WO1995013440A1 - Treillis d'armature pour beton - Google Patents

Treillis d'armature pour beton Download PDF

Info

Publication number
WO1995013440A1
WO1995013440A1 PCT/EP1994/003620 EP9403620W WO9513440A1 WO 1995013440 A1 WO1995013440 A1 WO 1995013440A1 EP 9403620 W EP9403620 W EP 9403620W WO 9513440 A1 WO9513440 A1 WO 9513440A1
Authority
WO
WIPO (PCT)
Prior art keywords
bars
longitudinal
concrete
cross bars
longitudinal bars
Prior art date
Application number
PCT/EP1994/003620
Other languages
German (de)
English (en)
Inventor
Johannes Bucher
Original Assignee
Nemis Establishment
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 Nemis Establishment filed Critical Nemis Establishment
Publication of WO1995013440A1 publication Critical patent/WO1995013440A1/fr

Links

Classifications

    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
    • E04C5/00—Reinforcing elements, e.g. for concrete; Auxiliary elements therefor
    • E04C5/01—Reinforcing elements of metal, e.g. with non-structural coatings
    • E04C5/02—Reinforcing elements of metal, e.g. with non-structural coatings of low bending resistance
    • E04C5/04—Mats
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
    • E04C5/00—Reinforcing elements, e.g. for concrete; Auxiliary elements therefor
    • E04C5/01—Reinforcing elements of metal, e.g. with non-structural coatings
    • E04C5/02—Reinforcing elements of metal, e.g. with non-structural coatings of low bending resistance
    • E04C5/03—Reinforcing elements of metal, e.g. with non-structural coatings of low bending resistance with indentations, projections, ribs, or the like, for augmenting the adherence to the concrete

Definitions

  • the invention relates to a reinforcement grid with straight longitudinal bars arranged in one plane and with straight cross bars which are connected to the longitudinal bars at intersection points, with an overlap area being provided on at least one longitudinal side of the reinforcement grid.
  • Such reinforcement grids or reinforcement mats are known in a variety of designs. They are laid overlapping with adjacent reinforcement grids in concrete formwork, which are then filled with heavy concrete.
  • At least some of the cross bars have at least one end section which lies between two crossing points with the longitudinal bars of the overlap area outside the cross bar axis. Extending outside the bar axis is understood to mean that the end section has at least one region lying or bent obliquely to the axis of the cross bar, which increases the bond effect with the concrete.
  • the end sections are corrugated parallel to the plane of the longitudinal bars, so that the transverse bars are readily associated with the longitudinal bars in the usual way
  • the corrugation can take place in any way, for example in the form of a sine curve or in a zigzag.
  • One embodiment provides that the wave height, ie the deviation from the rod axis, is at the end of the crossbar increases.
  • the number of cross bars provided with end sections extending outside the bar axis can be different for each reinforcement grid.
  • End sections of the cross bars are wound helically.
  • the end sections are thus designed like a corkscrew.
  • Reinforcement meshes according to the invention can be produced in conventional automatic strengthening systems, in which the cross bars are also removed from rings.
  • An area is corrugated, and the corrugated area is preferably cut into two corrugated end sections, which are then welded to the respective longitudinal bars in cycles.
  • Crossbars with end sections corrugated on one side can also be alternately provided in both overlap areas.
  • FIGS. 1 and 2 show a detail of top views of left longitudinal edge areas of reinforcement mats in two different versions
  • FIGS. 3 to 5 cross sections through the longitudinal edge areas in three different versions
  • FIG. 6 shows an end view with a schematic representation of the composite effect 1 and 3 or 2 and 3
  • FIG. 7 shows a corresponding end view of an embodiment according to FIGS. 1 and 4, 1 and 5, 2 and 4, or 2 and 5.
  • a reinforcement grid according to the invention has straight longitudinal bars 1 lying in one plane and transverse bars 2 lying above them, which are welded to one another at the crossing points.
  • the reinforcement grids are intended for overlapping laying with further reinforcement grids, which results in an overlap area 4 on each longitudinal edge.
  • the end section 3 of at least some cross bars 2 runs in the overlap region 4 outside the axis of the otherwise straight cross bar 2, with only one end section 3 of such a cross bar 2 in the drawing figures and the areas of the longitudinal bars 1 directly adjoining the crossing points are shown.
  • the end section 3 of the crossbar 2 can, for example, be corrugated in accordance with FIG. 3 in the lattice plane, the plane corrugation according to FIG. 1 remaining the same or increasing according to FIG. 2 towards the end of the crossbar 2.
  • composite action lines to the surrounding concrete 5, as shown schematically in FIG. 6, lie in an elliptical area, the longer axis of which is caused by three rod diameters if the shaft height and the shaft depth are each one rod diameter.
  • the end sections 3 of the cross bars 2 can also be corrugated perpendicular to the grating plane, the combination of the corrugations according to FIGS. 1 and 5 providing a corkscrew-like design.
  • the associated composite action lines for the surrounding concrete 5 are shown schematically in FIG. 7.
  • the area is circular, but at least half as large as in the case of a straight end section 3 lying in the axis. cuts, the width of the overlap of two reinforcement grids can be reduced to half the usual size.
  • the distances between the longitudinal bars 1 can be smaller in the overlap area 4 than in the rest of the reinforcement grid, as indicated in FIG. 1, 3 or 5 by the additional, central longitudinal bars 1.

