EP0757140A1 - Shuttering for staircases - Google Patents

Shuttering for staircases Download PDF

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Publication number
EP0757140A1
EP0757140A1 EP96109708A EP96109708A EP0757140A1 EP 0757140 A1 EP0757140 A1 EP 0757140A1 EP 96109708 A EP96109708 A EP 96109708A EP 96109708 A EP96109708 A EP 96109708A EP 0757140 A1 EP0757140 A1 EP 0757140A1
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EP
European Patent Office
Prior art keywords
formwork
reinforcement
underside
stair
walls
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.)
Ceased
Application number
EP96109708A
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German (de)
French (fr)
Inventor
Willibald Fischer
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Individual
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Individual
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Publication date
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Publication of EP0757140A1 publication Critical patent/EP0757140A1/en
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    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04F—FINISHING WORK ON BUILDINGS, e.g. STAIRS, FLOORS
    • E04F11/00—Stairways, ramps, or like structures; Balustrades; Handrails
    • E04F11/02—Stairways; Layouts thereof
    • E04F11/022—Stairways; Layouts thereof characterised by the supporting structure
    • 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
    • E04G13/00—Falsework, forms, or shutterings for particular parts of buildings, e.g. stairs, steps, cornices, balconies foundations, sills
    • E04G13/06—Falsework, forms, or shutterings for particular parts of buildings, e.g. stairs, steps, cornices, balconies foundations, sills for stairs, steps, cornices, balconies, or other parts corbelled out of the wall
    • 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
    • E04G13/00—Falsework, forms, or shutterings for particular parts of buildings, e.g. stairs, steps, cornices, balconies foundations, sills
    • E04G13/06—Falsework, forms, or shutterings for particular parts of buildings, e.g. stairs, steps, cornices, balconies foundations, sills for stairs, steps, cornices, balconies, or other parts corbelled out of the wall
    • E04G13/062—Falsework, forms, or shutterings for particular parts of buildings, e.g. stairs, steps, cornices, balconies foundations, sills for stairs, steps, cornices, balconies, or other parts corbelled out of the wall for stairs or steps
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04F—FINISHING WORK ON BUILDINGS, e.g. STAIRS, FLOORS
    • E04F11/00—Stairways, ramps, or like structures; Balustrades; Handrails
    • E04F11/02—Stairways; Layouts thereof
    • E04F2011/0203—Miscellaneous features of stairways not otherwise provided for
    • E04F2011/0205—Stairways characterised by the use of specific materials for the supporting structure of the treads
    • E04F2011/021—Stairways characterised by the use of specific materials for the supporting structure of the treads mainly of stone or stone like materials, e.g. concrete; mainly of glass
    • E04F2011/0212—Stairways characterised by the use of specific materials for the supporting structure of the treads mainly of stone or stone like materials, e.g. concrete; mainly of glass mainly of concrete
    • E04F2011/0214—Stairways characterised by the use of specific materials for the supporting structure of the treads mainly of stone or stone like materials, e.g. concrete; mainly of glass mainly of concrete cast in situ

