EP1832696B1 - Betonschalungselement und Verwendung für eine Beckenschalung - Google Patents

Betonschalungselement und Verwendung für eine Beckenschalung Download PDF

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Publication number
EP1832696B1
EP1832696B1 EP07103624.8A EP07103624A EP1832696B1 EP 1832696 B1 EP1832696 B1 EP 1832696B1 EP 07103624 A EP07103624 A EP 07103624A EP 1832696 B1 EP1832696 B1 EP 1832696B1
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Prior art keywords
formwork
concrete
elements
wall
panel
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EP07103624.8A
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English (en)
French (fr)
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EP1832696A1 (de
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Gilles Cousson
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Cofreco
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Cofreco
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    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04H—BUILDINGS OR LIKE STRUCTURES FOR PARTICULAR PURPOSES; SWIMMING OR SPLASH BATHS OR POOLS; MASTS; FENCING; TENTS OR CANOPIES, IN GENERAL
    • E04H4/00—Swimming or splash baths or pools
    • E04H4/0075—Swimming or splash baths or pools made of concrete
    • E04H4/0081—Swimming or splash baths or pools made of concrete with walls and floor cast in situ

Definitions

  • the invention relates to the field of concrete formwork elements and their uses for the formwork of a basin, such as for example a swimming pool.
  • This method has the disadvantage of consuming a lot of concrete and requires to redo the formwork to each basin.
  • the patent application FR 2,526,841 describes in particular a formwork device using a support consisting of metal frames that hold shuttering panels, while releasing the interior of the structure.
  • a set of one-piece concrete can be poured in a single operation, without holding rails in the concrete itself.
  • This document describes a formwork element having the features of the preamble of claim 1.
  • Another method consists in mounting, on the horizontal concrete slab, a blockwork wall made of a mixture of cement and sand.
  • a metal frame can be inserted and concrete can be introduced into the free spaces of the blocks.
  • Such a method has the disadvantage of not guaranteeing the tightness of the wall.
  • the concrete introduced does not fill all the interstices between the blocks. Concrete vibrating techniques exist but are not compatible with the mechanical strength of cement blocks.
  • the lack of tightness of the wall requires the installation of a plastic coating of the "liner" type. This coating requires first to make a patch on the walls of the block wall.
  • a swimming pool manufacturing process described in the page "http: //www.magiline.fr/solutions_techniques_piscine.php” consists of mounting a wall with prefabricated elements of lost formwork. It is possible to cast reinforced and vibrated concrete in these prefabricated elements. The disadvantage is that these prefabricated elements remain in the wall and are not reusable. In addition to the high cost of these prefabricated elements, this method has the disadvantage of making the pool manufacturer dependent on its source of prefabricated elements. In addition, these prefabricated elements may present a risk of infiltration of the subsoil and may prevent the recycling of construction.
  • the patent application FR 2 573 802 (Philippe BACH) describes a formwork for an enteric swimming pool. A box is attached to the upper edge of a prefabricated wall. This formwork is filled with concrete and is used for the manufacture of only one pool.
  • the invention provides a concrete formwork element and a use of concrete formwork elements that overcome the above drawbacks.
  • the invention for the manufacture of a pond wall to be buried, reduces the amount of concrete used for the wall while reducing the amount of material remaining in the basement. In particular, in the case of pools, the invention facilitates the connection of the top of the wall with the ground level.
  • the basin concrete form element of the invention comprises the features of claim 1.
  • the connecting section has a positioning face, provided with at least one groove parallel to the portion of the formwork surface where the profile is fixed, the groove forming a stop in a direction perpendicular to said portion of the form surface.
  • the main connecting section has a contact face, perpendicular to the portion of the formwork surface where the profile is fixed, the contact face being intended to come into contact with a corresponding contact face of a adjacent formwork element located below it.
  • the fact that the rear lateral recess is made by a given formwork element, and that it can be assembled laterally aligned with a formwork element located beneath it makes it possible to keep both a good regularity of the rear lateral recess which is independent of the mason that runs the wall, and that one also keeps a modularity of assembly potentially identical for all the elements of formwork, located one on top of the others or one beside the other. This saves assembly time formwork sections, while obtaining advantageous forms of walls.
  • the formwork element comprises ribs for mechanical reinforcement of the formwork plate.
  • Two formwork elements are arranged, vis-à-vis, on both sides of the wall. At least one form element is connected at the periphery of its formwork surface to another formwork element.
  • the formwork elements are dismantled after the setting of the concrete. It is conceivable that such use, by providing the formwork elements on both sides of the wall to be made, although the wall is intended to be buried, allows both to save concrete and not to leave any material other than permanent concrete in the soil.
