EP0122316B1 - Elément d'armature en treillis d'acier - Google Patents

Elément d'armature en treillis d'acier Download PDF

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Publication number
EP0122316B1
EP0122316B1 EP83106868A EP83106868A EP0122316B1 EP 0122316 B1 EP0122316 B1 EP 0122316B1 EP 83106868 A EP83106868 A EP 83106868A EP 83106868 A EP83106868 A EP 83106868A EP 0122316 B1 EP0122316 B1 EP 0122316B1
Authority
EP
European Patent Office
Prior art keywords
reinforcement
mats
welded
hoops
spacing
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
Application number
EP83106868A
Other languages
German (de)
English (en)
Other versions
EP0122316A2 (fr
EP0122316A3 (en
Inventor
Michael Dick
Wilhelm Zechmair
Peter Bayer
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.)
Ytong AG
Original Assignee
Ytong AG
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 Ytong AG filed Critical Ytong AG
Priority to AT83106868T priority Critical patent/ATE42365T1/de
Publication of EP0122316A2 publication Critical patent/EP0122316A2/fr
Publication of EP0122316A3 publication Critical patent/EP0122316A3/de
Application granted granted Critical
Publication of EP0122316B1 publication Critical patent/EP0122316B1/fr
Expired legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21F—WORKING OR PROCESSING OF METAL WIRE
    • B21F27/00—Making wire network, i.e. wire nets
    • B21F27/12—Making special types or portions of network by methods or means specially adapted therefor
    • B21F27/20—Making special types or portions of network by methods or means specially adapted therefor of plaster-carrying network
    • 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

