EP3918151A1 - Insert de coffrage pour mur banché - Google Patents
Insert de coffrage pour mur banchéInfo
- Publication number
- EP3918151A1 EP3918151A1 EP20701478.8A EP20701478A EP3918151A1 EP 3918151 A1 EP3918151 A1 EP 3918151A1 EP 20701478 A EP20701478 A EP 20701478A EP 3918151 A1 EP3918151 A1 EP 3918151A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- formwork
- fixing
- guide tube
- wall
- floor
- 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.)
- Withdrawn
Links
- 238000009415 formwork Methods 0.000 title claims abstract description 156
- 238000009416 shuttering Methods 0.000 claims description 26
- 238000005266 casting Methods 0.000 claims description 25
- 125000006850 spacer group Chemical group 0.000 claims description 20
- 238000000034 method Methods 0.000 claims description 16
- 239000004566 building material Substances 0.000 claims description 7
- 239000004035 construction material Substances 0.000 claims description 4
- 238000004519 manufacturing process Methods 0.000 description 13
- 230000000284 resting effect Effects 0.000 description 7
- 238000009499 grossing Methods 0.000 description 6
- 238000010276 construction Methods 0.000 description 5
- 229910000831 Steel Inorganic materials 0.000 description 4
- 238000009435 building construction Methods 0.000 description 4
- 238000009434 installation Methods 0.000 description 4
- 239000000463 material Substances 0.000 description 4
- 239000010959 steel Substances 0.000 description 4
- 238000007373 indentation Methods 0.000 description 3
- 238000003780 insertion Methods 0.000 description 3
- 230000037431 insertion Effects 0.000 description 3
- 238000012423 maintenance Methods 0.000 description 3
- 238000005259 measurement Methods 0.000 description 3
- 230000000295 complement effect Effects 0.000 description 2
- 230000006835 compression Effects 0.000 description 2
- 238000007906 compression Methods 0.000 description 2
- 230000001934 delay Effects 0.000 description 2
- 238000005553 drilling Methods 0.000 description 2
- 230000005489 elastic deformation Effects 0.000 description 2
- 229920000642 polymer Polymers 0.000 description 2
- 238000012546 transfer Methods 0.000 description 2
- 230000000007 visual effect Effects 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 238000001746 injection moulding Methods 0.000 description 1
- 230000001788 irregular Effects 0.000 description 1
- 230000005389 magnetism Effects 0.000 description 1
- 238000009428 plumbing Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 238000013519 translation Methods 0.000 description 1
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
- E04G11/00—Forms, shutterings, or falsework for making walls, floors, ceilings, or roofs
- E04G11/36—Forms, shutterings, or falsework for making walls, floors, ceilings, or roofs for floors, ceilings, or roofs of plane or curved surfaces end formpanels for floor shutterings
- E04G11/365—Stop-end shutterings
-
- 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
- E04G17/00—Connecting or other auxiliary members for forms, falsework structures, or shutterings
- E04G17/06—Tying means; Spacers ; Devices for extracting or inserting wall ties
- E04G17/064—Spacers placed on the bottom of the mould
-
- 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
- E04G17/00—Connecting or other auxiliary members for forms, falsework structures, or shutterings
- E04G17/14—Bracing or strutting arrangements for formwalls; Devices for aligning forms
-
- 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
- E04G21/00—Preparing, conveying, or working-up building materials or building elements in situ; Other devices or measures for constructional work
- E04G21/32—Safety or protective measures for persons during the construction of buildings
- E04G21/3204—Safety or protective measures for persons during the construction of buildings against falling down
- E04G21/3223—Means supported by building floors or flat roofs, e.g. safety railings
Definitions
- the invention relates to the field of building construction and more particularly relates to the formwork material used in this field.
- the aim of the invention is to improve the material and the processes used in the construction of the shuttered walls.
- the invention relates to a formwork insert for shuttering walls of predetermined thickness, this insert comprising:
- the removable fixing element comprising: a first fixing means suitable for fixing on a shuttering; and a second fixing means suitable for its fixing on the formwork insert;
- Another object of the invention is a method for constructing a lower shuttering wall and an aligned upper shuttering wall, this method using a formwork insert as described above. This method further comprises the following steps:
- the method uses a formwork insert which comprises a formwork stopper and the step of positioning two formwork on the floor relative to the guide tube is carried out by positioning the two formwork on either side of the panel stopper, each panel being disposed against a stop edge of the panel stopper.
- Another object of the invention relates to a method of constructing a shuttered wall and an edge floor, this method using a formwork insert comprising a edge guide. This process comprises the following steps:
- the invention allows first to know precisely the position of a lower wall even after a floor has been poured on this lower wall by creating a reference directly connected to the lower wall.
