EP0356922A1 - Ecarteur d'armature incorporé dans le béton - Google Patents

Ecarteur d'armature incorporé dans le béton Download PDF

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Publication number
EP0356922A1
EP0356922A1 EP89115679A EP89115679A EP0356922A1 EP 0356922 A1 EP0356922 A1 EP 0356922A1 EP 89115679 A EP89115679 A EP 89115679A EP 89115679 A EP89115679 A EP 89115679A EP 0356922 A1 EP0356922 A1 EP 0356922A1
Authority
EP
European Patent Office
Prior art keywords
base body
wire
spacer
fastening elements
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.)
Granted
Application number
EP89115679A
Other languages
German (de)
English (en)
Other versions
EP0356922B1 (fr
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
Priority to EP94102506A priority Critical patent/EP0606107A1/fr
Publication of EP0356922A1 publication Critical patent/EP0356922A1/fr
Application granted granted Critical
Publication of EP0356922B1 publication Critical patent/EP0356922B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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 concrete spacer for wire reinforcement in the walls of cast concrete pipes.
  • spacers of this type are designed as slotted disks made of plastic, which are attached to the wire reinforcement at a specific point by means of their slit.
  • the spacers bend, so that the wire reinforcements are no longer held in the shape of the center, which can affect the quality of the finished concrete pipe.
  • the object is achieved in that radially projecting fastening elements are provided on one side of a base body for connecting the base body to the wire reinforcement are, and the radially opposite, other side of the base body has a spacing element projecting radially opposite to the fastening elements, which merges into an approximately axially extending inclined surface for sliding the mold.
  • the form shown in Figure 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 protrudes upwards from a circular base plate 2 according to the length of the concrete pipe to be cast .
  • 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 essentially correspond to the length of the concrete pipe to be manufactured and are supported on the base plate 2.
  • the sections 6 usually run in a spiral along the vertical rods 5.
  • the inner and outer wire reinforcements 3, 4 thus each form self-supporting cages, which can optionally 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 those with the outer wire reinforcement connected spacers 8 come into contact with an outer form 9, which is pushed onto the inner core 1 provided with the wire reinforcements 3, 4 in the direction of arrow B, after the wire reinforcements 3, 4 equipped with the spacers 7, 8 around the inner core 7 were ordered.
  • 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 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 mold 9 is preferably 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, the coefficient of thermal expansion of which is substantially equal to 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.
  • On one side (in Figures 3 and 4 on the right) of the base body 11 there are radially projecting fastening elements 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 which are firmly inserted and bent into them, each of which comprises a peripherally extending 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 enclose the metal rod 5 in a non-positive or positive manner and also permit clipping onto this rod 5.
  • the radially opposite side of the base body 11 to 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 onto 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 bears 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 16, 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 embrace the associated, peripheral 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, rests against peripherally running sections 6 of the wire reinforcement 3, while the spacer 8 with its groove 18 lies against a vertically extending rod 5.
  • the spacers 7, 8 are so stable and so firmly connected to the wire reinforcements 3, 4 that they do not move or deform when the reinforcements move relative to the parts 1 and 9 of the shape, so that in any case an exact centering of the Reinforcements 3, 4 are guaranteed in the annular space to be filled with concrete.
  • 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, that is to say also consist, for example, of polymer concrete and the spacers 7, 8 are formed when casting or spraying.
  • the base bodies 11, 16 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 spacing 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 the inner core 1 since the apex of the rib 14 acts as a circular disk-shaped roller.
  • a similar circular disc-shaped design could also receive 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, however, also be used in the same way for those 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 inside 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)
  • Diaphragms For Electromechanical Transducers (AREA)
  • Magnetic Resonance Imaging Apparatus (AREA)
  • Superconductors And Manufacturing Methods Therefor (AREA)
  • Compositions Of Macromolecular Compounds (AREA)
  • On-Site Construction Work That Accompanies The Preparation And Application Of Concrete (AREA)
EP89115679A 1988-08-27 1989-08-25 Ecarteur d'armature incorporé dans le béton Expired - Lifetime EP0356922B1 (fr)

Priority Applications (1)

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

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

Related Child Applications (1)

