EP0338423A2 - Coffrage pour éléments de construction en béton armé fabriqués en série, et en particulier pour traverses d'aiguillages en béton précontraint - Google Patents

Coffrage pour éléments de construction en béton armé fabriqués en série, et en particulier pour traverses d'aiguillages en béton précontraint Download PDF

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Publication number
EP0338423A2
EP0338423A2 EP89106593A EP89106593A EP0338423A2 EP 0338423 A2 EP0338423 A2 EP 0338423A2 EP 89106593 A EP89106593 A EP 89106593A EP 89106593 A EP89106593 A EP 89106593A EP 0338423 A2 EP0338423 A2 EP 0338423A2
Authority
EP
European Patent Office
Prior art keywords
tendons
plates
formwork
concreting
parts
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.)
Withdrawn
Application number
EP89106593A
Other languages
German (de)
English (en)
Other versions
EP0338423A3 (fr
Inventor
Rolf Dipl.-Ing. Knodel
Frithjof Dipl.-Ing. Schimpff
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.)
Wayss and Freytag AG
Original Assignee
Wayss and Freytag 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 Wayss and Freytag AG filed Critical Wayss and Freytag AG
Publication of EP0338423A2 publication Critical patent/EP0338423A2/fr
Publication of EP0338423A3 publication Critical patent/EP0338423A3/fr
Withdrawn legal-status Critical Current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
    • 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
    • B28B23/024—Supporting means
    • B28B23/026—Mould partitionning elements acting as supporting means in moulds, e.g. for elongated articles

Definitions

  • the invention relates to a formwork for prefabricated parts, as generically described in the preamble of claim 1.
  • Formwork of the type mentioned above are known from DE 3448053 A1.
  • the parking device is constructed from two bulkhead plates (called head plates 17 there) and a holding-down device 26 which keeps these plates at a distance and presses them down with a clamping plate 21.
  • the hold-down device is released and removed, while the bulkhead plates remain on the finished part.
  • the finished parts are separated in the middle between the bulkhead plates by cutting the tie rods and lifted out with the aid of the pins 25 arranged on the bulkhead plates.
  • a disadvantage of this construction is that the end faces of the finished parts have to be treated a number of times after they have been excavated. Only after the finished parts have been lifted out can the bulkhead plates with the gap seals be removed and the stumps of the tie rods that still protrude far after the first separating cut can be cut flush with the end face again. This work is costly and therefore uneconomical.
  • the object of the invention is to develop a formwork of the type mentioned, in which, after concreting, the end faces of the prefabricated parts only have to be treated once during demoulding, the tendons being cut off to their final length at the same time.
  • a clamping bed 1 in which tendons 3 are tensioned from abutment to abutment, 2 prefabricated parts 4/1, 4/2, .. 4 / k are manufactured in a form that extends essentially in the longitudinal direction.
  • the formwork 2 is built up from the side elements 7 of the instep bed, the base plates 5/1, 5/2, Vietnamese 5 / k fitted between them and storage devices 6.
  • the parking device 6 includes the sealing plates 8 and the clamping plate 13, the sealing plates 19 U-shaped and forms the end formwork of two adjoining prefabricated parts 4 / m, 4 / m + 1 in the clamping bed 1.
  • the Schott plates 8 overlap the slots tendons 3 and sit on their lower edge 10 on the spacer plates 12. At their upper edge 11 they are welded to the clamping plate 13.
  • the parking device 6 is held down with the help of the clamping screw 16 held in the sleeve 14 of the clamping plate 13 and the clamping device 15 and pressed against the base plates 5m, 5m +1.
  • the bulkhead plates 8 are inclined towards one another at an acute angle 17 in order to make it easier to detach the parking device 6 from the concrete when pulling after concreting.
  • the storage device 6 is provided with stiffening ribs 18 on the lower edges of the bulkhead plates 8.
  • sealing plates 19, which are provided with recesses 20 and sealing springs 21 are pushed from the side onto each group of the associated slots 9 of the partition plates 8 penetrating tendons 3, so that the recesses 20 Grip tendons 3 in the longitudinal direction and hold the height in their target position.
  • the protruding from the lateral edge surfaces of the sealing plate 19 sealing springs 21 engage in the spaces between the tendons 3 in the slots 9 of the bulkhead plates 8 and seal the slots against the concrete introduced into the formwork.
  • the spacer plate 19 has a sleeve 22, against the upper edge 23 of which a collar 24 of the clamping screw 16 presses.
  • the spacer plate 12 is thus also pressed against the fitted bed substructure.
  • the parking devices 6 are pulled out of the formwork.
  • the tendons 3 are cut close above the end faces of the precast elements 4 and the precast elements 4 are lifted out of the formwork with a cross member 25.
  • the finished parts 4 are held by rotatably mounted clamping devices 26, which press against the end faces of the finished parts and are of such a low height that they enter the space between the finished parts 4 / n, 4 / n after the parking device 6 has been pulled + 1 arises, can be introduced.
  • All parts used for formwork of the precast elements 4 in the fitted bed 1 - e.g. B. 8, 13, 16, 19 - are dimensioned in their extension upwards so that they do not protrude beyond the upper edge of the side elements 7 and do not hinder the formwork from being run over by pavers.

