EP0672806B1 - Shuttering arrangement and method of application - Google Patents

Shuttering arrangement and method of application Download PDF

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Publication number
EP0672806B1
EP0672806B1 EP95400570A EP95400570A EP0672806B1 EP 0672806 B1 EP0672806 B1 EP 0672806B1 EP 95400570 A EP95400570 A EP 95400570A EP 95400570 A EP95400570 A EP 95400570A EP 0672806 B1 EP0672806 B1 EP 0672806B1
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EP
European Patent Office
Prior art keywords
panel
panels
shuttering
wheels
shuttering 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.)
Expired - Lifetime
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EP95400570A
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German (de)
French (fr)
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EP0672806A1 (en
Inventor
Jean Bard
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Bouygues SA
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Bouygues SA
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Publication date
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Publication of EP0672806A1 publication Critical patent/EP0672806A1/en
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    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
    • E04G19/00—Auxiliary treatment of forms, e.g. dismantling; Cleaning devices
    • E04G19/003—Arrangements for stabilising the forms or for moving the forms from one place to another
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
    • E04G11/00—Forms, shutterings, or falsework for making walls, floors, ceilings, or roofs
    • E04G11/06—Forms, shutterings, or falsework for making walls, floors, ceilings, or roofs for walls, e.g. curved end panels for wall shutterings; filler elements for wall shutterings; shutterings for vertical ducts
    • E04G2011/067—Integrated forms comprising shuttering skin, bracing or strutting arrangements, workplatforms and railings

