EP0065089B1 - Corps de refoulement - Google Patents

Corps de refoulement Download PDF

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Publication number
EP0065089B1
EP0065089B1 EP82102178A EP82102178A EP0065089B1 EP 0065089 B1 EP0065089 B1 EP 0065089B1 EP 82102178 A EP82102178 A EP 82102178A EP 82102178 A EP82102178 A EP 82102178A EP 0065089 B1 EP0065089 B1 EP 0065089B1
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EP
European Patent Office
Prior art keywords
grid structure
displacement body
sheet
concrete
portions
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
Application number
EP82102178A
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German (de)
English (en)
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EP0065089A1 (fr
Inventor
Heinz Ing.Grad. Carl
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Cessione angelika Kirchner - Carl
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Individual
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Priority claimed from DE19813119705 external-priority patent/DE3119705A1/de
Priority claimed from DE19813119704 external-priority patent/DE3119704A1/de
Priority claimed from DE19813129165 external-priority patent/DE3129165A1/de
Application filed by Individual filed Critical Individual
Priority to AT82102178T priority Critical patent/ATE10662T1/de
Publication of EP0065089A1 publication Critical patent/EP0065089A1/fr
Application granted granted Critical
Publication of EP0065089B1 publication Critical patent/EP0065089B1/fr
Expired legal-status Critical Current

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Classifications

    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
    • E04C2/00—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels
    • E04C2/02—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by specified materials
    • E04C2/04—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by specified materials of concrete or other stone-like material; of asbestos cement; of cement and other mineral fibres
    • E04C2/044—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by specified materials of concrete or other stone-like material; of asbestos cement; of cement and other mineral fibres of concrete
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
    • E04B5/00—Floors; Floor construction with regard to insulation; Connections specially adapted therefor
    • E04B5/16—Load-carrying floor structures wholly or partly cast or similarly formed in situ
    • E04B5/17—Floor structures partly formed in situ
    • E04B5/18—Floor structures partly formed in situ with stiffening ribs or other beam-like formations wholly cast between filling members
    • E04B5/19—Floor structures partly formed in situ with stiffening ribs or other beam-like formations wholly cast between filling members the filling members acting as self-supporting permanent forms
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
    • E04B5/00—Floors; Floor construction with regard to insulation; Connections specially adapted therefor
    • E04B5/16—Load-carrying floor structures wholly or partly cast or similarly formed in situ
    • E04B5/32—Floor structures wholly cast in situ with or without form units or reinforcements
    • E04B5/326—Floor structures wholly cast in situ with or without form units or reinforcements with hollow filling elements

