EP0039384B1 - Permanent shuttering for ring beams, floor edges and/or lintels - Google Patents
Permanent shuttering for ring beams, floor edges and/or lintels Download PDFInfo
- Publication number
- EP0039384B1 EP0039384B1 EP81100779A EP81100779A EP0039384B1 EP 0039384 B1 EP0039384 B1 EP 0039384B1 EP 81100779 A EP81100779 A EP 81100779A EP 81100779 A EP81100779 A EP 81100779A EP 0039384 B1 EP0039384 B1 EP 0039384B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- shape
- metal clips
- limb
- layer
- lintels
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- 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.)
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Classifications
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
- E04C3/00—Structural elongated elements designed for load-supporting
- E04C3/02—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces
- E04C3/20—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces of concrete or other stone-like material, e.g. with reinforcements or tensioning members
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B5/00—Floors; Floor construction with regard to insulation; Connections specially adapted therefor
- E04B5/16—Load-carrying floor structures wholly or partly cast or similarly formed in situ
- E04B5/32—Floor structures wholly cast in situ with or without form units or reinforcements
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B5/00—Floors; Floor construction with regard to insulation; Connections specially adapted therefor
- E04B5/16—Load-carrying floor structures wholly or partly cast or similarly formed in situ
- E04B5/32—Floor structures wholly cast in situ with or without form units or reinforcements
- E04B2005/322—Floor structures wholly cast in situ with or without form units or reinforcements with permanent forms for the floor edges
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
- E04C3/00—Structural elongated elements designed for load-supporting
- E04C3/02—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces
- E04C2003/023—Lintels
Definitions
- Ring beams or ring anchors on buildings, edges of ceilings and lintels and door lintels are manufactured in the usual way with wooden formwork, which is removed and, if necessary, reused after the concrete has hardened.
- plaster supports in the form of plates in front of the plasterboard in such wooden formwork Pour the concrete in vertically.
- plaster base plates consist, for example, of cement-bound wood wool.
- plaster supports of this type which consist of multilayer boards, the layer facing the facade being capable of plastering, while the layer facing the concrete is a thermal barrier coating, such as polystyrene foam.
- DE-A-2 005 642 describes assembly components for the production of hollow or jacket concrete walls from at least two thermal insulation boards with pocket-like recesses, into which spacers bent at an angle on one or two sides are pressed at their two ends. These mounting components have no means for attachment to a support and result in cold bridges, since the connecting web of the spacers is exposed and creates a distance between the thermal insulation panel and the element adjacent to it.
- the object on which the invention was based was to obtain formwork for ring beams, ceiling edges and / or lintels which could be easily assembled and which did not result in cold bridges. This problem is solved by the lost formwork according to the invention.
- This lost formwork for ring beams, ceiling edges and / or lintels with metal brackets with at least two sections arranged essentially perpendicular to one another and with multi-layer panels which have an outer layer of plaster base and at least one heat insulation layer and bores spaced apart from one another and perpendicular to their bearing surface and are dimensioned in this way, that in each case one section of one of the metal brackets can be fully inserted is characterized in that the multilayer plates have recesses in the area of the bores on their bearing surface, which have the height of the metal bracket thickness and open into the bores, and that a different section of the metal bracket each Has device for attaching this section to a support.
- Such lost formwork can be installed quickly, since only the metal brackets are fastened at intervals from one another with the aid of the fastening device to the underlying support, such as masonry or roller shutter box, and then the multilayer panels with their holes or channels are pushed onto the vertical legs of the attached metal brackets Need to become.
- the multi-layer panels which were also required in the previously used wooden formwork, but were only inserted there, thus also serve as formwork, which is kept at the required distance by means of the easy-to-install metal bracket and fastened to the masonry, roller shutter box or other supports underneath.
- the metal brackets required as the only additional means according to the invention save time and manpower, wooden formwork and possibly external scaffold structures.
- the metal brackets In order to avoid measuring the distances between the metal brackets, they can be inserted into the holes in the multilayer panels before fastening, whereupon the formwork assembled in this way is then fastened to the masonry or other supports underneath using the fastening devices on the metal brackets. If, on the other hand, you first want to attach the metal brackets to the support and then push on the multilayer plates, it is advisable to make the holes wider than the width of the metal brackets in order to get a play for the insertion of the metal brackets.
- the multilayer boards are, for example, 2 m long in the usual way and for example 24, 30 or 36 cm wide.
- the metal brackets which are usually made of steel, are attached to the masonry or the like, for example, at intervals of 30 cm corresponding to the spacing of the holes in the multilayer panels.
- the multi-layer panels can only consist of an outer layer of plaster base, for example of cement-bound wood wool or the like, and a conventional thermal insulation layer, for example of polystyrene foam.
- the thermal insulation layer usually has low strength, it is expedient to let the multilayer panels consist of at least three layers, of which the outer layers have mechanical strength and consist, for example, of cement-bonded wood wool, while at least one thermal insulation is located between these solid plaster base outer layers layer is located.
- the bores spaced apart from one another are expediently provided in the middle thermal insulation layer.
- the holes or channels are usually subsequently milled into this layer.
- the fastening devices on the metal brackets can be designed differently. They expediently consist of at least one hole in the relevant leg of the metal bracket and a nail to be passed through this hole or a screw or rivet to be passed through the hole, the size of the holes being dimensioned such that the nails, screws or rivets do not slip through them can.
- the lost formwork according to the invention is placed on a brick wall, it is easiest to nail the metal brackets to the masonry through the holes mentioned, while expediently screwing or riveting when placed on a roller shutter box or the like.