- An upper wall can then be produced by formwork by positioning formwork relative to the reference provided by the formwork insert, these forms therefore being positioned directly relative to the lower wall and not relative to an external reference. Because the upper wall is precisely positioned directly relative to the lower wall, the risk of error is reduced. This risk of error, when it affects load-bearing walls, is unacceptable from the point of view of building certification bodies. The quality of the construction work is thus improved.
- the positioning of the formwork for the realization of the upper wall is done very quickly in comparison with a manual layout on the ground.
- Significant time savings in the installation of the shutters are achieved thanks to the invention, which makes it possible to speed up the delivery times of a site or to avoid delays in the planning of the progress of the site, these delays are commonly a source of significant additional financial costs.
- the invention contributes to the realization of a safer and better building, and this by reducing costs and / or delivery time.
- the formwork insert according to the invention may have the following additional characteristics, alone or in combination:
- the fixing sole has a cavity, the removable fixing element being removably mounted in the cavity by the second fixing means;
- said cavity of the fixing sole is a cylindrical cavity and the second fixing means is a clipping device, the fixing element of the fixing sole being a cylinder clipped into the cylindrical cavity;
- the removable fixing element is a magnet
- the formwork insert has two fixing flanges aligned in a direction parallel to the longitudinal axis of the guide tube;
- the formwork insert comprises a frame connecting the bearing face to at least one sleeve in which the guide tube is mounted;
- the insert comprises at least one elastic stopper arranged opposite the bearing face;
- the distance between the fixing plane of the bearing face and the elastic stopper substantially corresponds to the predetermined thickness of the shuttering wall
- the elastic stopper has a half-cylinder whose longitudinal axis is parallel to the longitudinal axis of the guide tube;
- the insert has a casting level ridge extending perpendicularly to the fixing plane, the guide tube projecting beyond the casting level ridge;
- the insert has a panel stop mounted on the guide tube and having two opposite stop edges;
- the insert comprises means for stopping the stopper from rotating on the guide tube;
- the insert comprises means for stopping the sliding of the panel stop on the guide tube;
- the sliding stop means include a cap on the panel stop
- the panel stop has a floor edge perpendicular to the longitudinal axis of the guide tube
- the insert has a predetermined distance between the floor ridge and the casting level ridge, this predetermined distance corresponding to a predetermined thickness of the floor;
- the insert comprises an edge guide mounted on the guide tube and comprising a retaining finger disposed vis-à-vis the bearing face;
- the edge guide comprises a mounting sleeve mounted, for example sliding, on the guide tube;
- the edge guide comprises means for stopping sliding relative to the guide tube
- the edge guide comprises a clamp associated with a clamping device, the retaining finger being disposed on the clamp;
- the clamp comprises a support surface for formwork means, this support surface being perpendicular to the longitudinal axis of the guide tube;
- the insert has an edge spacer presenting:
- the edge spacer has a floor casting ridge which is perpendicular to the bearing surface
- the height of the edge spacer is equal to a predetermined thickness of the floor
- Figure 1 is a profile view of a wall and its formwork
- FIG.2 Figure 2 shows in perspective two formwork inserts according to the invention fixed on a shuttering
- Figure 3 shows one of the formwork inserts of Figure 2, seen from the side;
- FIG.4 Figure 4 shows the formwork insert of Figure 3 seen from above;
- FIG.5 shows the shuttering stop of the formwork insert of Figures 3 and 4;
- FIG.6 Figure 6 shows a step in the production of a shuttered wall
- Figure 7 shows another step in the production of the shuttered wall
- Figure 8 shows another step in the production of the shuttered wall
- Figure 9 shows a stage of making a floor on the shuttered wall of Figures 6 to 8;
- FIG. 10 represents another step in the production of the floor of FIG. 9;
- Figure 1 1 shows a step in the production of an upper shuttered wall on the floor of Figures 9 and 10;
- Figure 12 shows another step in the production of the upper shuttered wall of Figure 1 1;
- FIG. 13 shows in perspective a step in the production of an edge floor on a shuttered wall
- Figure 14 shows in perspective the edge spacer visible in Figure 13;
- FIG. 15 illustrates another production step of the edge floor of FIG. 13
- Figure 16 illustrates another step in the production of the edge floor of Figure 13;
- FIG. 17 illustrates another step in the production of the edge floor of FIG. 13;
- Figure 18 illustrates an alternative embodiment of the formwork insert according to the invention
- Figure 19 illustrates another alternative embodiment of the formwork insert according to the invention.
- Figure 20 illustrates another alternative embodiment of the formwork insert according to the invention.
