EP0397893B1 - Shuttering for concrete elements with various dimensions - Google Patents

Shuttering for concrete elements with various dimensions Download PDF

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Publication number
EP0397893B1
EP0397893B1 EP89108460A EP89108460A EP0397893B1 EP 0397893 B1 EP0397893 B1 EP 0397893B1 EP 89108460 A EP89108460 A EP 89108460A EP 89108460 A EP89108460 A EP 89108460A EP 0397893 B1 EP0397893 B1 EP 0397893B1
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EP
European Patent Office
Prior art keywords
frame
top frame
limb
shuttering
upper frame
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 - Lifetime
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EP89108460A
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German (de)
French (fr)
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EP0397893A1 (en
Inventor
Dittmar Dipl.-Ing. Ruffer
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Individual
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Individual
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Priority to EP89108460A priority Critical patent/EP0397893B1/en
Priority to DE89108460T priority patent/DE58907003D1/en
Priority to AT89108460T priority patent/ATE101552T1/en
Publication of EP0397893A1 publication Critical patent/EP0397893A1/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
    • B28B7/08—Moulds provided with means for tilting or inverting
    • B28B7/085—Moulds provided with means for tilting or inverting for making double wall panels
    • 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
    • B28B7/02—Moulds with adjustable parts specially for modifying at will the dimensions or form of the moulded article

Definitions

  • the invention relates to a formwork frame for the production of double-walled plates made of cast material, such as e.g. Concrete, with a lower frame and a matching upper frame, which are connected to each other by open joint parts, the upper frame being foldable onto the lower frame.
  • Formwork frames for the production of concrete slabs have become known in various designs. Short production times and quick adaptability to panels of different sizes or thicknesses are particularly important.
  • US-A-1,939,007 shows a formwork frame with a lower running rail which has a wide running surface and with an upper running rail which is arranged adjustable with respect to the lower running rail and whose running surface is stepped in relation to the running surface of the lower running rail. With such a construction, it is adaptable to different plate dimensions.
  • DE-A-2 250 686 shows a heatable production table for the production of concrete elements, in particular slabs, with a supporting structure consisting of longitudinal and cross members and a formwork sheet held thereon, on which molding wheels can be placed.
  • the hardening of the concrete is accelerated by specially arranged infrared emitters.
  • DE-A-1 584 397 shows a system for the flexible formation of formwork frames on metal tables, the walls consisting of metal profiles.
  • the system uses several tables and a drilling template with appropriate training and hole pattern arrangement in connection with fastening bolts.
  • FR-A-1.283.329 shows a formwork frame with adjustable crossbeams and frame parts as well as a hot water pipe arrangement to accelerate the hardening of the concrete.
  • the object of the present invention is to further develop the known formwork frames in such a way that the hardened plate in the upper frame is held securely in place when and after the upper frame is folded, preferably with concrete slabs of different thicknesses being poured into the upper frame can be.
  • the new frame also makes it possible to manufacture hollow concrete slabs with larger dimensions than was previously possible.
  • trapezoidal profiles running parallel to the frame sides can be fastened to the load on the upper frame to accommodate the load of the hardened component, in that a trapezoidal profile is fastened to an inside of the upper frame and engages with an edge thereof Base is supported on a ramp attached to the inside of the upper frame, the base of the trapezoid protruding beyond the plane spanned by the upper frame and bolted to the end face of a leg of an L-shaped part, which engages around the upper frame from the outside and with it second leg is wedged on a ramp provided on the outside of the upper frame in order to provide a pull and a holding force for the trapezoidal profile on the upper frame that is angled relative to the plane of the frame.
  • the above-mentioned object can also be achieved in that pipes running parallel to the upper frame sides for receiving the load of the hardened component can be fastened to the upper frame and along parallel, opposite outer sides of the upper frame, L-shaped rails with a horizontal horizontal leg attached to the frame and one free vertical legs are provided, with clamps being slidably arranged in the longitudinal direction on the L-profiles and having an L-shaped recess in which the L-profile rail can be accommodated with free space, wherein in a free space parallel to the horizontal leg of the L- Profile, a pipe end is receivable, while a wedge can be driven into a free space on the end face of the vertical L-leg.
  • the upper frame can be folded relatively slowly onto the lower frame with appropriate aids without fear that the cast concrete slab will come loose from the upper frame, since it is held securely on the upper frame by the trapezoidal profiles and / or the pipes becomes.
  • an exact positioning of the part cast in the upper frame relative to the part cast in the lower frame is also possible.
  • the distance between the concrete part of the upper frame and that of the subframe can be maintained and maintained until the concrete in the subframe has hardened, so that the reinforcement cast in both slabs holds the two slabs together and as a finished cavity wall part of its final use can be supplied.
  • the plate cast in this way a certain profile via these holding parts, especially on one or more outer edges with the aid of the trapezoidal profiles to be used according to the invention.
  • the thickness of the concrete slabs to be cast can also be set at the edge.
  • FIG. 1 to 11 show schematically the individual components of the formwork frame according to the invention and the folding of the frame parts and the spacer.
  • Figures 1 and 2 show a formwork frame in the opened state, which lies horizontally on a formwork table, not shown.
  • the upper frame 1 is shown in FIG. This consists of a closed frame 1, which can be subdivided according to the grid of the holes 5 by longitudinal cross members 6.
  • the longitudinal beam is placed on the holes according to the plate dimensions. This creates cross members 7 of different lengths.
  • An insulating or other heat or insulation layer 4 is expediently applied in the upper frame, as the sketch for FIG. 1 shows.
  • FIG. 2 shows the lower frame 2 of the formwork frame, which lies next to the upper frame according to FIG. 1 at the start of the production of the panels.
  • the upper frame 1 is connected to the lower frame 2 by swivel joints 3 or by open joint parts 21, 22, 24 (see FIGS. 8, 9, 11).
  • the lower frame 2 is dimensioned so that it fits congruently on the upper frame. It also has longitudinal cross members 6 and cross members 7 corresponding to the upper frame for dividing the frame interior in accordance with the grid of the holes 5. After the concrete (or another cast material) has hardened, the upper frame according to FIG. 1 is turned onto the lower frame according to FIG. 2. A special bracket according to Figure 11 is required.
  • FIG. 3 shows a trapezoidal profile 8 which can be fastened to an inside of the upper frame 1 for receiving the load of the hardened component (the plate) and at the same time serves to limit the shape of the part to be produced.
  • a rod angle profile 9 an L-shaped part, which surrounds the upper frame from the outside, is provided.
  • the base of the trapezoid protrudes beyond the plane spanned by the upper frame and is in the upper part by means of screws 10 with the head plate on the front side of the upper leg of part 9 connected.
  • In the vertical leg of part 9 there is a recess 12 with a wedge 13 at angle alpha, which cooperates with a ramp 11 provided on the outside of the upper frame.
  • a further slope formed from a holding magnet 31 and at least one plate made of steel 32, is attached, on which the lower edge of the base of the trapezoidal profile is supported.
  • the wedge 13 clamps the trapezoidal profile 8 to this further bevel via the part 9 and thus provides a holding force.
  • the holding magnet can receive and hold a plurality of plates 32.
  • the additional steel plates 32 change the thickness of the slope of the frame 1. This ensures that a second bore 33 is connected to the screw 10 and thus the profile can be changed by a certain step c. It is thereby achieved that the component which is normally installed with a thickness d is given a greater thickness by the dimension c.
  • the dimension c is chosen so that, depending on the thickness of the plates 32, the trapezoidal profile 8 produces a tight seal with the plates 32 when displaced by the dimension c. This is guaranteed and important for the trapezoidal profile in both positions.
  • FIG. 4 shows a frontal top view of the holder according to FIG. 3, namely from the side facing away from the trapezoidal profile (not shown).
  • the L-shaped part 9 is attached with its elongated head plate by means of screws 10 to the trapezoidal profile.
  • the vertical leg of the part 9 lies by means of the wedge 13 on the ramp 11 which is fastened to the upper frame 1.
  • the part 9 has a web in the middle that strikes the profile.
  • the profile can be slotted or go completely through. Both cases ensure the centering of the trapezoidal profile by the angle alpha according to FIG. 3.
  • FIG. 5 shows an additional holder by means of a bent or welded round steel 14. This round steel is guided by two tubular sleeves 15. Between the two tubular sleeves, a compression spring 17 with a ring 16 attached to the round steel is provided. Due to the pressure exerted by this spring 17, the horizontal mandrel of the round steel 14 is pressed through an opening in the top plate 18 of the trapezoidal profile 8.
  • the process for fastening the trapezoidal profile takes place in that the vertical mandrel is knocked out of the holder with a light hammer blow and in turn penetrates through the spring 17 into the opening of the head plate 18 of the trapezoidal profile 8.
  • a U-shaped open joint part 21 is attached to the upper frame 1 (which is shown in the rotated position) by means of screws 23.
  • the open counter-joint part 24 is attached to the subframe 2 by means of screws 25 (FIG. 11).
  • the joint is secured with the aid of bolts 22.
  • the open joint parts 21 and 24 ensure that the upper frame does not always have to be connected to the lower frame, but can also be stored in another place and can accommodate cast building material.
  • the open joint also allows any spatial arrangement of the two frames by other, correspondingly dimensioned joint parts 21, 24 are attached to the frame.
  • FIG. 11 which shows the joint in the active state
  • a precise mounting in the vertical direction is achieved for the production of precisely predetermined thicknesses of the components.
  • the upper frame is centered in the horizontal direction.
  • FIG. 10 shows an alternative construction for absorbing the load of the hardened component (when rotating the upper frame) by means of tubes 29 which are attached to the upper frame 1 and run parallel to the upper frame sides. The upper frame is shown rotated.
  • L-shaped rails 28 are provided along parallel opposite outer sides of the upper frame 1, with a horizontal leg attached to the upper frame 1 and a free vertical leg of the expansions.
  • locking clips 27 are arranged so as to be displaceable in the longitudinal direction, the L-profile virtually providing a rail.
  • These brackets 27 each have an L-shaped recess in which the respective L-profile rail 28 can be received with free space.
  • the locking clips 27 can therefore be connected by the wedge 30 to the tube 29 such that the tube can absorb loads from the rotation of the upper frame.
  • a corresponding surface design of the panels to be produced can be achieved if there is a desire for certain visible surfaces.
  • the formwork according to the invention also offers the possibility of using bevels, grooves or the like on the upper and / or lower formwork frame to achieve corresponding bevels, grooves or other profiles in the region of the outer edge of the two concrete shells of the double concrete slab to be produced, and at the same time to achieve easier removal (not shown).