Definitions

  • the invention relates to stair formwork of the type explained in the preamble of claim 1.
  • stair formwork in concrete construction is made up of formwork boards that are removed after pouring with concrete. Building a staircase formwork from formwork boards is extremely complicated and, above all, very time-consuming.
  • a stair formwork which has a frame made of a plurality of frame struts.
  • the frame struts are hinged together so that the stair formwork on the construction site can be adjusted to any desired stair inclination.
  • the stair formwork can contain expanded metal to form the steps.
  • the underside of the stairs still has to be shut off with wood, which must subsequently be removed.
  • DE-A-1 509 351 describes a formwork in steel or metal construction for producing a single step in the form of a concrete step plate.
  • the step plate is then obviously either cantilevered into the wall via the anchors or held in place by another construction.
  • the production of an entire staircase with underside and standing step formwork walls is not described.
  • the invention has for its object to provide a stair formwork that is inexpensive to manufacture and can be easily set up and used on any construction site.
  • the stair formwork according to the invention can be prefabricated as a single part and delivered to the construction site in a prefabricated state. There, the stair formwork only has to be installed in its entirety at the intended location. Since the formwork walls are made of plaster base material, the cast formwork can be plastered immediately, which makes work even easier.
  • the standing step formwork walls and / or the underside formwork wall are each connected to the reinforcement.
  • the underside formwork wall is connected to the reinforcement via spacers.
  • Insulation in particular sound insulation, can then also be inserted at this distance.
  • the insulation is provided with a top layer according to claim 6.
  • the formwork walls and the reinforcement are made of a metal, expediently the usual structural steel, they can be connected in a simple manner by welding.
  • Claim 8 describes a particularly preferred material for the formwork walls, which on the one hand shows good stability and thus a good suitability as a formwork wall and on the other hand has plaster base properties.
  • the top layer on the top of the insulation also expediently consists of a plaster base material, so that the insulation can be firmly anchored to the concrete.
  • the protruding reinforcement according to claim 10 can be firmly connected to a reinforcement of a wall and / or a reinforcement of a landing or the like, so that a force-transmitting connection is achieved.
  • Fig. 1 shows a first embodiment of a staircase formwork element 1 according to the invention, which is prefabricated and delivered to the construction site in a prefabricated state and there as lost. ie formwork remaining in the concrete is used.
  • the formwork element 1 contains, in the layer structure from bottom to top, an underside formwork wall 2, a reinforcement 3 and standing step formwork walls 4.
  • the underside formwork wall 2 and the standing step formwork walls 4 consist of the same material with good plaster adhesion, for example the material described in EP 507 054, the content of which is hereby incorporated by reference.
  • the material used for the formwork walls 2 and 4 consists of an expanded metal sheet 5, which is enclosed between cross bars 6 and longitudinal bars 7 of a lattice work, the transverse and longitudinal bars 6, 7 including the expanded metal sheet 5 being welded together at their crossing points.
  • the cross and longitudinal bars 6, 7 consist of structural steel and stiffen the expanded metal panel 5, so that there is a self-supporting formwork element.
  • the reinforcement 3 is a common structural steel mat of predetermined strength, and consists of cross bars 8 and longitudinal rods 9 made of structural steel, which are welded together at their crossing points.
  • the underside formwork wall 2 is produced or cut out in the predetermined size.
  • the size of the formwork wall 2 preferably corresponds to the length and width of the stairs to be manufactured between two stair landings.
  • the standing step formwork walls are also made or cut from the same material and correspond in size to the front formwork of each step.
  • the mesh of the reinforcement 3 is also produced in the desired size, whereby the reinforcement 3 can protrude beyond the boundaries of the underside formwork wall if the reinforcement 3 of the stairs is to be connected to the reinforcement of adjacent structural parts, for example walls or stair landings, in a force-transmitting manner .
  • areas 8a of the crossbars 8 are above the lateral long side of the underside formwork wall 2 before, so that the reinforcement 3 of the stair formwork can be connected to a reinforcement, not shown, of an adjacent wall.
  • the standing step formwork walls 4 are welded to the reinforcement 3 in the number corresponding to the number of steps required at such an angle that the standing step formwork walls 4 run vertically in a state installed for the stairs at the predetermined steepness angle.
  • the underside formwork wall 2 is also welded to the underside of the reinforcement 3.
  • standing step formwork walls 4 are backfilled with concrete until it has reached the upper edge 4a of each standing step formwork wall.
  • the concrete penetrates through the reinforcement 3 to the expanded metal panel 5 of the underside formwork wall 2 and fills all gaps, so that the reinforcement 3 is completely embedded in concrete.
  • Parts of the liquid concrete mass swell out through the openings in the expanded metal and harden to an extremely rough surface with good plaster adhesion, which is then plastered. This results in the dashed profile of the finished concrete stairs.
  • FIG. 3 shows a further exemplary embodiment of a formwork element 10 according to the invention for stair formwork, which corresponds in substantial parts to the formwork element 1 of FIGS. 1 and 2, identical or comparable components being identified by the same reference symbols and not being explained again.
  • the formwork element 10 of FIG. 3 is suitable for producing an insulated staircase.
  • the underside formwork wall 2 via spacers 11, the bars, lattice girders or strips of a lattice mat can be connected to the reinforcement 3 and is thereby kept at a distance from the reinforcement 3.
  • a sound insulation 12 is arranged, which can be designed as an insulating mat or as an insulating fill.
  • the insulation 12 is covered on its side facing the reinforcement 3 with a cover layer 13, which consists of the material of the formwork walls 2 and 4, ie contains an expanded metal sheet 5 enclosed between transverse and longitudinal bars of a latticework.
  • the spacers 11 extend through the insulation 12 and have been pushed through the expanded metal panel 5 of the cover layer 13 and are preferably also welded to it.
  • concrete is poured in up to the upper edge 4a of each standing step formwork wall, which fills the entire space up to the top layer 13 and is firmly connected to the top layer 13 by the rough surface of the expanded metal panel 5.
  • another plaster base material can also be used for the formwork walls.
  • the underside formwork wall can also be connected to the reinforcement using spacers if no insulation but only a larger concrete cover is required. If the staircase is to be connected to surrounding components on all sides, the reinforcement can protrude from the formwork walls on all sides.
  • the end faces of the steps lying parallel to the drawing plane in FIGS. 2 and 3 between the standing step formwork wall and the reinforcement can also be made with plaster base material be covered.
  • single bars, brackets or the like can also be used.
  • the formwork element can be produced in any required size, for example for particularly long stairs the required stair formwork can also be welded together from several formwork elements, each of which only extends over a partial length. Furthermore, the formwork elements can be welded to platform formworks which are designed analogously as lost formwork elements.

