Climbing formwork uprights for the construction of concrete walls

Abstract

A vertical support (34; 36) for climbing formwork (12) is proposed, comprising: a flat plate (48) extending along a main longitudinal direction; an upper portion (40) projecting from the flat plate (48), the upper portion (40) being configured to form a first pivot joint (44) with a lower portion (42) of a second vertical support (36; 34); and a lower portion (42) projecting from the flat plate (48) opposite the upper portion (40) along the longitudinal direction, the lower portion (42) being configured to form a second pivot joint (46) with an upper portion (40) of the second vertical support (36; 34). Abstract figure: Figure 2

Description

Title of the invention: Climbing formwork uprights for the construction of concrete walls technical field

[0001] The present disclosure falls within the field of climbing formwork for the construction of concrete walls. Previous technique

[0002] Climbing formwork is typically used for constructing concrete walls of a certain height. The walls are built in successive sections, with the climbing formwork resting on a section already completed.

[0003] Some climbing formworks are particularly suited to the construction of walls with a circular cross-section and an evolving geometry, such as towers with a shape of hyperboloids of revolution.

[0004] These climbing formworks comprise series of regularly spaced uprights around the wall, between which formwork panels are inserted. When a concrete layer has been poured, a lower upright from each series of uprights is transferred and fixed to the upper upright of the series in question to allow the pouring of the next layer.

[0005] However, the sequential transfer of the lower uprights to the upper part of the series of uprights requires work on three levels. The lowest level contains the upright to be stripped of its formwork, which is then transferred to the next level. The middle level typically provides support for scaffolding suspended from the wall. The handling required to transfer the formwork from one section to the next is heavy, and the time required to raise the formwork is considerable. Summary

[0006] This disclosure improves the situation.

[0007] A price is proposed for climbing formwork comprising: - a flat plate extending along a main longitudinal direction; - an upper portion projecting from the flat plate, the upper portion being configured to form a first pivot joint with a lower portion of a second upright; and - a lower portion projecting from the flat plate opposite the upper portion in the longitudinal direction, the lower portion being configured to form a second pivot connection with an upper portion of the second upright.

[0008] Such an amount makes it easier to lift the uprights for the construction of a new wall section, by cooperation with another upright. The amount can be The upright is pivoted via the first pivot joint to fold down onto the upper upright. The upright can then be pivoted via the second pivot joint to unfold over the other upright. The uprights can then be easily raised along the wall.

[0009] Optionally, a first axis of rotation of the first pivot joint may extend transversely to the longitudinal direction, and a second axis of rotation of the second pivot joint is parallel to the first axis of rotation.

[0010] With the two axes of rotation parallel, the uprights are raised along a vertical direction for wall construction. The uprights face each other when in the folded position and extend one above the other in the deployed position. This facilitates the raising of the uprights, and the lifting action is repeatable.

[0011] Optionally, the upper portion may include an upper clevis configured to receive a pin axis; and the lower portion may include a lower clevis, the lower clevis being adapted to fit into the upper clevis of the other upright, the lower clevis being configured to receive the pin axis.

[0012] Thus, the pivot joints can be formed in a simple way, by fitting the upper and lower brackets of two uprights together and by inserting the pin axis between the brackets.

[0013] Optionally, the upper clevis may include an upper locking pin, the upper locking pin being configured to block the rotation of the upright around the first axis of rotation of the first pivot joint, and the lower clevis includes a lower locking pin to block the rotation of the upright around the second axis of rotation of the second pivot joint.

[0014] Thus, when the uprights are not moved from the deployed position to the folded position, their rotation can be blocked. The uprights can then serve as supports for formwork panels of the climbing formwork without risk of pivoting.

[0015] Optionally, the amount may further include a jack extending in the longitudinal direction between the upper portion and the lower portion.

[0016] The jack allows the flat plate of the upright to be bent to form a curved wall slice. Each wall slice can be bent independently of the others. The curvature of each wall slice allows for the formation of a continuous wall, without discontinuities between the slices. The bending can also be inward or outward, allowing for the formation of a wall with a complex geometry.

[0017] Optionally, the amount may further include at least one pair of fins projecting from either side of the lower portion and / or the upper portion, each fin being configured to allow the support of a formwork panel of climbing formwork.