Abstract

The shuttering according to the invention serves to produce cast elements of various dimensions and various materials. According to Figs. 1 + 2, the shuttering according to the invention uses a top frame in which the material for casting is first poured. After hardening, the material is held by tubes (Fig. 11) and swung by a rotary movement into the bottom frame (2) in which material for casting was likewise poured beforehand. The joints according to Figs. 8 + 9 + 10 at the same time serve to centre and maintain a certain thickness of the elements. A trapezoidal profile (8) serves to define the shape of the element to be produced and is centred by a holder (9) and a fastening (12 + 13) in such a way that it is at the same time stabilized in its position with bolts (10). The area dimensions of the elements are obtained by bores of the same kind according to Figs. 1 + 2 in the frame (1 + 2) as well as in the longitudinal tie bars (6). Consequently, the cross tie bars (7) can alternatively be adjusted in the desired openings of the bores. <IMAGE>

Description

Die Erfindung bezieht sich auf einen Schalungsrahmen zur Herstellung von doppelwandigen Platten aus Gußmaterial, Wie z.B. Beton, mit einem Unterrahmen und einem hierzu passenden Oberrahmen, welche durch offene Gelenkteile miteinanderverbunden sind, wobei der Oberrahmen auf den Unterrahmen klappbar ist.The invention relates to a formwork frame for the production of double-walled plates made of cast material, such as e.g. Concrete, with a lower frame and a matching upper frame, which are connected to each other by open joint parts, the upper frame being foldable onto the lower frame.

