WO2010007192A1 - Banc conçu pour la fabrication par moulage d'éléments en béton précontraints - Google Patents

Banc conçu pour la fabrication par moulage d'éléments en béton précontraints Download PDF

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Publication number
WO2010007192A1
WO2010007192A1 PCT/ES2009/070162 ES2009070162W WO2010007192A1 WO 2010007192 A1 WO2010007192 A1 WO 2010007192A1 ES 2009070162 W ES2009070162 W ES 2009070162W WO 2010007192 A1 WO2010007192 A1 WO 2010007192A1
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WO
WIPO (PCT)
Prior art keywords
modules
bank
bank according
mold
concrete
Prior art date
Application number
PCT/ES2009/070162
Other languages
English (en)
Spanish (es)
Inventor
Francisco Javier MARTÍNEZ DE CASTAÑEDA
Manuel Cidoncha Escobar
Original Assignee
Pacadar S.A.
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 Pacadar S.A. filed Critical Pacadar S.A.
Publication of WO2010007192A1 publication Critical patent/WO2010007192A1/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
    • 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
    • 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 present invention concerns in general a bench for the manufacturing by molding of prestressed concrete elements, in particular flat or elongated elements, such as beams, capable of withstanding the stresses of the prestressing, and in particular a modular bank adjustable in length for adapt to the length of the concrete element to be manufactured, by means of the selection and coupling of a certain number of rigid modules.
  • one of said fixed structures is known formed by a rigid frame constituted by two stringers held in parallel by separators, on which a mold is arranged, and by mechanically independent end heads of the mold, one of which is fixed and the other is removable.
  • the patent EP0064377B1 proposes to couple in series some mold units, for example about 3 m. long, between two base units or tensioning bank of prestressing cables.
  • the mold units are coupled together, with the bank units at the ends, preferably crossing the entire assembly with a steel cable or bar, which allows the units to be transported to
  • the mold units proposed in said patent are included in those indicated above as capable of withstanding prestressing efforts.
  • REPLACEMENT SHEET (Rule 26) mold, without the molds used being designed to withstand prestressing efforts.
  • the present invention concerns a bench for the manufacturing by molding of prestressed concrete elements, of the type that constitutes an elongated rigid structure comprising at its ends guide, tensioning and anchoring configurations of cables, and with respect to which at least one mold is arranged open at least one of its sides, generally from above, for the reception of a concrete mixture, positioned between said guiding, tensioning and anchoring configurations so that it is crossed longitudinally by said cables, through of the concrete mixture, to be integrated in the resulting concrete element when solidifying said mixture.
  • the bank proposed by the invention is modular, comprising rigid modules that can be coupled together to form at least one rigid row resistant to the compressive stresses necessary to tension said cables, and is adjustable in length by means of the selection and coupling of a certain number of said modules depending on the length of the concrete element to be manufactured.
  • the bank proposed by the present invention comprises said determined number of rigid modules coupled to each other forming two of said rigid rows, placed substantially parallel to each other to arrange the mold or molds between them.
  • the modules are of the same length, for
  • the bank comprises modules of different lengths, in which case the bank is not only adjustable in length by means of the selection of a certain number of modules, but also by the selection and coupling of modules of different length, that is, taking into account the different length of each module selected to finally add, when connecting the selected modules in series, the desired total length.
  • the bank proposed by the present invention is also adjustable in width, for which it comprises a means of regulating width provided to enable the approach-distance of said rows from each other, and thus the separation between them. This achieves that the width of the bank adapts to that of the mold or molds used.
  • the elongated rigid structure of the bench simply acts as a support base for the mold, the latter being arranged thereon, in which case only a single rigid row of modules coupled to each other would need to be formed (although more rows of modules and arrange the mold on them).
