Method for manufacturing a formwork concrete wall comprising a floor edge and formwork device for implementing said method

Abstract

The invention relates to the following method for manufacturing a shuttered concrete wall and a floor edge (2): - placing a first vertical formwork (3a, 3b), - fixing at least two vertical guide tubes (4) on said first formwork (3a, 3b), - placing a second formwork (3a, 3b), - pouring concrete between the two formworks (3a, 3b) to form a base wall (1), - placing at least one formwork profile (6), having an inverted U-shaped section, said at least one formwork profile (6) resting on said base wall (1), so that said guide tubes (4) are at least partially located inside the U, - pouring concrete between one of the formworks (3a, 3b) and said at least one formwork profile (6) to form said floor edge (2). Figure for abstract: Fig 7

Description

Title of the invention: Method for manufacturing a formwork concrete wall comprising a floor edge and formwork device for implementing said method Technical field

[0001] The present invention relates to the field of concrete wall construction. It relates more particularly to a method of manufacturing a shuttered concrete wall comprising a floor edge and a corresponding formwork device. The invention makes it possible in particular to produce this edge in a precise, simple and rapid manner, the edge being able to form a continuous reservation above the wall on the inside of the wall, over its entire length, the reservation allowing two layers of reinforcement to pass through, one on each side of the wall. Prior art

[0002] The floor edge, also called a slab edge, is a border located on a wall, on the periphery of a floor. It is usually present on walls forming the facade of a building. It extends the wall in height over part of its thickness, on the outside of the wall. The floor edge makes it possible to form a reservation, that is to say a free space located above the wall on the inside, in which reinforcements, thermal bridge breakers, pre-slabs supported on the wall, beams, or others can be housed depending on the construction principle.

[0003] In the field of concrete formwork walls, the floor edge is usually formed using a reservation box, of the shape and dimensions of the reservation that one wishes to create. The box is placed on the wall, and secured to the interior formwork of the wall. Concrete is then poured between the box and the exterior formwork. Alternatively, the box can be fixed to the interior formwork before the wall is poured, and then marks the height of the wall up to the edge (bottom of the box) and from the top of the edge (top of the box).

[0004] This solution has several disadvantages. First of all, if the exterior formwork must be installed first, the box must be fixed to the interior formwork, it must be installed between the two hips. This step wastes time, because it takes place during the pouring of the wall which must be interrupted. In addition, the installation of the box is not simple, because access is difficult and the box must often be passed between layers of reinforcement. Then it is common for several boxes to be arranged one after the other along the length of a wall, with a space left between two consecutive boxes. This space is used to arrange the tubes intended to receive guardrail posts, which are held in place by pouring concrete into spacing. The spacing between the guardrail posts is then determined by the length of the boxes, and it is necessary to adapt the guardrail rails to this spacing. In addition, since the reservation formed by the boxes is not continuous, it does not allow chaining reinforcements to be accommodated over the entire length of the wall between the wall and the slabs with or without thermal breaks, the presence of which may be imposed by regulations. Statement of the invention

[0005] The present invention aims to overcome these drawbacks by proposing a manufacturing method using a formwork profile, cut to the desired length, reusable or not, positioned precisely thanks to the presence of vertical guide tubes, easy to implement and economical. The formwork device of the invention also facilitates the installation of collective protections after removal of the formwork profile to ensure the safety of the site.

[0006] For this purpose, the invention relates to a method for manufacturing a formwork concrete wall comprising an interior side, an exterior side, and a floor edge extending at the top of said wall on its exterior side, said method comprising the following steps: - installation of a first vertical bench, - fixing at least two vertical guide tubes on said first formwork, said guide tubes being located at the same distance from said first formwork, - installation of a second formwork, parallel to the first formwork, - pouring concrete between the two hips to form a base wall, up to a first predetermined height greater than the level of a lower end of said guide tubes and less than the level of the tops of the guide tubes, - installation of a formwork profile, having an external section in the shape of an inverted U, and resting on said base wall, parallel to said hips, so that said guide tubes are at least partially located inside the U formed by said profile, - pouring concrete between one of the hips and the formwork profile to form said floor edge in the extension of the exterior side of said base wall, up to a second predetermined height corresponding to the top of said floor edge, - removal of said profile.

