EP0210239B1 - Segmented shuttering for circular constructions - Google Patents

Segmented shuttering for circular constructions Download PDF

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Publication number
EP0210239B1
EP0210239B1 EP86901056A EP86901056A EP0210239B1 EP 0210239 B1 EP0210239 B1 EP 0210239B1 EP 86901056 A EP86901056 A EP 86901056A EP 86901056 A EP86901056 A EP 86901056A EP 0210239 B1 EP0210239 B1 EP 0210239B1
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EP
European Patent Office
Prior art keywords
shuttering
formwork
members
runners
curvature
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Expired
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EP86901056A
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German (de)
French (fr)
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EP0210239A1 (en
Inventor
Otto Heinzle
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JUGO-IMPORT-EXPORT-ANSTALT
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Jugo-Import-Export-Anstalt
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    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
    • E04G11/00—Forms, shutterings, or falsework for making walls, floors, ceilings, or roofs
    • E04G11/06—Forms, shutterings, or falsework for making walls, floors, ceilings, or roofs for walls, e.g. curved end panels for wall shutterings; filler elements for wall shutterings; shutterings for vertical ducts
    • E04G11/062—Forms for curved walls
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
    • E04G11/00—Forms, shutterings, or falsework for making walls, floors, ceilings, or roofs
    • E04G11/06—Forms, shutterings, or falsework for making walls, floors, ceilings, or roofs for walls, e.g. curved end panels for wall shutterings; filler elements for wall shutterings; shutterings for vertical ducts
    • E04G11/062—Forms for curved walls
    • E04G11/065—Forms for curved walls with mechanical means to modify the curvature

