EP0560306B1 - Shuttering - Google Patents

Shuttering Download PDF

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Publication number
EP0560306B1
EP0560306B1 EP93103793A EP93103793A EP0560306B1 EP 0560306 B1 EP0560306 B1 EP 0560306B1 EP 93103793 A EP93103793 A EP 93103793A EP 93103793 A EP93103793 A EP 93103793A EP 0560306 B1 EP0560306 B1 EP 0560306B1
Authority
EP
European Patent Office
Prior art keywords
formwork
bars
metal panel
shuttering
expanded
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
Application number
EP93103793A
Other languages
German (de)
French (fr)
Other versions
EP0560306A1 (en
Inventor
Willibald Fischer
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
PECA-VERBUNDTECHNIK GmbH
Original Assignee
PECA-VERBUNDTECHNIK GmbH
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Publication date
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Publication of EP0560306A1 publication Critical patent/EP0560306A1/en
Application granted granted Critical
Publication of EP0560306B1 publication Critical patent/EP0560306B1/en
Anticipated expiration legal-status Critical
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    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
    • E04G11/00—Forms, shutterings, or falsework for making walls, floors, ceilings, or roofs
    • E04G11/06—Forms, shutterings, or falsework for making walls, floors, ceilings, or roofs for walls, e.g. curved end panels for wall shutterings; filler elements for wall shutterings; shutterings for vertical ducts
    • E04G11/08—Forms, which are completely dismantled after setting of the concrete and re-built for next pouring
    • E04G11/085—End form panels for walls
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
    • E04G11/00—Forms, shutterings, or falsework for making walls, floors, ceilings, or roofs
    • E04G11/36—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 for shuttering the end faces of two adjacent component sections made of concrete of the type explained in the preamble of claim 1.
  • Such formwork is known from DE-AS 1 259 546.
  • Two strips of expanded metal are used for the known formwork, between which a joint seal is fastened by means of L-shaped intermediate pieces. If reinforcement is required through both component sections, reinforcement bars are pushed through the expanded metal in the longitudinal direction of the component and across the formwork.
  • these reinforcing bars require correct work or a holding structure in order to keep them at a predetermined distance from one another and in their predetermined position in the component.
  • the invention has for its object to provide a formwork that allows a less expensive arrangement of the reinforcement.
  • the inventive design of the formwork which projects with its free end edges through the reinforcement, makes it possible to use a mesh mat as a continuous reinforcement, in which the reinforcement bars are at their predetermined position and at a predetermined distance from one another remain. At the same time, concrete is prevented from flowing out between the shorter formwork walls and the reinforcement. Finally, the expanded metal is given sufficient stability by welded-on transverse and longitudinal bars, so that the additional hold caused by the pierced reinforcing bars is no longer necessary.
  • the formwork according to the application is particularly suitable for shuttering joints that are to be bridged with a water barrier or a joint tape.
  • the measure according to claim 4 on the one hand facilitates the dimensioning of the passage of the expanded metal through the level of the reinforcement, on the other hand the reinforcement can, if desired, be welded to these metal bars.
  • a first, already cast component section 1 made of concrete is shown in section from the FIG. A wall is shown.
  • the lateral surfaces 1a and 1b of the component sections are delimited by conventional formwork 2a and 2b.
  • the end face 1c of the first component section 1, to which a second component section (not shown) is to be connected, is delimited by a formwork 3 provided with a conventional toothing groove, which consists of two rigid formwork panels 3a, 3b as lost formwork a metal strip 4 is welded in as a water barrier.
  • Each of the strips 3a, 3b consists of an expanded metal 5 which is reinforced by cross-bars and longitudinal bars welded on in a lattice shape.
  • the longitudinal rods 6 extend approximately parallel to the water barrier 4 and the transverse rods 7 at right angles thereto.
  • the longitudinal bars 6 are welded on one side and the cross bars 7 on the other side of the expanded metal 5.
  • Each of the lattice mats 9a, 9b consists of cross bars 10 and longitudinal bars 11 crossed at right angles.
  • the lattice mats 9a, 9b are arranged in such a way that the longitudinal bars 11 point to the adjacent outer surface 1a, 1b and run parallel to it.
  • Each strip 3a, 3b of the formwork wall 3 projects with its free edge, which at this point either consists only of expanded metal 5 or, as shown, expanded metal 5 and the cross bars 7, in the direction of the surfaces 1a, 1b through the lattice mats 9a, 9b by the amount a so far that the free edges with the surface planes facing the surfaces 1a, 1b Essentially complete lattice mats 9a, 9b.
  • This free edge is then covered by the respective concrete cover strip 8a and 8b.
  • One of the metal bars 6 of each formwork strip running parallel to the cross bars 10 of the lattice mats 9a, 9b is at a distance from the free edge which corresponds approximately to the diameter of the longitudinal bars 11. If a firm connection is thus desired, this metal rod 6 can be welded to the mesh mat 9a, 9b. At the same time, it limits the penetration depth of the mesh mats 9a, 9b, so that the mesh mats 9a, 9b are held in their predetermined position on the one hand by the concrete cover strips 8a, 8b and on the other hand by the formwork 3.
  • the formwork material covers the free spaces within the lattice openings of the lattice mats 9a, 9b, so that no concrete can flow out at these locations if concrete is poured in on the side of the formwork shown in the drawing to produce the first component section 1.
  • a joint seal or the like can be provided instead of the welded-in water barrier 4.
  • the toothing groove can also be omitted.