[0007] Thanks to these arrangements, a continuous floor edge along the entire length of the wall can be manufactured in a simple manner, with reduced work for the operators, whatever the particular phasing imposed by the site. The guide tubes can be advantageously used to support guardrail posts after removal of the profile.

[0008] The step of fixing said guide tubes to said first formwork can be produced by using a formwork insert for each guide tube, this insert comprising: - at least one fixing sole comprising a bearing face defining a fixing plane and allowing the insert to be fixed to said first formwork according to this fixing plane, the fixing sole comprising a cavity and a fixing element arranged in the cavity; - one of said guide tubes extending along an axis parallel to the fixing plane,

[0009] which is an effective means of precisely positioning the guide tubes, and therefore the formwork profile, preferably symmetrically with respect to the formwork.

[0010] One of the legs of the U formed by said formwork profile may have, after the step of placing the formwork profile, an inclination relative to the vertical towards the inside of the U, preferably according to a clearance angle of between 1 and 10°, and during the step of placing the formwork profile, said inclined leg of the U may be placed on the outside of the wall, allowing the formwork profile to be removed easily, without the concrete poured against its outer leg opposing this removal.

[0011] The second predetermined height may be marked on said formwork profile by an angle formed by its U-shaped section on the outside of the wall, the upper part of the U extending above this angle having, after the step of placing the formwork profile, an inclination relative to the horizontal, preferably at an angle of between 10 and 70°, which makes it easier to carry out the step of pouring the floor edge, the height to be reached being clearly visible, and reduces the risk of concrete being placed above the formwork profile and hindering its subsequent removal.

[0012] Said at least one formwork profile may be hollow, which makes it possible to use a solid and reusable material such as metal, the profile being light and not requiring a large quantity of material for its manufacture.

[0013] Said formwork profile may comprise, inside the U, at least one positioning fin extending from one of the legs of the U, and during the step of placing the formwork profile, the latter is guided relative to said guide tubes by said at least one positioning fin, which makes it possible to further improve the precision of the positioning of the formwork profile relative to the guide tubes, and therefore relative to the base wall.

[0014] After the step of placing said formwork profile, said positioning fins can be in contact with at least one of said guide tubes and exert pressure on said guide tube opposing the lifting of said formwork profile during the pouring of the concrete between one of the formworks and said profile, which makes it possible to ensure that the formwork profile is held securely in place during this pouring, and to avoid the risk of concrete passing under the profile.

[0015] Said formwork profile may comprise at least one magnet, and after the step of placing in place of said formwork profile, said magnet can be in contact with at least one of said guide tubes so as to create a magnetic force opposing the lifting of said formwork profile during the pouring of the concrete between one of the formworks and said profile, which makes it possible to ensure that the formwork profile is held securely in place during this pouring, and to avoid the risk of concrete passing under the profile.

[0016] The U formed by the section of the formwork profile can be closed by a caulking means, said caulking means being pierced by the guide tubes when they enter said formwork profile, and during the step of pouring concrete between one of the formworks and the formwork profile, said caulking means can prevent the entry of concrete into said formwork profile, which makes it possible to preserve the reservation up to the level of the top of the base wall, and to prevent concrete entered into the formwork profile from opposing its removal.

[0017] Said formwork profile is closed at at least one of its longitudinal ends by a plug, which makes it possible to prevent concrete from entering said profile, and thus to preserve the reservation up to the level of the top of the base wall, and to prevent concrete from entering the formwork profile and preventing it from being removed.

[0018] After the step of placing said formwork profile, a means for holding the profile can be fixed, preferably by means of a magnet, to at least one of said formworks, so as to hold said profile in place during the step of pouring concrete between one of the formworks and the formwork profile, which makes it possible to ensure that the formwork profile is held in place correctly during this pouring, and to avoid the risk of concrete passing under the profile.