Definitions

  • the invention relates to a displacement body of the type explained in the preamble of claim 1 and to a component produced using this displacement body. It also relates to a method for producing a displacement body.
  • a displacement body which consists of a metallic lattice and a flexible membrane.
  • the membrane is made of waterproof paper. This waterproof paper covers the side of the latticework facing away from the concrete and is attached to the longitudinal bars with wire.
  • the production of such a displacement body is quite labor-intensive, since the longitudinal rods must first be welded on individually, the arches, at least at the beginning of the welding work, having to be adequately fixed at a predetermined distance.
  • the membrane is fastened using zigzag seams with wire, which in turn can only be applied one at a time.
  • the membrane must be made of a relatively tear-resistant material, since it has to absorb the entire weight of the poured concrete and is only supported by the thin wire loops of the seams, whereby the puncture holes also create weak points.
  • a hollow ceiling body which is designed as a circular cylinder to facilitate the concrete filling and to improve the concrete compaction.
  • This hollow ceiling consists of a support made of circular wooden rods and wooden rods nailed over them. These can also be covered with waterproof paper or plastic film.
  • This displacement body also has to be produced in costly and time-consuming manual work and is accordingly expensive.
  • a displacement body which is composed of extruded profiles made of thermoplastic synthetic resin by means of intermediate pieces. Stiffening struts must be provided in the interior of the hollow profile in order to achieve the necessary stability. In addition, profiles are formed on the outer longitudinal edges of the outer sides, onto which the connecting piece must be pushed. Such displacement bodies are expensive to manufacture due to their complex shape. In the production of components by means of these displacement bodies, additional time must also be expended in order to connect the individual profiles to one another by means of the intermediate webs.
  • Components made of concrete with recesses created by hollow profiles are e.g. known from DE-A No. 2536731.
  • the displacers consist of spaced apart, approximately cubic, downward-open molded plastic parts.
  • the invention has for its object to provide a displacement body of the type mentioned, which is inexpensive and easy to manufacture, hardly has its own weight and still meets the requirements with regard to stability.
  • the displacement body according to the invention consisting of a deformed structural steel mat and a shrink-on shrink film made of plastic, can be produced inexpensively and quickly in a wide variety of forms.
  • the structural steel mat is available everywhere in the desired stability and can be deformed relatively easily.
  • the shrink film can be pulled taut over the latticework with simple means and attached tear-proof, without weak points.
  • the displacement body according to the invention also has a low weight and sufficient stability and can be transported in a closely stacked manner to save space.
  • the shrink film applied to the latticework on both sides can be connected to one another and / or to the lattice in a simple manner without having to be fixed beforehand, so that it encloses the lattice between them.
  • good corrosion protection is also achieved in the interior of the hollow profile in the case of lattice materials that are susceptible to this.
  • the film-free foot area according to claim 3 improves the anchoring of the displacement body with the concrete surrounding it and makes it possible to produce a closed concrete slab below the recess.
  • Claim 4 describes a displacement body for the simultaneous production of several recesses, which can be used without the additional handles required in the prior art.
  • the film-free intermediate pieces are embedded in the concrete and result in secure anchoring. At the same time, they serve as a spacer between the hollow profiles.
  • Claim 5 describes a particularly advantageous embodiment for producing ribbed concrete parts.
  • the largely closed displacement body according to claim 7 is particularly simple and inexpensive to manufacture.
  • Claims 8 and 9 describe a further, advantageous embodiment of a displacement body.
  • the end sections are closed by the cover without additional welding work being required.
  • the component according to claims 10 to 12 with the displacement body made of a structural steel mat and a shrunk-on film can be produced inexpensively and quickly.
  • the displacement body used is sufficiently stable and yet very light, so that it does not noticeably increase the weight of the finished component.
  • the film-free foot region of the displacement body is connected to the reinforcement of the component, whereby the manufacturing effort of the entire component can be reduced further, whereby the anchoring is improved or a joint reinforcement is achieved by the upward-facing edge regions of the reinforcement mat according to claim 14.
  • a displacement body made of a plurality of hollow profiles connected by means of intermediate pieces makes uncomplicated and quick manufacture possible, the intermediate pieces acting both as a spacer between the hollow profiles and as an anchor.
  • the edge areas pointing upward at approximately right angles further improve the anchoring or can be used as joint reinforcements.
  • edge regions of the reinforcement mat pointing upward at right angles are expediently bridged with a U-shaped bracket in the case of a ceiling produced from the components according to the invention.
  • Claim 18 describes a particularly advantageous method for producing a displacement body.
  • the film shrunk on both sides according to claim 19 ensures good protection against corrosion.
  • Fig. 1 shows a displacement body in the form of a box-like hollow profile which is trapezoidal in longitudinal and cross section and which, e.g. is used to manufacture ribbed concrete ceilings.
