EP3124719B1 - Formwork retaining device for building element, building element having such device and shuttering method using said device - Google Patents
Formwork retaining device for building element, building element having such device and shuttering method using said device Download PDFInfo
- Publication number
- EP3124719B1 EP3124719B1 EP16177072.2A EP16177072A EP3124719B1 EP 3124719 B1 EP3124719 B1 EP 3124719B1 EP 16177072 A EP16177072 A EP 16177072A EP 3124719 B1 EP3124719 B1 EP 3124719B1
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- EP
- European Patent Office
- Prior art keywords
- formwork
- retaining device
- guide support
- building element
- wall
- 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.)
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Classifications
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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
- 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
- E04G11/08—Forms, which are completely dismantled after setting of the concrete and re-built for next pouring
- E04G11/085—End form panels for walls
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B2/00—Walls, e.g. partitions, for buildings; Wall construction with regard to insulation; Connections specially adapted to walls
- E04B2/84—Walls made by casting, pouring, or tamping in situ
- E04B2/86—Walls made by casting, pouring, or tamping in situ made in permanent forms
- E04B2/8605—Walls made by casting, pouring, or tamping in situ made in permanent forms without spacers
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B2/00—Walls, e.g. partitions, for buildings; Wall construction with regard to insulation; Connections specially adapted to walls
- E04B2/84—Walls made by casting, pouring, or tamping in situ
- E04B2/86—Walls made by casting, pouring, or tamping in situ made in permanent forms
- E04B2002/8676—Wall end details
Definitions
- the present invention relates to a formwork holding device for holding at least one shuttering panel arranged to close at least partially a recess provided in a construction element, said recess being between two opposite faces of said building element each delimited by a slice, said shuttering panel being at least partially supported on said slices.
- the present invention also relates to a construction element and a formwork method.
- a plurality of integral form walls are used which are adjacent two by two by their respective lateral ends.
- a plank usually made of wood which is arranged along the lateral end of the integrated shuttering wall so as to close the lateral end.
- the formwork shutoff board is fixed to the formwork wall integrated on site by fixing means.
- the formwork board is often attached to the integrated formwork wall by means of pegs distributed along the lateral ends of the walls of the integrated formwork wall.
- a formwork to form solid walls comprises two shuttering panels reinforced with vertical wooden beams, the panels being parallel to each other and spaced apart from one another, and an end form panel disposed transversely in the space between the two shuttering panels.
- This document also describes a device for holding the end-form panel and adjusting its position in said space, which comprises two support elements fixed to the outside of the two parallel formwork panels, and mounted to the right of a plate of support. These support elements are parallel to each other and distant from each other.
- the support plate carries a sleeve movable in translation on said plate and traversed by a threaded rod provided at one end with a sole on which is fixed the end form panel allowing its positioning between the two formwork panels .
- the formwork device described is poorly suited to walls with integrated formwork. Indeed, this formwork device requires several attachment points. It As a result, the walls of the integrated form wall are degraded by these multiple attachment points. In addition, such a formwork device is complex to implement.
- Document is also known DE 20 2013 003 444 U1 , a formwork holding device which has the features of the preamble of claim 1.
- it is also known to prefabricate at the factory an integrated form wall whose side end is closed beforehand by a concrete allowance. This solution has the disadvantage of having to substantially modify the manufacturing molds integrated formwork walls and increase manufacturing costs.
- the present invention aims to overcome these disadvantages by providing a formwork holding device adapted to various building elements and including standard integrated formwork walls, which is safe for operators, easy to attach to the building element without degrading it, which is easy to implement by a single operator, which is able to withstand the thrust forces of the concrete during casting, which avoids the degradation of the construction element and preserves its integrity, and which decreases considerably the implementation time and greatly improves the ergonomics of the site.
- the invention relates to a formwork holding device having the features of claim 1.
- the guide support may have a rectilinear shape and comprise at least one closed profiled tube at one of its ends.
- the formwork holding device may comprise an orientable pad mounted on said transverse portion of said movable member by a hinge to form a steerable abutment.
- the straight portion of the movable member may comprise a first profiled tube and said transverse portion may comprise a second profiled tube having a plurality of through holes defining several positions for said steerable shoe.
- the steerable pad may comprise a rectilinear section secured to a central yoke coupled to said transverse portion of the movable member by said hinge.
- the adjustment means comprise a threaded rod provided at one end with an adjusting end and coupled at the other end to a nut, said threaded rod being included within at least a part of the support of guide and the movable member, said threaded rod passing through the end of the guide support and said threaded rod being screwed into said nut.
- the fixing means comprise a clamping flange arranged to grip at least partially said guide support and to bear against the face of said construction element and a fastener arranged to pass through said clamping flange and to to be fixed in a receiving member that includes the face of said construction element.
- the invention also relates to a construction element of the type indicated in the preamble, characterized in that it comprises at least one formwork holding device described above arranged to maintain a formwork panel at least partially resting on the slices of said faces of said construction element and at least partially close said recess.
- the construction element comprises at least one bushing embedded in one of its faces, arranged to receive said fixing means of said formwork holding device.
- the present invention relates to a formwork holding device 1 which makes it possible to maintain a shuttering panel 3 on a construction element 2 and which is arranged to close at least partly a recess 21 provided in the construction element 2.
- formwork holding device 1 is particularly applicable to formwork shut-offs of construction elements, such as lateral ends 22 or openings (windows, doors) (not shown) of integrated formwork wall 2, or of prefabricated solid wall (not shown), for example.
- the present invention illustrates an exemplary embodiment, wherein the formwork holding device 1 is used to maintain a formwork panel 3, in the form of a board for example of wood, at one of the lateral ends 22 of a formwork wall integrated 2.
