EP4030013A1 - Élément d'armature destiné à l'augmentation de la résistance à la force transversale - Google Patents

Élément d'armature destiné à l'augmentation de la résistance à la force transversale Download PDF

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Publication number
EP4030013A1
EP4030013A1 EP21217043.5A EP21217043A EP4030013A1 EP 4030013 A1 EP4030013 A1 EP 4030013A1 EP 21217043 A EP21217043 A EP 21217043A EP 4030013 A1 EP4030013 A1 EP 4030013A1
Authority
EP
European Patent Office
Prior art keywords
leg
rungs
reinforcement element
reinforcement
chords
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.)
Granted
Application number
EP21217043.5A
Other languages
German (de)
English (en)
Other versions
EP4030013C0 (fr
EP4030013B1 (fr
Inventor
Martin Ritter
Thomas Anhell
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.)
AVI Alpenlaendische Veredelungs Industrie GmbH
Original Assignee
AVI Alpenlaendische Veredelungs Industrie 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 AVI Alpenlaendische Veredelungs Industrie GmbH filed Critical AVI Alpenlaendische Veredelungs Industrie GmbH
Publication of EP4030013A1 publication Critical patent/EP4030013A1/fr
Application granted granted Critical
Publication of EP4030013C0 publication Critical patent/EP4030013C0/fr
Publication of EP4030013B1 publication Critical patent/EP4030013B1/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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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
    • E04C5/06—Reinforcing elements of metal, e.g. with non-structural coatings of high bending resistance, i.e. of essentially three-dimensional extent, e.g. lattice girders
    • E04C5/0645—Shear reinforcements, e.g. shearheads for floor slabs
    • 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
    • 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
    • E04C5/06—Reinforcing elements of metal, e.g. with non-structural coatings of high bending resistance, i.e. of essentially three-dimensional extent, e.g. lattice girders
    • E04C5/0604—Prismatic or cylindrical reinforcement cages composed of longitudinal bars and open or closed stirrup rods
    • E04C5/0622—Open cages, e.g. connecting stirrup baskets
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
    • E04C5/00—Reinforcing elements, e.g. for concrete; Auxiliary elements therefor
    • E04C5/16—Auxiliary parts for reinforcements, e.g. connectors, spacers, stirrups
    • E04C5/18—Spacers of metal or substantially of metal
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
    • E04C5/00—Reinforcing elements, e.g. for concrete; Auxiliary elements therefor
    • E04C5/16—Auxiliary parts for reinforcements, e.g. connectors, spacers, stirrups
    • E04C5/20—Auxiliary parts for reinforcements, e.g. connectors, spacers, stirrups of material other than metal or with only additional metal parts, e.g. concrete or plastics spacers with metal binding wires
    • E04C5/205—Ladder or strip spacers