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  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Mechanical Engineering (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Forms Removed On Construction Sites Or Auxiliary Members Thereof (AREA)
  • Saccharide Compounds (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)

Abstract

A description is given of a shuttering for shuttering end surfaces (1c) of two neighbouring concrete structural-part portions (1), having a shuttering wall (3) containing an expanded-metal panel (3a, 3b). Through the end surfaces (1c) of the two concrete-part portions (1) there extends a longitudinal reinforcement (9a, 9b) at a distance from, and essentially parallel to, an adjacent surface (1a, 1b) of the concrete part. In order to be able to produce a shuttering of this type more easily, the invention proposes to produce the shuttering wall (3) from an expanded-metal panel (5) which is reinforced by structural bars (6, 7) which are welded on in a grid-like manner, bars (6) running in the longitudinal direction being arranged on one side of the expanded-metal panel (5) and bars (7) running in the transverse direction being arranged on the other side, to use a grid mat as reinforcement (9a, 9b) and to extend the expanded-metal panel (5) through the grid mat (9a, 9b), to such an extent that a free edge terminates essentially in that surface plane of the grid mat (9a, 9b) which is directed towards the adjacent surface (1a, 1b) of the structural-part portion (1). <IMAGE>

Description

Die Erfindung bezieht sich auf eine Schalung zum Abschalen von Stirnflächen zweier aneinandergrenzender Bauteilabschnitte aus Beton der im Oberbegriff von Anspruch 1 erläuterten Art.The invention relates to a formwork for shuttering the end faces of two adjacent component sections made of concrete of the type explained in the preamble of claim 1.

Eine derartige Schalung ist aus der DE-AS 1 259 546 bekannt. Für die bekannte Schalung werden zwei Streifen aus Streckmetall verwendet, zwischen denen durch L-förmige Zwischenstücke eine Fugendichtung befestigt ist. Wird eine durch beide Bauteilabschnitte durchgehende Bewehrung gewünscht, so werden Bewehrungsstäbe in Längsrichtung des Bauteils und quer zur Schalung durch das Streckmetall hindurchgestoßen. Diese Bewehrungsstäbe erfordern jedoch korrektes Arbeiten bzw. ein Haltegerüst, um sie in vorbestimmten Abstand zueinander und in ihrer vorbestimmten Läge im Bauteil zu halten.Such formwork is known from DE-AS 1 259 546. Two strips of expanded metal are used for the known formwork, between which a joint seal is fastened by means of L-shaped intermediate pieces. If reinforcement is required through both component sections, reinforcement bars are pushed through the expanded metal in the longitudinal direction of the component and across the formwork. However, these reinforcing bars require correct work or a holding structure in order to keep them at a predetermined distance from one another and in their predetermined position in the component.

Der Erfindung liegt die Aufgabe zugrunde, eine Schalung bereitzustellen, die eine weniger aufwendige Anordnung der Bewehrung erlaubt.The invention has for its object to provide a formwork that allows a less expensive arrangement of the reinforcement.