[0019] Said formwork profile may comprise at least one rod sliding in a longitudinal direction, and after the step of placing a first formwork profile, before the step of pouring concrete between one of the formworks and the formwork profile, said rod may be slid so as to extend outside the profile, and to guide the placing of a second formwork profile in the longitudinal extension of said first formwork profile, which makes it possible to ensure precise longitudinal continuity between the consecutive formwork profiles.

[0020] The present invention also relates to a floor edge formwork device at the top of a concrete wall located between two formworks, comprising a hollow formwork profile having an inverted U-shaped section and at least two vertical guide tubes, said device being configured to implement the method according to the invention.

[0021] Thanks to these provisions, a continuous floor edge along the entire length of the wall can be manufactured in a simple manner, with reduced work for the operators, whatever the particular phasing imposed by the site. The guide tubes can be used to support guardrail posts after removal of the profile.

[0022] The present invention also relates to a floor edge formwork device at the top of a concrete wall located between two hips, comprising a formwork profile having an inverted U-shaped section, at least two vertical guide tubes, and at least two formwork inserts, each formwork insert comprising at least one fixing sole comprising a bearing face defining a fixing plane and allowing the fixing of the formwork insert on a first formwork according to this fixing plane, said guide tubes being fixed to said formwork inserts so as to extend along an axis parallel to the fixing plane above said formwork inserts.

[0023] Thanks to these arrangements, a continuous floor edge along the entire length of the wall can be manufactured in a simple manner, with reduced work for the operators, whatever the particular phasing imposed by the site. The guide tubes can be advantageously used to support guardrail posts after removal of the profile. Brief description of the drawings

[0024] The present invention and its advantages will appear better in the following description of several embodiments given as non-limiting examples, with reference to the appended drawings, in which:

[0025] [Fig-1] [Fig.l] is a side view of a first step of a method according to a preferred embodiment of the invention,

[0026] [Fig.2] [Fig.2] is a side view of a second step of a method according to a preferred embodiment of the invention,

[0027] [Fig.3] [Fig.3] is a side view of a third step of a method according to a preferred embodiment of the invention,

[0028] [Fig.4] [Fig.4] is a side view of a fourth step of a method according to a preferred embodiment of the invention,

[0029] [Fig.5] [Fig.5] is a side view of a fifth step of a method according to a preferred embodiment of the invention,

[0030] [Fig.6] [Fig.6] is a side view of a sixth step of a method according to a preferred embodiment of the invention,

[0031] [Fig.7] [Fig.7] is a side view of a seventh step of a method according to a preferred embodiment of the invention, and

[0032] [Fig.8] [Fig.8] is a side view of an eighth step of a method according to a preferred embodiment of the invention, and

[0033] [Fig.9] [Fig.9] is a side view of a wall having a floor edge manufactured according to the process of [Fig.l] to 8,

[0034] [Fig. 10] [Fig. 10] is a perspective view of the wall of [Fig.9],

[0035] [Fig. 11] [Fig. 11] is a perspective view of the profile used in the process of figs. 1 to 8 including a stopper, and

[0036] [Fig. 12] [Fig. 12] is a perspective view of the profile used in the process of figs. 1 to 8 including stems, Description of the embodiments

[0037] In the illustrated embodiments, identical elements or parts bear the same reference numbers. Furthermore, terms which have a relative meaning, such as vertical, horizontal, right, left, front, rear, above, below, etc. must be interpreted under normal conditions of use of the invention, and as shown in the figures. Furthermore, the geometric positions indicated in the description and the claims, such as “perpendicular”, “parallel”, “symmetrical” are not limited to the strict sense defined in geometry, but extend to geometric positions which are close, that is to say which accept a certain tolerance in the technical field considered, without influence on the result obtained. This tolerance is notably introduced by the adverb “substantially”, without this term necessarily being repeated before each adjective.

[0038] With reference to the figures, the invention makes it possible to manufacture a formwork concrete wall, comprising a base wall 1, on which a floor edge 2 rises.

[0039] The wall is a vertical wall. It is preferably a facade wall, that is to say a wall intended to separate the interior from the exterior of a construction. In the context of the present invention, the terms "interior", respectively "exterior", refer to the face of the wall which is intended to be inside, respectively outside, of the construction.

