EP2137353B1 - Schalungselement - Google Patents

Schalungselement Download PDF

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Publication number
EP2137353B1
EP2137353B1 EP08735259.7A EP08735259A EP2137353B1 EP 2137353 B1 EP2137353 B1 EP 2137353B1 EP 08735259 A EP08735259 A EP 08735259A EP 2137353 B1 EP2137353 B1 EP 2137353B1
Authority
EP
European Patent Office
Prior art keywords
lattice
formwork element
foil
formwork
element according
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.)
Not-in-force
Application number
EP08735259.7A
Other languages
English (en)
French (fr)
Other versions
EP2137353A1 (de
Inventor
Sven Obernolte
Reent Obernolte
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.)
Individual
Original Assignee
Individual
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Priority claimed from DE202007005701U external-priority patent/DE202007005701U1/de
Priority claimed from DE202007009044U external-priority patent/DE202007009044U1/de
Priority claimed from DE202007008977U external-priority patent/DE202007008977U1/de
Application filed by Individual filed Critical Individual
Publication of EP2137353A1 publication Critical patent/EP2137353A1/de
Application granted granted Critical
Publication of EP2137353B1 publication Critical patent/EP2137353B1/de
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
    • E02D27/00—Foundations as substructures
    • E02D27/01—Flat foundations
    • E02D27/02—Flat foundations without substantial excavation
    • 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
    • E04G9/00—Forming or shuttering elements for general use
    • E04G9/02—Forming boards or similar elements
    • E04G9/06—Forming boards or similar elements the form surface being of metal
    • E04G9/065—Forming boards or similar elements the form surface being of metal the form surface being of wire mesh
    • 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
    • E04G9/00—Forming or shuttering elements for general use
    • E04G9/08—Forming boards or similar elements, which are collapsible, foldable, or able to be rolled up
    • 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
    • E04G9/00—Forming or shuttering elements for general use
    • E04G9/08—Forming boards or similar elements, which are collapsible, foldable, or able to be rolled up
    • E04G9/083—Forming boards or similar elements, which are collapsible, foldable, or able to be rolled up which are foldable