Definitions

  • the invention relates to a reinforcement body for, in particular, steam-hardened gas-concrete components, with at least two welded reinforcing steel mats arranged at a distance from one another, the mats being constructed from longitudinal longitudinal bars and transverse transverse bars and the transverse bars being welded to the longitudinal bars at the crossing points, the mats being bent out , weldable steel rods shaped, welded to rods of the mats spacer brackets are kept at a distance, and openings are formed on the brackets for the penetration of lifting needles.
  • the invention relates to a device for producing the reinforcement body.
  • DE-GM-7 819 077 describes such a reinforcement body, the mats of which are kept at a distance by means of sheet metal strips welded to the cross bars.
  • The, viewed in the side view, approximately U-shaped sheet metal strips have in their free end region of their U-legs stops or plug-in openings with which they are positioned on a transverse and longitudinal bar, so that the U-base web is located in between the mats Interior has and the U-legs are welded to the cross bars.
  • the shape of the sheet metal strip is very labor intensive, so that the sheet metal strip forms a relatively expensive part. Its positioning for welding, in particular automated positioning, is also labor-intensive, so that the sheet metal strip has not been able to assert itself for reasons of cost.
  • bracket types corresponding to these dimensions must also be kept in stock, which requires complex storage.
  • the metal strip represents a foreign part of a reinforcement body, the manufacture of which requires the use of a different technique compared to the manufacture of the mats.
  • each spacer consists of two, viewed in side view, trapezoidal brackets, the free legs of one bracket from the outside on the outer longitudinal bar of one mat and, opposite, the free legs of the other bracket from the outside to the outer longitudinal bar of the other Mat are welded in such a way that the base of the respective trapezoidal shape faces the opposite mat, the bases overlap, the legs are welded at the points of contact and the overlapping areas form the insertion opening for a lifting needle.
  • the free legs of the stirrups must abut the longitudinal bars from the outside. This means that the stirrups cannot be arranged within the reinforcement body, although this is desirable in many cases so that the reinforcement means are not in the immediate vicinity of the surface of the reinforced component.
  • brackets also have to be prefabricated, the connection of the two brackets having to be made very precisely because it creates the plug hole for the lifting needle, which has to be positioned very precisely in the reinforcement body.
  • spacers of different sizes must also be kept in stock.
  • the object of the invention is to produce a reinforcement body which is safe to handle and to provide a device with which the manufacture of the reinforcement bodies can be automated, the automation being intended to include that no changeover has to be carried out if reinforcement bodies of a certain size are used instead of reinforcement bodies other size to be produced.
  • the choice of the new special bracket shapes has the consequence that the bracket can be placed anywhere within the reinforcement body. This in turn brings the surprising effect that the distance from opposite brackets can be the same in certain limits in a large reinforcement body as in a small reinforcement body, ie in a large reinforcement body the brackets sit deeper inside than in a small body.
  • the same spacing of the stirrups in reinforcement bodies of different sizes means that only one type of lifting needle, which is adjusted to the specific spacing of the stirrups, needs to be used. So far, one had to use differently long lifting needles for different sized reinforcement bodies. Lifting needles are relatively expensive. Through the invention Number can be significantly reduced. It is no longer necessary to change the needles, so that the considerable changeover time previously required is eliminated.
  • the relatively uncomplicated shape of the new stirrups makes it possible to standardize the distance for reinforcement bodies of different sizes. In this respect, it is possible to enrich the manufacturing technique of such reinforcement bodies by leaps and bounds with relatively simple means.
  • C-shaped spacer brackets 1 are used, which are bent from a rebar.
  • the brackets have an upper web 2, a lower web 3 and the spacer web 4.
  • the thickness of the bar material of the bracket 1 suitably corresponds to the thickness of the longitudinal bars 5 and / or the transverse bars 6 of a reinforcement mat 7, 8.
  • a variant of the invention provides a spacer bracket 1a, in which two C-shaped spacer brackets are made in one piece via a spacer 3B (Fig. 2).
  • FIGS. 1 and 2 with spacers according to FIGS. 1 and 2 held at a distance preferably consist of longitudinal rods 5 arranged parallel to one another in a plane and transverse rods 6 also running parallel to one another.
  • the transverse and longitudinal rods are to form a mat the crossing points welded together (Fig. 3).
  • the cross bars can be arranged inside or outside.