Definitions

  • the formwork panels are connected at the top by a commercial mechanical device called "compass" on the one hand the transport, with a single crane stroke, of a couple of panels from one point work to another, and secondly to ensure the stability of the panels.
  • a couple of panels are laid on a support slab in a new work site, a first panel is laid ready for formwork while that the second is temporarily kept out of its position of formwork, to allow intervention between panels, by example for carrying out cleaning, lubrication, setting up place of various reinforcements or incorporations.
  • the second panel is close to the first, either by means of crowbars and in successive blows, or crane means.
  • the action of the mine bars deteriorates the formwork and mark the support slab if it is freshly poured
  • the intervention of the crane is penalizing for the productivity and the general organization of the site.
  • the publication FR-A-2 459 860 has proposed a device for formwork comprising two formwork panels connected at the top by at least one articulated structure capable of stabilizing the panels in a spread position allowing access between panels for operations prior to casting and in a close-up position for casting of concrete between the panels, one of the panels being provided with rollers main allowing its movement by rolling between said positions.
  • the object of the present invention is to provide a device of improved formwork allowing the transport of the second panel to its formwork position without damaging it or of the support slab and without crane intervention, and improved stability during the transport.
  • the invention achieves this by the fact that the structure is designed to allow tilting of this roller panel backwards before and during rolling so as to ensure the stability of the formwork device and for allow the straightening of this panel when it has arrived in position close together.
  • the spacing and approximation of the panels can thus be done without deterioration of the support slab or panels, and with high security due to the inclination of the panel fitted with rollers main, before and during taxiing.
  • the articulated structure used is a compass whose joints have, in the close position of panels, sufficient clearance allowing the straightening of the equipped panel main casters.
  • the panel fitted with rollers main also has support casters more distant than the main rollers from its bottom edge, the vertical from the center of gravity of this panel when in an inclined position passing between the axes main casters and support casters.
  • the axis of each roulette support preferably extends between flanges articulated on a support integral with the panel, these flanges being tiltable between a first support position on the ground tending to keep the panel in position straightened and a second support position on the ground corresponding to the tilted position of the panel.
  • the height of the axis of the main rollers, measured from the bottom edge of the panel that they equip, is adjustable, which allows to compensate for irregularities of surface that could present the support slab or to cross obstacles.
  • the formwork device shown in Figure 1 comprises two formwork panels B1 and B2 facing each other, connected superiorly by at least one articulated structure.
  • the panels B1 and B2 are connected by two compasses 10 respectively located at proximity to opposite vertical edges of panels, only one of the two compass 10 being visible in FIG. 1.
  • Each compass 10 includes so known per se two uprights 11 and 12 respectively fixed on the panels B1 and B2 and two pairs of parallel connecting rods 13, 14, articulated at one end on the uprights 11 and 12 and at the other end on a common part 15, of so as to keep the uprights 11 and 12 generally parallel, whatever or the spacing of the panels B1 and B2.
  • the joints of the connecting rods have a clearance which allows an angular movement of the panel B2, this angular travel increasing when the spacing between the panels decreases.
  • the angular travel ⁇ reaches a few degrees on both sides from the position shown in solid lines, which is sufficient to allow straightening of panel B2 from an inclined position, as will be specified below.
  • the panels B1 and B2 are each equipped in a manner known per se on their face opposite to the formwork face of a walkway 16 and of structures respective rear support 20 and 30. We see in Figure 1 that single rear support structure 20 and one rear support structure 30 equipping panels B1 and B2 respectively. Structures 20 and 30 have stays of adjustable length referenced respectively 21 and 31.
  • the formwork device is shown in Figure 1 with the panels B1 and B2 in a separated position allowing to perform between the panels for operations prior to pouring concrete.
  • Panel B1 rests ready for formwork, its formwork face being vertical, on a slab support D by its lower edge A1 and by pads 22 mounted at the lower end of the props 21.
  • the panel B2 is inclined towards the rear, forming with the panel B1 an open angle upwards.
  • the uprights 11 are fixed to panel B1 so as to extend vertically when the latter is placed ready for formwork on the slab support D and the uprights 12 are fixed to the panel B2 so as to extend approximately vertically when panel B2 is tilted toward rear, as shown in Figure 1.
  • the compasses 10 deform while maintaining the two uprights 11 and 12 generally parallel, so keeping the panel B2 tilted backwards, which guarantees great stability to the formwork before and during the bringing together of the panels.
  • This reconciliation is carried out by rolling thanks to rollers main 40 fitted to panel B2 and to support rollers 50 mounted at the lower end of the struts 31, the center of gravity of the panel B2, when tilted back, passing between the axes of rotation, parallel, main rollers 40 and support rollers 50.
  • the main rollers 40 are each supported by an axis 41 rotatably mounted, by support means integral with the panel B2, the as close as possible to the lower edge A2 of the latter.
  • Axis 41 presents an axial end shaped to engage with a ratchet, for the rotational drive of the main wheel 40 associated.
  • the support means of the axis 41 are fixed relative to the panel B2.
  • the pin 41 can be mounted on support means authorizing an adjustment of its height, measured in relation to the lower edge A2, which compensates for irregularities in the surface of the slab support D and avoid obstacles when driving.
  • Axis 41 is positioned by relative to the edge A2 so that in the inclined position of the panel B2, the lower edge A2 does not rest on the support slab D.
  • each rear support structure 30 comprises an arm 33 hinged to a end at 34 on the forestay 31 and having at its other end 35 a hook allowing attachment to panel B2, to maintain the forestay 31 in a support position for panel B2.
  • each support wheel 50 fitted to a stay 31 extends between two flanges 52 pivotally mounted on a support 53 extending lower forestay 31.
  • a tube 54 is reported externally on one of the flanges 52 to receive a flange tilting lever 52.
  • the axle 55 is welded at its ends to the flanges 52.
  • the latter revolve around an axis 56 passing through the support 53 while extending parallel to the axis 55.
  • the support 53 is welded to a flat plate 58, itself bolted to a plate plane 57 welded to the lower end of the forestay 31 and extending generally perpendicular to the longitudinal axis of the latter.
  • the flanges 52 have on their contour two edges 52a and 52b shaped to come into abutment, during the tilting of the flanges 52 around axis 56, against plate 58 in order to define two different positions for the support roller 50, corresponding to FIGS. 3 and 4, and shown in line solid and in broken lines in Figure 5. More specifically, in the position of Figure 3, the flanges 52 abut against the plate 58 by their edges 52a and, in the position of FIG. 3, after tilting of About 90 ° of these clockwise in Figure 2, by their edges 52b, to straighten the panel B2.
  • Each arm 33 comprises, as shown in FIG. 6, two branches articulated by legs 34 on an axis 38.
  • This axis 38 crosses the forestay 31 perpendicular to its longitudinal axis, and extends parallel to the axes 55 and 56.
  • the branches 33 diverge away from the axis 38 with a spacing given by spacers 39 extending parallel to this axis.
  • the formwork device is removed by any lifting means suitable for support slab D, panel B1 being placed directly in its formwork position shown in Figure 7A, in which it defines a opposite the wall to be built.
  • the formwork device is provided lifting hooks L1 and L2 arranged on the panels B1 and B2 so as to that when the formwork device is placed on the support slab D, the panel B1 hits the ground first.
  • the panel B1 rests by its lower edge A1 and by the pads 22 of the rear support structures 20 on the support slab D, its formwork face being vertical.
  • Panel B2 rests on the support slab via main rollers 40 and support rollers 50 in the rolling position, the lower edge A2 being detached from the support slab D, by a distance of 1.5 about cm in the example described.
  • the flanges 52 are in their position of rolling shown in Figure 3, that is to say with the edges 52a coming abutment against plate 58. In this position away from panels B1 and B2 represented in FIG. 7A, cleaning is carried out in a manner known per se panels, their lubrication, the installation of R reinforcements on irons pending or various incorporations.
  • the panel B2 is near panel B1, compasses 10 holding panel B2 tilted while driving.
  • the displacement of panel B2 is preferably carried out at by means of a ratchet engaging the axis 41 of a caster main 40.
  • the panel B2 is straightened by tilting the flanges 52, by means of a lever engaged in the tube 54, until the edges 52b of the latter stop against plate 58.
  • This straightening is possible thanks to the play of joints of the connecting rods 13 and 14 of the compasses 10 in the close position panels.
  • the lower edge A2 of the panel B2 comes to rest on the ground while the main caster 40 takes off slightly from the support slab D.
  • the two panels are advantageously held in a manner known per se, for pouring concrete, by threaded rods F shown in FIG. 7D, these rods allowing to precisely adjust the parallelism of the faces shuttering.
  • the formwork device is dismantled according to figure 7E by slightly tilting the panels B1 and B2 backwards by shortening the props 21 and 31 of the support structures rear 20 and 30. Then the panel B2 is inclined by tilting the flanges 52 towards their rolling position shown in FIG. 3, that is to say with the edges 52a abutting against the plate 58.
  • the formwork device is then removed as shown on the FIG. 7F, using lifting cables C passing through a spacer E, to be moved to a new working position.
  • C cables are separated by a distance greater than the distance between the lifting hooks L1 and L2 of panels B1 and B2, so that when the formwork device is lifted, the panels B1 and B2 tend, under the effect of their own weight, to move away from each other, as shown in Figure 7G.
  • the spacer E is chosen so that the spacing of the panels B1 and B2 during their transport is less than the maximum spacing allowed by the compass 10.
  • the formwork device can be transported with panels B1 and B2 in a position close to their maximum spacing or in a intermediate spacing position between the maximum spacing position and the close position.
  • the second case avoids obstacles during the installation of the formwork device, the spacing of the panels then being corrected, if necessary, by rolling the panel B2.

Description

La présente invention concerne la construction des structures de bâtiments et d'ouvrages de travaux publics, et plus particulièrement un dispositif de coffrage pour la réalisation de murs verticaux, également dénommés voiles, par coulage de béton entre deux panneaux de coffrage, également dénommés banches.The present invention relates to the construction of structures of buildings and public works, and more particularly a formwork device for making vertical walls, also called sails, by pouring concrete between two formwork panels, also known as formwork.

