FR2500042A1 - FORMWORK FOR CONCRETE CONSTRUCTION OF THE COMPOSED TYPE OF FORMWORK BOARDS CONNECTED BETWEEN THEM - Google Patents
FORMWORK FOR CONCRETE CONSTRUCTION OF THE COMPOSED TYPE OF FORMWORK BOARDS CONNECTED BETWEEN THEM Download PDFInfo
- Publication number
- FR2500042A1 FR2500042A1 FR8202834A FR8202834A FR2500042A1 FR 2500042 A1 FR2500042 A1 FR 2500042A1 FR 8202834 A FR8202834 A FR 8202834A FR 8202834 A FR8202834 A FR 8202834A FR 2500042 A1 FR2500042 A1 FR 2500042A1
- Authority
- FR
- France
- Prior art keywords
- formwork
- boards
- recesses
- fishplates
- formwork boards
- 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.)
- Granted
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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
- E04G9/00—Forming or shuttering elements for general use
- E04G9/02—Forming boards or similar elements
- E04G9/04—Forming boards or similar elements the form surface being of wood
Landscapes
- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Life Sciences & Earth Sciences (AREA)
- Wood Science & Technology (AREA)
- Mechanical Engineering (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Forms Removed On Construction Sites Or Auxiliary Members Thereof (AREA)
Abstract
Description
La présente invention a pour objet un coffrage pour la construction en béton se composant de planches de coffrage se touchant par leurs arêtes longitudinales, et qui sont reliées entre elles par des éclisses disposées essentiellement transversalement par rapport à la direction longitudinale des planches de coffrage. The present invention relates to a formwork for concrete construction consisting of formwork boards touching by their longitudinal edges, and which are interconnected by fishplates arranged essentially transversely to the longitudinal direction of the formwork boards.
Des coffrages de ce type pour murs en béton ou analogues ont déjà été décrits par exemple dans la demande de brevet en'République Fédérale d'Allemagne publiée avant examen DE 2 440 784. Formwork of this type for concrete walls or the like has already been described, for example, in the patent application in the Federal Republic of Germany published before examination DE 2,440,784.
Lorsque les planches de coffrage des coffrages connus sont reliées à l'aide d'éclisses, de manière à obtenir des surfaces de coffrage transportables, on constate que la position en saillie des éclisses entraine de nombreux inconvénients. Lors du transport de tels coffrages il s'ensuit une perte de volume, due à l'espace intermédiaire entre les éclisses. D'autre part, les distances entre les poutrelies doivent correspondre aux espaces intermédiaires entre les éclisses. Enfin les coffrages connus ne sont utilisables que d'un seul côté, à savoir la face opposée aux éclisses. When the formwork boards of known formwork are connected using fishplates, so as to obtain transportable formwork surfaces, it can be seen that the projecting position of the fishplates causes numerous drawbacks. When transporting such formwork, this results in a loss of volume, due to the intermediate space between the ribs. In addition, the distances between the beams must correspond to the intermediate spaces between the fishplates. Finally, the known formwork can only be used on one side, namely the face opposite the sides.
De manière à éviter le probleme d'adaptation entre les éclisses et le soubassement ou pour procurer des coffrages utilisables des deux côtés, on utilise également dans la pratique des plaques de coffrage en contreplaqué, qui permettent d'obtenir de bons résultats à la pose. In order to avoid the problem of adaptation between the fishplates and the base or to provide formwork that can be used on both sides, plywood formwork plates are also used in practice, which allow good results to be laid.
Cependant les administrations stipulent de plus en plus souvent que pour le coffrage on utilise des planches simples au lieu de plaques de contreplaqué ou autres plaques de grande surface. Lorsque l'on utilise des plaques de grande surface, on obtient effectivement une structure de surface du béton qui est moins satisfaisante d'un point de vue esthétique que celle qui peut être obtenue avec des planches simples. L'irrégularité lors de la pose des planches simples entraine une structure planchéiée qui ne peut être obtenue avec des plaques de grande surface. However, administrations increasingly stipulate that for formwork, simple planks are used instead of plywood plates or other large surface plates. When using large surface plates, one effectively obtains a concrete surface structure which is less satisfactory from an aesthetic point of view than that which can be obtained with simple planks. The irregularity when laying simple planks results in a planked structure which cannot be obtained with large surface plates.