Schalungsrahmen zur Herstellung von Betonplatten sind in manigfaltigen AUsführungen bekannt worden. Dabei kommt es insbesondere auf kurze Herstellungszeiten und schnelle Anpassungsfähigkeit an unterschiedlich große bzw. dicke Platten an. So zeigt die US-A-1,939,007 einen Schalungsrahmen mit einer unteren Laufschiene, die eine breite Lauffläche aufweist und mit einer oberen Laufschiene, die in Bezug auf die untere Laufschiene einstellbar angeordnet ist und deren Lauffläche gegenüber der Lauffläche der unteren Laufschiene abgestuft ist. Mit einer derartigen Konstruktion ist eine Anpassungsfähigkeit an unterschiedliche Plattenäbmessungen gegeben.Formwork frames for the production of concrete slabs have become known in various designs. Short production times and quick adaptability to panels of different sizes or thicknesses are particularly important. For example, US-A-1,939,007 shows a formwork frame with a lower running rail which has a wide running surface and with an upper running rail which is arranged adjustable with respect to the lower running rail and whose running surface is stepped in relation to the running surface of the lower running rail. With such a construction, it is adaptable to different plate dimensions.

Die DE-A-2 250 686 zeigt einen beheizbaren Fertigungstisch zur Herstellung von Betonelementen, insbesondere Platten, mit einem aus Längs- und Querträgern bestehenden Tragwerk und einem darauf gehaltenen Schalblech, auf das Formräder aufsetzbar sind. Durch speziell angeordnete Infrarot-Strahler wird eine Beschleunigung der Aushärtung des Betons erreicht.DE-A-2 250 686 shows a heatable production table for the production of concrete elements, in particular slabs, with a supporting structure consisting of longitudinal and cross members and a formwork sheet held thereon, on which molding wheels can be placed. The hardening of the concrete is accelerated by specially arranged infrared emitters.

Die DE-A-1 584 397 zeigt ein System zur flexiblen Bildung von Schalungsrahmen auf Metalltischen, wobei die Wände aus Metallprofilen bestehen. Das System verwendet mehrere Tische und eine Bohrschablone mit entsprechender Ausbildung und Lochmusteranordnung in Verbindung mit Befestigungsbolzen.DE-A-1 584 397 shows a system for the flexible formation of formwork frames on metal tables, the walls consisting of metal profiles. The system uses several tables and a drilling template with appropriate training and hole pattern arrangement in connection with fastening bolts.

Die FR-A-1.283.329 zeigt einen Schalungsrahmen mit einstellbaren Traversen und Rahmenteilen sowie einer Heißwasser-Rohranordnung zur Beschleunigung der Aushärtung des Betons.FR-A-1.283.329 shows a formwork frame with adjustable crossbeams and frame parts as well as a hot water pipe arrangement to accelerate the hardening of the concrete.

Schalungsrahmen zur Herstellung von doppelwandigen Betonplatten gemäß der eingangs bezeichneten Gattung sind durch die FR-A-2.139.022 und die DE-A-29 45 562 bekannt geworden.Formwork frames for the production of double-walled concrete slabs according to the type mentioned at the outset are known from FR-A-2.139.022 and DE-A-29 45 562.

Bei diesen beiden bekannten Schalungsrahmen für doppelwandige Betonplatten geht man offenbar davon aus, daß der in dem Oberrahmen ausgehärtete Beton hinreichend sicher in diesem Oberrahmen gehalten wird oder daß man andererseits das Lösen des gegossenen Wandteiles im Oberrahmen in Kauf nehmen kann, während man den Oberrahmen auf den Unterrahmen herüberklappt bzw. auch nach dem Herumklappen des Oberrahmens. Außerdem ermöglichen die bekannten Schalungsrahmen nicht ohne weiteres die Herstellung von Betonschichten unterschiedlicher Dicke im Oberrahmen.In these two known formwork frames for double-walled concrete slabs, it is apparently assumed that the hardened concrete in the upper frame is held sufficiently securely in this upper frame or that on the other hand one can accept the loosening of the cast wall part in the upper frame while the upper frame is on the Folded over the lower frame or even after folding the upper frame. In addition, the known formwork frames do not readily allow the production of concrete layers of different thicknesses in the upper frame.

Gegenüber diesem Stand der Technik liegt der vorliegenden Erfindung die Aufgabe zugrunde, die bekannten Schalungsrahmen derart weiterzuentwickeln, daß die ausgehärtete Platte im Oberrahmen beim und nach dem Herumklappen des Oberrahmens sicher an ihrem Platz gehalten wird, wobei vorzugsweise auch noch Betonplatten unterschiedlicher Dicke in den Oberrahmen gegossen werden können. Außerdem ist es mit dem neuen Rahmen möglich, auch Betonhohlplatten mit größeren Abmessungen herzustellen, als dies bisher möglich war.Compared to this prior art, the object of the present invention is to further develop the known formwork frames in such a way that the hardened plate in the upper frame is held securely in place when and after the upper frame is folded, preferably with concrete slabs of different thicknesses being poured into the upper frame can be. The new frame also makes it possible to manufacture hollow concrete slabs with larger dimensions than was previously possible.

Diese Aufgabe wird ausgehend von dem eingangs bezeichneten Schalungsrahmen gemäß der Erfindung dadurch gelöst, daß parallel zu den Rahmenseiten verlaufende Trapezprofile zur Aufnahme der Last des erhärteten Bauteiles am Oberrahmen befestigbar sind, indem ein Trapezprofil an einer Innenseite des Oberrahmens befestigt ist und sich mit einer Kante seiner Grundfläche an einer an der Innenseite des Oberrahmens angebrachten Rampe abstützt, wobei die Grundfläche des Trapezes über die von dem Oberrahmen aufgespannte Ebene hinausragt und über Bolzen mit der Stirnseite eines Schenkels eines L-förmigen Teiles verschraubt ist, welches den Oberrahmen von außen umgreift und mit seinem zweiten Schenkel an einer auf der Außenseite des Oberrahmens vorgesehenen Rampe verkeilt ist, um über den ersten Schenke einen Zug und eine gegenüber der Ebene des Rahmens abgewinkelte Haltekraft für das Trapezprofil an dem Oberrahmen bereitzustellen.This object is achieved on the basis of the formwork frame according to the invention initially described in that trapezoidal profiles running parallel to the frame sides can be fastened to the load on the upper frame to accommodate the load of the hardened component, in that a trapezoidal profile is fastened to an inside of the upper frame and engages with an edge thereof Base is supported on a ramp attached to the inside of the upper frame, the base of the trapezoid protruding beyond the plane spanned by the upper frame and bolted to the end face of a leg of an L-shaped part, which engages around the upper frame from the outside and with it second leg is wedged on a ramp provided on the outside of the upper frame in order to provide a pull and a holding force for the trapezoidal profile on the upper frame that is angled relative to the plane of the frame.