Landscapes

  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Chemical & Material Sciences (AREA)
  • Ceramic Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Manufacturing Of Tubular Articles Or Embedded Moulded Articles (AREA)
  • Moulds, Cores, Or Mandrels (AREA)
EP19890106593 1988-04-16 1989-04-13 Coffrage pour éléments de construction en béton armé fabriqués en série, et en particulier pour traverses d'aiguillages en béton précontraint Withdrawn EP0338423A3 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19883812719 DE3812719C1 (fr) 1988-04-16 1988-04-16
DE3812719 1988-04-16

Publications (2)

Publication Number Publication Date
EP0338423A2 true EP0338423A2 (fr) 1989-10-25
EP0338423A3 EP0338423A3 (fr) 1990-10-10

Family

ID=6352140

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19890106593 Withdrawn EP0338423A3 (fr) 1988-04-16 1989-04-13 Coffrage pour éléments de construction en béton armé fabriqués en série, et en particulier pour traverses d'aiguillages en béton précontraint

Country Status (3)

Country Link
EP (1) EP0338423A3 (fr)
DE (1) DE3812719C1 (fr)
ES (1) ES2011227A4 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL1023230C2 (nl) * 2003-04-22 2004-10-26 Herikon B V Malinrichting voorzien van draadopspanmiddelen.
EP2122055B1 (fr) * 2007-01-22 2016-04-13 RAIL.ONE GmbH Procédé de fabrication de traverses d'aiguille

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL9300605A (nl) * 1993-04-07 1994-11-01 Bonna Vianen Kopschot voor het vervaardigen van voorgespannen betonnen palen, alsmede werkwijze daarvoor.
DE4427401B4 (de) * 1994-08-03 2005-05-04 Pfleiderer Infrastrukturtechnik Gmbh & Co. Kg Vorrichtung zur Herstellung von im wesentlichen stabförmigen Spannbetonfertigteilen, vornehmlich Schwellen
NL1004064C2 (nl) * 1996-09-18 1998-03-19 Leenstra Machine En Staalbouw Inrichting voor het vervaardigen van heipalen.
DE102015009566B4 (de) * 2015-06-12 2017-01-05 Leonhard Moll Betonwerke Gmbh & Co Kg Verfahren und Vorrichtung für ein Verfahren zur Herstellung von Spannbetonfertigteilen, insbesondere Spannbetonschwellen oder Spannbetonweichenschwellen

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR944417A (fr) * 1947-03-31 1949-04-05 Procédé de fabrication d'éléments en béton moulé et installations pour la miseen oeuvre de ce procédé
GB708062A (en) * 1950-11-13 1954-04-28 Nat Res Dev Improvements in or relating to the production of concrete members
US3070867A (en) * 1959-12-21 1963-01-01 Theodore J Belle Strand holder and dam for prestressed concrete molds
DE3448053A1 (de) * 1984-11-03 1986-05-22 Wayss & Freytag Ag, 6000 Frankfurt Schalung fuer serienfertigteile aus stahlbeton, vornehmlich fuer vorgespannte weichenschwellen

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL1023230C2 (nl) * 2003-04-22 2004-10-26 Herikon B V Malinrichting voorzien van draadopspanmiddelen.
EP2122055B1 (fr) * 2007-01-22 2016-04-13 RAIL.ONE GmbH Procédé de fabrication de traverses d'aiguille

Also Published As

Publication number Publication date
ES2011227A4 (es) 1990-01-01
DE3812719C1 (fr) 1989-07-06
EP0338423A3 (fr) 1990-10-10

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