EP0260190A2 - Formen für eine Spannbettanlage - Google Patents

Formen für eine Spannbettanlage Download PDF

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Publication number
EP0260190A2
EP0260190A2 EP19870401990 EP87401990A EP0260190A2 EP 0260190 A2 EP0260190 A2 EP 0260190A2 EP 19870401990 EP19870401990 EP 19870401990 EP 87401990 A EP87401990 A EP 87401990A EP 0260190 A2 EP0260190 A2 EP 0260190A2
Authority
EP
European Patent Office
Prior art keywords
module
comb
molds
bench
improved device
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
EP19870401990
Other languages
English (en)
French (fr)
Other versions
EP0260190B1 (de
EP0260190A3 (en
Inventor
Jean-Pierre Costamagna
Jean-Louis Feuillade
Paul Savard-Chambard
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.)
RECTOR SA
Original Assignee
RECTOR SA
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 RECTOR SA filed Critical RECTOR SA
Publication of EP0260190A2 publication Critical patent/EP0260190A2/de
Publication of EP0260190A3 publication Critical patent/EP0260190A3/fr
Application granted granted Critical
Publication of EP0260190B1 publication Critical patent/EP0260190B1/de
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
    • B28B7/00—Moulds; Cores; Mandrels
    • B28B7/24—Unitary mould structures with a plurality of moulding spaces, e.g. moulds divided into multiple moulding spaces by integratable partitions, mould part structures providing a number of moulding spaces in mutual co-operation
    • 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
    • B28B23/043—Wire anchoring or tensioning means for the reinforcements

Definitions

  • a prestressing bench for the production of elongated prestressed concrete products.
  • the molds used no longer have the length of the bench, but consist of modules or battery of parallel molds, of defined lengths (of the order of 8 to 12 meters) short, relative to that of the bench (of the order of 80 to 100 meters) and mounted in a chassis.
  • a module can comprise ten parallel molds, of the same length, and the bench can comprise eight identical successive modules.
  • a bench of this type can therefore comprise a large number of successive modules, the molds of the adjacent modules being aligned so that the same bundle of prestressing wires passes through it successively.
  • the sides of two neighboring molds are integral with each other, and slide in both directions on a frame under the action of cleats carried by a bar, so that a displacement of this bar in a firm direction every module molds and moving in an opposite direction opens all of said molds.
  • the ends of the molds are produced in the form of blocks of elastic material comprising the means for positioning the wires.
  • This device for opening and closing the molds ensures good release of the concrete elements with respect to the mold, however it causes each displacement of the molds, a displacement of the longitudinal axes of the products, during the phases of preparation of the formwork and the opening of the molds, and this displacement poses new difficulties.
  • the steel wires are held at the ends of the bench in headers connected to tensioning cylinders.
  • the attachment points of the wires are stationary transversely so that they do not slide on the trimmer with the transverse movements of the molds.
  • the objective of the invention is to allow immobilization after installation, of the position of the prestressing steels relative to the concrete parts to be manufactured, regardless of the position of the mold sides of said part, and to facilitate movement opening the molds.
  • the subject of the invention is an improved device for prestressing bench for the production of elongated products comprising at least one module of opening molds, parallel to each other, the sides of the molds being mounted integral with one another on a longitudinal plate sliding on a chassis under the action of a displacement bar, comprising on each side of the module, edges, at least one of which is fixed, and comprising prestressing wires fixed on the end caps of benches, characterized in that at least an end module of the bench comprises, between the trimmer and the end of the nearest module, a rigid comb, of a length equal at least to the width of the module, cooperating with the displacement bar of the sides of the molds, provided with vertical slots for the passage and positioning of the prestressing wires, mounted to pivot horizontally between the trimmer and the module, the articulation being arranged in the extension of the fixed edge of the module.
  • the comb has at its end opposite the articulation a connecting device cooperating with an extension arm of the movable longitudinal end edge, making it possible to coordinate the rotation of the comb when the shore moves, and the sides of the molds in one direction or in the opposite direction;
  • the connecting device is a passage made in the comb, provided with rolling rollers cooperating with a bearing range of the arm;
  • the end of the comb is connected to the end of the bench by a return and push cylinder.
  • Figure 1 shows in perspective a module 1 end of prestressing bench.
  • the bench is not shown in its entirety but can reach great lengths, for example 80 to 100 meters and more, and comprises a plurality of modules 1, 1 ⁇ in series one behind the other.
  • This module 1 consists of a set of molds 4 arranged in a battery on a chassis 3, parallel to each other along the longitudinal axis 2 of the prestressing bench.
  • Each mold 4 consists of two sidewalls 5 and 6, movable transversely, and the flanks 6, 5 'of two adjacent molds 4, 4'are mounted integral with each other as described for example in patent No. 78.26898.
  • the module has longitudinal edges 8, 9 of which at least one, called the "original bank" 8, is fixed and integral with the chassis.
  • the end module 1 there is between the end module 1, and more precisely between the end of the molds and the trimmer 12 for fixing the wires 14, a comb 11, articulated on the end of the stationary bank of origin 8 ; so that it pivots horizontally in the space between the module and the header 12. It has vertical slots 13 provided for the passage and positioning of the prestressing wires 14, as indicated in the figures.
  • the rotation of the peinge 11 around its axis 15 is accompanied by a displacement of the slots transversely with respect to the longitudinal axis 2.
  • the comb 11 comprises means for controlling the pivoting.
  • the bank 9 said end bank, opposite the original bank 8 fixed, is transversely movable in the same movement as the other mold sides.
  • the comb 11 at its end 18 opposite the articulation comprises a passage of vertical cross section, provided with a rolling means 19, for example rolling rollers, and this passage is intended to receive a longitudinal extension 10 of the bank 9, in the form of a substantially rectilinear arm, oriented towards the end of the bench, and provided with a bearing surface 20.
  • This passage thus ensures a movable connection between the comb 11 and the bank 9.
  • the bank 9 When the bank 9 is moved in one direction by the device for controlling the movement of the mold flanks, it causes the comb to rotate in one direction, and when the shore is moved in the opposite direction, it causes the comb to rotate in the opposite direction.
  • the movable edge 9 has no extension.
  • the end 18 of the comb is connected to the end of the bench by a jack whose action is coordinated with the device for controlling the movement of the mold flanks.
  • the improved device according to the invention can be arranged either at each end of the prestressing bench or at a single end, or even paired as illustrated in FIG. 3.
  • the comb is made of metal, made from an I, or H steel profile.