Definitions

  • the invention relates to a formwork element with a framed by a foil lattice, which consists of at least two separate grid mats, wherein the grid mats are enveloped by a common film and the film between the grid mats forms joints that allow folding the grid mats one above the other.
  • a formwork element which has a plurality of plates which are each individually wrapped by a film.
  • the foils that enclose the various plates are hinged together by flexible film nip.
  • Formwork elements in the form of a latticework are made DE 38 15 870 C1 known and are used for example for foundation formwork.
  • the lattice work is a reinforcing steel mat formed from crossed bars, which is either flat or bent or folded to a suitable formwork profile. This structural steel mat gives the formwork element the necessary mechanical strength.
  • the film is a stable shrink film, for example made of polyethylene, with which the lattice is shrunk, so that the grid openings are each closed by two layers of film and thus one obtains a flat, impermeable concrete for the formwork element.
  • the object of the invention is to provide a formwork element with a more stable joint construction.
  • the film connects the individual grid mats and at the same time serves as a hinge or joint, which allows the grid mats to be bent against each other.
  • the formwork element can be delivered to save space in a flat state and then folded on site in the respectively desired configuration.
  • the additional joint can be formed in different ways.
  • the joint is formed by the lattice bars running parallel to the hinge axis being held together by ring clips, tie wire or the like.
  • the grid bars extending at right angles to the hinge axis of the one grid mat are bent over to hooks which engage around a grid bar of the other grid mat running parallel to the hinge axis.
  • the hinge construction is housed protected within the film and is additionally stabilized by the film.
  • the formwork element according to the invention for permanent formwork such as foundation formwork
  • it can be achieved with the help of attached to one or more grid mats insulation layers in a simple way, a thermal and / or acoustic insulation.
  • the insulating layer may consist of conventional insulating materials, such as foam polystyrene. Rock wool or the like and can be formed for example by one or more insulating panels. Since the insulating layer is located inside the film and thus protected against moisture acting from the outside, also insulating materials come into consideration, which could not previously be used for lost formwork. In particular, open or closed cell materials or low density fiber materials may be used which have a particularly low thermal conductivity.
  • the formwork element and the formwork formed therefrom can be produced in a particularly simple manner.
  • a shuttering element is shown in a flat state, in which it can be delivered to the construction site to save space.
  • the formwork element has a latticework, which consists in the example shown of three separate grid mats 110, for example in the form of steel mesh mats, which are formed by cross-laid metal rods 112, 114.
  • the individual grid mats are connected by joints 118, which are shown here only schematically, tensile strength but pivotally connected to each other.
  • the entire structure of three closely spaced grid mats 110 and the joints 118 is surrounded by a shrink film 116.
  • the two foil layers at the joints 118 may also be welded or glued together to more securely hold the mesh mats in place.
  • Fig. 3 the grid mats 110 are folded over one another to form a compact structure. This is made possible by the hinges 118 and the corresponding, serving as hinges film sections are sufficiently wide.
  • Fig. 4 shows an embodiment in which on one side of the lattice work, an insulating layer is attached, which is formed in the example shown by three separate insulating panels 120, each of which abuts against one of the grid mats 110.
  • the shrink film 116 forms joints 118 which allow the formwork element to be bent at these locations. In this way you get z.
  • a U-shaped shuttering profile that can be used for example for a lost foundation formwork and at the same time forms a thermal insulation on the inside, the outside and the bottom of the foundation.
  • the relevant insulation board can also be omitted. It is also possible to arrange two insulating panels 120 so on two grid mats 110 that can be formed from an L-shaped formwork profile.
  • the insulation board may have any desired thickness for the purposes of thermal insulation, for example between 30 and 120 mm, and it may consist of any insulating materials, such as foam polystyrene. Rock wool and the like. Instead of a rigid insulation board, a flexible insulating layer of rock wool or other suitable material can be used. Likewise, the insulating layer can also be formed from a loose bed of granules or the like, which is held by the shrink film 116 in its shape.
  • a hinge 118b is formed by ring clips, ie by wire rings 126 which are held closed by a crimped metal clip 128 and the two metal bars parallel to each other and to the hinge axis at the edge of the grid mats between the metal bars 114 112 enclose.
  • the metal rods 112 may be held together by ring wires instead of by ring clips.
  • FIG. 6 Finally, Figure 11 shows a hinge 118c formed by extending the metal bars 114 of one of the two grid mats and bending them into hooks 130 which engage around the metal bar 112 of the adjacent grid mat. If the two parallel to the hinge axis extending metal rods 112 which form the edges of the grid mats are at a sufficiently small distance from each other, the hooks 130 may also be formed alternately on the metal bars 114 of both grid mats.

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  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Mining & Mineral Resources (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Paleontology (AREA)
  • General Engineering & Computer Science (AREA)
  • Forms Removed On Construction Sites Or Auxiliary Members Thereof (AREA)

