EP0003227B1 - Method of turning over a prefabricated element of reinforced concrete - Google Patents

Method of turning over a prefabricated element of reinforced concrete 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)
French (fr)
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EP0003227A1 (en
Inventor
Illo-Frank Dr.-Ing. Primus
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Betonbau GmbH
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Betonbau GmbH
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Publication of EP0003227A1 publication Critical patent/EP0003227A1/en
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    • 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)

Description

Die Erfindung bezieht sich auf ein Verfahren zum Wenden einer quaderförmigen, einseitig offenen Raumzelle aus Stahlbeton, nach dem Oberbegriff des Patentanspruches 1.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.

Die Herstellung derartiger Raumzellen im sogenannten Glockengussverfahren, bei welchem die einzige offene Seite der Raumzelle nach unten weist, ist bekannt. Ein derartiges Herstellungsverfahren ist besonders zweckmässig, weil die Raumzelle in einem Guss betoniert werden kann. Die Weiterbehandlung der gegossenen Raumzelle bereitet jedoch insbesondere dann Schwierigkeiten, wenn die Raumzelle anschliessend an den Betoniervorgang in eine Betriebslage gewendet werden soll, in der die offene Seite nach oben weist. Würde man mit dem Entschalen und Wenden der Raumzelle bis zur vollständigen Aushärtung warten, so benötigte man zu lange Durchlaufzeiten für die einzelne Raumzelle auf dem teuren Betonier- bzw. Hallenplatz. Ein Entschalen und Wenden der noch aus frischem Beton bestehenden, nicht voll ausgehärteten Raumzelle bringt aber die Gefahr mit sich, dass die Raumzelle Risse erhält und Verformungen erleidet.The production of such room cells in the so-called bell casting process, in which the only open side of the room cell points downwards, is known. Such a manufacturing process is particularly useful because the room cell can be concreted in one pour. However, the further treatment of the cast room cell is particularly difficult if the room cell is subsequently to be turned into an operating position after the concreting process, in which the open side points upwards. If one waited until the complete hardening of the formwork and turning the room cell, it would take too long processing times for the individual room cell on the expensive concrete or hall space. However, stripping and turning the freshly made, not fully hardened room cell entails the risk that the room cell will crack and suffer deformation.

Aus der DT-AS 2.400.390 ist bereits ein Herstellungsverfahren bekannt, bei welchem die Raumzelle auf einem Kipptisch betoniert wird, mittels dessen sie nach dem Abbinden des Betons um 90° gekippt wird, damit die Kernschalung seitlich herausgezogen werden kann. Dieses bekannte Verfahren dient dazu, hohe Hallenkonstruktionen oder tiefe Betoniergruben in der Halle zum Abziehen der Kernschalung überflüssig zu machen und Rissbildungen an der Raumzelle während des ersten Kippvorganges um 90° und des zweiten Kippvorganges um weitere 90° zu vermeiden, da der Kern die Raumzelle aus frischem Beton stützt. Wenn der Kern aus der Raumzelle herausfährt, muss die freitragende Längswand abgestützt werden. Ein wesentlicher Nachteil besteht aber darin, dass die Raumzelle zusammen mit der Kernschalung gekippt werden muss, so dass der Kipptisch für das Gesamtgewicht beider ausgelegt werden muss. Ferner besteht ein Nachteil darin, dass die Kernschalung auf den Kipptisch transportiert und dort massgenau arretiert und später wieder aus der Raumzelle heraustransportiert und zurückgekippt werden muss. Die Kippbeanspruchung des Schalungskerns beeinträchtigt aber die Massgenauigkeit der Raumzelle. Stehen hohe Fertigungshallen oder tiefe Betoniergruben in der Halle jedoch sowieso zur Verfügung, so kann entweder die Raumzelle von der Kernschalung nach oben oder die Kernschalung aus der Raumzelle nach unten weggezogen werden. Gewendet werden muss dann nur noch die von dem Gewicht der Kernschalung befreite leere Raumzelle. Dieses Verfahren hat aber den Nachteil, dass man bis zur vollständigen Aushärtung der Raumzelle warten müsste, wenn man Schäden beim Entschalen und Wenden vermeiden will.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. When the core moves out of the room cell, the unsupported longitudinal wall must be supported. A major disadvantage, however, 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. However, the tilting stress of the formwork core affects the dimensional accuracy of the room cell. However, if high production halls or deep concrete pits are available in the hall, either 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. However, 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.

