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EP0299226B1 - Coffrage pour la réalisation d'éléments de construction en béton - Google Patents

Coffrage pour la réalisation d'éléments de construction en béton Download PDF

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Publication number
EP0299226B1
EP0299226B1 EP88109695A EP88109695A EP0299226B1 EP 0299226 B1 EP0299226 B1 EP 0299226B1 EP 88109695 A EP88109695 A EP 88109695A EP 88109695 A EP88109695 A EP 88109695A EP 0299226 B1 EP0299226 B1 EP 0299226B1
Authority
EP
European Patent Office
Prior art keywords
formwork
stiffening
stiffening element
elements
another
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
EP88109695A
Other languages
German (de)
English (en)
Other versions
EP0299226A2 (fr
EP0299226A3 (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
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 PECA-VERBUNDTECHNIK GmbH filed Critical PECA-VERBUNDTECHNIK GmbH
Priority to AT88109695T priority Critical patent/ATE80196T1/de
Publication of EP0299226A2 publication Critical patent/EP0299226A2/fr
Publication of EP0299226A3 publication Critical patent/EP0299226A3/de
Application granted granted Critical
Publication of EP0299226B1 publication Critical patent/EP0299226B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • E04G9/00—Forming or shuttering elements for general use
    • E04G9/02—Forming boards or similar elements
    • E04G9/05—Forming boards or similar elements the form surface being of plastics
    • 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
    • E04G13/00—Falsework, forms, or shutterings for particular parts of buildings, e.g. stairs, steps, cornices, balconies foundations, sills
    • 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
    • E04G17/00—Connecting or other auxiliary members for forms, falsework structures, or shutterings
    • E04G17/14—Bracing or strutting arrangements for formwalls; Devices for aligning forms