- the metal brackets can have different lengths, widths and thicknesses.
- the length of the entire metal bracket and the individual legs results from the usual construction standards.
- the width and thickness of the metal brackets are chosen so that they give the formwork sufficient stability before concreting.
- the metal bracket can be 2 to 10 mm thick and 20 to 100, such as 40 mm wide.
- the shape of the metal bracket may vary slightly depending on the specific application within the scope of the features defined above.
- the metal bracket can consist of solid material or thin-walled metal sheet stabilized by deformation, which saves material.
- the metal brackets expediently have a U-shape with an essentially right-angled transition from the U-legs to the U-web which runs without a curvature, the fastening device being located in the U- Jetty is located.
- the length of the U-web corresponds to the width of the wall minus twice the distance between the outer surface of the multi-layer panels and the holes in the multi-layer panels. If the multilayer panels are now pushed onto the metal bracket, their outer surfaces are flush with the wall surfaces.
- the metal bracket suitably has a Z-shape with an essentially right-angled transition from the Z-legs to the Z-web, the Z-web and the two Z-legs being non-curved.
- the fastening devices can be located in the Z-web and / or one of the Z-legs, since in this case a multilayer plate is only placed on the facade side of the wall and the metal bracket is therefore on the top of the masonry and / or on the Fixed side of the masonry as can be nailed.
- U-shaped metal bracket is used for lost formwork, which is also used for the production of lintels or ring beams and ceiling edges arranged above them.
- lost formwork which is also used for the production of lintels or ring beams and ceiling edges arranged above them.
- lintels or ring beams and ceiling edges arranged above them.
- such combinations above doors, windows or roller shutter boxes are required where the ceiling is to be made from reinforced concrete at a distance from the door opening or window opening or the roller shutter box, but as an integral unit with the lintels located under these openings or roller shutter boxes.
- Metal brackets for this purpose have two U-legs of different lengths, the length of one U-leg essentially the height of the lintel or ring beam and the length of the other U-leg essentially the combined height of the lintel or ring beam and the ceiling above it corresponds.
- an additional stabilizing agent which is detachably connected to the free end of the shorter U-leg and to the longer U-leg in the central region thereof is provided.
- This additional web thus stabilizes the formwork by acting as a spacer between the free end of the shorter U-web and the longer U-web. After concreting, it can remain in the concrete or be removable and reusable. It is delivered as a separate part to make it easier to insert the reinforcement into the formwork.
- a simple embodiment of this additional web is that it has a preferably hook-shaped pin at one end and a hole at the other end and that the shorter U-leg has a pin that can be inserted into the hole at its free end and the longer U-leg has a hole in its central area, into which the preferably hook-shaped pin of the additional web can be inserted and can be attached by pressing it down.
- Such additional webs can also be used in the formwork according to FIG. 1a if the U-legs are longer, such as. B. from 24 cm to make additional stabilization appear appropriate.
- the multilayer boards can have different structures and consist of different materials, but this is part of the prior art.
- the lost formwork according to the invention shown in Fig. 1a consists of the three-layer multi-layer panels 1 and the U-shaped metal brackets 2, which are attached to the masonry 4 with the aid of a nail 3.
- the U-shaped metal brackets which are shown in Fig. 1b and 1c, each have an uncurved U-web 5 and two also non-curved U-legs 6. In the middle of the U-web 5 there is a hole 7 through which the Nail 3 is passed through.
- the structure of a preferred embodiment of the multi-layer panels 1 used in the lost formwork according to the invention is shown.
- These consist of a plaster base outer layer 8, for example made of cement-bound wood wool, of a middle thermal insulation layer 9, for example of hard polystyrene foam, and an inner stabilizing layer 10, for example again of cement-bound wood wool.
- Bores 11 are provided in the middle layer 9 and have been expediently milled into this layer.
- the insulation layer 10 and the middle layer 9 have a recess 12 corresponding to the thickness of the metal bracket 5, each opening in the bore 11. In this way it is achieved that the outside of the multilayer board 1 sits flush on the masonry 4.
- the formwork for room ceiling edge regions shown in FIG. 4a consists of Z-shaped metal brackets 13, the Z-legs 14 and 15 of which are connected to one another by the uncurved Z-web 16.
- the Z-leg 15 there is a hole 17 as a fastening device, through which a nail 18 is passed and driven into the masonry 19.
- the multilayer plates 1 are placed on the Z-legs 14.
- a hole can also be provided in the Z-web 16, through which a nail or a screw or the like is likewise passed for attachment to the masonry 19.
- FIGS. 5a to 5f is a modification of a lost formwork with U-shaped metal brackets of special design and for a special application. This formwork is used to create a lintel with overlying room cover.
- the U-web 25 there is a hole 26 through which the rivet 21 is passed.
- the U-leg 23 has a pin 27 which fits into a hole 28 of the additional web 29.
- This web 29 has at its other end a hook-like pin 30 which can be inserted into a recess 31 of the longer U-leg 24 and can be locked behind the lower edge of the recess 31.
- the higher multilayer plates 1 a in the area of the vertical bores 11 have lateral bores 32 which extend through the inner layer and the middle layer through to the vertical bores 11 and enlarge in the outer layer 8 such that the hook-like pin 30 behind the lower edge of the recess 31 can be hung.
- the additional web 29 stabilizes the formwork in its lower Part for the production of the lintel, in its part lying above the additional webs 29 is used to produce the ceiling.
