EP0431055A1 - Piece d'ecartement encastrable dans le beton - Google Patents

Piece d'ecartement encastrable dans le beton

Info

Publication number
EP0431055A1
EP0431055A1 EP89910099A EP89910099A EP0431055A1 EP 0431055 A1 EP0431055 A1 EP 0431055A1 EP 89910099 A EP89910099 A EP 89910099A EP 89910099 A EP89910099 A EP 89910099A EP 0431055 A1 EP0431055 A1 EP 0431055A1
Authority
EP
European Patent Office
Prior art keywords
base body
fastening elements
wire
spacer
wire reinforcement
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.)
Pending
Application number
EP89910099A
Other languages
German (de)
English (en)
Inventor
Siegfried Dreizler
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Publication of EP0431055A1 publication Critical patent/EP0431055A1/fr
Pending legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B28—WORKING CEMENT, CLAY, OR STONE
    • B28B—SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
    • B28B21/00—Methods or machines specially adapted for the production of tubular articles
    • B28B21/56—Methods or machines specially adapted for the production of tubular articles incorporating reinforcements or inserts
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B28—WORKING CEMENT, CLAY, OR STONE
    • B28B—SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
    • B28B23/00—Arrangements specially adapted for the production of shaped articles with elements wholly or partly embedded in the moulding material; Production of reinforced objects
    • B28B23/02—Arrangements specially adapted for the production of shaped articles with elements wholly or partly embedded in the moulding material; Production of reinforced objects wherein the elements are reinforcing members
    • B28B23/022—Means for inserting reinforcing members into the mould or for supporting them in the mould
    • 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
    • E04C5/168—Spacers connecting parts for reinforcements and spacing the reinforcements from the form
    • 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
    • E04C5/201—Spacer blocks with embedded separate holding wire or clips