[0018] The fins allow the formwork panels to be fixed to form the hips between which the concrete can be poured.

[0019] According to another aspect, an anchoring piece for climbing formwork is proposed, the anchoring piece being configured to mount a stud on a wall under construction, the anchoring piece comprising: - a sheet metal intended to extend in line with the flat plate of the upright; - a through hole formed in the sheet metal, the through hole being configured to engage with an anchor rod embedded in the wall; - a screed protruding from the sheet metal, the screed being configured to form a support for the lower and upper portions of the upright.

[0020] Such an anchor piece allows the uprights to be fixed against the wall, while also permitting the formation of the first pivot joint and the second pivot joint. In particular, the clevis of the anchor piece can be sandwiched between the clevis of the upper portion and the clevis of the lower portion and can receive the pin axis.

[0021] Furthermore, fixing the anchoring parts with anchor rods prevents the formation of holes in the wall that need to be filled. This improves the wall's watertightness.

[0022] Optionally the anchor piece can be configured to fix a post, in which the clevis includes a first hole configured to coincide with the upper locking axis and a second hole configured to coincide with the lower locking axis.

[0023] Thus, the anchor piece allows the first pivot joint and the second joint to be locked together. The upright can be fixed against the wall at both ends by means of two anchor pieces.

[0024] According to another aspect, starting means for climbing formwork are proposed, the starting means being configured to cooperate with a support to carry out a first section of a wall under construction, the starting means comprising: - a rail configured to extend along a floor from an end mounted on the lower portion of the upright, and - a jack extending between one end of the rail distant from the lower portion of the upright and the upper portion of the upright, the jack being configured to adjust an angle formed by the upright and the rail.

[0025] Thus, it is possible to form the first section of a wall in a direction other than the vertical direction. The wall can be inclined from the first concrete section.

[0026] According to another aspect, a set is proposed comprising a first amount and a second amount, the first and second amounts being movable between: - a deployed position in which the first amount extends into the continuation of the second amount; - a folded position in which the first upright faces the second upright, the movement from the deployed position to the folded position being carried out by the first pivot joint and the movement from the folded position to the deployed position being carried out by the second pivot joint.

[0027] Thus, the formwork panels can be lifted by successively reversing the first and second uprights. As described above, lifting the formwork panels is simple to implement, by rotating the uprights.

[0028] Optionally, the assembly may further include a plurality of anchor pieces, one anchor piece being provided at each end of the first upright and the second upright.

[0029] As indicated above, the anchoring parts allow the uprights to be rotated onto the wall without affecting the sealing of said wall.

[0030] Optionally, the assembly may further include starting means mounted on the first upright.

[0031] As indicated above, the first section of the wall can be inclined.

[0032] According to another aspect, a climbing formwork comprising a plurality is proposed of sets arranged regularly around a wall under construction and formwork panels connecting the sets together.

[0033] Thus, the panels and assemblies form a formwork for pouring concrete and creating a section. The shape and curvature of the panels can be adapted according to the geometry of the section to be created. The panels can be replaced for each section without modifying the uprights.

[0034] According to another aspect, a method for constructing a wall using at least one assembly is proposed, the method comprising: - to form the first pivot link between the first amount and the second amount; - rotate the first amount around the second amount by the first pivot joint; - to form the second pivot link between the first amount and the second amount; - rotate the first upright around the second upright by the second pivot joint.

[0035] Optionally, the method may further include: - bend at least one of the first and second uprights according to a curvature of the wall. Brief description of the drawings

[0036] Other features, details and advantages will become apparent from the detailed description below and from the analysis of the accompanying drawings, in which: Fig. 1

[0037] [Fig. 1] schematically illustrates a wall under construction and a climbing formwork according to an embodiment. Fig. 2

[0038] [Fig. 2] schematically illustrates a climbing formwork hip, in which a set of uprights is in a deployed position, according to one embodiment. Fig. 3

[0039] [Fig. 3] schematically illustrates the climbing formwork panel, in which the assembly of uprights is in a folded position, according to one embodiment. Fig. 4

[0040] [Fig.4] schematically illustrates a subset that can be implemented in the set of uprights, according to one embodiment. Fig. 5