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- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Forms Removed On Construction Sites Or Auxiliary Members Thereof (AREA)
- Storage Of Web-Like Or Filamentary Materials (AREA)
- Moulds, Cores, Or Mandrels (AREA)
- Moulding By Coating Moulds (AREA)
Abstract
Description
Ringbalken bzw. Ringanker an Gebäuden, Raumdeckenränder und Fenster- und Türstürze werden in üblicher Weise mit Holzschalungen hergestellt, die nach dem Aushärten des Betons entfernt und ggf. wiederverwendet werden.Ring beams or ring anchors on buildings, edges of ceilings and lintels and door lintels are manufactured in the usual way with wooden formwork, which is removed and, if necessary, reused after the concrete has hardened.
Um bei diesen an Ort und Stelle betonierten Bauteilen an ihren auf der Fassadenseite liegenden Flächen eine Putzfähigkeit zu bekommen und das Durchschlagen des Schwerbetons beim Putz zu verhindern, ist es auch bereits bekannt, in solche Holzschalungen an der Fassadenseite Putzträger in der Form von Platten vor dem Eingießen des Betons senkrecht einzulegen. Derartige Putzträgerplatten bestehen beispielsweise aus zementgebundener Holzwolle. Auch ist es bereits bekannt, als Putzträger dieser Art solche zu verwenden, die aus Mehrschichtplatten bestehen, wobei die nach der Fassade hin gerichtete Schicht putzfähig ist, während die nach dem Beton hin gerichtete Schicht eine Wärmedämmschicht, wie aus Polystyrolschaum, ist.In order to be able to clean these components that are concreted on site on their surfaces on the facade side and to prevent the heavy concrete from breaking through during plastering, it is already known to use plaster supports in the form of plates in front of the plasterboard in such wooden formwork Pour the concrete in vertically. Such plaster base plates consist, for example, of cement-bound wood wool. It is also already known to use plaster supports of this type which consist of multilayer boards, the layer facing the facade being capable of plastering, while the layer facing the concrete is a thermal barrier coating, such as polystyrene foam.
Die Herstellung solcher Bauteile mit Holzschalungen ist äußerst zeit- und arbeitsaufwendig, unter anderem auch deshalb, da die genannten Bauteile sich gewöhnlich an gemauerte Wände oder Tür- oder Fensteröffnungen anschließen, die keiner Schalung bedürfen, so daß die Holzschalungen ausschließlich für die genannten Bauteile, wie Ringbalken oder Stürze, angebracht werden müssen.The production of such components with wooden formwork is extremely time-consuming and labor-intensive, among other things because the components mentioned usually connect to brick walls or door or window openings that do not require any formwork, so that the wooden formwork is used exclusively for the components mentioned, such as Ring beams or lintels must be attached.
Die DE-A-2 005 642 beschreibt Montagebauteile zur Herstellung von Hohl- oder Mantelbetonwänden aus mindestens zwei Wärmedämmplatten mit taschenartigen Aussparungen, in die an ihren beiden Enden nach ein oder zwei Seiten winklig abgebogene Abstandhalter eingedrückt werden. Diese Montagebauteile haben keine Mittel zur Befestigung an einem Auflager und ergeben Kältebrücken, da der Verbindungssteg der Abstandshalter freiliegt und einen Abstand der Wärmedämmplatte von dem ihm benachbarten Element erzeugt.DE-A-2 005 642 describes assembly components for the production of hollow or jacket concrete walls from at least two thermal insulation boards with pocket-like recesses, into which spacers bent at an angle on one or two sides are pressed at their two ends. These mounting components have no means for attachment to a support and result in cold bridges, since the connecting web of the spacers is exposed and creates a distance between the thermal insulation panel and the element adjacent to it.
Die der Erfindung zugrundeliegende Aufgabe bestand nun darin, einfach montierbare Schalungen für Ringbalken, Deckenränder und/oder Stürze zu bekommen, die keine Kältebrücken ergeben. Diese Aufgabe wird durch die erfindungsgemäße verlorene Schalung gelöst.The object on which the invention was based was to obtain formwork for ring beams, ceiling edges and / or lintels which could be easily assembled and which did not result in cold bridges. This problem is solved by the lost formwork according to the invention.
Diese erfindungsgemäße verlorene Schalung für Ringbalken, Deckenränder und/oder Stürze mit Metallbügeln mit wenigstens zwei im wesentlichen senkrecht zueinander angeordneten Abschnitten und mit Mehrschichtplatten, die eine Putzträgeraußenschicht und wenigstens eine Wärmedämmschicht sowie voneinander beabstandete, zu ihrer Auflagefläche senkrechte Bohrungen besitzen, die so bemessen sind, daß jeweils der eine Abschnitt eines der Metallbügel vollständig einschiebbar ist, ist dadurch gekennzeichnet, daß die Mehrschichtplatten im Bereich der Bohrungen an ihrer Auflagefläche Ausnehmungen besitzen, die die Höhe der Metallbügelstärke haben und in den Bohrungen münden, und daß jeweils ein anderer Abschnitt der Metallbügel eine Einrichtung zur Befestigung dieses Abschnittes an einem Auflager hat.This lost formwork according to the invention for ring beams, ceiling edges and / or lintels with metal brackets with at least two sections arranged essentially perpendicular to one another and with multi-layer panels which have an outer layer of plaster base and at least one heat insulation layer and bores spaced apart from one another and perpendicular to their bearing surface and are dimensioned in this way, that in each case one section of one of the metal brackets can be fully inserted is characterized in that the multilayer plates have recesses in the area of the bores on their bearing surface, which have the height of the metal bracket thickness and open into the bores, and that a different section of the metal bracket each Has device for attaching this section to a support.