Les panneaux de coffrage sont reliés supérieurement par un dispositif mécanique du commerce dénommé "compas" pour d'une part le transport, d'un seul coup de grue, d'un couple de panneaux d'un point de travail à un autre, et d'autre part pour assurer la stabilité des panneaux. Lorsqu'un couple de panneaux est déposé sur une dalle d'appui en un nouvel emplacement de travail, un premier panneau est posé prêt au coffrage tandis que le deuxième est maintenu provisoirement écarté de sa position de coffrage, afin de permettre une intervention entre les panneaux, par exemple pour effectuer des opérations de nettoyage, de graissage, de mise en place d'armatures ou d'incorporations diverses. Lorsque ces opérations préalables au coffrage sont terminées, le deuxième panneau est rapproché du premier, soit au moyen de barres à mine et par à-coups successifs, soit au moyen de la grue. Dans le premier cas, l'action des barres à mine détériore le coffrage et marque la dalle d'appui si celle-ci est fraíchement coulée, et dans le deuxième cas l'intervention de la grue est pénalisante pour la productivité et l'organisation générale du chantier.The formwork panels are connected at the top by a commercial mechanical device called "compass" on the one hand the transport, with a single crane stroke, of a couple of panels from one point work to another, and secondly to ensure the stability of the panels. When a couple of panels are laid on a support slab in a new work site, a first panel is laid ready for formwork while that the second is temporarily kept out of its position of formwork, to allow intervention between panels, by example for carrying out cleaning, lubrication, setting up place of various reinforcements or incorporations. When these operations formwork is completed, the second panel is close to the first, either by means of crowbars and in successive blows, or crane means. In the first case, the action of the mine bars deteriorates the formwork and mark the support slab if it is freshly poured, and in the second case the intervention of the crane is penalizing for the productivity and the general organization of the site.

On a proposé dans la publication FR-A-2 459 860 un dispositif de coffrage comprenant deux panneaux de coffrage reliés supérieurement par au moins une structure articulée apte à stabiliser les panneaux dans une position écartée permettant l'accès entre les panneaux pour des opérations préalables au coulage et dans une position rapprochée pour le coulage de béton entre les panneaux, l'un des panneaux étant muni de roulettes principales permettant son déplacement par roulage entre lesdites positions.The publication FR-A-2 459 860 has proposed a device for formwork comprising two formwork panels connected at the top by at least one articulated structure capable of stabilizing the panels in a spread position allowing access between panels for operations prior to casting and in a close-up position for casting of concrete between the panels, one of the panels being provided with rollers main allowing its movement by rolling between said positions.

La présente invention a pour objet de proposer un dispositif de coffrage perfectionné permettant d'effectuer le transport du deuxième panneau vers sa position de coffrage sans endommagement de celui-ci ou de la dalle d'appui et sans intervention de la grue, et de stabilité améliorée pendant le transport. The object of the present invention is to provide a device of improved formwork allowing the transport of the second panel to its formwork position without damaging it or of the support slab and without crane intervention, and improved stability during the transport.

L'invention y parvient par le fait que la structure est conçue pour permettre une inclinaison de ce panneau à roulettes vers l'arrière avant et pendant le roulage de façon à assurer la stabilité du dispositif de coffrage et pour permettre le redressement de ce panneau lorsqu'il est arrivé en position rapprochée.The invention achieves this by the fact that the structure is designed to allow tilting of this roller panel backwards before and during rolling so as to ensure the stability of the formwork device and for allow the straightening of this panel when it has arrived in position close together.

L'écartement et le rapprochement des panneaux peuvent ainsi se faire sans détérioration de la dalle d'appui ou des panneaux, et avec une grande sécurité de par l'inclinaison du panneau équipé des roulettes principales, avant et pendant le roulage.The spacing and approximation of the panels can thus be done without deterioration of the support slab or panels, and with high security due to the inclination of the panel fitted with rollers main, before and during taxiing.

Dans une réalisation de l'invention, la structure articulée utilisée est un compas dont les articulations présentent, en position rapprochée des panneaux, un jeu suffisant permettant le redressement du panneau équipé des roulettes principales. Avantageusement, le panneau équipé des roulettes principales présente en outre des roulettes d'appui plus éloignées que les roulettes principales de son bord inférieur, la verticale du centre de gravité de ce panneau lorsqu'il est en position inclinée passant entre les axes des roulettes principales et des roulettes d'appui. L'axe de chaque roulette d'appui s'étend de préférence entre des flasques articulés sur un support solidaire du panneau, ces flasques étant basculables entre une première position d'appui sur le sol tendant à maintenir le panneau en position redressée et une deuxième position d'appui sur le sol correspondant à la position inclinée du panneau. Avantageusement, la hauteur de l'axe des roulettes principales, mesurée par rapport au bord inférieur du panneau qu'elles équipent, est réglable, ce qui permet de compenser des irrégularités de surface que pourrait présenter la dalle d'appui ou de franchir des obstacles.In one embodiment of the invention, the articulated structure used is a compass whose joints have, in the close position of panels, sufficient clearance allowing the straightening of the equipped panel main casters. Advantageously, the panel fitted with rollers main also has support casters more distant than the main rollers from its bottom edge, the vertical from the center of gravity of this panel when in an inclined position passing between the axes main casters and support casters. The axis of each roulette support preferably extends between flanges articulated on a support integral with the panel, these flanges being tiltable between a first support position on the ground tending to keep the panel in position straightened and a second support position on the ground corresponding to the tilted position of the panel. Advantageously, the height of the axis of the main rollers, measured from the bottom edge of the panel that they equip, is adjustable, which allows to compensate for irregularities of surface that could present the support slab or to cross obstacles.

