EP0506715B1 - Coffrage en tole profilee pour plafonds composites en beton - Google Patents

Coffrage en tole profilee pour plafonds composites en beton Download PDF

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Publication number
EP0506715B1
EP0506715B1 EP91900667A EP91900667A EP0506715B1 EP 0506715 B1 EP0506715 B1 EP 0506715B1 EP 91900667 A EP91900667 A EP 91900667A EP 91900667 A EP91900667 A EP 91900667A EP 0506715 B1 EP0506715 B1 EP 0506715B1
Authority
EP
European Patent Office
Prior art keywords
sheet metal
ribs
profiled sheet
folds
composite concrete
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
EP91900667A
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German (de)
English (en)
Other versions
EP0506715A1 (fr
Inventor
Helmut Gerhard Katzenberger
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Individual
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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
Application filed by Individual filed Critical Individual
Publication of EP0506715A1 publication Critical patent/EP0506715A1/fr
Application granted granted Critical
Publication of EP0506715B1 publication Critical patent/EP0506715B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
    • E04B5/00—Floors; Floor construction with regard to insulation; Connections specially adapted therefor
    • E04B5/16—Load-carrying floor structures wholly or partly cast or similarly formed in situ
    • E04B5/32—Floor structures wholly cast in situ with or without form units or reinforcements
    • E04B5/36—Floor structures wholly cast in situ with or without form units or reinforcements with form units as part of the floor
    • E04B5/38—Floor structures wholly cast in situ with or without form units or reinforcements with form units as part of the floor with slab-shaped form units acting simultaneously as reinforcement; Form slabs with reinforcements extending laterally outside the element
    • E04B5/40—Floor structures wholly cast in situ with or without form units or reinforcements with form units as part of the floor with slab-shaped form units acting simultaneously as reinforcement; Form slabs with reinforcements extending laterally outside the element with metal form-slabs

Definitions

  • the invention relates to a formwork made of profiled sheet for composite concrete slabs, with downwardly open, mutually parallel ribs with a trapezoidal cross-section and with arranged between the ribs, parallel to these, upwardly directed folds made of sheet metal, the webs of which lie against each other , wherein for the improvement of the bond between the profiled sheet and the concrete at least part of the folds is corrugated in the longitudinal direction.
  • Formwork made of profiled sheet for composite concrete slabs are known, for example, from DE-OS 22 52 988 and from AT-PS 365 267.
  • Such formwork made of profiled sheet has the advantage over a wooden formwork that the lower support required during concreting is less bulky, which leaves space for working under the concrete slab. It is also advantageous that the profiled sheet absorbs tensile stresses on the lower surface of the finished concrete slab, whereby the thickness of the concrete slab can be reduced.
  • the folds pointing upwards have indentations of various types. So shows z. B. the AT-PS 365 267 folds, which are provided with compression depressions on the upper edge of the fold. Using these compression depressions, attempts were made to improve the adhesion between the concrete and the formwork made of profiled sheet metal.
  • Swiss patent specification 644 922 describes a formwork made of profiled sheet metal with parallel ribs and folds arranged between the ribs, which are formed by two webs lying flat against one another. The folds only have deformations at their upper edges, which should help to improve the bond between the concrete and the metal sheet.
  • the object of the invention is to improve a formwork of profiled sheet of the type mentioned in such a way that the bond between the profiled sheet and the concrete is improved.
  • the free edge of the folds describes an approximately horizontal wave in which the ratio of amplitude to half the wavelength is between 0.01 and 0.07.
  • one embodiment of the invention provides that a fold is arranged off-center between every two ribs.
  • FIG. 1 shows a schematic diagram of the composite concrete floor
  • FIG. 2 shows a top view of a fold
  • FIG. 3 shows a section through a profiled sheet
  • FIG. 4 shows a section through stacked profiled sheets.
  • the support beams, on which the profiled sheets are placed next to one another during the production of a ceiling, are not shown in the figures of the drawing, since they are designed according to the known prior art.
  • the profile sheets can also be connected to one another in a conventional manner by spot welding.
  • each profiled sheet 1 has ribs 3 pointing upwards towards the concrete 2.
  • the ribs 3 are parallel to each other and open at the bottom. In the exemplary embodiment, they have a trapezoidal cross section, the longer of the two parallel trapezoidal sides being at the top.
  • these folds 4 are continuously corrugated in the longitudinal direction.
  • the corrugation is such that the upper fold edge 5 deviates the furthest from the vertical longitudinal central plane of the fold 4, while the lower fold edge 6 lies practically in the vertical longitudinal central plane of the fold 4.
  • the ratio of the amplitude a of a wave described by the upper fold edge 5 to the half wavelength 1/2 of the fold 4 is between 0.01 and 0.07, advantageously around 0.033.
  • the ratio of the web height d of a fold 4 to the height h of a rib 3 is between 0.2 and 0.6, advantageously around 0.3.
  • the profiled sheet 1 is firmly anchored in the concrete 2.
  • the profiled sheets 1, as shown in FIG. 4 can be stacked one inside the other.