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

Durch die erfindungsgemäße Ausgestaltung der Schalung, die mit ihren freien Endkanten durch die Bewehrung ragt, ist die Verwendung einer Gittermatte als durchgehende Bewehrung möglich, bei der die Bewehrungsstäbe an ihrer vorbestimmten Position und im vorbestimmten Abstand zueinander verbleiben. Gleichzeitig wird verhindert, daß zwischen den kürzeren Schalungswandungen und der Bewehrung Beton ausfließt. Schließlich erhält das Streckmetall durch aufgeschweißte Quer- und Längsstäbe eine genügende Stabilität, so daß der durch die durchgestoßenen Bewehrungsstäbe bewirkte, zusätzliche Halt nicht mehr erforderlich ist.The inventive design of the formwork, which projects with its free end edges through the reinforcement, makes it possible to use a mesh mat as a continuous reinforcement, in which the reinforcement bars are at their predetermined position and at a predetermined distance from one another remain. At the same time, concrete is prevented from flowing out between the shorter formwork walls and the reinforcement. Finally, the expanded metal is given sufficient stability by welded-on transverse and longitudinal bars, so that the additional hold caused by the pierced reinforcing bars is no longer necessary.

Gemäß den Ansprüchen 2 und 3 eignet sich die anmeldungsgemäße Schalung besonders zum Abschalen von Fugen, die mit einer Wassersperre bzw. einem Fugenband überbrückt werden sollen.According to claims 2 and 3, the formwork according to the application is particularly suitable for shuttering joints that are to be bridged with a water barrier or a joint tape.

Die Maßnahme nach Anspruch 4 erleichtert einerseits die Bemessung des Durchtritts des Streckmetalls durch die Ebene der Bewehrung, andererseits kann die Bewehrung, falls gewünscht, an diesen Metallstäben angeschweißt werden.The measure according to claim 4 on the one hand facilitates the dimensioning of the passage of the expanded metal through the level of the reinforcement, on the other hand the reinforcement can, if desired, be welded to these metal bars.

Ein Ausführungsbeispiel der Erfindung wird nachfolgend anhand der einzigen Zeichnung näher erläutert, die einen Querschnitt in Draufsicht auf einen mit der erfindungsgemäßen Schalung abgespalten Bauteilabschnitt zeigt.An embodiment of the invention is explained in more detail below with reference to the single drawing, which shows a cross section in plan view of a component section split off with the formwork according to the invention.

Aus der Fig. ist im Schnitt ein erster, bereits vergossener Bauteilabschnitt 1 aus Beton, dargestellt ist eine Wand, ersichtlich. Die seitlichen Oberflächen 1a und 1b der Bauteilabschnitte werden durch herkömmliche Schalungen 2a und 2b begrenzt. Die Stirnfläche 1c des ersten Bauteilabschnittes 1, an die sich ein zweiter, nicht dargestellter Bauteilabschnitt anschließen soll, wird durch eine mit einer üblichen Verzahnungsnut versehene Schalung 3 begrenzt, die aus zwei steifenförmigen Schalungstafeln 3a, 3b als verlorene Schalung besteht, zwischen die ein Metallstreifen 4 als Wassersperre eingeschweißt ist. Jeder der Streifen 3a, 3b besteht aus einem Streckmetall 5, das durch gitterförmig aufgeschweißte Quer- und Längsstäbe verstärkt ist. Dabei erstrecken sich die Längsstäbe 6 etwa parallel zur Wassersperre 4 und die Querstäbe 7 rechtwinklig dazu. Die Längsstäbe 6 sind auf einer Seite und die Querstäbe 7 auf der anderen Seite des Streckmetalles 5 angeschweißt.A first, already cast component section 1 made of concrete is shown in section from the FIG. A wall is shown. The lateral surfaces 1a and 1b of the component sections are delimited by conventional formwork 2a and 2b. The end face 1c of the first component section 1, to which a second component section (not shown) is to be connected, is delimited by a formwork 3 provided with a conventional toothing groove, which consists of two rigid formwork panels 3a, 3b as lost formwork a metal strip 4 is welded in as a water barrier. Each of the strips 3a, 3b consists of an expanded metal 5 which is reinforced by cross-bars and longitudinal bars welded on in a lattice shape. The longitudinal rods 6 extend approximately parallel to the water barrier 4 and the transverse rods 7 at right angles thereto. The longitudinal bars 6 are welded on one side and the cross bars 7 on the other side of the expanded metal 5.