- this example of use is not limiting.
- the formwork holding device 1 as illustrated in the Figures 1 to 3 , comprises a guide support 10 intended to be fixed to the construction element 2 by fastening means 14, in which slides a movable element 11 comprising a bearing abutment 13, 112 arranged to be arranged against the shuttering panel 3.
- the movable member 11 and its abutment is in the form of a square.
- the guide support 10 comprises a straight section tube 101 and hollow, square section, closed at one of its ends by a plate 102 provided with a through hole, and open at its other end.
- the guide support 10 consists of a single piece.
- the movable element 11 comprises meanwhile a first profile tube 111 rectilinear, hollow and open at one of its ends which forms a rectilinear portion.
- the first profiled tube 111 also has a square section which is smaller than the section of the profiled tube 101 of the guide support 10, to allow the engagement and sliding of the movable member 11 in the guide support 10.
- the support of guide 10 and the movable member 11 are thus mounted telescopically.
- the movable member 11 can move in a rectilinear translation relative to the guide support 10 and the length L of the formwork holding device 1 is adjustable.
- the figure 3 illustrates the displacement of the movable member 11 relative to the guide support 10 between two positions to vary the length L of the formwork holding device 1 between the length L1 and the length L2.
- the length L of the formwork holding device 1 can vary between at least one passive position in which said abutment stop 13, 112 is not in abutment against the shuttering panel 3 and an active position in which said abutment stop 13, 112 bears against it.
- the threaded rod 122 is thus screwed into the nut 123.
- the rotation of the adjustment nozzle 122 in one direction or in the other causes the rectilinear translation of the movable member 11 along the guide support 10 by screwing or unscrewing the threaded rod 121 in the nut 123.
- These adjustment means 12 thus make it possible to control the movement of the movable member 11 with respect to the guide support 10.
- the adjustment means 12 make it possible to tighten the bearing stop 13, 112 of the mobile element 11 against the shuttering panel 3.
- Pou r do this simply turn the adjusting end piece 122 to bring the abutment abutment against the shuttering panel 3.
- the movable element 11 in the form of a square has a transverse portion 112 disposed at right angles to the rectilinear portion 111, as illustrated by the Figures 1 to 3 .
- the transverse portion is in the form of a second profiled tube 112 rectilinear, hollow or not, of square section, secured to the first profiled tube 111 by welding or any similar method.
- This transverse portion is intended to be in direct abutment against the formwork panel 3 or via a steerable pad 13 when the formwork holding device 1 is in the active position.
- the profiled tube 112 has for this purpose a plurality of through holes 113 arranged to receive a hinge 133 of the steerable pad 13.
- the steerable pad 13 comprises a rectilinear section 131 and two transverse plates 132 protruding from each other each having a through hole 134 facing one another and forming a stirrup disposed in the center of the rectilinear profile 131.
- This stirrup spans the second profiled tube 112 to the right of a through hole 113 to which it is coupled by a pin 133 forming the articulation of the steerable pad 13.
- the plurality of holes 113 of the second profiled tube 112 makes it possible to vary the position of the steerable pad 13 as a function of the thickness of the elements of the 2.
- the rectilinear section 131 of the steerable pad 13 is disposed in the right angle delimited by the first profiled tube 111 and the second profiled tube 112.
- the steerable pad 13 is particularly useful when the end 22 to form the element construction 2 is not perpendicular to its walls 20 but is inclined or angled. This configuration is illustrated in particular in figure 5 and will be described later in the description.
- the formwork holding device 1 further comprises fastening means 14 comprising a clamping flange 142 arranged to grip at least part of the guide support 10 and to be fastened to the construction element 2 by at least one fastener member. 141.
- the clamping flange 142 is formed of an L-shaped plate, and has a through hole 143 for receiving the fastener 141, which is a screw.
- the fixing member 141 is intended to be screwed into a socket (not shown) which is provided beforehand with the construction element 2.
- the screw 141 forms a fixing member of the fastening means 14 and the sleeve forms a complementary receiving member. This choice of fixing member 141 and receiving member is however not limiting.
- the fastening means 14 have the particular feature of being completely removable and independent of the guide support 10 and the movable element 11. Indeed, said fastening means 14 are intended to bear on the guide support 10 on a single bearing surface and to be fixed to said construction element 2 in a single point of attachment. More particularly, the fastening means 14 are on the one hand intended to be directly fixed in the construction element 2 via the screw assembly 141 and sleeve and to be in temporary contact. with the face 201 of the construction element 2 via the curved portion of the plate 142, and secondly to be only bearing without direct connection against the guide support 10 of the formwork holding device 1 via the right part
- such fastening means 14 facilitate the fixing of the formwork holding device 1, since it is fixed on the construction element 2 at a single point. This results in ease of implementation on the site. In addition, it avoids degrading the integrity and aesthetics of the building element 2.
- the figures 4 and 5 illustrate a non-limiting example of a construction element 2 comprising a formwork holding device 1, as described above.
- the building element consists of a prefabricated wall with integrated formwork 2.
- this choice of construction element is not limiting and extends for example to the solid prefabricated wall having lateral recesses. to receive links, or any other similar element of construction.
- the integrated form wall 2 comprises two walls 20 parallel to each other and spaced from one another to form a recess 21.
- the walls 20 each comprise a face 201.
- the integrated form wall 2 is manufactured in the factory and shipped to the site.
- the recess 21 is provided to receive the casting material of the core, such as concrete, once the integrated form wall 2 is placed on the job site.
- the integrated form wall 2 has a free lateral end 22, on which is supported a formwork panel 3 maintained by two formwork holding devices 1 to close this lateral end 22 of the integrated form wall 2
- the formwork panel 3 thus makes it possible to ensure that the filling material of the core which is poured between the walls 20 does not flow out of these.