Die vorgenannte Aufgabe kann auch dadurch gelöst werden, daß parallel zu den Oberrahmenseiten verlaufende Rohre zur Aufnahme der Last des erhärteten Bauteiles am Oberrahmen befestigbar sind und entlang paralleler, gegenüberliegender Außenseiten des Oberrahmens L-Profilschienen mit einem horizontalen, an dem Rahmen befestigten horizontalen Schenkel und einem freien vertikalen Schenke vorgesehen sind, wobei auf den L-Profilen Klammern in Längsrichtung verschiebbar angeordnet sind, die eine L-förmige Aussparung aufweisen, in welcher die L-Profilschiene mit Freiraum aufnehmbar ist, wobei in einem Freiraum parallel zu dem horizontalen Schenke des L-Profils ein Rohrende aufnehmbar ist, während in einen Freiraum an der Stirnseite des vertikalen L-Schenkels ein Keil eintreibbar ist.The above-mentioned object can also be achieved in that pipes running parallel to the upper frame sides for receiving the load of the hardened component can be fastened to the upper frame and along parallel, opposite outer sides of the upper frame, L-shaped rails with a horizontal horizontal leg attached to the frame and one free vertical legs are provided, with clamps being slidably arranged in the longitudinal direction on the L-profiles and having an L-shaped recess in which the L-profile rail can be accommodated with free space, wherein in a free space parallel to the horizontal leg of the L- Profile, a pipe end is receivable, while a wedge can be driven into a free space on the end face of the vertical L-leg.

Durch die erfindungsgemäße Ausbildung des Schalungsrahmens kann man den Oberrahmen mit entsprechenden Hilfsmitteln relativ langsam auf den Unterrahmen herumklappen, ohne daß zu befürchten ist, daß sich die gegossene Betonplatte aus dem Oberrahmen löst, da sie durch die Trapezprofile und/oder die Rohre sicher am Oberrahmen gehalten wird. Auf diese Weise ist auch eine exakte Positionierung des im Oberrahmen gegossenen Teils relativ zu dem im Unterrahmen gegossenen Teiles möglich. Auch der Abstand zwischen dem Betonteil des Oberrahmens und dem des Unterrahmens kann so exakt eingehalten und so lange aufrechterhalten werden, bis auch der Beton im Unterrahmen ausgehärtet ist, so daß die in beide Platten eingegossene Bewehrung die beiden Platten zusammenhält und als fertiges Hohlwandteil seiner endgültigen Verwendung zugeführt werden kann.Due to the design of the formwork frame according to the invention, the upper frame can be folded relatively slowly onto the lower frame with appropriate aids without fear that the cast concrete slab will come loose from the upper frame, since it is held securely on the upper frame by the trapezoidal profiles and / or the pipes becomes. In this way, an exact positioning of the part cast in the upper frame relative to the part cast in the lower frame is also possible. The distance between the concrete part of the upper frame and that of the subframe can be maintained and maintained until the concrete in the subframe has hardened, so that the reinforcement cast in both slabs holds the two slabs together and as a finished cavity wall part of its final use can be supplied.

Damit kann man mühelos auch größere Betonhohlplatten herstellen als dies bisher möglich war. Außerdem ist es möglich, die Rohre so anzubringen, daß sie nicht nur oberhalb der Oberrahmenteile sondern zwischen diesen verlaufen, so daß es auch möglich ist, Platten zu gießen, die dünner sind als es der Höhe der Rahmenteile entspricht.This allows you to effortlessly produce larger hollow concrete slabs than was previously possible. It is also possible to attach the pipes so that they run not only above the upper frame parts but between them, so that it is also possible to cast plates that are thinner than the height of the frame parts.

Schließlich ist es auch möglich, der so gegossenen Platte über diese Halterungsteile ein gewisses Profil mitzugeben, vor allem an einer oder mehreren außenkanten mit Hilfe der erfindungsgemäß zu verwendenden Trapezprofile. Mit Hilfe der Trapezprofile kann außerdem die Dicke der zu gießenden Betonplatten am Rand eingestellt werden.Finally, it is also possible to give the plate cast in this way a certain profile via these holding parts, especially on one or more outer edges with the aid of the trapezoidal profiles to be used according to the invention. With the help of the trapezoidal profiles, the thickness of the concrete slabs to be cast can also be set at the edge.

Die Erfindung wird im folgenden im Rahmen der Herstellung unter anderem von doppelschaligen Decken- und Wandplatten aus einem gießenden Material z.B. Beton anhand von AUsführungsbeispielen näher erläutert, aus denen sich weitere ausgestaltende Merkmale ergeben. Die Figuren 1 bis 11 zeigen schematisch die einzelnen Bestandteile des erfindungsgemäßen Schalungsrahmens und das Aufeinanderklappen der Rahmenteile sowie die Abstandshalterung.The invention is described below in the context of the production of, inter alia, double-shell ceiling and wall panels made of a casting material, e.g. Concrete explained in more detail using exemplary embodiments, from which further design features result. Figures 1 to 11 show schematically the individual components of the formwork frame according to the invention and the folding of the frame parts and the spacer.

Dabei zeigen im einzelnen:

