EP1212179B1 - Procede et appareil de coulage de produits en beton - Google Patents

Procede et appareil de coulage de produits en beton Download PDF

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Publication number
EP1212179B1
EP1212179B1 EP00949502A EP00949502A EP1212179B1 EP 1212179 B1 EP1212179 B1 EP 1212179B1 EP 00949502 A EP00949502 A EP 00949502A EP 00949502 A EP00949502 A EP 00949502A EP 1212179 B1 EP1212179 B1 EP 1212179B1
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EP
European Patent Office
Prior art keywords
forming means
bed
casting
concrete
cores
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 - Lifetime
Application number
EP00949502A
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German (de)
English (en)
Other versions
EP1212179A1 (fr
Inventor
Heikki Kankkunen
Aimo Seppänen
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.)
Consolis Technology Oy AB
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Consolis Technology Oy AB
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Publication date
Application filed by Consolis Technology Oy AB filed Critical Consolis Technology Oy AB
Publication of EP1212179A1 publication Critical patent/EP1212179A1/fr
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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
    • B28B7/00—Moulds; Cores; Mandrels
    • B28B7/0002—Auxiliary parts or elements of the mould
    • B28B7/0014—Fastening means for mould parts, e.g. for attaching mould walls on mould tables; Mould clamps
    • 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
    • B28B1/00—Producing shaped prefabricated articles from the material
    • B28B1/08—Producing shaped prefabricated articles from the material by vibrating or jolting
    • B28B1/084—Producing shaped prefabricated articles from the material by vibrating or jolting the vibrating moulds or cores being moved horizontally for making strands of moulded articles

