EP0421925A2 - Cage d'armature - Google Patents

Cage d'armature Download PDF

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Publication number
EP0421925A2
EP0421925A2 EP90810691A EP90810691A EP0421925A2 EP 0421925 A2 EP0421925 A2 EP 0421925A2 EP 90810691 A EP90810691 A EP 90810691A EP 90810691 A EP90810691 A EP 90810691A EP 0421925 A2 EP0421925 A2 EP 0421925A2
Authority
EP
European Patent Office
Prior art keywords
legs
bars
reinforcement
cross bars
shaped
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
EP90810691A
Other languages
German (de)
English (en)
Other versions
EP0421925A3 (en
EP0421925B1 (fr
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, i.e. of essentially one-dimensional [1D] or two-dimensional [2D] extent
    • 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 [3D] 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 very 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 perpendicular, round or curved wall.
  • the legs of the bars bent at right angles are connected by binding with flat nets on the wall and / or floor slab.
  • the disadvantage of this solution can be seen in the fact 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, which are bent at right angles, they twist. The legs of the reinforcement bars bent at right angles will then point in all directions. The next step would be to straighten all the legs accordingly by hand. Labor savings are therefore not achieved.
  • a reinforcement basket for creating a connection between the reinforcements of a floor slab and a wall is known in 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 cross-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 many different 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 with 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 perpendicular to it.
  • the floor slab 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 bars 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.
  • the second free leg 22 running parallel to the first is clearly visible.
  • 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 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 clearly seen 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 bend runs approximately in the middle of the length of the long cross bars 1 line 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 in one plane, the already described plane E1.
  • the welding and victory plan according to FIG. 2 is used 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 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 designs 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 of up to a minimum of 2 m 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.
  • the described reinforcement baskets are the first to solve the problem mentioned at the beginning.

Landscapes

  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Reinforcement Elements For Buildings (AREA)
  • Rolling Contact Bearings (AREA)
  • Manufacture Of Alloys Or Alloy Compounds (AREA)
  • Moulding By Coating Moulds (AREA)
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
CH3617/89 1989-10-04
CH3617/89A CH678960A5 (fr) 1989-10-04 1989-10-04

Publications (3)

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

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0808960A1 (fr) * 1996-05-22 1997-11-26 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

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0808960A1 (fr) * 1996-05-22 1997-11-26 Gérard Matile Cage d'armature préfabriquée

Also Published As

Publication number Publication date
CH678960A5 (fr) 1991-11-29
EP0421925A3 (en) 1992-03-18
DE59004213D1 (de) 1994-02-24
EP0421925B1 (fr) 1994-01-12
ATE100167T1 (de) 1994-01-15

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