  • the rigid structure defines a path that encompasses and surrounds the mold inside, for which the formation of the two rows of modules mentioned above is required, and in this case the mold can be arranged directly on the ground or on a floor-mounted floor, that is to say without contact with the modules that make up the bank, or use the rigid structure also as a support structure, settling the mold, or structural parts of it, on some supports of the bank that can be part of the modules themselves or on a flattened base or base, of complete or modular constitution, in contact with the modules.
  • the bank proposed by the present invention is intended to be used with a mold of integral constitution, or with a modular mold formed by a certain number of mold units coupled to each other, in a number selected according to the length of the concrete element to be manufactured
  • a procedure for using the proposed bank consists of placing, on or inside the bank (depending on the example of embodiment), a mold with the appropriate geometry to the piece to be manufactured. Subsequently, the cables are tensioned between the guiding, tensioning and anchoring configurations arranged at the ends of the bench, after which concrete is poured onto the mold and when it acquires the necessary resistance, the tension of the cables is eliminated by transferring it to the element manufactured that is prestressed at that time.
  • one of the intermediate modules and their corresponding part of the mold are removed or moved, in the event that it is also modular.
  • the guiding, tensioning and anchoring configuration is moved to the position where the hole has originated.
  • Said guiding, tensioning and anchoring configurations can be very diverse, from configurations defined in specific modules that can only be used as end modules of the bank, to being defined or constituted in removable elements that can be fixed to any of the modules of the bank, so that by removing any of the intermediate modules to reduce the length of the bench, for example one or more of the removable elements, it can
  • REPLACEMENT SHEET (Rule 26) Dismount from the module or modules in which they were fixed and mounted on another module or modules.
  • Said elements are, for an exemplary embodiment, crossbars or heads, which incorporate the known cable tensioning mechanisms, which can each be fixed at the ends of two modules, one of each row, or at masts or intermediate elements to be fixed at the ends of two modules.
  • the bank proposed by the present invention has a large number of advantages over conventional ones, among which are those listed below:
  • the cost of changing the length or width of the bank is greatly reduced as it is a modular design.
  • the bench can be made with different materials such as concrete and steel in a way that optimizes the use of each material.
  • the structure of the modular bench itself can serve as work gateways, for some examples of realization for which the modules have the height and width suitable for the transit of people.
  • Fig. 1 is a side elevational view of the bank proposed by the invention for an exemplary embodiment
  • Fig. 2a is a plan view of the bank of Fig. 1;
  • Fig. 2b is a view analogous to that of Fig. 2a but where the width of the bank has been regulated, reducing the separation between the two rows of modules illustrated;
  • Fig. 3 is a plan view of the bank illustrated according to Fig. 2 housing a modular mold inside;
  • Fig. 4 is a side elevation view of a section taken through the plane indicated by the D-D line in Fig. 3;
  • Fig. 5 is a cross-sectional view of the bank taken through the plane indicated by the line A-A in Fig. 2a;
  • Fig. 6 is a front elevation view of the bank of Fig. 1, according to the direction of
  • Fig. 7 is a cross-sectional view of the bench and the mold of Fig. 3, taken through the plane indicated by line C-C, where the concrete element once manufactured has also been represented;
  • Fig. 8 shows a cross section analogous to that of fig. 7 but for another embodiment for which the bank supports a different mold, and in which an upper mold that forms the shape of the upper face of the concrete element has also been represented;
  • Fig. 9a is an elevation view of a solid block used as a module of the bank proposed by the invention, for an exemplary embodiment
  • Fig. 9b is a plan view of the block illustrated by Fig. 9a; Y
  • Fig. 9c is a cross-sectional view of the block of Fig. 9a taken through the plane indicated by line A-A.
  • REPLACEMENT SHEET (Rule 26) appreciate the bank proposed by the present invention for an embodiment for which it is formed by eight rigid modules B1-B8 coupled in series forming two parallel rigid rows F1, F2.
  • modules B1-B4, B5-B8 are barrier elements, specifically fences in Figs. 1 to 8, generally metallic, or solid parallelepipedic blocks in Figs. 9a to 9c, in general made of concrete, although for other exemplary embodiments, not illustrated, the modules can be of another class as long as they resist the prestressing efforts.