L'invention a en conséquence pour objet de proposer un coffrage en plaque stable, qui soit utilisable des deux côtés et qui présente le même effet de coffrage que des planches simples. The object of the invention is therefore to provide a stable plate formwork which can be used on both sides and which has the same formwork effect as simple planks.
Ce résultat est obtenu conformément à l'invention avec un coffrage du type décrit ci-dessus, caractérisé en ce que
les planches de coffrage présentent chacune des évidements en alignement l'un de l'autre, dans lequels sont fixées les éclisses.This result is obtained in accordance with the invention with a formwork of the type described above, characterized in that
the formwork boards each have recesses in alignment with one another, in which the ribs are fixed.
Par cette disposition on obtient une structure plan cheiée, qui correspond à chacune des planches simples, bien que le coffrage en tant que tel affecte la structure d'une grande plaque. By this arrangement we obtain a cheie plan structure, which corresponds to each of the simple planks, although the formwork as such affects the structure of a large plate.
Selon un mode de mise en oeuvre de 1 invention, la profondeur des évidements sera égale a la moitié de l'épaisseur de planche de coffrage. According to an embodiment of the invention, the depth of the recesses will be equal to half the thickness of the formwork board.
Cette structure sera particulièrement simple à réaliser si en outre les parois latérales des évidements sont disposées a angle droit par rapport à la face supérieure des planches de coffrage. This structure will be particularly simple to produce if, in addition, the side walls of the recesses are arranged at right angles to the upper face of the formwork boards.
On obtient en outre des plaques de coffrage de grande stab-ilité en forme et permettant une longue utilisation si elles sont conçues de manière telle que la distance entre les parois latérales augmente vers le milieu des planches de coffrage. We also obtain formwork plates of great stability in shape and allowing long use if they are designed in such a way that the distance between the side walls increases towards the middle of the formwork boards.
De manière à donner aux planches la liberté de mouvement nécessaire pour obtenir lteffet de planches simples, il est avantageux que les éclisses et les planches de coffrages soient clouées entre elles
Pour la stabilité de forme et la durée possible d'utilisation du coffrage, il est avantageux que les éclisses et les planches de coffrage soient reliées entre elles par rivetage.In order to give the boards the freedom of movement necessary to obtain the effect of simple boards, it is advantageous that the ribs and the formwork boards are nailed together.
For form stability and the possible duration of use of the formwork, it is advantageous that the fishplates and the formwork boards are connected to each other by riveting.
Selon un mode avantageux de mise en oeuvre de l'invention, les planches de coffrage présenteront le long de leurs are tes longitudinales un double bouvetage triangulaire, les arêtes frontales des éclisses étant egalement taillées selon une structure s'adaptant à oe double bouvetage . Il est alors avantageux dans ce cas que les arêtes frontales des planches de coffrage présentent également ce double bouvetage triangulaire. According to an advantageous embodiment of the invention, the formwork boards will have along their longitudinal edges a double triangular joint, the front edges of the ribs also being cut according to a structure adapting to this double joint. It is then advantageous in this case that the front edges of the formwork boards also have this double triangular bouvillage.
La liaison des planches du coffrage conforme à l'invention avec des éclisses confere aux planches de coffrage un jeu suffisant pour réaliser une structure de planches simples à l'aide d'une plaque de grande surface. Le coffrage conforme à l'invention est utilisable des deux côtés et peut hêtre aisément transporté. The connection of the formwork boards according to the invention with fishplates gives the formwork boards sufficient clearance to produce a structure of simple boards using a large surface plate. The formwork according to the invention can be used on both sides and can be easily transported.
On décrira maintenant un mode de mise en oeuvre en référence à la figure unique annexée qui est une vue en perspective d'une plaque de coffrage conforme à l'invention. An embodiment will now be described with reference to the single appended figure which is a perspective view of a formwork plate according to the invention.