La présente invention a aussi pour objet un procédé pour réaliser un mur en béton comprenant les étapes consistant à :

  • a) déposer à l'aide d'un dispositif de levage un dispositif de coffrage conforme à l'invention, l'un des panneaux étant positionné de manière à définir une face principale du mur à construire, les deux panneaux étant initialement dans une position écartée autorisant l'accès entre eux pour effectuer des opérations préalables au coffrage, telles que le nettoyage, le graissage, la mise en place d'armatures, ou d'incorporations diverses, l'autre panneau étant équipé de roulettes, la stabilité du dispositif de coffrage étant assurée par la ou les structures articulées,
  • b) rapprocher par roulage le panneau équipé de roulettes pour l'amener dans une position où il définit l'autre face principale du mur à construire,
  • c) couler du béton entre les panneaux,
  • d) procéder au décoffrage,
    • caractérisé en ce que le panneau est incliné avant et pendant le roulage et redressé au terme du roulage.The present invention also relates to a method for producing a concrete wall comprising the steps consisting in:
  • a) deposit using a lifting device a formwork device according to the invention, one of the panels being positioned so as to define a main face of the wall to be constructed, the two panels being initially in a position separated allowing access between them to perform operations prior to formwork, such as cleaning, lubrication, the installation of reinforcements, or various incorporations, the other panel being equipped with rollers, the stability of the device formwork being provided by the articulated structure or structures,
  • b) bringing the panel fitted with rollers together to bring it into a position where it defines the other main face of the wall to be constructed,
  • c) pouring concrete between the panels,
  • d) formwork removal,
    • characterized in that the panel is inclined before and during driving and straightened at the end of driving.

    D'autres caractéristiques et avantages de la présente invention apparaítront à la lecture de la description détaillée qui va suivre, d'un exemple de réalisation non limitatif de l'invention, et à l'examen du dessin annexé sur lequel :

    • la figure 1 est une vue de profil montrant un dispositif de coffrage conforme à l'invention, les panneaux de coffrage étant en position écartée,
    • la figure 2 est une vue de profil, partielle, montrant les panneaux en position rapprochée,
    • la figure 3 est une vue détaillée montrant l'agencement des roulettes principales et des roulettes d'appui, en position inclinée de roulage du panneau,
    • la figure 4 est une vue analogue à la figure 3 montrant cette fois-ci le panneau redressé en position de coffrage,
    • la figure 5 est une vue à échelle agrandie illustrant le montage d'une roulette d'appui à l'extrémité inférieure d'un étai stabilisateur,
    • la figure 6 est une vue de face selon la flèche VI de la figure 5,
    • les figures 7A à 7H illustrent différentes étapes de mise en oeuvre du dispositif de coffrage selon l'invention.
    Other characteristics and advantages of the present invention will appear on reading the detailed description which follows, of a non-limiting exemplary embodiment of the invention, and on examining the appended drawing in which:
    • FIG. 1 is a side view showing a formwork device according to the invention, the formwork panels being in the separated position,
    • FIG. 2 is a partial side view showing the panels in the close position,
    • FIG. 3 is a detailed view showing the arrangement of the main rollers and the support rollers, in an inclined position for rolling the panel,
    • FIG. 4 is a view similar to FIG. 3 this time showing the panel straightened in the formwork position,
    • FIG. 5 is a view on an enlarged scale illustrating the mounting of a support wheel at the lower end of a stabilizing stay,
    • FIG. 6 is a front view along the arrow VI in FIG. 5,
    • Figures 7A to 7H illustrate different stages of implementation of the formwork device according to the invention.

    Le dispositif de coffrage représenté sur la figure 1 comprend deux panneaux de coffrage B1 et B2 en regard l'un de l'autre, reliés supérieurement par au moins une structure articulée. Dans l'exemple décrit, les panneaux B1 et B2 sont reliés par deux compas 10 respectivement situés à proximité des bords verticaux opposés des panneaux, l'un seulement des deux compas 10 étant visible sur la figure 1. Chaque compas 10 comprend de façon connue en soi deux montants 11 et 12 respectivement fixés sur les panneaux B1 et B2 et deux couples de bielles parallèles 13, 14, articulées à une extrémité sur les montants 11 et 12 et à l'autre extrémité sur une pièce commune 15, de manière à maintenir les montants 11 et 12 généralement parallèles, quel que soit l'écartement des panneaux B1 et B2. Toutefois, les articulations des bielles présentent un jeu qui autorise un débattement angulaire du panneau B2, ce débattement angulaire augmentant lorsque l'écartement entre les panneaux diminue. En position rapprochée des panneaux, comme représenté sur la figure 2, le débattement angulaire β atteint quelques degrés de part et d'autre de la position représentée en trait plein, ce qui est suffisant pour permettre le redressement du panneau B2 depuis une position inclinée, comme cela sera précisé dans la suite.The formwork device shown in Figure 1 comprises two formwork panels B1 and B2 facing each other, connected superiorly by at least one articulated structure. In the example described, the panels B1 and B2 are connected by two compasses 10 respectively located at proximity to opposite vertical edges of panels, only one of the two compass 10 being visible in FIG. 1. Each compass 10 includes so known per se two uprights 11 and 12 respectively fixed on the panels B1 and B2 and two pairs of parallel connecting rods 13, 14, articulated at one end on the uprights 11 and 12 and at the other end on a common part 15, of so as to keep the uprights 11 and 12 generally parallel, whatever or the spacing of the panels B1 and B2. However, the joints of the connecting rods have a clearance which allows an angular movement of the panel B2, this angular travel increasing when the spacing between the panels decreases. In close position of the panels, as shown in the Figure 2, the angular travel β reaches a few degrees on both sides from the position shown in solid lines, which is sufficient to allow straightening of panel B2 from an inclined position, as will be specified below.