Derartige verlorene Schalungen sind schnell zu montieren, da lediglich die Metallbügel mit Hilfe der Befestigungseinrichtung an dem darunter befindlichen Auflager, wie Mauerwerk oder Rolladenkasten, in Abständen voneinander befestigt werden und anschließend die Mehrschichtplatten mit ihren Bohrungen oder Kanälen auf die senkrecht stehenden Schenkel der befestigten Metallbügel aufgeschoben werden müssen. Die Mehrschichtplatten, die bei den bisher verwendeten Holzschalungen auch erforderlich waren, dort aber lediglich eingelegt wurden, dienen somit gleichzeitig als Schalung, die mit Hilfe der einfach montierbaren Metallbügel im erforderlichen Abstand gehalten und auf dem darunter befindlichen Mauerwerk, Rolladenkasten oder anderen Auflager befestigt wird. Die erfindungsgemäß als einziges zusätzliches Mittel erforderlichen Metallbügel führen zur Einsparung von Zeit und Arbeitskraft, von Holzschalungen und ggf. Außengerüstaufbauten.Such lost formwork can be installed quickly, since only the metal brackets are fastened at intervals from one another with the aid of the fastening device to the underlying support, such as masonry or roller shutter box, and then the multilayer panels with their holes or channels are pushed onto the vertical legs of the attached metal brackets Need to become. The multi-layer panels, which were also required in the previously used wooden formwork, but were only inserted there, thus also serve as formwork, which is kept at the required distance by means of the easy-to-install metal bracket and fastened to the masonry, roller shutter box or other supports underneath. The metal brackets required as the only additional means according to the invention save time and manpower, wooden formwork and possibly external scaffold structures.
Um ein Abmessen der Abstände zwischen den Metallbügeln zu vermeiden, können diese vor der Befestigung in die Bohrungen der Mehrschichtplatten eingeschoben werden, worauf dann die so zusammengesetzte Schalung mit Hilfe der Befestigungseinrichtungen an den Metallbügeln an dem darunter befindlichen Mauerwerk oder anderen Auflager befestigt wird. Wenn man dagegen zunächst die Metallbügel an dem Auflager befestigen und anschließend die Mehrschichtplatten aufschieben will, ist es zweckmäßig, die Bohrungen breiter als die Breite der Metallbügel zu machen, um ein Spiel für das Einschieben der Metallbügel zu bekommen.In order to avoid measuring the distances between the metal brackets, they can be inserted into the holes in the multilayer panels before fastening, whereupon the formwork assembled in this way is then fastened to the masonry or other supports underneath using the fastening devices on the metal brackets. If, on the other hand, you first want to attach the metal brackets to the support and then push on the multilayer plates, it is advisable to make the holes wider than the width of the metal brackets in order to get a play for the insertion of the metal brackets.
Die Mehrschichtplatten sind beispielsweise in üblicher Weise 2 m lang und beispielsweise 24, 30 oder 36 cm breit. Die Metallbügel, die gewöhnlich aus Stahl bestehen, werden beispielsweise in Abständen von 30 cm entsprechend den Lochabständen in den Mehrschichtplatten an dem Mauerwerk oder dergleichen befestigt. Die Mehrschichtplatten können lediglich aus einer Putzträgeraußenschicht, beispielsweise aus zementgebundener Holzwolle oder dergleichen, und einer üblichen Wärmedämmschicht, beispielsweise aus Polystyrolschaum, bestehen. Da aber die Wärmedämmschicht gewöhnlich geringe Festigkeit besitzt, ist es zweckmäßig, die Mehrschichtplatten aus wenigstens drei Schichten bestehen zu lassen, von denen die Außenschichten mechanische Festigkeit besitzen und beispielsweise aus zementgebundener Holzwolle bestehen, während sich im Inneren zwischen diesen festen Putzträgerau- ßenschichten wenigstens eine Wärmedämmschicht befindet. Zweckmäßig sind die voneinander beabstandeten Bohrungen in der mittleren Wärmedämmschicht vorgesehen. Die Bohrungen bzw. Kanäle werden gewöhnlich nachträglich in diese Schicht eingefräst.The multilayer boards are, for example, 2 m long in the usual way and for example 24, 30 or 36 cm wide. The metal brackets, which are usually made of steel, are attached to the masonry or the like, for example, at intervals of 30 cm corresponding to the spacing of the holes in the multilayer panels. The multi-layer panels can only consist of an outer layer of plaster base, for example of cement-bound wood wool or the like, and a conventional thermal insulation layer, for example of polystyrene foam. However, since the thermal insulation layer usually has low strength, it is expedient to let the multilayer panels consist of at least three layers, of which the outer layers have mechanical strength and consist, for example, of cement-bonded wood wool, while at least one thermal insulation is located between these solid plaster base outer layers layer is located. The bores spaced apart from one another are expediently provided in the middle thermal insulation layer. The holes or channels are usually subsequently milled into this layer.
Die Befestigungseinrichtungen an den Metallbügeln können unterschiedlich ausgebildet sein. Zweckmäßig bestehen sie aus wenigstens einem Loch in dem betreffenden Schenkel des Metallbügels und einem durch dieses Loch hindurchzuführenden Nagel oder einer durch das Loch hindurchzuführenden Schraube oder Niete, wobei die Größe der Löcher so bemessen ist, daß die Nägel, Schrauben oder Nieten nicht durch sie hindurchrutschen können.The fastening devices on the metal brackets can be designed differently. They expediently consist of at least one hole in the relevant leg of the metal bracket and a nail to be passed through this hole or a screw or rivet to be passed through the hole, the size of the holes being dimensioned such that the nails, screws or rivets do not slip through them can.