- FIG. 1 illustrates the context of implementation of the invention. This figure represents two hips 1, 2 seen in profile. A wall 3 has been cast between the hips 1, 2. The wall 3 is, in the present example, made by pouring concrete. Once the concrete in wall 3 has hardened enough, hips 1, 2 are removed and wall 3 is finished.
- a first panel 1 is first of all positioned in a conventional manner by being fixed to the ground and by being supported so that its formwork surface 4 is plumb, that is to say. ie vertical.
- the panel 1 is a steel panel commonly used on construction sites.
- a line 5 of pour level is then drawn on the formwork surface 4.
- This line 5 of pour level is a horizontal line representing the limit of filling by the concrete of the space present between the formwork 1, 2 and which corresponds therefore to the desired height dimension for the wall 3.
- Two formwork inserts 6 are then placed against the formwork surface 4.
- the inserts 6 are positioned relative to the casting level line 5.
- the formwork inserts 6 each comprise two fixing flanges 7, two elastic stops 8, a casting level ridge 9, as well as a guide tube 10.
- the fixing flanges 7 allow the attachment of the formwork insert 6 to the formwork surface 4 so that the guide tube 10 is parallel to the plane of the formwork surface 4.
- the fixing of the inserts 6 on the surface 4 is moreover carried out so that the guide tube 10 is vertical.
- This plumb of the tube 10 is obtained using a tool such as a spirit level or, more simply, by aligning the fixing flanges 7 on a vertical edge 11 of the panel 1, as shown in Figure 2.
- Figures 3 and 4 show one of the formwork inserts 6.
- the insert 6 comprises a frame 12 made of a polymer which may be a thermoformable polymer with a view to its production by injection molding.
- the frame 12 is designed to occupy a minimum of volume within the wall 3, because the formwork insert 6 is designed to be embedded in the concrete of the wall 3.
- the frame 12 thus comprises a vertical wall 13 provided with recesses 14 , as well as two horizontal walls 15.
- the qualifiers “vertical” and “horizontal” are associated with the walls 13, 15 relative to the orientation of the inserts 6 as they appear in FIG. 3.
- the frame 12 further comprises two sleeves 16 in the extension of one another, extending over the height H of the insert, and allowing the fitting of the guide tube 10.
- the guide tube 10 is here consisting of a square section steel tube.
- the two sheaths 16 are dimensioned to allow a tight fitting of the guide tube 10 and to provide it with a long guide ensuring that the guide tube 10 is parallel to the plane 47 for fixing the soles. 7 fixing.
- the plane 47 for fixing the flanges 7 corresponds to the plane defined by the bearing face 53 of the flanges 7, this plane 47 coinciding with the formwork surface 4 when the insert 6 is fixed against the panel 1.
- the frame 12 can be simplified and comprise, instead of the sleeves 16, an indentation in each horizontal wall 15, these indentations being fitted to the guide tube 10.
- the guide tube 10 is fitted onto the frame 12 while being adjusted. in the two openings formed by the indentations.
- the two fixing flanges 7 are aligned with the insert 6 in a direction parallel to the longitudinal axis 52 of the guide tube. This arrangement allows the plumbing on the edge 11 of the panel 1, as described above.
- the fixing soles 7 each comprise a removable fastening element constituted, in the present example, of a magnetized cylinder 17.
- the fastening soles 7 each have a cylindrical cavity 48 in which the magnetized cylinder is inserted 17.
- FIG. 3 the magnetic cylinder 17 of the top flange 7 is shown outside its cylindrical cavity 48.
- the magnetic cylinder 17 is fixed in the cavity 48 so that the insert 6 can be fixed on the formwork surface 4 of the form 1 by the magnetic adhesion of the magnetized cylinders 17 on the steel of the panel 1.
- the magnetized cylinders 17 can be adjusted with a slight clamping, or clipped, in the cavities 48.
- the removable fixing element here consisting of the magnetized cylinder 17, thus comprises:
- Magnetic cylinders are commonly used in the field of building construction and are already used to position elements such as electrical recess boxes on formwork. Such magnetized cylinders can be used here as magnetized cylinders 17. It may for example be a magnetized cylinder in accordance with patent application FR2708135.
- the fixing soles 7 may include any other first and second fixing means suitable for the removable fixing of the insert 6 on a panel 1 such as, for example, suction cups, electromagnets, expandable plugs, and for the removable fixing of the insert 6 in the fixing sole 7.
- the horizontal walls 15 of the frame 12 connect each fixing sole 7 to an elastic stop 8.
- Figure 4 is a top view of Figure 3 according to section AA and shows the profile of one of the elastic stops 8.