Definitions

  • the invention relates to a segment formwork for circular structures, with a scaffold consisting of uprights and runners and with formwork panels attached to the scaffold at points, with straight runner sections adjoining one another in a polygonal train in a mutual angular position to form the runners and the angular position between the individual runner sections being adjustable, and wherein the formwork panels have an at least approximately continuous curvature.
  • segment formwork In the case of segment formwork (WO 84/00189), the straight sections of the runners can be adjusted in relation to one another so that the successive sections of the runner form a polygon.
  • the formwork panels are spaced from these runners, with uprights inserted between the formwork panels and the runners.
  • the formwork panels themselves are attached to these uprights.
  • the rotor and the post are offset from one another, so that the formwork panels can only come into contact with the post. It is therefore necessary to use a formwork skin that is stable in itself and can hardly be bent, or a large number of crossbars must be used to support the area of the formwork skin between the individual uprights.
  • Formwork segments of this type can be adapted to different building diameters due to the design of the runners as articulated bolts, but if the radius of curvature changes, the formwork skin must be completely separated from the uprights. Furthermore, the uprights of the inner and outer formwork would have to be realigned to each other in many cases.
  • runners are provided which are guided along the upper and lower formwork edges, these runners being adapted to the continuous curvature of the formwork panels. Wooden slats are provided for these runners, which have a series of incisions on the outer side of the curvature, so that this wooden slat can be bent accordingly.
  • a metal band is provided, and after the desired curvature has been set up, the formwork panels, the wooden runner in between and the outer metal band are screwed together, so that a stable curvature is achieved due to the multilayer structure. So that a change in the radius of curvature is possible, the bores on the outer metal band are designed as longitudinal slots in order to be able to carry out a change in the curvature in a certain area.
  • the object of the invention is to provide a segment formwork of the type mentioned for round buildings with a very large diameter, in which the radius of curvature can be changed without the formwork panels of the formlining from the scaffolding that supports them, ie. H. from runners or stanchions. This should be possible with both external and internal formwork.
  • the formwork panels are in direct contact with the framework formed by runners and uprights arranged between these runners, that the uprights are arranged at the kink points of the runners in the case of internal formwork and in the middle between the runners of the runners in the case of external formwork, and in that the formwork panels are fastened to the uprights, which have horizontal slots through which fastening screws or the like protrude.
  • the configuration of the segment formwork according to the invention considerably speeds up and facilitates the adaptation to different building diameters.
  • one embodiment of the invention provides that the uprights are arranged between the runners and with them, preferably are connected by welding.
  • the uprights come directly to both the inner formwork and the outer formwork due to the straight sections of the runners and the curvature of the formwork panels Formwork surfaces for the system.
  • the scaffold formed from the uprights and runners is rigid in itself after the rotor sections have been mutually locked at the required angle. In these uprights, they are fastened in horizontal slots using the fastening bolts.
  • the lengthwise differences in the formwork skin can be compensated for by adding or removing supplements, whereby. the allowances can be placed between the formlining or between the uprights.
  • the formwork panels are advantageously made of multi-glued wood and preferably clad with sheet metal, since such formwork panels can achieve a continuous curvature and they also have the necessary rigidity, so that they only have to rest against the runners in places.
  • the runners and uprights form a closed frame which carries several formwork panels and can be connected to a similar frame.
  • FIG. 1 different segment formwork 1 can be put together to form a large segment 2.
  • Fig. 1, 3 is an already concreted concrete section.
  • Each segment formwork 1 has a closed frame 4, which is formed by runners 5 and 6 pillars.
  • the uprights 6 are formed by uprights 6 ′, which are each arranged between two runners 5 and connected to them, preferably welded.
  • the runners 5 are formed by profile iron. In the exemplary embodiment, they are U-profiles.
  • the profile bars are provided with slots 7 at their kinks 8, the flange 9 of the profile facing the formwork not being cut.
  • tabs 10 or the like are provided at the kinks, which connect mutually adjacent sections of the flange 9' to one another.
  • the tabs 10 are provided with elongated holes, for example, through which the fastening screws 11 protrude. The course of curvature of the runners 5 can thus be adjusted simply by loosening the fastening screws 11 at the kinks, whereupon the runners 5 are bent at the kinks 8 and adapted to the desired course of curvature. Then the clamping screws 11 are tightened again.
  • the formwork panels 12 lie directly against the runners 5 and the uprights 6.
  • the runners 5 have a polygonal course, but the formwork panels 12 have a continuous curvature, so that there are free areas 13 between the runners 5 and the formwork panels 12.
  • the formwork panels 12 are made of multiply glued wood and can be clad with sheet metal on the concrete side. These formwork panels 12 can be easily bent on the one hand and, on the other hand, have sufficient rigidity and tension properties so that they are not pushed against the runner 5 by the freshly poured concrete in such a way that the formwork surface would be polygonal.
  • the uprights 6 are arranged at the kinks 8 in the internal formwork, but are only welded to one runner section 5 ′ in each case.
  • the uprights 6 of the outer formwork are arranged centrally between the kinks 8.
  • the formwork panels 12 are fastened directly to the uprights 6, namely these uprights 6 have horizontally extending elongated holes through which the fastening screws of the formwork panels 12 protrude. These fastening screws can be moved within the elongated holes, so that the formwork panels 12 do not have to be removed from the uprights 6 when the curvature of the rotor 5 changes.
  • clamping jaws 14 are held on the rotors 5 by means of clamping screws 15 and clamping jaws 16.
  • the tie rods 25 are anchored in the clamping jaws 14.
  • the tie rods 25 are screwed into nuts 26, the nut 26 being detachably attached to the clamping jaw 14 on one side, for example in the internal formwork, and thus practically forming an internal thread of the respective clamping jaw 14.
  • the insertion and screwing of the tie rods 25 can therefore be carried out from one side of the formwork.
  • the tie rods 25 are pushed through the formwork from the right in the exemplary embodiment according to FIG. 4 and screwed into the left nut 26 connected to the clamping jaw 14.
  • the right nut 26 is then screwed on.
  • the runners 5, which are each arranged on the edges of the formwork panels 12, have interlocking projections 17. This means that one formwork ring can easily be placed on top of the other, centering itself automatically. This makes climbing the formwork easier.
  • the vertical abutments 6 are formed by square tubes, but I profiles or U profiles could also be used.
  • Segment formwork according to the invention is advantageously concreted in such a way that a large segment 2 is built up, for example, in the inner formwork becomes.
  • a ring section with a height of preferably 1.5 m is set up and connected to the inner formwork by means of the tie rods 25. Before this, the reinforcement can be inserted in full.
  • the boarded section is then filled with concrete and compacted. Then a second ring section on the outer formwork can be placed on top of the previous one. This ring section is in turn connected to the inner formwork and the concreting process is repeated.
  • the ring sections are put on, the advantage of the projections 17 becomes apparent since the runners 5 and thus the formwork panels 12 of adjacent ring sections are automatically aligned with one another.
  • the adjacent runners 5 of adjacent ring sections or formwork panels 12 are advantageously connected to one another by pin-wedge connections 18.
  • segmental formwork according to the invention enables individual segmental formworks 1 to be placed very quickly against one another and thus rapid formwork climbing, so that the method described above can be used.
  • embodiment of the segment formwork according to the invention enables it to be quickly adapted to diameters of circular structures of different sizes.

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  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Mechanical Engineering (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Forms Removed On Construction Sites Or Auxiliary Members Thereof (AREA)

Abstract

In a segmented shuttering for circular constructions, a framing is comprised of uprights (6) and polygonal stretches (5) of which the corner angles may be adjusted. The shuttering panels (12) which form the shuttering surface are laid directly to the stretches (5) and present a continuous curvature. The stretches (5) are formed of profile irons.