  • An advantageous use for the realization of a swimming pool whose edge is flush with the ground is a use in which the coping is intended to receive a tessellating and has a rim of curb wider than the wall and resting on the formwork element and in which the wall and the edge of the lip are poured together with concrete.
  • the formwork element contributes directly to the shape of the curb and reduces the amount of concrete needed to build the wall under the curb.
  • a concrete formwork element for the realization of a basin is a use in which two adjacent formwork elements are assembled by clamping means provided with free stops. It is conceivable that in this use, the free stops of the clamping means can maintain the formwork elements despite a vibrating phase of the concrete. This allows both better sealing and better mechanical resistance to seismic risks, without the need for additional concrete.
  • the manner in which the formwork elements are interconnected is compatible with recovery of the formwork elements after the concrete vibrating.
  • two adjacent formwork elements are aligned by taking support on grooves of two positioning faces of two connecting sections of the two formwork elements, positioning laterally opposite the two positioning faces and tightening the two sections one against the other until the contact between two contact faces of said profiles.
  • a first formwork panel is assembled by aligning a plurality of formwork elements so that the formwork surfaces of each formwork element are on the same face of the formwork panel; a second formwork panel is assembled; the two shuttering panels are kept at a distance and facing each other; concrete is poured between the two formwork panels; the formwork elements are dismantled to release the concrete wall and recover said formwork elements.
  • the maintenance, relative to each other, of the two formwork panels uses axially rigid tubular devices having an adjustable radial flexibility and in which the concrete is poured when the radial flexibility of the devices is relatively steeper and the radial flexibility of said tubular devices is modified to remove them from the rigid concrete.
  • the invention also relates to a use for producing swimming pool walls rising vertically above a concrete slab, in which a plurality of heels are placed on the slab, the lower parts of the slabs are maintained.
  • first and second formwork flanges resting on opposite ends of the heels by means of abutment flanges external to the space intended to receive the concrete, the first part of the formwork is maintained vertically by means of crutches located in the interior of the swimming pool, and maintains the relative position of the upper parts of the first and second formwork sections by spacers not passing through the space for receiving the concrete.
  • a first panel of formwork 1 and a second panel of formwork 2 are arranged on either side of a space 3 intended to receive a concrete pour for the manufacture of a wall 4 of a basin such as a pool 5 visible in figure 2 .
  • the first formwork panel 1 has a substantially flat formwork face 6 facing the space 3.
  • the formwork panel 1 comprises a formwork element 7 and a formwork element 8 cut in the figure.
  • the formwork panel 2 comprises, from the top to the bottom of the figure 1 , a shuttering element 9 having a lateral recess 10, a shuttering element 11 and a shuttering element 12 symmetrical to the shuttering element 8.
  • the shuttering elements 7, 8, 11 and 12 each comprise a shuttering plate 13 rectangular and flat shape visible in section on the figure 1 .
  • Each shuttering plate 13 has a form surface 13a facing the space 3 and a rear surface 13b opposite the form surface 13a.
  • the shuttering plate 13 is surrounded by a frame 14 traversing its periphery.
  • the frame 14 consists of a profile 15 rigidly fixed to the shuttering plate 13.
  • the profile 15 has a substantially rectangular cross-section 16 extending perpendicularly towards the rear of the shuttering plate 13.
  • the profile 15 and the plate 13 can be welded steel one on the other. It is also possible to have sections 15 and plates 13 of aluminum alloy formwork fixed for example by screws with a locking means so as to withstand vibrations.
  • the cross section 16 of the section 15 has a contact face 17, located towards the outside of the frame 14, and perpendicular to the form surface 13a.
  • the cross section 16 also has a positioning face 18 located towards the inside of the frame 14.
  • the positioning face 18 comprises two female triangular grooves 19 and 19a, parallel to the shuttering plate 13 and traversing the entire interior of the frame 14.
  • a clamping and positioning tool 20 comprises two jaws 21 each provided with two male triangular shapes 22 and 22a intended to cooperate with the grooves 19 and 19a of the positioning face 18 of the two adjacent sections.
  • the two jaws 21 are articulated around an axis of rotation 23.
  • the triangular shapes 22 and 22a slide into the female grooves 19 and 19a and force these female grooves 19 and 19a to move laterally to face each other and until the corresponding contact faces 17 come into contact.
  • the two adjacent formwork elements 7-8 or 9-11 are not only rigidly attached to one another but also positioned relative to one another so that the corresponding form surfaces 13a are in the direct extension of one another.
  • the fact that the section 15 is attached to the periphery of the formwork surface 13a reduces any gap that may exist between two formwork elements thus assembled, making it virtually unnecessary to patch the concrete wall.
  • a finishing phase consists of slightly rubbing the concrete veil to smooth any traces of connection until the concrete has reached its maximum hardness.
  • the triangular shapes 22 and 22a form free stops, preventing the two adjacent formwork elements from sliding relative to each other during a possible vibrating phase of the concrete.
  • the shuttering element 9 which has the lateral recess 10.