[0040] The wall can be made of any type of concrete. The concrete is preferably a standard cement concrete, but can also be a lightweight concrete such as an insulating concrete, a high-performance concrete, or even an ultra-high-performance concrete. Furthermore, the concrete can be a reinforced concrete, or a concrete reinforced with fibers such as metal, polymer or mineral fibers.

[0041] The floor edge 2 is an element located at the top of the base wall 1, extending over all or part of the length of the base wall 1, and extending the base wall 1 in height up to a certain level. The floor edge 2 has a thickness less than the thickness of the base wall 1, and is located on the outside of the base wall 1 so that the outside face of the floor edge 2 is aligned with the outside face of the base wall 1. The floor edge 2 can be made of the same concrete as the base wall 1. The floor edge 2 can also be made of a concrete different from the concrete of the base wall 1, for example an insulating concrete.

[0042] After the installation of two vertical hips parallel to each other, the base wall 1 is made by pouring concrete between these two hips: an interior hip 3a located on the inside of base wall 1, and an exterior formwork 3b located on the outside of base wall 1. The formworks used are classic formworks, made of metal and / or wood.

[0043] Depending on the particular constraints of a construction site, it may be preferable to install the inner formwork 3a first, then the outer formwork 3b, or on the contrary the outer formwork 3b first, then the inner formwork 3a. The method according to the invention is compatible with these two options. The first formwork 3a, 3b to be installed, hereinafter referred to as “first formwork 3a, 3b”, may therefore be either the inner formwork 3a or the outer formwork 3b. The second formwork 3a, 3b to be installed will hereinafter be referred to as “second formwork 3a, 3b”.

[0044] After having put in place the first formwork 3a, 3b, and preferably before putting in place the second formwork 3a, 3b, the method according to the invention comprises a step of fixing at least two vertical guide tubes 4 on the first formwork 3a, 3b. The outcome of this step, before putting in place the second formwork, is illustrated in a preferred embodiment of the invention in [Fig.l]. The situation after putting in place the second formwork is illustrated in [Fig.2].

[0045] The guide tubes 4 are preferably made of metal, and have, for example, a square section. They are preferably identical to each other.

[0046] The guide tubes 4 are each located at the same distance from said first panel 3a, 3b. The distance between the middle of the guide tubes 4 and the first panel 3a, 3b is preferably between 80 and 120 mm, for example 100 mm, these values ​​not being restrictive. In a preferred embodiment of the invention, once the two panels 3a, 3b are in place, the guide tubes 4 are located at the same distance from each panel 3a, 3b.

[0047] The tops of the guide tubes 4 are preferably located at the same height. Since the guide tubes 4 are preferably all identical, their lower ends are then also preferably located at the same height.

[0048] The fixing of the guide tubes 4, the precise placement of which is particularly important in the context of the present invention, can be facilitated by the use of a formwork insert 5. An example of such a formwork insert 5 is described in document FR3092124A1. In particular, the formwork insert 5 may comprise a fixing sole comprising a bearing face defining a fixing plane. This bearing face allows the insert to be fixed to the first formwork 3a, 3b according to this fixing plane. The fixing sole may comprise a fixing element housed in a cavity, the fixing element being for example a magnet if the formwork is made of metal, or a nail if the formwork is made of wood. The formwork insert comprises for example a sleeve allowing a guide tube 4 to be arranged therein, along an axis parallel to the fixing plane.

[0049] Once the two hips 3a, 3b are in place and the guide tubes 4 are fixed to the first formwork 3a, 3b, concrete is poured between the two hips 3a, 3b to form the base wall 1, as illustrated in [Fig. 3]. The concrete is poured up to a first predetermined height H1, corresponding to the desired height of the base wall 1. The first predetermined height H1 is preferably greater than the lower end of the guide tubes 4, which has the consequence of embedding a lower part of the guide tubes 4 in the concrete. This predetermined height is less than the upper end of the guide tubes 4, which has the consequence of leaving an upper part of the guide tubes 4 rising above the base wall 1.If formwork inserts 5 are used, these may constitute a reference for the first predetermined height HL. The formwork inserts 5 are for example positioned so that their upper end corresponds to the first predetermined height HL.