Definitions

  • the invention relates to a spacer that can be embedded in concrete for the wire reinforcement in the walls of concrete pipes cast in molds.
  • spacers of this type are designed as slotted discs made of plastic, which are slotted onto the wire reinforcement at certain points by means of their slit.
  • the object is inventively achieved in that duck on one side of a base body radially projecting Befest Trentselem 'for connecting the body with the wire reinforcement provided and the radially opposite, other side of the base body has a spacing element which projects radially opposite the fastening elements and which merges into an approximately axially extending inclined surface for the shape to slide on.
  • FIG. 1 schematically shows a mold for casting concrete pipes with two wire reinforcements arranged in the concrete wall
  • Figure 2 is a sectional view " along the line 2-2 of Figure 1;
  • Figure 3 is a partial sectional view in the area of circle A in Figure 1;
  • Figure 4 is a perspective view of a first spacer
  • Figure 5 is a perspective view of a second spacer.
  • the mold shown in FIG. 1 for casting concrete pipes of relatively large dimensions, for example with a length of 3 m and a diameter of 1.20 m, comprises an inner core 1 which extends from a circular base plate 2 upwards in accordance with the length of the pipe to be cast Concrete pipe protrudes.
  • the inner core 1 is surrounded by an inner wire reinforcement 3 and at a distance from it by an outer wire reinforcement 4.
  • the wire reinforcements 3, 4 comprise vertically extending metal rods 5, which also speak substantially the length of the concrete pipe to be manufactured ent and rank on the base plate 2 'are supported.
  • the metal rods 5 are essentially circular, peripheral sections 6, also made of metal, for. B. connected by welding. The sections 6 usually run along the vertical bars 5 in a spiral shape.
  • the inner and outer wire reinforcements 3, 4 thus each form self-supporting cages, which may also be connected to one another.
  • Spacers 7, 8 to be described later on the wire reinforcements 3, 4 hold them at a precisely defined distance concentrically to the central axis of the inner core 1, the spacers 7 connected to the inner wire reinforcement abutting the outer circumferential surface of the inner core 1 and the spacers 8 connected to the outer wire reinforcement come into contact with an outer shape 9 which is pushed onto the inner core 1 provided with the wire reinforcements 3, 4 in the direction of the arrow B after the ones previously fitted with the spacers 7, 8 th wire reinforcements 3, 4 were arranged around the inner core 7.
  • the spacers 7 slide along its outer circumferential surface and ensure the exact centering of the inner wire reinforcement.
  • the inner wall of the outer mold 9 slides along the spacers 8 when it is applied to the inner core 1 and in this way centers the outer wire reinforcement 4.
  • the space between the inner core 1 and the form 9 is in the area of the wire reinforcements 3, 4 concrete poured.
  • the inner core 1 with the base plate 2 supporting the outer shape 9 preferably stands on a vibrating table, so that the filled concrete can be compacted in the desired manner.
  • FIGS 3 to 5 show the structure and operation of the spacers 7, 8 in detail.
  • the spacer 7 arranged on the inner wire reinforcement 3 comprises a base body 11 made of a material whose thermal expansion coefficient is essentially the same as that of the concrete used to manufacture the pipe. Polymer concrete, ie a mixture of plastic with sand, cement or the like, can be considered as the preferred material.
  • radially projecting fastening elements are provided for connecting the base body to the inner wire reinforcement 3.
  • These fastening elements comprise two lower wire parts 12, which protrude from the base body 11 and are firmly inserted and bent into them, each of which encompasses a peripheral section 6 of the wire reinforcement 3 from below in a non-positive or positive manner and can be easily clipped onto this section 6 ,
  • Two further wire parts 13 are provided next to one another above the wire parts 12, which non-positively or positively enclose the metal rod 5 and also permit clipping onto this rod 5.
  • the side of the base body 11 radially opposite the wire parts 12, 13 has a spacer element 14 projecting radially opposite to these wire parts in the form of a rib projecting from the base body, which merges into an approximately axially extending inclined surface 15 for sliding on the inner core 1.
  • a plurality of spacers 7 are arranged on the inner wire reinforcement at vertical and peripheral intervals before it is pushed onto the inner core 1.
  • the inclined surfaces 5 slide along the outer jacket of the inner core 1, so that the most inwardly projecting apex of the rib 14 lies against the inner core 1 and ensures the desired centering of the wire reinforcement 3. Since the wire parts 12 each encompass the reinforcement sections 6 from below, the spacers 7 cannot become detached when the reinforcement 3 is pushed onto the inner core 1.
  • the spacer 8 arranged on the outer wire reinforcement 4 likewise comprises a base body 1, for example made of polymer concrete.
  • Two wire parts 17 protrude from one side of this body 16, which essentially correspond to the wire parts 11 on the spacer 7, but do not encompass the associated, peripherally running section 6 of the wire reinforcement from below but from above .
  • a groove 18 is formed which receives a part of the vertically extending metal rod 5 and thus ensures that the spacer 8 * is in vertical contact with this rod.
  • a rib 19 with an inclined surface 21 protrudes from the base body 16 on the side opposite the wire parts 17.
  • peripheral sections 6 of the wire reinforcements 3, 4 are each arranged on the side of the vertically extending metal rods 5 facing the inner core 1. In this way, the wall from which the wire parts 12, 13 of the spacer 7 protrude bears against peripherally running sections 6 of the wire reinforcement 3, while the spacer 8 with its groove 18 bears against a vertically running rod 5.
  • the spacers 7, 8 are so stable and so firmly connected to the wire reinforcements 3, 4 that they do not shift or deform when the reinforcements move relative to the parts 1 and 9 of the mold, so that in any case an accurate Centering of the reinforcements 3, 4 in the annular space of the form to be filled with concrete is ensured.
  • the apex heights of the projecting ribs 14, 19 determine the respective distance of the wire reinforcements 3, 4 from the inner core 1 or the outer shape 9.
  • the fastening elements serving to connect the wire reinforcements 3, 4 can also be connected in one piece to the base body 11, 16, ie likewise also consist, for example, of polymer concrete and when the spacers 7, 8 are cast or sprayed with ⁇ forms.
  • corresponding projections made of polymer concrete can be formed on the base bodies 11, 16 at the level of the wire parts 12, 13, 17, which protrusions form the parts of the Enclose wire reinforcements 3, 4 in the same way as wire parts 12, 13 and 17.
  • the apex of the curved rib 14 functioning as a spacer element has the shape of a circular section, the center of the circle being approximately on the central axis of the peripheral section 6 of the wire reinforcement 3, which is encompassed by the wire part 12. If, therefore, the spacer 7 tilts around the peripherally extending reinforcement section 6 when the inner wire reinforcement 3 is applied to the inner core 1, for example by detaching the wire parts 13 from the metal rod 5, such a tilting would occur at the prescribed distance of the wire reinforcement 3 from the outer wall of the Do not change anything in the inner core 1 since the rib of the rib 14 acts like a circular disk-shaped roller.
  • FIGS. 1 and 2 A similar circular disk-shaped configuration could also be given to the rib 19 in the region of its contact surface on the inner wall of the outer mold 9.
  • the concrete pipe described in connection with FIGS. 1 and 2 is a pipe with a self-contained wall.
  • the spacers described can be used in the same way, however, also in the case of concrete pipes known per se which have an axially parallel slot in their wall.
  • Such "slotted pipes” are used, for example, on the edge of motorways as water drainage pipes, water flowing off the street entering the pipe interior via the slit.
  • the fastening elements (wire parts 12) are arranged in the lower region of the spacer 7 and the fastening elements (wire parts 17) in the upper region of the spacer 8.