  • the shuttering element 9 mainly comprises a shuttering plate 24 and a profile 15, previously described, which extends to the rear of the shuttering plate. formwork 24, along the lower edge of the formwork plate 24.
  • the formwork plate 24 comprises four portions.
  • a first portion 25 is intended to receive concrete and is located in the direct alignment of the shuttering plate 13 of the shuttering element 11.
  • a second portion 26 is inclined at an angle of between 90 ° and 160 ° , and for example 110 ° relative to the first portion 25 towards the rear of the shuttering element 9.
  • a third portion 27 is inclined upwards and forms with the portion 26 an angle of between 90 ° and 180 ° , and for example, an angle of 120 °.
  • a fourth portion 28 is perpendicular to the portion 25.
  • the portions 25, 26 and 27 are intended to receive concrete and constitute the formwork surface 29 of the shuttering plate 24 and together form the lateral recess 10.
  • the profile 15 s extends along the portion 25.
  • the mechanical rigidity of the shuttering plate 24 is provided by ribs 30 extending perpendicular to the portions 25 and 28 of the shuttering plate 24, and by the fourth portion 28.
  • Beams 31 connect the shuttering plate 24 to the ribs 30 and reinforces the shuttering plate 24 between two ribs 30.
  • the shuttering element 9 has a height of 30 cm, a length, in the direction perpendicular to the figure, 1.2 m and allows for a side recess 10 14 cm.
  • the Figures 2 and 3 illustrate a swimming pool 5 made with the formwork elements previously described.
  • the manufacturing process of the pool 5 consists in digging a hole 40 in the ground and then pouring a slab of reinforced concrete 41 at the bottom of the hole 40.
  • Metal reinforcements 42 traverse the horizontal slab 41 and project vertically out of the slab 41 at the places where the vertical wall is to be mounted 4.
  • a gasket 43 in progressively swelling material in the presence of water, is arranged at the place where the wall is to be mounted 4.
  • the shuttering panels 1 and 2 are assembled and maintained to one another through tubular holding devices 44.
  • the verticality of the two formwork panels 1 and 2 is provided by struts 45, metal frames 42 are introduced into the space 3 and the concrete is poured.
  • the holding devices 44 connect the shuttering elements 9, 11, 12 of the second shuttering panel 2 to the shuttering elements 7, 8 of the first shuttering panel 1.
  • the shuttering elements situated at the bottom of the wall 4 have No need to be precisely tightened and positioned relative to each other by clamping and positioning tools 20.
  • Only the formwork elements of the pan 2 located at the top of the wall and in particular the formwork element having the lateral recess 10 are associated with each other by the clamping and positioning tool 20.
  • a rigid rod 50 surrounded by a flexible sheath 51, through the space 3.
  • the rigid rod 50 is for example steel and the flexible foam sheath of polyurethane reinforced axially.
  • the rod 50 has at each of its two ends a transverse hole 52 intended to receive a key 53.
  • the key 53 protrudes radially from the flexible sheath 51 so as to act as an axial stop 54 against the shuttering panels 1 or 2.
  • the keys 53 ensure the holding in position of the two form panels 1 and 2.
  • the key 53 passes through an orifice formed in an axial protrusion 55 protruding from the formwork panel 1 or 2. In this option, the formwork panels 1, 2 are held, in both directions, at the distance desired from each other.
  • the keys 53 of the second shuttering panel 2 are removed and the rod 50 is removed axially on the side of the first shuttering panel 1.
  • the removing the rigid rod 50 lowers the radial stiffness of the tubular device 44.
  • the flexible sheath 51 can collapse on its axis and be easily removed. In the method described, the manual interventions between the edge of the earth hole 40 and the second formwork pan 2 are reduced to the maximum, most of the operations can be done from the top of the basin.
  • heels are arranged transversely on the slab 41, step by step, along the path above which the wall 4 will rise. These heels whose width is for example 15 cm may be anchored on the slab 41.
  • the slab 41 exceeds outside said pattern of a width for example 45 cm.
  • the second shuttering panel 2 located towards the outside of the pool, is assembled and positioned against the heels of the slab 41.
  • Binding straps are fixed to the vertical uprights of the frames 14 of the elements.
  • adjacent formwork located in the lower part of the second formwork panel 2.
  • brackets are fixed removably on the outer portion of the slab 41 protruding from the location of the walls of the peak. If the wall 4 comprises a lip edge, the formwork element for molding the edge of the lip is assembled in the upper part of the second formwork panel 2.
  • the first panel of formwork 1 is then assembled and positioned in abutment against the ends of the heels of the slab 41 by means of buttress stops located on the inside of the pool and fixed at the junction of the formwork elements.
  • Spacer devices are positioned between the upper parts of the first and second panels of partition distributed along the wall 4 to be constructed and distributed for example every 60 cm. These spacers comprise rods transverse to the wall 4, located above the space 3 for receiving the concrete. These spacers make it possible to adjust the width of the wall 4 in the upper part, including the possible edge of the lip.
  • the distance maintained between the two high parts of the formwork panels is for example 28 cm.
  • Stability crutches located on the inside of the pool, make it possible to adjust the verticality and alignment of all the two formwork panels 1 and 2.
  • the space 3 for receiving the concrete is not traversed by any material element. After disassembly of the formwork, the wall 4 made is directly sealed without the need to fill holes.