[0050] After fixing the guide tubes 4 on the first formwork 3a, 3b, and preferably after pouring the concrete to form the base wall 1, a formwork profile 6 is arranged on the guide tubes 4. The formwork profile 6 has an outer section having a U-shape, the U being inverted, i.e. open downwards. This opening may remain open, particularly if the formwork profile 6 is hollow, or closed by material, particularly if the formwork profile 6 is solid, or if the formwork profile 6 is hollow and has a sealing means as described later.The formwork profile 6 rests on the base wall 1, so that the legs of the U are in contact with the base wall 1. The formwork profile 6 is arranged parallel to the hips 3a, 3b, that is to say that it extends longitudinally in a horizontal direction parallel to the planes formed by the hips and delimiting the base wall 1. After the formwork profile 6 has been put in place, the guide tubes 4 are located at least partially inside the U formed by its section. The formwork profile 6 is preferably hollow, which allows it to be put in place on the guide tubes 4 from above. The formwork profile 6 may also be at least partially solid, and the guide tubes 4 may enter the profile by piercing the material of the formwork profile 6. The step of placing the formwork profile 6 is illustrated in [Fig.4] and 5.

[0051] The formwork profile 6 is preferably made of a metallic material, such as lacquered aluminum. The formwork profile 6 may also be made of wood, a polymer, or any synthetic or composite material. If it is made of one of these materials, the formwork profile 6 is preferably hollow. Alternatively, the formwork profile 6 may be made of a foam such as polystyrene, which is advantageous for a solid formwork profile 6. The formwork profile 6 may also comprise an envelope and a filling of two distinct materials.

[0052] The formwork profile 6 can have a length of between 2 and 4 m, for example example 3 m, and a height between 20 and 40 cm, for example 30 cm, these values ​​not being restrictive.

[0053] In order to facilitate the handling of the formwork profile 6, the latter may comprise a handle 7, preferably located longitudinally in the middle, and at the top of the formwork profile 6 when the latter is in place on the base wall 1.

[0054] In order to ensure optimal placement of the formwork profile 6 relative to the guide tubes 4, the profile 6 may comprise, when it is hollow, inside the U formed by its section, one or more positioning fins 8 for guiding the formwork profile 6 into position when it is placed on the base wall 1. The positioning fins 8 are identified in [Fig. 4], 5, 11 and 12. The positioning fin(s) 8 extend, preferably horizontally when the formwork profile 6 rests on the base wall 1, from one of the legs of the U, towards the inside of the U. Preferably at least two positioning fins 8 extend at the same horizontal level. The horizontal spacing between two fins 8 located on the same level preferably corresponds to the external section of the guide tubes 4.In a preferred embodiment, at least four positioning fins 8 are present, at at least two distinct horizontal levels, with at least two fins 8 extending from each leg of the U, which makes it possible to position the formwork profile 6 precisely horizontally relative to the guide tubes 4. For example, in the embodiment illustrated in [Fig. 4] at 8 and 10 at 11, the formwork profile 6 comprises six positioning fins 8 distributed over three levels. The guide tubes 4 themselves being precisely positioned relative to the hips 3a, 3b, and therefore to the base wall 1, these fins 8 make it possible to correctly position the formwork profile 6 relative to the base wall 1.

[0055] In most cases, the formwork profile 6 can be placed in a stable and precisely positioned manner using two guide tubes 4. However, it is possible in certain cases to use three or more guide tubes 4, for example if the formwork profile 6 has a significant length, for example greater than 3 m.