- the guide support 10 of the formwork holding device 1 is placed in abutment against the face 201 of one of the walls 20 of the integrated form wall 2.
- the guide support 10 and the rectilinear portion 111 of the movable element 11 are substantially parallel to the longitudinal direction of the integrated form wall 2.
- the transverse portion 112 of the movable member 11 is disposed opposite the lateral end 22 of the integrated form wall 2 and the shuttering panel 3.
- the steerable pad 13 is in turn resting against the shuttering panel 3 and forms an angle with the transverse portion 112 since the lateral end 22 and the shuttering panel 3 are at an angle. It is thus positioned automatically with respect to the casing end to exert a resistance force and maintain the shuttering panel 3 against the edges 221 of the lateral end 22 of the integrated shuttering wall 2 thanks to the adjustment means 12
- the shuttering holding device 1 is fixed to the integrated shuttering wall 2 by the fixing means 14. More particularly, the guiding support 10 is held against the wall 20 by the clamping flange 142 of the fastening means 14.
- the invention achieves the goals set, namely to provide a formwork holding device adapted to various building elements and including standard integrated formwork walls, which is safe for operators, which is easy to implement by a single operator, which is able to withstand the thrust forces of concrete during casting, which avoids the degradation of the construction element and preserves its integrity, and which significantly reduces the time of implementation and greatly improves the ergonomics of the site.
- the present invention is particularly applicable to concrete shuttering formwork including free end formwork or splay opening or sail head.
- the guide support 10 is fixed to the face 201 of one of the walls 20 of the construction element 2 which comprises a bushing (not shown) via the fastening means 14. More particularly, the fixing member 141 in the through hole 143 of the clamping flange 142 which is oriented so that the bent portion bears against the wall 20, and the fastener 141 is inserted into the socket without tightening. Then, the guide support 10 is placed in abutment on the screw 141 in the space between the wall 20 and the clamping flange 142. As a result, the fastening means 14 are supported on the one hand against the guide support 10 and secondly against the face 201 of the wall 20.
- the formwork panel 3 is then placed between the slices 221 of the lateral end 22 of the integrated form wall 2 and the adjustable shoe 13 of the movable member 10.
- the movable member 11 is moved in a rectilinear translation along said guide support 10 to vary the length L of the formwork holding device 1 by turning the adjusting end-piece 122 by a appropriate key, until the steerable pad 13 exerts a resistance force against the shuttering panel. Finally, it closes the adjustment nozzle 122 to lock this position.
- the formwork panel 3 is removed by performing the steps that are described in reverse.
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Description
La présente invention concerne un dispositif de maintien de coffrage pour maintenir au moins un panneau de coffrage agencé pour fermer au moins en partie un évidement prévu dans un élément de construction, ledit évidement étant compris entre deux faces opposées dudit élément de construction chacune délimitée par une tranche, ledit panneau de coffrage étant au moins partiellement en appui sur lesdites tranches.The present invention relates to a formwork holding device for holding at least one shuttering panel arranged to close at least partially a recess provided in a construction element, said recess being between two opposite faces of said building element each delimited by a slice, said shuttering panel being at least partially supported on said slices.
La présente invention concerne également un élément de construction et un procédé de coffrage.The present invention also relates to a construction element and a formwork method.
Un mur à coffrage intégré se présente usuellement sous la forme de deux parois appelées communément des peaux, sensiblement parallèles et maintenues à distance l'une de l'autre par des armatures de liaison. Un mur à coffrage intégré est un élément de construction préfabriqué en usine qui est destiné à être acheminé sur un chantier de construction. La distance ménagée entre les deux peaux, est destinée à recevoir un matériau pouvant être coulé en place sur le chantier, tel que du béton. Après durcissement, ce matériau de remplissage forme le noyau du mur à coffrage intégré. Les deux parois jouent ainsi le rôle de coffrage.An integrated form wall is usually in the form of two walls commonly called skins, substantially parallel and kept at a distance from each other by connecting armatures. An integrated formwork wall is a prefabricated factory building element that is intended to be routed to a construction site. The distance between the two skins, is intended to receive a material that can be cast in place on site, such as concrete. After hardening, this filling material forms the core of the integrated form wall. Both walls play the role of formwork.
La plupart du temps pour former une construction, on utilise une pluralité de murs à coffrage intégré qui sont adjacents deux à deux par leurs extrémités latérales respectives.Most often to form a construction, a plurality of integral form walls are used which are adjacent two by two by their respective lateral ends.
Pour former des angles, il est courant que les parois des murs à coffrage intégré adjacents soient décalées l'une par rapport à l'autre dans des plans parallèles. Dans ces deux cas, le coffrage continu du noyau est assuré. Toutefois et selon le type de construction, il est également fréquent que l'une des extrémités latérales d'un mur à coffrage intégré doive être laissée libre, c'est-à-dire qu'aucun autre élément de construction adjacent n'est présent dans la continuité de cette extrémité latérale. Il est par conséquent nécessaire de former un arrêt de coffrage à l'extrémité latérale avant de procéder au coulage du noyau.To form angles, it is common for the walls of adjacent integral form walls to be offset relative to each other in parallel planes. In both cases, the continuous formwork of the core is ensured. However, depending on the type of construction, it is also common for one of the lateral ends of an integrated formwork wall to be left free, ie no other adjacent structural element is present. in the continuity of this lateral end. It is therefore necessary to form a form stop at the lateral end before casting the core.