Wenn die erfindungsgemäße verlorene Schalung auf einer gemauerten Wand aufgesetzt wird, ist es am einfachsten, die Metallbügel an dem Mauerwerk durch die genannten Löcher hindurch festzunageln, während beim Aufsetzen auf einen Rolladenkasten oder dergleichen zweckmäßig geschraubt oder genietet wird.If the lost formwork according to the invention is placed on a brick wall, it is easiest to nail the metal brackets to the masonry through the holes mentioned, while expediently screwing or riveting when placed on a roller shutter box or the like.
Die Metallbügel können unterschiedliche Länge, Breite und Stärke haben. Die Länge der gesamten Metallbügel und der einzelnen Schenkel ergibt sich aus den üblichen Baunormen. Breite und Stärke der Metallbügel werden so gewählt, daß sie eine ausreichende Standfestigkeit der Schalung vor dem Betonieren ergeben. Beispielsweise können die Metallbügel 2 bis 10 mm stark und 20 bis 100, wie 40 mm breit sein. Die Form der Metallbügel kann je nach der speziellen Anwendung im Rahmen der oben definierten Merkmale etwas voneinander abweichen. Der Metallbügel kann aus Vollmaterial oder dünnwandigem, durch Verformung stabilisiertem Metallblech bestehen, wodurch Material eingespart wird.The metal brackets can have different lengths, widths and thicknesses. The length of the entire metal bracket and the individual legs results from the usual construction standards. The width and thickness of the metal brackets are chosen so that they give the formwork sufficient stability before concreting. For example, the metal bracket can be 2 to 10 mm thick and 20 to 100, such as 40 mm wide. The shape of the metal bracket may vary slightly depending on the specific application within the scope of the features defined above. The metal bracket can consist of solid material or thin-walled metal sheet stabilized by deformation, which saves material.
Wenn die erfindungsgemäße verlorene Schalung beispielsweise für Ringbalken oder Tür-oder Fensterstürze bestimmt ist, haben die Metallbügel zweckmäßig U-Form mit einem im wesentlichen rechtwinkligen Übergang von den U-Schenkeln zu dem ungekrümmt verlaufenden U-Steg, wobei die Befestigungseinrichtung sich in dem U-Steg befindet. Die Länge des U-Steges entspricht dabei der Mauerbreite abzüglich des doppelten Abstandes zwischen der Außenfläche der Mehrschichjplatten und den Bohrungen in den Mehrschichtplatten. Wenn nunmehr die Mehrschichtplatten auf die Metallbügel aufgeschoben werden, schließen ihre Außenflächen bündig mit den Mauerflächen ab.If the lost formwork according to the invention is intended, for example, for ring beams or lintels or window lintels, the metal brackets expediently have a U-shape with an essentially right-angled transition from the U-legs to the U-web which runs without a curvature, the fastening device being located in the U- Jetty is located. The length of the U-web corresponds to the width of the wall minus twice the distance between the outer surface of the multi-layer panels and the holes in the multi-layer panels. If the multilayer panels are now pushed onto the metal bracket, their outer surfaces are flush with the wall surfaces.
Wenn die nach dem gleichen Prinzip aufgebauten verlorenen Schalungen andererseits für Deckenränder, d. h. die auf einer Gebäudemauer aufliegenden Randbereiche einer Raumdecke dienen, hat der Metallbügel zweckmäßig Z-Form mit einem im wesentlichen rechtwinkligen Übergang von den Z-Schenkeln zu dem Z-Steg, wobei der Z-Steg und die beiden Z-Schenkel ungekrümmt sind. Die Befestigungseinrichtungen können sich in diesem Fall in dem Z-Steg und/oder einem der Z-Schenkel befinden, da in diesem Fall nur an der Fassadenseite der Mauer eine Mehrschichtplatte aufgesetzt wird und die Metallbügel daher auf der Oberseite des Mauerwerks und/oder an der Seite des Mauerwerks befestigt, wie genagelt werden können.On the other hand, if the lost formwork constructed according to the same principle is used for ceiling edges, i.e. H. the edge areas of a room ceiling resting on a building wall, the metal bracket suitably has a Z-shape with an essentially right-angled transition from the Z-legs to the Z-web, the Z-web and the two Z-legs being non-curved. In this case, the fastening devices can be located in the Z-web and / or one of the Z-legs, since in this case a multilayer plate is only placed on the facade side of the wall and the metal bracket is therefore on the top of the masonry and / or on the Fixed side of the masonry as can be nailed.
Eine spezielle Ausführung der U-förmigen Metallbügel dient für verlorene Schalungen, die gleichzeitig zur Herstellung von Stürzen oder Ringbalken und darüber angeordneten Raumdeckenrändern dienen. Beispielsweise sind derartige Kombinationen über Türen, Fenster oder Rolladenkästen erforderlich, wo die Raumdecke im Abstand von der Türöffnung oder Fensteröffnung oder dem Rolladenkasten, aber als integrale Einheit mit dem unter diesen Öffnungen oder Rolladenkästen befindlichen Stürzen aus Stahlbeton hergestellt werden sollen.A special version of the U-shaped metal bracket is used for lost formwork, which is also used for the production of lintels or ring beams and ceiling edges arranged above them. For example, such combinations above doors, windows or roller shutter boxes are required where the ceiling is to be made from reinforced concrete at a distance from the door opening or window opening or the roller shutter box, but as an integral unit with the lintels located under these openings or roller shutter boxes.