Description

Die Erfindung bezieht sich auf eine Segmentschalung für Rundbauten, mit einem Gerüst aus Stehern und Läufern und mit punktweise am Gerüst befestigten Schalplatten, wobei gerade Läuferabschnitte in einem Polygonzug in gegenseitiger Winkellage zur Bildung der Läufer aneinander anschließen und die Winkellage zwischen den einzelnen Läuferabschnitten verstellbar ist, und wobei die Schalplatten eine zumindest annähernd kontinuierliche Krümmung aufweisen.The invention relates to a segment formwork for circular structures, with a scaffold consisting of uprights and runners and with formwork panels attached to the scaffold at points, with straight runner sections adjoining one another in a polygonal train in a mutual angular position to form the runners and the angular position between the individual runner sections being adjustable, and wherein the formwork panels have an at least approximately continuous curvature.

Insbesondere bei Rundbauten mit sehr großem Durchmsser wird nicht die gesamte Wand auf einmal geschalt, sondern es werden Wandabschnitte, sogenannte Segmente, geschalt und anschließend ausbetoniert. Nach erfolgter Betonierung eines derartigen Wandabschnittes wird die Schalung versetzt und ein angrenzender Wandabschnitt betoniert.Particularly in the case of round buildings with a very large diameter, the entire wall is not shuttered at once, but wall sections, so-called segments, are shuttered and then concreted. After concreting such a wall section, the formwork is moved and an adjacent wall section is concreted.

Bei einer Segmentschalung (WO 84/00189) sind die geraden Abschnitte der Läufer gegeneinander winkelverstellbar, so daß die aufeinanderfolgenden Läuferabschnitte einen Polygonzug bilden. Die Schalplatten sind mit Abstand von diesen Läufern angeordnet, wobei zwischen den Schalplatten und den Läufern Steher eingesetzt sind. Die Schalplatten selbst sind an diesen Stehern befestigt. Läufer und Steher liegen also in horizontaler Richtung gesehen versetzt zueinander, so daß die Schalplatten nur an den Stehern zur Anlage kommen können. Es muß daher eine in sich stabile, praktisch kaum verbiegbare Schalhaut eingesetzt werden oder es müssen eine Vielzahl von Querriegeln eingesetzt werden, die den Bereich der Schalhaut zwischen den einzelnen Stehern abstützen.In the case of segment formwork (WO 84/00189), the straight sections of the runners can be adjusted in relation to one another so that the successive sections of the runner form a polygon. The formwork panels are spaced from these runners, with uprights inserted between the formwork panels and the runners. The formwork panels themselves are attached to these uprights. As seen in the horizontal direction, the rotor and the post are offset from one another, so that the formwork panels can only come into contact with the post. It is therefore necessary to use a formwork skin that is stable in itself and can hardly be bent, or a large number of crossbars must be used to support the area of the formwork skin between the individual uprights.

Schalsegmente dieser Art können zwar aufgrund der Ausgestaltung der Läufer als Gelenkriegel verschiedenen Gebäudedurchmessern angepaßt werden, jedoch muß bei einer Änderung des Krümmungsradius die Schalhaut vollständig von den Stehern getrennt werden. Weiters müßten in vielen Fällen die Steher der Innen- und der Außenschalung zueinander neu ausgerichtet werden.Formwork segments of this type can be adapted to different building diameters due to the design of the runners as articulated bolts, but if the radius of curvature changes, the formwork skin must be completely separated from the uprights. Furthermore, the uprights of the inner and outer formwork would have to be realigned to each other in many cases.

Bei einer weiteren bekannten Ausführung (FR-A 412 798) sind Läufer vorgesehen, welche entlang des oberen und unteren Schalungsrandes geführt sind, wobei diese Läufer der kontinuierlichen Krümmung der Schalungsplatten entsprechend angepaßt sind. Für diese Läufer sind Holzleisten vorgesehen, die an der jeweils bei der Krümmung außen liegenden Seite eine Reihe von Einschnitten aufweisen, damit diese Holzleiste entsprechend gebogen werden kann. An der Außenseite, also der Schalplatte abgewandt, ist ein Metallband vorgesehen, wobei nach dem Einrichten der gewünschten Krümmung die Schalplatten, der dazwischenliegende Holzläufer und das außenliegende Metallband miteinander verschraubt werden, so daß dadurch eine stabile Krümmung durch den mehrschichtigen Aufbau erzielt wird. Damit eine Veränderung des Krümmungsradius möglich ist, sind die Bohrungen an dem äußeren Metallband als Längsschlitze ausgebildet, um dadurch in einem gewissen Bereich eine Krümmungsänderung durchführen zu können.In a further known embodiment (FR-A 412 798), runners are provided which are guided along the upper and lower formwork edges, these runners being adapted to the continuous curvature of the formwork panels. Wooden slats are provided for these runners, which have a series of incisions on the outer side of the curvature, so that this wooden slat can be bent accordingly. On the outside, i.e. facing away from the formwork panel, a metal band is provided, and after the desired curvature has been set up, the formwork panels, the wooden runner in between and the outer metal band are screwed together, so that a stable curvature is achieved due to the multilayer structure. So that a change in the radius of curvature is possible, the bores on the outer metal band are designed as longitudinal slots in order to be able to carry out a change in the curvature in a certain area.

