EP2994253B1 - Spacer for concrete reinforcements - Google Patents

Spacer for concrete reinforcements Download PDF

Info

Publication number
EP2994253B1
EP2994253B1 EP14727417.9A EP14727417A EP2994253B1 EP 2994253 B1 EP2994253 B1 EP 2994253B1 EP 14727417 A EP14727417 A EP 14727417A EP 2994253 B1 EP2994253 B1 EP 2994253B1
Authority
EP
European Patent Office
Prior art keywords
bars
longitudinal bars
transverse
spacers
longitudinal
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.)
Active
Application number
EP14727417.9A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP2994253A1 (en
Inventor
Hugo Van den Broecke
Piet OCKET
Christof PENSAERT
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.)
Intersig NV
Original Assignee
Intersig NV
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 Intersig NV filed Critical Intersig NV
Priority to SI201431290T priority Critical patent/SI2994253T1/sl
Priority to PL14727417T priority patent/PL2994253T3/pl
Publication of EP2994253A1 publication Critical patent/EP2994253A1/en
Application granted granted Critical
Publication of EP2994253B1 publication Critical patent/EP2994253B1/en
Priority to HRP20191473 priority patent/HRP20191473T1/hr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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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
    • 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
    • B21F27/121—Making special types or portions of network by methods or means specially adapted therefor of tubular form, e.g. as reinforcements for pipes or pillars
    • 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
    • E04C5/16—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 spacer in a stable position on a flat structure, such as a bottom reinforcement net, by means of the bottom longitudinal bar.
  • a flat structure such as a bottom reinforcement net
  • the top longitudinal bar in turn forms a support surface on which a reinforcement net can be placed.
  • the spacer only comprises two parallel longitudinal bars, more particularly a bottom longitudinal bar and a top longitudinal bar.
  • the distance between two neighboring longitudinal bars is always between 20 mm and 200 mm, preferably between 50 mm and 200 mm.
  • the transverse bars do not project, or hardly project at all, over the outer longitudinal bars. There is therefore no overhang, or hardly any overhang at all, of the ends of the transverse bars over the top and bottom longitudinal bars. More particularly, the transverse bars project at most 1.0 mm over the outer longitudinal bars; preferably at most 0.5 mm; more preferably at most 0.2 mm; or at most 0.1 mm; or at most 0.05 mm.
  • the combination described herein typically comprises a meandering lattice structure which comprises two or more spacers, in which the spacers are positioned next to each other, so that the transverse bars are in line with one another.
  • the distance between two neighboring spacers is usually between 3 mm and 20 mm, for example approximately 15 mm.
  • most transverse bars are interrupted (i.e. they do not continue in the space between two neighboring spacers), in which case the transverse bars of each spacer do not project over the top and bottom longitudinal bars, or project by no more than 1 mm, as described above.
  • two or more transverse bars are not interrupted, as a result of which the spacers in the combination are connected to each other. All transverse bars are typically straight.
  • the present invention provides a method which comprises:
  • each pair of mutually adjacent longitudinal bars which forms a punching groove is preferably placed as close together as possible, in order to reduce the loss of material during separation of the spacers (see below).
  • the distance between a pair of mutually adjacent longitudinal bars which forms a punching groove is at most 20 mm and this distance is also referred to herein as the width of the punching groove.
  • each punching groove has a width of 0 mm to 20 mm, preferably between 0 mm and 15 mm, more preferably between 0 mm and 10 mm.
  • providing the at least four parallel longitudinal bars comprises unrolling and (straightening and) aligning these longitudinal bars in a plane.
  • each of the four or more longitudinal bars comes from a separate roll. This can increase the production rate and makes it possible, if desired, to combine different kinds of longitudinal bars, for example longitudinal bars of different diameters.
  • the four or more longitudinal bars thus comprise at least two longitudinal bars of different diameters.
  • spacers which comprise two or more longitudinal bars of a different diameter or thickness, as described above.
  • longitudinal bars may, for example, be unrolled from a roll and the transverse bars are positioned on and/or under the longitudinal bars as the longitudinal bars are being unrolled.
  • the transverse bars run parallel to one another and are perpendicular to the longitudinal bars, and laterally touch the longitudinal bars.
  • a lattice structure is formed.
  • all transverse bars are on the same side of the plane which is determined by the longitudinal bars. However, it is provided that, in specific embodiments, transverse bars may be present on both sides of this plane.
  • a large lattice structure can be subdivided into part-lattices, in which case each part-lattice may in turn be bent to form a combination of mutually connected spacers as described above.
  • the lattice comprises two or more punching grooves, and no transverse bar portions are cut through and/or punched out with two to five transverse bars in the lattice and, with all the other transverse bars, all the transverse bar portions are cut through and/or punched out in the punching grooves.
  • all part-lattices are connected to each other by means of the same transverse bars.
  • step (A) may comprise unrolling and (straightening and) aligning the longitudinal bars in a plane.
  • each of the four or more longitudinal bars comes from a separate roll. This can increase the production rate and makes it possible, if desired, to combine different kinds of longitudinal bars, for example longitudinal bars of different diameters.
  • the four or more longitudinal bars thus comprise at least two longitudinal bars of different diameters.
  • Fig. 5B and 5C show a lattice (5'), in which all the transverse bar portions have been punched out in the punching grooves, except for four transverse bars (4'): two in the centre of the lattice and two at the ends thereof.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Reinforcement Elements For Buildings (AREA)
EP14727417.9A 2013-05-08 2014-05-08 Spacer for concrete reinforcements Active EP2994253B1 (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
SI201431290T SI2994253T1 (sl) 2013-05-08 2014-05-08 Distančnik za betonske ojačitve
PL14727417T PL2994253T3 (pl) 2013-05-08 2014-05-08 Element dystansowy do zbrojenia betonu
HRP20191473 HRP20191473T1 (hr) 2013-05-08 2019-08-16 Držač razmaka za armiranje betona