Definitions

  • the invention relates to a formwork for producing concrete components according to the preamble of claim 1.
  • formwork which uses as formwork elements (formlining), for example, a composite material known from DE-OS 3 142 148, which consists of a grid material (structural steel mat) as a support and at least a plastic film (shrink film) applied to this mesh material.
  • formwork elements for example, a composite material known from DE-OS 3 142 148, which consists of a grid material (structural steel mat) as a support and at least a plastic film (shrink film) applied to this mesh material.
  • a formwork element is used as the lost formwork, which is made from this composite material by bending such that it has a U-shaped cross section in the longitudinal direction of the formwork, which consists of two parallel and spaced side surfaces and a lower yoke surface connecting these side surfaces is formed, the side surfaces of previously used formwork being connected to one another by a plurality of spacers.
  • formwork for concrete components in particular also lost formwork with a wide variety of shapes adapted to the respective intended use, can be produced inexpensively, with a low basis weight and thus easy handling of the formwork element; a however, there is a certain disadvantage in that the composite material has only a relatively low bending stiffness in relation to forces acting perpendicular to the surfaces of this composite material, so that, for example, a relatively large number of spacers is required for the manufacture of foundations or beams in the case of the U-shaped formwork element mentioned above , which must then be arranged with a relatively small mutual distance in the longitudinal direction of the formwork and in a direction perpendicular thereto (in the vertical direction) in order to avoid bulging of the formwork due to the weight of the concrete introduced into the formwork.
  • the object of the invention is to form a formwork of the type described in such a way that it has an improved rigidity with respect to the composite material used as formwork skin while maintaining the lowest possible weight and thus simple handling.
  • space-lattice-like or lattice girder type is to be understood as an embodiment in which the at least three longitudinal bars in the cross-section of the stiffening element are offset from one another in such a way that they form the corner points of a triangle or polygon.
  • the stiffness of the at least one formwork element is significantly improved by the stiffening element designed like a space lattice, wherein in particular, the stiffening element can also be manufactured inexpensively and has only a low weight, so that the formwork as a whole can also be manufactured inexpensively and with a low weight that facilitates handling.
  • stiffening element it is also possible, particularly in the case of U-shaped formwork elements used for the manufacture of beams or foundations, to reduce the number of spacers or to increase the mutual spacing of such spacers, so that this considerably simplifies the formwork with the same rigidity Manufacturing and cost reduction result.
  • Lattice girder-like elements for a wide variety of purposes in construction are already known; however, they were not used as a stiffening element for formwork made from the material used according to the invention.
  • FR-A-2 247 596 shows a lattice girder-like element which is used as a collet to bridge the distance between two panels, the panels being supported at their edges if necessary; protection against deflection is therefore not possible with the known stiffening element.
  • At least one stiffening element is fastened on at least one surface of the formwork formed by the formwork element in such a way that it extends adjacent to this surface in the longitudinal direction of the formwork.
  • At least one stiffening element is provided, which is arranged with its longitudinal extension perpendicular or transverse to these surfaces between the two formwork elements.
  • at least one further stiffening element is provided on each surface, which rests against this surface and extends in the longitudinal direction of the relevant formwork element.
  • 1 is a formwork element which is produced by bending from a composite material.
  • This composite material consists of a latticework or material as a carrier, which is formed by a conventional structural steel mat with reinforcing bars or structural steels 2 and 3 which cross and are connected to one another at the crossing points, and from two plastic foils 4 shrunk on both sides of the lattice material, which cover the mesh material on both sides and thus also close the mesh openings of this material and are welded to one another in the region of the mesh openings.
  • the formwork element 1 which is used for example for the production of beams or foundations made of concrete, is from the Composite material bent so that it has a U-shaped cross-section, ie two vertical, spaced side surfaces 5 and 6 and a lower floor or yoke surface 7 connecting these side surfaces, the bending edge between the side surfaces 5 and 6 and the bottom surface 7 runs parallel to the structural steels 2 and perpendicular to the structural steels 3 angled at these bending edges.
  • a plurality of spacers 8 are provided which run perpendicular to the side surfaces and connect the latter to one another in a pressure-resistant and tensile manner also in the longitudinal direction of the formwork element 1, ie are arranged one behind the other perpendicular to the plane of the drawing in FIG. 1.
  • Each spacer consists of a rod-shaped element 9 made of iron or steel, which is formed at each end with a fork-shaped section 10 with two legs 11 each.
  • the legs 11 of each section 10 are arranged parallel and at a distance from one another and extend in the longitudinal direction of the element 9.
  • the length of each leg 11 is equal to a multiple of the diameter of the structural steels 2 and 3, ie greater than three times the diameter of the latter in the illustrated embodiment Structural steels.