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  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Moulds, Cores, Or Mandrels (AREA)
  • Forms Removed On Construction Sites Or Auxiliary Members Thereof (AREA)

Claims (10)

  1. Betonschalungselement (9) für Becken (5), das eine längliche Form aufweist, die dazu bestimmt ist, horizontal für die Schalung des Beckens angeordnet zu werden, und umfassend eine Schalungsplatte (24), die eine Schalungsfläche (29) und eine der Schalungsfläche (29) gegenüberliegende hintere Fläche aufweist, wobei das Schalungselement (9) hinter der Schalungsplatte (24) mindestens ein Hauptanschlussprofil (15) umfasst, das sich entlang des Schalungselements (9) erstreckt und an der Peripherie der Schalungsplatte (24) befestigt ist, wobei der Abschnitt (25) der Schalungsplatte (24), der entlang des Hauptanschlussprofils (15) angeordnet und dazu bestimmt ist, vertikal angeordnet zu werden, einen Querschnitt entlang einer Ebene senkrecht auf das Profil (15) aufweist, der entlang des Hauptanschlussprofils (15) konstant ist, dadurch gekennzeichnet, dass der Querschnitt der Schalungsplatte (24) einen seitlichen Absatz (10) aufweist, wobei ein Abschnitt (27) der Schalungsplatte (24), der sich in einem Abstand zu dem Hauptprofil (15) befindet, seitlich nach hinten zum Abschnitt (25) der Schalungsplatte (24) versetzt ist, und dass das Hauptanschlussprofil (15) eine Kontaktfläche (17) senkrecht zum Abschnitt (25) der Schalungsplatte (24), wo das Profil (15) befestigt ist, aufweist, wobei die Kontaktfläche (17) dazu bestimmt ist, mit einer entsprechenden Kontaktfläche eines angrenzenden Schalungselements (11) in Kontakt zu kommen.
  2. Schalungselement nach Anspruch 1, bei dem das Anschlussprofil (15) eine Positionierfläche (18) aufweist, die mit mindestens einer Nut (19, 19a) parallel zum Abschnitt (25) der Schalungsfläche (29), wo das Profil (15) befestigt ist, versehen ist, wobei die Nut (19) einen Anschlag in eine Richtung senkrecht auf den Abschnitt (25) der Schalungsfläche (29) bildet.
  3. Schalungselement nach einem der vorhergehenden Ansprüche, umfassend Rippen (30) zur mechanischen Verstärkung der Schalungsplatte (24).
  4. Verwendung von Betonschalungselementen (7, 8, 9, 11, 12), von denen mindestens eines einem der Ansprüche 1 bis 3 entspricht, für die Herstellung einer Mauer (4) eines Beckens (5), das dazu bestimmt ist, in die Erde versenkt zu werden, dadurch gekennzeichnet, dass zwei Schalungselemente (8, 12) gegenüber beiderseits eines Raums (3) angeordnet sind, der dazu bestimmt ist, den Beton aufzunehmen, dass mindestens ein Schalungselement (9, 12) nach einem der Ansprüche 1 bis 3 an der Peripherie seiner Schalungsfläche (29, 13a) mit einem weiteren Schalungselement (11) verbunden ist, und dass die Schalungselemente (9, 11, 12) nach dem Festwerden des Betons demontiert werden.
  5. Verwendung nach Anspruch 4 für die Herstellung eines Schwimmbeckens (5), bei dem eine Randplatte (4) bodenbündig ist, bei dem die Randplatte (4) dazu bestimmt ist, einen Bodenbelag (49) aufzunehmen, und einen Plattenrand (48) aufweist, der breiter als die Mauer (4) ist und auf dem Schalungselement (9) aufliegt, und bei dem die Mauer (4) und der Plattenrand (48) gemeinsam mit Beton gegossen werden.