  • the displacement body consists of a wall made of latticework 1 with a flexible film 2 covering the outside facing the concrete.
  • the latticework 1 consists of a deformed structural steel mat, the wire thickness and mesh size being variable depending on the requirements for stability.
  • the flexible film2 is a common plastic shrink film.
  • FIG. 2 shows a displacement body according to the invention in the form of a channel profile open at the bottom with side walls diverging downwards, in which a foot region 3 is not covered by the film 2.
  • This film-free foot region 3 expediently extends along all boundary edges of the open side of the hollow profile.
  • the film-free area 3 is completely enclosed by the displacement body when it is embedded in concrete and results in good anchoring.
  • the wall on these narrow sides 4 only suffices from foil 2 without the reinforcing latticework 1.
  • Such a displacement body can be seen in FIG. 3.
  • the latticework 1 can be produced from a structural steel mat without further welding or other connection work on the boundary edges of the narrow sides 4 only by, for example, pressing or bending.
  • the displacement body in the form of a channel or channel profile which is open at the bottom and is used, for example, for producing ribbed concrete ceilings.
  • the displacement body in turn consists of a wall made of latticework 1 and shrink film 2.
  • the latticework 1 is a deformed structural steel mat.
  • the film 2 covers with a layer 2a the side of the latticework 1 that will later face the concrete, and with a layer 2b the side later facing away from the concrete.
  • the films 2a and 2b are at least on the lower longitudinal edges of the channel or channel profile Welding points 5 connected to each other.
  • the two foils 2a and 2b can also be welded to one another at the front edges of the displacement body.
  • FIG. 4a shows the course of the two flexible foils 2a and 2b drawn in bold in section on the finished displacement body. Further connection points in the form of point or area-shaped welds 6 are provided within the grid openings.
  • a displacement body can be seen, as z. B. is used to manufacture ribbed concrete elements.
  • the displacement body consists of a series of parallel, downwardly open channel profiles made of latticework 1, which is covered with a film 2 such that a foot area 3 remains free on the lower long sides of the hollow profiles.
  • the foot areas 3 of two channel profiles lying next to one another are connected to one another by webs 7.
  • the longitudinal edge region 8 of the latticework 1 is bent upward at approximately a right angle. Reinforcing struts 9 can be attached across the lower, open side of the hollow profiles.
  • the latticework 1 is formed by a deformed structural steel mat.
  • the rectilinear intermediate webs drawn in the figures can also be designed as an arch, hump or provided with beads to improve stability.
  • a trough-shaped displacer can be seen which is open at both of its end portions, i.e. is not covered by latticework 1 and foil 2 or 2a, b. This end section was closed by a cover 11 made of plastic.
  • the cover 11 is provided with a groove 12 along its edge corresponding to the profile.
  • This groove 12 is assigned to the end edge 13 of the displacement body.
  • the width and the shape of the groove 12 are dimensioned such that the end edge 13 is firmly held after insertion.
  • the cover 11 is here provided with opposing latching tongues 14 which engage in contact with the inner surfaces of the closed wall sections.
  • FIG. 11 shows a section through a rib component made of concrete 15 with a displacement body according to the invention enclosed therein in the form of a hollow profile 16, analogously to FIG. 1.
  • the displacement body is composed again of a shaped lattice work 1 and a film 2 spanning this.
  • the latticework 1 consists of a structural steel mat in the form of a box-shaped or quiver-shaped hollow profile.
  • the film 24 is shrunk on.
  • FIG. 12 shows a plate-shaped component made of concrete 15, which is provided with several tunnel-like recesses in order to save weight. These recesses are produced by a displacement body according to FIGS. 5 and 6.
  • the hollow profiles 16 are connected to one another by intermediate pieces 7.
  • the intermediate pieces 7 are designed as webs and run in one piece with the latticework 1 of the hollow profiles 16.
  • the lattice work 1 has an upwardly directed, film-free edge area 8 for better anchoring in the concrete 15.
  • Crossing struts (not shown) can be attached across the lower open sides of the hollow profiles 16 to stabilize the shape.
  • reinforcement elements e.g. Lattice girder, and reinforcement mats cast into the concrete below and possibly above the recesses.
  • FIG. 13 shows a component made of concrete 15 in which the corresponding number of hollow profiles 16, in particular according to FIG. 2, has been embedded in order to produce a plurality of recesses.
  • the hollow profiles 16 here consist of individual, downwardly open channel profiles from the latticework 1 made of structural steel and the shrunk-on film 2.
  • the film-free foot areas 3 are placed on a conventional reinforcement mat 17.
  • the reinforcement mat 17 is bent approximately vertically upward in its edge region 18 and extends into a recessed groove in the abutting edge of the component.
  • FIG. 14 shows two components lying side by side, specifically according to FIG. 13.
  • the edge regions 18 of the reinforcement mats 17 pointing upwards are spanned to form a joint reinforcement with a U-shaped bracket 19.
  • the joint can then be filled.
  • the hollow profiles here have a box shape, the narrow sides 20 also being enclosed by concrete 15. It has been shown that in the case of such elongated, narrow hollow profiles, which are also to be closed on the narrow sides 20, it is quite sufficient to make the wall on these narrow sides 20 only from film 2 without the reinforcing latticework 1. As a result, the latticework 1 can be made from a structural steel mat without further welding or other connection work on the boundary edges of the narrow sides 20 only by e.g. Pressing or bending can be made.