[0056] Depending on the length of the floor edge 2 to be produced, one or more formwork profiles 6 may be used, each allowing the floor edge to be formed over a certain length, for example 3 m. When several formwork profiles 6 must be used, the formwork profiles 6 are placed end to end until the desired length is reached. When this is necessary in order to achieve a precise length, one or more formwork profiles 6 may be cut on site. The section of the formwork profile 6 being preferably constant over its entire length, this does not pose any particular problem. In order to improve the relative placement of two adjacent formwork profiles 6, the formwork profile 6 may comprise, as illustrated in [Fig. 12], at least one rod 9 sliding in a longitudinal direction, i.e. horizontal ment after the installation of the formwork profile 6. The rod(s) 9 are supported and guided in the formwork profile 6 by rails 10 of the formwork profile 6. After the installation of a first formwork profile 6 on the base wall 1, the rod 9 can be slid so as to extend out of the formwork profile 6. For the installation of a second formwork profile 6, the rod 9 of the first formwork profile 6 is arranged in a rail 10 of the second formwork profile 6, ensuring longitudinal continuity between the first formwork profile 6 and the second formwork profile 6, and therefore continuity of the reservation and consequently of the shape of the floor edge 2. It is also possible to arrange on the rod 9 a segment of a formwork profile 6 of a variable length, which allows the formwork profile 6 comprising the rod 9 to be extended, for example to complete the reservation at the longitudinal end of the wall.As illustrated in [Fig. 12], the rails 10 may be formed at least in part by positioning fins 8. .

[0057] After the installation of the formwork profile 6, the method according to the invention comprises a step of pouring concrete between the outer formwork 3b and the formwork profile 6 up to a second predetermined height H2, in order to form the floor edge 2, as illustrated in [Fig.7]. The U formed by the section of the formwork profile 6 comprises an outer leg 11, located on the outer side of the wall when the formwork profile is installed and rests on the base wall 1. The floor edge 2 being formed between the outer leg 11 and the outer formwork 3b, the outer leg 11 is preferably flat, which allows the inner side of the floor edge 2 to be flat.

[0058] In order to facilitate the step of pouring the floor edge 2, the formwork profile 6 may include a mark M1, identified in [Fig.4] and 5, corresponding to the second predetermined height H2. This mark is preferably materialized by an edge of the formwork profile 6 located at the top of the outer leg 11. After the formwork profile 6 has been placed on the base wall 1, the upper part of the U-shaped section located immediately above this edge has an inclination relative to the horizontal at an angle which may be between 10 and 70°, for example 35°. Thus, during the step of pouring the floor edge 2, it is easy for the operator to see that the second predetermined height H2 has been reached. In addition, the amount of concrete that could pass over the formwork profile 6 and prevent its future shrinkage is reduced, or even zero.

[0059] In a preferred embodiment of the invention, at least two positioning fins 8 remain in contact with the formwork profile 6 after it has been put in place, and the spacing between these positioning fins 8 is such that they exert pressure on the guide tube 4. This pressure / constraint opposes an upward movement of the formwork profile 6, and in particular prevents the profile from being lifted. formwork 6 during the concrete pouring stage between the formwork profile 6 and the outer formwork 3b.

[0060] Other means may be used to prevent involuntary movement of the formwork profile 6 during the pouring of concrete in order to form the floor edge 2. The formwork profile 6, if it is hollow, may for example comprise a magnet inside the U formed by its section, and after the step of placing the formwork profile the magnet may be in contact with at least one of the guide tubes 4 and create a force opposing the movement of the formwork profile 6 relative to the guide tubes 4.

[0061] Alternatively, as illustrated in [Fig.6], a holding means 12 for the formwork profile 6 can be fixed to a formwork 3a, 3b, for example by means of a magnet if the formwork 3a, 3b is made of metal, after the step of placing the profile. The holding means 12 can then constitute a stop opposing an upward movement of the formwork profile 6.

[0062] In a preferred embodiment of the invention and as illustrated in [Fig. 4] to 8, the U formed by the section of the formwork profile 6, if the formwork profile 6 is hollow, can be closed by a caulking means 13. The caulking means 13 is arranged between the ends of the legs of the U. It is preferably present in the formwork profile 6 before the step of placing the formwork profile 6. It can comprise openings for the guide tubes 4 to pass through, or it can be pierced by the guide tubes 4 when they enter the formwork profile 6, the latter option giving more flexibility because the spacing between the guide tubes 4 does not need to be precisely marked on the formwork profile 6. The caulking means 13 allows that during the step of pouring concrete between the formwork profile 6 and the outer formwork 3b, the concrete cannot enter inside the U formed by the section of the formwork profile 6.The sealing means 13 can be made of various materials, for example honeycomb cardboard, preferably single-use, or a plastic or rubber cover, preferably reusable. When recovering the formwork profile 6 for reuse, the sealing means 13, when single-use and possibly pierced by the guide tubes 4, can be replaced by a new sealing means 13.

