EP0672806B1 - Dispositif de coffrage et procédé de mise en oeuvre de ce dispositif - Google Patents
Dispositif de coffrage et procédé de mise en oeuvre de ce dispositif Download PDFInfo
- 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
- Authority
- 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
Links
- 238000009416 shuttering Methods 0.000 title claims description 18
- 238000000034 method Methods 0.000 title claims 3
- 238000004140 cleaning Methods 0.000 claims description 4
- 230000002787 reinforcement Effects 0.000 claims description 4
- 230000005484 gravity Effects 0.000 claims description 3
- 230000000087 stabilizing effect Effects 0.000 claims description 3
- 238000004519 manufacturing process Methods 0.000 claims description 2
- 239000003381 stabilizer Substances 0.000 claims 3
- 238000009415 formwork Methods 0.000 description 40
- 238000005096 rolling process Methods 0.000 description 8
- 238000010348 incorporation Methods 0.000 description 4
- 238000009434 installation Methods 0.000 description 3
- 238000005461 lubrication Methods 0.000 description 3
- 125000006850 spacer group Chemical group 0.000 description 3
- 238000005266 casting Methods 0.000 description 2
- 241001415961 Gaviidae Species 0.000 description 1
- 241001080024 Telles Species 0.000 description 1
- 241000897276 Termes Species 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 235000000396 iron Nutrition 0.000 description 1
- 230000008520 organization Effects 0.000 description 1
- 238000004904 shortening Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
Images
Classifications
-
- 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.
Landscapes
- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Mechanical Engineering (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Forms Removed On Construction Sites Or Auxiliary Members Thereof (AREA)
Description
- 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.
Claims (9)
- Dispositif de coffrage comprenant deux panneaux de coffrage (B1, B2) reliés supérieurement par au moins une structure articulée (10) apte à stabiliser les panneaux (B1, B2) 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 (B2) des panneaux étant muni de roulettes principales (40) permettant son déplacement par roulage entre lesdites positions, caractérisé en ce que ladite structure (10) est conçue pour permettre une inclinaison vers l'arrière du panneau (B2) muni de roulettes avant et pendant le roulage de façon à assurer la stabilité du dispositif de coffrage, et pour permettre le redressement de ce panneau (B2) lorsqu'il est arrivé en position rapprochée.
- dispositif de coffrage selon la revendication 1, caractérisé en ce que la structure articulée (10) est, par exemple, un compas du commerce dont les articulations présentent, en position rapprochée des panneaux, un jeu suffisant permettant le redressement du panneau (B2) équipé des roulettes principales (40).
- Dispositif de coffrage selon la revendication 2, caractérisé en ce que le panneau (B2) équipé des roulettes principales (40) présente en outre des roulettes d'appui (50) plus éloignées que les roulettes principales (40) de son bord inférieur (A2), la verticale du centre de gravité de ce panneau lorsqu'il est en position inclinée passant entre les axes des roulettes principales (40) et des roulettes d'appui (50).
- Dispositif de coffrage selon la revendication 3, caractérisé en ce que l'axe (55) de chaque roulette d'appui (50) s'étend entre des flasques (52) articulés sur un support (53) solidaire du panneau (B2), les flasques (52) étant basculables entre une première position d'appui sur le sol tendant à maintenir le panneau (B2)en position redressée et une deuxième position d'appui sur le sol correspondant à la position inclinée du panneau (B2).
- Dispositif de coffrage selon l'une des revendications 1 à 4, caractérisé en ce que la hauteur de l'axe (41) des roulettes principales (40), mesurée par rapport au bord inférieur (A2) du panneau (B2) qu'elles équipent, est réglable.
- Dispositif de coffrage selon l'une des revendications 1 à 5, caractérisé en ce que les roulettes principales (40) sont aptes à être entraínées en rotation au moyen d'une clé venant en prise avec leur axe (41).
- Dispositif de coffrage selon l'une des revendications 1 à 6, caractérisé en ce que les panneaux (B1, B2) sont équipés chacun de crochets de levage agencés de manière à ce que le panneau (B2) équipé des roulettes touche le sol en second lorsque le dispositif de coffrage, suspendu à un dispositif de levage, est déposé sur le sol, ce panneau étant alors incliné vers l'arrière.