Le coffrage désigné généralement par la référence (1) se compose d'une pluralité de planches de coffrage (2) qui sont en contact l'une de l'autre le long de leurs arêtes longitudinales (3). Il est particulièrement avantageux de prévoir un double bouvetage triangulaire (4) au niveau du contact entre les arêtes longitudinales (3), ce qui permet d'obtenir une étanchéité particulièrement bonne. The formwork generally designated by the reference (1) consists of a plurality of formwork boards (2) which are in contact with each other along their longitudinal edges (3). It is particularly advantageous to provide a double triangular cover (4) at the contact between the longitudinal edges (3), which makes it possible to obtain a particularly good seal.
Sur les arêtes frontales des planches de coffrage (2) on prévoit de la même manière un double bouvetage triangulaire (6), ce qui permet de relier entre eux de manière particulièrement avantageuse plusieurs coffrages (1), de manière à réaliser des grandes surfaces de coffrage. On the front edges of the formwork boards (2), a double triangular bouvillage (6) is provided in the same way, which makes it possible to connect together, in a particularly advantageous manner, several formworks (1), so as to produce large surfaces of formwork.
Les planches de coffrage (2) présentent à intervalles fixes des évidements (7) qui servent à recevoir des éclisses (8). The formwork boards (2) have recesses (7) at fixed intervals which are used to receive fishplates (8).
Les parois latérales (9) des évidements peuvent être à angle droit par rapport à la face supérieure des planches de coffrage (2) ou encore etre inclinées. La section des éclisses (8) correspondra à celle des évidements, de manière à ce que celles-ci s'y adaptent bien.The side walls (9) of the recesses can be at right angles to the upper face of the formwork boards (2) or even be inclined. The section of the fishplates (8) will correspond to that of the recesses, so that they adapt well to it.
La profondeur des évidements (7) sera comprise entre le tiers et les deux tiers de l'épaisseur des planches de coffrage (2). De préférence les évidements iront jusqu' à la moitié de lié- paisseur des planches de coffrage (2). The depth of the recesses (7) will be between one third and two thirds of the thickness of the formwork boards (2). Preferably the recesses will go up to half the thickness of the formwork boards (2).
Les arêtes frontales (10) des éclisses (8) sont également biseautées de manière à correspondre au bouvetage triangulai- re des bords du coffrage (1). The front edges (10) of the ribs (8) are also bevelled so as to correspond to the triangular jointing of the edges of the formwork (1).
En plaçant les éclisses (8) dans les évidements (7) on obtient un blocage qui empeche un déplacement des planches de coffrage l'une par rapport à l'autre. On obtient une stabilité de forme particulièrement élevée du coffrage (1) Si les éclisses (8) sont fixées dans les évidements (7) par rivetage. Le cloutage des éclisses avec les planches de coffrage (2) permet aux planches de coffrage (2) de rester suffisamment mobiles pour obtenir l'ef- fet de coffrage du type à planches simples, malgré la grande sta- bilité de forme du coffrage (1). By placing the ribs (8) in the recesses (7), a blocking is obtained which prevents displacement of the formwork boards relative to each other. Particularly high form stability of the formwork (1) is obtained If the ribs (8) are fixed in the recesses (7) by riveting. The studding of the fishplates with the formwork boards (2) allows the formwork boards (2) to remain sufficiently mobile to obtain the formwork effect of the simple plank type, despite the great form stability of the formwork ( 1).
Selon la longueur du coffrage (1), qui peut par exemple atteindre 4 mètres, plusieurs éclisses (8) peuvent s'avérer nécessaires. A la face supérieure des éclisses (8) on peut voir sur la figure les têtes (11) des clous utilisés pour relier entre elles les éclisses (8) et les planches de coffrage (2). Depending on the length of the formwork (1), which can for example reach 4 meters, several fishplates (8) may be necessary. On the upper face of the fishplates (8) we can see in the figure the heads (11) of the nails used to connect the fishplates (8) and the formwork boards (2).