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  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Steps, Ramps, And Handrails (AREA)
  • Magnetically Actuated Valves (AREA)

Abstract

The shuttering (10) has walls (2,4) made of a material which can be plastered and a metal reinforcing mesh (3). The walls define the underside of the staircase and the risers for each stair tread, each secured to the mesh. Preferably, a sound insulation layer (12) is inserted between the mesh and the shuttering wall (2) defining the underside of the staircase. This is held away from the mesh via spacers (11).

Description

Die Erfindung bezieht sich auf eine Treppenschalung der im Oberbegriff von Patentanspruch 1 erläuterten Art.The invention relates to stair formwork of the type explained in the preamble of claim 1.

Gegenwärtig werden Treppenschalungen im Betonbau aus Schalbrettern aufgebaut, die nach dem Ausgießen mit Beton wieder entfernt werden. Der Aufbau einer Treppenschalung aus Schalbrettern ist äußerst kompliziert und vor allen Dingen sehr zeitaufwendig.Currently, stair formwork in concrete construction is made up of formwork boards that are removed after pouring with concrete. Building a staircase formwork from formwork boards is extremely complicated and, above all, very time-consuming.

Aus der US-A-3 885 365 ist eine Treppenschalung bekannt, die einen Rahmen aus einer Vielzahl von Rahmenstreben aufweist. Die Rahmenstreben sind gelenkig miteinander verbunden, so daß die Treppenschalung auf der Baustelle auf jede gewünschte Treppenneigung eingestellt werden kann. Die Treppenschalung kann Streckmetall zum Abschalen der Stufen enthalten. Die Unterseite der Treppe muß jedoch auch bei Verwendung der bekannten, vorgefertigten Treppenschalung nach wie vor mit Holz abgeschalt werden, das nachfolgend wieder entfernt werden muß.From US-A-3 885 365 a stair formwork is known which has a frame made of a plurality of frame struts. The frame struts are hinged together so that the stair formwork on the construction site can be adjusted to any desired stair inclination. The stair formwork can contain expanded metal to form the steps. However, even when using the known, prefabricated staircase formwork, the underside of the stairs still has to be shut off with wood, which must subsequently be removed.

Die DE-A-1 509 351 beschreibt eine Schalung in Stahl- oder Metallkonstruktion zum Herstellen einer einzelnen Treppenstufe in Form einer Trittplatte aus Beton. Die Trittplatte wird offensichtlich dann entweder freitragend über die Anker in die Wand einbetoniert oder durch eine andere Konstruktion gehalten. Die Herstellung einer gesamten Treppe mit Unterseiten- und Stehstufen-Schalungswänden ist nicht beschrieben.DE-A-1 509 351 describes a formwork in steel or metal construction for producing a single step in the form of a concrete step plate. The step plate is then obviously either cantilevered into the wall via the anchors or held in place by another construction. The production of an entire staircase with underside and standing step formwork walls is not described.

Der Erfindung liegt die Aufgabe zugrunde, eine Treppenschalung bereitzustellen, die kostengünstig hergestellt und auf jeder Baustelle einfach aufgestellt und eingesetzt werden kann.The invention has for its object to provide a stair formwork that is inexpensive to manufacture and can be easily set up and used on any construction site.

Die Aufgabe wird durch die kennzeichnenden Merkmale des Anspruchs 1 gelöst.The object is achieved by the characterizing features of claim 1.

Durch die Ausgestaltung als verlorenes Schalungselement, das zumindest eine Unterseiten-Schalungswand und die für die Treppenlänge notwendige Anzahl Stehstufen-Schalungswände sowie die Bewehrung umfaßt, kann die erfindungsgemäße Treppenschalung als Einzelteil vorgefertigt und in vorgefertigtem Zustand auf die Baustelle geliefert werden. Dort muß die Treppenschalung nur noch im Ganzen an die vorgesehene Stelle eingebaut werden. Da die Schalungswände aus Putzträgermaterial bestehen, kann die fertig vergossenen Schalung sofort verputzt werden, was eine weitere Arbeitserleichterung darstellt.Due to the design as a lost formwork element, which includes at least one underside formwork wall and the number of standing step formwork walls required for the length of the stairs, as well as the reinforcement, the stair formwork according to the invention can be prefabricated as a single part and delivered to the construction site in a prefabricated state. There, the stair formwork only has to be installed in its entirety at the intended location. Since the formwork walls are made of plaster base material, the cast formwork can be plastered immediately, which makes work even easier.