La plupart du temps pour former un tel arrêt de coffrage, on utilise une planche, généralement en bois, que l'on dispose le long de l'extrémité latérale du mur à coffrage intégré de sorte à fermer l'extrémité latérale. En général, l'on fixe la planche d'arrêt de coffrage au mur à coffrage intégré sur le chantier par des moyens de fixation. La planche de coffrage est souvent fixée au mur à coffrage intégré au moyen de chevilles réparties le long des extrémités latérales des parois du mur à coffrage intégré. Cette solution présente l'inconvénient de nécessiter au moins deux opérateurs pour tenir d'une part la planche d'arrêt de coffrage et d'autre part pour percer et cheviller les tranches des parois du mur à coffrage intégré. De plus, après coffrage, il est nécessaire de retirer les chevilles et de reboucher les trous. Il en résulte un temps de main d'oeuvre conséquent. En outre, le perçage des tranches et le décoffrage de la planche de coffrage par enlèvement des chevilles peuvent nuire à l'intégrité du mur en endommageant les extrémités latérales des parois présentant une épaisseur faible comparativement au diamètre des chevilles. La planche d'arrêt de coffrage est également souvent endommagée et est par conséquent difficilement réutilisable. De plus, ce système permet uniquement de coffrer une extrémité latérale de mur à coffrage intégré droite et non une extrémité latérale en biais.Most of the time to form such a shuttering stop, a plank, usually made of wood, is used which is arranged along the lateral end of the integrated shuttering wall so as to close the lateral end. In general, the formwork shutoff board is fixed to the formwork wall integrated on site by fixing means. The formwork board is often attached to the integrated formwork wall by means of pegs distributed along the lateral ends of the walls of the integrated formwork wall. This solution has the disadvantage of requiring at least two operators to hold on the one hand the formwork shutter board and secondly to drill and dice the slices of the walls of the integrated formwork wall. In addition, after formwork, it is necessary to remove the dowels and re-fill the holes. This results in a long labor time. In addition, slab piercing and formwork stripping by peel removal can adversely affect the integrity of the wall by damaging the lateral ends of the walls having a small thickness compared to the diameter of the pegs. The formwork shutter board is also often damaged and is therefore difficult to re-use. In addition, this system only allows to form a side end of wall integrated formwork right and not a lateral end at an angle.
Il est également connu de maintenir la planche d'arrêt de coffrage par des colliers de serrage mis en place au travers de trous pré percés dans la planche de coffrage et entourant une armature interne du noyau traversant de part en part le mur. Cette solution présente l'inconvénient d'être relativement complexe à mettre en place, puisqu'un alignement parfait entre chaque trou et l'armature correspondante est nécessaire. Le décoffrage est également fastidieux puisqu'il est nécessaire de couper les colliers de serrage qui dépassent de l'extrémité latérale du mur à coffrage intégré et de reboucher les trous.It is also known to maintain the shuttering shuttering board by means of clamps put in place through pre-drilled holes in the shuttering board and surrounding an internal frame of the core passing right through the wall. This solution has the disadvantage of being relatively complex to put in place, since Perfect alignment between each hole and the corresponding frame is necessary. The formwork is also tedious since it is necessary to cut the clamps protruding from the lateral end of the integrated formwork wall and to cover the holes.
Une autre possibilité connue de l'art antérieur consiste à fixer la planche d'arrêt de coffrage au mur à coffrage intégré lors de sa fabrication en usine. Dans ce cas, la planche de coffrage est équipée de moyens d'ancrage, de type clou, qui sont noyés dans les extrémités latérales des parois lors du coulage de celles-ci. Cette solution n'est pas optimale puisqu'elle n'est pas totalement sécurisée. En effet, des risques de coupure sont encourus par les opérateurs lorsque les moyens d'ancrage sont apparents lors du coulage ou du décoffrage. Des points de rouille peuvent également apparaître aux extrémités latérales des parois après décoffrage. De plus, ce système permet uniquement de coffrer une extrémité latérale de mur droite et non une extrémité latérale en biais. Le mur à coffrage intégré obtenu présente en outre l'inconvénient de ne pas être standard.Another known possibility of the prior art is to fix the formwork shutter board to the integrated formwork wall during its manufacture in the factory. In this case, the shuttering board is equipped with anchoring means, nail type, which are embedded in the lateral ends of the walls during casting thereof. This solution is not optimal since it is not totally secure. Indeed, cut risks are incurred by the operators when the anchoring means are apparent during casting or stripping. Rust spots may also appear at the lateral ends of the walls after stripping. In addition, this system only allows to form a lateral end of the right wall and not a lateral end at an angle. The integrated formwork wall obtained also has the disadvantage of not being standard.
On connaît en outre de la publication
La présente invention vise à pallier ces inconvénients en proposant un dispositif de maintien de coffrage adapté à divers éléments de construction et notamment des murs à coffrage intégré standard, qui soit sans danger pour les opérateurs, qui soit facile à fixer sur l'élément de construction sans le dégrader, qui soit facile à mettre en oeuvre par un unique opérateur, qui soit capable de résister à des efforts de poussée du béton lors du coulage, qui évite la dégradation de l'élément de construction et préserve son intégrité, et qui diminue considérablement le temps de mise en oeuvre et améliore grandement l'ergonomie du chantier.The present invention aims to overcome these disadvantages by providing a formwork holding device adapted to various building elements and including standard integrated formwork walls, which is safe for operators, easy to attach to the building element without degrading it, which is easy to implement by a single operator, which is able to withstand the thrust forces of the concrete during casting, which avoids the degradation of the construction element and preserves its integrity, and which decreases considerably the implementation time and greatly improves the ergonomics of the site.
