EP0715039B1 - Shuttering element - Google Patents
Shuttering element Download PDFInfo
- Publication number
- EP0715039B1 EP0715039B1 EP95117597A EP95117597A EP0715039B1 EP 0715039 B1 EP0715039 B1 EP 0715039B1 EP 95117597 A EP95117597 A EP 95117597A EP 95117597 A EP95117597 A EP 95117597A EP 0715039 B1 EP0715039 B1 EP 0715039B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- shuttering
- support
- wall
- transverse
- rods
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
- 238000009416 shuttering Methods 0.000 title claims abstract description 40
- 230000002787 reinforcement Effects 0.000 claims abstract description 31
- 238000010276 construction Methods 0.000 claims description 15
- 239000000463 material Substances 0.000 claims description 14
- 238000004519 manufacturing process Methods 0.000 claims description 12
- 239000002184 metal Substances 0.000 claims description 8
- 238000000034 method Methods 0.000 claims description 7
- 125000006850 spacer group Chemical group 0.000 claims description 4
- 229910000831 Steel Inorganic materials 0.000 claims 2
- 239000010959 steel Substances 0.000 claims 2
- 238000011065 in-situ storage Methods 0.000 claims 1
- 239000011150 reinforced concrete Substances 0.000 abstract 1
- 238000009415 formwork Methods 0.000 description 76
- 239000006228 supernatant Substances 0.000 description 5
- 238000005260 corrosion Methods 0.000 description 2
- 230000007797 corrosion Effects 0.000 description 2
- 239000002985 plastic film Substances 0.000 description 2
- 229920006255 plastic film Polymers 0.000 description 2
- 230000003014 reinforcing effect Effects 0.000 description 2
- 229910000746 Structural steel Inorganic materials 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 235000012773 waffles Nutrition 0.000 description 1
Images
Classifications
-
- 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
- E04G11/36—Forms, shutterings, or falsework for making walls, floors, ceilings, or roofs for floors, ceilings, or roofs of plane or curved surfaces end formpanels for floor shutterings
- E04G11/365—Stop-end shutterings
Definitions
- the invention relates to a formwork element in Preamble of claim 1 explained type.
- Such a formwork element is known from EP 93 697 A2.
- the known formwork element contains a formwork wall from a profiled, perforated Material, in particular an expanded metal or Sheet with profiled or partially permeable Surface.
- the formwork wall is made with the help of a column in the form of a plurality of triangular wooden wedges set up.
- the formwork wall must be attached to the wooden wedges and the wooden wedges are nailed to the lower formwork, which is quite expensive.
- the top reinforcement is on pre-punched points, pushed through the formwork wall, with the wooden wedges over the top edge of the formwork wall protrude.
- the formwork wall is therefore the only means the reinforcement at a predetermined distance from each other and to the lower formwork or to the top of the concrete element hold.
- EP 586 867 A1 describes a shuttering element for shuttering end faces two adjacent concrete parts.
- the shuttering element contains a formwork wall, the at least one of its edges in a concrete cover strip is embedded.
- the concrete cover strip should Keep the formwork wall at a distance from the surface of the concrete part so that none Corrosion takes place.
- the concrete cover strip on the surface facing the concrete part Top rounded so that it is as little as possible on the surface of the concrete part appears.
- the shuttering element is not able to stand on its own and must be carefully attached to the entire formwork in the correct position.
- the invention is therefore based on the object, an inexpensive producible stable, as well as inexpensive and easy to install Formwork element for formwork of connecting surfaces the production of components from concrete as well as an inexpensive and to provide a simple process for its manufacture.
- the formwork element according to the invention is easy to manufacture and can be used immediately without further preparatory work. Since the formwork element including the support and formwork wall as lost formwork is formed in the finished concrete remains, the concrete can be poured on from both sides, without making any changes to the formwork must be made. Furthermore, the spatial stiffens Rod construction the surface material of the formwork wall like this far that the reinforcing bars also when pouring the concrete, i.e. under an additional load, safely at their predetermined Place can be held.
- the protrusion of the formwork wall Of particular advantage over the upper edge of the support, as the column is embedded in the concrete without further precautions can be and does not protrude on the top of the component, where it would be exposed to corrosion.
- the support on a lower reinforcement of the concrete slab or concrete element be, due to the protrusion of the formwork wall concrete passing through the edge of the stand between the lower reinforcement and the lower formwork prevented becomes.
- the support in its full height as a spacer between an upper reinforcement and the lower formwork or between an upper and serve a lower reinforcement.
- Claim 4 describes a particularly preferred embodiment the rod construction used for the support.
- Claim 5 describes a particularly preferred arrangement of the Formwork wall, in which the column is completely in the concrete is anchored and thus ensures a good connection.
- the support is particularly easy to manufacture if it is in accordance with Claim 6 from an A-shaped, flat grid mat consists.
- Claim 8 describes a particularly preferred sheet material for the formwork wall.
- Claim 9 describes a particularly preferred embodiment of the formwork element according to the invention.