Metallbügel für diesen Zweck besitzen zwei U-Schenkel unterschiedlicher Länge, wobei die Länge des einen U-Schenkels im wesentlichen der Höhe des Sturzes oder Ringbalkens und die Länge des anderen U-Schenkel im wesentlichen der kombinierten Höhe des Sturzes oder Ringbalkens und der darüber befindlichen Raumdecke entspricht.Metal brackets for this purpose have two U-legs of different lengths, the length of one U-leg essentially the height of the lintel or ring beam and the length of the other U-leg essentially the combined height of the lintel or ring beam and the ceiling above it corresponds.
Da durch die hierbei erforderliche Höhe des Betonformlings die Gefahr besteht, daß die erfindungsgemäße verlorene Schalung im oberen Bereich auseinandergebogen wird, ist es bei dieser Ausführungsform zweckmäßig, ein zusätzliches Stabilisierungsmittel vorzusehen. Dieses besteht zweckmäßig darin, daß parallel zu dem U-Steg ein mit dem freien Ende des kürzeren U-Schenkels und mit dem längeren U-Schenkel in dessen mittlerem Bereich lösbar verbundener zusätzlicher Steg vorgesehen ist. Dieser zusätzliche Steg stabilisiert also die Schalung, indem er als Abstandshalter zwischen dem freien Ende des kürzeren U-Steges und dem längeren U-Steg fungiert. Er kann nach dem Betonieren im Beton verbleiben oder herausnehmbar und wiederverwendbar sein. Es wird als getrenntes Teil angeliefert, um das Einlegen der Armierung in die Schalung zu erleichtern.Since there is a risk that the formwork according to the invention will be bent apart in the upper region due to the required height of the concrete molding, it is expedient in this embodiment to provide an additional stabilizing agent. This is expediently provided in that, parallel to the U-web, an additional web which is detachably connected to the free end of the shorter U-leg and to the longer U-leg in the central region thereof is provided. This additional web thus stabilizes the formwork by acting as a spacer between the free end of the shorter U-web and the longer U-web. After concreting, it can remain in the concrete or be removable and reusable. It is delivered as a separate part to make it easier to insert the reinforcement into the formwork.
Eine einfache Ausführungsform dieses zusätzlichen Steges besteht darin, daß er am einen Ende einen, vorzugsweise hakenartig ausgebildeten Zapfen und am anderen Ende ein Loch besitzt und daß der kürzere U-Schenkel an seinem freien Ende einen in das Loch einschiebbaren Zapfen und der längere U-Schenkel in seinem mittleren Bereich ein Loch besitzt, in welches der vorzugsweise hakenartig ausgebildete Zapfen des zusätzlichen Steges einschiebbar und durch Niederdrücken einhängbar ist.A simple embodiment of this additional web is that it has a preferably hook-shaped pin at one end and a hole at the other end and that the shorter U-leg has a pin that can be inserted into the hole at its free end and the longer U-leg has a hole in its central area, into which the preferably hook-shaped pin of the additional web can be inserted and can be attached by pressing it down.
Derartige zusätzliche Stege können auch bei der Schalung gemäß Fig. 1a verwendet werden, wenn die U-Schenkel länger sind, wie z. B. ab 24 cm, um eine zusätzliche Stabilisierung angebracht erscheinen zu lassen.Such additional webs can also be used in the formwork according to FIG. 1a if the U-legs are longer, such as. B. from 24 cm to make additional stabilization appear appropriate.
Selbstverständlich müssen in diesem Fall spezielle Mehrschichtplatten verwendet werden, die seitliche Durchbrechungen besitzen, durch welche die zusätzlichen Stege bis in die senkrechten Bohrungen geschoben werden können. Im Falle einer hakenartigen Ausbildung der Zapfen an den zusätzlichen Stegen müssen die seitlichen Bohrungen der Mehrschichtplatten bis über die senkrechten Bohrungen hinausgehen, um so ein Einhängen der zusätzlichen Stege in die Löcher des längeren U-Schenkels zu ermöglichen, wie die nachfolgende Zeichnung zeigt.In this case, of course, special multi-layer panels must be used which have side openings through which the additional webs can be pushed into the vertical bores. In the case of hook-like training the pin on the additional webs must extend the lateral holes of the multi-layer panels beyond the vertical holes in order to enable the additional webs to be hooked into the holes of the longer U-leg, as the following drawing shows.
Die Mehrschichtplatten können unterschiedlichen Aufbau besitzen und aus unterschiedlichen Materialien bestehen, was aber zum Stand der Technik gehört.The multilayer boards can have different structures and consist of different materials, but this is part of the prior art.
Die Zeichnung zeigt in
- Fig. 1a einen senkrechten Schnitt durch eine verlorene Schalung nach der Erfindung für einen Ringbalken oder Sturz,
- Fig. 1b eine Seitenansicht des in der Schalung gemäß Fig. 1 verwendeten Metallbügels,
- Fig. 1 eine Draufsicht auf den in Fig.lb dargestellten Metallbügel,
- Fig. eine Draufsicht auf einen Teil einer in den erfindungsgemäßen Schalungen verwendeten Mehrschichtplatte,
- Fig. 3 eine Seitenansicht der in Fig. 2 dargestellten Mehrschichtplatte,
- Fig.4a einen senkrechten Schnitt durch eine andere Ausführungsform einer verlorenen Schalung nach der Erfindung, und zwar zur Schalung von Raumdeckenrändern,
- Fig.4b eine seitliche Darstellung des in der Schalung gemäß Fig. 4a verwendeten Metallbügels,
- Fig.4c eine Seitenansicht des in Fig.4b gezeigten Metallbügels, von rechts gesehen,
- Fig. 5a einen senkrechten Schnitt durch noch eine andere Ausführungsform einer Schalung nach der Erfindung zur kombinierten Herstellung eines Fenstersturzes und einer Raumdecke,
- Fig. 5b eine Seitenansicht des in der Schalung gemäß Fig. 5a verwendeten Metallbügels mit zusätzlichem Steg,
- Fig. 5c eine Seitenansicht des in Fig. 5b dargestellten Metallbügels, von links gesehen,
- Fig. 5d eine Seitenansicht des in Fig. 5b dargestellten Metallbügels, von rechts gesehen,
- Fig. 5e eine Draufsicht auf den in Fig.5b dargestellten zusätzlichen Steg und
- Fig. 5f eine Seitenansicht des in Fig. 5b dargestellten zusätzlichen Steges.