  • a component according to FIG. 11 is produced by placing the displacement body on a formwork and filling concrete in the usual thickness.
  • the components according to FIGS. 12 to 15 are produced by first pouring a concrete sub-layer and pressing the displacement body, with or without a reinforcement mat, up to the edge of the film, so that the film-free foot areas, the webs and / or the reinforcement mat of Concrete are enclosed. Then concrete can be poured in the desired shape and thickness. Of course, only a single recess can be made in the concrete using the latter method if a displacement body in the form of a single hollow profile with a foil-free foot area is used.
  • the displacement body according to the invention can be produced by a first method in such a way that the film 2 is shrunk onto a preformed hollow profile made of latticework 1 which corresponds to the contour shapes of the recess.
  • the film 2 can then either be covered as a tubular shrink film or folded out of a flat piece of film and shrunk under the action of heat, the cut edges being firmly connected to one another or to the latticework 1.
  • This process can also be used, at least in the circumferential direction, to produce closed displacement bodies by pulling and shrinking a tubular film over the preformed latticework (e.g. in the case of a displacement body for a stair component).
  • the displacement bodies according to FIG. 3 are produced with this method, the latticework 1 made of a structural steel mat without further welding or other connection work on the boundary edges of the narrow sides only by e.g. Pressing or bending can be shaped.
  • Another preferred method for producing the displacement body according to the invention is that the film 2 is shrunk onto the still flat lattice work 1 and that the lattice work 1 and the film 2 are then brought together into the shape of the desired recess.
  • Displacement bodies in particular according to FIGS. 5 to 7, 12 and 15, are produced by placing pieces of film the size of the circumference of the recess on a flat structural steel mat 1 at the desired distance and fastening them by shrinking under the action of heat. If it is ensured that the film is stretched tightly over the latticework, it is sufficient to attach only the edges of the film in the manner specified. Then the latticework, together with the foil on it, is brought into the desired shape. Then the reinforcing struts 9 can e.g. be welded on.
  • FIGS. 16 and 17 offer particular advantages for displacement bodies provided with film on both sides.
  • 16 shows a structural steel mat 1 used for producing the displacement body according to the invention and provided with the film 2 on both sides before the deformation.
  • the manufacturing process is such that the structural steel mat 1 is first covered on both sides with a plastic film 2a and 2b.
  • the two plastic films 2a and 2b are then exposed to the action of heat, whereby they connect to one another and / or to the latticework 1 through the lattice openings.
  • the dimensions of the latticework 1, which is provided with the film 2 in one operation suitably depend on the place of manufacture and the available possibilities.
  • a piece of the latticework 1 exceeding the dimensions of the wall for a single displacement body is provided with the flexible foils 2a and 2b.
  • the foils 2a and 2b are connected to one another in the manner indicated.
  • the entire piece is then cut, for example along dash-dotted dividing lines 21, into individual sections each the size of a displacement body.
  • the separation is also advantageously carried out under the action of heat, so that the foils 2a and 2b also weld at the dividing lines 21.
  • the sections are then bent into displacers of the desired shape. Since these sections are very easy to transport, they can easily be shaped on site.
  • latticework 1 in the size required for each individual displacement body, is coated separately with the foils 2a and 2b.
  • a tubular shrink film made of plastic is also suitable for this variant. The tubular film is pulled over the latticework, welded and shrunk on. Prepared in this way, the latticework and film are then formed together to form the displacement body.
  • This method is particularly easy to modify for the mass production of smaller, equally large displacement bodies by covering a continuous web of latticework 1 with the tubular film 2 or covering it with the two films 2a and 2b, welding it and then dividing it into sections along the dash-dotted lines 21.
  • wire thickness and mesh size can also be varied depending on the required strength. Particularly light components are achieved if, in addition to these displacement bodies, which have hardly any dead weight, a lightweight concrete mixed, for example, from concrete and foam flakes is used. Furthermore, the foil-free foot areas are only necessary where the displacement body is to be firmly anchored in the concrete of the component. Furthermore, the two foils can be welded within the grid openings and at the edge by mechanical pressure during shrinking.
  • the displacement body For uses in which the displacement body is greater loads has to withstand, its wall may be supported from the inside with encryption s t eifungsbügeln.
  • the stiffening brackets have an angular cross-section, the legs of the angle being provided with latching devices for the lower longitudinal edges, for example a channel profile, and the apex of the angle carrying a support plate which bears against the upper wall of the channel profile. The legs thus keep the width of the channel profile constant even under load, while the support plate secures the upper wall against bending.
  • the displacement body according to the invention can also be used in a double or multi-storey design without any significant increase in the weight of the component.