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  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Forms Removed On Construction Sites Or Auxiliary Members Thereof (AREA)
  • Macromonomer-Based Addition Polymer (AREA)

Claims (6)

  1. Coffrage en tôle profilée pour plafonds composites en béton, comportant des nervures de section trapézoïdale, parallèles entre elles et ouvertes vers le bas, et des replis disposés entre les nervures et s'étendant parallèlement à ces dernières, replis qui sont dirigés vers le haut et sont formés par pliage de la tôle et dont les flancs s'appliquent l'un contre l'autre, une partie au moins des replis étant ondulée dans le sens de la longueur en vue d'une amélioration de l'adhérence entre la tôle profilée et le béton, caractérisé en ce que le bord libre (5) des replis (4) décrit une onde sensiblement horizontale, pour laquelle le rapport de l'amplitude (a) à la demi-longueur d'onde (ℓ/2) se situe entre 0,01 et 0,07.
  2. Coffrage en tôle profilée pour plafonds composites en béton, selon la revendication 1, caractérisé en ce que le rapport de l'amplitude (a) à la demi-longueur d'onde (ℓ/2) se situe à environ 0,033.
  3. Coffrage en tôle profilée pour plafonds composites en béton, notamment selon la revendication 1 ou 2, comportant des nervures de section trapézoïdale, parallèles entre elles et ouvertes vers le bas, et des replis disposés entre les nervures et s'étendant parallèlement à ces dernières, replis qui sont dirigés vers le haut et sont formés par pliage de la tôle et dont les flancs s'appliquent l'un contre l'autre, ces replis présentant des déformations en vue de l'amélioration de l'adhérence entre la tôle profilée et le béton, caractérisé en ce que chaque repli (4) est disposé dans une position excentrée entre les deux nervures respectives (3).
  4. Coffrage en tôle profilée pour plafonds composites en béton, selon la revendication 3, caractérisé en ce que tous les replis (4) sont décalés dans la même direction et de la même distance (f) par rapport à l'axe médian entre deux nervures (3).
  5. Coffrage en tôle profilée pour plafonds composites en béton, selon l'une au moins des revendications 1 à 4, caractérisé en ce que le rapport de la hauteur (d) des replis (4) à la hauteur (h) des nervures (3) se situe entre 0,2 et 0,6.
  6. Coffrage en tôle profilée pour plafonds composites en béton, selon la revendication 5, caractérisé en ce que le rapport de la hauteur (d) des replis (4) à la hauteur (h) des nervures (3) se situe à environ 0,3.
EP91900667A 1989-12-19 1990-12-18 Coffrage en tole profilee pour plafonds composites en beton Expired - Lifetime EP0506715B1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
AT287689 1989-12-19
AT2876/89 1989-12-19
PCT/AT1990/000124 WO1991009185A1 (fr) 1989-12-19 1990-12-18 Coffrage en tôle profilee pour plafonds composites en beton

Publications (2)

Publication Number Publication Date
EP0506715A1 EP0506715A1 (fr) 1992-10-07
EP0506715B1 true EP0506715B1 (fr) 1994-11-02

Family

ID=3541706

Family Applications (1)

Application Number Title Priority Date Filing Date
EP91900667A Expired - Lifetime EP0506715B1 (fr) 1989-12-19 1990-12-18 Coffrage en tole profilee pour plafonds composites en beton

Country Status (4)

Country Link
EP (1) EP0506715B1 (fr)
AT (1) ATE113686T1 (fr)
DE (1) DE59007660D1 (fr)
WO (1) WO1991009185A1 (fr)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN100458039C (zh) * 2002-12-22 2009-02-04 邱则有 一种现浇钢筋砼用构件
WO2006064989A1 (fr) * 2004-12-16 2006-06-22 B.B.M Korea Co., Ltd Banche de dalle pour structure en beton arme et procede de construction de la structure

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3812636A (en) * 1971-05-26 1974-05-28 Robertson Co H H Sheet metal decking unit and composite floor construction utilizing the same
DE2252988A1 (de) * 1972-10-28 1974-05-09 Bernhard Dr Ing Unger Verbundplatte aus beton und einem trapezblech
AT390093B (de) * 1985-08-27 1990-03-12 Katzenberger Helmut Schalung aus profilblech fuer betonverbunddecken
AT390095B (de) * 1985-11-13 1990-03-12 Katzenberger Helmut Schalung aus profilblech fuer betonverbunddecken
PT83026A (en) * 1986-07-21 1987-01-26 Pentti Vainionpaa Compound slab section

Also Published As

Publication number Publication date
ATE113686T1 (de) 1994-11-15
WO1991009185A1 (fr) 1991-06-27
DE59007660D1 (de) 1994-12-08
EP0506715A1 (fr) 1992-10-07

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