EP0072776B1 - Entretoise pour fixer une armature supérieure - Google Patents

Entretoise pour fixer une armature supérieure Download PDF

Info

Publication number
EP0072776B1
EP0072776B1 EP82810333A EP82810333A EP0072776B1 EP 0072776 B1 EP0072776 B1 EP 0072776B1 EP 82810333 A EP82810333 A EP 82810333A EP 82810333 A EP82810333 A EP 82810333A EP 0072776 B1 EP0072776 B1 EP 0072776B1
Authority
EP
European Patent Office
Prior art keywords
spacer
bars
meander
longitudinal
transverse bars
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
EP82810333A
Other languages
German (de)
English (en)
Other versions
EP0072776A1 (fr
Inventor
Horst Brehmer
Vladimir Vido
Hans Iseli
Wilhelm Michel
Anton Spring
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.)
Von Roll AG
Bossard and Staerkle AG
Original Assignee
Von Roll AG
Bossard and Staerkle 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 Von Roll AG, Bossard and Staerkle AG filed Critical Von Roll AG
Priority to AT82810333T priority Critical patent/ATE14033T1/de
Publication of EP0072776A1 publication Critical patent/EP0072776A1/fr
Application granted granted Critical
Publication of EP0072776B1 publication Critical patent/EP0072776B1/fr
Expired legal-status Critical Current

Links

Images

Classifications

    • 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
    • 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

Definitions

  • the present invention relates to a spacer according to the preamble of independent claim 1.
  • Surface reinforcements for reinforced concrete consist of two sets of reinforcing bars, which usually cross each other at right angles. In tensile structures, such reinforcements are laid both near the bottom and near the top in order to create optimal conditions for both the pressure area and the tension area.
  • individual spacers are placed either on the lower formwork or on the lower reinforcement and connected to the lower and upper reinforcement using known means, such as wires.
  • a spacer must be arranged per square meter of reinforcement area so that the necessary load-bearing capacity of at least 100 kg / m 2 is achieved, which corresponds to the iron weight and the weight of a man and the upper reinforcement cannot bend.
  • reinforcement meshes are used more and more. These are factory-made reinforcements with orthogonal groups of bars welded to one another. If individual supports are used for spacing with such mats, about three supports per square meter of mat surface must be provided per mat with typical dimensions, namely 6 m long and 2.40 m wide, with 100 mm longitudinal bar spacing and 300 mm transverse bar spacing, i.e. approximately forty spacers per mat.
  • spacer baskets are again not manufactured in the factory, but on the building site and are particularly advantageous for reinforcements with individual bars because a reinforcement bar can be used directly as a support.
  • a reinforcing iron which can be used for the spacer has been described in CH-A 313 501. Accordingly, an iron wire is wound up helically and the snakes formed in this way are pressed into the desired shape having straight parts. When laying, the loops are pulled apart and each loop is connected to at least one rod.
  • This type of spacer basket also has to be manufactured on site and requires a lot of steel that is not required.
  • the storage of two different spacer baskets leads to a greater outlay.
  • the second type requires a lot of space in that the spacer baskets can only be nested at part of their height.
  • a spacer according to the preamble of claim 1 is also known from DE-A 2 214 532.
  • two longitudinal bars which are equally curved in a meandering shape and are spaced apart by transverse bars, form a spacer basket.
  • the cross bars protrude from the spacer basket by the same length over the longitudinal bar.