[0063] When hollow, the formwork profile 6 may be closed at one or both of its longitudinal ends by a removable plug 14, illustrated in [Fig. 11]. The plug 14 is for example made of plastic, in a flexible material in order to allow it to be clipped onto the formwork profile 6. The plug 14 makes it possible to prevent concrete from entering the formwork profile 6 when concrete is poured against the formwork profile 6.

[0064] When the concrete of the floor edge 2 is dry, the formwork profile 6 can be removed, as illustrated in [Fig.8]. In order to facilitate removal, the U formed by the formwork profile 6 preferably comprises an outer leg 11 having, when the formwork profile 6 is in place resting on the base wall 1, an inclination relative to the vertical towards the inside of the U, forming a draft angle. This inclination may have an angle of between 1 and 10°, for example 3°. When the formwork profile 6 is placed on the base wall 1, the outer leg 11 is placed on the outside of the wall, and it is therefore between the outer leg 11 and the outer formwork 3b that the floor edge 2 is formed. Thanks to this inclination, the concrete of the floor edge 2 lying against the outer leg 11 is not likely to oppose the removal of the formwork profile 6.

[0065] Finally, the hips 3a, 3b can be removed, as illustrated in [Fig.9] and 10.

[0066] A floor can then be formworked on the inside of the wall at the level of the guide tubes 4, the upper end of the guide tubes 4 being at least at the level of the lower level of the floor. The spacing between the guide tubes 4 along the wall is preferably chosen to correspond to the spacing of the posts of the guardrails which will be arranged along the edge of the floor when the collective protection against falls is put in place.

[0067] The present invention is of course not limited to the embodiments described but extends to any modification and variant obvious to a person skilled in the art within the limits of the appended claims. Furthermore, the technical characteristics of the different embodiments and variants mentioned above may be, in whole or in some cases, combined with each other.

Claims

Claims

1. A method of manufacturing a formwork concrete wall comprising an inner side, an outer side, and a floor edge (2) extending at the top of said wall on its outer side, said method comprising the following steps: - placing a first vertical formwork (3a, 3b), - fixing at least two vertical guide tubes (4) on said first formwork (3a, 3b), said guide tubes (4) being located at the same distance from said first formwork (3a, 3b), - placing a second formwork (3a, 3b), parallel to the first formwork (3a, 3b), - pouring concrete between the two hips (3a, 3b) to form a base wall (1), up to a first predetermined height (Hl) lower than the level of the tops of the guide tubes (4), - placing at least one formwork profile (6), having a U-shaped outer section inverted, and resting on said base wall (1), parallel to said hips (3a, 3b),so that said guide tubes (4) are at least partially located inside the U formed by said at least one formwork profile (6), - pouring concrete between one of the hips (3a, 3b) and said at least one formwork profile (6) to form said floor edge (2) in the extension of the outer side of said base wall (1), up to a second predetermined height (H2) corresponding to the top of said floor edge (2), - removing said at least one formwork profile (6).,

2. Method for manufacturing a formwork concrete wall according to claim 1, in which the step of fixing said guide tubes (4) on said first formwork (3a, 3b) is carried out by using for each guide tube (4) a formwork insert (5), this insert comprising: - at least one fixing sole comprising a bearing face defining a fixing plane and allowing the fixing of the insert on said first formwork (3a, 3b) according to this fixing plane; - one of said guide tubes (4) extending along an axis parallel to the fixing plane.

3. A method of manufacturing a formwork concrete wall according to any one of claims 1 to 2, in which one of the legs of the U formed by said at least one formwork profile (6) has, after the step of placing said at least one formwork profile (6), an inclination relative to the vertical towards the inside of the U, preferably according to a draft angle of between 1 and 10°, and during the step of placing said at least one formwork profile (6), said inclined leg of the U is placed on the outside of the wall.