Definitions

  • the invention relates to a reinforcement element for absorbing transverse forces, having a multiplicity of rungs and belts which connect the rungs to form an automatically standing shape of the reinforcement element.
  • reinforcement stirrups are also used, which, however, have the disadvantage that they have to be guided around longitudinal reinforcements, which means that a considerable amount of work is required for threading the Reinforcement stirrup brings with it.
  • Shear reinforcement elements become known, which are designed with the structural features of a reinforcement element of the type mentioned.
  • the object of the invention is to specify a shear force reinforcement element that can be designed to adequately absorb shear forces in a reinforced concrete slab and is easier to handle on a construction site than the shear force brackets known from the prior art.
  • the reinforcement element is designed in a U-shape in plan view of its automatically standing shape.
  • Such a reinforcement element initially offers the advantage that it can be designed with the rungs and the straps connecting them in such a way that very good absorption of transverse forces in a reinforced concrete slab is possible.
  • the reinforcement element can be handled very easily because it stands by itself.
  • a reinforcement element according to the invention can be easily placed between two reinforcement layers and, after being placed on the lower or, in the case of walls, outer reinforcement layers, also serves as a spacer for the upper ones or in the case of walls, inner reinforcement layers.
  • the rungs provided can in principle run in any desired manner, but are advantageously arranged essentially vertically.
  • the rungs can have a uniform length and in particular be of the same length.
  • the rungs can also be viewed as cross wires.
  • the rungs can in particular be arranged in such a way that their ends run in one plane or one plane at least on one side, preferably on both sides.
  • the chords are arranged essentially horizontally.
  • the straps can run approximately in the area of the first ends and/or second ends of the rungs. It is expedient that at least one belt runs approximately in the area of the first ends of the rungs and at least one second belt runs in the area of the second ends of the rungs or is arranged on the rungs in these areas.
  • double belts can also be provided for this purpose, ie two belts in each case in the area of the first ends and two belts in each case in the area of the second ends.
  • the rungs are designed so long and a distance within the double chords is dimensioned such that a distance between the double chords is many times greater than a distance between the chords of a double chord. This results in a stable design of the reinforcement element with good force absorption and dissipation.
  • the rungs are usually cohesively connected to the belts, in particular by welding. This enables simple production of a reinforcement element, which can also be done by machine.
  • the individual rungs are welded to the double chords lying in one plane.
  • the ladder-shaped element then present in this way is then bent around a mandrel to form a U-shape, as a result of which the reinforcement element is produced.
  • the rungs and the chords can each be formed from a steel, optionally also from the same steel.
  • the steel quality depends on the respective application or requirements and high-quality stainless steels can be provided.
  • the reinforcement element is advantageously shaped in such a way that the U-shaped configuration has a first leg and a second leg. It can be provided, in particular, that the first leg and the second leg have the same length and are connected by a section in the shape of a circular arc.
  • a particularly high degree of symmetry is achieved by appropriate training.
  • the two halves of the reinforcement element are then designed to be mirror-symmetrical to one another. This high level of symmetry in turn brings advantages when positioning the reinforcement element normal to a flat wall, since the individual rungs analog legs then each have the same distance to the wall, but also have the same distance between rungs of opposite legs of a reinforcement element.
  • first leg and the second leg run straight in a plan view.
  • first leg runs parallel to the second leg in a plan view.
  • the individual rungs can be arranged at any spacing on the first leg and on the second leg and do not necessarily have to have a specific symmetry. However, it is preferred that the rungs on the individual legs each have the same distance from one another. This distance between individual rungs on the first leg can be the same as on the second leg. Rung spacings that deviate from this can be provided especially in the region of the arcuate section that connects the first leg to the second leg; However, no sprouts can be provided in this section in order to save material. In addition, it is also possible for a rung on the first leg to be associated with a rung on the second leg, so that the associated rungs lie in a plane running perpendicularly to the legs. The two legs are then designed identically.
  • the rungs are usually arranged in such a way that their first ends lie in one plane and, given the same length of the rungs, this also applies to their second ends, which then lie in a parallel plane.
  • the two legs are preferably arranged relatively close to one another.
  • a radius of the circular arc or of the circular arc-shaped section is dimensioned in such a way that the legs are spaced apart from one another by no more than 15 cm, in particular less than 10 cm. This can be achieved if the arcuate section has a corresponding radius or, if it is designed as a semicircle, the diameter of the semicircle is dimensioned accordingly.
  • a reinforcement element 1 according to the invention is shown in plan view.
  • the reinforcement element 1 has a first leg 6 and a second leg 7 .
  • the first leg 6 and the second leg 7 are connected to one another by a section 8 in the shape of a circular arc.
  • the reinforcement element 1 thus consists of three sections, namely the first leg 6, the second leg 7 and the connecting, arc-shaped section 8.
  • the first leg 6 and the second leg 7 run parallel to one another in plan view.
  • the arcuate section 8 is formed with a relatively small radius, so that the first leg 6 and the second leg 7 are not too far apart from one another, in a manner to be explained below.
  • the arcuate section 8 can be in the form of a semicircle with a diameter 10 which determines the distance between the legs 6 , 7 .
  • the reinforcement element 1 is formed from a plurality of rungs 2, which preferably, as shown, have the same lengths and are basically identical in design.
  • the rungs 2 are preferably made of steel.
  • the rungs 2 are connected to at least one belt 3 at the head end or at a first end 4 .
  • the rungs 2 are connected to at least one further belt 3 on the ground side or at a second end 5 .
  • the individual straps 3 can in turn be made of steel, for example of the same steel as the rungs 2 .
  • the straps 3 arranged on the head side and on the bottom side can basically be of identical design.
  • double belts are provided both on the head side and on the bottom side.
  • a distance between the double chords is significantly greater, preferably a multiple, for example more than two or three times, than a distance between the chords 3 of a double chord.
  • the distances between the straps 3 of a double strap can be approximately the same on the head side and on the bottom side.
  • a lower belt 3 can be arranged on the rungs 2 in such a way that it can come into contact with a floor.
  • the rungs 2 of the first leg 6 are arranged as far as possible opposite the rungs 2 of the second leg 7, so that the rungs 2 lie in a plane 9 in a section transverse to the legs 6, 7 or their longitudinal axes, as is shown in an example in 3 is shown.
  • the radius of the arcuate section 8 is preferably kept in such a way that a distance between the first leg 6 and the second leg 7 is less than four times the distance between the rungs 2 of a leg 6 , 7 .
  • a correspondingly close arrangement of the legs 6, 7 to one another allows good force absorption or dissipation in a small space.
  • the reinforcement element 1 can also simply be arranged parallel or normal to a wall or to a wall to be constructed, without special precautions being taken for the rungs 2 to be distributed as evenly as possible would have to. Rather, this can already be achieved by the mere filing of the reinforcement element 1, since this with appropriate symmetry is formed. This would not be possible with a V-shaped arrangement which, if at all feasible, would require a complex arrangement of various elements.
  • the rungs 2 can run not only along the legs 6, 7, but also in the area of the arcuate section 8, although this could in principle also be designed without rungs.
  • a corresponding design results from a preferred production variant, according to which rungs 2 lying in one plane are first welded to the double chords to form a ladder-shaped structure, after which the ladder-shaped structure is bent around a mandrel, for example, to form the reinforcement element 1 .
  • Such a method can easily be automated mechanically and carried out in a simple manner if a rung 2 is also provided in the arcuate section 8 with the same spacing from other rungs 2 as in the other areas. Otherwise, this rung 2 would have to be removed, but then the saving in material is only small.
EP21217043.5A 2021-01-13 2021-12-22 Élément d'armature destiné à l'augmentation de la résistance à la force transversale Active EP4030013B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
ATGM50004/2021U AT17497U1 (de) 2021-01-13 2021-01-13 Bewehrungselement zur Erhöhung eines Querkraftwiderstandes