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
BE201300319A BE1020887A3 (nl) 2013-05-08 2013-05-08 Afstandhouder voor betonwapeningen.
PCT/EP2014/059436 WO2014180950A1 (en) 2013-05-08 2014-05-08 Spacer for concrete reinforcements

Publications (2)

Publication Number Publication Date
EP2994253A1 EP2994253A1 (en) 2016-03-16
EP2994253B1 true EP2994253B1 (en) 2019-07-17

Family

ID=48917263

Family Applications (1)

Application Number Title Priority Date Filing Date
EP14727417.9A Active EP2994253B1 (en) 2013-05-08 2014-05-08 Spacer for concrete reinforcements

Country Status (12)

Country Link
EP (1) EP2994253B1 (pl)
BE (1) BE1020887A3 (pl)
DK (1) DK2994253T3 (pl)
ES (1) ES2748075T3 (pl)
HR (1) HRP20191473T1 (pl)
LT (1) LT2994253T (pl)
MA (1) MA38563B2 (pl)
PL (1) PL2994253T3 (pl)
PT (1) PT2994253T (pl)
SI (1) SI2994253T1 (pl)
TN (1) TN2015000485A1 (pl)
WO (1) WO2014180950A1 (pl)

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2214532A1 (de) * 1972-03-24 1973-10-04 Uth Geb Schneider Dorothea Abstandhalter fuer bewehrungsmittel
DE20310211U1 (de) * 2003-07-03 2004-11-04 Reuß GmbH & Co. KG Abstandsvorrichtung

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
None *

Also Published As

Publication number Publication date
PL2994253T3 (pl) 2020-03-31
EP2994253A1 (en) 2016-03-16
PT2994253T (pt) 2019-10-08
TN2015000485A1 (en) 2016-06-29
HRP20191473T1 (hr) 2019-11-15
ES2748075T3 (es) 2020-03-12
LT2994253T (lt) 2019-09-10
MA38563B2 (fr) 2021-10-29
WO2014180950A1 (en) 2014-11-13
BE1020887A3 (nl) 2014-07-01
SI2994253T1 (sl) 2019-09-30
DK2994253T3 (da) 2019-10-07
MA38563A1 (fr) 2016-09-30

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