Suspended scaffolding for the construction of concrete walls
The four-bar mechanism console for suspended scaffolding addresses the inefficiencies of traditional systems by adapting to inclined walls and enabling modular expansion, ensuring safe and efficient construction of complex geometries.
Patent Information
- Application Number
- FR2023006231
- Authority / Receiving Office
- FR · FR
- Patent Type
- Applications
- Current Assignee / Owner
- Filing Date
- 2023-06-16
- Publication Date
- 2024-12-20
AI Technical Summary
Suspended scaffolding systems are inadequate for constructing walls with evolving geometries, such as circular cross sections and hyperboloids of revolution, due to the generation of dangerous spaces and inefficiencies in lifting and securing the assembly, which compromises operator safety and construction efficiency.
A console for suspended scaffolding comprising a four-bar mechanism with rotatable beams and a jack system that allows the scaffolding to adapt to inclined walls, enabling independent hoisting and modular extension, ensuring safe and efficient construction of complex geometries.
The console facilitates the construction of walls with varying inclinations and geometries by reducing lifting loads, minimizing dangerous spaces, and enhancing operator safety through modular expansion and secure anchoring, thus improving construction efficiency and safety.
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Abstract
Description
Title of the invention: Suspended scaffolding for the construction of concrete walls technical field
[0001] The present disclosure falls within the field of suspended scaffolding for the construction of concrete walls. Prior art
[0002] Suspended scaffolding is typically installed cantilevered over a wall under construction. Suspended scaffolding serves both as a work platform for operators and as protection at the bottom of the roof slope.
[0003] Suspended scaffolding generally comprises a bracket, platforms, guardrails, and wall-fixing systems. Prior art brackets provide support elements on the structure and allow the platforms to be positioned perpendicular to the wall. Guardrails ensure the safety of operators when moving on the platforms. The wall-fixing system secures the brackets to the wall.
[0004] When the suspended scaffolding is used for the construction of a concrete wall in successive sections, the scaffolding further comprises a climbing formwork. The assembly formed by the formwork and the scaffolding is hoisted upwards by means of a crane for the construction of each successive section of the wall.
[0005] However, the formwork and scaffolding assembly is heavy. A significant load is applied to the wall fixing systems. The fixing systems must support the weight of the formwork and scaffolding.
[0006] Furthermore, the entire assembly must be hoisted upwards for each section of the wall. It is not possible to complete several sections by simply raising the formwork and then, once several sections have been completed, raising the scaffolding.
[0007] Furthermore, suspended scaffolding is generally not suitable for constructing walls with a circular cross-section and evolving geometry, such as towers with a hyperboloid shape. Indeed, when the wall is inclined, a dangerous gap may exist between the wall and the platforms of different levels of the scaffolding. According to current regulations, this gap may not exceed 20 cm. Moreover, when the wall has a diameter that increases along the direction of construction, the platform area may become insufficient to extend all around the wall, further creating dangerous gaps for the operator between the scaffolding platforms. Summary
[0008] The present disclosure improves the situation.
[0009] A bracket for scaffolding suspended on a wall under construction is proposed, comprising: - a first beam and a second beam, the first and second beams extending parallel to each other, the first and second beams being configured to extend substantially parallel to the ground, - a rail connecting the first and second beams, the rail being adapted to extend along the wall under construction, the rail being fixed to the first beam so as to be mobile in rotation relative to the first beam along a first axis of rotation and fixed to the second beam so as to be mobile in rotation relative to the second beam along a second axis of rotation, - a connecting bar linking the first and second beams at a distance from the rail, the connecting bar extending substantially parallel to the rail, the connecting bar being fixed to the first beam so as to be movable in rotation relative to the first beam along a third axis of rotation and fixed to the second beam so as to be movable in rotation relative to the second beam along a fourth axis of rotation, - a jack extending between the connecting bar and the first beam, the jack being configured to control the simultaneous rotation of the rail and the connecting bar around the axes of rotation.