Definitions

  • Slipform casting is a commonly used concrete element casting method. Slipform casting can also be carried out by means of core pipes. In a first stage, before the core pipes are mounted, fresh concrete that will form the lower part of the slab to be cast is fed onto the bed. After mounting the core pipes, fresh concrete that will form the upper part of the slab is fed on top of and between the pipes. Usually, slipform casting is used for producing a long, continuous cast that, once hardened, is sawn into sections of the desired length. From a handling point of view, however, it is more preferable in some cases to produce castings having their final length.
  • the method according to the invention makes it possible to provide the correct final shape both at the front and the back end of the cast.
  • the portion of slab end waste pieces would be proportionally greater than in the production of long, continuous slabs that are afterwards sawn into sections of the desired length. It is therefore particularly important to avoid producing waste pieces in the case of short slabs.
  • the ends of the concrete pre-stressing wires can be anchored to a headplate while the other ends thereof can be anchored to an endplate. Furthermore, because short elements do not always have to be pre-stressed, the invention can be implemented using non-tensioned wires or reinforcement bars.
  • a movable anchor plate is employed that forms either the headplate or the endplate. It can be mounted in a desired position on the casting bed according to the length of the element to be cast.
  • the frame 1 is movable in relation to the bed 2, in the direction of arrow A, either the frame moving relative to the stationary bed, or the bed moving relative to the stationary frame.
  • the power drive of the device is not shown in the drawings.
  • Two feed tanks 3 and 4 are supported on the frame, and below these belt conveyors 5 and 6 that feed fresh concrete into feeding hoppers 7 and 8.
  • the apparatus comprises parallel tubular vibrating shoes 9, having a bottom sloping to position its front end higher than its back end, and parallel core pipes 10 behind them.
  • the vibrating shoes and core pipes are supported on the frame at their upper parts by means of flat irons 11.
  • the vibrating shoes are vibrated by a vibrator 12.
  • a top plate 14 vibrated by a vibrator 15 is provided at the rear end of the apparatus.
  • a motor 13 sets the core pipes 10 into a continuous longitudinal back and forth motion, each pipe moving in the opposite direction in relation to the adjacent pipe.
  • a headplate 16 is provided, forming a vertical end wall at the front end.
  • the headplate comprises parallel openings 17 to receive the moving core pipes (Figure 1a).
  • the upper edge of the headplate comprises cuts 18 to receive the core pipe supports. Further, the upper and the lower edge of the plate comprise slots 19 for pre-stressing wires.
  • an endplate 20 of the same shape is provided ( Figure 3).
  • the device according to the invention operates as follows:
  • the vibrating shoes and core pipes are situated behind the headplate 16.
  • fresh concrete which will form the bottom part of the slab, is fed onto the bed from a first feed hopper 7, initially located in front of headplate 16.
  • the casting device moves in the casting direction in relation to the bed and the vibrating shoes 9 and the heads of the core pipes 10, as well the supports 11 thereof, are received in the headplate 16.
  • the vibrating shoes vibrate the concrete beneath them, thus making it compact.
  • the rear feed hopper After passing over the headplate 16, to the front of the headplate, the rear feed hopper begins to feed fresh concrete between and onto the core pipes ( Figure 2).
  • the apparatus passes the endplate 20, and the vibrating shoes 9 and the core pipes 10, as well as their supports 11, pass through it ( Figure 4). Once the rear feeding hopper 8 has reached the endplate, the feeding of concrete therefrom is stopped. Thus, the hollow core slab cast is completed.
  • the headplate 16 or the endplate 20 can be removably mounted at the desired position on the bed, so that the position of the plate can be adjusted according to the length of the slab to be cast.
  • Figure 5 a solution is shown in which the stop is fastened to the sides of the bed.
  • the fixing is performed by means of a plate slide 28 having end openings 21.
  • a number of holes 22 are provided, and the slide is locked into the desired position by pushing a pin through the aligning holes 21 and 22.
  • Pre-stressing wires 23 are tensioned by means of the slide.
  • the holes 21 and 22 do not have to be made in horizontal surfaces but they can also be provided in the vertical surfaces of the slide and the sides of the bed.
  • Figures 6a and b show a manner of fixing the movable plate of Figure 5, in cross-section and from above, respectively.
  • the hole 21 in the stop is oval and its larger diameter is transverse to the casting direction.
  • a circular plate 24 is arranged in the hole 21, having a diameter corresponding to the smaller diameter of hole 21.
  • a pin 25 fitting into holes 22 in the sides of the bed is eccentrically fastened to the plate 24.
  • the top plate 26 is provided with an operating and locking lever 27.
  • the stop can be moved by turning the plate 24 in the oval hole 21 by means of lever 27.
  • the holes 22 have the correct spacing with respect to the size of holes 21 and to the eccentricity of the pin 25, the position of the stop can be changed steplessly.
  • wires are fixed by means of an adjustable head- or endplate, less steel is consumed. If the wires are anchored to fixed bed ends, part of their length is wasted. Further, because it is possible to cut the wires only after the stretching stage, use can be made of the wire elongation.

Landscapes

  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Chemical & Material Sciences (AREA)
  • Ceramic Engineering (AREA)
  • Mechanical Engineering (AREA)
  • On-Site Construction Work That Accompanies The Preparation And Application Of Concrete (AREA)
  • Underground Or Underwater Handling Of Building Materials (AREA)
  • Manufacturing Of Tubular Articles Or Embedded Moulded Articles (AREA)
  • Moulds, Cores, Or Mandrels (AREA)

Claims (3)