Dans ce but, l'invention concerne un dispositif de maintien de coffrage ayant les caractéristiques de la revendication 1. De manière avantageuse, le support de guidage peut présenter une forme rectiligne et comporter au moins un tube profilé fermé à une de ses extrémités.For this purpose, the invention relates to a formwork holding device having the features of
De manière avantageuse, le dispositif de maintien de coffrage peut comporter un patin orientable monté sur ladite portion transverse dudit élément mobile par une articulation pour former une butée d'appui orientable.Advantageously, the formwork holding device may comprise an orientable pad mounted on said transverse portion of said movable member by a hinge to form a steerable abutment.
La portion rectiligne de l'élément mobile peut comporter un premier tube profilé et ladite portion transverse peut comporter un second tube profilé comportant une pluralité de trous traversants définissant plusieurs positions pour ledit patin orientable.The straight portion of the movable member may comprise a first profiled tube and said transverse portion may comprise a second profiled tube having a plurality of through holes defining several positions for said steerable shoe.
Le patin orientable peut comporter un profilé rectiligne solidaire d'un étrier central couplé à ladite portion transverse de l'élément mobile par ladite articulation.The steerable pad may comprise a rectilinear section secured to a central yoke coupled to said transverse portion of the movable member by said hinge.
De préférence, les moyens de réglage comportent une tige filetée munie à une extrémité d'un embout de réglage et couplée à l'autre extrémité à un écrou, ladite tige filetée étant comprise à l'intérieur d'une partie au moins du support de guidage et de l'élément mobile, ladite tige filetée traversant l'extrémité du support de guidage et ladite tige filetée étant vissée dans ledit écrou.Preferably, the adjustment means comprise a threaded rod provided at one end with an adjusting end and coupled at the other end to a nut, said threaded rod being included within at least a part of the support of guide and the movable member, said threaded rod passing through the end of the guide support and said threaded rod being screwed into said nut.
Lesdits moyens de fixation peuvent être agencés pour être en appui sur ledit support de guidage sur une unique surface d'appui et pour être fixés audit élément de construction en un unique point de fixation.Said fixing means can be arranged to bear on said guide support on a single support surface and to be fixed to said construction element in a single attachment point.
De manière avantageuse, les moyens de fixation comportent une bride de serrage agencée pour enserrer au moins en partie ledit support de guidage et pour être en appui contre la face dudit élément de construction et un organe de fixation agencé pour traverser ladite bride de serrage et pour être fixé dans un organe de réception que comporte la face dudit élément de construction.Advantageously, the fixing means comprise a clamping flange arranged to grip at least partially said guide support and to bear against the face of said construction element and a fastener arranged to pass through said clamping flange and to to be fixed in a receiving member that includes the face of said construction element.
De préférence, ledit organe de fixation est une vis et la bride de serrage est formée d'une plaque en forme de L comportant un trou traversant pour recevoir ladite vis, une partie droite pour être uniquement en appui sans liaison directe contre le support de guidage et une partie recourbée pour être en contact temporaire avec la face de l'élément de construction.Preferably, said fixing member is a screw and the clamping flange is formed of an L-shaped plate having a through hole for receiving said screw, a straight portion to be supported only without direct connection against the guide support and a bent portion to be in temporary contact with the face of the building element.
L'invention concerne également un élément de construction du genre indiqué en préambule, caractérisé en ce qu'il comporte au moins un dispositif de maintien de coffrage décrit ci-dessus agencé pour maintenir un panneau de coffrage au moins partiellement en appui sur les tranches desdites faces dudit élément de construction et fermer au moins en partie ledit évidement.The invention also relates to a construction element of the type indicated in the preamble, characterized in that it comprises at least one formwork holding device described above arranged to maintain a formwork panel at least partially resting on the slices of said faces of said construction element and at least partially close said recess.
De préférence, l'élément de construction comporte au moins une douille noyée dans une de ses faces, agencée pour recevoir lesdits moyens de fixation dudit dispositif de maintien de coffrage.Preferably, the construction element comprises at least one bushing embedded in one of its faces, arranged to receive said fixing means of said formwork holding device.
Selon une variante de réalisation préférée, l'élément de construction consiste en un mur à coffrage intégré comportant deux parois sensiblement parallèles et maintenues à distance l'une de l'autre pour former ledit évidement pouvant être rempli par un matériau de remplissage, au moins une paroi dudit mur à coffrage intégré (2) comportant ladite au moins une douille débouchant sur ladite face, ledit mur à coffrage intégré comportant au moins une extrémité latérale fermée au moins en partie par au moins un panneau de coffrage rapporté et maintenu par ladite butée d'appui dudit dispositif de maintien de coffrage, ledit dispositif de maintien de coffrage étant fixé sur ladite paroi dudit mur à coffrage intégré par lesdits moyens de fixation.According to a preferred embodiment, the construction element consists of an integrated form wall having two substantially parallel walls and kept at a distance from each other to form said recess which can be filled with a filling material, at least a wall of said integrated form wall (2) comprising said at least one socket opening on said face, said integrated form wall comprising at least one lateral end closed at least in part by at least one shuttering panel attached and held by said stop support of said formwork holding device, said formwork holding device being fixed on said wall of said formwork wall integrated by said fixing means.
L'invention concerne également un procédé de coffrage d'un élément de construction décrit ci-dessus utilisant le dispositif de maintien de coffrage décrit ci-dessus caractérisé en ce que :
- l'on fixe ledit dispositif de maintien de coffrage à l'élément de construction par l'intermédiaire des moyens de fixation en maintenant ladite butée d'appui à distance de l'évidement à coffrer dudit élément de construction,
- l'on dispose un panneau de coffrage entre ledit évidement dudit élément de construction et la butée d'appui dudit dispositif de maintien de coffrage, et
- l'on rapproche ladite butée d'appui dudit panneau de coffrage en déplaçant l'élément mobile du dispositif de maintien de coffrage de la position passive à la position active selon une translation rectiligne le long dudit support de guidage grâce auxdits moyens de réglage jusqu'à ce que la butée d'appui vienne en appui et exerce une force de résistance contre ledit panneau de coffrage.