  • the fork-shaped sections 10 are produced, for example, from flat steel by bending and in the region of the yoke section 12 connecting the legs 11 to the each end of the element 9 connected or welded.
  • each leg 11 a row of holes formed by bores 13, 13 'and 13 "and arranged in the longitudinal direction of the leg is provided, each bore 13, 13' and 13" on one leg 11 being congruent with a corresponding bore on the other leg 11.
  • the sections 10 penetrate the two shrink films 4, so that the legs 11 each protrude beyond the outer surface of the formwork element 1.
  • the legs 11 of each section 19 each comprise a structural steel 2.
  • Each stiffening element 14 consists of three longitudinal rods or structural steels 15-17 extending in the longitudinal direction of the stiffening element 14, which in the illustrated embodiment have the same diameter as the structural steels 2 and 3 and are arranged parallel to one another and at a distance from one another such that they are in the Cross section of the stiffening element 14 form the corner points of an equilateral triangle, the shorter base between the structural steels 15 and 16 and the larger leg between the structural steels 15 and 17 or 16 and 17 are formed.
  • the structural steels 15-17 are connected to one another by a plurality of elements 18, each of which is bent in a V-shape and also made of structural steel, for the lattice girder-like stiffening element 14.
  • Each stiffening element 14 is arranged on the outer surface of the respective side surface 5 or 6 so that it rests with its structural steels 15 and 16 on the outer surface or is immediately adjacent, the structural steel 15 being above the structural steel 16 in the embodiment shown.
  • Each stiffening element 14 is held on the relevant side surface 5 or 6 in that the structural steel 15 is also received between the two legs 11 of the spacers 8.
  • the bolt 15 or the stiffening element 14 are secured against slipping out or down on the sections 10 of the spacers 8 by means of a bolt or nail 19 which, for example, passes through the overlapping bores 13 'of the relevant section 10.
  • stiffening elements 14 which have a particularly high moment of inertia in the loading direction (perpendicular to these side surfaces) due to their configuration and arrangement described above on the side surfaces 5 and 6, it is also possible to determine the distance that the spacers 8 have in the longitudinal direction of the Formwork element 1 (perpendicular to the drawing plane of FIG. 1) from each other to choose larger than would be possible without the use of the stiffening elements 14.
  • FIGS. 6 and 7. A further embodiment is shown in FIGS. 6 and 7.
  • the formwork consists of at least two at a greater distance Formwork elements 1 'arranged from each other, which in turn are made of the same composite material as the formwork element 1.
  • the formwork element 1 ' is shown in FIGS. 6 and 7.
  • This is part of a concrete formwork for producing a concrete foundation, wherein in the embodiment shown, the formwork element 1 'also has a U-shaped cross section, so that with two such formwork elements 1' two parallel and spaced-apart beam foundations or sections thereof can be produced.
  • the space between the two formwork elements 1 ' is bridged by a plurality of stiffening elements 14 arranged one behind the other in the longitudinal direction of these formwork elements, that is to say in the direction perpendicular to the plane of the drawing in FIG. 6, each with its longitudinal extension perpendicular to the mutually facing side surfaces 6 of the two formwork elements 1 'lie and extend with their two ends into the mold space 24 of the two formwork elements 1 which serves to hold the concrete, through the side face 6, in the embodiment shown directly in the region of the upper longitudinal edge of the formwork elements 1'.
  • the stiffening elements 14 are held in a suitable manner (for example by connecting) to the structural steels 2 and / or 3 of the side surfaces 6 of the two formwork elements 1 '.
  • the stiffening elements 14 each penetrate the shrink films 4 'in the area of a lattice opening or in the area of an enlarged opening, which was created by cutting out a partial length of at least one of the structural steels 2 or 3 in the area of the passage point for the stiffening element 14.
  • stiffening elements 14 Mutual support of the two formwork elements 1 'arranged at a distance from one another is achieved, all stiffening elements 14 being embedded in this concrete after the concrete has been introduced into the mold spaces 24 of the formwork element 1', so that it is then after the two beam foundations or whose sections are possible to place a flat material 25, namely the composite material already described, on the stiffening elements 14, which then forms the lower, horizontal formwork wall or formwork skin for a concrete slab to be subsequently created.
  • the formwork according to FIGS. 6 and 7 can thus be used in particular as lost formwork for the production of concrete walls or foundations with a concrete ceiling above it.
  • stiffening elements 14 bridging the space between the formwork elements 1 ' it is also expedient to also provide those which, according to FIGS. 1 to 5, bear against the side surfaces 5 and 6 of the formwork elements 1'.
  • the spacers 8 or their sections 10 can also be used to two in the longitudinal direction of the formwork, i.e. 1 formwork elements 1 and 1 ', which adjoin one another perpendicularly to the drawing plane of FIG. 1 and which in the connection area on the side surfaces 5 and 6 and on the yoke surface 7 overlap to a partial length.
  • two adjacent structural steels 2 of the two formwork elements in the connection or in the overlap area and also the structural steel 15 of the stiffening element 14 are then received between the legs 11 of the corresponding spacers 8, the nail 19 serving to secure them through the bore 13 "of the two Leg 11 is inserted.