4. A method of manufacturing a formwork concrete wall according to any one of claims 1 to 3, wherein the second predetermined height (H2) is marked on said at least one formwork profile by an angle (Ml) formed by its U-shaped section on the outside of the wall, the upper part of the U extending above this angle having, after the step of placing said at least one formwork profile (6), an inclination relative to the horizontal, preferably at an angle of between 10 and 70°.

5. A method of manufacturing a formwork concrete wall according to any one of claims 1 to 4, wherein said at least one formwork profile (6) is hollow.

6. A method of manufacturing a formwork concrete wall according to claim 5, wherein said at least one formwork profile (6) comprises, inside the U, at least one positioning fin (8) extending from one of the legs of the U, and during the step of placing said at least one formwork profile (6), the latter is guided relative to said guide tubes (4) by said at least one positioning fin (8).

7. A method of manufacturing a formwork concrete wall according to claim 6, wherein after the step of placing said at least one formwork profile (6), said positioning fins (8) are in contact with at least one of said guide tubes (4) and exert pressure on said guide tube (4) opposing the lifting of said at least one formwork profile (6) during the pouring of the concrete between one of the hips (3a, 3b) and said at least one formwork profile (6).

8. A method of manufacturing a formwork concrete wall according to any one of claims 5 to 7, wherein said at least one formwork profile (6) comprises at least one magnet, and after the step of placing said at least one formwork profile (6), said magnet is in contact with at least one of said guide tubes (4) so ​​as to create a magnetic force opposing the lifting of said at least one formwork profile (6) during the pouring of the concrete between one of the hips (3a, 3b) and said at least one formwork profile (6).

9. A method of manufacturing a formwork concrete wall according to any one of claims 5 to 8, wherein the U formed by the section of said at least one formwork profile (6) is closed by a caulking means (13), said caulking means (13) being pierced by the guide tubes (4) when they enter said at least one formwork profile (6), and during the step of pouring concrete between one of the formworks (3a, 3b) and said at least one formwork profile (6), said caulking means (13) prevents the entry of concrete into said at least one formwork profile (6).

10. A method of manufacturing a formwork concrete wall according to any one of claims 5 to 9, wherein said at least one formwork profile (6) is closed at at least one of its longitudinal ends by a plug (14).

11. A method of manufacturing a formwork concrete wall according to any one of claims 1 to 10, wherein after the step of placing said at least one formwork profile (6), a profile holding means (12) is fixed, preferably by means of a magnet, to at least one of said formworks (3a, 3b), so as to hold said at least one formwork profile (6) in place during the step of pouring concrete between one of the formworks (3a, 3b) and said at least one formwork profile (6).

12. A method of manufacturing a formwork concrete wall according to any one of claims 1 to 11, wherein said at least one formwork profile (6) comprises at least one rod (9) sliding in a longitudinal direction, and after the step of placing a first formwork profile (6), before the step of pouring concrete between one of the formworks (3a, 3b) and said at least one formwork profile (6), said rod (9) is slid so as to extend out of the formwork profile (6), and to guide the placing of a second formwork profile (6) in the longitudinal extension of said first formwork profile (6).

13. Floor edge formwork device at the top of a concrete wall located between two formworks (3a, 3b), comprising a formwork profile (6) having an inverted U-shaped section and at least two vertical guide tubes (4), said device being configured to implement a method according to any one of claims 1 to 12.

14. Floor edge formwork device at the top of a concrete wall located between two formworks (3a, 3b), comprising a formwork profile (6) having an inverted U-shaped section, at least two vertical guide tubes (4), and at least two formwork inserts (5), each formwork insert (5) comprising at least one fixing sole comprising a bearing face defining a fixing plane and allowing the fixing of the formwork insert (5) on a first formwork (3a, 3b) according to this fixing plane, said guide tubes (4) being fixed to said formwork inserts (5) so as to extend along an axis parallel to the fixing plane above said formwork inserts (5), said device being configured to implement a method according to any one of claims 1 to 12.

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