EP0491653A2 - Elément de coffrage - Google Patents

Elément de coffrage Download PDF

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Publication number
EP0491653A2
EP0491653A2 EP91810846A EP91810846A EP0491653A2 EP 0491653 A2 EP0491653 A2 EP 0491653A2 EP 91810846 A EP91810846 A EP 91810846A EP 91810846 A EP91810846 A EP 91810846A EP 0491653 A2 EP0491653 A2 EP 0491653A2
Authority
EP
European Patent Office
Prior art keywords
corrugated cardboard
formwork element
element according
profile strip
formwork
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.)
Withdrawn
Application number
EP91810846A
Other languages
German (de)
English (en)
Other versions
EP0491653A3 (en
Inventor
Gerhard Horstmann
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.)
CONSTRUMAT AG
Original Assignee
CONSTRUMAT AG
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
Application filed by CONSTRUMAT AG filed Critical CONSTRUMAT AG
Publication of EP0491653A2 publication Critical patent/EP0491653A2/fr
Publication of EP0491653A3 publication Critical patent/EP0491653A3/de
Withdrawn legal-status Critical Current

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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
    • E04G21/00—Preparing, conveying, or working-up building materials or building elements in situ; Other devices or measures for constructional work
    • E04G21/12—Mounting of reinforcing inserts; Prestressing
    • E04G21/125—Reinforcement continuity box
    • 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 present invention relates to an element for shuttering concrete slabs to be concreted in sections.
  • Formwork elements of the type mentioned at the outset are known in which a shrinkable film is applied on both sides to an iron framework under the action of hot air in such a way that the two film levels in the area of the windows between merge the bars of the framework with each other.
  • the corresponding manufacturing process is described in DE, Al, 31 38 513.
  • the known formwork elements have proven themselves in practical use, are easy to manufacture and inexpensive.
  • the reinforcement bars can advantageously be easily pierced through the film of the known formwork elements. Drilling holes or the like is not necessary.
  • the formwork element according to the invention is therefore characterized in that it has an elongated plate made of corrugated cardboard as a basic element, which is protected against moisture absorption.
  • the basic element consists only of cardboard
  • the stability and inherent rigidity of the formwork element according to the invention are quite sufficient. Protection against moisture absorption ensures that the cardboard base element does not soften and become unstable due to the effects of moisture during its use and, if necessary, before it is stored outdoors on the construction site.
  • Moisture protection is preferably carried out by means of impregnation or by coating with a film.
  • a profiled strip of smaller width can be releasably attached to the corrugated cardboard in its longitudinal direction in order to achieve shear teeth between the concrete ceiling sections to be created one after the other and, if necessary, for additional stiffening.
  • a very effective shear toothing can also be achieved by applying corrugated cardboard with open corrugations to the corrugated board.
  • the corrugated cardboard plate can be provided at regular intervals with stampings and / or markings which form or identify weak points or preferred points to facilitate the penetration of reinforcing bars.
  • All of the aforementioned parts of the shuttering element according to the invention can be separated from one another after their use and can thus be disposed of in a recyclable manner.
  • the corrugated cardboard plate 1 is two-ply here, but could also be formed in one or three layers with a layer thickness of about 5 mm per ply.
  • a typical length is 250 cm with a width between 12 and 50 cm.
  • the corrugated board 1 is further impregnated against moisture absorption, preferably by means of an injected mass made of a wax.
  • the profile bar 2 is made of wood. In order to ensure that it can be easily detached from the concrete when formwork is removed from the concrete ceiling section, it is trapezoidal in terms of its profile on the one hand and coated with a film 5 on the other hand. A polyethylene film with a thickness between 50 and 150 micrometers can be used as the film.
  • the profile strip 2 and the film 5 are releasably connected to one another. In particular, there is no fixed connection between the profile strip 2 and the film 5 enveloping it.
  • At least one band 6 which is led around the profile strip 2 on the outside is also provided.
  • the corrugated cardboard plate 1 can also be reinforced or stiffened by round rods of approximately 4 mm in diameter inserted into it at regular intervals of approximately 30 cm. Again, only two such stiffening irons are shown in the figure and designated 7. Depending on the orientation of the corrugation of the corrugated board 1, the stiffening irons are arranged horizontally or vertically. Your vertical, i.e. arrangement perpendicular to the longitudinal direction of the profile strip 2 is preferred.
  • corrugated cardboard 8 with open corrugations can also be applied to one or both sides of the corrugated cardboard plate 1 in order to achieve shear teeth.
  • the same structure is achieved, by the way, if the outermost cover layer of the corrugated board 1 is simply omitted.
  • the corrugated board 1 can be used on both sides.
  • the lateral end of the corrugated cardboard 8 of the corrugated cardboard can be achieved in that the last of the corrugations is firmly connected to the surface of the corrugated cardboard 1, for example by gluing.

Landscapes

  • 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)
EP19910810846 1990-12-17 1991-11-01 Formwork element Withdrawn EP0491653A3 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE9017003U DE9017003U1 (de) 1990-12-17 1990-12-17 Abschalungselement
DE9017003U 1990-12-17

Publications (2)

Publication Number Publication Date
EP0491653A2 true EP0491653A2 (fr) 1992-06-24
EP0491653A3 EP0491653A3 (en) 1992-09-09

Family

ID=6860349

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19910810846 Withdrawn EP0491653A3 (en) 1990-12-17 1991-11-01 Formwork element

Country Status (2)

Country Link
EP (1) EP0491653A3 (fr)
DE (1) DE9017003U1 (fr)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2777583B1 (fr) * 1998-04-15 2000-05-26 Soc D Produits Fabriques Norma Dispositif de positionnement de tiges d'armature dans un coffrage pour la realisation d'un ouvrage en beton arme
DE10028509A1 (de) * 2000-06-08 2001-12-20 Manfred Distler Schaleinheit zur Randabschalung
EP1970501B1 (fr) 2007-03-16 2011-11-30 Mägert Bautechnik AG Procédé et dispositif pour le décoffrage d'un élément en béton de type plaque
DE102017117375A1 (de) * 2017-08-01 2019-02-07 Max Frank Gmbh & Co. Kg Schalungselement für den Betonbau

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1064713A (en) * 1963-03-11 1967-04-05 Hugh Stevenson & Sons Ltd Improvements in or relating to cardboard sheet material
US3381929A (en) * 1963-07-24 1968-05-07 Elton Ind Inc Form assembly with adjustable retaining means for variable spacing
CH433948A (de) * 1965-03-31 1967-04-15 Hugh Stevenson & Sons Limited Aus mehreren miteinander verbundenen Schichten bestehender Karton, Verfahren zu dessen Herstellung und Verwendung desselben
FR2576350A1 (fr) * 1985-01-24 1986-07-25 Sommeria Klein Denis Procede de construction de murs ou panneaux a base de beton de ciment ou de terre crue

Also Published As

Publication number Publication date
DE9017003U1 (de) 1992-02-27
EP0491653A3 (en) 1992-09-09

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