Der Erfindung liegt die Aufgabe zugrunde, ein Verfahren der eingangs beschriebenen Art zu entwickeln, bei dem die Nachteile der bekannten Verfahren vermieden werden, die nicht voll ausgehärtete Raumzelle zur Weiterverarbeitung also ohne Zuhilfenahme einer für überschwere Belastungen ausgelegten Kippvorrichtung und ohne Kippbeanspruchung des Schalungskernes ohne Schaden zu nehmen in die Betriebslage gewendet werden kann, in der die offene Seite nach oben weist.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.

Diese Aufgabe wird erfindungsgemäss durch die im Hauptanspruch angegebenen Verfahrensschritte gelöst. Der Vorteil des erfindungsgemässen Verfahrens liegt darin, dass die Seitenwände der Raumzelle beim Entschalen und Wenden der Raumzelle nicht verformt werden, der Beton im wesentlichen nur auf Druck beansprucht wird und somit keine Risse erhalten kann, obwohl die Raumzelle noch nicht ausgehärtet ist. Die Kipptische müssen lediglich für das Gewicht der Raumzelle ausgelegt werden. Dennoch können in Weiterbildung der Erfindung mittels geeigneter Massnahmen, beispielsweise mittels Distanzelementen, einer Plattform oder der Heranfahrmöglichkeit des zunächst senkrechten Schenkels des zweiten Kipptisches, sämtliche Raumzellenhöhen wie auch bei dem bereits bekanntn Verfahren hergestellt werden.According to the invention, 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.

Auch hat es sich als vorteilhaft erwiesen, dass die Raumzelle nicht mit grosser Präzision so auf dem ersten Kipptisch abgesetzt werden muss, dass die eine seiner Seitenwände unmittelbar an dem senkrechten Schenkel des Kipptisches anliegt. Durch die Zwischenschaltung der verfahrbaren Plattform ist es möglich, einen eventuell verbleibenden Spalt durch Beifahren der Plattform auszugleichen.It has also proven to be advantageous that 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. By interposing the movable platform, it is possible to compensate for any remaining gap by closing the platform.

Die Erfindung wird nachfolgend anhand von in der Zeichnung dargestellten Ausführungsbeispielen näher beschrieben und erläutert.The invention is described and explained in more detail below with reference to exemplary embodiments shown in the drawing.

Es zeigen:

  • Fig. 1 Kernschalung, Bodenschalrahmen und Aussenschalung zur Herstellung einer Raumzelle in perspektivischer Ansicht;
  • Fig. 2 die mit Hilfe der Schalungen gem. Fig. 1 hergestellte Raumzelle, teilweise vom Bodenschalrahmen abgehoben;
  • Fig. 3 die Raumzelle gern. Fig. 2 an einer Spezialtraverse zum Abheben von der Kernschalung;
  • Fig. 4 die auf einem ersten Kipptisch abgesetzte Raumzelle in der Seitenansicht;
  • Fig. 5 die mittels des ersten Kipptisches auf einen zweiten Kipptisch gekippte Raumzelle;
  • Fig. 6 die an den senkrechten Schenkel des zweiten Kipptisches herangefahrene Raumzelle;
  • Fig. 7 die mittels des zweiten Kipptisches in ihre Betriebslage gekippte Raumzelle;
  • Fig. 8 eine zweite Ausführungsform des zweiten Kipptisches, bei der der senkrechte Schenkel verfahrbar ist und;
  • Fig. 9 die zu wendende Raumzelle mit einem Stützrahmen zwischen den Längswänden als Stützvorrichtung.
Show it:
  • Figure 1 core formwork, floor formwork frame and outer formwork for the production of a room cell in a perspective view.
  • Fig. 2 according to the formwork. Figure 1 manufactured room cell, partially lifted from the floor formwork frame.
  • Fig. 3 like the room cell. 2 on a special traverse for lifting off the core formwork;
  • 4 shows the room cell set down on a first tilting table in a side view;
  • 5 shows the space cell tilted by means of the first tilting table onto a second tilting table;
  • 6 shows the space cell moved up to the vertical leg of the second tilting table;
  • 7 shows the space cell tilted into its operating position by means of the second tilting table;
  • 8 shows a second embodiment of the second tilting table, in which the vertical leg is movable and;
  • Fig. 9, the room cell to be turned with a support frame between the longitudinal walls as a support device.