Application Number Title Priority Date Filing Date
EP94102506.6 Division-Into 1994-02-19

Publications (2)

Publication Number Publication Date
EP0356922A1 true EP0356922A1 (fr) 1990-03-07
EP0356922B1 EP0356922B1 (fr) 1994-10-26

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 After (2)

Application Number Title Priority Date Filing Date
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

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)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0519385A1 (fr) * 1991-06-19 1992-12-23 Siegfried Dreizler Procédé de fabrication d'un distancier d'armatures et un distancier
US11286633B2 (en) * 2018-08-09 2022-03-29 Asc Grupo Ersi, S.L.U. System with markers for placing a retaining pile with asymmetrical reinforcement and method for using same

Families Citing this family (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AU641116B3 (en) * 1993-01-27 1993-09-09 Kenneth Sissons Spacer for pier reinforcement cages
USD373070S (en) 1995-08-18 1996-08-27 Kriegstein Stewart B Rotatable concrete spacer
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.
WO2005116357A2 (fr) * 2004-05-17 2005-12-08 Bradley University Appareil et procede de renforcement de beton
DE102005006334A1 (de) * 2005-02-10 2006-08-24 Andreas Heymann Abstandhalter für Bewehrungen
USD548054S1 (en) 2005-07-26 2007-08-07 Eagle Eye Products, Inc. Rebar footing bolster
USD548053S1 (en) 2005-07-26 2007-08-07 Eagle Eye Products, Incl Rebar chair support
USD548055S1 (en) 2005-07-26 2007-08-07 Eagle Eye Products, Inc. Rebar chair support and base
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
US20140308474A1 (en) * 2013-04-16 2014-10-16 Hawkeye Concrete Products Co. Concrete product cage spacer
AU2018241240B2 (en) * 2017-03-29 2019-10-17 JALT Technologies Pty Ltd Apparatus for arranging steel reinforcement prior to a concrete pour
WO2019064404A1 (fr) * 2017-09-28 2019-04-04 株式会社 豊田設計 Cale d'espacement de barre d'armature
CN113217059B (zh) * 2021-06-03 2025-09-19 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
ES2993993B2 (es) * 2023-07-07 2025-09-29 Xpanel Building Tech Europe S L Separador de armaduras de acero para la construccion

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3257767A (en) * 1963-08-28 1966-06-28 Raymond R Lassy Snap-on spacer positioner for reinforcement
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
DE8704698U1 (de) * 1987-03-30 1987-05-14 Dreizler, Siegfried, 7333 Ebersbach Abstandhalter für schwere Bewehrungen
US4741143A (en) * 1986-10-06 1988-05-03 Foster Jr Thomas W Pier sled with integral tie wires

Family Cites Families (11)

* 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
AT262863B (de) * 1965-10-13 1968-06-25 Katzenberger Tech Buero Fuer N Zylindrischer Betonkörper
US4627211A (en) * 1985-09-23 1986-12-09 Foster Jr Thomas W Sled for a reinforcing cage used in a pier
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

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3257767A (en) * 1963-08-28 1966-06-28 Raymond R Lassy Snap-on spacer positioner for reinforcement
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
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

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0519385A1 (fr) * 1991-06-19 1992-12-23 Siegfried Dreizler Procédé de fabrication d'un distancier d'armatures et un distancier
US11286633B2 (en) * 2018-08-09 2022-03-29 Asc Grupo Ersi, S.L.U. System with markers for placing a retaining pile with asymmetrical reinforcement and method for using same

Also Published As

Publication number Publication date
WO1990002234A1 (fr) 1990-03-08
EP0431055A1 (fr) 1991-06-12
US5269113A (en) 1993-12-14
EP0356922B1 (fr) 1994-10-26
DE3829084C2 (fr) 1992-09-17
CA1329707C (fr) 1994-05-24
DE3829084A1 (de) 1990-03-15
AU4221889A (en) 1990-03-23
ES2064401T3 (es) 1995-02-01
ATE113331T1 (de) 1994-11-15
ZA896501B (en) 1990-05-30
TR25155A (tr) 1992-10-26
EP0606107A1 (fr) 1994-07-13

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