Zweckmäßigerweise sind gemäß den Ansprüchen 2 und 3 die Stehstufen-Schalungswände und/oder die Unterseiten-Schalungswand jeweils mit der Bewehrung verbunden.Appropriately, according to claims 2 and 3, the standing step formwork walls and / or the underside formwork wall are each connected to the reinforcement.

Ist eine höhere Betondeckung an der Unterseite der Treppe notwendig, so wird die Unterseiten-Schalungswand gemäß Anspruch 4 über Abstandshalter mit der Bewehrung verbunden.If a higher concrete cover on the underside of the stairs is necessary, the underside formwork wall is connected to the reinforcement via spacers.

In diesen Abstand kann dann gemäß Anspruch 5 auch eine Isolierung, insbesondere eine Schallisolierung eingelegt werden.Insulation, in particular sound insulation, can then also be inserted at this distance.

Um eine gute Anbindung auch der Isolierung an den Beton zu erreichen, wird die Isolierung gemäß Anspruch 6 mit einer Decklage versehen.In order to achieve a good connection of the insulation to the concrete, the insulation is provided with a top layer according to claim 6.

Sind gemäß Anspruch 7 die Schalungswände und die Bewehrung aus einem Metall, zweckmäßigerweise dem üblichen Baustahl, so können sie auf einfache Weise durch Verschweißen verbunden werden.If, according to claim 7, the formwork walls and the reinforcement are made of a metal, expediently the usual structural steel, they can be connected in a simple manner by welding.

Anspruch 8 beschreibt ein besonders bevorzugtes Material für die Schalungswände, das einerseits eine gute Stabilität und somit eine gute Eignung als Schalungswand zeigt und andererseits Putzträgereigenschaften aufweist.Claim 8 describes a particularly preferred material for the formwork walls, which on the one hand shows good stability and thus a good suitability as a formwork wall and on the other hand has plaster base properties.

Zweckmäßigerweise besteht die Decklage an der Oberseite der Isolierung ebenfalls aus einem Putzträgermaterial, so daß die Isolierung fest mit dem Beton verankert werden kann.The top layer on the top of the insulation also expediently consists of a plaster base material, so that the insulation can be firmly anchored to the concrete.

Die überstehende Bewehrung nach Anspruch 10 kann mit einer Bewehrung einer Wand und/oder einer Bewehrung eines Treppenabsatzes oder dgl. fest verbunden werden, so daß eine kraftübertragende Anbindung erreicht wird.The protruding reinforcement according to claim 10 can be firmly connected to a reinforcement of a wall and / or a reinforcement of a landing or the like, so that a force-transmitting connection is achieved.

Ausführungsbeispiele der vorliegenden Erfindung werden nachfolgend anhand der Zeichnungen näher erläutert. Es zeigen:

Fig. 1
eine perspektivische Darstellung eines ersten Ausführungsbeispieles einer erfindungsgemäßen Treppenschalung,
Fig. 2
eine Teilansicht der Treppenschalung nach Fig. 1 in eingebautem Zustand, und
Fig. 3
eine Darstellung ähnlich Fig. 2 mit einem zweiten Ausführungsbeispiel der Erfindung.
Exemplary embodiments of the present invention are explained in more detail below with reference to the drawings. Show it:
Fig. 1
2 shows a perspective illustration of a first exemplary embodiment of a staircase formwork according to the invention,
Fig. 2
a partial view of the stair formwork of FIG. 1 in the installed state, and
Fig. 3
a representation similar to FIG. 2 with a second embodiment of the invention.

Fig. 1 zeigt ein erstes Ausführungsbeispiel eines erfindungsgemäßen Treppenschalungselementes 1, das fabrikmäßig vorgefertigt und in vorgefertigtem Zustand auf die Baustelle geliefert und dort als verlorene. d.h. im Beton verbleibende, Schalung eingesetzt wird. Das Schalungselement 1 enthält, im Schichtaufbau von unten nach oben, eine Unterseiten-Schalungswand 2, eine Bewehrung 3 und Stehstufen-Schalungswände 4.Fig. 1 shows a first embodiment of a staircase formwork element 1 according to the invention, which is prefabricated and delivered to the construction site in a prefabricated state and there as lost. ie formwork remaining in the concrete is used. The formwork element 1 contains, in the layer structure from bottom to top, an underside formwork wall 2, a reinforcement 3 and standing step formwork walls 4.