Landscapes

  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Mechanical Engineering (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Moulds, Cores, Or Mandrels (AREA)
  • Forms Removed On Construction Sites Or Auxiliary Members Thereof (AREA)
  • Heat Treatment Of Steel (AREA)
  • Pressure Welding/Diffusion-Bonding (AREA)
  • Polyesters Or Polycarbonates (AREA)
  • Bridges Or Land Bridges (AREA)
  • Rod-Shaped Construction Members (AREA)
  • Manufacturing Of Tubular Articles Or Embedded Moulded Articles (AREA)
  • Panels For Use In Building Construction (AREA)
  • Moulds For Moulding Plastics Or The Like (AREA)

Claims (9)

  1. Coffrage pour la fabrication d'éléments de construction en béton, comprenant au moins un élément de coffrage plat (1, 1') lequel est constitué d'un matériau composite comportant un grillage métallique (2, 3) servant de support et au moins un film (4) prévu sur ce support, ainsi qu'au moins un dispositif raidisseur (14) pour l'élément de coffrage (1, 1'), caractérisé par le fait que le dispositif raidisseur contient un élément raidisseur (14) du type poutre à treillis qui présente, pour empêcher le fléchissement d'une face (5, 6) de l'élément de coffrage (1, 1'), au moins trois barres longitudinales (15, 16, 17 ; 20, 21) s'étendant en direction longitudinale de l'élément raidisseur (14) et disposées côte à côte à une distance mutuelle et formées en acier de construction, ainsi que plusieurs éléments transversaux (18, 22) fabriqués en acier de construction reliant lesdites barres longitudinales les unes aux autres, par le fait que l'élément raidisseur (14) est maintenu sur la face (5, 6) de l'élément de coffrage (1, 1') de telle sorte que ledit élément raidisseur (14) s'écarte latéralement de ladite face (5, 6), et par le fait que la fixation de l'élément raidisseur (14) sur le support implique la rupture du film (4).
  2. Coffrage selon la revendication 1, caractérisé par le fait que, pour la fixation de l'élément raidisseur (14) sur la face (5, 6) de l'élément de coffrage (15) sont prévus plusieurs éléments (10) en forme de fourches donc chacun chevauche par ses deux branches (11) à la manière d'une agrafe une barre de treillis (2) du matériau composite formant l'élément de coffrage (1) ainsi qu'une barre longitudinale (15) s'étendant en direction longitudinale de l'élément raidisseur (14), et par le fait que pour assurer cette liaison est prévu un élément (19) du type boulon assemblant les deux branches (11) de chaque élément (19) en forme de fourche.
  3. Coffrage selon la revendication 2, caractérisé par le fait que l'élément de coffrage (1) présente deux faces de coffrage (5, 6) disposées parallèlement et à une certaine distance l'une de l'autre, ces faces étant reliées mutuellement par plusieurs pièces d'écartement (8), et par le fait que chaque pièce d'écartement (8) est munie sur ses deux extrémités d'une section (10) en forme de fourche.
  4. Coffrage selon la revendication 3, caractérisé par le fait que l'élément de coffrage (1) présente une section transversale en forme de U.
  5. Coffrage selon l'une des revendications 1 à 4, caractérisé par le fait que l'élément raidisseur (14) s'étend en direction longitudinale du coffrage.
  6. Coffrage selon l'une des revendications 1 à 5, caractérisé par le fait que ledit coffrage présente au moins deux éléments de coffrage (1') disposés à une certaine distance l'un de l'autre et comportant chacun au moins une face (5, 6) et par le fait que l'élément raidisseur (14) s'étend perpendiculairement à une face (6) respectivement de chaque élément de coffrage (1').
  7. Coffrage selon la revendication 6, caractérisé par le fait que l'élément raidisseur (14) traverse, par ses deux extrémités, la face respective (6) de chaque élément de coffrage (1).
  8. Coffrage selon l'une des revendications 1 à 7, caractérisé par le fait que l'élément raidisseur (14) présente trois barres longitudinales (15, 16, 17) s'étendant en direction longitudinale dudit élément raidisseur (14), lesdites barres formant les sommets d'un triangle inscrit dans la section transversale de l'élément raidisseur (14), de préférence les sommets d'un triangle isocèle.
  9. Coffrage selon la revendication 8, caractérisé par le fait qu'une première et une deuxième barres longitudinales (15, 16), placées à une distance mutuelle plus faible, sont situées au voisinage de l'élément de coffrage (1) à savoir de sa face (5, 6) et que la troisième barre longitudinale (17) est disposée à une certaine distance de cette face (5, 6).
EP88109695A 1987-07-17 1988-06-16 Coffrage pour la réalisation d'éléments de construction en béton Expired - Lifetime EP0299226B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT88109695T ATE80196T1 (de) 1987-07-17 1988-06-16 Schalung zum herstellen von betonbauteilen.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3723676A DE3723676C1 (de) 1987-07-17 1987-07-17 Schalung zum Herstellen von Betonbauteilen
DE3723676 1987-07-27

Publications (3)

Publication Number Publication Date
EP0299226A2 EP0299226A2 (fr) 1989-01-18
EP0299226A3 EP0299226A3 (en) 1989-03-29
EP0299226B1 true EP0299226B1 (fr) 1992-09-02

Family

ID=6331786

Family Applications (1)

Application Number Title Priority Date Filing Date
EP88109695A Expired - Lifetime EP0299226B1 (fr) 1987-07-17 1988-06-16 Coffrage pour la réalisation d'éléments de construction en béton

Country Status (10)