- the elastic stops 8 are, in the present example, half-cylinders aligned vertically in a parallel plane to the fixing plane of the fixing flanges 7.
- the half-cylinders have a longitudinal axis which is parallel to the longitudinal axis 52 of the guide tube 10.
- the wall thickness and the material of the half-cylinders constituting the stops 8 are chosen to allow elastic deformation of the stop 8 when the insert 6 is compressed between two shutters, one of these shutters coming against the fixing flanges 7 and the other panel coming against the elastic stops 8.
- each elastic stop 8 allows linear contact on the corresponding panel.
- the distance D illustrated in Figures 3 and 4, between the fixing plane of the fixing flanges 7 and the end linear contacts of the elastic stops 8, is equal to or slightly greater than the thickness of the wall for which the insert 6 is planned.
- the elastic stops 8 can have any shape allowing elastic deformation and work in compression between two forms, for example an open shape such as the shape 8 ’shown in dotted lines in Figure 4.
- the vertical wall 13 of the frame 12 has an edge 9 of casting level which is perpendicular to the fixing plane 47 of the fixing flanges 7.
- the guide tube 10 protrudes beyond the edge 9 of the level of. casting. This stop 9 is positioned flush with the casting level line 5 to position the insert 6 in height on the panel 1 (see Figure 1).
- the formwork insert 6 further comprises a shuttering stop 21 mounted on the guide tube 10 and which is positioned vertically on the guide tube 10 by a cap 51.
- the shutter stop 21 is shown alone in perspective in FIG. 5.
- This shutter stop 21 comprises a sheath 20 mounted on the guide tube 10 in a sliding adjustment.
- the shuttering stop 21 comprises two opposite and parallel stop edges 22, which are spaced apart by a distance corresponding to the spacing between the formwork surfaces of the formwork which is here 20 centimeters.
- the panel stop 21 further comprises two edges 23 of the floor.
- the cover 51 constitutes a means of stopping the panel stop 21 in sliding relative to the guide tube 10, at a height allowing, when the panel stop 21 is in place against the cover 51 (see FIG. 3), that the two floor ridges 23 are located at a distance L2 from the casting level ridge 9.
- This dimension L2 corresponds to the desired thickness for the floor which will be poured between the levels of the building, ie between the lower walls and the upper walls.
- the panel stopper 21 can be directly fixed at the correct height on the guide tube 10, without cover 51, for example by tight fit. The panel stop 21 is then inseparable from the rest of the insert 6. According to another alternative not shown, the panel stop 21 can be stopped in sliding relative to the guide tube 10 by a stop fixed on the guide tube 10 .
- FIG. 6 illustrates the step subsequent to the step illustrated in FIG. 2.
- the formwork are here seen in profile, and a single insert 6 is visible.
- a second formwork 2 is placed so that its formwork surface 18 is parallel to the formwork surface 4 of the formwork 1, and that these two formwork surfaces 4 , 18 are spaced a distance corresponding to the thickness of the desired wall, for example 20 cm.
- the distance D (see Figures 3 and 4) allows the support, or even the compression, of the elastic stops 8 and a tight fitting of each insert 6 between the two forms 1, 2.
- the formwork can take place by pouring concrete between the two formwork 1, 2.
- the insert 6 is firmly fixed between the two formwork, by the footings of fixing 7 and by elastic stops 8, allows concrete to be poured without the risk of moving the inserts 6. It is not necessary to draw a pour level line on the second section 2, because the flow level is now not only materialized by the line 5 of the pour level of the first section 1, but also by a passing plane by the two edges 9 of casting level.
- Figure 7 illustrates the result of the concrete pour.
- the concrete pour is stopped when its level reaches approximately the pour level, but its upper surface 19 of the wall 3 is irregular due to the properties of the concrete which is seldom sufficiently fluid to level itself by gravity.
- the height H (see figure 3) is 20 centimeters
- the distance D is equal to or slightly greater than 20 centimeters (which corresponds to a wall thickness 3 of 20 centimeters ) and the guide tube 10 has a length of 50 centimeters which corresponds to a protrusion length L1 of the tube 10 beyond the ridge 9 of the casting level of 30 centimeters.
- formwork 1, 2 can be removed and wall 3 is thus finished.
- the magnetized cylinders 17 of the inserts 6 remain fixed on the panel 1 by their magnetism while these magnetized cylinders 17 are detached from their respective cylindrical cavity 48, leaving the corresponding insert 6 in the wall 3.
- the magnetized cylinders 17 are calibrated for this purpose, ie the magnets of the magnetized cylinders 17 exert on the panel in steel a retaining force greater than the force necessary to unclip the magnetic cylinder 17 from its cavity 48.
- the wall 3 thus obtained is shown in profile in Figure 9.