- the object is further achieved by a method according to claim 10 solved.
- the method according to the invention can be carried out inexpensively and leads to a formwork element that despite simple and inexpensive manufacture one for use has sufficient stability.
- Fig. 1 shows a simultaneously as a spacer for reinforcement trained formwork element 1, the formwork wall 2 and a support 3, which together to form a lost formwork are connected, which remain in the concrete can.
- the formwork wall 2 consists of a perforated surface material, in the illustrated embodiment one Strips of expanded metal sheet as it is commercially available is.
- the support 3 consists of a spatial rod construction from cross bars 4 and longitudinal bars 5, which are in the manner of a Mesh mat are assembled.
- Cross and longitudinal bars 4, 5 consist of common structural steel bars, such as those used for reinforcement or for the production of reinforcement mesh in concrete construction are.
- the diameter and length of the rods 4, 5 can be according to the the intended use selected. Since in Fig. 1 the support 3 has an elongated shape, are as Cross bars 4 defines those bars that are transverse to Extend the longitudinal extent of the formwork wall 2 while longitudinal rods 5 are those rods that are parallel run to the longitudinal extent of the formwork wall 2.
- the support 3 is A-shaped, with a cross section in the shape of an isosceles triangle, with the legs of the triangle through the angled halves of the cross bars 4 be formed.
- the imaginary connecting line between the Triangular tips of all cross bars 4 of the support 3 form one Top edge 6.
- the free ends of all cross bars 4 of the support 3 lie in a common level 7. Those are preferred free ends of the cross bars 4 by one of the longitudinal bars 5 connected, and the upper edge 6 by a Longitudinal rod 5 formed or there are at least one or two longitudinal bars 5 near the upper edge 6.
- the formwork wall 2 covers the support 3 only on one side of the isosceles cross section and is there between the inside cross bars 4 and the outside longitudinal bars 5 attached.
- the formwork wall 2 is wider than half the length of the cross bars 4, each with an edge area the formwork wall 2 over the top edge 6 by one Amount a upwards and over the lower level 7 by an amount b protrudes downwards.
- the 2 shows the formwork element according to the invention 1 for shuttering a connection surface between two in succession construction sections to be concreted for producing a concrete slab or the like.
- the reinforcement layer 9 is designed as continuous reinforcement, which is characterized by both stretches of concrete to be poured one after the other.
- the Expanded material of the formwork wall 2 is bendable, so that the Reinforcement 9 is pressed into the supernatant b and the supernatant b then between the reinforcement bars of the reinforcement layer 9 extends downwards and the space between the Reinforcement layer 9 and the formwork 8 covered.
- an upper reinforcement layer 10 installed, which also as Reinforcing bars or reinforcement mats is formed through both concrete sections to be poured one after the other extends.
- the support 3 serves as the predetermined distance defining spacer between the two reinforcement layers 9 and 10.
- the reinforcement bars of the reinforcement layer 10 are also pressed into the formwork wall 2 and lie on one or more of the longitudinal bars 5 the support 3.
- either one of the Longitudinal rods 5 attached directly to the upper edge 6, or two Longitudinal bars 5, as shown in FIG. 2 extend on both sides parallel to the upper edge 6 and at a short distance from it.
- the Supernatant a can then be removed with one of the usual, removable Concrete cover strips 11 are covered when he not to the top of the concrete element, or at least to reach just below, so that leakage the concrete is avoided during the first construction phase. Then the first phase of construction from that side of the Formwork wall 2 ago, on which the cross bars 4 are located, shed. Any air can escape through the formwork wall 2 escape to the outside, so that almost the entire rod construction the support 3 is embedded in the first construction phase is. Concrete also passes through the perforated holes Formwork wall 2 through and forms on the other Side of the formwork wall 2 a rough surface that together with the external longitudinal bars 5 a good connection of the second concreting section.
- the formwork element 1 is manufactured by First, a flat formwork material shown in Fig. 3 1 'is produced.
- a flat formwork material shown in Fig. 3 1 'is produced.
- the formwork flat material 1 ' are first the cross bars 4, the longitudinal bars 5 and the formwork wall 2 in the desired dimensions cut, the dimensions of the rods 4, 5 be adjusted to the dimensions of the connection surface.
- the Formwork wall 2 from a strip of expanded metal sheet is cut to a length that corresponds to the length of the Longitudinal rods 5 corresponds.
- the width of the formwork wall 2 is greater than half by the sum of the supernatants a + b Length of the cross bars 4, i.e. their length between their free Ends and their center later forming the upper edge 6.
- the 4 are parallel to each other but in the right Cross and longitudinal bars aligned at an angle to each other with the interposition of the formwork wall 2 with the required Supernatants a, b placed on top of each other.
- the cross bars 4 and the longitudinal bars 5 in the area of the formwork wall 2 placed on the formwork wall 2, and in the area directly on top of each other without formwork wall.
- the cross and longitudinal bars 4, 5 on selected or all Crossing points connected together the connection in the area of the formwork wall 2 through the formwork wall 2 is carried out.