Country Link
US (1) US4974388A (fr)
EP (1) EP0299226B1 (fr)
CN (1) CN1015191B (fr)
AT (1) ATE80196T1 (fr)
CA (1) CA1295843C (fr)
DE (2) DE3723676C1 (fr)
ES (1) ES2035162T3 (fr)
FI (1) FI86456C (fr)
GR (1) GR3005596T3 (fr)
TR (1) TR23563A (fr)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
IT1267079B1 (it) * 1993-10-29 1997-01-24 Srl Costruzioni Procedimento per la realizzazione di manufatti prefabbricati in c.a. e relativo manufatto ottenuto
US6362235B1 (en) * 1999-05-10 2002-03-26 Biosensory, Inc. Method, apparatus and compositions for inhibiting the human scent tracking ability of mosquitoes in environmentally defined three dimensional spaces
WO2006098800A1 (fr) 2005-01-14 2006-09-21 Airlite Plastics Co. Coffrage constitue de panneaux en mousse isolante
CA2793668A1 (fr) 2011-10-31 2013-04-30 Bradley J. Crosby Appareil et methode de construction de structures a l'aide de formes de beton isolees
CA2801735C (fr) 2012-01-13 2019-08-06 Bradley J. Crosby Equipement et methode pour la construction de structures a partir de coffrages de beton isole
USD713975S1 (en) 2012-07-30 2014-09-23 Airlite Plastics Co. Insulative insert for insulated concrete form
DE102013220854A1 (de) * 2013-10-15 2015-04-16 Fwr Solutions Gmbh Schalung für den Betonbau
US10787827B2 (en) 2016-11-14 2020-09-29 Airlite Plastics Co. Concrete form with removable sidewall
CA3061942A1 (fr) 2018-11-19 2020-05-19 Bradley J. Crosby Coffrage a beton avec paroi laterale amovible

Family Cites Families (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US646502A (en) * 1899-05-12 1900-04-03 Timothy O'shea Building construction for floors and ceilings.
US1671946A (en) * 1925-03-03 1928-05-29 Insulex Corp Building construction
US1791278A (en) * 1928-02-02 1931-02-03 Ingalls Steel Products Company Bar joist
US1794628A (en) * 1929-01-12 1931-03-03 Gen Railway Signal Co Train-dispatching system for railroads
US1986171A (en) * 1931-06-16 1935-01-01 Frederick R Wilson Steel and concrete construction
FR1089334A (fr) * 1953-05-19 1955-03-16 élément de coffrage pour réalisation de maconnerie en béton de remplissage, et procédé de réalisation de maconnerie de remplissage avec l'élément de coffrage
US3479780A (en) * 1967-07-25 1969-11-25 Hendon Construction Co Camber truss upper frame supporting means for sidewalls of an above ground swimming pool
US3555751A (en) * 1968-08-16 1971-01-19 Robert M Thorgusen Expansible construction form and method of forming structures
DE2353932A1 (de) * 1972-10-30 1974-05-22 Franz Moessler Stuetzvorrichtung fuer schalungsplatten
GB1479448A (en) * 1973-10-12 1977-07-13 Evans & Sons Ltd C Decking beam assembly
IT7967643A0 (it) * 1979-03-28 1979-03-28 Barale Giuseppe Sistema integrapido flessibile per armature verticali
US4366657A (en) * 1980-03-05 1983-01-04 Fred Hopman Method and form for mechanically pouring adobe structures
DE3142148A1 (de) * 1981-10-23 1983-05-05 Heinz Ing.(grad.) 8644 Pressig Carl "verbundwerkstoff"
US4667923A (en) * 1986-02-28 1987-05-26 Lee Yuan H Molding device for modular concrete unit

Also Published As

Publication number Publication date
DE3874247D1 (de) 1992-10-08
EP0299226A2 (fr) 1989-01-18
CN1030957A (zh) 1989-02-08
ATE80196T1 (de) 1992-09-15
ES2035162T3 (es) 1993-04-16
CN1015191B (zh) 1991-12-25
DE3723676C1 (de) 1988-09-15
FI883319A0 (fi) 1988-07-12
FI86456B (fi) 1992-05-15
FI86456C (fi) 1992-08-25
EP0299226A3 (en) 1989-03-29
FI883319A (fi) 1989-01-18
GR3005596T3 (fr) 1993-06-07
CA1295843C (fr) 1992-02-18
US4974388A (en) 1990-12-04
TR23563A (tr) 1990-04-02

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