- 1a is a vertical section through a lost formwork according to the invention for a ring beam or lintel,
- 1b is a side view of the metal bracket used in the formwork according to FIG. 1,
- 1 is a plan view of the metal bracket shown in Fig.lb,
- FIG. 1 shows a plan view of part of a multilayer board used in the formwork according to the invention,
- 3 is a side view of the multilayer board shown in FIG. 2,
- 4a shows a vertical section through another embodiment of a lost formwork according to the invention, namely for formwork of edges of the ceiling,
- 4b is a side view of the metal bracket used in the formwork according to FIG. 4a,
- 4c shows a side view of the metal bracket shown in FIG. 4b, seen from the right,
- 5a is a vertical section through yet another embodiment of a formwork according to the invention for the combined production of a lintel and a ceiling,
- 5b is a side view of the metal bracket used in the formwork according to FIG. 5a with an additional web,
- 5c is a side view of the metal bracket shown in Fig. 5b, seen from the left,
- 5d is a side view of the metal bracket shown in Fig. 5b, seen from the right,
- Fig. 5e is a plan view of the additional web shown in Fig.5b and
- Fig. 5f is a side view of the additional web shown in Fig. 5b.
Die in Fig. 1a dargestellte verlorene Schalung nach der Erfindung besteht aus den dreischichtigen Mehrschichtplatten 1 und den U-förmig ausgebildeten Metallbügeln 2, die mit Hilfe eines Nagels 3 auf dem Mauerwerk 4 befestigt sind. Die U-förmigen Metallbügel, die in Fig. 1b und 1c dargestellt sind, besitzen jeweils einen ungekrümmten U-Steg 5 und zwei ebenfalls ungekrümmte U-Schenkel 6. In der Mitte des U-Steges 5 befindet sich ein Loch 7, durch das der Nagel 3 hindurchgeführt wird.The lost formwork according to the invention shown in Fig. 1a consists of the three-layer multi-layer panels 1 and the U-shaped metal brackets 2, which are attached to the masonry 4 with the aid of a
In den Fig. 2 und 3 ist der Aufbau einer bevorzugten Ausführungsform der in den verlorenen Schalungen nach der Erfindung verwendeten Mehrschichtplatten 1 dargestellt. Diese bestehen aus einer Putzträgeraußenschicht 8 beispielsweise aus zementgebundener Holzwolle, aus einer mittleren Wärmedämmschicht 9, beispielsweise aus Polystyrolhartschaum, und einer inneren Stabilisierungsschicht 10, beispielsweise wiederum aus zementgebundener Holzwolle.2 and 3, the structure of a preferred embodiment of the multi-layer panels 1 used in the lost formwork according to the invention is shown. These consist of a plaster base
In der Mittelschicht 9 sind Bohrungen 11 vorgesehen, die in diese Schicht zweckmäßig eingefräst wurden. Am unteren Ende der Bohrungen besitzt die Dämmschicht 10 und die Mittelschicht 9 eine Ausnehmung 12 entsprechend der Stärke der Metallbügel 5, die jeweils in der Bohrung 11 mündet. Auf diese Weise erreicht man, daß die Außenseite der Mehrschichtplatte 1 bündig auf dem Mauerwerk 4 aufsitzt.
Die in Fig.4a dargestellte Schalung für Raumdeckenrandbereiche besteht aus Z-förmigen Metallbügeln 13, deren Z-Schenkel 14 und 15 durch den ungekrümmten Z-Steg 16 miteinander verbunden sind. In dem Z-Schenkel 15 befindet sich als Befestigungseinrichtung ein Loch 17, durch das ein Nagel 18 hindurchgeführt und in das Mauerwerk 19 getrieben wird. Auf die Z-Schenkel 14 werden, wie in der oben beschriebenen Ausführungsform, die Mehrschichtplatten 1 aufgesetzt. Zusätzlich zu der Befestigung mit Hilfe des Z-Schenkels 15 oder stattdessen kann auch in dem Z-Steg 16 ein Loch vorgesehen sein, durch das gleicherweise ein Nagel oder eine Schraube oder dergleichen zur Befestigung an dem Mauerwerk 19 hindurchgeführt wird.The formwork for room ceiling edge regions shown in FIG. 4a consists of Z-shaped
Bei der in den Fig. 5a bis 5f dargestellten Ausführungsform handelt es sich um eine Abwandlung einer verlorenen Schalung mit U-förmigen Metallbügeln spezieller Ausbildung und für einen speziellen Anwendungszweck. Diese Schalung dient zur Herstellung eines Fenstersturzes mit darüberliegender Raumdekke.The embodiment shown in FIGS. 5a to 5f is a modification of a lost formwork with U-shaped metal brackets of special design and for a special application. This formwork is used to create a lintel with overlying room cover.