- the rods are preferred on the Crossing points welded together.
- the rod construction can also be used, for example, as a beam with longitudinal rods be formed by wavy or zigzag curved cross bars are interconnected.
- the Cross section of the support can be varied. So it can For example, also support the shape of a right-angled one Have triangles, so that the formwork wall 2 vertically stands. In this case, of course, the later is then Upper edge no longer in the middle of the crossbars, but offset in the middle between their two free ends. Finally the lower overhang of the formwork wall can be omitted, if the formwork element is not on a reinforcement layer but placed directly on the under formwork becomes.
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- Architecture (AREA)
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- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Forms Removed On Construction Sites Or Auxiliary Members Thereof (AREA)
- Saccharide Compounds (AREA)
- Bipolar Transistors (AREA)
- Crystals, And After-Treatments Of Crystals (AREA)
Abstract
Description
Die Erfindung bezieht sich auf ein Schalungselement der im Oberbegriff von Anspruch 1 erläuterten Art.The invention relates to a formwork element in Preamble of claim 1 explained type.
Ein derartiges Schalungselement ist aus der EP 93 697 A2 bekannt. Das bekannte Schalungselement enthält eine Schalungswandung aus einem profilierten, mit Durchbrechungen versehenen Material, insbesondere einem Streckmetall oder einem Blech mit profilierter oder teilweise durchlässig gemachter Oberfläche. Die Schalungswandung wird mit Hilfe einer Stütze in Form einer Mehrzahl von dreieckig zugeschnittenen Holzkeilen aufgestellt. Dabei muß die Schalungswandung an die Holzkeile und die Holzkeile auf die untere Schalung genagelt werden, was recht aufwendig ist. Die obere Bewehrung wird, an vorgestanzten Stellen, durch die Schalungswandung gestoßen, wobei die Holzkeile über die obere Kante der Schalungswandung hinausragen. Die Schalungswandung ist somit das einzige Mittel, die Bewehrung im vorbestimmten Abstand zueinander und zur unteren Schalung bzw. zur Oberseite des Betonelementes zu halten. Da sie relativ dünn ist, kann sie sich unter dem Druck der Bewehrung während des Betonierens verformen, so daß sich der Abstand zwischen den Bewehrungen ändern kann. Nach dem Betonieren des ersten Betonierabschnittes müssen die Holzkeile entfernt werden, um den zweiten Betonierabschnitt betonieren zu können, was recht aufwendig ist. Such a formwork element is known from EP 93 697 A2. The known formwork element contains a formwork wall from a profiled, perforated Material, in particular an expanded metal or Sheet with profiled or partially permeable Surface. The formwork wall is made with the help of a column in the form of a plurality of triangular wooden wedges set up. The formwork wall must be attached to the wooden wedges and the wooden wedges are nailed to the lower formwork, which is quite expensive. The top reinforcement is on pre-punched points, pushed through the formwork wall, with the wooden wedges over the top edge of the formwork wall protrude. The formwork wall is therefore the only means the reinforcement at a predetermined distance from each other and to the lower formwork or to the top of the concrete element hold. Since it is relatively thin, it can be under the Deform the pressure of the reinforcement during concreting so that the distance between the reinforcements can change. To concreting the first concreting section Wooden wedges are removed to the second concreting section to be able to concrete, which is quite complex.
Die EP 586 867 A1 beschreibt ein Abschalelement zum Abschalen von Stirnflächen zweier aneinandergrenzender Betonteile. Das Abschalelement enthält eine Schalungswandung, die an wenigstens einer ihrer Randkanten in eine Betondeckungsleiste eingebettet ist. Die Betondeckungsleiste soll die, meist aus Metall bestehende, Schalungswandung im Abstand zur Oberfläche des Betonteils halten, damit keine Korrosion stattfindet. Um die Gefahr einer Fugen- oder Rißbildung herabzusetzen, ist die Betondeckungsleiste an der der Oberfläche des Betonteils zugewandten Oberseite gerundet, so daß sie so wenig wie möglich an der Oberfläche des Betonteils erscheint. Dadurch ist jedoch das Abschalelement nicht selbständig standfähig und muß in der korrekten Position sorgfältig in der Gesamtschalung befestigt werden. EP 586 867 A1 describes a shuttering element for shuttering end faces two adjacent concrete parts. The shuttering element contains a formwork wall, the at least one of its edges in a concrete cover strip is embedded. The concrete cover strip should Keep the formwork wall at a distance from the surface of the concrete part so that none Corrosion takes place. To reduce the risk of gaps or cracks, is the concrete cover strip on the surface facing the concrete part Top rounded so that it is as little as possible on the surface of the concrete part appears. As a result, however, the shuttering element is not able to stand on its own and must be carefully attached to the entire formwork in the correct position.