  • the brackets 1, 1 are arranged in the space between the mats 7, 8, the horizontal webs 2 and 3 being preferably welded to the longitudinal mat 5 of the upper mat 7 and the lower mat 8 by spot welding.
  • the webs 2 and 3 run parallel to the cross bars 6, so that the webs 2 and 3 cross at right angles with the longitudinal bars 5 to which they are attached (see FIG. 3 at 9 and 10).
  • the C-shape of the spacer bracket can e.g. B. point outwards, i.e. the spacer web 4 lies deeper inside the reinforcement body than the webs 2 and 3 (see FIG. 3 at 9). It can e.g. B. but also the reverse positioning can be selected; the respective choice of these positioning options depends on the desired distance of the opposite brackets. If the crossbars 6 are on the inside and the webs 2, 3 are arranged in contact with a crossbar, it is expedient to additionally fix the brackets to the crossbar 6 by welding. This brings a considerable increase in the stability of the reinforcement body.
  • the invention makes it possible to provide brackets according to FIG. 1 at any point in the longitudinal direction of the reinforcement body. There are no limits in the transverse direction either, because the possibility of choosing the length of the webs 2 and 3 and / or the possibility of choosing a longitudinal bar located in the transverse direction deeper inside the reinforcement body for fixing the bracket means that any desired position of the spacer web 4 in Transverse direction can be guaranteed.
  • bracket 1a can be positioned.
  • the brackets 1 and 1a can also be arranged with their webs 2, 3 parallel to the longitudinal bars 5, with cross bars 6, optionally also additionally with longitudinal bars 5, welded at the crossing points (see arrows 11 and 12 in FIG. 3) .
  • brackets 1 are always arranged opposite one another (see FIG. 3), which is ensured in the case of the brackets 1a by the one-piece embodiment.
  • a flag 14 is fastened in a manner known per se with a hole 13 (see FIG. 3) which can be penetrated by the shaft of a lifting needle 15 (FIG. 5), which is known per se Is inserted from a narrow side into the reinforcement body 18 through a hole 13 to the opposite spacer 4 of a bracket 1, 1a through the hole 13 of the flag 14 arranged there, the positioning of the flags 14 corresponding to this required plugging option.
  • the lifting needle 15 is supported in a support beam 16 which bridges a casting mold 17. In the mold z. B. poured the gas concrete mix, so that the reinforcement body 18 is immersed in the casting compound.
  • Fig. 4 shows, for example, the location or arrangement of the reinforcement body 18 in a component 19 made of z. B. gas concrete, the webs 2, 3 of the C-shaped spacer brackets 1 are arranged facing inwards.
  • the new shape of the bracket 1.1a means that the automated production of the reinforcement body 18 can be considerably simplified because the bracket 1.1a can be bent and cut by simple bending processes from a reinforcement wire to be pulled off a roll.
  • a bending device suitable for this is expediently arranged upstream of an automatically operating welding device, the brackets in the welding device being welded between two prefabricated reinforcement mats held in parallel. Since the bending device can feed the welding device directly with brackets 1.1a, it is no longer necessary to prefabricate the brackets and store them temporarily.
  • the bending device can preferably be adjusted in such a way that it produces stirrups of different sizes, so that reinforcement bodies of different thicknesses can be produced with the welding device without retrofitting; because the welding device is able, in a manner known per se, to automatically bring reinforcement mats to be connected to one another into a reinforcement body at different distances before welding.
  • the transport and positioning devices for the brackets work independently of the size of the brackets, so that there is also no need to retrofit. The invention thus also brings about a leap in technology.
  • the welding device 25 shown schematically in FIG. 6 for producing a reinforcement body 18 has an upstream wire bending device 20 which periodically pulls a reinforcement wire 21 from the roll (not shown) using a tractor device 23 which can be moved in the direction of the double arrow 24.
  • the wire 21 is straightened in a manner known per se with the straightening rollers 22 arranged upstream of the tractor device 23.
  • the length of the path of the tractor device 23 can be selected.
  • the tractor device 23 periodically pushes the wire 21 through a welding device 26, in which a flag 14 is separated from a perforated sheet metal strip 27 and welded to the wire 21, to a bending roller 28, in which the wire 21 is at 90 ° with that on a feed device 30 seated counter roller 31, which can be moved in the direction of arrow 29, can be bent.
  • This bending device 28, 30, 31 is programmable in such a way that C- or double-C-shaped brackets 1,1a with different dimensions of the webs 2, 3 and the spacer web 4 and the bridge web 3a can be produced.
  • a separating device 32 arranged upstream of the roller 28 and movable in the direction of arrow 33, the wire 21 is cut after the bend to the bracket 1, 1.