    Les panneaux B1 et B2 sont équipés chacun de façon connue en soi sur leur face opposée à la face coffrante d'une passerelle 16 et de structures d'appui arrière respectives 20 et 30. On n'aperçoit sur la figure 1 qu'une seule structure d'appui arrière 20 et une seule structure d'appui arrière 30 équipant respectivement les panneaux B1 et B2. Les structures 20 et 30 comportent des étais de longueur réglable référencés respectivement 21 et 31.The panels B1 and B2 are each equipped in a manner known per se on their face opposite to the formwork face of a walkway 16 and of structures respective rear support 20 and 30. We see in Figure 1 that single rear support structure 20 and one rear support structure 30 equipping panels B1 and B2 respectively. Structures 20 and 30 have stays of adjustable length referenced respectively 21 and 31.

    Le dispositif de coffrage est représenté sur la figure 1 avec les panneaux B1 et B2 dans une position écartée permettant d'effectuer entre les panneaux des opérations préalables au coulage de béton. Le panneau B1 repose prêt au coffrage, sa face coffrante étant verticale, sur une dalle d'appui D par son arête inférieure A1 et par des patins 22 montés à l'extrémité inférieure des étais 21. Le panneau B2 est quant à lui incliné vers l'arrière, formant avec le panneau B1 un angle ouvert vers le haut. Les montants 11 sont fixés sur le panneau B1 de manière à s'étendre verticalement lorsque ce dernier est posé prêt au coffrage sur la dalle d'appui D et les montants 12 sont fixés sur le panneau B2 de manière à s'étendre à peu près verticalement lorsque le panneau B2 est incliné vers l'arrière, comme représenté sur la figure 1. Lorsque le panneau B2 est rapproché du panneau B1, les compas 10 se déforment en maintenant les deux montants 11 et 12 généralement parallèles, donc en maintenant le panneau B2 incliné vers l'arrière, ce qui garantit une grande stabilité au dispositif de coffrage avant et durant le rapprochement des panneaux.The formwork device is shown in Figure 1 with the panels B1 and B2 in a separated position allowing to perform between the panels for operations prior to pouring concrete. Panel B1 rests ready for formwork, its formwork face being vertical, on a slab support D by its lower edge A1 and by pads 22 mounted at the lower end of the props 21. The panel B2 is inclined towards the rear, forming with the panel B1 an open angle upwards. The uprights 11 are fixed to panel B1 so as to extend vertically when the latter is placed ready for formwork on the slab support D and the uprights 12 are fixed to the panel B2 so as to extend approximately vertically when panel B2 is tilted toward rear, as shown in Figure 1. When panel B2 is close to panel B1, the compasses 10 deform while maintaining the two uprights 11 and 12 generally parallel, so keeping the panel B2 tilted backwards, which guarantees great stability to the formwork before and during the bringing together of the panels.

    Ce rapprochement s'effectue par roulage grâce à des roulettes principales 40 équipant le panneau B2 et à des roulettes d'appui 50 montées à l'extrémité inférieure des étais 31, le centre de gravité du panneau B2, lorsqu'il est incliné vers l'arrière, passant entre les axes de rotation, parallèles, des roulettes principales 40 et des roulettes d'appui 50.This reconciliation is carried out by rolling thanks to rollers main 40 fitted to panel B2 and to support rollers 50 mounted at the lower end of the struts 31, the center of gravity of the panel B2, when tilted back, passing between the axes of rotation, parallel, main rollers 40 and support rollers 50.

    Les roulettes principales 40 sont supportées chacune par un axe 41 monté en rotation, par des moyens de support solidaires du panneau B2, le plus proche possible de l'arête inférieure A2 de ce dernier. L'axe 41 présente une extrémité axiale conformée pour venir en prise avec une clé à cliquet, pour l'entraínement en rotation de la roulette principale 40 associée. Dans l'exemple décrit, les moyens de support de l'axe 41 sont fixes par rapport au panneau B2. En variante, on peut monter l'axe 41 sur des moyens de support autorisant un réglage de sa hauteur, mesurée par rapport à l'arête inférieure A2, ce qui permet de compenser des irrégularités de surface de la dalle d'appui D et d'éviter des obstacles lors du roulage. L'axe 41 est positionné par rapport à l'arête A2 de manière à ce qu'en position inclinée du panneau B2, l'arête inférieure A2 ne repose pas sur la dalle d'appui D.The main rollers 40 are each supported by an axis 41 rotatably mounted, by support means integral with the panel B2, the as close as possible to the lower edge A2 of the latter. Axis 41 presents an axial end shaped to engage with a ratchet, for the rotational drive of the main wheel 40 associated. In the example described, the support means of the axis 41 are fixed relative to the panel B2. Alternatively, the pin 41 can be mounted on support means authorizing an adjustment of its height, measured in relation to the lower edge A2, which compensates for irregularities in the surface of the slab support D and avoid obstacles when driving. Axis 41 is positioned by relative to the edge A2 so that in the inclined position of the panel B2, the lower edge A2 does not rest on the support slab D.

    Comme représenté plus particulièrement sur les figures 3 et 4, l'étai 31 est articulé à son extrémité supérieure en 32 sur le panneau B2. Chaque structure d'appui arrière 30 comporte un bras 33 s'articulant à une extrémité en 34 sur l'étai 31 et présentant à son autre extrémité 35 un crochet permettant l'accrochage sur le panneau B2, pour maintenir l'étai 31 dans une position de soutien du panneau B2.As shown more particularly in FIGS. 3 and 4, the forestay 31 is articulated at its upper end at 32 on the panel B2. Each rear support structure 30 comprises an arm 33 hinged to a end at 34 on the forestay 31 and having at its other end 35 a hook allowing attachment to panel B2, to maintain the forestay 31 in a support position for panel B2.