Aus der DE 34 05 187 A1 ist ein Schalungselement zum Abschalen von Randbereichen von Betonplatten bekannt, das in einem Abziehbalken integriert ist. Der Abziehbalken ist notwendig, wenn die Oberseite einer Betonplatte nach dem Vergießen glatt abgezogen werden muß. Aber auch dann sind Abziehbalken nur parallel zur Abziehrichtung und in einem der Länge des Abziehgerätes entsprechendem Abstand notwendig. Zum Abschalen von Anschlußflächen mit dem bekannten Schalungselement müßten somit zusätzliche Abziehbalken eingesetzt werden, die an sich nicht notwendig sind. Da die Abziehbalken einen gewissen Herstellungsaufwand erfordern, würde damit die Herstellung der Betonplatte verteuert. Außerdem wird ein mit Kunststoffolie bespanntes Gitterwerk als Schalungwandung eingesetzt, was nur für bestimmte Anschlußflächen möglich ist. Die Bewehrung wird entweder durch die Kunststoffolie gestoßen oder in den Abziehbalken integriert. Die Kunststoffolie ist jedoch nicht steif genug, um die Bewehrung im vorbestimmten Abstand zu halten. Eine integrierte Bewehrung kann nur kurz sein, da andernfalls das gesamte Schalungselement viel zu sperrig würde.DE 34 05 187 A1 describes a formwork element for shuttering known from edge areas of concrete slabs, which in one Peel bar is integrated. The pull bar is necessary if the top of a concrete slab is smooth after grouting must be deducted. But even then, stripping bars are only parallel to the pulling direction and in one of the length of the puller appropriate distance necessary. For shuttering of pads with the known formwork element would have thus additional scraper bars are used, which in themselves are not necessary. Since the stripping bar requires a certain amount of production would require the manufacture of the Concrete slab expensive. It also comes with plastic wrap Covered lattice used as formwork wall, which only is possible for certain pads. The reinforcement is either pushed through the plastic film or into the puller bar integrated. However, the plastic film is not stiff enough to support the reinforcement at a predetermined distance hold. Integrated reinforcement can only be short, otherwise the entire formwork element would be too bulky.
Der Erfindung liegt somit die Aufgabe zugrunde, ein preisgünstig herstellbares standfestes, sowie kostengünstig und einfach einzubauendes Schalungselement zu Abschalen von Anschlußflächen bei der Herstellung von Bauelementen aus Beton sowie ein kostengünstiges und einfaches Verfahren zu seiner Herstellung bereitzustellen.The invention is therefore based on the object, an inexpensive producible stable, as well as inexpensive and easy to install Formwork element for formwork of connecting surfaces the production of components from concrete as well as an inexpensive and to provide a simple process for its manufacture.
Die Aufgabe wird durch das in Anspruch 1 beschriebene Schalungselement gelöst.The object is achieved by the formwork element described in claim 1 solved.
Das erfindungsgemäße Schalungselement ist einfach herstellbar und kann ohne weitere Vorarbeiten sofort eingesetzt werden. Da das Schalungselement samt Stütz- und Schalungswandung als verlorene Schalung ausgebildet ist, die im fertigen Beton verbleibt, kann der Beton von beiden Seiten angegossen werden, ohne daß voher an der Schalung irgendeine Veränderung vorgenommen werden muß. Weiterhin versteift die räumliche Stabkonstruktion das Flächenmaterial der Schalungswandung so weit, daß die Bewehrungsstäbe auch beim Eingießen des Betons, d.h. unter einer zusätzlichen Belastung, sicher an ihrer vorbestimmten Stelle gehalten werden können. Dabei ist der Überstand der Schalungswandung über die Oberkante der Stütze von besonderem Vorteil, da dadurch die Stütze ohne weitere Vorkehrungen in den Beton eingebettet werden kann und nicht an der Oberseite des Bauteiles vorsteht, wo sie einem Korrosionsangriff ausgesetzt wäre.The formwork element according to the invention is easy to manufacture and can be used immediately without further preparatory work. Since the formwork element including the support and formwork wall as lost formwork is formed in the finished concrete remains, the concrete can be poured on from both sides, without making any changes to the formwork must be made. Furthermore, the spatial stiffens Rod construction the surface material of the formwork wall like this far that the reinforcing bars also when pouring the concrete, i.e. under an additional load, safely at their predetermined Place can be held. Here is the protrusion of the formwork wall Of particular advantage over the upper edge of the support, as the column is embedded in the concrete without further precautions can be and does not protrude on the top of the component, where it would be exposed to corrosion.
In der Ausgestaltung nach Anspruch 2 kann die Stütze auf eine
untere Bewehrung der Betonplatte oder des Betonelementes aufgesetzt
werden, wobei durch den Überstand der Schalungswandung
über die Standkante ein Durchtreten von Beton zwischen
der unteren Bewehrung und der unteren Schalung verhindert
wird.In the embodiment according to
In der Ausgestaltung nach Anspruch 3 kann die Stütze in ihrer
vollen Höhe als Abstandshalter zwischen einer oberen Bewehrung
und der unteren Schalung bzw. zwischen einer oberen und
einer unteren Bewehrung dienen.In the embodiment according to
Anspruch 4 beschreibt eine besonders bevorzugte Ausgestaltung
der für die Stütze verwendeten Stabkonstruktion.