Landscapes

  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Reinforcement Elements For Buildings (AREA)
  • Wire Processing (AREA)
  • Manufacturing Of Tubular Articles Or Embedded Moulded Articles (AREA)

Claims (18)

1. Armature (18), en particulier pour élément de construction en béton cellulaire autoclavé (19), avec au moins deux treillis (7, 8) en fer à béton soudé, disposés à un écart l'un de l'autre, chaque treillis (7, 8) étant constitué de barres longitudinales (5) diposées suivant la longueur et de barres transversales (6) disposées suivant la largeur, les barres transversales (6) et les barres longitudinales (5) étant soudées aux points de croisement, les treillis (7, 8) étant maintenus écartés par des étriers (1, 1a) de maintien d'écartement en fer à béton soudable replié, soudés aux barres des treillis (7, 8) et des trous pour le passage de broches (15) de levage étant formés aux étriers (1, 1a), caractérisée en ce que les étriers (1, la) de maintien d'écartement sont constitués en un fer à béton replié en forme de C et présentent un segment supérieur (2), un segment inférieur (3) et un segment d'écartement (4), les segments (2) et (3) étant soudés chacun à une barre longitudinale (5) et/ou à une barre transversale (6) du treillis d'armature (7, 8).
2. Armature (18) selon la revendication 1, caractérisée en ce que l'étrier (1a) de maintien d'écartement est constitué de deux étriers en forme de C et est réalisé en une seule pièce avec un segment d'écartement (3a).
3. Armature (18) selon l'une des revendications 1 ou 2, caractérisée en ce que l'épaisseur de la barre formant l'étrier (1, 1a) correspond à l'épaisseur des barres longitudinales (5) et/ou des barres transversales (6) d'un treillis (7, 8).
4. Armature (18) selon une ou plusieurs des revendications 1 à 3, caractérisée en ce que les étriers (1, 1a) sont disposés dans l'espace compris entre les treillis (7, 8), les segments horizontaux (2, 3) étant soudés chacun, avantageusement par soudure par points, avec une barre longitudinale (5) du treillis supérieur (7) et du treillis inférieur (8).
5. Armature (18) selon la revendication 4, caractérisée en ce que les segments (2, 3) sont parallèles aux barres transversales (6).
6. Armature (18) selon une ou plusieurs des revendications 1 à 5, caractérisée en ce que les deux segments (2 et 3) sont placés de l'intérieur sous les barres longitudinales (5).
7. Armature (18) selon une ou plusieurs des revendications 1 à 6, caractérisée en ce que la forme en C des étriers (1, la) de maintien d'écartement est ouverte vers l'extérieur.
8. Armature (18) selon une ou plusieurs des revendications 1 à 6, caractérisée en ce que la forme en 6 des étriers (1, la) de maintien d'écartement est ouverte vers l'intérieur.
9. Armature (18) selon une ou plusieurs des revendications 1 à 8, caractérisée en ce que les segments (2, 3) sont fixés en outre par soudure à une barre transversale (6).
10. Armature (18) selon une ou plusieurs des revendications 1 à 9, caractérisée en ce que des étriers (1. la) sont disposés avec leurs segments (2, 3) parallèles aux barres longitudinales (5), et sont soudés aux points de croisement avec les barres transversales (6), éventuellement aussi en plus avec les barres longitudinales (5).
11. Armature (18) selon une ou plusieurs des revendications 1 à 10, caractérisée en ce qu'au moins deux étriers (1) sont disposés en opposition transversalement à l'armature (18).
12. Armature (18) selon une ou plusieurs des revendications 1 à 11, caractérisée en ce que les trous pour les broches de levage (15) sont constitués par des trous (13) dans les petits drapeaux (14) fixés de façon en soi connue sur les segments d'écartement (4) des étriers (1, 1a).
13. Dispositif pour la fabrication d'une armature, en particulier une armature (18) selon une ou plusieurs des revendications 1 à 12, avec un rouleau de fil d'armature (21), des rouleaux redresseurs (22), un appareil tracteur (23), une installation de soudage (26), pour les petits drapeaux (14), une installation de coupe (32), une installation de pliage du fil (20), une installation de transport (34) et un dispositif de soudage (25) pour le soudage des treillis (7, 8) d'acier à béton avec des étriers (1, la) d'écartement, caractérisé en ce qu'une installation de pliage du fil (20) produisant les étriers (1, 1a) d'écartement ainsi qu'une installation de transport (34) conduisant les étriers (1, 1a) au dispositif de soudage (25) sont disposées avant le dispositif de soudage (25).
14. Dispositif selon la revendication 13, caractérisé en ce que l'installation de pliage de fil (20) est équipée d'un appareil tracteur (23), qui tire périodiquement un fil d'armature (21) à partir d'un rouleau, et le transporte dans l'installation de pliage (20).
15. Dispositif selon la revendication 13 et/ou 14, caractérisé en ce quedes rouleaux de dressage (22) sont disposés en amont de l'appareil tracteur (23).
16. Dispositif selon une ou plusieurs des revendications 13 à 15, caractérisé en ce qu'en aval de l'appareil tracteur (23) est disposée une installation de soudage (26), dans laquelle un petit drapeau (14) est coupé sur une bande perforée (27) et est soudé au fil (21).
17. Dispositif selon une ou plusieurs des revendications 13 à 16, caractérisé en ce qu'une installation de coupe (32) est diposée en aval de l'appareil tracteur (23), est suivie d'une installation de pliage qui est avantageusement constituée d'un rouleau de pliage (28), et d'un contre-rouleau (31) monté sur un dispositif de poussée (30), et coopérant avec ledit rouleau (28).
18. Dispositif selon une ou plusieurs des revendications 13 à 17, caractérisé en ce que l'installation de transport (34) présente un aimant (35), et coopere avec l'installation de pliage (28, 30, 31), de façon telle qu'elle transporte un étrier replié dans l'installation de soudage (25), l'étrier détaché (1, 1a) adhérant à l'aimant (35).
EP83106868A 1983-04-15 1983-07-13 Elément d'armature en treillis d'acier Expired EP0122316B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT83106868T ATE42365T1 (de) 1983-04-15 1983-07-13 Bewehrungskoerper aus stahlmatten.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19833313793 DE3313793A1 (de) 1983-04-15 1983-04-15 Bewehrungskoerper aus stahlmatten
DE3313793 1983-04-15

Publications (3)

Publication Number Publication Date
EP0122316A2 EP0122316A2 (fr) 1984-10-24
EP0122316A3 EP0122316A3 (en) 1985-12-27
EP0122316B1 true EP0122316B1 (fr) 1989-04-19