La face supérieure (12) du coffrage (1) peut etre utilisée de la même manière que la face inférieure (13). Comme la face supérieure (12) ne comporte pas de saillies gênantes, les dimensions du soubassement peuvent être choisies indépendamment de l'écart entre les éclisses (8). En outre la planéité de la face supérieure (12) et de la face inférieure (13) facilitent le transport, car il n'y a pas de risque que les éclisses de différentes plaques de coffrage s'accrochent entre elles. Il est à remarquer en outre que les coffrages (1) conformes à l'invention peuvent être transportés de maniere particulièrement compacte. The upper face (12) of the formwork (1) can be used in the same way as the lower face (13). As the upper face (12) does not have annoying projections, the dimensions of the base can be chosen independently of the distance between the ribs (8). In addition, the flatness of the upper face (12) and the lower face (13) facilitate transport, since there is no risk that the ribs of different formwork plates catch on to each other. It should also be noted that the forms (1) according to the invention can be transported in a particularly compact manner.
Pour augmenter encore la durée de vie et la stabilité de forme, les coffrages (1) peuvent être imperméabilisés. To further increase service life and shape stability, the forms (1) can be waterproofed.
De manière avantageuse, l'ecart entre les parois la térales des évidements augmentera ou diminuera en direction du milieu des planches de coffrages Advantageously, the spacing between the walls of the sides of the recesses will increase or decrease towards the middle of the formwork boards.
Claims (9)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19813105994 DE3105994C2 (en) | 1981-02-18 | 1981-02-18 | Shuttering panel |
Publications (2)
Publication Number | Publication Date |
---|---|
FR2500042A1 true FR2500042A1 (en) | 1982-08-20 |
FR2500042B1 FR2500042B1 (en) | 1986-08-14 |
Family
ID=6125186
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR8202834A Expired FR2500042B1 (en) | 1981-02-18 | 1982-02-18 | FORMWORK FOR CONCRETE CONSTRUCTION OF THE COMPOSED TYPE OF FORMWORK BOARDS CONNECTED BETWEEN THEM |
Country Status (3)
Country | Link |
---|---|
CH (1) | CH654616A5 (en) |
DE (1) | DE3105994C2 (en) |
FR (1) | FR2500042B1 (en) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE19541610C2 (en) * | 1995-11-08 | 1998-03-19 | Dold Holzwerke Gmbh | Formwork element for concrete construction |
DE19700920C2 (en) * | 1997-01-14 | 2003-05-15 | Willin Lucia | Element of a formwork form |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1739210U (en) * | 1956-12-03 | 1957-02-07 | Lothar Kuerten | FORMWORK PANEL FOR CONCRETE STRUCTURES. |
DE1748561U (en) * | 1957-02-20 | 1957-07-11 | Mueller & Sohn P | FORM OR WOOD FORMWORK PANEL FOR CONCRETE BLOCK OR PLATE MANUFACTURING. |
CH431014A (en) * | 1965-07-20 | 1967-02-28 | Bruetsch Werner | Formwork panel |
Family Cites Families (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1765557U (en) * | 1956-03-02 | 1958-04-24 | Hermann Kahler | LAMINATED CONCRETE PANEL. |
DE1849044U (en) * | 1959-07-21 | 1962-03-29 | Johann Nepomuk Fischbacher | CONCRETE SHEET PANEL. |
DE7322475U (en) * | 1973-06-16 | 1973-11-29 | Bleichert A | KIT FOR THE CREATION OF BOARD WALLS |
-
1981
- 1981-02-18 DE DE19813105994 patent/DE3105994C2/en not_active Expired
-
1982
- 1982-02-12 CH CH88582A patent/CH654616A5/en not_active IP Right Cessation
- 1982-02-18 FR FR8202834A patent/FR2500042B1/en not_active Expired
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1739210U (en) * | 1956-12-03 | 1957-02-07 | Lothar Kuerten | FORMWORK PANEL FOR CONCRETE STRUCTURES. |
DE1748561U (en) * | 1957-02-20 | 1957-07-11 | Mueller & Sohn P | FORM OR WOOD FORMWORK PANEL FOR CONCRETE BLOCK OR PLATE MANUFACTURING. |
CH431014A (en) * | 1965-07-20 | 1967-02-28 | Bruetsch Werner | Formwork panel |
Also Published As
Publication number | Publication date |
---|---|
CH654616A5 (en) | 1986-02-28 |
DE3105994C2 (en) | 1986-09-18 |
DE3105994A1 (en) | 1983-01-13 |
FR2500042B1 (en) | 1986-08-14 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
TP | Transmission of property | ||
ST | Notification of lapse |