[0041] [Fig.5] schematically illustrates an anchoring piece that can be implemented in the assembly of uprights according to one embodiment. Fig. 6

[0042] [Fig.6] schematically illustrates the climbing formwork panel and starting means according to one embodiment. Fig. 7

[0043] [Fig.7] illustrates the steps of a process for implementing the set of amounts. Description of the implementation methods

[0044] Figure 1 schematically illustrates a wall 10 under construction, in particular a concrete wall. The wall 10 has a circular cross-section and an evolving geometry, such as towers having the shape of hyperboloids of revolution. Such towers are, for example, water towers.

[0045] The construction of the wall 10 (also called the wall) is carried out using a climbing formwork 12. The wall 10 is constructed by pouring successive vertical sections, with the climbing formwork 12 resting on a section already poured and allowing the pouring of a new section. Once a new section has been poured and the concrete has hardened, the climbing formwork 12 can be raised to rest on the new section.

[0046] In practice, series of anchor rods 14 are embedded in the concrete of the wall 10. The series of anchor rods 14 are regularly spaced around the wall 10 under construction. Each series of rods 14 extends substantially vertically along the wall 10 (according to the direction of construction of the wall). The series of anchor rods The 14 anchor rods form anchor points for the climbing formwork 12. Advantageously, the anchor rods 14 eliminate the need for holes to be filled in the wall 10, and the watertightness of the wall 10 is improved. The climbing formwork 12 can be supported by the anchor rods 14 without drilling fixing holes in the wall 10.

[0047] The climbing formwork 12 essentially comprises suspended walkways 16 and hips 18. The walkways 16 allow people to circulate along the wall 10 during its construction. The hips 18 define an envelope into which concrete can be poured to form a section.

[0048] In the illustrated example, a walkway 16 and a formwork 18 are visible on an outside side of the wall 10. It should be noted, however, that a formwork and a walkway are also provided on an inside side of the wall 10. The concrete can be poured between the two haunches, on each side of the wall.

[0049] The walkway 16 can in particular take the form of a plurality of brackets 20 arranged regularly around the wall 10.

[0050] Each bracket 20 may include a rail 22 configured to engage with one or more anchor rods 14 of a series of rods (here, one rail 22 is engaged with two rods of a series). Advantageously, the brackets 20 are suspended directly from the wall, independently of the hips 18. The hips 18 can be manipulated independently of the brackets 20. For example, several sections of the wall 10 can be made before hoisting the walkway 16. The walkway 16 can be hoisted, for example, using a crane, and the rail 22 can slide along the wall 10 until it engages with new anchor rods 14.

[0051] Each console 20 may comprise a first platform 24 and a second platform 26, forming two levels. The platforms 24 and 26 may be hinged together to allow adjustment of the console 20's inclination relative to the vertical direction. Each platform 24 and 26 may be in contact with the wall 10 even if the wall 10 is inclined. This prevents the formation of gaps between the wall 10 and the platforms 24 and 26, which could be dangerous for personnel.

[0052] Furthermore, floors 28 can extend between the brackets 20 to connect them. The floors 28 can be extendable. When the diameter of the wall 10 is small, the floors 28 can overlap. When the diameter of the wall 10 is large, the floors 28 can be deployed. The extendable floors 28 can adapt to the changing diameter of the wall 10.

[0053] The hips 18 comprise sets of uprights 30 arranged regularly around the wall 10 and formwork panels 32 (not visible in [Fig. 1]) connecting the sets 30 together. The sets 30 provide support for the panels 32 and hold the panels 32 in place. The sets 30 can be fixed to the wall 10, in particular by the anchor rods 14. The panels 32 can to be inserted between sets 30.

[0054] The sets of uprights 30 can be separated by a distance D of between 0.70 m and 1.60 m, preferably 1.40 m around the wall 10. Such a distance D allows the concrete to be poured without deforming or breaking the panels 32. The length and shape, including the curvature, of the panels 32 can be adjusted according to the diameter of the wall section 10 under construction. The panels 32 are, in particular, wood panels or composite panels.