Zur Herstellung einer Raumzelle 10 dienen in bekannter Weise eine Kernschalung 11 und Aussenschalungswände 12, von denen der Übersichtlichkeit halber in Fig. 1 nur drei Aussenschalwände dargestellt sind. Die bewehrte Kernschalung 11 ruht auf einem Bodenschalrahmen, der aus getrennt voneinander angeordneten Längsbrettern 13 und Querbrettern 14 besteht.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.

Der Betoniervorgang der Raumzelle 10 erfolgt im sogenannten Glockengussverfahren. Die einzige offene Seite der Raumzelle 10 weist dabei nach unten, so dass die Raumzelle in einem Guss betoniert werden kann. Die aus noch frischem Beton bestehende Raumzelle 10 wird nach Entfernen der Aussenschalungswände 12 und Lösen der vier senkrechten Wände der Kernschalung 11 mittels einer hydraulischen Vorrichtung 15, die die Längsbretter 13 des Bodenschalrahmens untergreift, so angehoben, dass die Raumzelle im wesentlichen auf Druck beansprucht wird. Dabei werden die Kernschalung 11 und die Raumzelle 10 am Dekkenspiegel voneinander getrennt und die Querbretter 14 des Bodenschalrahmens gelöst. Nunmehr kann die Raumzelle 10 mittels einer Speziattraverse 16 (Fig. 3) von der Kernschalung 11 abgehoben und auf den waagerechten Schenkel 17 eines L-förmigen, um seine Längsachse kippbaren ersten Kipptisches 18 abgesetzt werden. Ein eventuell verbleibender Spalt zwischen der dem senkrechten Schenkel 19 des ersten Kipptisches 18 und der diesem Schenkel zugewandten Raumzellenlängswand wird durch eine parallel zu dem Schenkel 19 angeordnete Plattform 20 überbrückt, die hydraulisch an die Raumzellenlängswand herangefahren wird. Im Ausführungsbeispiel gem. Fig. 4 bis 7 ist diese Plattform 20 an einem Verschiebewagen 21 montiert, der seinerseits mittels Rollen 22 an dem Schenkel 19 befestigt ist und an diesem abrollen kann.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. After the outer formwork walls 12 have been removed and the four vertical walls of the core formwork 11 have been removed, 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. 3) and placed on the horizontal leg 17 of an L-shaped first tilting table 18 which can be tilted about its longitudinal axis. A possibly remaining gap between the vertical leg 19 of the first tilting table 18 and the longitudinal wall of the room cell facing this leg is bridged by a platform 20 arranged parallel to the leg 19, which is hydraulically moved to the longitudinal wall of the room cell. In the embodiment according to 4 to 7, this platform 20 is mounted on a sliding carriage 21, which in turn is fastened to the leg 19 by means of rollers 22 and can roll on this.

Bevor die Raumzelle 10 mittels des ersten Kipptisches 18 gekippt wird, wird gegen die Innenwand der dem Schenkel 19 abgewandten Raumzellenlängswand ein Stützträger 23 angelehnt, der gelenkig an dem Verschiebewagen 21 befestigt ist und beim Kippen der Raumzelle die Abstützung der Raumzellenlängswand übernimmt.Before the space cell 10 is tilted by means of the first tilting table 18, 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.

Der erste Kipptisch 18 wird sodann um 90° gekippt, so dass der ursprünglich senkrecht stehende Schenkel 19 kammförmig in den waagerechten Schenkel 24 eines zweiten L-förmigen Kipptisches 25 eingreift und der Verschiebewagen 21 mit seinen Rollen 22 auf den Gabelträgern dieses waagerechten Schenkels 24 aufsetzt (Fig. 5). Mit Hilfe des Verschiebewagens 21 wird die Raumzelle 10 nunmehr an den senkrechten Schenkel 26 des zweiten Kipptisches 25 herangefahren (Fig. 6). Nunmehr kann die Raumzelle 10 auf dem zweiten Kipptisch 25 ebenfalls um 90° gekippt werden, so dass der Boden der Raumzelle nach unten weist. Nach Herausschwenken des Stützträgers 23 aus der Raumzelle 10 kann diese mittels einer Traverse 27 vom zweiten Kipptisch 25 abgehoben und zur weiteren Verarbeitung transportiert werden (Fig. 7).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). With the help of the sliding carriage 21, the room cell 10 is now moved up to the vertical leg 26 of the second tilting table 25 (FIG. 6). Now 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. After 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).