- the formwork stops 21 can be left in place on the formwork inserts 6, as shown in this figure 9, or can be removed beforehand, if they are removable. , so as not to interfere with the pouring of the concrete (as shown in Figures 2, and 6 to 8). If the concrete pouring takes place without the panel stops 21, the latter are then positioned on the guide tube, before the floor pouring operation described below.
- the formwork insert 6 is sized so that the guide tube is equidistant from the two formwork 2, 3.
- the wall 3 thus obtained ( Figure 9) is thus provided with a tube of guidance projecting vertically along the theoretical axis of the wall, that is to say along an axis extending parallel to the faces of the wall, at an equal distance between these faces.
- the next operation is to pour a floor 24 which rests on wall 3 to create an additional level for the building.
- the casting of the floor 24 can be carried out directly on suitable formwork or be carried out, as in the present example illustrated in figure 10, by means of two slabs 25 which are supported on the upper edge. of the wall 3 and which constitute the ceiling of the lower rooms delimited by the wall 3, as well as a support for the pouring of the floor 24.
- the smoothing of the upper section of the wall 3, which is facilitated and secured by the level edges 9 pouring, is therefore essential for a good support of the pre-slabs
- the edges 23 of the floor of the panel stops 21 materialize the pouring level of the floor 24, ie the upper limit up to which the floor must be poured.
- the floor ridges 23 provide a sure reference for the thickness of the floor to be poured and dispense operators from looking for other reference elements which are by definition difficult to implement when pouring a floor between two levels so that the walls of the upper level are not yet completed.
- the operations are continued by mounting a second wall at the upper level, that is to say resting on the floor 24.
- the upper level wall and wall 3 are load-bearing walls and must therefore be aligned with each other (see figure 12 showing the finished upper wall).
- the formwork 1, 2 are now positioned on the floor 24.
- the formwork 1, 2 are positioned relative to the guide tube 10 thanks to the formwork stops 21.
- To position the shutters 1, 2, the base of each panel is simply positioned against the two panel stops 21 which protrude from the lower wall 3 (in the profile view of Figures 10 to 12, only one of the panel stops 21 is visible) .
- the formwork 1, 2 are positioned on either side of the formwork stops 21.
- the two formwork stops 21 thus ensure the positioning of the base of the formwork 1, 2 so that their formwork surfaces 4, 18 are spaced apart. 'a distance determined by the spacing of the stop edges 22 and corresponding to the desired thickness for the upper wall 26.
- This thickness of the upper wall 26 is here identical to the thickness of the lower wall 3.
- the panel stops 21 also ensure the correct positioning of the shutters 1, 2 so that the faces of the walls 3, 26 are aligned, that is to say that each face of the upper wall 26 is in the same plane as the corresponding face of the lower wall 3.
- This positioning of the shutters 1, 2 is achieved quickly only thanks to the shuttering stops 21 and without any other tracing operation on the ground or fixing stops.
- the panel stops 21 advantageously replace the heels regularly used in this field. These heels are generally fixed to the ground following a measurement transfer and tracing operation.
- the panel stopper allows the removal of all operations of measurement transfer, tracing, drilling, doweling and fixing of heel pieces, while avoiding the hazards relating to these operations.
- the formwork 1, 2, after having been thus positioned, are then plumbed and held in place in a conventional manner, for example by shoring, to allow the concrete to be poured.
- Figure 12 shows the upper wall 26 completed, the formwork having been removed. If the upper wall 26 is itself intended to receive an additional level, inserts 6 can also be positioned on the formwork 2, 3, in the same way as for wall 3, and so on, up to the last level of the building.
- FIG. 13 to 17 illustrate optional features of the formwork insert 6 implemented in the particular case of floor edges.
- Floor edges refer to the periphery of a floor pour stop.
- edge guides 27 for pouring a floor whose edge is flush with one of the faces of a lower wall 3.
- edge guides 27 are optionally each associated with an edge spacer 28.
- the edge spacer 28 is shown alone in perspective in FIG. 14.
- the edge spacer 28 comprises a bearing surface 29 which has a shape complementary to the guide tube 10 so that the edge spacer 28 is suitable. to be supported on the guide tube 10 by this bearing surface 29.
- the bearing surface 29 has a V-shaped profile taking into account the square profile and the orientation of the guide tube 10 of this example.
- the edge spacer 28 further comprises support lugs 30 opposite the support surface 29.
- the edge spacer 28 also has a casting ridge 43 forming a height reference for the casting of the floor 32 and facilitating the smoothing of the floor 32.
- Figure 15 shows the assembly of Figure 13 seen in profile.
- a pre-slab 33 was added by resting on the upper edge of wall 3.