Publications (3)

Publication Number Publication Date
EP4030013A1 true EP4030013A1 (fr) 2022-07-20
EP4030013C0 EP4030013C0 (fr) 2023-11-08
EP4030013B1 EP4030013B1 (fr) 2023-11-08

Family

ID=79020892

Family Applications (1)

Application Number Title Priority Date Filing Date
EP21217043.5A Active EP4030013B1 (fr) 2021-01-13 2021-12-22 Élément d'armature destiné à l'augmentation de la résistance à la force transversale

Country Status (2)

Country Link
EP (1) EP4030013B1 (fr)
AT (1) AT17497U1 (fr)

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1185545A (en) * 1966-07-23 1970-03-25 Baustahlgewebe Gmbh Improvements in or relating to Stirrup-Shaped Concrete Reinforcements
DE3523656A1 (de) 1984-07-24 1986-02-06 AVI Alpenländische Veredelungs-Industrie Gesellschaft mbH, Graz, Steiermark Schubbewehrungssystem fuer flaechentragwerke
WO1987002087A1 (fr) * 1985-09-27 1987-04-09 Internationella Siporex Ab Cage d'armature destinee a etre utilisee dans des moules lors du coulage d'un materiau en pierre artificielle, et procede de fabrication de la cage d'armature
DE8901350U1 (fr) * 1989-02-07 1989-03-23 Hiendl, Heribert, 8440 Straubing, De
JP2002266466A (ja) * 2001-03-07 2002-09-18 Sekisui House Ltd 定着筋

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH642131A5 (en) * 1981-01-19 1984-03-30 Fischer Draht Ag Connection cage for reinforcing reinforced-concrete structures and the use thereof
DE9409138U1 (de) * 1994-06-06 1994-08-04 Dausend Hans Werner Abstandhalter für die obere Bewehrung
CH693644A5 (de) * 1999-02-12 2003-11-28 Ankaba Ag Bewehrungskonstruktion zur Einlage in Schubeinleitungsbereiche von Betondecken.

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1185545A (en) * 1966-07-23 1970-03-25 Baustahlgewebe Gmbh Improvements in or relating to Stirrup-Shaped Concrete Reinforcements
DE3523656A1 (de) 1984-07-24 1986-02-06 AVI Alpenländische Veredelungs-Industrie Gesellschaft mbH, Graz, Steiermark Schubbewehrungssystem fuer flaechentragwerke
WO1987002087A1 (fr) * 1985-09-27 1987-04-09 Internationella Siporex Ab Cage d'armature destinee a etre utilisee dans des moules lors du coulage d'un materiau en pierre artificielle, et procede de fabrication de la cage d'armature
DE8901350U1 (fr) * 1989-02-07 1989-03-23 Hiendl, Heribert, 8440 Straubing, De
JP2002266466A (ja) * 2001-03-07 2002-09-18 Sekisui House Ltd 定着筋

Also Published As

Publication number Publication date
AT17497U1 (de) 2022-06-15
EP4030013C0 (fr) 2023-11-08
EP4030013B1 (fr) 2023-11-08

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