Die Schalung 3 der Stirnfläche enthält weiterhin zwei Betondeckungsleisten 8a und 8b, die sich an die jeweils anliegende Schalungswand 2a und 2b der äußeren Oberflächen der Bauteilabschnitte anschließen und jeweils eine Bewehrungs-Gittermatte 9a und 9b in einem vorbestimmten Abstand zur Schalungswandung 2a bzw. 2b halten. Die Betondeckungsleisten befinden sich in Höhe der Schalung 3 für die Stirnflächen und erstrecken sich im wesentlichen jeweils zur Hälfte in den Bereich des ersten Bauteilabschnittes 1 und in den Bereich des noch zu erstellenden, zweiten Bauteilabschnittes.The formwork 3 of the end face also contains two concrete cover strips 8a and 8b, which connect to the respectively adjacent formwork wall 2a and 2b of the outer surfaces of the component sections and each hold a reinforcement mesh mat 9a and 9b at a predetermined distance from the formwork wall 2a or 2b. The concrete cover strips are located at the level of the formwork 3 for the end faces and each extend essentially halfway into the area of the first component section 1 and into the area of the second component section still to be created.

Jede der Gittermatten 9a, 9b besteht aus rechtwinklig gekreuzten Querstäben 10 und Längsstäben 11. Die Gittermatten 9a, 9b sind derart angeordnet, daß die Längsstäbe 11 zur jeweils anliegenden, äußeren Oberfläche 1a, 1b weisen und parallel zu dieser verlaufen.Each of the lattice mats 9a, 9b consists of cross bars 10 and longitudinal bars 11 crossed at right angles. The lattice mats 9a, 9b are arranged in such a way that the longitudinal bars 11 point to the adjacent outer surface 1a, 1b and run parallel to it.

Jeder Streifen 3a, 3b der Schalungswandung 3 ragt mit seiner freien Kante, die an dieser Stelle entweder nur aus Streckmetall 5 oder, wie dargestellt, aus Streckmetall 5 und den Querstäben 7 besteht, in Richtung auf die Oberflächen 1a, 1b durch die Gittermatten 9a, 9b um den Betrag a soweit hinein, daß die freien Kanten mit der den Oberflächen 1a, 1b zugewandten Oberflächenebenen der Gittermatten 9a, 9b im wesentlichen abschließen. Diese freie Kante wird dann durch die jeweils anliegende Betondeckungsleiste 8a und 8b abgedeckt.Each strip 3a, 3b of the formwork wall 3 projects with its free edge, which at this point either consists only of expanded metal 5 or, as shown, expanded metal 5 and the cross bars 7, in the direction of the surfaces 1a, 1b through the lattice mats 9a, 9b by the amount a so far that the free edges with the surface planes facing the surfaces 1a, 1b Essentially complete lattice mats 9a, 9b. This free edge is then covered by the respective concrete cover strip 8a and 8b.

Einer der parallel zu den Querstäben 10 der Gittermatten 9a, 9b verlaufenden Metallstäbe 6 jedes Schalungsstreifens weist einen Abstand zur freien Kante auf, der etwa dem Durchmesser der Längsstäbe 11 entspricht. Wird somit eine feste Verbindung gewünscht, so kann dieser Metallstab 6 an der Gittermatte 9a, 9b festgeschweißt werden. Gleichzeitig begrenzt er die Eindringtiefe der Gittermatten 9a, 9b, so daß die Gittermatten 9a, 9b einerseits durch die Betondeckungsleisten 8a, 8b und andererseits durch die Schalung 3 in ihrer vorbestimmten Position gehalten werden. Gleichzeitig überdeckt das Schalungsmaterial die Freiräume innerhalb der Gitteröffnungen der Gittermatten 9a, 9b, so daß an diesen Stellen kein Beton ausfließen kann, wenn auf der in der Zeichnung dargestellten Seite der Schalung zum Herstellen des ersten Bauteilabschnitts 1 Beton eingegossen wird.One of the metal bars 6 of each formwork strip running parallel to the cross bars 10 of the lattice mats 9a, 9b is at a distance from the free edge which corresponds approximately to the diameter of the longitudinal bars 11. If a firm connection is thus desired, this metal rod 6 can be welded to the mesh mat 9a, 9b. At the same time, it limits the penetration depth of the mesh mats 9a, 9b, so that the mesh mats 9a, 9b are held in their predetermined position on the one hand by the concrete cover strips 8a, 8b and on the other hand by the formwork 3. At the same time, the formwork material covers the free spaces within the lattice openings of the lattice mats 9a, 9b, so that no concrete can flow out at these locations if concrete is poured in on the side of the formwork shown in the drawing to produce the first component section 1.