Description

  • Die Erfindung betrifft ein Schalungselement mit einem von einer Folie umhüllten Gitterwerk, das aus mindestens zwei getrennten Gittermatten besteht, wobei die Gittermatten von einer gemeinsamen Folie umhüllt sind und die Folie zwischen den einzelnen Gittermatten Gelenke bildet, die es gestatten, die Gittermatten übereinander zu falten.
  • Aus GB-A-1 551 011 ist ein Schalungselement bekannt, das mehrere Platten aufweist, die jeweils einzeln von einer Folie umhüllt sind. Die Folien, die die verschiedenen Platten einschließen, sind durch flexible Folienstege gelenkig miteinander verbunden.
  • Schalungselemente in der Form eines Gitterwerks sind aus DE 38 15 870 C1 bekannt und werden beispielsweise für Fundamentschalungen eingesetzt. Bei dem Gitterwerk handelt es sich um eine aus gekreuzten Stäben gebildete Baustahlmatte, die entweder eben oder zu einem geeigneten Schalungsprofil gebogen oder gekantet ist. Diese Baustahlmatte gibt dem Schalungselement die notwendige mechanische Festigkeit. Bei der Folie handelt es sich um eine stabile Schrumpffolie, beispielsweise aus Polyethylen, mit der das Gitterwerk umschrumpft ist, so daß die Gitteröffnungen jeweils durch zwei Folienlagen verschlossen sind und man somit ein flächiges, für den Beton undurchlässiges Schalungselement erhält.
  • Aufgabe der Erfindung ist es, ein Schalungselement mit einer stabileren Gelenkkonstruktion zu schaffen.
  • Diese Aufgabe wird bei einem Schalungselement der eingangs genannten Art erfindungsgemäß dadurch gelöst, daß die Gittermatten zusätzlich durch ein von der Folie umgebenes Gelenk miteinander verbunden sind.
  • Die Folie verbindet die einzelnen Gittermatten und dient zugleich als Scharnier oder Gelenk, das es erlaubt, die Gittermatten gegeneinander abzuwinkeln. So kann das Schalungselement platzsparend in einem flachen Zustand angeliefert und dann auf der Baustelle in die jeweils gewünschte Konfiguration gefaltet werden.
  • Das zusätzliche Gelenk kann auf unterschiedliche Weisen gebildet werden.
  • Gemäß einer Ausführungsform wird das Gelenk dadurch gebildet, daß die parallel zur Scharnierachse verlaufenden Gitterstäbe durch Ringclips, Rödeldraht oder dergleichen zusammengehalten werden.
  • Gemäß noch einer weiteren Ausführungsform sind die rechtwinklig zur Scharnierachse verlaufenden Gitterstäbe der einen Gittermatte zu Haken umgebogen, die einen parallel zur Scharnierachse verlaufenden Gitterstab der anderen Gittermatte umgreifen.
  • In jedem Fall ist die Gelenkkonstruktion geschützt innerhalb der Folie untergebracht und wird durch die Folie zusätzlich stabilisiert.
  • Vorteilhafte Ausgestaltungen sind in den Unteransprüchen angegeben.
  • Wenn das erfindungsgemäße Schalungselement für verlorene Schalungen, beispielsweise Fundamentschalungen eingesetzt wird, so läßt sich mit Hilfe von an einer oder mehreren Gittermatten angebrachten Dämmschichten auf einfache Weise eine Wärme- und/oder Schalldämmung erreichen. Die Dämmschicht kann aus üblichen Dämmaterialien bestehen, beispielsweise aus Schaumpolystyrol. Steinwolle oder dergleichen und kann beispielsweise durch eine oder mehrere Dämmplatten gebildet werden. Da sich die Dämmschicht innerhalb der Folie befindet und somit gegen von außen einwirkende Feuchtigkeit geschützt ist, kommen auch Dämmaterialien in Betracht, die bisher nicht für verlorene Schalungen eingesetzt werden konnten. Insbesondere können offen- oder geschlossenzellige Materialien oder Fasermaterialien mit geringer Dichte verwendet werden, die einen besonders niedrigen Wärmeleitwert haben.
  • Da die Dämmschicht durch die Schrumpffolie in der gewünschten Position an dem Gitterwerk fixiert wird, lassen sich das Schalungselement und die daraus gebildete Schalung auf besonders einfache Weise herstellen.
  • Im folgenden werden Ausführungsbeispiele anhand der Zeichnung näher erläutert.
  • Es zeigen:
    • Fig. 1
    einen Schnitt durch ein erfindungsgemäßes Schalungselement in ebenem Zustand;
