EP2386396A2 - Procédé de fabrication d'éléments de construction en béton précontraint, notamment traverses de chemin de fer en béton dans un lit allongé à moules - Google Patents

Procédé de fabrication d'éléments de construction en béton précontraint, notamment traverses de chemin de fer en béton dans un lit allongé à moules Download PDF

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Publication number
EP2386396A2
EP2386396A2 EP11165751A EP11165751A EP2386396A2 EP 2386396 A2 EP2386396 A2 EP 2386396A2 EP 11165751 A EP11165751 A EP 11165751A EP 11165751 A EP11165751 A EP 11165751A EP 2386396 A2 EP2386396 A2 EP 2386396A2
Authority
EP
European Patent Office
Prior art keywords
mold
molds
groups
concrete
bed
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
EP11165751A
Other languages
German (de)
English (en)
Other versions
EP2386396B1 (fr
EP2386396A3 (fr
Inventor
Ralf Kortmann
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.)
Leonhard Moll Betonwerke & Co KG GmbH
Original Assignee
Leonhard Moll Betonwerke & Co KG GmbH
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 Leonhard Moll Betonwerke & Co KG GmbH filed Critical Leonhard Moll Betonwerke & Co KG GmbH
Publication of EP2386396A2 publication Critical patent/EP2386396A2/fr
Publication of EP2386396A3 publication Critical patent/EP2386396A3/fr
Application granted granted Critical
Publication of EP2386396B1 publication Critical patent/EP2386396B1/fr
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Anticipated expiration legal-status Critical

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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
    • B28B7/26—Assemblies of separate moulds, i.e. of moulds or moulding space units, each forming a complete mould or moulding space unit independently from each other
    • B28B7/266—Assemblies of separate moulds, i.e. of moulds or moulding space units, each forming a complete mould or moulding space unit independently from each other for making oblong objects, e.g. girders
    • 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
    • B28B23/04—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 the elements being stressed
    • B28B23/06—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 the elements being stressed for the production of elongated articles

Definitions

  • the invention relates to a method for the production of prestressed concrete construction elements, in particular concrete railroad sleepers by means of a form bed, which receives reinforcing steels, wherein a plurality of molds are arranged in a line in a row and the reinforcing steels fed over the entire line length and the molds are filled with concrete, the molds continue are executed in mold groups and have lateral closure parts, wherein further a mold separation takes place at one end of the mold bed according to the preamble of claim 1.
  • the local form bed accommodates tensioned reinforcement wires and closure components between different elements, wherein the elements are produced in the concrete casting process.
  • closure members Prior to casting, closure members are arranged in the forming bed in predetermined portions, which are shaped to connect at least two cast members via lands or shoulders projecting outwardly from the members and surrounding the reinforcing wires such that the element string is joined to one end of the bed the Elements can be cut from each other separating station.
  • the element string to be cut sequentially is advanced to the station separating the elements on a conveyor movable along the bed.
  • the cast elements according to the prior art solution are removed from the forming bed by either lowering the molds or by rotating the molds after the casting operation and then pushing the element strand down out of the molds.
  • the prior art form beds are designed to be relatively long and have several, along the bed aufeinder vond arranged forms, which in z. B. groups of four are divisible.
  • the handling units according to DE 28 18 088 A1 have webs or shoulders, which are arranged at the ends and which surround the reinforcing wires, but form a smallest possible concrete cross-section, so that only a small area is to be cut through the elements separating device.
  • a mold group contains a plurality of molds which are arranged transversely to the line, wherein means for in particular rail mobility are formed on each mold or mold group.
  • the respective mold group is cleaned and prepared for re-use, these steps being carried out spatially in the area of the central section.
  • Remains of concrete from mold cleaning are each centrally located. Dispensing of release agent within the production device is prevented by a corresponding encapsulated station in which the release agent is to be introduced into the molds.
  • the central station makes it easy to eliminate molds from product changes or from individual molds for repair, resulting in advantages in a frequently changing product program.
  • the cleaned groups of molds are then assembled into a new line until the entire line length is filled and ready for the introduction of the reinforcement and the tension of the same.
  • the z. B. includes a saw to separate the respective following group of shapes, etcschalen and clean.
  • the lifting and transport means for filling the mold groups and molds with fresh concrete and the transport means for the empty transport are provided in different levels for simultaneous, mutually non-disabling use.
  • Ausgestaltend several lines with a variety of shapes without otherwise necessary space for product storage along side by side can be arranged.
  • the transportation of the molds from the central mold treatment device to the line can be largely automated to eliminate or minimize hazards due to hovering or moving loads for the production personnel.
  • the embodiment is based on two parallel juxtaposed lines, in which there are concrete strands that can be re-clamped. All forms or the respective group of forms can be moved.
  • the re-clamping of a first of the two lines is realized in that the prestressing steel is separated in the region of the clamping heads. Thereafter, a movable saw is moved to a first position to sever the prestressing steel on a respective mold group having a plurality of individual shapes. Then the saw moves to a second position and separates the first shape from the strand.
  • a central mold treatment section which can be realized by a hydraulic cylinder or similar movement-generating means.
  • a manipulator picks up the severed mold and spills it into a stripping section.
  • the products, namely concrete sleepers are removed from the mold, for which a Ausschalkran application applies.
  • the now emptied form is subjected to mold cleaning in the central section. If the mold is to be removed from the production process and possibly replaced by a modified mold, this can now happen.
  • the cleaned and ready-to-use mold is moved to the section "Completing installation with built-in parts and storage boards".
  • the molds grouped forms are transverse to the longitudinal direction of the line assembly on rails and even have wheelsets on. Distances remain between the mold groups, so that after hardening of the concrete, the separation of the respective shape from the strand takes place, so that only the actual tensioning or reinforcing steel has to be severed.
  • the tensioning strand is advanced around a complete group of molds so that the saw can then separate the next forming group.