Es erfolgt hier also eine kontinuierliche Verbindung mit geringen Abständen zwischen den Schalplatten, einem anliegenden, durchgehend gekrümmten Läufer und einem außenliegenden Metallband. Es müssen hier also eine Vielzahl von Schrauben gelöst und wieder angezogen werden, wenn eine Änderung des Durchmessers der Schalung erzielt werden soll. Bei dieser bekannten Ausführung sind auch keine Steher zwischen den Läufern angeordnet, sondern es sind lediglich an den vertikalen Seitenränden der einzelnen Schalplatten L-förmige Profile befestigt, um die Seitenränder aufeinanderfolgender Schalplatten gegenseitig verbinden zu können. Eine Abstützung der Schalplatten in horizontaler Richtung erfolgt hier also nur durch die Läufer, welche zusätzlich durch einen zweiten, mit Abstand koaxial dazu liegenden Läufer abgestützt werden müssen. Dies deshalb, weil die hier vorgesehenen, direkt an den Schalplatten anliegenden Läufer praktisch Teil der Schalplatten sind und nicht als Schalungsgerüst dienen können.So there is a continuous connection with small distances between the formwork panels, an adjacent, continuously curved runner and an external metal band. A large number of screws must therefore be loosened and tightened again if a change in the diameter of the formwork is to be achieved. In this known embodiment, no uprights are arranged between the runners, but only L-shaped profiles are attached to the vertical side edges of the individual formwork panels in order to be able to connect the side edges of successive formwork panels to one another. The formwork panels are supported in the horizontal direction here only by the runners, which must also be supported by a second runner, which is coaxially spaced therefrom. This is because the runners provided here, which lie directly against the formwork panels, are practically part of the formwork panels and cannot serve as formwork framework.

Aufgabe der Erfindung ist es, eine Segmentschalung der eingangs erwähnten Art für Rundbauten mit sehr großem Durchmesser zu schaffen, bei der Krümmungsradius geändert werden kann, ohne daß die Schalplatten der Schalhaut von dem sie tragenden Gerüst, d. h. von Läufern oder Stehern, abmontiert werden müssen. Dies soll sowohl bei einer Außen- als auch bei einer Innenschalung möglich sein.The object of the invention is to provide a segment formwork of the type mentioned for round buildings with a very large diameter, in which the radius of curvature can be changed without the formwork panels of the formlining from the scaffolding that supports them, ie. H. from runners or stanchions. This should be possible with both external and internal formwork.

Dies wird erfindungsgemäß dadurch erreicht, daß die Schalplatten unmittelbar an dem von Läufern und zwischen diesen Läufern angeordneten Stehern gebildeten Gerüst anliegen, daß die Steher bei einer Innenschalung an den Knickstellen der Läufer und bei einer Außenschalung mittig zwischen den Knickstellen der Läufer angeordnet sind, und daß die Schaltafeln an den Stehern befestigt sind, welche horizontale Schlitze aufweisen, durch die Befestigungsschrauben od. dgl. ragen.This is achieved according to the invention in that the formwork panels are in direct contact with the framework formed by runners and uprights arranged between these runners, that the uprights are arranged at the kink points of the runners in the case of internal formwork and in the middle between the runners of the runners in the case of external formwork, and in that the formwork panels are fastened to the uprights, which have horizontal slots through which fastening screws or the like protrude.

Durch die erfindungsgemäße Ausbildung der Segmentschalung wird das Anpassen an verschiedene Gebäudedurchmesser wesentlich beschleunigt und erleichtert.The configuration of the segment formwork according to the invention considerably speeds up and facilitates the adaptation to different building diameters.

Zum Unterschied von herkömmlichen Segmentschalungen, bei denen die Steher und die Läufer seitlich aneinanderanliegen, wobei im allgemeinen die Steher zwischen den Läufern und der Schalhaut angeordnet sind, ist bei einem Ausführungsbeispiel der Erfindung vorgesehen, daß die Steher zwischen den Läufern angeordnet und mit diesen, vorzugsweise durch Schweißung, verbunden sind.In contrast to conventional segment formwork, in which the uprights and the runners lie against one another laterally, the uprights generally being arranged between the runners and the formlining, one embodiment of the invention provides that the uprights are arranged between the runners and with them, preferably are connected by welding.