Abstract

Afin d'améliorer l'ancrage, dans le béton, d'un treillis d'armature formé de barres longitudinales rectilignes (1) disposées dans un plan et de barres transversales rectilignes (2) reliant les barres longitudinales (1), au moins quelques-unes des barres transversales (2) sont ondulées ou tordues en spirale dans leur partie d'extrémité (3) s'étendant à l'extérieur de l'axe de la barre.
PCT/EP1994/003620 1993-11-09 1994-11-04 Treillis d'armature pour beton WO1995013440A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
AT227493 1993-11-09
ATA2274/93 1993-11-09

Publications (1)

Publication Number Publication Date
WO1995013440A1 true WO1995013440A1 (fr) 1995-05-18

Family

ID=3531313

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP1994/003620 WO1995013440A1 (fr) 1993-11-09 1994-11-04 Treillis d'armature pour beton

Country Status (1)

Country Link
WO (1) WO1995013440A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2011107848A2 (fr) * 2010-03-02 2011-09-09 Anil Krishna Kar Barre de renfort améliorée pour prolongation de la durée de vie de structures en béton armé
FR3104569A1 (fr) 2019-12-16 2021-06-18 Saint-Gobain Adfors Structure textile à base de fibres de verre avec revêtement parylène

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR886983A (fr) * 1940-12-30 1943-10-29 Procédé pour l'ancrage des fils d'armature pré-tendus dans la fabrication du béton armé
FR887116A (fr) * 1942-09-21 1943-11-04 Procédé pour augmenter la résistance d'adhérence de fils d'acier dans la confection de pièces en béton à tension préalable
FR1169408A (fr) * 1957-03-13 1958-12-29 Fer de mise en tension servant d'armature pour le béton armé
DE1509046A1 (de) * 1963-03-15 1969-03-13 Baustahlgewebe Gmbh Baustahlmatten
DE2354132A1 (de) * 1973-10-29 1975-05-07 Rehm Gallus Betonstahlmatte
FR2270410A1 (en) * 1974-03-05 1975-12-05 Vigliano Marcel Steel reinforcement for concrete slabs - has side by side coils with turns interconnected, overlapping or tangential
DE3513235A1 (de) * 1984-04-19 1985-10-31 Franz Dipl.-Ing. Innsbruck Bucher Bewehrungsmatte od.dgl.
DE3524700A1 (de) * 1984-07-19 1986-01-30 Vorspann-Technik GmbH, Salzburg Verankerungsknoten an einer spannlitze und verfahren zum herstellen desselben sowie vorrichtung zur durchfuehrung des verfahrens

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR886983A (fr) * 1940-12-30 1943-10-29 Procédé pour l'ancrage des fils d'armature pré-tendus dans la fabrication du béton armé
FR887116A (fr) * 1942-09-21 1943-11-04 Procédé pour augmenter la résistance d'adhérence de fils d'acier dans la confection de pièces en béton à tension préalable
FR1169408A (fr) * 1957-03-13 1958-12-29 Fer de mise en tension servant d'armature pour le béton armé
DE1509046A1 (de) * 1963-03-15 1969-03-13 Baustahlgewebe Gmbh Baustahlmatten
DE2354132A1 (de) * 1973-10-29 1975-05-07 Rehm Gallus Betonstahlmatte
FR2270410A1 (en) * 1974-03-05 1975-12-05 Vigliano Marcel Steel reinforcement for concrete slabs - has side by side coils with turns interconnected, overlapping or tangential
DE3513235A1 (de) * 1984-04-19 1985-10-31 Franz Dipl.-Ing. Innsbruck Bucher Bewehrungsmatte od.dgl.
DE3524700A1 (de) * 1984-07-19 1986-01-30 Vorspann-Technik GmbH, Salzburg Verankerungsknoten an einer spannlitze und verfahren zum herstellen desselben sowie vorrichtung zur durchfuehrung des verfahrens

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2011107848A2 (fr) * 2010-03-02 2011-09-09 Anil Krishna Kar Barre de renfort améliorée pour prolongation de la durée de vie de structures en béton armé
WO2011107848A3 (fr) * 2010-03-02 2011-11-03 Anil Krishna Kar Barre de renfort améliorée pour prolongation de la durée de vie de structures en béton armé
CN102782229A (zh) * 2010-03-02 2012-11-14 阿尼尔·克里希纳·卡尔 用于提高钢筋混凝土结构寿命的改良加强筋
CN102782229B (zh) * 2010-03-02 2016-03-02 阿尼尔·克里希纳·卡尔 用于提高钢筋混凝土结构寿命的改良加强筋
FR3104569A1 (fr) 2019-12-16 2021-06-18 Saint-Gobain Adfors Structure textile à base de fibres de verre avec revêtement parylène
WO2021123583A1 (fr) 2019-12-16 2021-06-24 1/1Saint-Gobain Adfors Structure textile à base de fibres de verre avec revêtement parylène

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