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)
  • Devices For Post-Treatments, Processing, Supply, Discharge, And Other Processes (AREA)
EP11165751.6A 2010-05-11 2011-05-11 Procédé de fabrication d'éléments de construction en béton précontraint, notamment traverses de chemin de fer en béton dans un lit allongé à moules Active EP2386396B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE201010020161 DE102010020161A1 (de) 2010-05-11 2010-05-11 Verfahren zur Herstellung von vorgespannten Betonkonstruktionselementen, insbesondere Betoneisenbahnschwellen mittels Formbett

Publications (3)

Publication Number Publication Date
EP2386396A2 true EP2386396A2 (fr) 2011-11-16
EP2386396A3 EP2386396A3 (fr) 2014-02-26
EP2386396B1 EP2386396B1 (fr) 2016-08-10

Family

ID=44454102

Family Applications (1)

Application Number Title Priority Date Filing Date
EP11165751.6A Active EP2386396B1 (fr) 2010-05-11 2011-05-11 Procédé de fabrication d'éléments de construction en béton précontraint, notamment traverses de chemin de fer en béton dans un lit allongé à moules

Country Status (3)

Country Link
EP (1) EP2386396B1 (fr)
DE (1) DE102010020161A1 (fr)
PL (1) PL2386396T3 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103552152A (zh) * 2013-11-07 2014-02-05 安徽省巢湖铸造厂有限责任公司 桥用轨枕的生产方法

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2818088A1 (de) 1977-04-29 1978-11-09 A Betong Ab Verfahren zur herstellung von vorgespannten konstruktionselementen in einem langen formbett

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB599619A (en) * 1945-02-08 1948-03-17 Alltools Ltd Improvements in apparatus for the manufacture of prefabricated building units
GB572385A (en) * 1943-04-08 1945-10-05 Dowsett Engineering Constructi Improvements in the production of pre-stressed reinforced concrete sleepers and similar beams
GB637185A (en) * 1947-04-24 1950-05-17 Dowsett Engineering Constructi Improvements in the production of pre-stressed reinforced concrete sleepers and similar beams
US3556049A (en) * 1968-04-16 1971-01-19 Little Inc A Cleaning and oiling system for molding apparatus
NL7605619A (nl) * 1976-05-25 1977-11-29 Dow Mac Concrete Ltd Gewapend betonnen artikelen.
AT355975B (de) * 1977-05-23 1980-04-10 Leitl Werke Bauhuette Anlage zur herstellung von bewehrten trag- elementen
ATE90906T1 (de) * 1984-03-16 1993-07-15 Air Products And Chemicals Pur Formtrennmittel und mit diesem durchfuehrbares verfahren zur herstellung von gegenstaenden aus polyurethanschaum.
FI73383C (fi) * 1984-04-02 1987-10-09 Partek Ab Foerfarande och anlaeggning foer tillverkning av en foerspaend kontinuerlig betongprodukt.
IT1206781B (it) * 1987-04-29 1989-05-03 Scac Spa Impianto per la fabbricazione di manufatti lineari in cemento armato precompresso.

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2818088A1 (de) 1977-04-29 1978-11-09 A Betong Ab Verfahren zur herstellung von vorgespannten konstruktionselementen in einem langen formbett

Also Published As

Publication number Publication date
EP2386396B1 (fr) 2016-08-10
DE102010020161A1 (de) 2011-11-17
EP2386396A3 (fr) 2014-02-26
PL2386396T3 (pl) 2017-03-31

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