Landscapes

  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Ceramic Engineering (AREA)
  • Structural Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Chemical & Material Sciences (AREA)
  • Civil Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Manufacturing Of Tubular Articles Or Embedded Moulded Articles (AREA)
  • Reinforcement Elements For Buildings (AREA)
  • On-Site Construction Work That Accompanies The Preparation And Application Of Concrete (AREA)
  • Magnetic Resonance Imaging Apparatus (AREA)
  • Superconductors And Manufacturing Methods Therefor (AREA)
  • Diaphragms For Electromechanical Transducers (AREA)
  • Compositions Of Macromolecular Compounds (AREA)

Abstract

Pièce d'écartement destinée à l'armature métallique dans les parois de tubes en béton coulés dans des moules. Des éléments de fixation (12, 13, 17) en saillie radiale sont prévus sur un côté d'un élément de base (11, 16) pour relier ce dernier à l'armature métallique (3, 4). L'autre côté radialement opposé de l'élément de base comporte un élément d'espacement (14, 19) qui se trouve en saillie radiale dans la direction opposée aux éléments de fixation et qui se transforme en une surface inclinée (15, 21) approximativement axialement pour permettre le passage du moule (1, 9).
EP89910099A 1988-08-27 1989-08-25 Piece d'ecartement encastrable dans le beton Pending EP0431055A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3829084 1988-08-27
DE3829084A DE3829084A1 (de) 1988-08-27 1988-08-27 Einbetonierbarer abstandhalter

Publications (1)

Publication Number Publication Date
EP0431055A1 true EP0431055A1 (fr) 1991-06-12

Family

ID=6361697

Family Applications (3)

Application Number Title Priority Date Filing Date
EP89115679A Expired - Lifetime EP0356922B1 (fr) 1988-08-27 1989-08-25 Ecarteur d'armature incorporé dans le béton
EP94102506A Withdrawn EP0606107A1 (fr) 1988-08-27 1989-08-25 Ecarteur d'armature incorporé dans le béton
EP89910099A Pending EP0431055A1 (fr) 1988-08-27 1989-08-25 Piece d'ecartement encastrable dans le beton

Family Applications Before (2)

Application Number Title Priority Date Filing Date
EP89115679A Expired - Lifetime EP0356922B1 (fr) 1988-08-27 1989-08-25 Ecarteur d'armature incorporé dans le béton
EP94102506A Withdrawn EP0606107A1 (fr) 1988-08-27 1989-08-25 Ecarteur d'armature incorporé dans le béton

Country Status (10)

Country Link
US (1) US5269113A (fr)
EP (3) EP0356922B1 (fr)
AT (1) ATE113331T1 (fr)
AU (1) AU4221889A (fr)
CA (1) CA1329707C (fr)
DE (1) DE3829084A1 (fr)
ES (1) ES2064401T3 (fr)
TR (1) TR25155A (fr)
WO (1) WO1990002234A1 (fr)
ZA (1) ZA896501B (fr)

Families Citing this family (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4120215C2 (de) * 1991-06-19 1996-04-11 Siegfried Dreizler Verfahren zum Herstellen eines Abstandhalters für Bewehrungen und Abstandhalter
AU641116B3 (en) * 1993-01-27 1993-09-09 Kenneth Sissons Spacer for pier reinforcement cages
US5878546A (en) * 1997-07-10 1999-03-09 Westover; Albert R. Concrete reinforcing bar connector
NL1017623C2 (nl) * 2001-03-16 2002-09-17 Albertus Josephus Gijsbert Bal Inrichting voor het positioneren van wapeningskorven bij toepassing in funderingspalen als ook andere gewapende elementen vervaardigd uit beton.
US20080184667A1 (en) * 2004-05-17 2008-08-07 Hindi Riyadh A Concrete Reinforcement Apparatus and Method
DE102005006334A1 (de) * 2005-02-10 2006-08-24 Andreas Heymann Abstandhalter für Bewehrungen
US20070186492A1 (en) * 2006-02-15 2007-08-16 Dayton Superior Corporation Lifting fixture for concrete structures
DE202009012725U1 (de) 2009-09-22 2010-02-25 Bag Bauartikel Gmbh Abstandhalter für Betonbewehrungen
DE202010003302U1 (de) 2010-03-05 2010-08-05 Bag Bauartikel Gmbh Abstandhalter für Betonbewehrungen
WO2014172367A1 (fr) * 2013-04-16 2014-10-23 Hawkeye Concrete Products Co. Distancier de cage de produit en béton
US10914072B2 (en) * 2017-03-29 2021-02-09 JALT Technologies Pty Ltd Apparatus for arranging steel reinforcement prior to a concrete pour
JP6844794B2 (ja) * 2017-09-28 2021-03-17 株式会社 豊田設計 鉄筋用スペーサ
PT3835488T (pt) * 2018-08-09 2023-04-14 Asc Grupo Ersi S L U Sistema com marcadores para colocação de estaca de contenção com armadura assimétrica e procedimento para utilização do mesmo
CN113217059A (zh) * 2021-06-03 2021-08-06 祝文畏 一种带预应力杆芯的组合锚杆
US11713577B2 (en) 2021-06-17 2023-08-01 Dayton Superior Corporation Reinforcement positioner with clip