Landscapes

  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Chemical & Material Sciences (AREA)
  • Ceramic Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Moulds, Cores, Or Mandrels (AREA)
  • Moulds For Moulding Plastics Or The Like (AREA)
EP19870401990 1986-09-08 1987-09-04 Formen für eine Spannbettanlage Expired - Lifetime EP0260190B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR8612546A FR2603515B1 (fr) 1986-09-08 1986-09-08 Perfectionnement aux moules pour banc de precontrainte
FR8612546 1986-09-08

Publications (3)

Publication Number Publication Date
EP0260190A2 true EP0260190A2 (de) 1988-03-16
EP0260190A3 EP0260190A3 (en) 1989-09-27
EP0260190B1 EP0260190B1 (de) 1991-04-24

Family

ID=9338764

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19870401990 Expired - Lifetime EP0260190B1 (de) 1986-09-08 1987-09-04 Formen für eine Spannbettanlage

Country Status (2)

Country Link
EP (1) EP0260190B1 (de)
FR (1) FR2603515B1 (de)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
RU2121920C1 (ru) * 1997-04-23 1998-11-20 Виктор Аршакович Кеворков Завод железобетонных изделий
RU2682832C1 (ru) * 2018-03-06 2019-03-21 Федеральное государственное бюджетное образовательное учреждение высшего образования "Тамбовский государственный технический университет" (ФГБОУ ВО "ТГТУ") Поддон для изготовления ригеля с термовкладышами каркаса сборно-монолитного здания

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR914905A (fr) * 1945-04-23 1946-10-22 Solives pour planchers en béton armé et leur mode de fabrication
US3084910A (en) * 1960-04-29 1963-04-09 William D Allers Apparatus for forming prestressed concrete sheets
US4084928A (en) * 1976-11-03 1978-04-18 Cmi Corporation Slip form having reinforcement accommodating means

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
RU2121920C1 (ru) * 1997-04-23 1998-11-20 Виктор Аршакович Кеворков Завод железобетонных изделий
RU2682832C1 (ru) * 2018-03-06 2019-03-21 Федеральное государственное бюджетное образовательное учреждение высшего образования "Тамбовский государственный технический университет" (ФГБОУ ВО "ТГТУ") Поддон для изготовления ригеля с термовкладышами каркаса сборно-монолитного здания

Also Published As

Publication number Publication date
FR2603515B1 (fr) 1990-07-27
FR2603515A1 (fr) 1988-03-11
EP0260190B1 (de) 1991-04-24
EP0260190A3 (en) 1989-09-27

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