Family

ID=6196546

Family Applications (1)

Application Number Title Priority Date Filing Date
EP83106868A Expired EP0122316B1 (fr) 1983-04-15 1983-07-13 Elément d'armature en treillis d'acier

Country Status (4)

Country Link
US (1) US4667452A (fr)
EP (1) EP0122316B1 (fr)
AT (1) ATE42365T1 (fr)
DE (1) DE3313793A1 (fr)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SE453680B (sv) * 1985-09-27 1988-02-22 Siporex Int Ab Armeringskorg avsedd for gjutformar for gjutning av konststen-massor samt forfarande for framstellning av armeringskorgen
US5487251A (en) * 1994-05-06 1996-01-30 Independent Concrete Pipe Apparatus and method for reinforcing cast structures
AU2005244578B2 (en) * 2004-12-16 2012-03-15 The Austral Brick Company Pty Ltd Reinforced cementitious material product and method of manufacture of the same
DE102009048425A1 (de) * 2009-10-06 2011-04-07 Häussler Innovation GmbH Verfahren und Vorrichtung zur Herstellung geschweißter Verbindungen
NO333023B1 (no) * 2010-03-03 2013-02-18 Reforcetech Ltd Armeringssystem og fremgangsmate for bygging av betongkonstruksjoner.
CN102955446B (zh) * 2012-11-19 2015-01-28 苏州汇川技术有限公司 钢筋弯箍机及弯箍控制方法
SE542398C2 (en) * 2014-07-03 2020-04-21 Skanska Sverige Ab Arrangement, method and computer program for producing a reinforcement cage
MD4558C1 (ro) 2017-01-27 2018-10-31 TS-Rebar Holding LLC Armătură pentru armarea orizontală a zidăriei din piatră şi procedeu de fabricare a acesteia (variante)
DE202017101111U1 (de) * 2017-02-28 2017-03-11 C.B.S. Team-Projektgesellschaft mbH Porenbeton-Hybrid-Bauelement

Family Cites Families (15)

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Publication number Priority date Publication date Assignee Title
BE525224A (fr) *
FI29960A (fi) * 1958-10-10 Siporex Int Ab Sätt att utföra korgliknande armeringar i lättbetongplattor
DE1609814A1 (de) * 1965-04-08 1970-05-21 Badische Stahlwerke Bewehrungselement fuer Stahlbetonbauteile
NL6710134A (fr) * 1967-07-21 1969-01-23
US3440729A (en) * 1967-10-09 1969-04-29 Bill R Allison String holder
AT279863B (de) * 1968-02-09 1970-03-25 Oesterr Amerikan Magnesit Bauelement für Mantelbetonbauwerke
NL7203221A (fr) * 1971-03-16 1972-09-19
DE2125269A1 (de) * 1971-05-21 1972-11-30 Stahlwerke Röchling-Burbach GmbH, 6620 Völklingen Bewehrungselement für Stahlbeton
DE2126670A1 (de) * 1971-05-28 1972-12-07 Meissner, Friedrich, 8035 Gauting Abstandshalter für Wandbewehrungen in Betonwänden
AT343438B (de) * 1975-04-09 1978-05-26 Bucher Franz Verfahren zum herstellen eines gitter- bzw. bugeltragers
BE885563Q (fr) * 1976-01-05 1981-02-02 Cs & M Inc Treillis de fils metallique et appareil pour sa fabrication
AU510165B2 (en) * 1977-01-07 1980-06-12 Takenaka Komonen Co. Ltd - Reinforced concrete structure
SU717253A1 (ru) * 1977-08-30 1980-02-25 Проектно-Технологический Трест "Элеватороргстрой" Соединительный элемент пространственных арматурных каркасов железобетонных изделий
US4226061A (en) * 1978-06-16 1980-10-07 Day Jr Paul T Reinforced masonry construction
DE7819077U1 (de) * 1978-06-26 1979-01-18 Bellmer, Artur, 2130 Rotenburg Verbundmatte, insbesondere zur bewehrung von gasbetonplatten

Also Published As

Publication number Publication date
EP0122316A2 (fr) 1984-10-24
ATE42365T1 (de) 1989-05-15
EP0122316A3 (en) 1985-12-27
US4667452A (en) 1987-05-26
DE3313793A1 (de) 1984-10-18

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