[0055] As more visible on [Fig.2], each set of uprights 30 comprises a first upright 34, a second upright 36 and a plurality of anchor pieces 38. The first and second uprights 24, 36 are movable between a deployed position and a folded position, by bearing on the anchor pieces 38.

[0056] In the deployed position, illustrated in [Fig. 2], the first upright 34 extends in line with the second upright 36 (substantially vertically). Here, the first upright 34 is above the second upright 36, but the deployed position could also correspond to the second upright 36 being above the first upright 34 (the first and second uprights 34, 36 are interchangeable). The first upright 34 can support the panels 32 for the construction of a wall section 10, and the second upright 36 can contribute to maintaining the first upright 24 by extending over a section already constructed.

[0057] More specifically, an upper portion 40a of the first upright 34 is mounted on a first anchor piece 38a, a lower portion 42a of the first upright 34 and an upper portion 40b of the second upright 36 are both mounted on a second anchor piece 38b (below the first anchor piece 38a in the vertical direction) and the lower portion 42b of the second upright 36 is mounted on a third anchor piece 38c (below the second anchor piece 38b, not visible on [Fig.2]).

[0058] The lower portion 42a of the first upright 34 and the upper portion 40b of the second upright 36, mounted on the second anchor piece 38b, form a first pivot joint 44. The rotation of the second upright 36 around a first axis of rotation X of the first pivot joint 44 allows it to move from the deployed position to the folded position, illustrated in [Fig.3].

[0059] In the folded position, the second upright 36 faces the first upright 34. The second upright 36 is folded onto the first upright 34 by rotation around the first axis of rotation X. The upper portion 40a of the first upright 34 and the lower portion 42b of the second upright 36 are mounted on the first anchor piece 38a, and the lower portion 42a of the first upright 34 and the upper portion 40b of the second upright 36 are mounted on the second anchor piece 38b.

[0060] The upper portion 40a of the first upright 34 and the lower portion 42b of the second upright 36 form a second pivot joint 46, a second axis of rotation Y of the second pivot joint 46 being parallel to the first axis of rotation X of the first pivot joint 44. The transition from the folded position to the deployed position is thus achieved by rotating the second upright 36 around the second axis of rotation Y of the second pivot joint 46. The second upright 36 then finds itself above the first upright 34. The first upright 34 becomes the second upright 36, and the second upright 36 becomes the first upright 34. The sequential reversal of the uprights 34, 36 allows the formwork panels to be raised, enabling the pouring of the next wall section.

[0061] An amount is subsequently described, which may be the first amount 34 or the second amount 36 of the set 30, with reference to [Fig.4].

[0062] The upright 34, 36 comprises a flat plate 48 extending along a main longitudinal direction, intended to come into contact with the concrete of the wall 10. Here, the flat plate 48 has a substantially rectangular shape. A height H of the flat plate 48, measured along the longitudinal direction, is between 550 mm and 750 mm, preferably 650 mm. A width 1 of the flat plate 48, measured along the direction normal to the longitudinal direction, is between 300 mm and 500 mm, preferably 400 mm. A thickness of the flat plate 48 is between 2 mm and 6 mm, preferably 4 mm. The dimensions of the flat plate 48 are chosen to give the upright sufficient lightness and flexibility to allow it to be repeatedly bent (for example, by a jack described in more detail later).

[0063] The upright 34, 36 includes the upper portion 40 intended to form the first pivot joint 44. The upper portion 40 projects from one face of the flat plate 48. The upper portion 40 here takes the form of an upper flange 50 extending in the longitudinal direction. The upper flange 50 is configured to frame a flange 80 of an anchor piece 38 and a lower flange 60 of the lower portion 42 of another upright (first or second upright). An upper hole 52 extends through the upper clevis 50, the upper hole 52 being configured to receive a pin axis 54 allowing the upper clevis 50 to be connected to the lower clevis 60 of the other upright and to the clevis 80 of the anchor piece 38. In the deployed position, the pin axis 54 and the interlocking of the clevises 50, 60, 80 form the first pivot connection 44.The upper bracket 50 may also include an upper locking pin 56, to lock the rotation of the upright around the first axis of rotation X, by inserting a first locking pin 58.