In Abwandlung des beschriebenen und gezeichnten Ausführungsbeispiels kann anstelle der eingeschweißten Wassersperre 4 eine Fugendichtung oder dgl. vorgesehen werden. Auch die Verzahnungsnut kann entfallen.In a modification of the described and drawn exemplary embodiment, a joint seal or the like can be provided instead of the welded-in water barrier 4. The toothing groove can also be omitted.

Claims (4)

  1. Formwork for encasing front faces of two adjacent concrete construction unit sections, with a formwork wall comprising an expanded metal panel, wherein a longitudinal reinforcement extends through both front faces at a distance from and essentially parallel to an adjacent surface of the construction unit, characterised in that the formwork wall (3) consists of an expanded metal panel (5) which is reinforced by metal bars (6, 7) welded on in latticed fashion, with bars (6) which extend in the longitudinal direction being arranged on one side of the expanded metal panel (5) and bars (7) which extend in the transverse direction being arranged on the other side of this panel, that the reinforcement is a wire mesh (9a, 9b), and that the expanded metal panel (5) extends through the wire mesh (9a, 9b) and terminates with a free edge essentially in the surface plane of the wire mesh (9a, 9b) which faces the adjacent surface (1a, 1b) of the construction unit (1).
  2. Formwork according to claim 1, characterised in that a seal (4) is joined to the formwork wall (3).
  3. Formwork according to claim 2, characterised in that the seal is a water stop (4).
  4. Formwork according to one of claims 1 to 3, characterised in that a metal bar (6), which extends parallel to the free edge of the formwork wall (3), is welded to the expanded metal (5) at a distance from this free edge which corresponds approximately to the diameter of the bar (11) of the wire mesh (9a, 9b) which is closest to the respective adjacent, outer surface (1a, 1b).
EP93103793A 1992-03-11 1993-03-09 Shuttering Expired - Lifetime EP0560306B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE9203275U 1992-03-11
DE9203275U DE9203275U1 (en) 1992-03-11 1992-03-11

Publications (2)

Publication Number Publication Date
EP0560306A1 EP0560306A1 (en) 1993-09-15
EP0560306B1 true EP0560306B1 (en) 1996-06-19

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Family Applications (1)

Application Number Title Priority Date Filing Date
EP93103793A Expired - Lifetime EP0560306B1 (en) 1992-03-11 1993-03-09 Shuttering

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EP (1) EP0560306B1 (en)
AT (1) ATE139593T1 (en)
DE (2) DE9203275U1 (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19500937C2 (en) * 1995-01-14 1998-10-01 Sven Obernolte Shut-off element
DE19500939C2 (en) * 1995-01-14 1997-05-22 Sven Obernolte Formwork element
DE10335941B3 (en) 2003-08-04 2004-12-16 Peri Gmbh Mold system for forming a reinforcement junction from one concrete component to an adjacent concrete component or for termination of a concrete mold comprises four spacer profile
DE202008016759U1 (en) * 2008-12-18 2009-03-19 Fwr Solutions Gmbh An element

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1259546B (en) * 1964-11-24 1968-01-25 Georg Gautier Dipl Ing Joint insert for concrete structures
US3454255A (en) * 1965-09-27 1969-07-08 Andrew A Arquilla Bulkhead construction for concrete structures having continuous reinforcements
CH646751A5 (en) * 1980-05-01 1984-12-14 Pawe Ag USE OF PROFILE ELEMENTS OF STRETCH METAL OR SHEET WITH Roughened SURFACE IN CONCRETE CONSTRUCTION OF A CONSTRUCTION.
DE3302296C1 (en) * 1983-01-25 1984-08-23 Wilhelm Bläser GmbH & Co KG, 4618 Kamen Process and production line for the production of warpage mats for pit construction

Also Published As

Publication number Publication date
DE9203275U1 (en) 1993-07-08
ATE139593T1 (en) 1996-07-15
DE59302963D1 (en) 1996-07-25
EP0560306A1 (en) 1993-09-15

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