Der Abstand zwischen der Raumzelle 10 und den senkrechten Schenkeln 19 bzw. 26 des ersten bzw. zweiten Kipptisches 18 bzw. 25 kann auch durch Distanzelemente überbrückt werden, die zweckmässigerweise in die senkrechten Schenkel eingebaut sind und die vorzugsweise je eine Plattform aufweisen, deren Ebene parallel zur Schenkelebene verläuft und die in Richtung ihrer Normale bis zu Anlage an die Raumzelle 10 hydraulisch verfahren werden können. Eine weniger elegante, dafür aber billigere Lösung besteht in der Verwendung von Distanzelementen aus aufblasbaren, zerreissfesten Gummi- oder Kunststoffkissen, die zwischen die betreffende Raumzellenwand und den senkrechten Schenkel gesteckt werden.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. A less elegant, but cheaper solution is the use of spacers made of inflatable, tear-resistant rubber or plastic pillows, which are inserted between the relevant cell wall and the vertical leg.

Die Plattform 20 kann auch ohne Zwischenschaltung eines Verschiebewagens 21 direkt an dem senkrechten Schenkel 19 bzw. 26 befestigt werden. In diesem Fall ist es zweckmässig, wenn die Gabelträger des waagerechten Schenkels 24 des zweiten Kipptisches 25, auf denen die Plattform 20 dann beim Kippen aufsetzt, Gleitrollen oder -kufen aufweisen, auf denen die Plattform mitsamt der Raumzelle 10 bis zur Anlage an den senkrechten Schenkel 26 des zweiten Kipptisches 25 verschoben werden kann.The platform 20 can also be attached directly to the vertical leg 19 or 26 without the interposition of a transfer carriage 21. In this case, it is expedient if 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.

Eine weitere Möglichkeit, einen eventuellen Abstand zwischen der Raumzelle 10 und den senkrechten Schenkeln 19 bzw. 26 zu überbrücken besteht darin, dass die senkrechten Schenkel selbst in Richtung ihrer Normale bis zu Anlage an der Raumzelle 10 verfahren werden. Eine Anordnung, bei der der senkrechte Schenkel 26 des zweiten Kipptisches 25 auf diese Weise verfahrbar ist, zeigt Fig. 8.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.

Der Stützträger 23 zur Abstützung der Raumzellenlängswand während des Kippens stellt nur eine Möglichkeit der vielen denkbaren Stützvorrichtungen dar. Um ihn ohne Beschädigungsgefahr an die Raumzellenlängswand heranfahren zu können, weist der Stützträger 23 einen in der Zeichnung nicht dargestellten Grenztaster auf, der die Anlage an der Innenwand anzeigt. Eine weitere Möglichkeit der Abstützung ist in Fig. 9 dargestellt. Hier besteht die Stützvorrichtung aus einem Stützrahmen 28, der auf einem Teil der Länge oder der Gesamtlänge zwischen die beiden Raumzellenlängswände geschoben wird. Dies erfolgt zweckmässigerweise dann, wenn die Raumzelle 10 mit Hilfe der Spezialtraverse 16 von der Kernschalung 11 abgehoben, aber noch nicht auf dem ersten Kipptisch 18 abgesetzt ist.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. In order to be able to drive it to the longitudinal wall of the room without risk of damage, 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. Here, 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.

Obwohl die Erfindung anhand der Herstellung einer Raumzelle erklärt ist, kann sie bei der Herstellung beliebiger einseitig offener Fertigteile aus Stahlbeton mit einem Boden und vier im wesentlichen lotrechten Seitenwänden erfolgreich eingesetzt werden. Die im Ausführungsbeispiel in die hydraulische Vorrichtung 15 und die Spezialtraverse 16 aufgeteilte Hubvorrichtung kann in einer einheitlichen Hubvorrichtung zusammengefasst werden, solange garantiert bleibt, dass das Fertigteil beim Anheben durch die Hubvorrichtung in allen Arbeitsphasen im wesentlichen auf Druck beansprucht wird. Um die Angriffsmöglichkeiten für die Hubvorrichtung zu erleichtern, ist es zweckmässig, in den Ecken der Fertigteile Transportanker 29 vorzusehen. Dies ermöglicht, die Druckkräfte beim Anheben des Fertigteiles optimal in den noch frischen Beton einzuleiten und in ihm zu verteilen.Although the invention is explained on the basis of the production of a room cell, it can be successfully used in the production of any prefabricated parts made of reinforced concrete that are open on one side and have a floor and four essentially vertical side walls. 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. In order to facilitate the attack options for the lifting device, it is expedient to provide transport anchors 29 in the corners of the finished parts. This enables the pressure forces when lifting the finished part to be optimal discharge fresh concrete and distribute it in it.