Die Steher kommen sowohl bei der Innenschalung als auch bei der Außenschalung jeweils infolge der geraden Abschnitte der Läufer und der Krümmung der Schalplatten direkt an den Schalungsoberflächen zur Anlage. Das aus den Stehern und Läufern gebildete Gerüst ist nach gegenseitiger Verriegelung der Läuferabschnitte in den erforderlichen Winkel in sich steif. In diesen Stehern erfolgt die Befestigung in horizontalen Schlitzen mittels der Befestigungsbolzen.The uprights come directly to both the inner formwork and the outer formwork due to the straight sections of the runners and the curvature of the formwork panels Formwork surfaces for the system. The scaffold formed from the uprights and runners is rigid in itself after the rotor sections have been mutually locked at the required angle. In these uprights, they are fastened in horizontal slots using the fastening bolts.

Die in der Länge entstehenden Differenzen bei der Schalhaut können durch Zugeben oder Herausnehmen von Zulagen ausgeglichen werden, wobei. die Zulagen zwischen der Schalhaut oder zwischen den Stehern angebracht werden können.The lengthwise differences in the formwork skin can be compensated for by adding or removing supplements, whereby. the allowances can be placed between the formlining or between the uprights.

Die Schaltafeln sind vorteilhaft aus mehrfach verleimtem Holz gefertigt und vorzugsweise mit Blech verkleidet, da mit derartigen Schaltafeln eine durchgehende Krümmung erzielt werden kann und diese auch die notwendige Steifigkeit aufweisen, so daß sie nur stellenweise an den Läufern anliegen müssen.The formwork panels are advantageously made of multi-glued wood and preferably clad with sheet metal, since such formwork panels can achieve a continuous curvature and they also have the necessary rigidity, so that they only have to rest against the runners in places.

Vorteilhaft ist weiters vorgesehen, daß die Läufer und Steher einen geschlossenen Rahmen bilden, der mehren Schalplatten trägt und mit einem gleichartigen Rahmen verbindbar ist.It is also advantageously provided that the runners and uprights form a closed frame which carries several formwork panels and can be connected to a similar frame.

Nachfolgend wird ein Ausführungsbeispiel anhand der Figuren der beiliegenden Zeichnungen eingehend beschrieben, ohne daß die Erfindung darauf eingeschränkt sein soll. Es zeigen :

  • Fig. 1 eine schematische Darstellung einer erfindungsgemäßen Segmentschalung ;
  • Fig. 2 einen Horizontalschnitt durch die Segmentschalung ;
  • Fig. 3 einen Vertikalschnitt ;
  • Fig. 4 ebenfalls einen Vertikalschnitt im Anschlußbereich zweier aufeinanderstehender Schalungsringe ;
  • Fig. 5 einen vergrößerten Ausschnitt aus der Fig. 2.
An exemplary embodiment is described in detail below with reference to the figures in the accompanying drawings, without the invention being restricted thereto. Show it :
  • Figure 1 is a schematic representation of a segment formwork according to the invention.
  • Figure 2 is a horizontal section through the segment formwork.
  • 3 shows a vertical section;
  • 4 also shows a vertical section in the connection area of two formwork rings standing one on top of the other;
  • 5 shows an enlarged detail from FIG. 2.

Wie aus Fig. 1 ersichtlich, können verschiedene Segmentschalungen 1 zu einem Großsegment 2 zusammengesetzt werden. In der Fig. 1 ist mit 3 ein bereits betonierter Betonabschnitt bezeichnet.As can be seen from FIG. 1, different segment formwork 1 can be put together to form a large segment 2. In Fig. 1, 3 is an already concreted concrete section.

Jede Segmentschalung 1 weist einen geschlossenen Rahmen 4 auf, der von Läufern 5 und Stehern 6 gebildet wird.Each segment formwork 1 has a closed frame 4, which is formed by runners 5 and 6 pillars.

Während die Läufer 5 durchgehend ausgeführt sind, werden die Steher 6 von Steherabschnitten 6' gebildet, die jeweils zwischen zwei Läufern 5 angeordnet und mit diesen verbunden, vorzugsweise verschweißt sind.While the runners 5 are continuous, the uprights 6 are formed by uprights 6 ′, which are each arranged between two runners 5 and connected to them, preferably welded.