[0010] Such a bracket forms a four-bar mechanism. The jack can rotate the connecting bar around the third axis of rotation, thereby rotating the rail around the first and second axes of rotation. Consequently, when the wall is inclined, the rail can also be inclined to extend along the wall, and the beams can extend parallel to the ground to form different scaffolding levels. The beams can come into contact with the wall even if it is inclined. This makes it possible to avoid creating a gap between the wall under construction and the scaffolding. Operator safety is thus improved.
[0011] Furthermore, the console of this disclosure is of very simple construction. An operator simply needs to actuate the hydraulic cylinder to change the tilt of the console.
[0012] When constructing the wall in successive sections, the rail allows the bracket to be lifted upwards, notably by being pulled by a crane. Here, the formwork is not fixed to the bracket. The bracket is unsupported by formwork, so it can be lifted independently of it. Several successive wall sections can be constructed by the formwork climbing before the bracket is lifted. The load to be lifted upwards along the wall is reduced.
[0013] Furthermore, the positioning of the jack between the first beam and the connecting bar is such that it does not impede the movement of operators. In practice, the jack is in a corner opposite the wall, between two levels of the cantilever (defined by the first and second beams). The jack does not obstruct the passage of operators moving within the climbing scaffold.
[0014] Optionally, the rail and the first beam form an angle between 60° and 120°. This makes it possible to construct walls with an inclination of up to 30° without creating a dangerous space for operators between the wall under construction and the bracket. The 30° angle can be an outward or inward slope of the wall.
[0015] The rail may include: - two parallel bars which define an opening between them, the opening being configured to frame at least one anchor rod embedded in the wall under construction; - at least one ratcheting mechanism configured not to engage the anchor rod when the bracket is hoisted in the direction of wall construction, and to block the passage of the anchor rod in the opposite direction to the wall construction.
[0016] Thus, raising the bracket is particularly easy. It is not necessary to screw or unscrew the bracket from the wall. The bracket can simply be lifted upwards. The rails allow the platform to slide along the wall. The locking mechanism allows the bracket to be raised but prevents it from being lowered.
[0017] The rail may include at least two snap-lock mechanisms, each snap-lock mechanism being configured to lock an anchor rod embedded in the wall under construction. Thus, the load of the bracket is distributed between at least two anchor rods, increasing the security of the bracket's attachment to the wall under construction.
[0018] The console can understand: - a first floor mounted on one side of the first or second beam to project laterally from said first or second beam; and - a second floor mounted on a second side of the first or second beam, opposite the first side, in which the second floor is mounted pivoting on said first or second beam around a fifth axis of rotation, the fifth axis of rotation being parallel to the principal direction of extension of said first or second beam.
[0019] Thus, the bracket is particularly well-suited to the construction of a wall with evolving geometry, for example, a water tower. Indeed, when the If the distance between two consecutive brackets of the suspended scaffold is significant, the second platform can be deployed to connect the adjacent brackets. When the distance is reduced, the second platform can rotate around its fifth axis of rotation to overlap the first platform of the adjacent bracket. In other words, the platforms of neighboring brackets can overlap when the distance between them is reduced. Furthermore, storing the console is made easier. The second shelf can be folded down by rotating it around the fifth axis of rotation to reduce the console's footprint.
[0020] The bracket may further include an extension floor configured to fit onto an edge of the second floor opposite said first or second beam. Thus, the bracket is particularly well-suited to the construction of a wall with a variable geometry. Indeed, it is possible to increase the surface area of the bracket by fitting the extension floor onto the first floor. Two brackets can be connected to each other even when the distance between the two brackets increases. The bracket is modular.
[0021] The first floor, the second floor and, where applicable, the extension floor, can fan out from the first or second beam. Thus, the cantilever is particularly well-suited to the construction of walls with a circular cross-section. The cantilever extends radially outwards from the wall to allow for operator access. No gaps that could be dangerous for operators are created between the floors.
[0022] The bracket further includes, for example, a filling floor configured to fit onto an edge of the second floor intended to face the wall under construction. This makes it possible to fill any residual gap between the wall and the second floor. The bracket is modular.
[0023] A guardrail can be mounted on each edge of the first or second floor away from the wall under construction. The guardrail provides protection for operators moving on the cantilever floors. Operator safety is ensured.