Figuren 1 und 2
den erfindungsgemäßen Schalungsrahmen im aufgeklappten Zustand in einer Draufsicht und einer Seitenansicht (oberer Figurenteil),
Figur 3
in einer Schnittansicht die Halterung eines Trapezprofils an der Innenseite des Oberrahmens zur Lastaufnahme,
Figur 4
eine stirnseitige Draufsicht auf die Halterung nach Figur 3 von der dem Trapezprofil abgewandten Seite aus,
Figur 5
eine Schnittansicht entsprechend Figur 3 mit einer zusätzlichen Halterung des Trapezprofiles in Form eines Rundstahles,
Figur 6
eine stirnseitige Draufsicht auf die Haltetung nach Figur 5,
Figur 7
einen Ausschnitt aus Figur 5 unter Darstellung der Rundstahl-Zusatzhalterung im gelösten Zustand,
Figur 8
ein am Oberrahmen angebrachtes offenes Gelenkteil,
Figur 9
ein am Unterrahmen angebrachtes Gelenkteil,
Figur 10
eine zum Trapezprofil nach Figur 3 alternative Lastaufnahme mittels einer Rohranordnung,
Figur 11
das Zusammenwirken der beiden Gelenkteile gemäß den Figuren 8 und 9.
The individual shows:
Figures 1 and 2
the formwork frame according to the invention in the opened state in a plan view and a side view (upper part of the figure),
Figure 3
in a sectional view the holder of a trapezoidal profile on the inside of the upper frame for load absorption,
Figure 4
3 shows an end plan view of the holder according to FIG. 3 from the side facing away from the trapezoidal profile,
Figure 5
3 shows a sectional view corresponding to FIG. 3 with an additional mounting of the trapezoidal profile in the form of a round steel,
Figure 6
3 shows a frontal top view of the holder according to FIG. 5,
Figure 7
5 shows a section from FIG. 5 showing the round steel additional holder in the released state,
Figure 8
an open joint part attached to the upper frame,
Figure 9
an articulated part attached to the subframe,
Figure 10
3 an alternative to the trapezoidal profile according to FIG. 3 by means of a pipe arrangement,
Figure 11
the interaction of the two joint parts according to FIGS. 8 and 9.

Die Figuren 1 und 2 zeigen einen Schalungsrahmen im aufgeklappten Zustand, der waagrecht auf einem nicht dargestellten Schalungstisch aufliegt. In der Figur 1 ist dabei der Oberrahmen 1 dargestellt. Dieser besteht aus einem geschlossenen Rahmen 1, der durch Längstraversen 6, beliebig entsprechend dem Raster der Bohrungen 5 unterteilt werden kann. Die Längstraverse wird entsprechend der Plattenabmessung auf die Bohrungen aufgesetzt. Dadurch entstehen Quertraversen 7 unterschiedlicher Länge.Figures 1 and 2 show a formwork frame in the opened state, which lies horizontally on a formwork table, not shown. The upper frame 1 is shown in FIG. This consists of a closed frame 1, which can be subdivided according to the grid of the holes 5 by longitudinal cross members 6. The longitudinal beam is placed on the holes according to the plate dimensions. This creates cross members 7 of different lengths.

In dem Oberrahmen ist zweckmäßig, wie die Skizze zur Figur 1 zeigt, eine isolierende oder sonstige Wärme- oder Dämmschicht 4 aufgebracht.An insulating or other heat or insulation layer 4 is expediently applied in the upper frame, as the sketch for FIG. 1 shows.

Die Figur 2 zeigt den Unterrahmen 2 des Schalungsrahmens, der bei Beginn der Herstellung der Platten neben dem Oberrahmen nach Figur 1 liegt. Der Oberrahmen 1 ist dabei durch Drehgelenke 3 bzw. durch offene Gelenkteile 21, 22, 24 (siehe Figuren 8, 9, 11) mit dem Unterrahmen 2 verbunden.FIG. 2 shows the lower frame 2 of the formwork frame, which lies next to the upper frame according to FIG. 1 at the start of the production of the panels. The upper frame 1 is connected to the lower frame 2 by swivel joints 3 or by open joint parts 21, 22, 24 (see FIGS. 8, 9, 11).

Der Unterrahmen 2 ist so bemessen, daß er deckungsgleich auf den Oberrahmen paßt. Er weist ferner entsprechend dem Oberrahmen Längstraversen 6 und Quertraversen 7 zur Unterteilung des Rahmeninneren entsprechend dem Raster der Bohrungen 5 auf. Der Oberrahmen nach Figur 1 wird nach Erhärtung des Betons (oder eines anderen gegossenen Materials) auf den Unterrahmen nach Figur 2 gedreht. Hierbei wird eine Spezialhalterung nach Figur 11 benötigt.The lower frame 2 is dimensioned so that it fits congruently on the upper frame. It also has longitudinal cross members 6 and cross members 7 corresponding to the upper frame for dividing the frame interior in accordance with the grid of the holes 5. After the concrete (or another cast material) has hardened, the upper frame according to FIG. 1 is turned onto the lower frame according to FIG. 2. A special bracket according to Figure 11 is required.

Die Figur 3 zeigt ein Trapezprofil 8, das zur Aufnahme der Last des erhärteten Bauteils (der Platte) an einer Innenseite des Oberrahmens 1 befestigbar ist und zugleich der Formbegrenzung des herzustellenden Teils dient. Zur Festhaltung des Trapezprofils 8 an dem Oberrahmen 1 ist ein Stab-Winkelprofil 9, ein L-förmiges Teil, welches den Oberrahmen von außen umgreift, vorgesehen. Die Grundfläche des Trapezes ragt über die vom Oberrahmen aufgespannte Ebene hinaus und ist im oberen Teil mittels Schrauben 10 mit der Kopfplatte auf der Stirnseite des oberen Schenkels des Teiles 9 verbunden. In dem senkrechten Schenkel des Teiles 9 befindet sich unter dem Winkel Alpha eine Ausnehmung 12 mit einem Keil 13, der mit einer an der Außenseite des Oberrahmens vorgesehenen Rampe 11 zusammenwirkt. An der Innenseite des Oberrahmens ist eine weitere Schräge (Rampe), gebildet aus einem Haltemagnet 31 und mindestens einer Platte aus Stahl 32, angebracht, an der sich die untere Kante der Grundfläche des Trapezprofiles abstützt. Der Keil 13 spannt über das Teil 9 das Trapezprofil 8 auf diese weitere Schräge und stellt somit eine Haltekraft bereit. Der Haltemagnet kann mehrere Platten 32 aufnehmen und festhalten.FIG. 3 shows a trapezoidal profile 8 which can be fastened to an inside of the upper frame 1 for receiving the load of the hardened component (the plate) and at the same time serves to limit the shape of the part to be produced. To hold the trapezoidal profile 8 on the upper frame 1, a rod angle profile 9, an L-shaped part, which surrounds the upper frame from the outside, is provided. The base of the trapezoid protrudes beyond the plane spanned by the upper frame and is in the upper part by means of screws 10 with the head plate on the front side of the upper leg of part 9 connected. In the vertical leg of part 9 there is a recess 12 with a wedge 13 at angle alpha, which cooperates with a ramp 11 provided on the outside of the upper frame. On the inside of the upper frame, a further slope (ramp), formed from a holding magnet 31 and at least one plate made of steel 32, is attached, on which the lower edge of the base of the trapezoidal profile is supported. The wedge 13 clamps the trapezoidal profile 8 to this further bevel via the part 9 and thus provides a holding force. The holding magnet can receive and hold a plurality of plates 32.