  6. Verwendung nach Anspruch 4 oder 5 für die Herstellung eines dichten Beckens (5), bei dem zwei aneinandergrenzende Schalungselemente (7-8, 9-11, 11-12) durch Spannelemente (20), die mit freien Anschlägen (22, 22a) versehen sind, zusammengefügt sind.
  7. Verwendung nach einem der Ansprüche 4 bis 6, bei der die beiden aneinandergrenzenden Schalungselemente (7-8, 9-11, 11-12) ausgerichtet werden, wobei sie auf Nuten (19) von zwei Positionierflächen (18) von zwei Anschlussprofilen (15) der beiden Schalungselemente (7-8, 9-11, 11-12) zur Anlage gelangen, wobei die beiden Positionierflächen (18) einander seitlich gegenüberliegend positioniert werden, und wobei die beiden Profile (15) aneinander gedrückt werden, bis es zu einem Kontakt zwischen zwei Kontaktflächen (17) der Profile (15) kommt.
  8. Verwendung nach einem der Ansprüche 4 bis 7, bei der eine erste Schalungsfläche (1) zusammengefügt wird, wobei eine Vielzahl von Schalungselementen (7, 8) derart ausgerichtet werden, dass die Schalungsflächen jedes Schalungselements auf einer selben Seite (6) der Schalungsfläche (1) sind; eine zweite Schalungsfläche (2) zusammengefügt wird; die beiden Schalungsflächen (1, 2) in einem Abstand zueinander und einander gegenüber gehalten werden; Beton zwischen die beiden Schalungsflächen (1, 2) gegossen wird; die Schalungselemente (7-8, 9-11, 11-12) demontiert werden, um die Betonmauer (4) freizugeben und die Schalungselemente (7-8, 9-11, 11-12) wiederzuverwenden.
  9. Verwendung nach Anspruch 8, bei der für das Halten der beiden Schalungsflächen (1, 2) in Bezug zueinander rohrförmige Vorrichtungen (44) verwendet werden, die axial starr sind und eine einstellbare radiale Biegsamkeit aufweisen, und bei der der Beton gegossen wird, wenn die radiale Biegsamkeit der Vorrichtungen relativ steifer ist, und die radiale Biegsamkeit der rohrförmigen Vorrichtungen (44) verändert wird, um sie aus dem starren Beton zu entfernen.
  10. Verwendung nach Anspruch 8 für die Herstellung von Schwimmbeckenmauern (4), die vertikal über einer Betonbodenplatte (41) aufragen, bei der eine Vielzahl von Absätzen auf der Bodenplatte (41) angeordnet werden, und die unteren Teile der ersten und zweiten Schalungsflächen (1, 2) an den gegenüberliegenden Enden der Absätze mit Hilfe von Befestigungsflanschen außerhalb des Raums (3), der dazu bestimmt ist, den Beton aufzunehmen, anliegend gehalten werden, die erste Schalungsfläche mit Hilfe von Stabilisierungsstützen, die sich im Inneren des Schwimmbeckens befinden, vertikal gehalten wird, die relative Position der oberen Teile der ersten und zweiten Schalungsflächen (1, 2) mit Hilfe von Abstandshaltern, die nicht durch den Raum (3), der dazu bestimmt ist, den Beton aufzunehmen, hindurchgehen, aufrechterhalten wird.
EP07103624.8A 2006-03-10 2007-03-06 Betonschalungselement und Verwendung für eine Beckenschalung Active EP1832696B1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR0602129A FR2898371B1 (fr) 2006-03-10 2006-03-10 Element de coffrage de beton et utilisation pour le coffrage d'un bassin.