Anspruch 5 beschreibt eine besonders bevorzugte Anordnung der
Schalungswandung, bei der die Stütze vollständig im Beton
verankert wird und somit eine gute Anbindung gewährleistet.
Besonders einfach herstellbar ist die Stütze, wenn diese gemäß
Anspruch 6 aus einer A-förmig gebogenen, flächigen Gittermatte
besteht.The support is particularly easy to manufacture if it is in accordance with
Durch die Anordnung des perforierten Flächenmaterials der Schalungswandung zwischen den Quer- und den Längsstäben einer Gittermatte gemäß Anspruch 7 wird einerseits die Herstellung vereinfacht und andererseits das Flächenmaterial so weit versteift, daß auch ein relativ preisgünstiges Flächenmaterial mit an sich geringer Festigkeit einsetzbar ist.Due to the arrangement of the perforated surface material Formwork wall between the cross and longitudinal bars of one Lattice mat according to claim 7 is the one hand the production simplified and on the other hand stiffened the surface material so far, that also a relatively inexpensive sheet material can be used with low strength per se.
Anspruch 8 beschreibt ein besonders bevorzugtes Flächenmaterial
für die Schalungswandung.
Anspruch 9 beschreibt eine besonders bevorzugte Ausgestaltung
des erfindungsgemäßen Schalungselementes.
Die Aufgabe wird weiterhin durch ein Verfahren gemäß Anspruch 10 gelöst.The object is further achieved by a method according to claim 10 solved.
Das erfindungsgemäße Verfahren ist kostengünstig durchzuführen und führt zu einem Schalungselement, das trotz einfacher und preisgünstiger Herstellung eine für den Verwendungszweck ausreichende Stabilität aufweist.The method according to the invention can be carried out inexpensively and leads to a formwork element that despite simple and inexpensive manufacture one for use has sufficient stability.
Die Ansprüche 11 bis 13 beschreiben vorteilhafte Weiterbildungen
des erfindungsgemäßen Verfahrens.
Ein Ausführungsbeispiel der Erfindung wird nachfolgend anhand der Zeichnungen näher erläutert. Es zeigen:
- Fig. 1
- eine perspektivische Ansicht eines erfindungsgemäßen Schalungselementes,
- Fig. 2
- das Schalungselement aus Fig. 1, eingebaut in ein Betonbauelement, und
- Fig. 3
- das Schalungsflachmaterial zum Herstellen des Schalungselementes nach den Fig. 1 und 2.
- Fig. 1
- a perspective view of a formwork element according to the invention,
- Fig. 2
- 1, installed in a concrete building element, and
- Fig. 3
- the formwork flat material for producing the formwork element according to FIGS. 1 and 2.
Fig. 1 zeigt ein gleichzeitig als Abstandshalter für eine Bewehrung
ausgebildetes Schalungselement 1, das eine Schalungswandung
2 und eine Stütze 3 aufweist, die miteinander zu einer
verlorenen Schalung verbunden sind, die im Beton verbleiben
kann.Fig. 1 shows a simultaneously as a spacer for reinforcement
trained formwork element 1, the
Die Schalungswandung 2 besteht aus einem perforierten Flächenmaterial,
im dargestellten Ausführungsbeispiel einem
Streifen aus Streckmetallblech, wie es im Handel erhältlich
ist. Die Stütze 3 besteht aus einer räumlichen Stabkonstruktion
aus Querstäben 4 und Längsstäben 5, die in der Art einer
Gittermatte zusammengesetzt sind. Quer- und Längsstäbe 4, 5
bestehen aus üblichen Baustahlstäben, wie sie zur Bewehrung
bzw. zur Herstellung von Bewehrungsmatten im Betonbau üblich
sind. Durchmesser und Länge der Stäbe 4, 5 können nach dem
gewünschten Verwendungszweck ausgewählt werden. Da in Fig. 1
die Stütze 3 eine langgestreckte Form aufweist, sind als
Querstäbe 4 diejenigen Stäbe definiert, die sich quer zur
Längserstreckung der Schalungswandung 2 erstrecken, während
als Längsstäbe 5 diejenigen Stäbe bezeichnet werden, die parallel
zur Längserstreckung der Schalungswandung 2 verlaufen.