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  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Forms Removed On Construction Sites Or Auxiliary Members Thereof (AREA)
  • Laminated Bodies (AREA)

Claims (25)

1. Corps de refoulement pour produire des cavités dans des éléments en béton, sous la forme d'au moins un profilé creux comportant une paroi qui détermine les formes de la silhouette des cavités, ladite paroi consistant en une structure portante comprenant un treillis métallique (1 ) et une feuille souple (2), caractérisé par le fait que le treillis métallique (1 ) est un treillis en acier de construction et la feuille souple (2) est une pellicule rétractable tendue sur ledit treillis (1 ) au moins du côté tourné vers le béton.
2. Corps de refoulement selon la revendication 1, caractérisé par le fait qu'une pellicule rétractable (2) se trouve également du côté du treillis (1) éloigné du béton et par le fait que les feuilles (2a et 2b) sont réunies d'un seul tenant et/ou reliées au treillis (1).
3. Corps de refoulement selon l'une des revendications 1 ou 2, caractérisé par le fait que la région de base (3) d'un profilé creux ouvert vers le bas est exempte de feuille (2).
4. Corps de refoulement selon l'une des revendications 1 à 3, caractérisé par le fait que, en vue de produire simultanément plusieurs cavités, les profilés creux sont reliés les uns aux autres par des pièces intercalaires (7) en treillis (1 ), exemptes de feuille.
5. Corps de refoulement selon la revendication 4, caractérisé par le fait que, pour fabriquer des éléments en béton nervurés, les profilés creux présentent la forme de profils de gorge parallèles qui sont reliés les uns aux autres par les pièces intercalaires (7) en forme de membrures exemptes de feuille.
6. Corps de refoulement selon l'une des revendications 4 ou 5, caractérisé par le fait que le treillis (1 ) comporte des zones marginales (8) exemptes de feuille et cintrées approximativement à angle droit vers le haut.
7. Corps de refoulement selon l'une des revendications 1 à 6, caractérisé par le fait que, en présence de profilés creux fermés dans une large mesure et dont les dimensions des régions de paroi sont très différentes, notamment en présence de' profilés longs et étroits en caissons, des régions de paroi présentant la plus petite surface (4, 10) consistent seulement en une feuille (2) sans treillis (1).
8. Corps de refoulement selon l'une des revendications 1 à 6, caractérisé par le fait que, en présence de profilés creux comportant au moins une région de paroi ouverte et non formée par le treillis (1 ) et par la feuille (2), notamment en pésence d'une zone extrême ouverte à la face frontale, cette dernière est obturée par un couvercle emboîtable (11) en matière plastique, ce couvercle (11 ) étant muni, dans la région des arêtes finales (13) des régions fermées de paroi contiguës s'étendant perpendiculairement à la région de paroi ouverte, au moins partiellement d'une rainure (12) pour l'emboîtement desdites arêtes finales (13).
9. Corps de refoulement selon l'une des revendications 1 à 6, caractérisé par le fait que, en présence de profilés creux comportant au moins une région de paroi ouverte non formée par le treillis (1) et par la feuille (2), notamment en présence d'une zone extrême ouverte à la face frontale, cette dernière est obturée par un couvercle emboîtable (11) en matière plastique, ce couvercle (11 ) étant doté, au moins dans la région des arêtes finales (13) de deux régions opposées fermées de paroi s'étendant perpendiculairement à la région de paroi ouverte, de languettes enclique- tables (14) venant s'appliquer par déclic contre lesdites arêtes finales (13).
10. Elément de construction en béton présentant des cavités produites par un corps de refoulement subsistant dans ledit élément de construction, caractérisé par le fait que le corps de refoulement consiste en au moins un profilé creux (16) comprenant un treillis (1 ) sous la forme d'un treillis en acier de construction et une pellicule rétractable (2) qui est tendue sur ledit treillis du côté tourné vers le béton (15).