Die zusätzlichen Stahlplatten 32 verändern die Dicke der Schräge des Rahmens 1. Dadurch wird erreicht, daß eine zweite Bohrung 33 mit der Schraube 10 verbunden und somit das Profil um eine bestimmte Stufe c verändert werden kann. Dadurch wird erreicht, daß das normalerweise mit einer Dicke d eingebaute Bauteil eine um das Maß c größere Dicke erhält. Das Maß c ist so gewählt, daß in Abhängigkeit von der Dicke der Platten 32 das Trapezprofil 8 bei Verschiebungen um das Maß c einen dichten Abschluß mit den Platten 32 herstellt. Dies ist in beiden Lagen für das Trapezprofil gewährleistet und wichtig.The additional steel plates 32 change the thickness of the slope of the frame 1. This ensures that a second bore 33 is connected to the screw 10 and thus the profile can be changed by a certain step c. It is thereby achieved that the component which is normally installed with a thickness d is given a greater thickness by the dimension c. The dimension c is chosen so that, depending on the thickness of the plates 32, the trapezoidal profile 8 produces a tight seal with the plates 32 when displaced by the dimension c. This is guaranteed and important for the trapezoidal profile in both positions.

Die Figur 4 zeigt eine stirnseitige Draufsicht auf die Halterung nach Figur 3 und zwar von der dem (nicht dargestellten) Trapezprofil abgewandten Seite aus. Das L-förmige Teil 9 ist mit seiner langgestreckten Kopfplatte mittels Schrauben 10 an dem Trapezprofil befestigt. Der vertikale Schenkel des Teiles 9 liegt mittels des Keiles 13 an der Rampe 11, die am Oberrahmen 1 befestigt ist, an. Das Teil 9 besitzt in der Mitte einen Steg, der auf das Profil auftrifft. Das Profil kann geschlitzt sein oder vollständig durchgehen. Beide Fälle gewährleisten die Zentrierung des Trapezprofiles durch den winkel Alpha gemäß Figur 3.FIG. 4 shows a frontal top view of the holder according to FIG. 3, namely from the side facing away from the trapezoidal profile (not shown). The L-shaped part 9 is attached with its elongated head plate by means of screws 10 to the trapezoidal profile. The vertical leg of the part 9 lies by means of the wedge 13 on the ramp 11 which is fastened to the upper frame 1. The part 9 has a web in the middle that strikes the profile. The profile can be slotted or go completely through. Both cases ensure the centering of the trapezoidal profile by the angle alpha according to FIG. 3.

Das Trapezprofil erfährt eine Lastbeanspruchung durch die erhärteten Platten in den Rahmenteilen 1 und 2. Mitunter reicht dabei die bisher beschriebene Halterung des Trapezprofiles zur Lastaufnahme nicht aus. Die Figur 5 zeigt eine zusätzliche Halterung mittels eines abgebogenen oder verschweißten Rundstahles 14. Die Führung dieses Rundstahles erfolgt durch zwei Rohrhülsen 15. Zwischen den beiden Rohrhülsen ist eine Druckfeder 17 mit einem auf dem Rundstahl angebrachten Ring 16 vorgesehen. Durch den von dieser Feder 17 ausgeübten Druck wird der waagrechte Dorn des Rundstahles 14 durch eine Öffnung in der Kopfplatte 18 des Trapezprofiles 8 gedrückt.The trapezoidal profile is subjected to a load due to the hardened plates in the frame parts 1 and 2. Sometimes the previously described mounting of the trapezoidal profile is not sufficient for load absorption. FIG. 5 shows an additional holder by means of a bent or welded round steel 14. This round steel is guided by two tubular sleeves 15. Between the two tubular sleeves, a compression spring 17 with a ring 16 attached to the round steel is provided. Due to the pressure exerted by this spring 17, the horizontal mandrel of the round steel 14 is pressed through an opening in the top plate 18 of the trapezoidal profile 8.

Damit ist auch eine sichere Festhaltung des Trapezprofiles während der Herstellung der Platten gegeben. Das Zurückziehen des waagrechten Dornes des Rundstahles 14 aus der Öffnung in der Kopfplatte 18 erfolgt nun dadurch, daß der senkrechte Schenkel mit einem Hammer umgeschlagen wird und dabei auf ein schräg angebrachtes Blech 19 trifft (siehe auch Figur 6). Dieses Blech 19, dessen Abwicklung die Figur 7 zeigt, hat eine Ausnehmung 20. Durch die schräge Neigung zieht sich daher der horizontal liegende Dorn des Rundstahles beim Umschlagen heraus. Der senkrechte Schenkel bleibt in schräger Lage in der Ausnehmung 20 liegen (siehe auch Figur 7). Damit ist die Montage des Trapezprofiles auf einfache Weise möglich.This also ensures that the trapezoidal profile is held securely during the manufacture of the panels. The withdrawal of the horizontal mandrel of the round steel 14 from the opening in the Head plate 18 is now done by turning the vertical leg with a hammer and hitting a slanted plate 19 (see also Figure 6). This sheet 19, the development of which is shown in FIG. 7, has a recess 20. Due to the oblique inclination, the horizontal mandrel of the round steel is pulled out when it is turned over. The vertical leg remains in an inclined position in the recess 20 (see also Figure 7). This enables the trapezoidal profile to be installed in a simple manner.

Der Vorgang zur Befestigung des Trapezprofiles erfolgt dadurch, daß der senkrecht stehende Dorn aus der Halterung mit einem leichten Hammerschlag herausgeschlagen wird und durch die Feder 17 wiederum in die Öffnung der Kopfplatte 18 des Trapezprofiles 8 eindringt.The process for fastening the trapezoidal profile takes place in that the vertical mandrel is knocked out of the holder with a light hammer blow and in turn penetrates through the spring 17 into the opening of the head plate 18 of the trapezoidal profile 8.

