EP0421925B1 - Cage d'armature - Google Patents

Cage d'armature Download PDF

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Publication number
EP0421925B1
EP0421925B1 EP90810691A EP90810691A EP0421925B1 EP 0421925 B1 EP0421925 B1 EP 0421925B1 EP 90810691 A EP90810691 A EP 90810691A EP 90810691 A EP90810691 A EP 90810691A EP 0421925 B1 EP0421925 B1 EP 0421925B1
Authority
EP
European Patent Office
Prior art keywords
bent
plane
legs
bars
reinforcing cage
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
EP90810691A
Other languages
German (de)
English (en)
Other versions
EP0421925A2 (fr
EP0421925A3 (en
Inventor
Alain Walroff
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.)
Davum SA Crissier
Original Assignee
Davum SA Crissier
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 Davum SA Crissier filed Critical Davum SA Crissier
Priority to AT90810691T priority Critical patent/ATE100167T1/de
Publication of EP0421925A2 publication Critical patent/EP0421925A2/fr
Publication of EP0421925A3 publication Critical patent/EP0421925A3/de
Application granted granted Critical
Publication of EP0421925B1 publication Critical patent/EP0421925B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • E04C5/02—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

Definitions

  • reinforcement nets are not only understood to be flat structures, but more generally three-dimensional structures formed from such networks by means of bends.
  • reinforcement cage is also used.
  • Conventionally, such a reinforcement cage is often formed on the building site at the place of installation and tied with special wires. This is extremely labor-intensive, but has the advantage that the reinforcement cage can be easily adapted to the particular building-specific circumstances.
  • prefabricated reinforcement baskets must therefore be carefully thought out so that they can be used in as many different ways as possible despite their specified shape and thus their use.
  • the present invention provides a reinforcing cage for creating the connection between a floor slab and a round or arched wall standing vertically thereon.
  • the legs of the bars bent at right angles are connected by binding to flat nets on the wall and / or floor slab.
  • the main disadvantage of this solution is that the ironlayer takes up relatively little work.
  • the reinforcement network described offers little help, in particular when creating a floor slab, which usually has an upper and a lower armouring.
  • the use for connecting a floor slab to a curved or curved wall can hardly be achieved with such reinforcement baskets. If you bend the crossbar that connects the reinforcement bars bent at right angles, it twists. The legs of the reinforcement bars bent at right angles will then point in all directions. As a next step, you would have to straighten all the legs by hand. There is therefore no labor saving.
  • a reinforcing basket for creating a connection between the reinforcements of a floor slab and a wall in which the basket consist of a number of long, parallel, equally spaced, right-angled transverse bars, the ends of which are each connected to one another by a longitudinal bar, such as from right-angled, short short bars arranged at least approximately centrally between these long transverse bars.
  • the one, short leg of the short crossbars runs in the plane of one of the legs of the long crossbar while the longer leg of the short crossbar is arranged parallel to the other leg of the longer crossbar.
  • Such an element can be used in a variety of ways and is easily connectable to the flat nets in the floor slab as well as in the wall to be connected.
  • the element is extremely rigid and is only suitable for connecting the floor slab to a straight wall.
  • the present invention has for its object to improve such a versatile element so that it is also suitable for creating the connection of a floor slab with a curved or curved wall running perpendicular to it.
  • the floor cover plate P is flat as usual.
  • the adjoining wall W which is perpendicular to the floor slab, is curved. However, this is not evident in the sectional view.
  • the flat reinforcement nets adjoining the element have been left out in order not to stress the drawing too much.
  • the floor cover plate P usually has two layers of flat reinforcement nets arranged one above the other. Depending on the thickness of the wall, the wall W standing vertically thereon only has a correspondingly curved flat reinforcement network or, in the case of greater thickness, two reinforcement networks running parallel to one another, similar to the floor cover plate.
  • the reinforcement cage according to the invention essentially consists of two differently curved, differently long, but parallel to each other transverse bars and connecting longitudinal rods to each other.