Publications (2)

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EP1832696A1 EP1832696A1 (de) 2007-09-12
EP1832696B1 true EP1832696B1 (de) 2016-07-27

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FR (1) FR2898371B1 (de)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2923072B1 (fr) * 2007-10-24 2009-11-20 Societat D Obres I Freballs Su Procede de realisation d'un cuvelage pour une piscine,une bache ou une enceinte de confinement.
FR2960251A1 (fr) * 2010-05-18 2011-11-25 Pierre Vidal Procede de fabrication d'un bassin d'eau

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3748810A (en) * 1971-03-24 1973-07-31 Mattingly Inc Method of swimming pool manufacture
FR2526841A1 (fr) * 1982-05-13 1983-11-18 Molinengo Daniel Supports de panneaux de coffrage pour le coulage de piscine en beton arme
FR2686637A1 (fr) * 1992-01-24 1993-07-30 Cofreco Dispositif de jonction et d'alignement pour des banches de coffrage.
FR2717848B1 (fr) * 1994-03-23 1996-05-31 Desjoyaux Piscines Panneau pour la réalisation de bassins de rétention.
DE19801232A1 (de) * 1998-01-15 1999-07-22 Frank Gorus Verfahren zum Gießen eines Badebeckens aus Beton

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
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EP1832696A1 (de) 2007-09-12
FR2898371A1 (fr) 2007-09-14
FR2898371B1 (fr) 2010-10-08

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