  • the object of the invention is to eliminate this disadvantage. This object is achieved with the characterizing features of claim 1.
  • the spacer can simply be used rotated by 90 °.
  • the elaborate loops can thus be avoided. It is also not necessary for such ab cuts to provide separate spacers, which significantly simplifies storage.
  • the meandering loops are advantageously formed uniformly and each consist of three straight lines, which are arranged at angles of at least approximately 102 ° to one another. Furthermore, it has also proven to be advantageous if the meander half-loops are of different sizes, the shorter meander half-loop should be larger than the grid of the reinforcement plate so that they cannot fall onto the mesh.
  • the proposed spacer can be used by simply turning it according to the use of the dependent claim 9 90 ° for both types of installation, namely standing on the formwork or standing on the lower reinforcement mat in the same tensile structure.
  • the spacer 10 consists of longitudinal rods 11, 12 bent in a meandering shape, which are held at a distance from one another by means of transverse rods 13.
  • the cross bars are rigidly connected to the longitudinal bars 11, 12 by welding or gluing and project beyond them on both sides by a certain length, as will be described further below.
  • the meandering loops are the same among themselves and consist of three straight sections that are arranged at an obtuse angle.
  • the meandering half-loops that arise when the meandering loops are halved in a perpendicular plane E in the longitudinal direction of the spacer have different widths.
  • the cross bars 13 determine the distance D between the two longitudinal bars 11, 12. If this distance D within the variable thickness of the lower mat 22 is approximately the same as the height F of the amplitude, the spacer can be rotated by 90 ° and always determines the same distance between lower and upper reinforcement.
  • the cross bars 13 protrude at one end 14 by the length of the feet 15 and twice the bar thickness of the reinforcement over the longitudinal bar 12 and on the other hand, the ends 16 of the cross bars 13 are extended so far that they serve as a stop, so that they are at hold the bars of the reinforcement mesh and the upper reinforcement mesh practically immovably with little play.
  • the angle between the straight lines of the meandering loops must be determined in such a way that the vertical side lengths F of the meandering loops are not turned up by a load.
  • the weight of the upper reinforcement mat i.e. 15 kg / m 2 and the weight of a man, i.e. 80 kg, must be taken as the load. It has been shown that this condition is met at an angle of 102 °.
  • the reinforcement mat 22 consisting of orthogonally welded bars is supported on the formwork 20 by means of spacers 21 so that the reinforcement is at a distance from the formwork.
  • the spacer 10 according to FIG. 1 also stands on the formwork 20 with the feet 15 made of rustproof material. This shows that the free length of the ends 14 of the cross bars 13 must be as long as the height of the spacer 21 and twice the thickness of the bars of the reinforcement mat 22.
  • the upper reinforcement mat 23 can only be moved slightly .
  • amplitude height F is approximately the same as the distance D between the longitudinal wires can be rotated by 90 ° in an arrangement according to FIG. 2 for heating pipes, pipes for electrical lines or water installation pipes, so that it rests on the lower reinforcement mat 22 according to FIG. 3. This means that complicated and expensive loops do not have to be made with the spacers for such installation work.
  • spacers can be nested and block as little space as possible during storage and transport.
  • two different types of spacers do not have to be kept in stock, but a series of types is sufficient for all normal structural heights of tensile structures.