[0064] The 34, 36 assembly further includes the lower portion 42 intended to form the second pivot joint 46. The lower portion 42 projects from the flat plate 48, opposite the upper portion 40 in the longitudinal direction. The portion in The lower portion 42 takes the form of a lower slab 60 extending in the longitudinal direction. The lower slab 60 of the lower portion 42 is adapted to fit into the slab 80 of the anchor piece 38 and into the upper slab 50 of the upper portion 40 of another upright (first or second upright). A lower hole 62 extends through the lower clevis 60, the lower hole 62 being configured to receive the pin 54 which connects the lower clevis 60 to the upper clevis 50 of the other upright and to the clevis 80 of the anchor piece 38. In the folded position, the pin 54 and the interlocking of the clevises 50, 60, 80 form the second pivot joint 46. The lower clevis may also include a lower locking pin 64, to lock the rotation of the upright around the second axis of rotation Y by inserting a second locking pin 66.

[0065] Thus, each pivot joint 44, 46 is formed by the interlocking of an upper clevis 50, a lower clevis 60 and a clevis 80 of anchor piece 38. The insertion of the pin axis 54 allows the rotation of the uprights 34, 36, and the anchor piece 38 allows the support of the pivot joint (preventing other degrees of freedom of movement).

[0066] A jack 68 can extend along the longitudinal direction between the upper portion 40 and the lower portion 42. One end of the jack 68 can be fixed to the upper portion 40 and a second end of the jack 68 can be fixed to the lower portion 42 of the upright. The jack allows the flat plate 48 of the upright to be bent to form a curved wall slice 10. Each wall slice can be bent independently of the other slices. The curvature of each wall slice 10 makes it possible to form a continuous wall, without discontinuities between the slices. The bending can also be inward or outward, making it possible to form a wall 10 of complex geometry.

[0067] The assembly further comprises a plurality of fins 70. As illustrated, two fins 70 project from each side of the top of the upper portion 40, two fins 70 project from each side of the bottom of the upper portion 40, and two fins 70 project from either side of the lower portion 42. The fins 70 are, in particular, arms at the ends of which a nut 72 may be provided. The nut 72 is adapted to receive a screw 74 for installing the formwork panels 32.

[0068] The anchoring parts 38 are described below.

[0069] The anchor pieces 38 are intended to be fixed to each anchor rod 14 of a series of anchor rods. The anchor pieces 38 are adapted to allow the uprights 34, 36 to be fixed against the wall 10.

[0070] As more clearly seen in [Fig. 5], each anchor piece 38 comprises a sheet metal plate 76. The sheet metal plate 76 is intended to be pressed against the wall 10. A through hole 78 is formed in the sheet metal plate 76, allowing the passage of the anchor rod 14. The through hole 78 can be threaded to engage with the anchor rod 14. In addition, a bolt (not shown) can be screwed onto the anchor rod 14 to press the sheet 76 against the wall 10.

[0071] Each anchor piece 38 further includes the clevis 80 projecting from the sheet metal 76. The clevis 80 forms a support for the fixing of the first upright 34 or the second upright 36. The clevis 80 forms a fixed part of the first pivot joint 44 or the second pivot joint 46. The clevis 80 can in particular be fitted between the upper clevis 50, be sandwiched between the lower clevis 60 and between an upper clevis 50 of another upright, or frame the lower clevis 60.

[0072] The bracket 80 includes a pivot axis 82. When an upper portion 40 of the upright frames the bracket 80 of the anchor piece 38, the pivot axis 82 coincides with the upper holes 52 to allow the insertion of the pin axis 54. When a lower portion 42 of the upright frames the bracket 80 of the anchor piece 38, the pivot axis 82 coincides with the lower holes 62 to allow the insertion of the pin axis 54. The pivot axis 82 allows the lower and upper portions of the uprights to be fixed and the first and second pivot joints 44, 46 to be formed.

[0073] The clevis 80 further includes a first hole 84. When an upper portion 40 of the upright frames the clevis 80 of the anchor piece 38, the first hole 84 coincides with the upper locking axis 56. The insertion of the first locking pin 58 allows the rotation of the upright to be locked around the first axis of rotation X.