[0024] The bracket may further include a ladder configured to allow an operator to ascend or descend between the first and second beams and / or a walkway configured to allow an operator to pass from one side of the wall under construction to the opposite side by going over the wall under construction. Thus, the installation of a ladder allows operators to move easily along a suspended scaffold formed by the brackets. The installation of a walkway further allows passage on either side of the wall.
[0025] According to another aspect, in combination with the foregoing, a suspended scaffold is proposed comprising a plurality of brackets as defined above at the top, the brackets are arranged regularly around a wall under construction. Brief description of the drawings
[0026] Other features, details and advantages will become apparent upon reading the detailed description below, and upon analysis of the accompanying drawings, on which: Fig.l
[0027] [Fig.1] schematically illustrates a perspective view of a scaffold suspended on a wall under construction. Fig. 2A, Fig. 2B and Fig. 2C
[0028] [Fig.2A] schematically illustrates a side view of a bracket that can be implemented in the suspended scaffold of [Fig.1].
[0029] [Fig.2B] schematically illustrates a side view of the console of [Fig.2A] in a first inclined position.
[0030] [Fig.2C] schematically illustrates a side view of the console of [Fig.2A] in a second inclined position. Fig. 3
[0031] [Fig.3] schematically illustrates in perspective a first detail of the console of the [Fig.2A]. Fig. 4A and Fig. 4B
[0032] [Fig.4A] schematically illustrates a perspective view of the console of [Fig.2A] in a deployed position.
[0033] [Fig.4B] schematically illustrates a perspective view of the console of [Fig.2A] in a folded position. Fig. 5
[0034] [Fig.5] schematically illustrates a perspective view of the underside of a second detail of the console in [Fig.2A]. Fig. 6
[0035] [Fig.6] schematically illustrates a perspective view from below the scaffolding suspended from [Fig.1] in which a plurality of consoles overlap. Fig. 7
[0036] [Fig.7] schematically illustrates a perspective view of the console of the [Fig.2A] on which is mounted an extension floor and a filling floor. Fig. 8A, Fig. 8B
[0037] [Fig.8A] schematically illustrates in perspective the fitting of the extension floor of [Fig.7] onto the bracket of [Fig.2A].
[0038] [Fig.8B] schematically illustrates in perspective the extension floor of [Fig.7] fitted onto the console of [Fig.2A]. Fig. 9
[0039] [Fig.9] schematically illustrates in perspective a console that can be put in work in the suspended scaffolding of [Fig.1] including a ladder. Fig. 10
[0040] [Fig. 10] schematically illustrates in perspective a bracket that can be implemented in the suspended scaffolding of [Fig. 1] including a walkway. Description of embodiments
[0041] Figure 1 schematically illustrates a suspended scaffold 10 for the construction of a wall 12. The wall 12 here 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.
[0042] The construction of the wall 12 (also called the wall 12) is carried out using a climbing formwork 14. The climbing formwork 14 comprises hips 16 mounted on either side of the wall 12. The wall 12 is constructed by pouring concrete between the hips 16 of the formwork 14 to form a slice of the wall 12. The climbing formwork 14 rests on a slice already completed to allow the pouring of a new slice. Once a new slice has been poured and the concrete has hardened, the climbing formwork 14 can be raised to rest on the new slice.
[0043] Here, the climbing formwork 14 comprises pairs of uprights 17 as described in French patent application FR 2301380. A first upright of the pair of uprights 17 is configured to rest on a section of wall already constructed. A second upright projects from the already constructed section to serve as a base for mounting the hips 16. The first upright folds down onto the second upright, so that the first upright can be pivoted to face the second upright. The first upright can also be extended so that it is positioned above the second upright in the direction of wall construction. The first and second uprights are thus reversed. The successive reversal of the uprights of the pair of uprights 17 allows the climbing formwork to be erected along the wall 12. The climbing formwork 14 can be hoisted to construct a new section of wall without requiring the use of a crane or hoisting equipment..
[0044] The scaffolding 10 is suspended from the wall 12 to form a work platform for the operators 18. The scaffolding 10 allows the operators 18 to access the climbing formwork 14 and to move along the wall under construction 12. The scaffolding 10 here comprises two working levels El, E2. A first level El is located near the top of the wall 12, and a second level E2 is below the first level El in the direction of construction of the wall 12.
