary cell class WP polyhedron is by the improvement of WP polyhedron, and it has the geometrical property identical with the WP polyhedron.
In above-mentioned polyhedron spacing rigid frame, satisfy different building surface effect and structure and constitute optimization aim by the space, the change cutting position that change polyhedral shape, rotate by the filling of class WP polyhedron.
In above-mentioned polyhedron spacing rigid frame, it is characterized in that geometry was variable when its rod member was hinged, must rigidly connect;
In above-mentioned polyhedron spacing rigid frame, its bar unit bears a power, two-way moment of flexure simultaneously, two-way shearing and moment of torsion, but moment of torsion is very little, can not consider;
In above-mentioned polyhedron spacing rigid frame, its internal node form can be welded hollow spherical joints or tubular joint, and surperficial joint form can be welded hollow spherical joints, tubular joint, drum node or hemisphere half drum node;
In above-mentioned polyhedron spacing rigid frame, its support style can hinged, semi-rigid connection and affixed;
In above-mentioned polyhedron spacing rigid frame, its bar cross section can be uniform section or variable cross-section;
The polyhedron spacing rigid frame structure that the present invention proposes, it is a kind of brand-new spatial steel structure, it is incorporated into the bubble polyhedron that occurring in nature exists in the building structure, reach the perfect structure of building and structure, simultaneously because its good ductility, can be applied to roof system (superstructure) and wall body structure, have the good engineering application prospect.
Description of drawings
Fig. 1 is the dodecahedral elevation of component unit of the present invention.
Fig. 2 is the elevation of the component unit tetrakaidecahedron of the present invention.
Fig. 3 is the elevation by elementary cell of the present invention.
Fig. 4 is the array body elevation that is formed by basic cell array of the present invention.
Fig. 5 is the rotary body stereogram that array body rotation of the present invention forms.
Fig. 6 is a polyhedron spacing rigid frame of the present invention.
The specific embodiment
The present invention is further described below in conjunction with drawings and Examples.
Ask for an interview accompanying drawing 1～6.The 1-dodecahedron, the 2-tetrakaidecahedron, 3-elementary cell, 4-basic cell array body, 5-elementary cell rotary body, 6-polyhedron spacing rigid frame, 7-building border crest line, 8-internal node, 9-surface node, 10-rod member, 11-bearing.
A kind of new spatial rigid frame of the present invention.The basic comprising unit's dodecahedron 1 of described polyhedron spacing rigid frame and the tetrakaidecahedron 2, mutually combining constitutes elementary cell 3.Form array body 4 through array, again by array body 4, rotation forms rotary body 5, according to 7 cuttings of building border, finally forms this polyhedron spacing rigid frame 6 of the present invention.
Embodiment one
At first, the elementary cell of being made up of dodecahedron, the tetrakaidecahedron can be according to rule array, the rotation of first-class, and then cuts in the intended manner, just can form space rigid of the present invention.Wherein, the length of side of dodecahedron, the tetrakaidecahedron, and the mode of cutting can change.
The formation of polyhedron spacing rigid frame need be through processes such as the combination of polyhedron unit, array, rotation, cuttings, therefore the position of elementary cell, axis of rotation, the anglec of rotation, cut surface etc. all is the important parameter that influence how much formations of overall structure, and can change.Make it to satisfy the requirement of following two aspects:
(1) requirement of architectural effect is satisfied on the surface (roofing or metope) of cutting formation.As " the Water Cube " structure, require the polygon pattern of roofing and metope to reach and both have repeatability and can keep a unordered at random visual effect.
(2) requirement of structure construction.Run into surperficial chord member for fear of the internal node of structure, the position of cut surface should be satisfied internal node and is not less than a certain particular value from the minimum range of cut surface, as requiring to be not less than 0.5m in " the Water Cube ".
Can apply the present invention to roof system, superstructure and wall body structure.
Claims (5)
1. polyhedron spacing rigid frame, it is characterized in that: it mainly contains, dodecahedron (1), the tetrakaidecahedron (2), elementary cell (3), basic cell array body (4), elementary cell rotary body (5), polyhedron spacing rigid frame (6), building border crest line (7), internal node (8), surperficial node (9), rod member (10), bearing (11); Described polyhedron spacing rigid frame (6) is by elementary cell (3), form basic cell array body (4) through array, basic cell array body (4) forms elementary cell rotary body (5) through rotation, again according to building border crest line (7) cutting, the rod member space structures system that the final sideline that forms and original polyhedral limit form jointly.
2. polyhedron spacing rigid frame according to claim 1, it is characterized in that: described elementary cell (3) is by dodecahedron (1), and the tetrakaidecahedron (2) forms class WP polyhedron along three mutually orthogonal direction arrays, space by class WP polyhedron is filled cuts out architectural space.
3. polyhedron spacing rigid frame according to claim 1, it is characterized in that: described in polyhedron spacing rigid frame (6), the form of its internal node (8) is welded hollow spherical joints or tubular joint, and the form of described surperficial node (9) is welded hollow spherical joints, tubular joint, drum node or hemisphere half drum node.
4. polyhedron spacing rigid frame according to claim 1 is characterized in that: described in polyhedron spacing rigid frame (6), its rod member (10) cross section is uniform section or variable cross-section.
5. polyhedron spacing rigid frame according to claim 1 is characterized in that: described in polyhedron spacing rigid frame (6), its bearing (11) form is hinged, semi-rigid connection or affixed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2008100043571A CN101225682A (en) | 2008-01-23 | 2008-01-23 | Polyhedron spacing rigid frame |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2008100043571A CN101225682A (en) | 2008-01-23 | 2008-01-23 | Polyhedron spacing rigid frame |
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| CN101225682A true CN101225682A (en) | 2008-07-23 |
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| CNA2008100043571A Pending CN101225682A (en) | 2008-01-23 | 2008-01-23 | Polyhedron spacing rigid frame |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104818771A (en) * | 2015-04-27 | 2015-08-05 | 王子琛 | Spatial rigid frame combined by regular polyhedrons |
| CN113756432A (en) * | 2021-10-14 | 2021-12-07 | 浙大城市学院 | Fourteen-surface-body-stacked combined spatial curved surface reticulated shell structure and forming method |
-
2008
- 2008-01-23 CN CNA2008100043571A patent/CN101225682A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104818771A (en) * | 2015-04-27 | 2015-08-05 | 王子琛 | Spatial rigid frame combined by regular polyhedrons |
| CN104818771B (en) * | 2015-04-27 | 2016-04-27 | 王子琛 | The space rigid of regular POLYHEDRAL COMBINATORICS |
| CN113756432A (en) * | 2021-10-14 | 2021-12-07 | 浙大城市学院 | Fourteen-surface-body-stacked combined spatial curved surface reticulated shell structure and forming method |
| CN113756432B (en) * | 2021-10-14 | 2023-03-10 | 浙大城市学院 | Fourteen-surface-body-stacked combined spatial curved surface reticulated shell structure and forming method |
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Open date: 20080723 |