- said formwork holding device is fixed to the construction element by means of the fastening means by maintaining said bearing stop away from the casing recess of said construction element,
- a formwork panel is provided between said recess of said construction element and the support abutment of said formwork holding device, and
- said bearing abutment is brought close to said formwork panel by moving the movable element of the formwork holding device from the passive position to the active position in rectilinear translation along said guide support by means of said adjustment means until the support abutment comes into abutment and exerts a resistance force against said formwork panel.
La présente invention et ses avantages apparaîtront mieux dans la description suivante d'un mode de réalisation donné à titre d'exemple non limitatif, en référence aux dessins annexés, dans lesquels:
- la
figure 1 représente une vue en perspective du dispositif de maintien de coffrage selon l'invention avec ses moyens de fixation, - la
figure 2 est une vue en perspective par transparence du dispositif de maintien de coffrage de lafigure 1 sans ses moyens de fixation, - la
figure 3 est une vue en perspective du dispositif de maintien de coffrage de lafigure 2 illustrant le déplacement de l'élément mobile entre deux positions, - la
figure 4 est une vue en perspective d'un mur à coffrage intégré muni de deux dispositifs de maintien de coffrage de lafigure 1 pour maintenir un coffrage en biais, et - la
figure 5 est une vue de dessus du mur à coffrage intégré de lafigure 4 .
- the
figure 1 represents a perspective view of the formwork holding device according to the invention with its fixing means, - the
figure 2 is a perspective view in transparency of the formwork holding device of thefigure 1 without its means of fixation, - the
figure 3 is a perspective view of the formwork holding device of thefigure 2 illustrating the displacement of the movable element between two positions, - the
figure 4 is a perspective view of an integrated formwork wall with two formwork holding devices of thefigure 1 to maintain a formwork at an angle, and - the
figure 5 is a top view of the integrated formwork wall of thefigure 4 .
En référence aux
Le dispositif de maintien de coffrage 1, tel qu'illustré dans les
Le support de guidage 10 comporte un tube profilé 101 rectiligne et creux, de section carrée, fermé à une de ses extrémités par une plaque 102 munie d'un trou traversant, et ouverte à son autre extrémité. Dans l'exemple illustré, le support de guidage 10 est constitué d'une seule pièce. L'élément mobile 11 comporte quant à lui un premier tube profilé 111 rectiligne, creux et ouvert à l'une de ses extrémités qui forme une portion rectiligne. Le premier tube profilé 111 comporte également une section carrée qui est inférieure à la section du tube profilé 101 du support de guidage 10, pour permettre l'emboitement et le coulissement de l'élément mobile 11 dans le support de guidage 10. Le support de guidage 10 et l'élément mobile 11 sont ainsi montés de manière télescopique. Il en résulte que l'élément mobile 11 peut se déplacer selon une translation rectiligne par rapport au support de guidage 10 et que la longueur L du dispositif de maintien de coffrage 1 est réglable. La
L'élément mobile 11 en forme d'équerre comporte une portion transverse 112 disposée à angle droit de la portion rectiligne 111, comme l'illustrent les
Le dispositif de maintien de coffrage 1 comporte en outre des moyens de fixation 14 comportant une bride de serrage 142 agencée pour enserrer au moins en partie le support de guidage 10 et pour être fixée à l'élément de construction 2 par au moins un organe de fixation 141. Dans l'exemple représenté, la bride de serrage 142 est formée d'une plaque en forme de L, et comporte un trou traversant 143 pour recevoir l'organe de fixation 141, qui est une vis. Cet exemple n'est bien entendu pas limitatif. En outre, l'organe de fixation 141 est destiné à être vissé dans une douille (non représentée) dont est muni au préalable l'élément de construction 2. La vis 141 forme un organe de fixation des moyens de fixation 14 et la douille forme un organe de réception complémentaire. Ce choix d'organe de fixation 141 et d'organe de réception n'est toutefois pas limitatif. Les moyens de fixation 14 ont la particularité d'être totalement amovibles et indépendants du support de guidage 10 et de l'élément mobile 11. En effet, lesdits moyens de fixation 14 sont destinés à être en appui sur le support de guidage 10 sur une unique surface d'appui et à être fixés audit élément de construction 2 en un unique point de fixation. Plus particulièrement, les moyens de fixation 14 sont d'une part prévus pour être directement fixés dans l'élément de construction 2 via l'ensemble vis 141 et douille et pour être en contact temporaire avec la face 201 de l'élément de construction 2 via la partie recourbée de la plaque 142, et d'autre part pour être uniquement en appui sans liaison directe contre le support de guidage 10 du dispositif de maintien de coffrage 1 via la partie droite de la plaque 142. Avantageusement, de tels moyens de fixation 14 permettent de faciliter la fixation du dispositif de maintien de coffrage 1, puisque celui-ci est fixé sur l'élément de construction 2 en un unique point. Il en résulte une aisance de mise en oeuvre sur le chantier. De plus, on évite ainsi de dégrader l'intégrité et l'esthétique de l'élément de construction 2.The
Les
Il ressort clairement de cette description que l'invention permet d'atteindre les buts fixés, à savoir proposer un dispositif de maintien de coffrage adapté à divers éléments de construction et notamment des murs à coffrage intégré standard, qui soit sans danger pour les opérateurs, qui soit facile à mettre en oeuvre par un unique opérateur, qui soit capable de résister à des efforts de poussée du béton lors du coulage, qui évite la dégradation de l'élément de construction et préserve son intégrité, et qui diminue considérablement le temps de mise en oeuvre et améliore grandement l'ergonomie du chantier.It is clear from this description that the invention achieves the goals set, namely to provide a formwork holding device adapted to various building elements and including standard integrated formwork walls, which is safe for operators, which is easy to implement by a single operator, which is able to withstand the thrust forces of concrete during casting, which avoids the degradation of the construction element and preserves its integrity, and which significantly reduces the time of implementation and greatly improves the ergonomics of the site.