Die Läufer 5 werden von Profileisen gebildet. Im Ausführungsbeispiel sind es U-Profile. Die Profileisen sind an ihren Knickstellen 8 mit Schlitzen 7 versehen, wobei der der Schalung zugewandte Flansch 9 des Profiles nicht geschnitten ist. Beim gegenüberliegenden Flansch 9' sind an den Knickstellen 8 Laschen 10 od. dgl. vorgesehen, die aneinander angrenzenden Abschnitte des Flansches 9' miteinander verbinden. Die Laschen 10 sind beispielsweise mit Langlöchern versehen, durch die Befestigungsschrauben 11 ragen. Der Krümmungsverlauf der Läufer 5 kann somit einfach dadurch verstellt werden, daß die Befestigungsschrauben 11 an den Knickstellen gelockert werden, worauf die Läufer 5 an den Knickstellen 8 verbogen und dem gewünschten Krümmungsverlauf angepaßt werden. Anschließend werden die Klemmschrauben 11 wieder angezogen.The runners 5 are formed by profile iron. In the exemplary embodiment, they are U-profiles. The profile bars are provided with slots 7 at their kinks 8, the flange 9 of the profile facing the formwork not being cut. In the opposite flange 9 ', 8 tabs 10 or the like are provided at the kinks, which connect mutually adjacent sections of the flange 9' to one another. The tabs 10 are provided with elongated holes, for example, through which the fastening screws 11 protrude. The course of curvature of the runners 5 can thus be adjusted simply by loosening the fastening screws 11 at the kinks, whereupon the runners 5 are bent at the kinks 8 and adapted to the desired course of curvature. Then the clamping screws 11 are tightened again.

Die Schalplatten 12 liegen, wie aus den Fig. 2. und 3 ersichtlich, unmittelbar an den Läufern 5 und an den Stehern 6 an.As can be seen from FIGS. 2 and 3, the formwork panels 12 lie directly against the runners 5 and the uprights 6.

Die Läufer 5 weisen einen polygonalen Verlauf auf, die Schalplatten 12 jedoch eine druchgehende Krümmung, so daß es jeweils zu freien Bereichen 13 zwischen den Läufern 5 und den Schalplatten 12 kommt.The runners 5 have a polygonal course, but the formwork panels 12 have a continuous curvature, so that there are free areas 13 between the runners 5 and the formwork panels 12.

Die Schalplatten 12 sind aus mehrfach verleimtem Holz gefertigt und können an der Betonseite mit Blech verkleidet sein. Diese Schalplatten 12 lassen sich einerseits leicht verbiegen und weisen andererseits ausreichende Steifigkeit und Spannungseigenschaften auf, um nicht vom frisch eingefüllten Beton so an die Läufer 5 gedrängt zu werden, daß es zu einem polygonalen Verlauf der Schalfläche käme.The formwork panels 12 are made of multiply glued wood and can be clad with sheet metal on the concrete side. These formwork panels 12 can be easily bent on the one hand and, on the other hand, have sufficient rigidity and tension properties so that they are not pushed against the runner 5 by the freshly poured concrete in such a way that the formwork surface would be polygonal.

Wie aus der Fig. 2 ersichtlich, sind die Steher 6 bei der Innenschalung an den Knickstellen 8 angeordnet, jedoch jeweils nur mit einem Läuferabschnitt 5' verschweißt. Die Steher 6 der Außenschalung sind mittig zwischen den Knickstellen 8 angeordnet. Die Schalplatten 12 sind unmittelbar an den Stehern 6 befestigt, und zwar weisen diese Steher 6 horizontal verlaufende Langlöcher auf, durch die Befestigungsschrauben der Schalplatten 12 ragen. Diese Befestigungsschrauben können innerhalb der Langlöcher verschoben werden, so daß die Schalplatten 12 bei der Veränderung der Krümmung der Läufer 5 nicht von den Stehern 6 abmontiert werden müssen.As can be seen from FIG. 2, the uprights 6 are arranged at the kinks 8 in the internal formwork, but are only welded to one runner section 5 ′ in each case. The uprights 6 of the outer formwork are arranged centrally between the kinks 8. The formwork panels 12 are fastened directly to the uprights 6, namely these uprights 6 have horizontally extending elongated holes through which the fastening screws of the formwork panels 12 protrude. These fastening screws can be moved within the elongated holes, so that the formwork panels 12 do not have to be removed from the uprights 6 when the curvature of the rotor 5 changes.