    On a détaillé sur les figures 5 et 6 le montage de la roulette d'appui 50 à l'extrémité inférieure de l'étai 31. Conformément à une caractéristique avantageuse de l'invention, et comme représenté plus particulièrement sur la figure 6, l'axe 55 de chaque roulette d'appui 50 équipant un étai 31 s'étend entre deux flasques 52 montés à basculement sur un support 53 prolongeant inférieurement l'étai 31. Un tube 54, non représenté sur la figure 6 pour des raisons de clarté du dessin, est rapporté extérieurement sur l'un des flasques 52 pour recevoir un levier de basculement des flasques 52. L'axe 55 est soudé à ses extrémités aux flasques 52. Ces derniers s'articulent autour d'un axe 56 traversant le support 53 en s'étendant parallèlement à l'axe 55. Le support 53 est soudé sur une plaque plane 58, elle-même boulonnée sur une plaque plane 57 soudée à l'extrémité inférieure de l'étai 31 et s'étendant généralement perpendiculairement à l'axe longitudinal de ce dernier.The mounting of the support roller has been detailed in FIGS. 5 and 6 50 at the lower end of the forestay 31. According to a characteristic advantageous of the invention, and as shown more particularly on Figure 6, the axis 55 of each support wheel 50 fitted to a stay 31 extends between two flanges 52 pivotally mounted on a support 53 extending lower forestay 31. A tube 54, not shown in FIG. 6 for reasons of clarity of the drawing, is reported externally on one of the flanges 52 to receive a flange tilting lever 52. The axle 55 is welded at its ends to the flanges 52. The latter revolve around an axis 56 passing through the support 53 while extending parallel to the axis 55. The support 53 is welded to a flat plate 58, itself bolted to a plate plane 57 welded to the lower end of the forestay 31 and extending generally perpendicular to the longitudinal axis of the latter.

    Les flasques 52 présentent sur leur contour deux bords 52a et 52b conformés pour venir en butée, lors du basculement des flasques 52 autour de l'axe 56, contre la plaque 58 afin de définir deux positions différentes pour la roulette d'appui 50, correspondant aux figures 3 et 4, et représentées en trait plein et en traits discontinus sur la figure 5. Plus précisément, dans la position de la figure 3, les flasques 52 viennent en butée contre la plaque 58 par leurs bords 52a et, dans la position de la figure 3, après basculement de 90° environ de ces derniers dans le sens horaire sur la figure 2, par leurs bords 52b, pour redresser le panneau B2. The flanges 52 have on their contour two edges 52a and 52b shaped to come into abutment, during the tilting of the flanges 52 around axis 56, against plate 58 in order to define two different positions for the support roller 50, corresponding to FIGS. 3 and 4, and shown in line solid and in broken lines in Figure 5. More specifically, in the position of Figure 3, the flanges 52 abut against the plate 58 by their edges 52a and, in the position of FIG. 3, after tilting of About 90 ° of these clockwise in Figure 2, by their edges 52b, to straighten the panel B2.

    Chaque bras 33 comporte comme représenté sur la figure 6 deux branches articulées par des pattes 34 sur un axe 38. Cet axe 38 traverse l'étai 31 perpendiculairement à son axe longitudinal, et s'étend parallèlement aux axes 55 et 56. Les branches 33 divergent en éloignement de l'axe 38 avec un écartement donné par des entretoises 39 s'étendant parallèlement à cet axe.Each arm 33 comprises, as shown in FIG. 6, two branches articulated by legs 34 on an axis 38. This axis 38 crosses the forestay 31 perpendicular to its longitudinal axis, and extends parallel to the axes 55 and 56. The branches 33 diverge away from the axis 38 with a spacing given by spacers 39 extending parallel to this axis.

    La mise en oeuvre du dispositif de coffrage selon la présente invention va maintenant être décrite en référence aux figures 7A à 7H.The implementation of the formwork device according to this The invention will now be described with reference to FIGS. 7A to 7H.

    Le dispositif de coffrage est déposé par tout moyen de levage approprié sur la dalle d'appui D, le panneau B1 étant posé directement dans sa position de coffrage représentée sur la figure 7A, dans laquelle il définit une face du mur à construire. De préférence, conformément à une caractéristique avantageuse de l'invention, le dispositif de coffrage est muni de crochets de levage L1 et L2 agencés sur les panneaux B1 et B2 de manière à ce que lorsque le dispositif de coffrage est déposé sur la dalle d'appui D, le panneau B1 touche le sol en premier.The formwork device is removed by any lifting means suitable for support slab D, panel B1 being placed directly in its formwork position shown in Figure 7A, in which it defines a opposite the wall to be built. Preferably, in accordance with a advantageous characteristic of the invention, the formwork device is provided lifting hooks L1 and L2 arranged on the panels B1 and B2 so as to that when the formwork device is placed on the support slab D, the panel B1 hits the ground first.

    Le panneau B1 repose par son arête inférieure A1 et par les patins 22 des structures d'appui arrière 20 sur la dalle d'appui D, sa face coffrante étant verticale. Le panneau B2 repose sur la dalle d'appui par l'intermédiaire des roulettes principales 40 et des roulettes d'appui 50 en position de roulage, l'arête inférieure A2 étant décollée de la dalle d'appui D, d'une distance de 1,5 cm environ dans l'exemple décrit. Les flasques 52 sont dans leur position de roulage représentée sur la figure 3, c'est-à-dire avec les bords 52a venant en butée contre la plaque 58. Dans cette position écartée des panneaux B1 et B2 représentée sur la figure 7A, on procède de façon connue en soi au nettoyage des panneaux, à leur graissage, à la mise en place d'armatures R sur des fers en attente ou d'incorporations diverses.The panel B1 rests by its lower edge A1 and by the pads 22 of the rear support structures 20 on the support slab D, its formwork face being vertical. Panel B2 rests on the support slab via main rollers 40 and support rollers 50 in the rolling position, the lower edge A2 being detached from the support slab D, by a distance of 1.5 about cm in the example described. The flanges 52 are in their position of rolling shown in Figure 3, that is to say with the edges 52a coming abutment against plate 58. In this position away from panels B1 and B2 represented in FIG. 7A, cleaning is carried out in a manner known per se panels, their lubrication, the installation of R reinforcements on irons pending or various incorporations.