Die Unterseiten-Schalungswand 2 und die Stehstufen-Schalungswände 4 bestehen aus dem gleichen Material mit guter Putzhaftung, beispielsweise dem in der EP 507 054 beschriebenen Material, deren Inhalt durch Bezugnahme hiermit eingeschlossen wird. Das für die Schalungswände 2 und 4 verwendete Material besteht aus einer Streckmetalltafel 5, die zwischen Querstäben 6 und Längsstäben 7 eines Gitterwerks eingeschlossen ist, wobei die Quer- und Längsstäbe 6, 7 unter Einschluß der Streckmetalltafel 5 an ihren Kreuzungspunkten miteinander verschweißt sind. Die Quer- und Längsstäbe 6, 7 bestehen aus Baustahl und versteifen die Streckmetalltafel 5, so daß sich ein selbsttragendes Schalungselement ergibt.The underside formwork wall 2 and the standing step formwork walls 4 consist of the same material with good plaster adhesion, for example the material described in EP 507 054, the content of which is hereby incorporated by reference. The material used for the formwork walls 2 and 4 consists of an expanded metal sheet 5, which is enclosed between cross bars 6 and longitudinal bars 7 of a lattice work, the transverse and longitudinal bars 6, 7 including the expanded metal sheet 5 being welded together at their crossing points. The cross and longitudinal bars 6, 7 consist of structural steel and stiffen the expanded metal panel 5, so that there is a self-supporting formwork element.

Die Bewehrung 3 ist eine übliche Baustahlmatte vorbestimmter Festigkeit, und besteht aus Querstäben 8 und Längsstäben 9 aus Baustahl, die an ihren Kreuzungspunkten miteinander verschweißt sind.The reinforcement 3 is a common structural steel mat of predetermined strength, and consists of cross bars 8 and longitudinal rods 9 made of structural steel, which are welded together at their crossing points.

Zum Herstellen des Schalungselementes 1 für die erfindungsgemäße Treppenschalung wird die Unterseiten-Schalungswand 2 in der vorbestimmten Größe hergestellt oder ausgeschnitten. Die Größe der Schalungswand 2 entspricht bevorzugt der Länge und Breite der zu fertigenden Treppe zwischen zwei Treppenpodesten. Auch die Stehstufen-Schalungswände werden aus dem gleichen Material hergestellt bzw. ausgeschnitten und entsprechen in ihrer Größe der vorderen Abschalung jeder Stufe.To produce the formwork element 1 for the stair formwork according to the invention, the underside formwork wall 2 is produced or cut out in the predetermined size. The size of the formwork wall 2 preferably corresponds to the length and width of the stairs to be manufactured between two stair landings. The standing step formwork walls are also made or cut from the same material and correspond in size to the front formwork of each step.

Die Gittermatte der Bewehrung 3 wird ebenfalls in der gewünschten Größe hergestellt, wobei die Bewehrung 3 über die Begrenzungen der Unterseiten-Schalungswand vorstehen kann, wenn die Bewehrung 3 der Treppe mit der Bewehrung von angrenzenden Konstruktionsteilen, beispielsweise von Wänden oder Treppenpodesten, kraftübertragend verbunden werden soll. Im dargestellten Ausführungsbeispiel stehen Bereiche 8a der Querstäbe 8 über die seitliche Langseite der Unterseiten-Schalungswandung 2 vor, so daß die Bewehrung 3 der Treppenschalung mit einer nicht gezeichneten Bewehrung einer angrenzenden Wand verbunden werden kann.The mesh of the reinforcement 3 is also produced in the desired size, whereby the reinforcement 3 can protrude beyond the boundaries of the underside formwork wall if the reinforcement 3 of the stairs is to be connected to the reinforcement of adjacent structural parts, for example walls or stair landings, in a force-transmitting manner . In the illustrated embodiment, areas 8a of the crossbars 8 are above the lateral long side of the underside formwork wall 2 before, so that the reinforcement 3 of the stair formwork can be connected to a reinforcement, not shown, of an adjacent wall.

Zum Vervollständigen des Schalungselementes 1 werden die Stehstufen-Schalungswände 4 in der der Anzahl der notwendigen Stufen entsprechenden Anzahl unter einem solchen Winkel mit der Bewehrung 3 verschweißt, daß die Stehstufen-Schalungswände 4 in einem unter dem vorbestimmten Steilheitswinkel für die Treppe eingebauten Zustand vertikal verlaufen. Auch die Unterseiten-Schalungswand 2 wird an der Unterseite der Bewehrung 3 angeschweißt. Nunmehr ist das Schalungselement 1 der erfindungsgemäßen Treppenschalung fertig für den Einbau, wie er in Fig. 2 gezeigt ist.To complete the formwork element 1, the standing step formwork walls 4 are welded to the reinforcement 3 in the number corresponding to the number of steps required at such an angle that the standing step formwork walls 4 run vertically in a state installed for the stairs at the predetermined steepness angle. The underside formwork wall 2 is also welded to the underside of the reinforcement 3. The formwork element 1 of the stair formwork according to the invention is now ready for installation, as shown in FIG. 2.