Wie aus der Fig. 4 ersichtlich ist, sind an den Läufern 5 Spannbacken 14 mittels Klemmschrauben 15 und Klemmbacken 16 gehalten. In den Spannbacken 14 sind die Durchbindestäbe 25 verankert. Die Durchbindestänbe 25 sind dabei in Muttern 26 eingeschraubt, wobei die Mutter 26 an einer Seite, beispielsweise bei der Innenschalung, an dem Spannbacken 14 lösbar befestigt sein kann und so praktisch ein Innengewinde des jeweiligen Spannbackens 14 bildet. Das Einsetzen und Verschrauben der Durchbindestäbe 25 kann daher von einer Seite der Schalung aus erfolgen. Die Durchbindestäbe 25 werden im Ausführungsbeispiel nach der Fig. 4 von rechts durch die Schalung durchgeschoben und in die linke, mit der Spannbacke 14 verbundene Mutter 26 eingeschraubt. Anschließend wird die rechte Mutter 26 aufgeschraubt. Wie aus der Fig. 3 ersichtlich ist, weisen die Läufer 5, die jeweils an den Rändern der Schalplatten 12 angeordnet sind, ineinandergreifende Vorsprünge 17 auf. Es kann somit leicht ein Schalungsring auf den anderen aufgesetzt werden, wobei er sich selbsttätig zentriert. Dies erleichtert das Klettern der Schalung.As can be seen from FIG. 4, clamping jaws 14 are held on the rotors 5 by means of clamping screws 15 and clamping jaws 16. The tie rods 25 are anchored in the clamping jaws 14. The tie rods 25 are screwed into nuts 26, the nut 26 being detachably attached to the clamping jaw 14 on one side, for example in the internal formwork, and thus practically forming an internal thread of the respective clamping jaw 14. The insertion and screwing of the tie rods 25 can therefore be carried out from one side of the formwork. The tie rods 25 are pushed through the formwork from the right in the exemplary embodiment according to FIG. 4 and screwed into the left nut 26 connected to the clamping jaw 14. The right nut 26 is then screwed on. As can be seen from FIG. 3, the runners 5, which are each arranged on the edges of the formwork panels 12, have interlocking projections 17. This means that one formwork ring can easily be placed on top of the other, centering itself automatically. This makes climbing the formwork easier.

Im Ausführungsbeispiel werden die Steherabachnitte 6' von Vierkantrohren gebildet, es könnten jedoch ebenso I-Profile oder U-Profile eingesetzt werden.In the exemplary embodiment, the vertical abutments 6 'are formed by square tubes, but I profiles or U profiles could also be used.

Mit der . erfindungsgemäßen Segmentschalung wird vorteilhaft so betoniert, daß ein Großsegment 2 beispielsweise bei der Innenschalung aufgebaut wird. Bei der Außenschalung wird ein Ringabschnitt mit einer Höhe von vorzugsweise 1,5 m aufgestellt und mit der Innenschalung mittels der Durchbindestäbe 25 verbunden. Vorher kann noch die Armierung in voller Höhe eingebracht werden.With the . Segment formwork according to the invention is advantageously concreted in such a way that a large segment 2 is built up, for example, in the inner formwork becomes. In the case of the outer formwork, a ring section with a height of preferably 1.5 m is set up and connected to the inner formwork by means of the tie rods 25. Before this, the reinforcement can be inserted in full.

Anschließend wird der verschalte Abschnitt mit Beton ausgefüllt und verdichtet. Dann kann ein zweiter Ringabschnitt an der Außenschalung auf den vorhergehenden aufgesetzt werden. Dieser Ringabschnitt wird wiederum mit der Innenschalung verbunden und der Betoniervorgang wiederholt sich. Beim Aufsetzen der Ringabschnitte zeigt sich der Vorteil der Vorsprünge 17, da die Läufer 5 und damit die Schalplatten 12 benachbarter Ringabschnitte selbsttätig zueinander ausgerichtet werden.The boarded section is then filled with concrete and compacted. Then a second ring section on the outer formwork can be placed on top of the previous one. This ring section is in turn connected to the inner formwork and the concreting process is repeated. When the ring sections are put on, the advantage of the projections 17 becomes apparent since the runners 5 and thus the formwork panels 12 of adjacent ring sections are automatically aligned with one another.

Die aneinanderliegenden Läufer 5 benachbarter Ringabschnitte bzw. Schalplatten 12 werden vorteilhaft durch Zapfen-Keilverbindungen 18 miteinander verbunden.The adjacent runners 5 of adjacent ring sections or formwork panels 12 are advantageously connected to one another by pin-wedge connections 18.

Die erfindungsgemäße Segmentschalung ermöglicht ein sehr schnelles Aneinandersetzen einzelner Segmentschalungen 1 und somit ein rasches Klettern der Schalung, so daß mit dem vorher beschriebenen Verfahren gearbeitet werden kann. Ebenso ermöglicht es die erfindungsgemäße Ausführung der Segmentschalung, diese rasch an verschieden große Durchmesser von Rundbauten anzupassen.The segmental formwork according to the invention enables individual segmental formworks 1 to be placed very quickly against one another and thus rapid formwork climbing, so that the method described above can be used. Likewise, the embodiment of the segment formwork according to the invention enables it to be quickly adapted to diameters of circular structures of different sizes.

