EP1617012A1 - Matériau de coffrage - Google Patents

Matériau de coffrage Download PDF

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Publication number
EP1617012A1
EP1617012A1 EP05015031A EP05015031A EP1617012A1 EP 1617012 A1 EP1617012 A1 EP 1617012A1 EP 05015031 A EP05015031 A EP 05015031A EP 05015031 A EP05015031 A EP 05015031A EP 1617012 A1 EP1617012 A1 EP 1617012A1
Authority
EP
European Patent Office
Prior art keywords
material according
shuttering
profiling
rod elements
elements
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Withdrawn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
EP05015031A
Other languages
German (de)
English (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.)
FWR Solutions GmbH
Original Assignee
FWR Solutions GmbH
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 FWR Solutions GmbH filed Critical FWR Solutions GmbH
Publication of EP1617012A1 publication Critical patent/EP1617012A1/fr
Withdrawn legal-status Critical Current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
    • E04G15/00—Forms or shutterings for making openings, cavities, slits, or channels
    • E04G15/06—Forms or shutterings for making openings, cavities, slits, or channels for cavities or channels in walls of floors, e.g. for making chimneys
    • E04G15/061—Non-reusable forms
    • 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

Definitions

  • the invention relates to a formwork material explained in the preamble of claim 1 Art.
  • Such a formwork material is known from EP 507 054 B1.
  • the formwork material consists of a grid of transverse and longitudinal bar elements, in particular reinforcing bars, between which a sheet material, in particular an expanded metal grid, is inserted.
  • the formwork material can be used as it is as a flat formwork element, but can also be used for the production of predetermined, molded formwork elements.
  • a perforated sheet material, such as expanded metal, must be relatively carefully attached to the bar elements so that it does not break under the harsh conditions of the jobsite. In the known formwork material this is achieved in that the sheet material is inserted between the rods.
  • this type of formwork material is not usable everywhere.
  • a formwork sheet which consists of a perforated plate provided with profilings and transversely extending bar elements in the form of stiffening rails. Again, there is again the problem that the stiffening rails are not sufficiently secure to the openwork sheet material.
  • the invention is therefore based on the object to provide a formwork material that allows a secure attachment of the sheet material.
  • the sheet Due to the inventive design of the sheet is in the unbroken area sufficient material for a firm and secure attachment of the rod elements available, so that a secure and permanent attachment of the sheet material is possible without, for example, when attaching Care must be taken to ensure that each spot weld also captures a piece of material of the face material.
  • the non-perforated areas are provided with a profiling, which provides for improved dimensional stability.
  • the profilings and at least part of the rod elements should be transverse to each other.
  • the profiling does not take up the entire area of the unbroken areas, so that a foot region of the profiling remains for attachment to the bar elements.
  • the fasteners simultaneously act as a form assurance for the profiling and prevent to some extent that they are flattened during transport or use.
  • the profiling is strip-like and extends substantially over the entire surface material.
  • a substantially triangular cross section for the profiling is preferred because it has an optimal stiffening effect and carrying capacity.
  • the formwork material according to the invention can also be used without profiling, but preferably a carrier of lattice-shaped crossed bar elements is used.
  • the formwork material according to the invention may also be constructed of rod elements which are held by the sheet material, wherein preferably relatively narrow, non-perforated areas are provided.
  • a strip-shaped, non-perforated area is particularly easy to implement in the production of the sheet material and provides an optimal way to secure over the entire surface material continuous rod elements.
  • a preferred sheet material is an expanded metal sheet; However, perforated plates or the like are also useful.
  • a first embodiment of a formwork material according to the invention 1 can be seen, which is either as it is, optionally cut to size, as a flat formwork, or, three-dimensionally shaped, can be used as formwork for concrete construction.
  • the formwork material 1 comprises a carrier 2 with a plurality of rod elements 2a and 2b.
  • the carrier 2 is formed in the illustrated embodiment as a grid of mutually perpendicular and spaced-apart bar elements 2a, 2b.
  • Each of the rod elements 2a, 2b is preferably one of the usual reinforcing bars, as used extensively in concrete construction. These reinforcing bars have a substantially round cross section and are made of weldable steel.
  • the formwork material 1 further comprises a sheet material 3 which alternately has a region 3a which is broken through, i. is provided at more or less regular intervals and substantially over its entire surface with openings 4, which are shown in Fig. 1 only schematically as slots.
  • the sheet material 3 further contains, between two adjacent perforated regions 3a, further regions 3b which are not perforated, i. in which no substantially regularly distributed openings 4 are provided.
  • the regions 3b are formed as straight strips and extend parallel to one another and substantially over one of the surface dimensions, i. either the length or the width of the surface element 3, but end at any existing edges.
  • the sheet material 3 is preferably produced as a web material, wherein the means which generates the openings 4 is periodically stopped, so that the unbroken areas 3b transversely to the direction of passage of the sheet 3 through the openings 4 causing machine arise.
  • the sheet material 3 is an expanded metal sheet, wherein the slits which become openings after stretching of the material are introduced only in the perforated region 3a while the slit means is stopped when the future unbroken portion 3b passes through the device.
  • the distance between adjacent, unbroken areas 3b is adjusted to the dimensions of the carrier 2 so that it is approximately the distance or an integral multiple or an integral fraction of the distance between two adjacent, parallel bar elements, in the illustrated embodiment between the bar elements 2b, equivalent.