[0045] In the illustrated example, a suspended scaffold 10 is visible on an outside side of the wall 12. It should be noted, however, that a suspended scaffold 10 is also planned on an inner side of wall 12. It is thus possible to access the formwork panels 16 of formwork 14 from both opposite sides of wall 12.
[0046] As illustrated, the suspended scaffold 10 comprises a plurality of brackets 20 arranged regularly around the wall under construction 12. Each bracket 20 is fixed to the wall 12 and participates in forming the two floors E1, E2 on which the operators 18 can move.
[0047] As more clearly seen in Figures 2A to 2C, each bracket 20 essentially forms a four-bar mechanism. Each bracket 20 comprises a first and a second beam 24, 26, a rail 22 and a connecting bar 28.
[0048] The first and second beams 24, 26 extend parallel to each other. The first and second beams 24, 26 are configured to extend parallel to the ground when the bracket is mounted on the wall under construction 12. The first beam 24 belongs to floor E1 while the second beam 26 belongs to floor E2. The rail 22 and the connecting bar 28 connect floors E1 and E2. The first and second beams 24 and 26 are superimposed on each other, at a distance from each other.
[0049] The rail 22 is adapted to extend along the wall 12 under construction, according to the construction direction of the wall 12. The rail 22 connects the first and second beams 24 and 26. Each end of the rail 22 is rotatably mounted on one of the beams 24, 26. Here, a first end 22A of the rail 22 is rotatably mounted on the first beam 24 and a second end 22B of the rail 22 (opposite the first end 22A) is rotatably mounted on the second beam 26.
[0050] The connecting bar 28 also connects the first and second beams 24, 26, extending parallel to the rail 22, at a distance from it. Each end of the connecting bar 28 is rotatably mounted on one of the first and second beams 24, 26. Here, a first end 28A of the connecting bar 28 is rotatably mounted on the first beam 24 and a second end 28B of the connecting bar 28 (opposite the first end 28A) is rotatably mounted on the second beam 26.
[0051] The console 20 thus comprises four axes of rotation parallel to each other: - a first axis of rotation XI between the first beam 24 and the first end 22A of the rail 22, - a second axis of rotation X2 between the second beam 26 and the second end 22B of the rail 22, - a third axis of rotation X3 between the first beam 24 and the first end 28A of the connecting bar 28, - a fourth axis of rotation X4 between the second beam 26 and the second end 28B of the connecting bar 28.
[0052] Thus, even when the rail 22 does not extend in a vertical direction (i.e., the wall 12 is inclined), the first and second Beams 24, 26 can extend parallel to the ground by rotating around the axes of rotation XI, X2, X3, X4 of the rail 22 and the connecting bar 28. Each first or second beam 24, 26 is then adapted to form a work platform for the operators. It should be noted that the rotation of the rail 22 and the connecting bar 28 around the axes of rotation XI, X2, X3, and X4 also causes the first and second beams 24, 26 to move along their principal plane of extension in two opposite directions. The rotation of the rail 22 and the connecting bar 28 thus allows the first and second beams to conform to the wall 12 even when the wall 12 is inclined.
[0053] Figure 2A illustrates the case where the wall 12 is vertical. The angle α formed between the rail 22 and the first beam 24 is 90°, and the angle θ formed between the rail 22 and the second beam 26 is 90°. Figure 2B illustrates the case where the wall 12 is inclined outwards. The angle α formed between the rail 22 and the first beam 24 is 120°, and the angle θ formed between the rail 22 and the second beam 26 is 60° in this example. Figure 2C illustrates the case where the wall 12 is inclined inwards. The angle α formed between the rail 22 and the first beam 24 is 60°, and the angle θ formed between the rail 22 and the second beam 26 is 120° in this example. In general, the angle formed between rail 22 and the first beam 24 is between 60° and 120°. Due to the mechanism connecting the first and second beams 24, 26, the angle [3 formed between rail 22 and the second beam 26 is also between 60° and 120°.The bracket 20 can thus be used to create walls 12 of various geometries. The wall 12 can be inclined inwards or outwards. The angle of the wall 12 with respect to the plane perpendicular to the ground can be between -30° and 30°.