    Fig. 2
    das Schalungselement nach Fig. 1 in der Draufsicht;
    Fig. 3
    das Schalungselement nach Fig. 1 und 2 in einem zusammengefalteten Zustand;
    Fig. 4
    ein Schalungselement gemäß einem anderen Ausführüngsbeispiel; und
    Fig. 5 und 6
    unterschiedliche Gelenkkonstruktionen für die Schalungselemente.
  • In Fig. 1 und 2 ist ein Schalungselement in einem flachen Zustand gezeigt, in dem es platzsparend zur Baustelle angeliefert werden kann. Das Schalungselement weist ein Gitterwerk auf, das im gezeigten Beispiel aus drei getrennten Gittermatten 110 besteht, beispielsweise in der Form von Baustahlmatten, die durch kreuzweise verlegte Metallstäbe 112, 114 gebildet werden. Die einzelnen Gittermatten sind durch Gelenke 118, die hier nur schematisch dargestellt sind, zugfest aber schwenkbar miteinander verbunden. Das gesamte Gebilde aus aus drei in geringem Abstand nebeneinander liegenden Gittermatten 110 und den Gelenken 118 ist von einer Schrumpffolie 116 umhüllt. Wahlweise können die beiden Folienlagen an den Gelenken 118 auch miteinander verschweißt oder verklebt sein, um die Gittermatten noch sicherer in Position zu halten.
  • In Fig. 3 sind die Gittermatten 110 zu einem kompakten Gebilde übereinander gefaltet. Das wird dadurch ermöglicht, daß die Gelenke 118 und die entsprechenden, als Scharniere dienenden Folienabschnitte hinreichend breit ausgebildet sind.
  • Fig. 4 zeigt eine Ausführungsform, bei der auf einer Seite des Gitterwerkes eine Dämmschicht angebracht ist, die im gezeigten Beispiel durch drei voneinander getrennte Dämmplatten 120 gebildet wird, die jeweils an einer der Gittermatten 110 anliegen.
  • An den Fugen zwischen den einzelnen Dämmplatten 120 bildet die Schrumpffolie 116 Gelenke 118, die es erlauben, das Schalungselement an diesen Stellen zu knicken. Auf diese Weise erhält man z. B. ein U-förmiges Schalungsprofil, das beispielsweise für eine verlorene Fundamentschalung verwendet werden kann und zugleich eine Wärmedämmung an der Innenseite, der Außenseite und der Unterseite des Fundaments bildet.
  • Wenn eine Wärmedämmung an der Unterseite des Fundaments nicht erforderlich ist, kann die betreffende Dämmplatte auch fortgelassen werden. Ebenso ist es möglich, zwei Dämmplatten 120 so auf zwei Gittermatten 110 anzuordnen, daß sich daraus ein L-förmiges Schalungsprofil bilden läßt.
  • Die Dämmplatte kann jede für die Zwecke der Wärmedämmung gewünschte Dicke haben, beispielsweise zwischen 30 und 120 mm, und sie kann aus beliebigen Dämmaterialien bestehen, beispielsweise aus Schaumpolystyrol. Steinwolle und dergleichen. Anstelle einer steifen Dämmplatte kann auch eine flexible Dämmschicht aus Steinwolle oder einem anderen geeigneten Material verwendet werden. Ebenso kann die Dämmschicht auch aus einer losen Schüttung aus Granulat oder dergleichen gebildet werden, die durch die Schrumpffolie 116 in ihrer Form gehalten wird.
  • In Figuren 5 und 6 sind mögliche Ausgestaltungen der Gelenke 118 dargestellt.
  • In Figur 5 wird ein Gelenk 118b durch Ringclips gebildet, d. h. durch Drahtringe 126, die durch eine aufgequetschte Metallklammer 128 geschlossen gehalten werden und jeweils zwischen den Metallstäben 114 die beiden parallel zueinander und zur Gelenkachse am Rand der Gittermatten verlaufenden Metallstäbe 112 umschließen. Wahlweise können die Metallstäbe 112 statt durch Ringclips auch durch Rödeldraht zusammengehalten werden.
  • Figur 6 zeigt schließlich ein Gelenk 118c, das dadurch gebildet wird, daß die Metallstäbe 114 einer der beiden Gittermatten verlängert und zu Haken 130 gebogen sind, die den Metallstab 112 der benachbarten Gittermatte umgreifen. Wenn die beiden parallel zur Scharnierachse verlaufenden Metallstäbe 112, die die Ränder der Gittermatten bilden, in hinreichend geringem Abstand zueinander liegen, können die Haken 130 auch abwechselnd an den Metallstäben 114 beider Gittermatten gebildet sein.