- 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 comprenant deux panneaux de coffrages (B1,B2), l'un (B1) des panneaux étant positionné de manière à définir une face principale du mur à construire, les deux panneaux (B1, B2) 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 (B2), étant équipé de roulettes, la stabilité du dispositif de coffrage étant assurée par la ou les structures articulées (10),b) rapprocher par roulage le panneau (B2) 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,
- Procédé selon la revendication 8, caractérisé en ce que le dispositif de coffrage est déposé au moyen de câbles agencés de manière à ce que les panneaux présentent, avant que le panneau, équipé de roulettes, ne touche le sol, un écartement inférieur à leur écartement maximal, l'écartement des panneaux étant ensuite, le cas échéant, corrigé.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR9403130A FR2717522B1 (fr) | 1994-03-17 | 1994-03-17 | Dispositif de coffrage et procédé de mise en Óoeuvre de ce dispositif. |
FR9403130 | 1994-03-17 |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0672806A1 EP0672806A1 (fr) | 1995-09-20 |
EP0672806B1 true EP0672806B1 (fr) | 1998-05-27 |
Family
ID=9461147
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP95400570A Expired - Lifetime EP0672806B1 (fr) | 1994-03-17 | 1995-03-15 | Dispositif de coffrage et procédé de mise en oeuvre de ce dispositif |
Country Status (4)
Country | Link |
---|---|
EP (1) | EP0672806B1 (fr) |
DE (1) | DE69502649T2 (fr) |
ES (1) | ES2116690T3 (fr) |
FR (1) | FR2717522B1 (fr) |
Families Citing this family (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2768453B1 (fr) * | 1997-09-12 | 1999-12-03 | Grp D Equipements De Materiel | Dispositif pour mettre en place un couple de banches en vis a vis |
FR2914000B3 (fr) * | 2007-03-19 | 2009-02-27 | Hussor Soc Par Actions Simplif | Dispositif de stabilisation et de manutention de banches |
FR3034444B1 (fr) * | 2015-04-03 | 2018-03-02 | Sateco | Banche de coffrage a decoffrage rapide |
FR3080128B1 (fr) * | 2018-04-17 | 2021-05-28 | Sateco Sa | Banche de coffrage comportant au moins un organe de roulement |
FR3080395B1 (fr) * | 2018-04-19 | 2020-05-01 | Hussor | Chariot pour deplacement d'une banche |
FR3088665B1 (fr) * | 2018-11-20 | 2021-06-25 | Outinord St Amand | Banche ayant une face de coffrage mobile par rapport à des moyens d’appui au sol et utilisation pour l’assemblage latéral de banches |
FR3114335B1 (fr) | 2020-09-22 | 2022-11-11 | Anoxa | Element de garde-corps, en particulier de garde-corps de banche |
Family Cites Families (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR1582901A (fr) * | 1968-07-04 | 1969-10-10 | ||
FR2133220A5 (fr) * | 1971-04-08 | 1972-11-24 | Outinord Sa Ets | |
US3743232A (en) * | 1971-07-12 | 1973-07-03 | Bowerman Bros Inc | Concrete form |
FR2283283A1 (fr) * | 1974-08-29 | 1976-03-26 | Outinord Sa Ets | Dispositif pour deplacer horizontalement des coffrages |
FR2459860A1 (fr) * | 1979-06-22 | 1981-01-16 | Norpac Sa | Perfectionnements aux banches |
FR2472068A1 (fr) * | 1979-12-19 | 1981-06-26 | Outinord St Amand | Dispositif de securite evitant le basculement d'une paire de banches posees sur une surface horizontale |
FR2609745A1 (fr) * | 1987-01-19 | 1988-07-22 | Outinord St Amand | Dispositif de manutention pour branches destinees au coffrage de voiles de beton |
FR2618829B1 (fr) * | 1987-07-27 | 1992-08-14 | Outinord St Amand | Perfectionnement aux dispositifs de securite evitant le basculement d'une paire de banches |
-
1994
- 1994-03-17 FR FR9403130A patent/FR2717522B1/fr not_active Expired - Lifetime
-
1995
- 1995-03-15 DE DE69502649T patent/DE69502649T2/de not_active Expired - Lifetime
- 1995-03-15 ES ES95400570T patent/ES2116690T3/es not_active Expired - Lifetime
- 1995-03-15 EP EP95400570A patent/EP0672806B1/fr not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
DE69502649D1 (de) | 1998-07-02 |
EP0672806A1 (fr) | 1995-09-20 |
FR2717522A1 (fr) | 1995-09-22 |
ES2116690T3 (es) | 1998-07-16 |
DE69502649T2 (de) | 1998-12-24 |
FR2717522B1 (fr) | 1996-06-07 |
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