Die gelenkige Verbindung zwischen dem Oberrahmen 1 und dem Unterrahmen 2 ist in den Figuren 8, 9 und 11 dargestellt. An dem Oberrahmen 1 (der in gedrehter Stellung dargestellt ist) ist ein U-förmiges offenes Gelenkteil 21 mittels Schrauben 23 angebracht. An dem Unterrahmen 2 ist das offene Gegengelenkteil 24 mittels Schrauben 25 angebracht (Figur 11). Unter Zuhilfenahme von Bolzen 22 wird das Gelenk gesichert. Durch die offenen Gelenkteile 21 und 24 wird erreicht, daß der Oberrahmen nicht immer mit dem Unterrahmen verbunden sein muß, sondern auch an einem anderen Platz lagern kann und gegossenen Baustoff aufnehmen kann. Das offene Gelenk erlaubt zudem eine beliebige räumliche Anordnung der beiden Rahmen, indem andere, entsprechend bemessene Gelenkteile 21, 24 an den Rahmen befestigt werden.The articulated connection between the upper frame 1 and the lower frame 2 is shown in Figures 8, 9 and 11. A U-shaped open joint part 21 is attached to the upper frame 1 (which is shown in the rotated position) by means of screws 23. The open counter-joint part 24 is attached to the subframe 2 by means of screws 25 (FIG. 11). The joint is secured with the aid of bolts 22. The open joint parts 21 and 24 ensure that the upper frame does not always have to be connected to the lower frame, but can also be stored in another place and can accommodate cast building material. The open joint also allows any spatial arrangement of the two frames by other, correspondingly dimensioned joint parts 21, 24 are attached to the frame.

Wie die Figur 11, die das Gelenk im wirksamen Zustand zeigt, erkennen läßt, wird andererseits eine präzise Halterung in senkrechter Richtung zur Herstellung präziser vorgegebener Dicken der Bauteile erreicht. Andererseits wird der Oberrahmen in horizontaler Richtung zentriert.As can be seen in FIG. 11, which shows the joint in the active state, on the other hand a precise mounting in the vertical direction is achieved for the production of precisely predetermined thicknesses of the components. On the other hand, the upper frame is centered in the horizontal direction.

Die Figur 10 zeigt eine alternative Konstruktion zur Aufnahme der Last des erhärteten Bauteiles (beim Drehen des Oberrahmens) mittels Rohre 29, die parallel zu den Oberrahmenseiten verlaufend am Oberrahmen 1 angebracht sind. Der Oberrahmen ist dabei in gedrehter Lage dargestellt.FIG. 10 shows an alternative construction for absorbing the load of the hardened component (when rotating the upper frame) by means of tubes 29 which are attached to the upper frame 1 and run parallel to the upper frame sides. The upper frame is shown rotated.

Entlang paralleler gegenüberliegender Außenseiten des Oberrahmens 1 sind L-Profilschienen 28 vorgesehen, mit einem horizontalen, an dem Oberrahmen 1 befestigten horizontalen Schenkel und einem freien vertikalen Schenkel der Ausdehnungen. Auf den L-Profilen 28 sind Verschlußklammern 27 in Längsrichtung verschiebbar angeordnet, wobei das L-Profil quasi eine Schiene vorgibt. Diese Klammern 27 weisen jeweils eine L-förmige Aussparung auf, in welcher die jeweilige L-Profilschiene 28 mit Freiraum aufnehmbar ist. In dem Freiraum b parallel zu dem horizontalen Schenkel des L-Profiles 28 ist ein Ende des Rohres 29 aufnehmbar, während in einen Freiraum an der Stirnseite des vertikalen L-Schenkels ein Keil 30 eintreibbar ist. Die Verschlußklammern 27 können daher durch den Keil 30 mit dem Rohr 29 derart verbunden werden, daß das Rohr Lasten aus der Drehung des Oberrahmens aufnehmen kann.L-shaped rails 28 are provided along parallel opposite outer sides of the upper frame 1, with a horizontal leg attached to the upper frame 1 and a free vertical leg of the expansions. On the L-profiles 28, locking clips 27 are arranged so as to be displaceable in the longitudinal direction, the L-profile virtually providing a rail. These brackets 27 each have an L-shaped recess in which the respective L-profile rail 28 can be received with free space. In the free space b parallel to that horizontal leg of the L-profile 28, one end of the tube 29 can be received, while a wedge 30 can be driven into a free space on the end face of the vertical L-leg. The locking clips 27 can therefore be connected by the wedge 30 to the tube 29 such that the tube can absorb loads from the rotation of the upper frame.

Durch Einlegen einer Profilmatte oder dergleichen in die Rahmen bzw. durch andere geeignete Profiliermaßnahmen kann eine entsprechende Oberflächengestaltung der herzustellenden Platten bei Vorliegen eines Wunsches nach bestimmten Sichtflächen erzielt werden.By inserting a profile mat or the like into the frame or using other suitable profiling measures, a corresponding surface design of the panels to be produced can be achieved if there is a desire for certain visible surfaces.

Ebenso sind andere bekannte Maßnahmen zur Erzielung von Waschbetonflächen und andere Oberflächengestaltung möglich.Other known measures to achieve washed-out concrete surfaces and other surface designs are also possible.

Die erfindungsgemäße Schalung bietet ferner die Möglichkeit, durch Abschrägungen, Nuten oder dergleichen an dem oberen und/oder unteren Schalungsrahmen entsprechende Abschrägungen, Nuten oder sonstige Profile im Bereich des Außenrandes der beiden Betonschalen der herzustellenden Doppel-Betonplatte zu erzielen und gleichzeitig eine leichtere Entschaltung zu erreichen (nicht dargestellt).The formwork according to the invention also offers the possibility of using bevels, grooves or the like on the upper and / or lower formwork frame to achieve corresponding bevels, grooves or other profiles in the region of the outer edge of the two concrete shells of the double concrete slab to be produced, and at the same time to achieve easier removal (not shown).

