EP0003227B1 - Procédé pour tourner un élément préfabriqué en béton armé - Google Patents

Procédé pour tourner un élément préfabriqué en béton armé Download PDF

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Publication number
EP0003227B1
EP0003227B1 EP19780101689 EP78101689A EP0003227B1 EP 0003227 B1 EP0003227 B1 EP 0003227B1 EP 19780101689 EP19780101689 EP 19780101689 EP 78101689 A EP78101689 A EP 78101689A EP 0003227 B1 EP0003227 B1 EP 0003227B1
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EP
European Patent Office
Prior art keywords
dimensional box
shuttering
tilting table
platform
tilting
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
EP19780101689
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German (de)
English (en)
Other versions
EP0003227A1 (fr
Inventor
Illo-Frank Dr.-Ing. Primus
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.)
Betonbau GmbH
Original Assignee
Betonbau GmbH
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Filing date
Publication date
Application filed by Betonbau GmbH filed Critical Betonbau GmbH
Publication of EP0003227A1 publication Critical patent/EP0003227A1/fr
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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B28—WORKING CEMENT, CLAY, OR STONE
    • B28B—SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
    • B28B7/00—Moulds; Cores; Mandrels
    • B28B7/22—Moulds for making units for prefabricated buildings, i.e. units each comprising an important section of at least two limiting planes of a room or space, e.g. cells; Moulds for making prefabricated stair units