Die Stütze 3 ist A-förmig gebogen, mit einem Querschnitt in
der Form eines gleichschenkligen Dreiecks, wobei die Schenkel
des Dreiecks durch die abgewinkelten Hälften der Querstäbe 4
gebildet werden. Die imaginäre Verbindungslinie zwischen den
Dreiecksspitzen aller Querstäbe 4 der Stütze 3 bildet eine
Oberkante 6. Die freien Enden aller Querstäbe 4 der Stütze 3
liegen in einer gemeinsamen Ebene 7. Bevorzugt werden die
freien Enden der Querstäbe 4 durch jeweils einen der Längsstäbe
5 verbunden, und die Oberkante 6 wird durch einen
Längsstab 5 gebildet oder es befinden sich zumindest ein oder
zwei Längsstäbe 5 in der Nähe der Oberkante 6.The
Die Schalungswandung 2 bedeckt die Stütze 3 nur an einer Seite
des gleichschenkligen Querschnitts und ist dort zwischen
den innenliegenden Querstäben 4 und den außenliegenden Längsstäben
5 befestigt. Die Schalungswandung 2 ist breiter als
die halbe Länge der Querstäbe 4, wobei jeweils ein Randbereich
der Schalungswandung 2 über die Oberkante 6 um einen
Betrag a nach oben und über die untere Ebene 7 um einen Betrag
b nach unten vorsteht.The
Wie Fig. 2 zeigt, wird das erfindungsgemäße Schalungselement
1 zum Abschalen einer Anschlußfläche zwischen zwei nacheinander
zu betonierenden Bauabschnitten zum Herstellen einer Betonplatte
oder dgl., mit den in der Ebene 7 liegenden Längsstäben
5 bzw. den freien Enden der Querstäbe 4 auf eine im
Abstand zu einer unteren Schalung 8 oder dgl. angeordneten
Bewehrungsschicht 9 aufgesetzt. Die Bewehrungsschicht 9 ist
als durchgehende Bewehrung ausgebildet, die sich durch beide
nacheinander zu vergießende Betonabschnitte erstreckt. Das
Streckmaterial der Schalungswandung 2 ist biegbar, so daß die
Bewehrung 9 in den Überstand b eingedrückt wird und der Überstand
b dann zwischen den Bewehrungsstäben der Bewehrungsschicht
9 nach unten reicht und den Zwischenraum zwischen der
Bewehrungsschicht 9 und der Schalung 8 überdeckt. Dann wird
eine obere Bewehrungsschicht 10 eingebaut, die ebenfalls als
Bewehrungsstäbe oder Bewehrungsmatten ausgebildet ist, die
sich durch beide nacheinander zu vergießende Betonabschnitte
erstreckt. Dabei dient die Stütze 3 als den vorbestimmten Abstand
festlegender Abstandshalter zwischen den beiden Bewehrungsschichten
9 und 10. Die Bewehrungsstäbe der Bewehrungsschicht
10 werden ebenfalls in die Schalungswandung 2 eingdrückt
und liegen auf einem oder mehreren der Längsstäbe 5
der Stütze 3 auf. Zu diesem Zweck ist entweder einer der
Längsstäbe 5 direkt an der Oberkante 6 befestigt, oder zwei
Längsstäbe 5 erstrecken sich, wie Fig. 2 zeigt, beidseitig
parallel zur Oberkante 6 und im geringem Abstand dazu. Der
Überstand a kann anschließend mit einer der üblichen, entfernbaren
Betondeckungsleisten 11 abgedeckt werden, wenn er
nicht bis zur Oberkante des späteren Betonelementes, oder zumindest
bis knapp darunter reichen soll, so daß ein Auslaufen
des Betons während des ersten Bauabschnittes vermieden wird.
Danach wird der erste Bauabschnitt von derjenigen Seite der
Schalungswandung 2 her, an der sich die Querstäbe 4 befinden,
vergossen. Dabei kann eventuelle Luft durch die Schalungswandung
2 nach außen entweichen, so daß fast die gesamte Stabkonstruktion
der Stütze 3 in den ersten Bauabschnitt eingebettet
ist. Beton tritt auch durch die Löcher der perforierten
Schalungswandung 2 hindurch und bildet auf der anderen
Seite der Schalungswandung 2 eine rauhe Oberfläche, die zusammen
mit den außenliegenden Längsstäben 5 eine gute Anbindung
des zweiten Betonierabschnittes bewirkt.2 shows the formwork element according to the invention
1 for shuttering a connection surface between two in succession
construction sections to be concreted for producing a concrete slab
or the like., With the longitudinal bars lying in the plane 7
5 or the free ends of the cross bars 4 on a
Distance to a
Das erfindungsgemäße Schalungselement 1 wird hergestellt, indem
zunächst ein in Fig. 3 dargestelltes flaches Schalungsmaterial
1' hergestellt wird. Zur Herstellung des Schalungsflachmaterials
1' werden zunächst die Querstäbe 4, die Längsstäbe
5 und die Schalungswandung 2 in den gewünschten Abmessungen
zugeschnitten, wobei die Abmessungen der Stäbe 4, 5
auf die Abmessungen der Anschlußfläche abgestellt werden. Die
Schalungswandung 2 aus einem Streifen eines Streckmetallbleches
wird in einer Länge zugeschnitten, die der Länge der
Längsstäbe 5 entspricht. Die Breite der Schalungswandung 2
ist um die Summe der Überstände a + b größer als die halbe
Länge der Querstäbe 4, d.h. ihre Länge zwischen ihren freien
Enden und ihrer später die Oberkante 6 bildenden Mitte. Danach
werden die jeweils 4 parallel zueinander aber im rechten
Winkel gegeneinander versetzt ausgerichteten Quer- und Längsstäbe