Landscapes

  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Reinforcement Elements For Buildings (AREA)
  • Body Structure For Vehicles (AREA)
  • Tents Or Canopies (AREA)

Claims (8)

1. Entretoise pour fixer une armature supérieure (23) dans des structures porteuses planes en béton armé au-dessus de supports, tels que des murs et/ou des poutres, qui comporte deux barres longitudinales (11, 12), identiquement cintrées en forme de méandres et maintenues à distance l'une de l'autre par des barres transversales (13), les barres transversales (13) dépassant de longueurs égales (14) la barre longitudinale (12), au moins d'un côté de la cage d'écartement, caractérisée en ce que la distance (D) séparant l'une de l'autre les barres longitudinales (11, 12), mesurée extérieurement, est approximativement égale à l'amplitude (F), mesurée extérieurement, d'un méandre des barres longitudinales (11, 12) augmentée de l'épaisseur des barres transversales (13).
2. Entretoise suivant la revendication 1, dans laquelle les méandres sont formés de façon uniforme et consistent chacun en trois tronçons rectilignes qui forment des angles obtus.
3. Entretoise suivant la revendication 2, caractérisée en ce que les angles obtus valent au moins approximativement 102°.
4. Entretoise suivant la revendication 3, dans laquelle les méandres sont constitués de demi- méandres (A, B) de longueurs différentes.
5. Entretoise suivant la revendication 4, caractérisée en ce qu'elle comporte au moins une barre transversale (13) par demi-méandre court (B) et au moins deux barres transversales (13) par demi-méandre long (A), si la division en demi- méandres est effectuée par un plan médian vertical (E) parallèlement à la direction longitudinale de la cage d'écartement par les barres longitudinales (11, 12).
6. Entretoise suivant l'une des revendications précédentes 1 à 5, dans laquelle les barres transversales (13) sont, d'un côté de la cage d'écartement, prolongées au-delà de la barre longitudinale (12) correspondante et, de l'autre côté de la cage d'écartement, coupées à proximité de la barre longitudinale (11) correspondante.
7. Entretoise suivant la revendication 6, caractérisée en ce que les barres transversales (13) prolongées d'un côté au-delà de la barre longitudinale (12) sont pourvues, à leurs extrémités libres (14) de pieds (15) en matériau insensible à la rouille.
8. Entretoise suivant la revendication 7, dans laquelle les barres transversales (13) coupées à proximité de la barre longitudinale (11) se prolongent au-delà de celle-ci jusqu'à venir buter contre les barres d'un treillis d'armature.
EP82810333A 1981-08-14 1982-08-09 Entretoise pour fixer une armature supérieure Expired EP0072776B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT82810333T ATE14033T1 (de) 1981-08-14 1982-08-09 Abstandhalter zur fixierung einer oberen bewehrung.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH5281/81 1981-08-14
CH528181 1981-08-14

Publications (2)

Publication Number Publication Date
EP0072776A1 EP0072776A1 (fr) 1983-02-23
EP0072776B1 true EP0072776B1 (fr) 1985-06-26

Family

ID=4290962

Family Applications (1)

Application Number Title Priority Date Filing Date
EP82810333A Expired EP0072776B1 (fr) 1981-08-14 1982-08-09 Entretoise pour fixer une armature supérieure

Country Status (3)

Country Link
EP (1) EP0072776B1 (fr)
AT (1) ATE14033T1 (fr)
DE (1) DE3264424D1 (fr)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1986004105A1 (fr) * 1985-01-02 1986-07-17 Per Hofman Organe de positionnement
DE4018632A1 (de) * 1989-08-04 1991-02-14 Polytherm Vertriebsgesellschaf Bewehrungskorb fuer betonboeden oder betondecken
DE10213456A1 (de) * 2002-03-26 2003-10-16 Exte Extrudertechnik Gmbh Unterstützungsteil zur Lagesicherung eines Bewehrungselements
DE102014117103A1 (de) * 2014-11-21 2016-05-25 Transportbeton Sudbrack GmbH Abstandhaltersystem

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH486617A (de) * 1968-12-13 1970-02-28 Bachmann Ag F & L Distanzhalter für Beton-Armierungen, insbesondere Armierungsnetze
DE2214532A1 (de) * 1972-03-24 1973-10-04 Uth Geb Schneider Dorothea Abstandhalter fuer bewehrungsmittel
DE2634120A1 (de) * 1976-07-29 1978-02-02 Geb Schneider Dorothea Uth Sichtbeton-abstandhalter als stuetzbewehrung
DE2805971C3 (de) * 1978-02-13 1981-05-21 geb. Schneider Dorothea 8229 Berchtoldimg Uth Abstandhalter für den Stahlbetonbau

Also Published As

Publication number Publication date
ATE14033T1 (de) 1985-07-15
EP0072776A1 (fr) 1983-02-23
DE3264424D1 (en) 1985-08-01