  • the long crossbar 1 which is closer to the cutting plane, is initially visible. It is bent in an L-shape and has a leg 10 which comes to rest in the floor cover plate P when the element is installed. The other, perpendicular to the leg 10 leg 11 is in the installed position of the element in the wall W.
  • a shorter cross bar 2 is arranged in front of it in relation to the plane of the drawing. It is bent in a U-shape and lies with respect to the former long crossbar 1 in such a way that one leg 21 is directly aligned with the leg 11 of the long crossbar.
  • a prefabricated reinforcement cage consists of a large number of long, L-shaped cross bars alternating with shorter, U-shaped cross bars 2.
  • the legs 11 of the long cross bars and the legs 21 of the short cross bars lie in a common plane E1. All of the legs 11 and 21 lying in this plane E1 are connected to one another by at least two, in the example shown, however three longitudinal bars 3, 4, 5.
  • the thigh 21 of the shorter cross bars 2 are shorter than the legs 11 of the long cross bars 1. This can be seen clearly from the welding and bending plans to be described below.
  • the two longitudinal bars 4 and 5 which are arranged somewhat further away from the bend, are approximately 5-20 cm perpendicularly above the legs 10 of the long crossbars welded on at a distance. Their arrangement is chosen so that both longitudinal bars are still in the area of the floor slab.
  • the network of the upper reinforcement is fastened to the free legs 22 of the short cross bars 2 which are directed vertically upwards. Since these legs 21 are not connected to one another by longitudinal bars, the reinforcement nets can be introduced onto them from above.
  • the reinforcement cage can be deformed out of plane E1 when laying in accordance with the desired curvature of the wall to be created. This desired deformation of the reinforcement cage can take place on the construction site itself or can already be carried out in the production plant.
  • FIGS. 2, 3 and 4 illustrate what has been predicted.
  • the two bending lines m and b are drawn in dashed lines in the drawing, both of which run parallel to the longitudinal bars.
  • the first bending line runs approximately in the middle of the length of the long cross bars 1 m around which all cross bars 1 and 2 are bent by 90 degrees.
  • the second bending line b extends at a relatively short distance therefrom, by which only the short transverse bars 2 are bent upward again by 90 degrees.
  • all the longitudinal bars 3, 4 and 5 and 6 come to the right of the bending line m into one plane, the plane E1 already described.
  • the welding and victory plan according to FIG. 2 serves to manufacture a reinforcing cage which has a non-bendable area A and a bendable area B. In the bendable area B, the legs 10 of the long cross bars 1 are not connected to one another. In the non-bendable area A, however, there is a stiffening longitudinal bar 7, which is welded to the ends of the legs 10, the L-shaped long cross bars 1.
  • the legs 10 of the long crossbars 1 with the two longitudinal bars 3 and 7 thus form a warp-resistant network in the plane E2, while the legs 11 running perpendicularly thereto by means of the longitudinal bars 3-6 again form a warp-resistant network, which lies in level E1.
  • the reinforcement cage is divided in the longitudinal direction into two areas, one of which is relatively rigid and torsionally rigid, and the other half forms the bendable area.
  • FIG. 4 shows an embodiment in which the bendable region B forms an intermediate piece of the entire reinforcement cage. This area is followed by a relatively rigid, torsionally rigid area A 'or A''on both sides.
  • the bendable areas according to these versions are particularly suitable for tight bending radii of at least 1m.
  • the embodiment according to FIG. 5 differs only in that the bendable region extends below the entire network.
  • FIG. 3 shows a welding and bending plan of a reinforcement cage which can be bent over its entire length. However, it is less flexible. With such reinforcement baskets, bending radii up to a minimum of 2m can be formed. Its use is shown in FIG. 6, which shows a laying plan for such an element.
  • the special thing about the reinforcement cage according to FIG. 3 is that each of the legs two L-shaped adjacent cross bars 10 are each interconnected by means of bar sections. This gives the entire reinforcement cage increased strength, but limits the bendability of the cage. Such a reinforcement cage is therefore only suitable for forming larger radii. This is particularly common in silo construction. In production, the procedure is such that first a longitudinal rod is welded on, which connects all the legs 10 to one another, and then the necessary cutouts are cut out, so that the rod sections 8 form.
  • the laying plan according to FIG. 7 shows the use of a reinforcement cage according to the welding. and the bending plan according to FIG. 3 has been produced.