    Ensuite, comme représenté sur la figure 7B, le panneau B2 est rapproché du panneau B1, les compas 10 maintenant le panneau B2 incliné lors du roulage. Le déplacement du panneau B2 s'effectue de préférence au moyen d'une clé à cliquet venant en prise avec l'axe 41 d'une roulette principale 40.Then, as shown in Figure 7B, the panel B2 is near panel B1, compasses 10 holding panel B2 tilted while driving. The displacement of panel B2 is preferably carried out at by means of a ratchet engaging the axis 41 of a caster main 40.

    Au terme du roulage, comme représenté sur la figure 7C, le panneau B2 est redressé par basculement des flasques 52, au moyen d'un levier engagé dans le tube 54, jusqu'à butée des bords 52b de ces derniers contre la plaque 58. Ce redressement est possible grâce au jeu des articulations des bielles 13 et 14 des compas 10 en position rapprochée des panneaux. L'arête inférieure A2 du panneau B2 vient reposer sur le sol tandis que la roulette principale 40 décolle légèrement de la dalle d'appui D. Les deux panneaux sont avantageusement maintenus de façon connue en soi, pour le coulage de béton, par des tiges filetées F représentées sur la figure 7D, ces tiges permettant d'ajuster avec précision le parallélisme des faces coffrantes.At the end of driving, as shown in FIG. 7C, the panel B2 is straightened by tilting the flanges 52, by means of a lever engaged in the tube 54, until the edges 52b of the latter stop against plate 58. This straightening is possible thanks to the play of joints of the connecting rods 13 and 14 of the compasses 10 in the close position panels. The lower edge A2 of the panel B2 comes to rest on the ground while the main caster 40 takes off slightly from the support slab D. The two panels are advantageously held in a manner known per se, for pouring concrete, by threaded rods F shown in FIG. 7D, these rods allowing to precisely adjust the parallelism of the faces shuttering.

    Après la prise du béton, le dispositif de coffrage est démonté conformément à la figure 7E en inclinant légèrement les panneaux B1 et B2 vers l'arrière par le raccourcissement des étais 21 et 31 des structures d'appui arrière 20 et 30. Puis le panneau B2 est incliné par basculement des flasques 52 vers leur position de roulage représentée sur la figure 3, c'est-à-dire avec les bords 52a venant en butée contre la plaque 58.After setting the concrete, the formwork device is dismantled according to figure 7E by slightly tilting the panels B1 and B2 backwards by shortening the props 21 and 31 of the support structures rear 20 and 30. Then the panel B2 is inclined by tilting the flanges 52 towards their rolling position shown in FIG. 3, that is to say with the edges 52a abutting against the plate 58.

    Le dispositif de coffrage est ensuite enlevé comme montré sur la figure 7F, à l'aide de câbles de levage C passant au travers d'un écarteur E, pour être déplacé vers une nouvelle position de travail. Les câbles C sont écartés d'une distance supérieure à la distance entre les crochets de levage L1 et L2 des panneaux B1 et B2, de sorte que lorsque le dispositif de coffrage est soulevé, les panneaux B1 et B2 tendent, sous l'effet de leur propre poids, à s'éloigner l'un de l'autre, comme représenté sur la figure 7G. De préférence, l'écarteur E est choisi de manière à ce que l'écartement des panneaux B1 et B2 durant leur transport soit inférieur à l'écartement maximal permis par les compas 10.The formwork device is then removed as shown on the FIG. 7F, using lifting cables C passing through a spacer E, to be moved to a new working position. C cables are separated by a distance greater than the distance between the lifting hooks L1 and L2 of panels B1 and B2, so that when the formwork device is lifted, the panels B1 and B2 tend, under the effect of their own weight, to move away from each other, as shown in Figure 7G. Preferably, the spacer E is chosen so that the spacing of the panels B1 and B2 during their transport is less than the maximum spacing allowed by the compass 10.

    Le dispositif de coffrage peut être transporté avec les panneaux B1 et B2 dans une position proche de leur écartement maximum ou dans une position d'écartement intermédiaire entre la position d'écartement maximum et la position rapprochée. Le deuxième cas permet d'éviter des obstacles lors de la pose du dispositif de coffrage, l'écartement des panneaux étant ensuite corrigé, le cas échéant, par roulage du panneau B2.The formwork device can be transported with panels B1 and B2 in a position close to their maximum spacing or in a intermediate spacing position between the maximum spacing position and the close position. The second case avoids obstacles during the installation of the formwork device, the spacing of the panels then being corrected, if necessary, by rolling the panel B2.

    Claims (9)