unter Zwischenlage der Schalungswandung 2 mit den erforderlichen
Überständen a, b aufeinandergelegt. Dabei werden
die Querstäbe 4 und die Längsstäbe 5 im Bereich der Schalungswandung
2 auf die Schalungswandung 2 gelegt, und im Bereich
ohne Schalungswandung direkt aufeinander. Anschließend
werden die Quer- und Längsstäbe 4, 5 an ausgewählten oder allen
Kreuzungspunkten miteinander verbunden, wobei die Verbindung
im Bereich der Schalungswandung 2 durch die Schalungswandung
2 hindurch erfolgt. Bevorzugt werden die Stäbe an den
Kreuzungspunkten miteinander verschweißt. Dabei bleibt der
Bereich a, der sich über die die spätere Oberkante 6 bildende
Mitte der Querstäbe 4 hinaus erstreckt, ebenso wie der Bereich
b unverbunden. Anschließend werden alle Querstäbe 4 des
Schalungsflachmaterials 1 um ihre Mitte zur dreieckigen Stütze
3 durch Biegen abgewinkelt, wobei die Schalungswandung 2
im wesentlichen nicht gebogen wird, so daß insbesondere der
Überstand a in Verlängerung eines Schenkels des dreieckigen
Querschnittes der Stütze 3 verbleibt. The formwork element 1 according to the invention is manufactured by
First, a flat formwork material shown in Fig. 3
1 'is produced. For the production of the formwork flat material
1 'are first the cross bars 4, the
In Abwandlung des beschriebenen und gezeichneten Ausführungsbeispiels
kann anstelle des Streckmetalls für die Schalungswandung
ein anderes perforiertes Metall oder beispielsweise
ein Waffel- oder Noppenblech verwendet werden. Die Stabkonstruktion
kann beispielsweise auch als Stabträger mit Längsstäben
ausgebildet sein, die durch wellen- oder zick-zackförmig
gebogene Querstäbe miteinander verbunden sind. Der
Querschnitt der Stütze kann variiert werden. So kann die
Stütze beispielsweise auch die Form eines rechtwinkligen
Dreiecks aufweisen, so daß die Schalungswandung 2 vertikal
steht. Für diesen Fall liegt dann selbstverständlich die spätere
Oberkante nicht mehr in der Mitte der Querstäbe, sondern
mittig versetzt zwischen deren beiden freien Enden. Schließlich
kann der untere Überstand der Schalungswandung entfallen,
wenn das Schalungselement nicht auf eine Bewehrungsschicht
sondern direkt auf die unter Schalung aufgesetzt
wird.In a modification of the described and drawn embodiment
can replace the expanded metal for the formwork wall
another perforated metal or for example
a waffle or knobbed sheet can be used. The rod construction
can also be used, for example, as a beam with longitudinal rods
be formed by wavy or zigzag
curved cross bars are interconnected. The
Cross section of the support can be varied. So it can
For example, also support the shape of a right-angled one
Have triangles, so that the
Claims (13)
- Shuttering element (1) for shuttering interfaces during the manufacture of structural elements made of concrete which are provided with reinforcement, comprising a shuttering wall (2) and a support (3) for erecting the shuttering wall (2), characterized in that the support (3) and the shuttering wall (2) are combined to form in situ shuttering, wherein the support (3) is designed as a spacer for the reinforcement (10) and comprises a three-dimensional rod construction (4, 5), and that the shuttering wall (2) is fastened to the support (3) in such a way that it projects beyond the top edge (6) of the support (3).
- Shuttering element according to claim 1, characterized in that the support (3) comprises a base plane (7) for mounting on a reinforcement (9), and that the shuttering wall (2) projects beyond the base plane (7).
- Shuttering element according to claim 1 or 2, characterized in that at least one rod (5) of the rod construction is provided in the region of the top edge (6) of the support.
- Shuttering element according to one of claims 1 to 3, characterized in that the rod construction of the support (3) has a cross section in the shape of an isosceles triangle.
- Shuttering element according to one of claims 1 to 4, characterized in that the shuttering wall (2) is provided only at one side of the support (3).
- Shuttering element according to one of claims 1 to 5, characterized in that the support (3) comprises a two-dimensional lattice of intersecting transverse and longitudinal rods (4, 5), which is bent into an A-shape.
- Shuttering element according to one of claims 1 to 6, characterized in that the shuttering wall (2) is disposed between rods (4, 5) of the rod construction of the support (3), in particular between the transverse and the longitudinal rods (4, 5) of the lattice.
- Shuttering element according to one of claims 1 to 7, characterized in that the shuttering wall (2) comprises a perforated material, in particular an expanded metal.
