BE507322A - - Google Patents
Info
- Publication number
- BE507322A BE507322A BE507322DA BE507322A BE 507322 A BE507322 A BE 507322A BE 507322D A BE507322D A BE 507322DA BE 507322 A BE507322 A BE 507322A
- Authority
- BE
- Belgium
- Prior art keywords
- construction
- bolts
- pyramid
- equal
- pyramids
- Prior art date
Links
- 238000010276 construction Methods 0.000 claims description 10
- 230000004048 modification Effects 0.000 claims 1
- 238000006011 modification reaction Methods 0.000 claims 1
- 239000011324 bead Substances 0.000 description 4
- 239000004568 cement Substances 0.000 description 1
- 230000001808 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 230000004301 light adaptation Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
Classifications
-
- 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
- E04B1/18—Structures comprising elongated load-supporting parts, e.g. columns, girders, skeletons
- E04B1/19—Three-dimensional framework structures
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
- E04C3/00—Structural elongated elements designed for load-supporting
- E04C3/02—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces
- E04C3/04—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces of metal
- E04C3/08—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces of metal with apertured web, e.g. with a web consisting of bar-like components; Honeycomb girders
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
- E04C3/00—Structural elongated elements designed for load-supporting
- E04C3/30—Columns; Pillars; Struts
- E04C3/32—Columns; Pillars; Struts of metal
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
- E04C3/00—Structural elongated elements designed for load-supporting
- E04C3/38—Arched girders or portal frames
- E04C3/40—Arched girders or portal frames of metal
-
- 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
- E04B1/18—Structures comprising elongated load-supporting parts, e.g. columns, girders, skeletons
- E04B1/19—Three-dimensional framework structures
- E04B2001/1924—Struts specially adapted therefor
- E04B2001/1933—Struts specially adapted therefor of polygonal, e.g. square, cross section
-
- 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
- E04B1/18—Structures comprising elongated load-supporting parts, e.g. columns, girders, skeletons
- E04B1/19—Three-dimensional framework structures
- E04B2001/1981—Three-dimensional framework structures characterised by the grid type of the outer planes of the framework
- E04B2001/1984—Three-dimensional framework structures characterised by the grid type of the outer planes of the framework rectangular, e.g. square, grid
-
- 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
- E04B1/18—Structures comprising elongated load-supporting parts, e.g. columns, girders, skeletons
- E04B1/19—Three-dimensional framework structures
- E04B2001/199—Details of roofs, floors or walls supported by the framework
-
- 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
- E04B1/18—Structures comprising elongated load-supporting parts, e.g. columns, girders, skeletons
- E04B1/19—Three-dimensional framework structures
- E04B2001/1993—Details of framework supporting structure, e.g. posts or walls
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
- E04C3/00—Structural elongated elements designed for load-supporting
- E04C3/02—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces
- E04C3/04—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces of metal
- E04C2003/0486—Truss like structures composed of separate truss elements
- E04C2003/0495—Truss like structures composed of separate truss elements the truss elements being located in several non-parallel surfaces
Landscapes
- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Bridges Or Land Bridges (AREA)
Description
<Desc/Clms Page number 1>
PERFECTIONNEMENTS 'APPORTES AUX CONSTRUCTIONS'DEMONTABLES.
La présente invention se rapporte à une construction démontable d'un type nouveau qui possède des applications multiples telles que poteaux; portiques, grues, ponts et cintres. - -
La construction montée présente la forme d'une poutre réticulée, de directrice rectiligne ou polygonale et de section triangulaire et dont les barres, pouvant être métalliques ou en une autre matière résistante, composent une succession de tétraèdres.
Du point de vue du montage l'élément structural est constitué par une pyramide quadrangulaire dont l'indéformabilité est assurée par une ou les deux diagonales du rectangle de base et, dans ce dernier cas, ces dia- gonales forment une croix de St-André.
Les pyramides sont toutes égales et, pour constituer la construc- tion, elles sont disposées de façon consécutive, juxtaposées l'une à l'autre par un côté de leur base et réunies par les sommets de chaque pyramide voi- sine au moyen de barres additionnelles formant un cordon dénommé cordon infé- rieur.
Les barres de cordon inférieur sont de longueurs variées, afin de conformer la directrice de la construction à une.forme quelconque.
La pyramide est décomposable, pour faciliter son transport, en trois panneaux : deux triangles égaux et une croix ou pièce supérieure de rigidification.
La description qui va suivre, faite en regard des dessins anne- xés, et donnée à titre d'exemple non limitatif, va bien faire comprendre com- ment l'invention peut être mise en pratique.
La figure 1 représente en perspective explosée les pièces qui
<Desc/Clms Page number 2>
composent un élément de.construction.
Sur cette figure, A désigne les triangles, B désigne la croix et C une barre du cordon inférieur; D désigne les boulons de réunion de la croix aux triangles, ! les boulons et écrous de réunion des bases des pyramides consécutives, et F les boulons et écrous de réunion des sommets au cordon inférieur,
Les boulons D traversent les perforations a des éléments! et se vissent dans les perforations taraudées b de l'élément B.
Les boulons et écrous! réunissent la perforation ± d'un élément triangulaire et de la perforation d qui correspond aux éléments de la pyramide suivante.
Les boulons et écrous F assujettissent les extrémités perforées en e d'une barre du cordon inférieur entre les goussets perforés! du sommet d'u- ne pyramide. - . ' '
La figure 2 montre en perspective schématique un exemple d'accou- plement de ces pièces.