    1. A shuttering device comprising two shuttering panels (B1, B2) connected together at the top by at least one linkage (10) suitable for stabilizing the panels (B1, B2) in a spaced-apart position that allows access to the space between the panels for operations prior to pouring, and in a close-together position for pouring concrete between the panels, one of the panels (B2) being wheeled with main wheels (40) enabling it to be moved between said positions by running on the wheels, the device being characterized in that said linkage (10) is designed to enable the wheeled panel (B2) to slope backwards before and while running on the wheels so as to ensure that the shuttering device is stable, and to enable said panel (B2) to be stood up once it has reached the close-together position.
    2. A shuttering device according to claim 1, characterized in that the linkage (10) is, for example, a commercially available compass linkage having hinges with sufficient slack in the close-together position of the panels to allow the wheeled panel (B2) to be stood up.
    3. A shuttering device according to claim 2, characterized in that the wheeled panel (B2) also has stabilizer wheels (50) that are further away from its bottom edge (A2) than are the main wheels (40), the center of gravity of the panel while it is in its sloping position then being vertically above a point lying between the axis of the main wheels (40) and the axis of the stabilizer wheels (50).
    4. A shuttering device according to claim 3, characterized in that the axle (55) of each stabilizer wheel (50) extends between cheeks (52) which are hinged to a support (53) secured to the panel (B2), the cheeks (52) being tiltable between a first floor-engaging position where they tend to hold the panel (B2) in its upright position, and a second floor-engaging position corresponding to the panel (B2) being in its sloping position.
    5. A shuttering device according to any one of claims 1 to 4, characterized in that the height of the axis (41) of the main wheels (40) above the bottom edge (A2) of the panel (B2) to which they are fitted, is adjustable.
    6. A shuttering device according to any one of claims 1 to 5, characterized in that the main wheels (40) are suitable for being rotated by means of a spanner engaging their axles (41).
    7. A shuttering device according to any one of claims 1 to 6, characterized in that each of the panels (B1, B2) is fitted with lifting hooks disposed in such a manner that the panel (B2) fitted with the wheels touches down second when the shuttering device, suspended from a hoist, is put down on the floor, said panel then sloping backwards.
    8. A method of making a concrete wall comprising the steps consisting in:
      a) using a hoist to put into place a shuttering device having two shuttering panels (B1, B2), one of the panels (B1) being positioned so as to define one of the main faces of the wall to be built, the two panels (B1, B2) initially being in a spaced-apart position giving access to the space between them to perform operations prior to shuttering, e.g. cleaning, greasing, and installing reinforcement or various inserts, the other panel (B2) being wheeled, and the stability of the shuttering device being ensured by the linkage(s) (10);
      b) the wheeled panel (B2) is run towards the other panel to bring it into a position where it defines the other main face of the wall to be built;
      c) concrete is poured between the panels; and
      d) unshuttering is performed;
         the method being characterized in that said shuttering device is in accordance with any preceding claim, and in that before and while running the wheeled panel is sloping and it is tilted upright after it has finished running.
    9. A method according to claim 8, characterized in that the shuttering device is put down by means of cables organized in such a manner that the spacing between the panels prior to the panel fitted with floor-engaging wheels is less than their maximum spacing, with the spacing between the panels then being corrected, where appropriate.
    EP95400570A 1994-03-17 1995-03-15 Shuttering arrangement and method of application Expired - Lifetime EP0672806B1 (en)

    Applications Claiming Priority (2)

    Application Number Priority Date Filing Date Title
    FR9403130A FR2717522B1 (en) 1994-03-17 1994-03-17 Formwork device and method of implementing this device.
    FR9403130 1994-03-17

    Publications (2)

    Publication Number Publication Date
    EP0672806A1 EP0672806A1 (en) 1995-09-20
    EP0672806B1 true EP0672806B1 (en) 1998-05-27

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    Family Applications (1)

    Application Number Title Priority Date Filing Date
    EP95400570A Expired - Lifetime EP0672806B1 (en) 1994-03-17 1995-03-15 Shuttering arrangement and method of application

    Country Status (4)

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    EP (1) EP0672806B1 (en)
    DE (1) DE69502649T2 (en)
    ES (1) ES2116690T3 (en)
    FR (1) FR2717522B1 (en)

    Families Citing this family (7)

    * Cited by examiner, † Cited by third party
    Publication number Priority date Publication date Assignee Title
    FR2768453B1 (en) * 1997-09-12 1999-12-03 Grp D Equipements De Materiel DEVICE FOR SETTING UP A TORQUE OF OPPOSITE BANCHES
    FR2914000B3 (en) * 2007-03-19 2009-02-27 Hussor Soc Par Actions Simplif DEVICE FOR STABILIZING AND HANDLING BANKS
    FR3034444B1 (en) * 2015-04-03 2018-03-02 Sateco FORMWORK BANK WITH RAPID DECOFFRAGE
    FR3080128B1 (en) * 2018-04-17 2021-05-28 Sateco Sa FORMWORK BENCH WITH AT LEAST ONE UNDERGROUND
    FR3080395B1 (en) * 2018-04-19 2020-05-01 Hussor TROLLEY FOR MOVING A BENCH
    FR3088665B1 (en) * 2018-11-20 2021-06-25 Outinord St Amand Panel having a movable formwork face relative to the ground support means and use for the lateral assembly of formwork
    FR3114335B1 (en) 2020-09-22 2022-11-11 Anoxa ELEMENT OF GUARDRAILS, IN PARTICULAR OF PANEL GUARDRAILS

    Family Cites Families (8)

    * Cited by examiner, † Cited by third party
    Publication number Priority date Publication date Assignee Title
    FR1582901A (en) * 1968-07-04 1969-10-10
    FR2133220A5 (en) * 1971-04-08 1972-11-24 Outinord Sa Ets
    US3743232A (en) * 1971-07-12 1973-07-03 Bowerman Bros Inc Concrete form
    FR2283283A1 (en) * 1974-08-29 1976-03-26 Outinord Sa Ets Device for moving tunnel shutter panel - has anchored traction cable wound by winch on panel
    FR2459860A1 (en) * 1979-06-22 1981-01-16 Norpac Sa Movable shutter for casting doors - includes rollers which run along H=section track perpendicular to shutter and are locked in place relative to fixed shutter
    FR2472068A1 (en) * 1979-12-19 1981-06-26 Outinord St Amand Shutters for moulding concrete - are prevented from falling over using jointed arms which lock into position
    FR2609745A1 (en) * 1987-01-19 1988-07-22 Outinord St Amand Handling device for shuttering panels intended for the formwork of concrete shells
    FR2618829B1 (en) * 1987-07-27 1992-08-14 Outinord St Amand IMPROVEMENT IN SECURITY DEVICES AVOIDING THE TIPPING OF A PAIR OF BANCHES

    Also Published As

    Publication number Publication date
    DE69502649D1 (en) 1998-07-02
    DE69502649T2 (en) 1998-12-24
    FR2717522B1 (en) 1996-06-07
    EP0672806A1 (en) 1995-09-20
    FR2717522A1 (en) 1995-09-22
    ES2116690T3 (en) 1998-07-16

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