[0074] In addition, the clevis 80 includes a second hole 86. When a lower portion 42 of the upright frames the clevis 80 of the anchor piece 38, the second hole 86 coincides with the lower locking axis 64. The insertion of the second locking pin 66 allows the rotation of the upright to be locked around the second axis of rotation Y.

[0075] The assembly may also include starting means 81 (see [Fig. 6]). The starting means 81 essentially comprise a rail 82 and a jack 85.

[0076] The rail 82 is intended to extend along a floor, that is to say, in a direction substantially normal to the wall 10. One end of the rail 82 is intended to be fixed to the lower portion 40 of the second upright 36 (the second upright being at floor level), for example by inserting a pin 86 through the rail 82 and the lower portion 40. The pin 80 can, in particular, be inserted into the lower hole 62 of the lower portion 40, which is also intended to form the second pivot joint 46. The fixing of the rail 82 does not complicate the construction of the upright.

[0077] A second end of rail 82, opposite the first end, has a Series of transverse holes 88. The transverse holes 88 are configured to receive a fixing pin 90 of the cylinder 85. The series of transverse holes 88 allows adjustment of the position of the cylinder 85.

[0078] The jack 84 extends between one of the transverse holes 88 of the rail 82 and the upper portion 40 of the upright 36. The jack 85 allows the angle formed between the upright and the rail 82 to be modified from the first section of the wall 10 (from the ground). The wall 10 can be inclined from the first section.

[0079] A method of using the set of amounts is described below, with reference to [Fig.7].

[0080] Initially, the first upright 34 extends above the second upright 36 along the vertical direction of construction of the wall 10. The upper portion 40a of the first upright 34 is mounted on the first anchor piece 38a and is locked by the upper locking pin 56. The lower portion 42a of the first upright 34 and the upper portion 40b of the second upright 36 are mounted on the second anchor piece 38b, and the two portions 42a and 40b are locked by their respective locking pins. The lower portion 42b of the second upright 36 is mounted on the third anchor piece 38c, and the lower portion is locked by the lower locking pin 64.

[0081] A first step 100 comprises forming the first pivot joint 44. The first pivot joint 44 can be formed by unlocking the upper portion 40b of the second upright 36 from the second anchor piece 38b and by unlocking the lower portion 42b of the second upright 36 from the third anchor piece 38c. The first locking pin 58 of the upper portion 40b of the second upright 36 can be removed from the upper locking pin 56. The second locking pin 66 of the lower portion 42b of the second upright 36 can be removed from the lower locking pin 64. Then, the first upright is free to rotate about the first axis of rotation X.

[0082] A second step 200 involves rotating the second upright 36 around the first axis of rotation X, via the first pivot joint 44, to reach the folded position. The second upright 36 faces the first upright 34. The assembly is in the folded position.

[0083] A third step 300 comprises forming the second pivot joint 46. The second pivot joint 46 can be formed by fitting the lower clevis 60 of the lower portion 42b of the second upright 36 into the clevis 80 of the first anchor piece 38a and the upper clevis 50 of the upper portion 40a of the first upright 34. The pin 54 forming the first pivot joint 44 can be removed from the upper portion 40b of the second upright 36 and inserted into the lower portion 42b of the second upright 36 (or another pin 54). can be inserted).

[0084] A fourth step 400 includes rotating the second upright 36 around the second axis of rotation Y, via the second pivot joint 46.

[0085] A fifth step 500 comprises returning to the deployed position, in which the second upright 36 extends over the first upright 34 (uprights 34 and 36 are reversed). The upper portion 40b of the second upright 36 can be mounted on a new anchor piece 38, above the first anchor piece 38a, and locked by the upper locking pin 56. The lower portion 42b of the second upright 36 can be locked by the lower locking pin 64 to the first anchor piece 38a.

[0086] A sixth step 600 may include bending each of the uprights according to the curvature of the wall slice 10. Each upright may be bent using the jack 68 of each upright. The geometry of the wall may be complex and modified for each wall slice 10.

[0087] The steps described above can be carried out successively to allow the lifting of the uprights along the wall 10.

[0088] When a first section of wall 10 is to be made, an initial step may include mounting the starting means 81 on the second upright 36.