La présente invention s'applique particulièrement au coffrage d'arrêt de béton notamment le coffrage d'about libre ou d'ébrasement d'ouvrant ou de tête de voile.The present invention is particularly applicable to concrete shuttering formwork including free end formwork or splay opening or sail head.
Le procédé de coffrage utilisant le dispositif de maintien de coffrage 1 précédemment décrit est à présent détaillé. L'on fixe le support de guidage 10 à la face 201 d'une des parois 20 de l'élément de construction 2 qui comporte une douille (non représentée) par l'intermédiaire des moyens de fixation 14. Plus particulièrement, on insère l'organe de fixation 141 dans le trou traversant 143 de la bride de serrage 142 qui est orientée de sorte que la partie recourbée soit en appui contre la paroi 20, et l'on insère l'organe de fixation 141 dans la douille sans serrer. Puis, l'on dispose le support de guidage 10 en appui sur la vis 141 dans l'espace ménagé entre la paroi 20 et la bride de serrage 142. Il en résulte que les moyens de fixation 14 sont en appui d'une part contre le support de guidage 10 et d'autre part contre la face 201 de la paroi 20. L'on dispose ensuite le panneau de coffrage 3 entre les tranches 221 de l'extrémité latérale 22 du mur à coffrage intégré 2 et le patin orientable 13 de l'élément mobile 10. L'on déplace l'élément mobile 11 selon une translation rectiligne le long dudit support de guidage 10 pour faire varier la longueur L du dispositif de maintien de coffrage 1 en tournant l'embout de réglage 122 par une clé appropriée, jusqu'à ce que le patin orientable 13 exerce une force de résistance contre le panneau de coffrage. Pour terminer, l'on serre l'embout de réglage 122 pour verrouiller cette position. Après coulage et séchage du noyau en béton, l'on démonte le panneau de coffrage 3 en effectuant les étapes qui viennent décrites à l'envers.The formwork method using the
Claims (13)
- Formwork retaining device (1) for retaining at least one shuttering panel (3) arranged to close at least partly a recess (21) provided in a building element (2), said recess (21) being comprised between two opposite sides (201) of said building element (2), which are each delimited by an edge (221), said shuttering panel (3) bearing at least partly on said edges (221), said formwork retaining device (1) comprising one single guide support (10) et and one single mobile element (11) coupled with said guide support (10) and comprising a bearing stop (13, 112) arranged to be, in active position, resting on said shuttering panel (3) and exert on it a resistance force, said formwork retaining device (1) moreover comprising adjustment means (12) arranged to allow controlling the displacement and the position of mobile element (11) with respect to said guide support (10) as well as the tightening of said bearing stop (13, 112) against said shuttering panel (3), said guide support (10) being arranged to be fastened onto one single of said sides (201) of said building element (2) by fastening means (14), said formwork retaining device (1) being characterized in that said guide support (10) and said mobile element (11) are assembled in a telescopic manner, to allow said mobile element (11) to slide in said guide support (10) to modify the length (L, L1, L2) of said formwork retaining device (1) between at least one passive position in which said bearing stop (13, 112) is not resting on said shuttering panel (3) and an active position in which said bearing stop is resting on it, and in that said mobile element (11) has the shape of a square and comprises a rectilinear section (111) and a transversal section (112) substantially perpendicular to said rectilinear section (111) and forming a fixed bearing stop transversal to said guide support (10).
- Formwork retaining device according to claim 1, characterized in that said guide support (10) has a rectilinear shape and comprises at least one profiled tube (101) closed at one of its ends (102).
- Formwork retaining device according to claim 1, characterized in that it comprises an adjustable shoe (13) mounted on said transversal section (112) of said mobile element (11) by means of a joint (133) to form an adjustable bearing stop.
- Formwork retaining device according to claim 3, characterized in that said rectilinear section of mobile element (11) comprises a first profiled tube (111) and said transversal section comprises a second profiled tube (112) comprising a plurality of through holes (113) defining several positions for said adjustable shoe (13).
- Formwork retaining device according to claim 4, characterized in that said adjustable shoe (13) comprises a rectilinear profile (131) integral with a central bracket (132) coupled with said transversal section (112) of mobile element (11) through said joint (133).
- Formwork retaining device according to claim 2, characterized in that said adjustment means (12) comprise a threaded rod (121) provided at one end with an adjusting end piece (122) and coupled at the other end with a nut (123), in that said threaded rod (121) is comprised inside of at least a part of guide support (10) and mobile element (11), in that said threaded rod (121) passes through end (102) of guide support (10) and in that said threaded rod (121) is screwed in said nut (123).
- Formwork retaining device according to claim 1, characterized in that said fastening means (14) are arranged to rest on said guide support (10) on one single bearing surface and to be fastened onto said building element (2) at one single fastening point.
- Formwork retaining device according to claim 1 or 7, characterized in that said fastening means (14) comprise a tightening clamp (142) arranged to enclose at least partly said guide support (10) and to rest on side (201) of said building element (2) and a fastening element (141) arranged to pass through said tightening clamp (142) and to be fastened in a receiving element included in side (201) of said building element (2).
- Formwork retaining device according to claim 8, characterized in that said fastening means (141) is a screw and in that tightening clamp (14) is made of a L-shaped plate comprising a though hole (143) to receive said screw, a straight section to only rest on said guide support (10) without direct connection and a bent section to be in temporary contact with side (201) of building element (2).