[0054] As illustrated, the bracket 20 includes a jack 30 configured to adjust the angles a, [3] between the rail 22 and each of the first and second beams 24, 26. Here, a cylinder of the jack 30 is pivotally mounted on the connecting bar, and a rod of the jack 30 is pivotally mounted on a lower surface of the first beam 24. The axes of rotation of the jack are parallel to the axes of rotation XI-X4 between the first and second beams 24, 26, the rail 22 and the connecting bar 28. Thus, by moving the rod in the cylinder, the angle formed between the rail 22 and the first beam 24 (and consequently the second beam 26) is adjusted.
[0055] The jack 30 is here mounted in a corner of the bracket 20 opposite the rail 22. As illustrated, the jack 30 is in an upper corner of the bracket 20, under the first floor EL. The positioning of the jack 30 does not hinder operators moving on the suspended scaffold 10. There is no risk of tripping over a jack 30, nor that the jack 30 will hinder the handling of the climbing formwork.
[0056] Fig. 3 illustrates in more detail the rail 22 of the console 20. As illustrated, the rail 22 comprises two parallel bars 32 and a ratcheting mechanism 34.
[0057] The two parallel bars 32 define an opening 36 between them. The opening 36 The space between the two parallel bars 32 is configured to frame an anchor rod 38 embedded in the wall 12. In practice, a series of anchor rods 38 extends along the wall under construction 12, allowing the climbing formwork 14 to be fixed, here the pairs of uprights 17 of the climbing formwork 14. The two parallel bars 32 can slide along the wall 12 on either side of the series of anchor rods 38. The parallel bars 32 can be connected to each other by connectors 40 which do not impede the passage of the anchor rods 38 in the opening 36 between the two parallel bars 32.
[0058] The snap-lock mechanism 34 is configured to allow the passage of the anchor rods 38 when the bracket 20 is raised in the direction of construction of the wall 12 (i.e., upwards), but to block the passage of the anchor rods 38 in the opposite direction. Thus, the snap-lock mechanism 34 makes it possible to fix the bracket 20 to the wall under construction 12.
[0059] Here, the locking mechanism 34 takes the form of an L-shaped piece rotatably mounted in a hole 42 formed in one of the parallel bars 32. A first arm 44 of the L-shaped piece extends through the opening 36 between the two parallel bars 32. A second arm 46 of the L-shaped piece extends perpendicularly to the first arm 44 and is configured to abut against the parallel bar 32. When the bracket 20 is hoisted in the direction of construction of the wall 12, the L-shaped piece is free to rotate about its axis of rotation. The bracket 20 can be raised freely upwards. When the bracket 20 is released, the rotation of the L-shaped piece is blocked by the second arm 46 of the L-shaped piece, which abuts against the bar 32.
[0060] Preferably, the rail 22 comprises a plurality of snap-lock mechanisms 34, for example two or three mechanisms 34. The load of the bracket 20 can thus be distributed over several anchor rods 38 embedded in the wall 12.
[0061] Furthermore, the bracket 20 includes a plurality of platforms. The platforms are mounted on each first or second beam 24, 26, extending on either side of each first or second beam 24, 26. The platforms are configured to extend parallel to the ground and thus to form surfaces on which operators can move. Each platform can, for example, be formed of a frame and planks filling the spaces in the frame.
[0062] Here, each floor extends outwards from the beam to which it is attached. When the bracket 20 is suspended, the floors extend radially outwards from the wall 12. Such floors are particularly well-suited to walls 12 with a circular cross-section.
[0063] The floors mounted on the first beam 24 are described below, but the same floors are mounted on the second beam 26. The floors mounted on the first and second beam 24, 26 are identical.
[0064] A first floor 48 is mounted on one side of the first beam 24. The first floor 48 is fixed to the first beam 24, for example by bolting.