Claims (8)

  1. A shuttering framework for the production of double-walled panels made of cast material, e.g. concrete, having a bottom frame (2) and a top frame (1) which fits it, the bottom frame and top frame being connected together by way of open hinge members (21, 22, 24), wherein the top frame (1) can be folded onto the bottom frame (2), characterised in that trapezoidal profile members (8) which extend parallel to the sides of the top frame can be fixed to the top frame (1) in order to receive the load of the hardened structure, with one trapezoidal profile member (8) being fixed to an inner side of the top frame and bearing with one edge of its base against a ramp (31, 32) arranged on the inner side of the top frame, wherein the base of the trapeze projects beyond the plane spanned by the top frame and is screwed by means of pins (10) to the end side of a limb of an L-shaped member (9) which engages on the outside of the top frame (1) and which is wedged by way of its second limb to a ramp (11) provided on the outer side of the top frame, in order to set up a tractive force by way of the first limb and a force which is bent relative to the plane of the frame for holding the trapezoidal profile member (8) to the top frame (1).
  2. A shuttering framework for producing double-walled panels made of cast material, e.g. concrete, having a bottom frame (2) and a top frame (1) which fits it, the top frame and bottom frame being connected together by way of open hinge members (21, 22, 24), wherein the top frame (1) can be folded onto the bottom frame (2), characterised in that tubes (29) which extend parallel to the sides of the top frame can be fixed to the top frame to receive the load of the hardened structure, and L-shaped profile bars (28) are provided along parallel, oppositely disposed outer sides of the top frame (1), which L-shaped profile members have a horizontal limb fixed to the frame (1) and a free vertical limb, wherein arranged displaceably in the longitudinal direction on the L-shaped profile members are clamps (27) which have an L-shaped recess in which the L-shaped profile bar can be received with clearance, wherein a tube end can be received in a clearance parallel to the horizontal limb of the L-shaped profile member, whilst a wedge (30) can be driven into a clearance at the front of the vertical L-shaped limb.
  3. A shuttering framework according to Claim 1 or Claim 2, characterised in that arranged in the top frame (1) is an insulating heating layer or damming layer (4).
  4. A shuttering framework according to one of Claims 1 to 3, characterised in that both the top frame and bottom frame (1, 2) are able to be divided by longitudinal crosspieces and transverse crosspieces (6, 7) in accordance with the desired dimensions of the panels, wherein the extent of the division is determined by corresponding sets of holes arranged on the sides of the frame and on the crosspieces.
  5. A shuttering framework according to Claim 1 or Claim 3, 4, characterised in that an additional holding means for the trapezoidal profile member (8) is provided in the form of an angle pin (14), from which a limb is guided in tube sleeves (15) and has a ring (16) which cooperates with a compression spring (17) in such a way that the spring pushes this limb into an opening (18) in the trapezoidal profile member (8), and that arranged on the top frame (1) is a metal sheet (19) with a recess (20) into which the other limb of the angle pin can be driven for the purpose of opening the additional holding means.
  6. A shuttering framework according to one of Claims 1 to 5, characterised in that the hinge members (21, 24) are interchangeably fixed to the top frame and bottom frame (1, 2) by means of screws (23, 25).
  7. A shuttering framework according to Claim 6, characterised in that the hinge members (21, 24) are in the form of U-shaped profile members of varying opening width, such that when the two frame members (1, 2) are in the assembled condition the U-shaped profile member of the hinge member (21) of the top frame (1) is inverted over the U-shaped profile member of the hinge member (24) of the bottom frame.
  8. A shuttering framework according to Claim 1 or one of Claims 3 to 7, characterised in that the ramp arranged on the inner side of the top frame (1) consists of a holding magnet (31) and at least one inclinedly disposed steel panel (32), wherein the number of steel panels (32) determines the thickness of the panels produced.
EP89108460A 1989-05-11 1989-05-11 Shuttering for concrete elements with various dimensions Expired - Lifetime EP0397893B1 (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
EP89108460A EP0397893B1 (en) 1989-05-11 1989-05-11 Shuttering for concrete elements with various dimensions
DE89108460T DE58907003D1 (en) 1989-05-11 1989-05-11 Formwork for any cast parts.
AT89108460T ATE101552T1 (en) 1989-05-11 1989-05-11 FORMWORK FOR ANY CASTINGS.

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP89108460A EP0397893B1 (en) 1989-05-11 1989-05-11 Shuttering for concrete elements with various dimensions

Publications (2)

Publication Number Publication Date
EP0397893A1 EP0397893A1 (en) 1990-11-22
EP0397893B1 true EP0397893B1 (en) 1994-02-16

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EP89108460A Expired - Lifetime EP0397893B1 (en) 1989-05-11 1989-05-11 Shuttering for concrete elements with various dimensions

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EP (1) EP0397893B1 (en)
AT (1) ATE101552T1 (en)
DE (1) DE58907003D1 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108748628A (en) * 2018-06-04 2018-11-06 浙江交工集团股份有限公司 A kind of pedestal for the overturning of bridge prefabrication component template

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1939007A (en) * 1931-01-27 1933-12-12 John N Heltzel Adjustable concrete form
FR1283329A (en) * 1960-12-23 1962-02-02 Entpr S Balency & Schuhl Sa De Mold for the manufacture of reinforced concrete facade elements
DE1459279A1 (en) * 1961-11-18 1969-01-02 Heinrich Krog Bauunternehmung Formwork for prefabricated solid structures
DE1584397C3 (en) * 1964-07-15 1975-07-10 Van Egteren Industriele Constructiebeton Maatschappij N.V., Hasselt (Niederlande) Device for building molds, in particular for concrete elements, on a metal table
AT322193B (en) * 1971-05-25 1975-05-12 Kaiser Decken Gmbh & Co DEVICE WITH A MOLDING FOR A CONCRETE LAYER
US3765641A (en) * 1971-09-29 1973-10-16 L Tumey Adjustable form lock
DE2250686C3 (en) * 1972-10-16 1982-05-06 Nickel & Eggeling, 4600 Dortmund Heatable production table for the production of concrete elements, in particular concrete slabs
FI51913C (en) * 1976-04-21 1977-05-10 Paraisten Kalkki Oy Control device for side wall in concrete plan form.
DE2945562A1 (en) * 1979-11-10 1981-05-21 Dittmar Dipl.-Ing. 6200 Wiesbaden Ruffer Hollow slab production shuttering - has top and bottom frames folding together to form inside walls

Also Published As

Publication number Publication date
ATE101552T1 (en) 1994-03-15
EP0397893A1 (en) 1990-11-22
DE58907003D1 (en) 1994-03-24

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