  • modules of four different lengths have been arranged, the length of each pair of facing modules of each of the rows F1, F2 being coincident, that is, of the pairs B1 -B5, B2-B6, B3- B7 and B4-B8.
  • the length of the bank B is adjustable by coupling more or less modules, of greater or lesser length, which may be different (as illustrated in said Figs. 1, 2a and 2b) or equal in length (exemplary embodiment).
  • Figs. 2a and 2b the same bank B can be seen for two different widths, representing in Fig. 2b a smaller width obtained by having moved row F1, in approach, towards row F2, to adapt to a mold of a width smaller than the which would be arranged in bank B in the position illustrated by Fig. 2a.
  • regulation means comprising guiding means G1, G2 on which the modules B1 -B4, B5-B8 are arranged, to enable their displacement according to the direction of the arrows indicated in Fig. 2b, thus regulating the separation between rows F1, F2, and therefore the width of bank B.
  • a series of transverse guide elements G1 are appreciated, which are part of said guiding means.
  • One of said guide elements G1 in the form of a beam or slat, can be seen in Figs. 5, 6, 7 and 8, in which it is also appreciated how the base of the modules (in particular in said figures the opposite modules B1 -B5 and B2-B6) define guide members G2 coupled to the guide element G1 so that they can slide on it.
  • modules B1-B6 are also longitudinally movable in order to allow the separation or annexation of any of them to the modular bench for,
  • REPLACEMENT SHEET (Rule 26) respectively, form a bank of smaller or greater length.
  • Fig. 6 you can see the guiding, tensioning and anchoring configurations arranged at one of the ends of the bench B, which are formed by two crossbars or heads E1, E2 arranged transversely to rows F1, F2, and fixed at the ends of modules B1, B5, at different heights.
  • An analogous arrangement is mounted at the other end of the bank B, as indicated in Figs. 1, 2a, 2b, 3 and 4, where two other crossbars or heads E3, E4 are attached to the ends of modules B4, B8, also at different heights.
  • crossbars or heads E1 -E4 have been represented schematically, but they have conventional mechanisms (not illustrated) necessary for the mentioned tensioning and anchoring functions.
  • each crossbar E1 -E4 defines a series of through holes A, which are coincident and are facing each other between the crosspieces of each end of the bank B, that is, those of E1 with those of E3, and those of E2 with those of E4, for the passage through the cables C.
  • Said cables C are illustrated by broken lines in Fig. 4, where the tensile stresses to which they are subjected are indicated by arrows.
  • FIG. 6 it is also observed how the upper crossbar E1 is inclined, in order to adapt to the shape of the concrete element H to be manufactured.
  • the arrangement of means for regulating (not illustrated) of the inclination and height of any of the crossings E1 -E4 is contemplated in order to adapt to different forms of concrete elements H and different types of M molds and heights to the which are available.
  • Figs. 3 and 4 the same bank B of Figs. 1 and 2a, but once housed inside, between its rows F1, F2, a mold M, which in this case is modular and is formed by five units of mold Um1 -Um5 coupled in series, and open superiorly to receive Ia concrete mix.
  • the bank B comprises supports P
  • REPLACEMENT SHEET (Rule 26) structural units of the mold units, in this case the unit Um3 is appreciated.
  • Said structural parts Me in said Fig. 7 are squares that support, by their inclined face, the sides of the mold unit, in this case Um3, although for another embodiment, not illustrated, the structural parts can be of Different nature and form.
  • the bank B comprises a So or flat base, of integral or modular constitution, on which to arrange the M mold or Um1-Um5 mold units, specifically Fig. 8 shows the mold unit Um3, which is different from the example of embodiment of Fig. 7.
  • FIG. 8 another element necessary to manufacture a concrete element H is illustrated as illustrated in Figs. 6, 7 and 8, specifically this is an upper mold unit U'm3 that forms the shape of the upper face of the concrete element H, and which is fixed to the lower mold unit Um3. Said upper mold has been obviated in the rest of the figures for reasons of clarity.
  • FIGs. 9a to 9c illustrates the exemplary embodiment discussed above for which each of the modules B1-B8 is a solid block, in this case parallelepipedically.
  • block B1 which, as can be seen, includes a joining system comprising:
  • each sheet J1, J2 defining in each of its corners a through hole coinciding with a through hole of the sheet of another block arranged attached for its coupling
  • Eh Figs. 9a and 9b also shows how the block B1 illustrated there (and also the rest of the blocks of the bank B) comprises inserts I on its upper face, for fixing corresponding hooks or gripping devices (not shown) for lifting and transfer.