Landscapes

  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Reinforcement Elements For Buildings (AREA)
  • Moulding By Coating Moulds (AREA)
  • Rolling Contact Bearings (AREA)
  • Manufacture Of Alloys Or Alloy Compounds (AREA)

Claims (4)

  1. Cage d'armature pour relier les armatures d'une plaque de plancher (P) avec celles d'une paroi (W), comprenant une pluralité de barres transversales longues (1) en forme de L posées alternativement dans le sens longitudinal de la cage d'armature, d'une part, et des barres transversales (2) courtes, en forme de U, une branche (11) de chaque barre transversale en forme de L et une branche (21) de chaque barre transversale en forme de U se situant sur un premier plan commun (E1),
    caractérisée en ce qu'elle présente au moins une zone (B) pouvant être pliée dans le sens longitudinal, dans laquelle toutes les barres transversales (1, 2) ne sont reliées entre elles que par des barres longitudinales (3 à 5) orientées sur le premier plan (E1) sur lequel se trouvent les branches (11) des barres transversales en forme de L et les branches (21) des barres transversales en forme de U.
  2. Cage d'armature selon la revendication 1, caractérisée en ce qu'une barre longitudinale complémentaire (6) est disposée sur le premier plan (E1), ne reliant que les extrémités libres des branches (11) des barres transversales longues (1) en forme de L.
  3. Cage d'armature selon la revendication 2, caractérisée en ce qu'elle présente au moins une zone (A) droite et relativement rigide dans laquelle se trouvent les extrémités des branches (10) des barres transversales (1) en forme de L,situées sur un deuxième plan (E2) orienté dans le sens perpendiculaire par rapport au premier plan (E1), les barres transversales (1) étant reliées au moyen d'une barre longitudinale complémentaire (7).
  4. Cage d'armature selon la revendication 2, caractérisée en ce que les branches (10) de deux barres transversales (1) adjacentes en forme de L, situées sur un deuxième plan (E2) perpendiculaire par rapport à un premier plan, sont reliées entre elles au moyen de sections de barres (8) pour constituer des paires.
EP90810691A 1989-10-04 1990-09-12 Cage d'armature Expired - Lifetime EP0421925B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT90810691T ATE100167T1 (de) 1989-10-04 1990-09-12 Armierungskorb.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH3617/89A CH678960A5 (fr) 1989-10-04 1989-10-04
CH3617/89 1989-10-04

Publications (3)

Publication Number Publication Date
EP0421925A2 EP0421925A2 (fr) 1991-04-10
EP0421925A3 EP0421925A3 (en) 1992-03-18
EP0421925B1 true EP0421925B1 (fr) 1994-01-12

Family

ID=4259829

Family Applications (1)

Application Number Title Priority Date Filing Date
EP90810691A Expired - Lifetime EP0421925B1 (fr) 1989-10-04 1990-09-12 Cage d'armature

Country Status (4)

Country Link
EP (1) EP0421925B1 (fr)
AT (1) ATE100167T1 (fr)
CH (1) CH678960A5 (fr)
DE (1) DE59004213D1 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0808960B1 (fr) * 1996-05-22 2000-06-28 Gérard Matile Cage d'armature préfabriquée

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1344294A (en) * 1970-05-12 1974-01-16 Oroschakoff G Reinforcement for reinforced concrete structures
FR2422782A1 (fr) * 1978-04-14 1979-11-09 Armel Armature pour intersections de voiles en beton
DE8712749U1 (de) * 1986-10-30 1987-12-10 EGCO AG, Weite Armierungskorb

Also Published As

Publication number Publication date
ATE100167T1 (de) 1994-01-15
EP0421925A2 (fr) 1991-04-10
DE59004213D1 (de) 1994-02-24
EP0421925A3 (en) 1992-03-18
CH678960A5 (fr) 1991-11-29

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