- the optional pre-slab 33 allows a floor 32 (visible in figure 16) to be poured which extends only to one side of wall 3 (the left side in Figure 16) and stops by forming an edge aligning with the exterior face of wall 3 (the right face in Figure 16).
- the edge guide 27 comprises a sleeve 34 adapted to be fitted or clamped on the guide tube 10, as well as a clamping structure 35 adapted to hold a clamp 36, the clamping of which is here provided by a toggle device. 37.
- the clamp 36 comprises, among other bearing surfaces, a retaining finger 38 placed below the level of the edge 9 of the casting level of the insert 6, that is to say opposite. vis-à-vis the wall 3. More precisely, the retaining finger is disposed opposite one of the fixing flanges 7. The retaining finger 38 is pressed towards the wall 3 by the clamping structure 35
- the precise height positioning of the edge guide 27 is necessary for the retaining finger 38 to be correctly positioned vis-à-vis the wall 3. This height positioning is ensured by means of stopping the sliding guide.
- sliding stop means allowing this positioning at the top eur of the edge guide 27 is illustrated in FIG. 16: it is a cap 39 of the sleeve 34 which forms an upper stop preventing the sleeve 34 from sinking into the guide tube 10 beyond this cap 39. A stop in vertical translation of the sleeve 34 on the guide tube 10 is thus achieved.
- these sliding stop means may consist, for example, of a lower stop fixed on the guide tube 10 or resting on the edge spacer 28.
- the sliding stop means may be constituted directly by the edge spacer 28 on which the sleeve 34 rests.
- the clamp 36 is suitable for maintaining and clamping against the wall 3 of a formwork board 40 associated with a stiffening profile 41.
- Such formwork boards 40 and profile 41 are in common use. in the field of building construction.
- the clamp 36 can of course, alternatively, have any other shape allowing the clamping of another type. formwork element against the wall 3.
- the assembly must allow the firm hold of a formwork wall extending in the extension of the external face of the wall 3 and allowing the realization of the floor 32 by pouring concrete.
- the formwork board is clamped here against the wall 3 directly by the retaining finger 38.
- the retaining finger 38 also has a horizontal surface 42 adapted to the support of the profile 41 and facilitating its maintenance before tightening.
- Above the wall 3, the formwork board 40 rests on the support legs 30 of the spacer 28.
- the toggle device 37 or any other equivalent device, ensures that the formwork board 40 is held against the wall. the wall 3 and against the edge braces 28 during the pouring of concrete. This arrangement alone allows the formwork elements 40, 41 to be maintained without requiring the use of the edge spacer 28.
- the spacer 28 makes it possible to secure the maintenance if necessary.
- the concrete pour then makes it possible to obtain the floor 32 shown in FIG. 16.
- the concrete pour is stopped with reference to the casting edge 43 of the edge spacer 28.
- the smoothing of the floor 32 is then carried out at ruler and trowel, taking stop 43 as a reference.
- the floor 32 thus obtained thus has an edge perfectly aligned with the outer edge of the lower wall 3 thanks to the positioning offered by the formwork insert 6, in addition to being able to be smoothed without any external reference other than the edge spacer 28.
- Figure 17 illustrates an additional function of the formwork insert 6 when working on an edge.
- the guide tube 10 is used for the insertion of safety posts 44 allowing the installation of guardrails 45 necessary for the safety of operators when working on the banks.
- the posts 44 are tubes of a diameter allowing their insertion into the guide tubes 10. The insertion of the posts 44 over the entire height of the guide tubes 10, a large portion of which is embedded in the wall 3 ensures that the posts 44 are held in place without resorting to any other drilling in the concrete or other installation of a guide.
- Alternative embodiments of the formwork insert can be implemented without departing from the scope of the invention.
- the guide tube 10 may have another form of stop in rotation, different from a square profile, for example a longitudinal groove, to maintain the panel stop 21 or the edge guide 27 in a predetermined angular position. along the longitudinal axis of the guide tube 10.
- the guide tube 10 may be devoid of means for stopping in rotation and the panel stopper is produced accordingly.
- FIG. 18 illustrates such an alternative (the elements common to this alternative and to what has been described previously bear the same numbers).
- the shutter stop 21 is seen from above, between two shutters 1, 2.
- the guide tube 10 is a circular profile tube and the shutter stop can rotate freely around the guide tube 10.
- the formwork stopper comprises two pairs of diametrically opposed branches 49, each branch 49 carrying a stopper edge 22.
- the formwork inserts 6 are preferably used in pairs for the production of a wall, the positioning of a wall 1 against the two corresponding panel stops 21 naturally cause each panel stop 21 to pivot around the guide tube 10 so that two of its stop edges 22 are positioned against the panel 1.