Claims

Demands

1. Upright (34; 36) for climbing formwork (12) comprising: - a flat plate (48) extending along a principal longitudinal direction; - an upper portion (40) projecting from the flat plate (48), the upper portion (40) being configured to form a first pivot joint (44) with a lower portion (42) of a second upright (36; 34); the upper portion (40) comprising an upper cap (50) configured to receive a pin axis (54); and - a lower portion (42) projecting from the flat plate (48) opposite the upper portion (40) along the longitudinal direction, the lower portion (42) being configured to form a second pivot joint (46) with an upper portion (40) of the second upright (36; 34);34), the lower portion (42) comprising a lower clevis (60), the lower clevis (60) being adapted to fit into the upper clevis (50) of the second upright, the lower clevis (60) being configured to receive the pin axis (54), the upper clevis (50) comprising an upper locking axis (56), the upper locking axis (56) being configured to block the rotation of the upright around the first axis of rotation (X) of the first pivot joint (44), and the lower clevis (60) comprising a lower locking axis (64) to block the rotation of the upright around the second axis of rotation (Y) of the second pivot joint (46).;

2. Amount (34; 36) according to claim 1, wherein a first axis of rotation (X) of the first pivot joint (44) extends transversely to the longitudinal direction, and a second axis of rotation (Y) of the second pivot joint (46) is parallel to the first axis of rotation (X).

3. Amount (34; 36) according to any one of the preceding claims, further comprising a cylinder (68) extending in the longitudinal direction between the upper portion (40) and the lower portion (42).

4. Amount (34; 36) according to any one of the preceding claims, further comprising at least one pair of fins (70) projecting from either side of the lower portion (42) and / or the upper portion (40), each fin (70) being configured to allow support of a formwork panel (32) of climbing formwork (12).

5. Set (30) comprising a first amount (34) and a second amount (36), each amount conforming to any one of claims 1 to 4, the first and second amounts (34, 36) being movable between: - a deployed position in which the first amount (34) extends in line with the second amount (36); - a folded position in which the first amount (34) faces the second amount (36), the movement from the deployed position to the folded position being effected by the first pivot joint (44) and the movement from the folded position to the deployed position being effected by the second pivot joint (46).

6. Assembly (30) according to claim 5, further comprising a plurality of anchoring pieces (38), each anchoring piece (38) being configured to mount a post (34, 36) on a wall (10) under construction, the anchoring piece (38) comprising: - a sheet (76) intended to extend in the continuation of the flat plate (48) of the post (34; 36); - a through hole (78) formed in the sheet (76), the through hole (78) being configured to engage with an anchor rod (14) embedded in the wall (10); - a slab (80) projecting from the sheet metal (76), the slab being configured to form a support for the lower portion (40) and the upper portion (42) of the upright (24; 36), an anchoring piece (38) being provided at each end of the first upright (34) and the second upright (36).

7. Assembly according to the preceding claim, wherein the clevis (80) comprises a first hole (84) configured to coincide with the upper locking axis (56) and a second hole (86) configured to coincide with the lower locking axis (64).

8. Assembly (30) according to any one of claims 5 to 7, further comprising starting means (81) configured to cooperate with a post (34; 36) to carry out a first section of a wall (10) under construction, the starting means (81) comprising: - a rail (82) configured to extend along a floor from an end mounted on the lower portion (42) of the post, and - a jack (84) extending between an end of the rail (82) located away from the lower portion (42) of the post and the upper portion (40) of the post, the jack (84) being configured to adjust an angle formed by the upright and the rail, the starting means (81) being mounted on the first upright (34).

9. Climbing formwork (12) comprising a plurality of assemblies (30) according to any one of claims 5 to 8, arranged regularly around a wall (10) under construction and formwork panels (32) connecting the assemblies (30) to each other.

10. Method of constructing a wall (10) using at least one assembly (30) according to any one of claims 5 to 8, the method comprising: - forming the first pivot joint (44) between the first upright (34) and the second upright (36); - pivoting the first upright (34) around the second upright (36) by the first pivot joint (44); - forming the second pivot joint (46) between the first upright (34) and the second upright (36); - pivoting the first upright (34) around the second upright (36) by the second pivot joint (46).

11. Method according to claim 10, further comprising: - bending at least one of the first and second uprights (34; 36) according to a curvature of the wall (10).

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