11. Elément de construction selon la revendication 10, caractérisé par le fait que le treillis (1 ) est muni d'une pellicule rétractable (2) également du côté éloigné du béton et par le fait que les deux feuilles (2a et 2b) sont réunies d'un seul tenant et/ou reliées au treillis (1 ).
12. Elément de construction selon l'une des revendications 10 ou 11, caractérisé par le fait que, dans le cas de corps de refoulement en forme de profilés creux (16) ouverts vers le bas, une région de base (3) est exempte de feuille (2) et noyée dans du béton (15).
13. Elément de construction selon la revendication 12, caractérisé par le fait que la région de base (3) exempte de feuille est reliée à un treillis d'armature plan (17).
14. Elément de construction selon la revendication 13, caractérisé par le fait que le treillis d'armature (17) présente des zones marginales (18) tournées approximativement à angle droit vers le haut.
15. Elément de construction selon l'une des revendications 10 à 12, caractérisé par le fait que le corps de refoulement se compose de plusieurs profilés creux (16) reliés les uns aux autres par des pièces intercalaires (7) en treillis (1) conformées en des membrures et par le fait que les pièces intercalaires (7) sont exemptes de feuille (2) et sont noyées dans du béton (15).
16. Elément de construction selon la revendication 15, caractérisé par le fait que le treillis (1) présente des zones marginales (8) exemptes de feuille, tournées approximativement à angle droit vers le haut et noyées dans du béton.
17. Plafond constitué par des éléments de construction fabriqués selon l'une des revendications 14 ou 16, caractérisé par le fait que les zones marginales (8, 18) tournées vers le haut et s'engageant dans les joints entre deux éléments de construction voisins sont coiffées par un étrier (19) en U.
18. Procédé de fabrication d'un corps de refoulement, caractérisé par le fait qu'une pellicule rétractable est rétractée sur un treillis métallique se présentant sous la forme d'un treillis en acier de construction.
19. Procédé de fabrication d'un corps de refoulement selon la revendication 18, caractérisé par lefaitque letreillis est recouvert d'une pellicule rétractable respective sur ses deux faces et par le fait que, lors du retrait, les deux feuilles sont réunies d'un seul tenant et/ou reliées au treillis.
20. Procédé de fabrication d'un corps de refoulement selon l'une des revendications 18 ou 19, caractérisé par le fait que le treillis est tout d'abord amené à la forme du corps de refoulement, après quoi la feuille est rétractée sur ce treillis.
21. Procédé selon la revendication 20, caractérisé par le fait que, pour fabriquer un corps de refoulement fermé au moins dans le sens circonférentiel, une pellicule rétractable du type tuyau souple est enfilée et rétractée sur le treillis.
22. Procédé de fabrication d'un corps de refoulement selon l'une des revendications 18 ou 19, caractérisé par le fait que la feuille est reliée au treillis encore plan, après quoi le corps de refoulement est constitué à partir dudit treillis garni de ladite feuille.
23. Procédé de fabrication d'un corps de refoulement selon la revendication 22, caractérisé par le fait qu'une feuille est rétractée seulement par zones sur un treillis plan, puis ledit treillis est mis en forme conjointement à ladite feuille pour constituer le corps de refoulement.
24. Procédé selon l'une des revendications 22 ou 23, caractérisé par le fait qu'un morceau du treillis, dont les dimensions excèdent celles nécessaires pour la paroi d'un corps de refoulement unique, est muni de la pellicule rétractable et est subdivisé, avant sa mise en forme, en des pièces individuelles dont les dimensions correspondent aux cotes effectivement nécessaires.
25. Procédé selon l'une des revendications 22 ou 23, caractérisé par le fait qu'un morceau du treillis, dont les dimensions excèdent celles nécessaires pour la paroi d'un corps de refoulement unique, est muni de la feuille, puis mis en forme.
EP82102178A 1981-05-18 1982-03-17 Corps de refoulement Expired EP0065089B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT82102178T ATE10662T1 (de) 1981-05-18 1982-03-17 Verdraengungskoerper.