Wie Fig. 2 zeigt, werden Stehstufen-Schalungswände 4 mit Beton hinterfüllt, bis dieser die Oberkante 4a jeder Stehstufen-Schalungswand erreicht hat. Der Beton dringt durch die Bewehrung 3 bis zur Streckmetalltafel 5 der Unterseiten-Schalungswand 2 und füllt alle Zwischenräume aus, so daß die Bewehrung 3 vollständig in Beton eingebettet ist. Teile der flüssigen Betonmasse quellen durch die Öffnungen im Streckmetall nach außen und erhärten zu einer äußerst rauhen Oberfläche mit guter Putzhaftung, die anschließend verputzt wird. Dadurch ergibt sich das gestrichelt eingezeichnete Profil der fertigen Betontreppe.As shown in FIG. 2, standing step formwork walls 4 are backfilled with concrete until it has reached the upper edge 4a of each standing step formwork wall. The concrete penetrates through the reinforcement 3 to the expanded metal panel 5 of the underside formwork wall 2 and fills all gaps, so that the reinforcement 3 is completely embedded in concrete. Parts of the liquid concrete mass swell out through the openings in the expanded metal and harden to an extremely rough surface with good plaster adhesion, which is then plastered. This results in the dashed profile of the finished concrete stairs.

Fig. 3 zeigt ein weiteres Ausführungsbeispiel eines erfindungsgemäßen Schalungselementes 10 für eine Treppenschalung, das in wesentlichen Teilen dem Schalungselement 1 der Fig. 1 und 2 entspricht, wobei gleiche bzw. vergleichbare Bauteile mit den gleichen Bezugszeichen gekennzeichnet und nicht nochmals erläutert sind. Das Schalungselement 10 der Fig. 3 ist zur Herstellung einer isolierten Treppe geeignet. Zu diesem Zweck ist die Unterseiten-Schalungswand 2 über Abstandshalter 11, die Stäbe, Gitterträger oder Streifen einer Gittermatte sein können, mit der Bewehrung 3 verbunden und wird dadurch im Abstand zur Bewehrung 3 gehalten. Im Zwischenraum zwischen der Bewehrung 3 und der Unterseiten-Schalungswand 2, bevorzugt anliegend an der Unterseiten-Schalungswand 2, ist eine Schallisolierung 12 angeordnet, die als Isoliermatte oder als Isolierschüttung ausgebildet sein kann. Die Isolierung 12 wird an ihrer der Bewehrung 3 zugewandten Seite mit einer Decklage 13 abgedeckt, die aus dem Material der Schalungswände 2 und 4 besteht, d.h. eine zwischen Quer- und Längsstäben eines Gitterwerks eingeschlossene Streckmetalltafel 5 enthält. Die Abstandshalter 11 erstrecken sich durch die Isolierung 12 und wurden durch die Streckmetalltafel 5 der Decklage 13 gestoßen und sind bevorzugt ebenfalls mit ihr verschweißt. Anschließend wird wie im Ausführungsbeispiel der Fig. 2 Beton bis zur Oberkante 4a jeder Stehstufen-Schalungswand eingefüllt, der den gesamten Zwischenraum bis zur Decklage 13 ausfüllt und durch die rauhe Oberfläche der Streckmetalltafel 5 der Decklage 13 fest angebunden wird. Anschließend wird die Schauseite der Stehstufen-Schalungswände 4 sowie der Unterseiten-Schalungswand 2 verputzt, wobei der Putz an der Unterseiten-Schalungswand durch die rauhe Oberfläche der Streckmetalltafel 5 auch ohne die zusätzliche Rauhigkeit, die ein hindurchtretender Beton verursacht, fest haftet.3 shows a further exemplary embodiment of a formwork element 10 according to the invention for stair formwork, which corresponds in substantial parts to the formwork element 1 of FIGS. 1 and 2, identical or comparable components being identified by the same reference symbols and not being explained again. The formwork element 10 of FIG. 3 is suitable for producing an insulated staircase. For this purpose, the underside formwork wall 2 via spacers 11, the bars, lattice girders or strips of a lattice mat can be connected to the reinforcement 3 and is thereby kept at a distance from the reinforcement 3. In the space between the reinforcement 3 and the underside formwork wall 2, preferably adjacent to the underside formwork wall 2, a sound insulation 12 is arranged, which can be designed as an insulating mat or as an insulating fill. The insulation 12 is covered on its side facing the reinforcement 3 with a cover layer 13, which consists of the material of the formwork walls 2 and 4, ie contains an expanded metal sheet 5 enclosed between transverse and longitudinal bars of a latticework. The spacers 11 extend through the insulation 12 and have been pushed through the expanded metal panel 5 of the cover layer 13 and are preferably also welded to it. Subsequently, as in the exemplary embodiment in FIG. 2, concrete is poured in up to the upper edge 4a of each standing step formwork wall, which fills the entire space up to the top layer 13 and is firmly connected to the top layer 13 by the rough surface of the expanded metal panel 5. Then the front side of the standing step formwork walls 4 and the underside formwork wall 2 is plastered, the plaster firmly adhering to the underside formwork wall due to the rough surface of the expanded metal panel 5 even without the additional roughness that a concrete that passes through it.