Definitions

  • the invention relates to a method for turning a cuboid-shaped, one-sided open space cell made of reinforced concrete, according to the preamble of claim 1.
  • a manufacturing process is already known from DT-AS 2.400.390, in which the room cell is concreted on a tilting table, by means of which it is tilted by 90 ° after the concrete has set, so that the core formwork can be pulled out to the side.
  • This known method serves to make high hall constructions or deep concrete pits in the hall for removing the core formwork superfluous and to avoid cracks on the room cell during the first tilting process by 90 ° and the second tilting process by another 90 °, since the core of the room cell supports fresh concrete.
  • the core moves out of the room cell, the unsupported longitudinal wall must be supported.
  • a major disadvantage is that the room cell must be tilted together with the core formwork, so that the tilting table must be designed for the total weight of both.
  • Another disadvantage is that the core formwork has to be transported to the tilting table and locked there with exact dimensions and later transported out of the room cell and tipped back.
  • the tilting stress of the formwork core affects the dimensional accuracy of the room cell.
  • the room cell can be pulled up from the core formwork or the core formwork can be pulled down from the room cell. All that then has to be turned is the empty room cell that has been freed from the weight of the core formwork.
  • this method has the disadvantage that you have to wait until the room cell has fully hardened if you want to avoid damage when stripping and turning.
  • the invention has for its object to develop a method of the type described above, in which the disadvantages of the known methods are avoided, the not fully hardened room cell for further processing without the aid of a tilting device designed for heavy loads and without tipping the formwork core without damage take into the operating position with the open side facing up.
  • this object is achieved by the method steps specified in the main claim.
  • the advantage of the method according to the invention is that the side walls of the room cell are not deformed when the room cell is stripped and turned, the concrete is essentially only subjected to pressure and therefore cannot crack, although the room cell has not yet hardened.
  • the tilting tables only have to be designed for the weight of the room cell. Nevertheless, in a further development of the invention, by means of suitable measures, for example by means of spacer elements, a platform or the possibility of moving up the initially vertical leg of the second tilting table, all the cell heights can be produced as in the already known method.
  • the room cell does not have to be placed on the first tilting table with great precision so that one of its side walls lies directly against the vertical leg of the tilting table.
  • a core formwork 11 and outer formwork walls 12 are used to produce a room cell 10 in a known manner, of which only three outer formwork walls are shown in FIG. 1 for the sake of clarity de are shown.
  • the reinforced core formwork 11 rests on a floor formwork frame which consists of longitudinal boards 13 and transverse boards 14 arranged separately from one another.
  • the concreting process of the room cell 10 takes place in the so-called bell casting process.
  • the only open side of the room cell 10 points downwards, so that the room cell can be concreted in one pour.
  • the room cell 10 which is still made of fresh concrete, is raised by means of a hydraulic device 15 which engages under the longitudinal boards 13 of the floor formwork frame in such a way that the room cell is essentially subjected to pressure.
  • the core formwork 11 and the room cell 10 are separated from each other on the ceiling mirror and the cross boards 14 of the floor formwork frame are released.
  • the space cell 10 can now be lifted off the core formwork 11 by means of a special traverse 16 (FIG.
  • a support beam 23 is leaned against the inner wall of the space cell longitudinal wall facing away from the leg 19, which is articulated to the sliding carriage 21 and takes over the support of the space cell longitudinal wall when the space cell is tilted.
  • the first tilting table 18 is then tilted by 90 °, so that the originally vertical leg 19 engages like a comb in the horizontal leg 24 of a second L-shaped tilting table 25 and the sliding carriage 21 with its rollers 22 rests on the fork carriers of this horizontal leg 24 ( Fig. 5).
  • the room cell 10 is now moved up to the vertical leg 26 of the second tilting table 25 (FIG. 6).
  • the room cell 10 on the second tilting table 25 can also be tilted by 90 °, so that the bottom of the room cell points downward.
  • the support beam 23 has been pivoted out of the room cell 10, it can be lifted from the second tilting table 25 by means of a cross member 27 and transported for further processing (FIG. 7).
  • the distance between the room cell 10 and the vertical legs 19 or 26 of the first or second tilting table 18 or 25 can also be bridged by spacer elements which are expediently installed in the vertical legs and which preferably each have a platform, the plane of which is parallel runs to the leg plane and which can be moved hydraulically in the direction of their normal up to contact with the room cell 10.
  • spacer elements made of inflatable, tear-resistant rubber or plastic pillows, which are inserted between the relevant cell wall and the vertical leg.
  • the platform 20 can also be attached directly to the vertical leg 19 or 26 without the interposition of a transfer carriage 21.
  • the fork supports of the horizontal leg 24 of the second tilting table 25, on which the platform 20 then sits when tilting have sliding rollers or runners on which the platform together with the room cell 10 until it rests against the vertical leg 26 of the second tilting table 25 can be moved.
  • a further possibility of bridging a possible distance between the room cell 10 and the vertical legs 19 or 26 is that the vertical legs themselves are moved in the direction of their normal up to contact with the room cell 10.
  • An arrangement in which the vertical leg 26 of the second tilting table 25 can be moved in this way is shown in FIG. 8.
  • the support beam 23 for supporting the longitudinal wall of the room cell during tilting represents only one possibility of the many conceivable support devices.
  • the support beam 23 has a limit switch, not shown in the drawing, which contacts the system on the inner wall displays.
  • Another possibility of support is shown in Fig. 9.
  • the support device consists of a support frame 28 which is pushed over part of the length or the entire length between the two longitudinal walls of the room cells. This expediently takes place when the room cell 10 is lifted off the core formwork 11 with the aid of the special traverse 16, but is not yet set down on the first tilting table 18.
  • the lifting device divided into the hydraulic device 15 and the special traverse 16 in the exemplary embodiment can be combined in a uniform lifting device, as long as it is guaranteed that the finished part is stressed by the lifting device in all working phases essentially under pressure.

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  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Chemical & Material Sciences (AREA)
  • Ceramic Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Moulds, Cores, Or Mandrels (AREA)

Claims (6)