Similar Documents

Publication Publication Date Title
EP0066647B1 (fr) Panneau mural
EP0072776B1 (fr) Entretoise pour fixer une armature supérieure
AT414000B (de) Auflageleiste, heiz- bzw. kühlregister sowie flächiger bauteil aus aushärtbarem werkstoff
DE3405682A1 (de) Verlorene schalung
CH642131A5 (en) Connection cage for reinforcing reinforced-concrete structures and the use thereof
EP1033454B1 (fr) Elément de construction pour armature de cisaillement
DE3210680C2 (fr)
DE1484318C3 (de) Bewehrung für flächige Betonbauteile
DE814936C (de) Bewehrung fuer die Rippen von Stahlbeton-Rippendecken
EP0709531A1 (fr) Elément de coffrage
EP0143101A2 (fr) Armature pour constructions de béton armé
DE1055213B (de) Rippendecke, insbesondere Geschossdecke, mit Heiz- oder Kuehlrohrleitungen und Verfahren zur Herstellung dieser Decke
AT258541B (de) Stahlbetonplatte, insbesondere Fertigteilplatte (verlorene Schalung) für Decken
AT378982B (de) Bewehrung fùr stahlbetonkonstruktionen, insbesondere baustahlmatte oder stabschar
EP0267146A1 (fr) Cage d'armature
DE7835242U1 (de) Fussbodeneinheit
AT404957B (de) Bewehrungselement
EP0176815A2 (fr) Ecarteur pour des constructions en béton armé
AT371524B (de) Bewehrungselement und verfahren zu dessen verlegung
DE1484100C3 (de) Geschweißte Bewehrungsmatte für Beton
CH667686A5 (de) Raumbewehrung.
DE1409976C (de) Verfahren zum Herstellen einer Stahlbetonrippendecke aus Ortbeton und Rippenschalung fur dieses Verfahren
DE3103013A1 (de) Lagergestell fuer stabfoermige brennelemente
AT346048B (de) Mantelbeton - fertigteil - element
CH640592A5 (en) Reinforcing element of a reinforcing arrangement having a plurality of reinforcing elements in a solid slab floor with rib reinforcement

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

AK Designated contracting states

Designated state(s): AT BE CH DE FR GB IT LI LU NL SE

17P Request for examination filed

Effective date: 19830722

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Designated state(s): AT BE CH DE FR GB IT LI LU NL SE

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: SE

Free format text: THE PATENT HAS BEEN ANNULLED BY A DECISION OF A NATIONAL AUTHORITY

Effective date: 19850626

Ref country code: NL

Effective date: 19850626

Ref country code: IT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT;WARNING: LAPSES OF ITALIAN PATENTS WITH EFFECTIVE DATE BEFORE 2007 MAY HAVE OCCURRED AT ANY TIME BEFORE 2007. THE CORRECT EFFECTIVE DATE MAY BE DIFFERENT FROM THE ONE RECORDED.

Effective date: 19850626

Ref country code: FR

Free format text: THE PATENT HAS BEEN ANNULLED BY A DECISION OF A NATIONAL AUTHORITY

Effective date: 19850626

Ref country code: BE

Effective date: 19850626

REF Corresponds to:

Ref document number: 14033

Country of ref document: AT

Date of ref document: 19850715

Kind code of ref document: T

REF Corresponds to:

Ref document number: 3264424

Country of ref document: DE

Date of ref document: 19850801

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: LU

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 19850831

NLV1 Nl: lapsed or annulled due to failure to fulfill the requirements of art. 29p and 29m of the patents act
EN Fr: translation not filed
PLBE No opposition filed within time limit

Free format text: ORIGINAL CODE: 0009261

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT

26N No opposition filed
GBPC Gb: european patent ceased through non-payment of renewal fee
REG Reference to a national code

Ref country code: CH

Ref legal event code: PUE

Owner name: VON ROLL AG

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: GB

Effective date: 19881121

REG Reference to a national code

Ref country code: CH

Ref legal event code: PUE

Owner name: VON ROLL HOLDING AG TRANSFER- STAHL- UND WALZWERKE

Ref country code: CH

Ref legal event code: PFA

Free format text: VON ROLL AG TRANSFER- VON ROLL HOLDING AG

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: CH

Payment date: 19970715

Year of fee payment: 16

Ref country code: AT

Payment date: 19970715

Year of fee payment: 16

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: DE

Payment date: 19970723

Year of fee payment: 16

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: AT

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 19980809

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: LI

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 19980831

Ref country code: CH

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 19980831

REG Reference to a national code

Ref country code: CH

Ref legal event code: PL

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: DE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 19990601