Applications Claiming Priority (8)

Application Number Priority Date Filing Date Title
DE3119703 1981-05-18
DE3119705 1981-05-18
DE3119703 1981-05-18
DE19813119705 DE3119705A1 (de) 1981-05-18 1981-05-18 Verdraengungskoerper
DE3119704 1981-05-18
DE19813119704 DE3119704A1 (de) 1981-05-18 1981-05-18 Verdraengungskoerper
DE19813129165 DE3129165A1 (de) 1981-07-23 1981-07-23 Verdraengungskoerper
DE3129165 1981-07-23

Publications (2)

Publication Number Publication Date
EP0065089A1 EP0065089A1 (fr) 1982-11-24
EP0065089B1 true EP0065089B1 (fr) 1984-12-05

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EP82102178A Expired EP0065089B1 (fr) 1981-05-18 1982-03-17 Corps de refoulement

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US (1) US4495744A (fr)
EP (1) EP0065089B1 (fr)
AU (1) AU551508B2 (fr)
BR (1) BR8202859A (fr)
CA (1) CA1179860A (fr)
DK (1) DK152996C (fr)
ES (3) ES275052Y (fr)
NZ (1) NZ200627A (fr)

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IT1305513B1 (it) * 1998-07-03 2001-05-09 Daliform S R L Elemento prefabbricato modulare per uso edilizio
DE19837077A1 (de) * 1998-08-17 2000-02-24 Haeussler Planung Gmbh Bewehrungskorb und dessen Anordnung für die Herstellung von Stahlbeton-Hohlkörperplatten
BE1015117A5 (nl) * 2002-09-23 2004-10-05 Belvi Nv Prefabelement en werkwijze voor het vervaardigen ervan.
GB2394727A (en) * 2002-11-01 2004-05-05 Mohammad Yunas Elements for forming a void in a foundation
WO2005061804A1 (fr) * 2003-12-23 2005-07-07 The Australian Steel Company (Operations) Pty Ltd Dispositif pour former des cavites
EP1568827A1 (fr) * 2004-02-25 2005-08-31 Cobiax Technologies AG Procédé et moyen de fabrication de pièces en béton
US20080035830A1 (en) * 2004-05-11 2008-02-14 The Australian Steel Company (Operations) Pty Ltd Cavity Former
EA009028B1 (ru) * 2004-08-13 2007-10-26 Бам Аг Железобетонная плита или панель перекрытия, содержащая полые блоки
CZ297936B6 (cs) * 2005-02-22 2007-05-02 Jasan@Petr Stropní konstrukce a zpusob její výroby
US20070000202A1 (en) * 2005-06-30 2007-01-04 Yue-Yue Yang Artificial stone slab having a lining structure
CN101063326B (zh) * 2006-04-29 2010-11-03 邱则有 一种砼结构用开口箱
CN101240574B (zh) * 2007-02-05 2011-06-08 湖南邱则有专利战略策划有限公司 一种现浇砼空心板
PT2189586E (pt) * 2008-11-19 2011-07-11 Cobiax Technologies Ag Elemento de painel dispondo de um reforço
US20140083002A1 (en) * 2010-04-07 2014-03-27 Paul C. McMichael Garden plant protector
KR101245602B1 (ko) * 2010-12-28 2013-03-20 주식회사 흥아기연 블리스터 포장용 카톤 성형장치
CN103031920A (zh) * 2012-05-10 2013-04-10 成都锦城梦真科技有限公司 一种建筑石膏模盒及使用其的空腹楼板结构
CN104746890B (zh) * 2015-01-29 2017-04-12 天津市房屋质量安全鉴定检测中心 密肋空心砖楼板加固方法
CN104695610A (zh) * 2015-04-03 2015-06-10 王勇 一种加强上盖板钢丝网架内支撑箱体
CN105064597B (zh) * 2015-07-30 2016-05-25 陈风平 一种密肋楼板填充预制切体构件及制造方法
CN105507483A (zh) * 2016-01-25 2016-04-20 王勇 一种抗上浮自定位钢丝网架轻质结构箱体
CN105926824A (zh) * 2016-07-05 2016-09-07 周雄浩 轻型空心砌块
CN106760144A (zh) * 2017-01-11 2017-05-31 保定恒超新型材料科技有限公司 一种现浇空腹楼盖填充体
DE102017119087A1 (de) 2017-08-21 2019-02-21 Deutsches Zentrum für Luft- und Raumfahrt e.V. Verdrängungskörper aus Hochleistungsaerogelbeton
US11352789B2 (en) 2018-06-01 2022-06-07 Matter Up Pty Ltd Void former
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Also Published As

Publication number Publication date
AU551508B2 (en) 1986-05-01
DK152996B (da) 1988-06-06
ES275052Y (es) 1986-02-16
DK152996C (da) 1988-10-17
ES521469A0 (es) 1984-06-01
ES275052U (es) 1985-06-16
ES279898U (es) 1985-08-01
ES279898Y (es) 1986-04-16
DK170082A (da) 1982-11-19
US4495744A (en) 1985-01-29
NZ200627A (en) 1986-04-11
ES8405470A1 (es) 1984-06-01
AU8346882A (en) 1982-11-25
CA1179860A (fr) 1984-12-27
BR8202859A (pt) 1983-04-26
EP0065089A1 (fr) 1982-11-24

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