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  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Chemical & Material Sciences (AREA)
  • Ceramic Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Moulds, Cores, Or Mandrels (AREA)

Abstract

La présente invention concerne un banc conçu pour la fabrication par moulage d'éléments en béton précontraints. Le banc constitue une structure rigide allongée qui comprend à ses extrémités des moyens de guidage, de tension et d'ancrage de câbles (C), et par rapport à laquelle on met en place un moule ouvert (M) conçu pour recevoir un mélange de béton et positionné entre les moyens de guidage, de tension et d'ancrage de façon à être traversé longitudinalement par les câbles (C), à travers le mélange de béton, les câbles restant ainsi intégrés dans l'élément de béton (H) obtenu après solidification du mélange. Ledit banc comprend des modules rigides (B1-B4, B5-B8) qui peuvent être raccordés entre eux pour former une ou plusieurs lignes rigides (F1, F2) résistantes aux efforts de compression nécessaires à la tension des câbles (C). Il est possible de régler la longueur du banc par sélection et raccordement d'un nombre défini de modules (B1 -B4, B5-B8) en fonction de la longueur de l'élément de béton (H) à fabriquer.
PCT/ES2009/070162 2008-06-02 2009-05-20 Banc conçu pour la fabrication par moulage d'éléments en béton précontraints WO2010007192A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
ESP200801813 2008-06-02
ES200801813A ES2330072B1 (es) 2008-06-02 2008-06-02 Banco para la fabricacion por moldeo de elementos de hormigon pretensados.

Publications (1)

Publication Number Publication Date
WO2010007192A1 true WO2010007192A1 (fr) 2010-01-21

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Application Number Title Priority Date Filing Date
PCT/ES2009/070162 WO2010007192A1 (fr) 2008-06-02 2009-05-20 Banc conçu pour la fabrication par moulage d'éléments en béton précontraints

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ES (1) ES2330072B1 (fr)
WO (1) WO2010007192A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3403798A1 (fr) 2017-05-15 2018-11-21 dvb Délmagyarországi Vasbetonipari Kft. Structure mobile et procédé pour la préfabrication de barres de béton précontraint de manière souhaitable

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1334539A (fr) * 1962-06-29 1963-08-09 Veran Costamagna & Cie Perfectionnements aux dispositifs de moulage d'éléments en béton
GB1357836A (en) * 1971-11-11 1974-06-26 Monier Concrete Ind Method and apparatus for the laying of a series of wires in paral lel array
US4149306A (en) * 1978-02-06 1979-04-17 Charles Pankow, Inc. Portable tensioning system for producing pre-stressed concrete beams
EP0064377A2 (fr) * 1981-05-01 1982-11-10 Fuji P.S. Concrete Co. Ltd. Dispositif pour former du béton précontraint par glissement
US5766648A (en) * 1996-10-21 1998-06-16 Cxt Incorporated Road transportable segmental concrete railroad tie long-line production system
US20050017403A1 (en) * 1995-02-02 2005-01-27 Ollendick David P. Methods and apparatus for the manufacturing of prestressed reinforced concrete railroad ties and the like

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1334539A (fr) * 1962-06-29 1963-08-09 Veran Costamagna & Cie Perfectionnements aux dispositifs de moulage d'éléments en béton
GB1357836A (en) * 1971-11-11 1974-06-26 Monier Concrete Ind Method and apparatus for the laying of a series of wires in paral lel array
US4149306A (en) * 1978-02-06 1979-04-17 Charles Pankow, Inc. Portable tensioning system for producing pre-stressed concrete beams
EP0064377A2 (fr) * 1981-05-01 1982-11-10 Fuji P.S. Concrete Co. Ltd. Dispositif pour former du béton précontraint par glissement
US20050017403A1 (en) * 1995-02-02 2005-01-27 Ollendick David P. Methods and apparatus for the manufacturing of prestressed reinforced concrete railroad ties and the like
US5766648A (en) * 1996-10-21 1998-06-16 Cxt Incorporated Road transportable segmental concrete railroad tie long-line production system

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3403798A1 (fr) 2017-05-15 2018-11-21 dvb Délmagyarországi Vasbetonipari Kft. Structure mobile et procédé pour la préfabrication de barres de béton précontraint de manière souhaitable

Also Published As

Publication number Publication date
ES2330072A1 (es) 2009-12-03
ES2330072B1 (es) 2010-06-22

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