  • the width of the unbroken areas is preferably greater than the diameter of the corresponding rod elements 2b, but may also be about the circumference of the rod elements 2b or smaller than their diameter, the latter especially when the production of the formwork material 1 takes place automatically and the Manufacturing equipment with their welding and conveying files are exactly matched.
  • connection points 5 which lie within the unbroken region 3b and above the vertex of the underlying rod element 2b and connect the surface material 3 to the underlying rod element 2b of the carrier 2.
  • the connection points 5 are preferably welding points and are preferably provided at the points of intersection between the rod elements 2a, 2b, so that with a single spot weld the surface material 3 on parallel to the unbroken areas 3b extending rod element 2b on one side and with the transverse thereto Bar element 2a is connected on the other side of the parallel bar member 2b.
  • intermediate attachments or a continuous attachment between the non-perforated region 3b and the rod element 2b are also possible.
  • Fig. 2 shows another embodiment of a formwork material according to the invention 1 ', which is similar to the formwork material 1, but no separate Carrier has. Rather, here the surface material 3 is placed directly on transverse bar elements 2a.
  • the rod elements 2a extend transversely to the longitudinal extent of strip-shaped, unbroken regions 3b, so that each rod element 2a alternately abuts open areas 3a and unbroken areas 3b.
  • the rod elements 2a are in turn arranged substantially parallel to one another and preferably extend at right angles to the strip-shaped, unbroken regions 3b.
  • the sheet material 3 is in turn connected within the unbroken areas 3b to the bar elements 2a, preferably by welded connection points 5.
  • the sheet material 3 for the shuttering materials 1, 1 'according to FIG. 2 preferably has a sheet thickness of between 0.7 and 2 mm.
  • the width of the unbroken areas 3b between the perforated areas 3a, i. in the direction of the bar elements 2a, is preferably between 10 and 25 mm, while the width of the perforated portions 3a between the unbroken portions 3b may be between 50 to 150 mm.
  • the non-perforated regions 3b preferably have a width between 15 and 25 mm, in particular between 15 and 20 mm and the perforated regions 3a have a width between 85 and 120 mm, with a sheet thickness of preferably 0.8 to 2 , 0 mm.
  • FIG. 3 shows a further embodiment of a formwork material 10 according to the invention, which does not have a separate carrier, but in turn only contains parallel and spaced bar elements 12a and a planar material 13.
  • the sheet material 13 is in turn provided with perforated regions 13a and non-perforated regions 13b, which are arranged alternately and are formed substantially as described on the basis of the sheet material 3 in Fig. 1.
  • the difference to the sheet material 3 is that a profiling 16 has been formed in the non-perforated regions 13b.
  • the profiling 16 is formed like a strip and has a triangular cross-section in the illustrated embodiment, but does not extend over the entire width of the unbroken portion 13b, so that remain on both sides between the profiling 16 and the open areas 13a foot portions 16a and 16b, the lie in the plane of the openwork area 13a, but are not broken through.
  • the sheet material 13 is mounted on the rod members 12a such that the profilings 16 project on the side away from the rod member 12a and are substantially perpendicular to the rod members 12a, so that the profilings 16 and the rod members 12a form a substantially rectangular grid, as well as statically to treat as it would be a grid of crossed bar elements.
  • the sheet material 13 is in turn connected via connecting points 5 with the rod elements 12a, wherein the connection points 5 are provided in the foot portions 16a, 16b on both sides of the profiling 16, and thus also fix the shape of the profiling 16.
  • the sheet material 13 has before the molding of the profilings 16 or the beads non-perforated areas 13b having a width which is preferably greater than the width of the unbroken areas 3b of the preceding embodiments.
  • the width of the unbroken portion 13b between the perforated portions 13a is between about 30 mm and about 80 mm, with widths between 40 mm and 70 mm being preferred.
  • the profiles 16 or beads are preferably formed so that between 10 and 15 mm are available for each foot region 16a, 16b, while the rest of the unbroken region 13b is formed for profiling, i. between 20 and 40 mm.
  • the sheet thickness is preferably between 0.7 to 2.0 mm.
  • FIG. 4 shows a further embodiment of a formwork material 20 according to the invention, in which a lattice-shaped carrier 22 has been used, as has already been described in FIG. 1.
  • the lattice-shaped support 22 includes rod members 22a and 22b crossed at right angles and is covered with a sheet material 23 analogous to the sheet material 3, but having strip-like profiles 26 in the unbroken areas 23b flanked on both sides by foot portions 26a, 26b this has already been described with reference to FIG.
  • the profilings 26 have a cross-section adapted to the rod element 22b, so that the rod element 22b is substantially completely received in the profilings 26.
  • the profilings 26 have a curved, tunnel-shaped cross-section adapted to the cross-sectional shape of the rod elements 22b.
  • the cross-sectional shape may also be triangular.
  • the sheet material 23 is connected by means of attachment points 25 via the foot portions 26a, 26b with the respective transverse bar members 22a, either additional attachment points at the apex of the recorded in the profilings 26 bar members 23b and the unbroken areas 23b and / or the transverse bar elements 22a may be provided.
  • the dimensions of the sheet material 23 can be selected as in the sheet materials 3 and 13, wherein also here for the foot areas about 10 to 15 mm should be included.
  • the part of the width of the unbroken region 23b required for the tunnel-shaped profiling for receiving the rod element 22b is dependent on the dimensions of the rod element 23b, the diameters of the rod elements 22b preferably being between 4 and 10 mm.
  • the width of the broken portion 23a between unbroken portions 23b is the same as in the preceding embodiments, and is preferably between 50 and 150 mm.
  • the sheet thickness can be between 0.7 and 20.0 mm.
  • the details described with reference to the individual figures can be interchanged.
  • the profiling can take any desired shape; can e.g. also have a square or round cross-section.
  • the profiling can extend without foot areas over the entire unbroken area, so that the attachment takes place via the profiling. Instead of reinforcing bars, profiles, strips, bars or the like can be used.
EP05015031A 2004-07-13 2005-07-11 Matériau de coffrage Withdrawn EP1617012A1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE200420010963 DE202004010963U1 (de) 2004-07-13 2004-07-13 Schalungsmaterial