Claims (6)

1. A method of turning a parallelepipedal three-dimensional box-element, open at one side and made of reinforced concrete, having a base and four essentially vertical lateral walls, which, when using an outer shuttering a base shuttering frame and a parallelepipedal core shuttering with five shuttering walls, with the base upwards, is concreted in one casting and subsequently is tilted, by means of two L-shaped tilting tables, against whose vertical sides the three-dimensional box-element is made to rest without gaps, into the position in which the base of the three-dimensional box-element is directed downwards, characterized in that, after removing the outer shuttering (12) and detaching the four vertical walls of the core shuttering (11) by means of a cross-bar (16), which engages on anchoring devices (29), encased in concrete in the corners of the three-dimensional box-element, the three-dimensional box-element (10) consisting of concrete, which is still green, is raised until the top shuttering and the base shuttering frame (13, 14) of the core shuttering (11) and the three-dimensional box-element (10) become detached from each other and the three-dimensional box-element can be set down onto the first tilting table (18), on whose vertical side (19) a platform (20) is disposed parallel to the latter, which platform is moved, preferably hydraulically in the direction of its normal on the longitudinal wall of the three-dimensional box-element in order to bridge the gap, and in that a support apparatus (23, 28) bears against the inner surface of the longitudinal wall of the three-dimensional box-element facing away from the vertical side and is removed after the three-dimensional box-element is tilted.
2. A method according to claim 1, characterized in that, after tilting the first tilting table (18), the platform (20) is moved on the horizontal side (24) of the second tilting table (25) until the three-dimensional box-element (10) comes to rest against the vertical side (26) thererof.
3. A method according to claim 2, characterized in that the platform (20) has rollers (22) or sliding skids, which, after the platform has been lowered, rest on the fork carriers of the horizontal side (24) of the second tilting table (25).
4. A method according to claim 2, characterized in that the fork carriers of the horizontal side (24) of the second tilting table (25) have rollers, on which the three-dimensional box-element (10) is moved.
5. A method according to claim 1, characterized in that a platform, which is moved, preverably hydraulically, in the direction of its normal until it comes to rest against the three-dimensional box-element (10), is disposed on the vertical side (26) of the second tilting table (25) likewise parallel to the latter.
6. A method according to claim 1 or 5, characterized in that the vertical side (19 or 26) of the first and/or second tilting table (18 or 25) is moved preferably hydraulically, in the direction of its normal until it comes to rest against the three-dimensional box-element (10).
EP19780101689 1977-12-19 1978-12-15 Method of turning over a prefabricated element of reinforced concrete Expired EP0003227B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE2756596 1977-12-19
DE19772756596 DE2756596C2 (en) 1977-12-19 1977-12-19 Method for producing a prefabricated part from reinforced concrete, in particular a room cell, and device for carrying out the method

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EP0003227A1 EP0003227A1 (en) 1979-08-08
EP0003227B1 true EP0003227B1 (en) 1984-05-30

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EP19780101689 Expired EP0003227B1 (en) 1977-12-19 1978-12-15 Method of turning over a prefabricated element of reinforced concrete

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

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1976152U (en) * 1967-08-31 1967-12-28 Josef Burkhart TURNING DEVICE FOR PRECAST CONCRETE PRODUCTS.
DE2111650B2 (en) * 1971-03-11 1974-09-12 Allgemeine Strassenbaubedarfs-Gesellschaft Mbh, 2820 Bremen Device for the serial production of single-sided open room cells made of concrete, in particular prefabricated garages
DE2400390B2 (en) * 1974-01-05 1977-02-24 B28B "7-08 METHOD FOR PRODUCING A ROOM FROM REINFORCED CONCRETE AND DEVICE FOR CARRYING OUT THE METHOD

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EP0003227A1 (en) 1979-08-08
DE2756596A1 (en) 1979-06-21
DE2756596C2 (en) 1983-04-07
AT358453B (en) 1980-09-10
ATA900478A (en) 1980-01-15

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