  1. Procédé de coulage de poutres en T ou d'éléments en béton d'une longueur variable mais spécifique, présentant un ou plusieurs noyaux longitudinaux creux au moyen d'un appareil à coffrage glissant se déplaçant relativement à un lit (2) et comprenant des moyens de formage (10), supportés à leur partie supérieure, pour produire des noyaux, dans ce procédé, à la première étape de celui-ci, du béton frais est amené dans la partie de dalle en dessous des noyaux, et à la deuxième étape de celui-ci, des moyens de formage sont amenés au-dessus de la partie de dalle précitée, et du béton frais est amené entre et sur les moyens de formage, caractérisé en ce qu'une plaque (16,20) est montée sur le lit aux extrémités avant et arrière de l'élément en béton, lesdites plaques comprenant des ouvertures (17) pour recevoir les moyens de formage, et des fentes (18) sont ménagées au-dessus des ouvertures pour recevoir les supports (11) des moyens de formage.
  2. Appareil déplaçable relativement à un lit de coulage (2) pour produire des poutres en T ou des éléments en béton d'une longueur variable mais spécifique, présentant un ou plusieurs noyaux longitudinaux creux, ledit appareil comprenant des moyens (7,8) pour amener du béton frais, des moyens de formage (10) supportés sur le chassis (1) de l'appareil à leur partie supérieure pour produire des noyaux dans l'élément à couler, une paroi supérieure (14) réalisant une forme, et des parois latérales, caractérisé en ce qu'une plaque (16,20) est montée sur le lit de coulage (2), aux extrémités avant et arrière de l'élément, lesdites plaques comprennent des ouvertures (17) pour recevoir les moyens de formage (10), et des fentes (18) ménagées au-dessus des ouvertures pour recevoir les supports (11) des moyens de formage.
  3. Appareil selon la revendication 2, caractérisé en ce que la plaque (16,20) située aux extrémités avant et/ou arrière est fixée au lit (2) de telle manière que sa position peut être ajustée en accord avec la longueur de l'élément à couler.
EP00949502A 1999-08-09 2000-07-10 Procede et appareil de coulage de produits en beton Expired - Lifetime EP1212179B1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
FI991691 1999-08-09
FI991691A FI19991691A (fi) 1999-08-09 1999-08-09 Menetelmä ja laitteisto betonielementtien valamiseksi
PCT/FI2000/000632 WO2001010615A1 (fr) 1999-08-09 2000-07-10 Procede et appareil de coulage de produits en beton

Publications (2)

Publication Number Publication Date
EP1212179A1 EP1212179A1 (fr) 2002-06-12
EP1212179B1 true EP1212179B1 (fr) 2003-11-26

Family

ID=8555130

Family Applications (1)

Application Number Title Priority Date Filing Date
EP00949502A Expired - Lifetime EP1212179B1 (fr) 1999-08-09 2000-07-10 Procede et appareil de coulage de produits en beton

Country Status (8)

Country Link
EP (1) EP1212179B1 (fr)
AT (1) ATE254989T1 (fr)
AU (1) AU6283400A (fr)
DE (1) DE60006830T2 (fr)
DK (1) DK1212179T3 (fr)
ES (1) ES2211575T3 (fr)
FI (1) FI19991691A (fr)
WO (1) WO2001010615A1 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FI20031534A (fi) * 2003-10-20 2005-04-21 Consolis Technology Oy Ab Menetelmä ja laitteisto betonielementtien valamiseksi

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1584837B1 (de) * 1966-08-02 1972-03-09 Wenker Karl Verfahren und Vorrichtung zum Herstellen von bewehrten Formstuecken mit Laengshohlraeumen aus leichten mineralischen Zuschlagstoffen mit Bindemitteln
DE2345944A1 (de) * 1973-09-12 1975-04-10 Manfred Gebert Vorrichtung zur herstellung eines bauelementes aus beton
US4131670A (en) * 1975-09-05 1978-12-26 Solai Vignola Di Fabiani Orlando E C.-Societa In Nome Collettivo Method of making prefabricated building components of expanded material and cement
DE3403183A1 (de) * 1984-01-31 1985-08-01 Klaus Dipl.-Ing. 8000 München Dahm Paletten-umlaufbahn zur fertigung von langgestreckten stahlbeton-fertigteilen

Also Published As

Publication number Publication date
ES2211575T3 (es) 2004-07-16
DE60006830D1 (de) 2004-01-08
DK1212179T3 (da) 2004-04-05
ATE254989T1 (de) 2003-12-15
FI19991691A (fi) 2001-02-10
AU6283400A (en) 2001-03-05
WO2001010615A1 (fr) 2001-02-15
DE60006830T2 (de) 2004-05-27
EP1212179A1 (fr) 2002-06-12

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