1. Procédé pour retourner une cellule creuse parallèlépipédique en béton armé, ouverte d'un côté, munie d'un fond et de quatre parois latérales sensiblement verticales, qui est bétonnée en une seule coulée, par l'utilisation d'un coffrage externe, d'un châssis de coffrage de fond et d'un coffrage interne parallèlépipédique à cinq parois de coffrage, le fond étant orienté vers le haut, ladite cellule étant ensuite basculée, au moyen de deux tables basculantes en forme de L sur les ailes verticales desquelles la cellule peut venir s'appliquer sans laisser d'espace libre, dans une position telle que le fond de la cellule soit orienté vers le bas, caractérisé par le fait que la cellule (10) en béton encore frais, après élimination du coffrage externe (12) et desserrage des quatre parois verticales du coffrage interne (11) est soulevée au moyen d'une traverse (16) qui s'accroche sur des ancrages (29) noyés dans le béton aux coins des cellules, jusqu'à ce que le coffrage de plafond et le châssis de coffrage de fond (13, 14) du coffrage interne (11) se détachent de la cellule (10) et que la cellule puisse être posée sur la première table basculante (18), sur l'aile verticale (19) de laquelle est disposée, parallèlement à celle-ci, une plate-forme (20) qui est déplaçable, de préférence hydrauliquement, en vue de la compensation de la fente dans la direction de sa normale, vers la paroi longitudinale de la cellule, et par le fait que contre la surface interne de la paroi longitudinale de la cellule, opposée à ladite aile verticale on applique un dispositif de support (23, 28) que l'on enlève après le basculement de la cellule.
2. Procédé selon la revendication 1, caractérisé par le fait que la plate-forme (20) est déplacée, après basculement de la première table basculante (18), sur l'aile horizontale (24) de la deuxième table basculante (25), jusqu'à l'application de la cellule (10) contre l'aile verticale (26) de ladite deuxième table.
3. Procédé selon la revendication 2, caractérisé par le fait que la plate-forme (20) présente des rouleaux (22) ou des patins, qui se posent, après abaissement de la plate-forme, sur les longerons en fourche de l'aile horizontale (24) de la deuxième table basculante (25).
4. Procédé selon la revendication 2, caractérisé par le fait que les longerons en fourche de l'aile horizontale (24) de la deuxième table basculante (25) sont munis de rouleaux sur lesquels la cellule est déplacée.
5. Procédé selon la revendication 1, caractérisé par le fait que sur l'aile verticale (26) de la deuxième table basculante (25) est disposée, également parallèlement à cette aile, une plate-forme déplaçable de préférence hydrauliquement en direction de sa normale jusqu'à venir s'appliquer contre la cellule (10).
6. Procédé selon la revendication 1 ou 5, caractérisé par le fait que l'aile verticale (19 ou 26) de la première et/ou de la deuxième table basculante (18 ou 26) est déplaçable, en direction de sa normale, jusqu'à application contre la cellule (10), de préférence hydrauliquement.
EP19780101689 1977-12-19 1978-12-15 Procédé pour tourner un élément préfabriqué en béton armé Expired EP0003227B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE2756596 1977-12-19
DE19772756596 DE2756596C2 (de) 1977-12-19 1977-12-19 Verfahren zur Herstellung eines Fertigteiles aus Stahlbeton, insbesondere einer Raumzelle, und Vorrichtung zur Durchführung des Verfahrens

Publications (2)

Publication Number Publication Date
EP0003227A1 EP0003227A1 (fr) 1979-08-08
EP0003227B1 true EP0003227B1 (fr) 1984-05-30

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Family Applications (1)

Application Number Title Priority Date Filing Date
EP19780101689 Expired EP0003227B1 (fr) 1977-12-19 1978-12-15 Procédé pour tourner un élément préfabriqué en béton armé

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EP (1) EP0003227B1 (fr)
AT (1) AT358453B (fr)
DE (1) DE2756596C2 (fr)

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1976152U (de) * 1967-08-31 1967-12-28 Josef Burkhart Wendevorrichtung fuer spannbetonerzeugnisse.
DE2111650B2 (de) * 1971-03-11 1974-09-12 Allgemeine Strassenbaubedarfs-Gesellschaft Mbh, 2820 Bremen Vorrichtung zur serienmäßigen Herstellung von einseitig offenen Raumzellen aus Beton, insbesondere von Fertiggaragen
DE2400390B2 (de) * 1974-01-05 1977-02-24 B28B "7-08 Verfahren zur herstellung einer raumzelle aus stahlbeton und vorrichtung zur durchfuehrung des verfahrens

Also Published As

Publication number Publication date
EP0003227A1 (fr) 1979-08-08
DE2756596A1 (de) 1979-06-21
DE2756596C2 (de) 1983-04-07
AT358453B (de) 1980-09-10
ATA900478A (de) 1980-01-15

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