In Abwandlung der beschriebenen und gezeichneten Ausführungsbeispiele kann auch ein anderes Putzträgermaterial für die Schalungswände verwendet werden. Die Unterseiten-Schalungswand kann auch dann über Abstandshalter mit der Bewehrung verbunden werden, wenn keine Isolierung sondern lediglich eine größere Betonüberdeckung gewünscht wird. Die Bewehrung kann, falls die Treppe allseitig an umgebende Bauteile angebunden werden soll, an allen Seiten über die Schalungswände vorstehen. Für ein- oder zweiseitig freie Treppen können die in den Fig. 2 und 3 parallel zur Zeichnungsebene liegenden Stirnseiten der Stufen zwischen der Stehstufen-Schalungswand und der Bewehrung ebenfalls mit Putzträgermaterial abgedeckt werden. Anstelle der Bewehrungsmatte können auch Einzelstäbe, Bügel oder dgl. eingesetzt werden. Das Schalungselement kann in jeder geforderten Größe hergestellt werden, wobei beispielsweise für besonders lange Treppen die erforderliche Treppenschalung auch aus mehreren Schalungselementen, die sich jeweils nur über eine Teillänge erstrecken, zusammengeschweißt werden kann. Weiterhin können die Schalungselemente mit analog als verlorene Schalungselemente ausgebildeten Podestschalungen verschweißt werden.In a modification of the exemplary embodiments described and drawn, another plaster base material can also be used for the formwork walls. The underside formwork wall can also be connected to the reinforcement using spacers if no insulation but only a larger concrete cover is required. If the staircase is to be connected to surrounding components on all sides, the reinforcement can protrude from the formwork walls on all sides. For stairs that are free on one or two sides, the end faces of the steps lying parallel to the drawing plane in FIGS. 2 and 3 between the standing step formwork wall and the reinforcement can also be made with plaster base material be covered. Instead of the reinforcement mat, single bars, brackets or the like can also be used. The formwork element can be produced in any required size, for example for particularly long stairs the required stair formwork can also be welded together from several formwork elements, each of which only extends over a partial length. Furthermore, the formwork elements can be welded to platform formworks which are designed analogously as lost formwork elements.

Claims (10)