- the doubling of the stop edges 22 for each panel makes it possible to dispense with means of stopping the rotation of the panel stop 21 relative to the guide tube 10.
- FIG. 19 also illustrates a variant of the formwork insert 6.
- the elements common to what has been described above bear the same numbers.
- the formwork insert 6 is fixed on a panel thanks to the fixing flanges 7 but does not rest on the other panel and does not include elastic stops opposite the fixing flanges 7.
- the fixing insert formwork is truncated at the level of a wall 54. Such a formwork insert 6 is only held on a single panel by the fixing flanges 7 during the pouring of concrete.
- the fixing force of the fixing flanges 7 must then be adapted accordingly to be sufficient in view of the forces that the concrete will generate on the insert 6 during the pouring of the concrete.
- the fixing of the formwork insert 6 on a wall thanks to its fixing flanges 7 can be achieved by any means, beyond the fixing by magnetic cylinder 17 described above.
- a cylinder clipped into the cylindrical cavities 48 but not magnetized can be glued, screwed, or nailed to the wooden formwork.
- the bearing face 53 is not defined by fixing flanges but by bearing studs 55.
- the frame 12 is a solid form pierced by the sheath 16 for the passage and maintenance of the guide tube 10.
- Two elastic legs 56 are provided with bearing studs 55 on either side of the frame 12.
- the insert is placed between the two forms 1, 2 and is maintained thanks to the elasticity of the legs 56 which, moreover, automatically position the guide tube at an equal distance from the two forms 1, 2.
- the wall 3 can be made from any material suitable for building construction and which can be poured between two formwork.
Landscapes
- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Mechanical Engineering (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Forms Removed On Construction Sites Or Auxiliary Members Thereof (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR1900890A FR3092124B1 (fr) | 2019-01-30 | 2019-01-30 | Insert de coffrage pour mur banché |
| PCT/EP2020/052048 WO2020157065A1 (fr) | 2019-01-30 | 2020-01-28 | Insert de coffrage pour mur banché |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| EP3918151A1 true EP3918151A1 (fr) | 2021-12-08 |
Family
ID=66867443
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP20701478.8A Withdrawn EP3918151A1 (fr) | 2019-01-30 | 2020-01-28 | Insert de coffrage pour mur banché |
Country Status (3)
| Country | Link |
|---|---|
| EP (1) | EP3918151A1 (fr) |
| FR (1) | FR3092124B1 (fr) |
| WO (1) | WO2020157065A1 (fr) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113977737A (zh) * | 2021-11-01 | 2022-01-28 | 南京冶淳新型建材有限公司 | 一种alc板材及其制作方法 |
| CN115045521B (zh) * | 2022-07-29 | 2023-07-25 | 中建八局第一建设有限公司 | 一种电气预埋盒防锈免钉安装、封堵一体装置及安装方法 |
| FR3150218A1 (fr) | 2023-06-26 | 2024-12-27 | Leviat Ag | Procédé de fabrication d’un mur en béton banché comportant une rive de plancher et dispositif de coffrage pour la mise en œuvre dudit procédé |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| NL167492C (nl) * | 1977-08-09 | 1981-12-16 | Molenaars Betonindustrie Bv | Werkwijze voor het stellen van de wandbekisting voor een gebouw met meer dan een verdieping en zich telkens in een lijn boven en onder een doorlopende vloer uit- strekkende wanden, alsmede stelblok bestemd om bij de- ze werkwijze te worden gebruikt. |
| FR2672627A1 (fr) * | 1991-02-11 | 1992-08-14 | Donzallaz Francis | Dispositif pour coffrer une tete d'une dalle en beton. |
| FR2708135B1 (fr) | 1993-07-22 | 1995-09-29 | Capri Codec Sa | Support d'aimant pour fixer un boîtier d'appareillage sur une banche. |
| US7959125B1 (en) * | 2005-12-23 | 2011-06-14 | Coleman Chuck E | Method of assembling a concrete wall and footing form with cleat for supporting rebar and concrete form |
| BR202015019479U2 (pt) * | 2015-08-13 | 2017-02-14 | Jeruel Plásticos Indústria E Comércio Ltda | disposição aplicada em demarcador de formas de paredes e lajes de concreto |
-
2019
- 2019-01-30 FR FR1900890A patent/FR3092124B1/fr active Active
-
2020
- 2020-01-28 EP EP20701478.8A patent/EP3918151A1/fr not_active Withdrawn
- 2020-01-28 WO PCT/EP2020/052048 patent/WO2020157065A1/fr not_active Ceased
Also Published As
| Publication number | Publication date |
|---|---|
| FR3092124B1 (fr) | 2021-05-21 |