- Building element (2) comprising a recess (21) included between two opposite sides (201), each of sides (201) being delimited by an edge (221), characterized in that it comprises at least one formwork retaining device (1) according to any of claims 1 to 9, arranged to retain a shuttering panel (3) resting at least partly on edges (221) of said sides (201) of said building element (2) and close at least partly said recess (21).
- Building element according to claim 10, characterized in that it comprises at least one bush embedded in one of its sides (201), arranged to receive said fastening means (14) of said formwork retaining device (1).
- Building element according to claim 11, characterized in that it consists in a wall with integrated formwork (2) comprising two walls (20) substantially parallel and maintained at a distance from each other to form said recess (21) that can be filled with a filling material, at least one wall (20) of said wall with integrated formwork (2) comprising said at least one bush opening on said side (201), said wall with integrated formwork (2) comprising at least one side end (22) closed at least partly by at least one shuttering panel (3) attached and retained by said bearing stop (13, 112) of said formwork retaining device (1), said formwork retaining device (1) being fastened onto said wall (20) of said wall with integrated formwork (2) by said fastening means (14).
- Shuttering method for a building element (2) according to any of claims 10 to 12 using the formwork retaining device (1) according to any of claims 1 to 9, characterized in that:- one fastens said formwork retaining device (1) onto building element (2) through fastening means (14) by maintaining said bearing stop (131, 13) at a distance of recess (21) to be shuttered of said building element (2),- one arranges a shuttering panel (3) between said recess (21) of said building element (2) and said bearing stop (131, 13) of formwork retaining device (1), and- one brings said bearing stop (131, 13) close to said shuttering panel (3) by moving mobile element (11) of formwork retaining device (1) from the passive la position to the active position according to a rectilinear translation along said guide support (10) thanks to said adjustment means (12) until bearing stop (13, 112) rests on and exerts a resistance force against said shuttering panel (3).
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR1557312A FR3039576B1 (en) | 2015-07-30 | 2015-07-30 | FORMING HOLDING DEVICE FOR BUILDING ELEMENT, BUILDING ELEMENT PROVIDED WITH SAID DEVICE AND FORMWORKING METHOD USING SAID DEVICE |
Publications (2)
Publication Number | Publication Date |
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EP3124719A1 EP3124719A1 (en) | 2017-02-01 |
EP3124719B1 true EP3124719B1 (en) | 2018-03-21 |
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Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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EP16177072.2A Active EP3124719B1 (en) | 2015-07-30 | 2016-06-30 | Formwork retaining device for building element, building element having such device and shuttering method using said device |
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EP (1) | EP3124719B1 (en) |
FR (1) | FR3039576B1 (en) |
Families Citing this family (10)
Publication number | Priority date | Publication date | Assignee | Title |
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CN107447614B (en) * | 2017-07-31 | 2023-09-01 | 中国五冶集团有限公司 | Reserved point location die carrier for non-motor vehicle lane spliced road surface |
CN108412191B (en) * | 2018-04-03 | 2023-08-22 | 中铁十一局集团建筑安装工程有限公司 | Deformation joint double shear wall template assembling and disassembling device and method |
CN112392252A (en) * | 2019-08-19 | 2021-02-23 | 中电建建筑集团有限公司 | Shear wall end template reinforcing device and reinforcing method |
CN110984561A (en) * | 2019-10-24 | 2020-04-10 | 中国水利水电第十四工程局有限公司 | Cast-in-place reinforced concrete shear wall construction formwork end reinforcing apparatus |
CN112227711B (en) * | 2020-10-12 | 2022-01-04 | 厦门安科科技有限公司 | Multifunctional supporting device for building template |
CN112227712B (en) * | 2020-10-14 | 2022-07-19 | 山东清河建工有限责任公司 | Lateral supporting device for wall construction |
CN113503015A (en) * | 2021-08-10 | 2021-10-15 | 刘雪静 | Fixing structure for building template pouring and using method thereof |
CN114108874B (en) * | 2021-11-30 | 2023-08-15 | 成都航空职业技术学院 | Connecting device for assembled building of multi-angle wall body |
FR3136815B1 (en) | 2022-06-17 | 2024-05-31 | Dominique Vercruyce | CLAMP WITH RETRACTABLE END |
CN115405090B (en) * | 2022-08-12 | 2024-03-19 | 广东天凛高新科技有限公司 | High-sealing-quality cast-in-situ mold sealing device and application method thereof |
Family Cites Families (3)
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FR2615887B1 (en) * | 1987-05-27 | 1993-05-28 | Chiappalone Luigi | QUICK SETTING SYSTEM FOR TRIMMED WALL TRAPS FOR USE IN DIFFERENT WALL LENGTHS AND THICKNESSES |
CH677256A5 (en) * | 1988-05-05 | 1991-04-30 | A & B Amberg Geb | Formwork end section positioning apparatus - has horizontal cross plate connected by pins to end brackets and fitted with bearing for positioning screw |
DE202013003444U1 (en) * | 2013-04-12 | 2013-06-07 | Layher Bautechnik GmbH | Shuttering console Vario 15 Flex: - A galvanized steel scarfing aid for creating a variable ceiling edge shuttering with side protection. |
-
2015
- 2015-07-30 FR FR1557312A patent/FR3039576B1/en not_active Expired - Fee Related
-
2016
- 2016-06-30 EP EP16177072.2A patent/EP3124719B1/en active Active
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EP3124719A1 (en) | 2017-02-01 |
FR3039576A1 (en) | 2017-02-03 |
FR3039576B1 (en) | 2018-04-06 |
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