Pour illustrer les possibilités de ce genre de construction, on a représenté, sur la figure 3 la vue latérale et frontale d'un poteau; sur la figure 4, on a représenté un portique; sur la figure 5, une grue en po- tence; sur la figure 6, on a représenté un pont droit et, enfin, sur la fi- gure 7, on a montré l'application de cette construction comme cintre de 1' arc d'un pont en béton.
La structure tétraédrique présente trois caractères avantageux :
1 . simplicité de montage, possibilité de se passer de cables ou grues auxiliaires,même dans le cas de cintres de grande ouverture. En tel cas, il suffit d'ancrer sur du ciment la première pyramide de chaque extrémité et en s'appuyant sur celle-ci, de hisser la pyramide suivante, pourvue de sa barre de cordon inférieur et qui est reliée à la première comme ci-dessus mentionné. Pour poursuivre l'opération, on déplace le mécanisme élévateur à l'extrémité de la deuxième pyramide et on hisse et assujettit la troisième; et ainsi de suite jusqu'à ce qu'on atteigne la clé par les deux côtés.
2 . adaptation à des directions quelconques en faisant varier ex- clusivement la longueur des barres du cordon inférieur, soit par substitu- tion de barres différentes, soit par action de manchons tenseurs accouplés aux dites barres.-
3 rigidité et résistance obtenue avec un minimum de barres par la composition tétraédrique, qui a la faculté de résister à des efforts ex- térieurs de direction quelconque et par le fait que le tétraèdre dans l'es- pace, comme le triangle dans le plan, constitue la figure isostatique stric- tement indéformable.
<Desc / Clms Page number 1>
IMPROVEMENTS 'MADE TO REMOVABLE CONSTRUCTIONS.
The present invention relates to a new type of demountable construction which has multiple applications such as poles; gantry cranes, bridges and hangers. - -
The mounted construction has the form of a reticulated beam, with a rectilinear or polygonal directrix and a triangular section and whose bars, which may be metallic or of another resistant material, make up a succession of tetrahedra.
From the point of view of assembly, the structural element is constituted by a quadrangular pyramid whose indeformability is ensured by one or both diagonals of the base rectangle and, in the latter case, these diagonals form a St-André cross. .
The pyramids are all equal and, to constitute the construction, they are arranged consecutively, juxtaposed to each other by one side of their base and joined by the vertices of each neighboring pyramid by means of bars. additional forming a cord called inferior cord.
Bottom bead bars are of varying lengths to conform the construction guideline to any shape.
The pyramid can be broken down, to facilitate its transport, into three panels: two equal triangles and a cross or upper stiffening piece.
The description which will follow, given with reference to the appended drawings, and given by way of non-limiting example, will make it clear how the invention can be put into practice.
Figure 1 shows in exploded perspective the parts which
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make up an element of construction.
In this figure, A designates the triangles, B designates the cross and C a bar of the lower bead; D designates the connecting bolts from the cross to the triangles,! the bolts and nuts joining the bases of consecutive pyramids, and F the bolts and nuts joining the tops to the lower bead,
The bolts D go through the perforations a elements! and are screwed into the threaded holes b of element B.
Bolts and nuts! join the perforation ± of a triangular element and the perforation d which corresponds to the elements of the following pyramid.
Bolts and nuts F secure the perforated E-ends of a lower cord bar between the perforated gussets! from the top of a pyramid. -. ''
FIG. 2 shows in schematic perspective an example of the coupling of these parts.
To illustrate the possibilities of this type of construction, there is shown in FIG. 3 the side and front view of a post; in Figure 4, there is shown a gantry; in figure 5, a crane in post; in figure 6 a straight bridge has been shown and, finally, in figure 7, the application of this construction as an arch of the arch of a concrete bridge has been shown.
The tetrahedral structure has three advantageous characteristics:
1. ease of assembly, possibility of eliminating cables or auxiliary cranes, even in the case of hangers with large opening. In such a case, it suffices to anchor the first pyramid at each end on cement and, leaning on it, to hoist the next pyramid, provided with its lower cord bar and which is connected to the first as follows. above mentioned. To continue the operation, the lifting mechanism is moved to the end of the second pyramid and the third is hoisted and secured; and so on until you reach the key from both sides.
2. adaptation to any direction by varying the length of the bars of the lower bead exclusively, either by substituting different bars, or by the action of tension sleeves coupled to said bars.
3 rigidity and resistance obtained with a minimum of bars by the tetrahedral composition, which has the faculty of resisting external forces in any direction and by the fact that the tetrahedron in space, like the triangle in the plane , constitutes the strictly undeformable isostatic figure.
Claims (1)
Publications (1)
Publication Number | Publication Date |
---|---|
BE507322A true BE507322A (en) |
Family
ID=147331
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
BE507322D BE507322A (en) |
Country Status (1)
Country | Link |
---|---|
BE (1) | BE507322A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0068676A2 (en) * | 1981-06-18 | 1983-01-05 | Mark Whitby | Portal frame structures |
FR2662197A1 (en) * | 1990-05-15 | 1991-11-22 | Samia Cats | Crossbracing triangle for connecting two adjacent trusses of a frame |
-
0
- BE BE507322D patent/BE507322A/fr unknown
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0068676A2 (en) * | 1981-06-18 | 1983-01-05 | Mark Whitby | Portal frame structures |
EP0068676A3 (en) * | 1981-06-18 | 1983-11-09 | Mark Whitby | Portal frame structures |
FR2662197A1 (en) * | 1990-05-15 | 1991-11-22 | Samia Cats | Crossbracing triangle for connecting two adjacent trusses of a frame |
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