Claims (5)

  1. Schalungselement mit einem von einer Folie (116) umhüllten Gitterwerk, das aus mindestens zwei getrennten Gittermatten (110) besteht, wobei die Gittermatten (110) von einer gemeinsamen Folie (116) umhüllt sind und die Folie (116) zwischen den einzelnen Gittermatten (110) Gelenke (118) bildet, die es gestatten, die Gittermatten (110) übereinander zu falten, dadurch gekennzeichnet, daß die Gittermatten (110) zusätzlich durch ein von der Folie (116) umgebenes Gelenk (118b; 118c) miteinander verbunden sind.
  2. Schalungselement nach Anspruch 1, dadurch gekennzeichnet, daß an mindestens einer der Gittermatten (110) innerhalb der Folienumhüllung eine Dämmschicht (120) angeordnet ist.
  3. Schalungselement nach Anspruch 1 oder 2, dadurch gekennzeichnet, daß das Gelenk (118b) durch einen Ringclip (126, 128) und/oder Rödeldraht gebildet wird.
  4. Schalungselement nach Anspruch 1 oder 2, dadurch gekennzeichnet, daß das Gelenk (118c) dadurch gebildet wird, daß verlängerte Enden der quer zur Scharnierachse verlaufenden Gitterstäbe (114) zu Haken (130) gebogen sind, die einen parallel zur Scharnierachse verlaufenden Gitterstab (112) der anderen Gittermatte (110) umgreifen.
  5. Schalungselement nach einem der vorstehenden Ansprüche, dadurch gekennzeichnet, daß die Folie (116) eine Schrumpffolie ist.
EP08735259.7A 2007-04-19 2008-04-15 Schalungselement Not-in-force EP2137353B1 (de)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
DE202007005701U DE202007005701U1 (de) 2007-04-19 2007-04-19 Schalungselement
DE202007009044U DE202007009044U1 (de) 2007-06-27 2007-06-27 Schalungselement
DE202007008977U DE202007008977U1 (de) 2007-06-27 2007-06-27 Schalungselement
PCT/EP2008/003004 WO2008128683A1 (de) 2007-04-19 2008-04-15 Schalungselement

Publications (2)

Publication Number Publication Date
EP2137353A1 EP2137353A1 (de) 2009-12-30
EP2137353B1 true EP2137353B1 (de) 2015-12-23

Family

ID=39590770

Family Applications (1)

Application Number Title Priority Date Filing Date
EP08735259.7A Not-in-force EP2137353B1 (de) 2007-04-19 2008-04-15 Schalungselement

Country Status (2)

Country Link
EP (1) EP2137353B1 (de)
WO (1) WO2008128683A1 (de)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2014135751A2 (en) * 2013-03-05 2014-09-12 Pura Sakari A casting mould
DE102013111056A1 (de) 2013-10-07 2015-04-09 Peca - Verbundtechnik Gmbh Schalungselement
CN108590164B (zh) * 2018-05-07 2019-10-15 中国矿业大学 一种trc折叠式可拼装永久性模板及其制作方法

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1551011A (en) * 1976-07-26 1979-08-22 Instrusion Prepakt Uk Ltd Compined rigid and flexible shuttering

Also Published As

Publication number Publication date
WO2008128683A1 (de) 2008-10-30
EP2137353A1 (de) 2009-12-30

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