Auf dem Rolladenkasten 20 wird mit Hilfe einer Niete 21 der U-förmige Metallbügel 22 befestigt, dessen kürzerer U-Schenkel 23 mit dem längeren U-Schenkel 24 über den U-Steg 25 verbunden ist. In dem U-Steg 25 befindet sich ein Loch 26, durch welches die Niete 21 hindurchgeführt wird.The
Am oberen Ende besitzt der U-Schenkel 23 einen Zapfen 27, der in ein Loch 28 des zusätzlichen Steges 29 paßt. Dieser Steg 29 besitzt an seinem anderen Ende einen hakenartig ausgebildeten Zapfen 30, der in eine Ausnehmung 31 des längeren U-Schenkels 24 einschiebbar und hinter den unteren Rand der Ausnehmung 31 einrastbar ist. Hierzu besitzen die höheren Mehrschichtplatten 1a im Bereich der senkrechten Bohrungen 11 seitliche Bohrungen 32, die durch die Innenschicht und die Mittelschicht hindurch bis über die senkrechten Bohrungen 11 hinausgehen und sich in der Außenschicht 8 derart vergrößern, daß der hakenartige Zapfen 30 hinter der Unterkante der Ausnehmung 31 eingehängt werden kann.At the upper end, the U-leg 23 has a
Nach dem Einhängen stabilisiert der zusätzliche Steg 29 die Schalung, die in ihrem unteren Teil zur Herstellung des Fenstersturzes, in ihrem über den zusätzlichen Stegen 29 liegenden Teil zur Herstellung der Raumdecke dient.After hanging, the
Claims (8)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
AT81100779T ATE4829T1 (en) | 1980-05-05 | 1981-02-04 | LOSED FORMWORK FOR RING BEAM, CEILING EDGES AND/OR LINTELS. |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19803017192 DE3017192A1 (en) | 1980-05-05 | 1980-05-05 | LOST FORMWORK FOR RING BEAMS |
DE3017192 | 1980-05-05 |
Publications (3)
Publication Number | Publication Date |
---|---|
EP0039384A2 EP0039384A2 (en) | 1981-11-11 |
EP0039384A3 EP0039384A3 (en) | 1981-12-30 |
EP0039384B1 true EP0039384B1 (en) | 1983-09-28 |
Family
ID=6101658
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP81100779A Expired EP0039384B1 (en) | 1980-05-05 | 1981-02-04 | Permanent shuttering for ring beams, floor edges and/or lintels |
Country Status (3)
Country | Link |
---|---|
EP (1) | EP0039384B1 (en) |
AT (1) | ATE4829T1 (en) |
DE (2) | DE3017192A1 (en) |
Families Citing this family (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2646681A1 (en) * | 1989-05-03 | 1990-11-09 | Claude Jean Louis | Formwork device for the slab or floor nosing of a structure |
DE9005046U1 (en) * | 1990-05-03 | 1991-08-29 | Josef Hain Gmbh & Co Kg, 83561 Ramerberg | Device for thermally insulating a window or door reveal |
DE4409782C2 (en) * | 1994-03-22 | 1996-02-08 | Dieter Schinhofen | Lost formwork for concreting an upper end of a storey or knee wall |
CH688417A5 (en) * | 1995-10-25 | 1997-09-15 | Pecon Ag | Formwork element. |
DE29715541U1 (en) * | 1997-08-29 | 1999-01-07 | Bösch, Berndt, Lustenau | Lost formwork element |
FR2802956B1 (en) * | 1999-12-22 | 2002-08-23 | Claude Letulle | CONSTRUCTION ELEMENT, ESPECIALLY EDGE ELEMENT FOR THE PERIPHERAL FORMWORK OF A CONCRETE SLAB |
DE102018110280A1 (en) * | 2018-04-27 | 2019-10-31 | Holzmann Gmbh & Co. Kg | Insulated ring beam element with brick panel |
CN112376905B (en) * | 2020-11-27 | 2022-06-10 | 腾达建设集团股份有限公司 | Connecting mechanism of stand column steel formwork |
Family Cites Families (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US1517244A (en) * | 1922-10-12 | 1924-12-02 | John J Sullivan | Method of building construction |
DE2005642A1 (en) * | 1970-02-07 | 1971-08-12 | Buchmann, Rudolf C , 6800 Mannheim Feudenheim | Assembly components for the production of hollow or clad concrete walls |
DE2138920A1 (en) * | 1971-08-04 | 1973-02-15 | Willi Holzapfel | BUILDING PLATE FOR THE CONSTRUCTION INDUSTRY |
US3722849A (en) * | 1971-11-05 | 1973-03-27 | W Luyben | Concrete form clip |
DE2815080A1 (en) * | 1978-04-07 | 1979-10-18 | Vielberth Elementbeton Kg | SCARF BODY |
AT354686B (en) * | 1978-08-09 | 1980-01-25 | Kirchner Franz Dipl Ing | SPACERS |
FR2437473A1 (en) * | 1978-09-27 | 1980-04-25 | Grosjean Claude | Composite exterior wall for building - has insulating panels and cast-in-situ concrete infill on wooden framework |
-
1980
- 1980-05-05 DE DE19803017192 patent/DE3017192A1/en not_active Withdrawn
-
1981
- 1981-02-04 DE DE8181100779T patent/DE3160985D1/en not_active Expired
- 1981-02-04 AT AT81100779T patent/ATE4829T1/en active
- 1981-02-04 EP EP81100779A patent/EP0039384B1/en not_active Expired
Also Published As
Publication number | Publication date |
---|---|
DE3160985D1 (en) | 1983-11-03 |
EP0039384A2 (en) | 1981-11-11 |
ATE4829T1 (en) | 1983-10-15 |
DE3017192A1 (en) | 1981-11-12 |
EP0039384A3 (en) | 1981-12-30 |
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