Publications (1)

Publication Number Publication Date
EP1617012A1 true EP1617012A1 (fr) 2006-01-18

Family

ID=35058833

Family Applications (1)

Application Number Title Priority Date Filing Date
EP05015031A Withdrawn EP1617012A1 (fr) 2004-07-13 2005-07-11 Matériau de coffrage

Country Status (2)

Country Link
EP (1) EP1617012A1 (fr)
DE (1) DE202004010963U1 (fr)

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1374215A (fr) * 1963-11-15 1964-10-02 Steinhaus Gmbh Plaque à cadres, légers, en tôle, notamment pour coffrages de paroi
DE1434353A1 (de) * 1962-03-07 1969-01-30 Werner Klann Kombiniertes Schalungsverfahren mit Stahlblechrahmenplatten als Schalelement auf Kantholzgerippe
JPH05133028A (ja) * 1991-11-11 1993-05-28 Tadashi Harada ラス型枠パネルと該パネルを用いた型枠
DE29602413U1 (de) * 1996-02-12 1996-03-28 Obernolte Sven Schalungselement
DE29602698U1 (de) * 1995-12-28 1997-05-07 Fischer Willibald Schalung
US20040010994A1 (en) * 2000-03-29 2004-01-22 Francesco Piccone Apertured wall element

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1434353A1 (de) * 1962-03-07 1969-01-30 Werner Klann Kombiniertes Schalungsverfahren mit Stahlblechrahmenplatten als Schalelement auf Kantholzgerippe
FR1374215A (fr) * 1963-11-15 1964-10-02 Steinhaus Gmbh Plaque à cadres, légers, en tôle, notamment pour coffrages de paroi
JPH05133028A (ja) * 1991-11-11 1993-05-28 Tadashi Harada ラス型枠パネルと該パネルを用いた型枠
DE29602698U1 (de) * 1995-12-28 1997-05-07 Fischer Willibald Schalung
DE29602413U1 (de) * 1996-02-12 1996-03-28 Obernolte Sven Schalungselement
US20040010994A1 (en) * 2000-03-29 2004-01-22 Francesco Piccone Apertured wall element

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
PATENT ABSTRACTS OF JAPAN vol. 017, no. 510 (M - 1480) 14 September 1993 (1993-09-14) *

Also Published As

Publication number Publication date
DE202004010963U1 (de) 2005-11-24

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