Claims (3)

1. Segmented shuttering for circular constructions, with a framework consisting of standing members (6) and extending members (5) and with shuttering plates (12) which are fastened on the framework point-by-point, wherein straight extending-member sections (5') are coupled together in a polygonal line at mutually angular positions, for the formation of the extending members (5), and the angular position between the individual sections (5') of the extending members is adjustable, and wherein the shuttering plates (12) have a curvature which is at least approximately continuous, characterised in that the shuttering plates (12) lie directly against the framework which is formed by extending members (5) and standing members (6) arranged between these extending members (5), in that the standing members (6) are arranged in an inner shuttering at the places of curvature (8) of the extending members (5) and in an outer shuttering, are arranged in the middle between the places of curvature (8) of the extending members (5), and in that the shuttering panels (12) are fastened on the standing members (6), which have horizontal slots through which the fastening-screws, or the like, project.
2. Segmented shuttering according to Claim 1, characterised in that the shuttering panels (12) are manufactured from wood which has been glued several times, and are preferably cladded with sheet metal.
3. Segmented, shuttering according to Claim 1, characterised in that the extending members (5) and the standing members (6) form a closed frame which carries several shuttering plates (12) and is connectable with a similar frame.
EP86901056A 1985-01-24 1986-01-24 Segmented shuttering for circular constructions Expired EP0210239B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
AT0019085A AT381547B (en) 1985-01-24 1985-01-24 SEGMENT FORMWORK FOR ROUND BUILDINGS
AT190/85 1985-01-24

Publications (2)

Publication Number Publication Date
EP0210239A1 EP0210239A1 (en) 1987-02-04
EP0210239B1 true EP0210239B1 (en) 1989-10-11

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EP86901056A Expired EP0210239B1 (en) 1985-01-24 1986-01-24 Segmented shuttering for circular constructions

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US (1) US4874150A (en)
EP (1) EP0210239B1 (en)
JP (1) JPH0730623B2 (en)
AT (1) AT381547B (en)
DE (1) DE3666256D1 (en)
WO (1) WO1986004378A1 (en)

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ATA165386A (en) * 1986-06-17 1992-10-15 Rund Stahl Bau Gmbh & Co FORMWORK
US5125617A (en) * 1990-03-29 1992-06-30 Miller Alan P Adjustable radius walers for forming
AT403184B (en) * 1992-06-02 1997-11-25 Rund Stahl Bau Gmbh & Co Shuttering panel
AT403183B (en) * 1992-04-01 1997-11-25 Rund Stahl Bau Gmbh & Co Casing plate for erecting cast concrete walls - has casing skin, on rear side of which are arranged reinforcement components with rails provided at least on two opposite edges
US5953864A (en) * 1997-04-23 1999-09-21 Rapid Wall Systems Prefabricated modular concrete foundation wall systems and methods of constructing prefabricated modular concrete foundation wall systems
US6758025B2 (en) * 2001-09-19 2004-07-06 Gerhard Haberler Method of forming a swimming pool construction
US20070276526A1 (en) * 2006-05-26 2007-11-29 Thor Swanson Construction element form and method of fabricating same
US8915025B2 (en) * 2007-09-21 2014-12-23 Bombardier Transportation Gmbh Cut and rigidified construction component and method of manufacturing the same
KR101212729B1 (en) 2011-04-25 2012-12-14 유니슨이테크 주식회사 Apparatus for manufacturing curvilineal track beam for monorail in mold room
ES2404781B1 (en) * 2013-02-05 2014-05-20 Ingecid Investigación Y Desarrollo De Proyectos, S.L. Construction system and method of concrete towers, and concrete tower obtained
WO2019207345A1 (en) * 2018-04-26 2019-10-31 Alejandro Cortina Cordero Variable crosssectional formwork for buiding an annular concrete tower

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US1327481A (en) * 1919-08-12 1920-01-06 William J Kulow Concrete-chimney form
GB150988A (en) * 1919-09-11 1921-07-14 Ambursen Engineering Company Improvements in mold panel for constructing floors, walls, ceilings, and other structures
FR1011770A (en) * 1949-03-16 1952-06-26 element for the production of metal shuttering
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DE1784289A1 (en) * 1968-07-25 1971-09-23 Friedrich Dr Agr Bischof Reinforced wooden panel as concrete cladding
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Also Published As

Publication number Publication date
AT381547B (en) 1986-10-27
EP0210239A1 (en) 1987-02-04
US4874150A (en) 1989-10-17
DE3666256D1 (en) 1989-11-16
JPH0730623B2 (en) 1995-04-10
WO1986004378A1 (en) 1986-07-31
JPS62501786A (en) 1987-07-16
ATA19085A (en) 1986-03-15

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