Family Cites Families (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US750456A (en) * 1904-01-26 Composite building material
US790230A (en) * 1904-06-09 1905-05-16 Omar A Stempel Method of protecting piles or the like.
US1759626A (en) * 1926-12-28 1930-05-20 Theodore H Ockels Centering reenforcing construction for columns
US1919491A (en) * 1929-12-03 1933-07-25 Marbelite Corp Reenforced column
DE893856C (de) * 1951-04-14 1953-10-19 Emil Dipl-Ing Luz Mit Klemmbuegeln versehener Abstandhalter fuer Bewehrungseinlagen in Stahlbeton
US3257767A (en) * 1963-08-28 1966-06-28 Raymond R Lassy Snap-on spacer positioner for reinforcement
AT262863B (de) * 1965-10-13 1968-06-25 Katzenberger Tech Buero Fuer N Zylindrischer Betonkörper
US3471986A (en) * 1966-10-28 1969-10-14 Richard A Swenson Spacer for reinforcing mesh for concrete pipe and the like
FR2289696A1 (fr) * 1974-10-31 1976-05-28 Laroche Jean Pierre Distancier d'armatures
US4627211A (en) * 1985-09-23 1986-12-09 Foster Jr Thomas W Sled for a reinforcing cage used in a pier
US4741143A (en) * 1986-10-06 1988-05-03 Foster Jr Thomas W Pier sled with integral tie wires
DE8704698U1 (de) * 1987-03-30 1987-05-14 Dreizler, Siegfried, 7333 Ebersbach Abstandhalter für schwere Bewehrungen
DE8806355U1 (de) * 1988-05-13 1988-06-30 Niederberg-Chemie GmbH, 4133 Neukirchen-Vluyn Abstandshalter
US4939883A (en) * 1988-07-05 1990-07-10 Swenson Richard A Spacer for reinforcing mesh and spiral reinforcement cages
US4989388A (en) * 1989-02-24 1991-02-05 Hawkeye Concrete Products Co. Spacer for spacing reinforcing mesh wire from the form in the manufacture of concrete pipe and the like
US4999965A (en) * 1990-04-18 1991-03-19 Hawkeye Concrete Products Co. Spacer for double cage reinforcement wire mesh for concrete products

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO9002234A1 *

Also Published As

Publication number Publication date
WO1990002234A1 (fr) 1990-03-08
ZA896501B (en) 1990-05-30
ATE113331T1 (de) 1994-11-15
ES2064401T3 (es) 1995-02-01
EP0356922B1 (fr) 1994-10-26
US5269113A (en) 1993-12-14
EP0356922A1 (fr) 1990-03-07
TR25155A (tr) 1992-10-26
EP0606107A1 (fr) 1994-07-13
DE3829084A1 (de) 1990-03-15
CA1329707C (fr) 1994-05-24
DE3829084C2 (fr) 1992-09-17
AU4221889A (en) 1990-03-23

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Legal Events

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Free format text: VERFAHREN ABGESCHLOSSEN INFOLGE VERBINDUNG MIT 89115679.6/0431055 (EUROPAEISCHE ANMELDENUMMER/VEROEFFENTLICHUNGSNUMMER) VOM 11.09.91.

XX Miscellaneous (additional remarks)

Free format text: VERFAHREN ABGESCHLOSSEN INFOLGE VERBINDUNG MIT 89115679.6/0356922 (EUROPAEISCHE ANMELDENUMMER/VEROEFFENTLICHUNGSNUMMER) VOM 11.09.91.