Treppenschalung für eine Betontreppe, gekennzeichnet durch ihre Ausgestaltung als verlorenes Schalungselement (1, 10) mit Schalungswänden (2, 4) aus einem Putzträgermaterial und einer Bewehrung (3), wobei die Schalungswände (2, 4) eine durchgehende Unterseiten-Schalungswand (2) und eine Mehrzahl von Stehstufen-Schalungswänden (4) umfassen.Stair formwork for a concrete staircase, characterized by its configuration as a lost formwork element (1, 10) with formwork walls (2, 4) made of a plaster base material and reinforcement (3), the formwork walls (2, 4) being a continuous underside formwork wall (2) and comprise a plurality of standing step formwork walls (4). Treppenschalung nach Anspruch 1, dadurch gekennzeichnet, daß die Stehstufen-Schalungswände (4) fest mit der Bewehrung (3) verbunden sind.Stair formwork according to claim 1, characterized in that the standing step formwork walls (4) are firmly connected to the reinforcement (3). Treppenschalung nach Anspruch 1 oder 2, dadurch gekennzeichnet, daß die Unterseiten-Schalungswand (2) fest mit der Bewehrung (3) verbunden ist.Stair formwork according to claim 1 or 2, characterized in that the underside formwork wall (2) is firmly connected to the reinforcement (3). Treppenschalung nach einem der Ansprüche 1 bis 3, dadurch gekennzeichnet, daß zwischen der Unterseiten-Schalungswand (2) und der Bewehrung (3) ein Abstandshalter (11) vorgesehen ist.Stair formwork according to one of claims 1 to 3, characterized in that a spacer (11) is provided between the underside formwork wall (2) and the reinforcement (3). Treppenschalung nach einem der Ansprüche 1 bis 4, dadurch gekennzeichnet, daß zwischen der Unterseiten-Schalungswand (2) und der Bewehrung (3) eine Isolierung (12) angeordnet ist.Stair formwork according to one of claims 1 to 4, characterized in that an insulation (12) is arranged between the underside formwork wall (2) and the reinforcement (3). Treppenschalung nach Anspruch 5, dadurch gekennzeichnet, daß die Isolierung (12) zwischen der Unterseiten-Schalungswand (2) und einer Decklage (13) angeordnet ist, und daß die Unterseiten-Schalungswand (2) und die Decklage (13) untereinander und mit der Bewehrung (3) verbunden sind.Stair formwork according to Claim 5, characterized in that the insulation (12) is arranged between the underside formwork wall (2) and a cover layer (13), and in that the underside formwork wall (2) and the cover layer (13) with one another and with the Reinforcement (3) are connected. Treppenschalung nach einem der Ansprüche 1 bis 6, dadurch gekennzeichnet, daß die Schalungswände (2, 4) aus einem metallischen Material bestehen und mit der metallischen Bewehrung (3) verschweißt sind.Stair formwork according to one of claims 1 to 6, characterized in that the formwork walls (2, 4) made of a metallic Material exist and are welded to the metallic reinforcement (3). Treppenschalung nach einem der Ansprüche 1 bis 7, dadurch gekennzeichnet, daß die Schalungswände (2, 4) aus einer zwischen Quer- und Längsstäben (6, 7) eingeschlossenen Streckmetalltafel (5) bestehen.Stair formwork according to one of claims 1 to 7, characterized in that the formwork walls (2, 4) consist of an expanded metal sheet (5) enclosed between transverse and longitudinal bars (6, 7). Treppenschalung nach einem der Ansprüche 6 bis 8, dadurch gekennzeichnet, daß die Decklage (13) aus dem gleichen Material wie die Unterseiten-Schalungswand (2) besteht.Stair formwork according to one of claims 6 to 8, characterized in that the cover layer (13) consists of the same material as the underside formwork wall (2). Treppenschalung nach einem der Ansprüche 1 bis 9, dadurch gekennzeichnet, daß die Bewehrung (3) an mindestens einer Seite über die Schalungswände (2, 4) zum Anschluß an eine Bewehrung in einem angrenzenden Bauteil vorsteht.Stair formwork according to one of Claims 1 to 9, characterized in that the reinforcement (3) projects on at least one side over the formwork walls (2, 4) for connection to a reinforcement in an adjacent component.
EP96109708A 1995-08-01 1996-06-17 Shuttering for staircases Ceased EP0757140A1 (en)

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DE29512392U DE29512392U1 (en) 1995-08-01 1995-08-01 Stair formwork
DE29512392U 1995-08-01

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2010056095A1 (en) * 2008-11-13 2010-05-20 Uab "Archiprojektas" Flight of stairs and method of construction thereof
WO2011004209A1 (en) * 2009-06-22 2011-01-13 Plastedil S.A. Lost formwork structure for making staircases and stair- landings, method for making such structures and method for the relative application

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE830566C (en) * 1951-01-09 1952-02-04 Bernhard Artelt Circuit for the production of a masonry in the Schuettbauweise with one-sided insulating layer
DE1509351A1 (en) * 1962-07-31 1969-04-30 Siegfried Geisler Stair step in metal-concrete construction
US3885365A (en) * 1974-06-06 1975-05-27 Joe Warren Cox Self-adjusting stair
EP0457167A1 (en) * 1990-05-14 1991-11-21 Willibald Fischer Shuttering panel

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE830566C (en) * 1951-01-09 1952-02-04 Bernhard Artelt Circuit for the production of a masonry in the Schuettbauweise with one-sided insulating layer
DE1509351A1 (en) * 1962-07-31 1969-04-30 Siegfried Geisler Stair step in metal-concrete construction
US3885365A (en) * 1974-06-06 1975-05-27 Joe Warren Cox Self-adjusting stair
EP0457167A1 (en) * 1990-05-14 1991-11-21 Willibald Fischer Shuttering panel

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2010056095A1 (en) * 2008-11-13 2010-05-20 Uab "Archiprojektas" Flight of stairs and method of construction thereof
WO2011004209A1 (en) * 2009-06-22 2011-01-13 Plastedil S.A. Lost formwork structure for making staircases and stair- landings, method for making such structures and method for the relative application
RU2525407C2 (en) * 2009-06-22 2014-08-10 Пластедиль С.А. Design of form to make stairs and stair platforms, method to manufacture such form and method of its usage

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