| WO2020157065A1 (fr) | 2020-08-06 |
| FR3092124A1 (fr) | 2020-07-31 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| EP3918151A1 (fr) | Insert de coffrage pour mur banché | |
| WO2005024154A1 (fr) | Plancher | |
| FR2547848A1 (fr) | Paroi prefabriquee destinee a la construction de maisons et autres batiments, et son procede de fabrication | |
| EP2907927B1 (fr) | Dispositif de réservation de passages de canalisations | |
| EP3306013A1 (fr) | Systeme de coffrage, organe de liaison specialement adapte pour un tel systeme de coffrage et procede de realisation d'une dalle d'un batiment mettant en oeuvre un tel systeme de coffrage | |
| FR2565280A1 (fr) | Dispositif pour la fixation de panneaux de coffrage, coffrage et procede de coffrage ainsi qu'element d'ancrage au sol | |
| FR2560913A1 (fr) | Dispositif pour maintenir sur un element de coffrage une fourrure d'engravure et de support eventuel de fers en attente | |
| FR2669957A1 (fr) | Procede pour la pose de dalles rectangulaires sur une facade ainsi que profile de lisse pour la mise en óoeuvre de ce procede. | |
| FR3057594A1 (fr) | Plot d’aide a la pose d’elements de plancher tels que des dalles, systeme de plancher sureleve le comprenant et procede de mise en œuvre de celui-ci | |
| FR2785312A1 (fr) | Dispositif d'appui intermediaire vertical intervenant dans la realisation de doublages en plaques de parois verticales voire inclinees ou horizontales avec isolation incorporee en laine minerale | |
| FR3076846A1 (fr) | Elément pour la finition d'une partie de paroi lors d'un plâtrage et méthode pour sa fabrication | |
| FR3062146A1 (fr) | Procede de realisation d’un ouvrage en beton incorporant des inserts metalliques | |
| EP3889383A1 (fr) | Dispositif de fixation d'un dormant de menuiserie | |
| FR3005678A1 (fr) | Armature pour coffre de volet | |
| EP3715029A1 (fr) | Gabarit et procede de percement | |
| FR2941255A1 (fr) | Banche de moulage d'un voile en beton muni d'un verin d'assemblage a vis et ensemble de banches correspondant. | |
| FR3138460A1 (fr) | Boite de reservation pourvue d’une partie aimantee | |
| EP4056784A1 (fr) | Dispositif d'installation de lames de terrasse | |
| CH492854A (fr) | Coffrage pour ouvrage circulaire en béton | |
| FR2805840A1 (fr) | Dispositif et procede de pose d'un encadrement de porte ou de fenetre dans une ouverture de mur, en vue du positionnement de l'encadrement et de son maintien durant sa fixation | |
| EP0487422A1 (fr) | Profilé pour la fixation d'éléments de recouvrements tels qu'une couverture sur un élément en béton tel qu'une poutre | |
| FR3150218A1 (fr) | Procédé de fabrication d’un mur en béton banché comportant une rive de plancher et dispositif de coffrage pour la mise en œuvre dudit procédé | |
| FR3164493A1 (fr) | Système de positionnement de dispositif de raccordement hydraulique et procédé correspondant | |
| FR2956426A1 (fr) | Banche pourvue d'un dispositif a auto-alignement d'assemblage et de serrage de banches face a face | |
| JP3012926U (ja) | 貫通型吊上げ反転穴付きu字溝の型枠装置 |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: UNKNOWN |
|
| STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: THE INTERNATIONAL PUBLICATION HAS BEEN MADE |
|
| PUAI | Public reference made under article 153(3) epc to a published international application that has entered the european phase |
Free format text: ORIGINAL CODE: 0009012 |
|
| STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: REQUEST FOR EXAMINATION WAS MADE |
|
| 17P | Request for examination filed |
Effective date: 20210830 |
|
| AK | Designated contracting states |
Kind code of ref document: A1 Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR |
|
| 111L | Licence recorded |
Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR Free format text: EXCLUSIVE LICENSE Name of requester: PLAKA GROUP FRANCE S.A.S.U., FR Effective date: 20211115 |
|
| DAV | Request for validation of the european patent (deleted) | ||
| DAX | Request for extension of the european patent (deleted) | ||
| RAP1 | Party data changed (applicant data changed or rights of an application transferred) |
Owner name: LFGS |
|
| RIN1 | Information on inventor provided before grant (corrected) |
Inventor name: LASFARGUES, BERTRAND |
|
| STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN |
|
| 18D | Application deemed to be withdrawn |
Effective date: 20240801 |