- Shuttering element according to one of claims 1 to 8, characterized in that the shuttering wall (2) comprises an expanded metal, which is disposed between the steel transverse and longitudinal rods (4, 5) of a lattice, which forms a triangular support (3), in such a way that the shuttering wall (2) covers one side of the triangular support (3) and projects with a marginal region (a) beyond the top edge (6), which extends through the apex of the triangular cross section.
- Method of manufacturing a shuttering element (1) for shuttering interfaces in concrete construction, whereby a flat shuttering material (1') is first manufactured in that a shuttering wall (2) is disposed and fastened between transverse and longitudinal rods (4, 5) of a lattice in such a way that the shuttering wall (2) only partially covers the transverse rods (4) and at least one marginal region (a) of the shuttering wall (2) remains unconnected to the transverse rods (4), and that the transverse rods (4) in the unconnected marginal region (a), in order to form a support (3) having a top edge (6), are then bent at an angle in such a way that the marginal region (a) projects beyond the top edge (6).
- Method according to claim 10, characterized in that the shuttering wall (2) remains disposed so as to project beyond the middle of the transverse rods (4) and unconnected on the far side of the middle, and that the transverse rods (4) are bent in their middle to form a support (3) having a cross section in the shape of an isosceles triangle.
- Method according to claim 10 or 11, characterized in that the shuttering wall (2) is disposed so as to project beyond the ends of the transverse rods (4).
- Method according to one of claims 10 to 12, characterized in that the shuttering wall (2) is made of expanded metal and the transverse and longitudinal rods (4, 5) are made of steel and that the transverse and longitudinal rods (4, 5) are welded together at their points of intersection while including the shuttering wall (2) outside of the marginal region (a).
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE4442639A DE4442639A1 (en) | 1994-11-30 | 1994-11-30 | Formwork element |
| DE4442639 | 1994-11-30 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP0715039A1 EP0715039A1 (en) | 1996-06-05 |
| EP0715039B1 true EP0715039B1 (en) | 2000-05-03 |
Family
ID=6534558
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP95117597A Expired - Lifetime EP0715039B1 (en) | 1994-11-30 | 1995-11-08 | Shuttering element |
Country Status (5)
| Country | Link |
|---|---|
| EP (1) | EP0715039B1 (en) |
| AT (1) | ATE192530T1 (en) |
| DE (2) | DE4442639A1 (en) |
| ES (1) | ES2147814T3 (en) |
| PT (1) | PT715039E (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE29613627U1 (en) * | 1996-08-07 | 1996-09-26 | Degen, Paul, 77830 Bühlertal | Multi-purpose spacer for concrete construction |
| EP1132545B1 (en) * | 2000-03-09 | 2008-12-31 | Willibald Fischer | Shuttering material |
| DE10037193C2 (en) * | 2000-03-09 | 2003-08-28 | Willibald Fischer | formwork |
| DE202009005388U1 (en) | 2009-04-08 | 2009-06-04 | Fwr Solutions Gmbh | formwork |
| DE202009015679U1 (en) | 2009-12-01 | 2011-04-14 | Peca - Verbundtechnik Gmbh | Shuttering element for concrete slabs |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1188617B (en) * | 1961-12-22 | 1965-03-11 | Gerhard Ritzerfeld | Rotary printing machine with a counter-pressure element and a printing forme cylinder on which part of the printing forme is fixed and another part is arranged such that it can be moved in the circumferential direction and can be advanced line by line |
| DE3361613D1 (en) | 1982-04-21 | 1986-02-06 | Kurt Stauffer | Piston pump for liquids |
| DE3405187C2 (en) * | 1983-10-28 | 1995-07-27 | Carl Georg & Sohn Gmbh Co Kg | Peel bar |
| DE9005482U1 (en) * | 1990-05-14 | 1991-09-12 | Fischer, Willibald, 8312 Dingolfing | Formwork panel |
| DE9206140U1 (en) * | 1992-05-07 | 1993-09-09 | Peca-Verbundtechnik Gmbh, 84130 Dingolfing | formwork |
| EP0586867A1 (en) * | 1992-09-08 | 1994-03-16 | Peca-Verbundtechnik Gmbh | End shuttering |
-
1994
- 1994-11-30 DE DE4442639A patent/DE4442639A1/en not_active Ceased
-
1995
- 1995-11-08 AT AT95117597T patent/ATE192530T1/en active
- 1995-11-08 PT PT95117597T patent/PT715039E/en unknown
- 1995-11-08 DE DE59508263T patent/DE59508263D1/en not_active Expired - Lifetime
- 1995-11-08 ES ES95117597T patent/ES2147814T3/en not_active Expired - Lifetime
- 1995-11-08 EP EP95117597A patent/EP0715039B1/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| DE59508263D1 (en) | 2000-06-08 |
| ES2147814T3 (en) | 2000-10-01 |
| ATE192530T1 (en) | 2000-05-15 |
| EP0715039A1 (en) | 1996-06-05 |
| DE4442639A1 (en) | 1996-06-13 |
| PT715039E (en) | 2000-10-31 |
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