[0065] A second floor 50 is mounted on one side of the first beam 24 opposite the first floor 48. The second floor 50 is pivotally mounted on the first beam 24 about a fifth axis of rotation Y, the fifth axis of rotation Y extending parallel to the beam 24. The second floor 50 is movable between a deployed position ([Fig. 4A]) in which the second floor 50 extends in line with the first floor 48 and a folded position ([Fig. 4B]) in which the second floor 50 extends perpendicularly to the first floor 48. The transition from the folded position to the deployed position is achieved by rotation about the fifth axis of rotation Y. The first beam 24 may include stops 52 on its lower surface to lock the second floor 50 in the deployed position (see [Fig. 5]).
[0066] As more clearly seen in [Fig. 6], the rotating mounting of the second platform 50 on the first beam 24 allows the platforms of adjacent cantilevers of the suspended scaffold to overlap. When the distance between two consecutive cantilevers is small, for example when the circular wall 12 has a small diameter, the second platform 50 can rotate about its axis of rotation Y to overlap at least partially the first platform 48 of the adjacent cantilever 20. The first platform 48 may include openings 84 so as not to interfere with the stops 52 of the adjacent cantilever 20.
[0067] Referring to Figures 7 and 8, the bracket 20 can further include an extension floor 54. The extension floor 54 is configured to fit into an edge of the second floor 50 opposite the first beam 24, extending in line with the second floor 50. Thus, the extension floor 54 can be added to the bracket 20 when the distance between adjacent brackets 20 becomes significant. For example, the extension floor 54 can be added when the diameter of a circular wall section becomes large. The bracket 20 is suitable for constructing towers with large diameters.
[0068] Here, the extension floor 54 comprises two pieces 54A, 54B which fit into the second floor 50. The two pieces 54A, 54B facilitate the mounting of the extension floor 54 onto the second floor 50. However, the extension floor 54 could also be in one piece or in more than two pieces.
[0069] The extension floor 54 includes a tongue-and-groove portion 56. The tongue-and-groove portion 56 includes a profiled section 58 with a cross-section corresponding to a beam 60 forming reinforcement of the second floor 50. The profiled section 58 can be interlocked with the beam 60 of the second floor 50. The tongue-and-groove portion 56 It further includes a tongue 62 projecting from the profiled section 58. The tongue 62 is adapted to be inserted into a free space 64 between the beam 60 and a board 66 of the second floor 50, so as to extend over a lower surface of the second floor 50 when the profiled section 58 is fitted onto the beam 60. The tongue 62 allows the extension floor 54 to be held in a position extending the second floor 50.
[0070] The bracket 20 may include a filling floor 68. The filling floor 68 is configured to fit into the second floor 50 to extend the second floor 50 and the extension floor 54 towards the wall under construction 12. The filling floor 68 allows any gap formed between the second floor 50, the extension floor 54, and the wall 12 under construction to be filled. The filling floor 68 may include a portion with a fitting to fit onto the second floor 50 in a similar manner to the extension floor 54. In particular, the filling floor 68 is fitted onto an edge of the second floor 50 intended to face the wall 12 when the scaffolding 10 is suspended.
[0071] A guardrail 70 can be mounted on each of the first and second platforms 48, 50. Each guardrail 70 is mounted on an edge of the platform 48, 50 that will be opposite the wall 12 under construction when the scaffolding 10 is suspended. The guardrails 70 provide protection for the operators 18, limiting the risk of falls.
[0072] Here, the guardrail 70 mounted on the first floor 48 can comprise a fixed guardrail portion 72 and a pivoting guardrail portion 74 around the fixed guardrail portion 72. When the extension floor 54 is mounted on a neighboring bracket 20, the pivoting guardrail portion 74 can be pivoted around the fixed guardrail portion 72 to form a guardrail 70 of the extension floor 54 of the neighboring bracket 20. The entire floor El, E2 is protected by guardrails 70 (see [Fig. 1]).
[0073] In the example illustrated in [Fig. 9], the bracket 20 includes a ladder 76. The ladder 76 allows operators 18 to move between the two levels E1, E2 of the bracket 20. The ladder 76 is pivotally mounted on the first platform 48 of each of the first and second beams 24, 26 along two axes of rotation X5, X6 parallel to the first, second, third, and fourth axes of rotation XI-X4. The ladder 76 can then connect the two levels of the scaffolding regardless of the angle of inclination of the wall 12, by pivoting around the two axes of rotation X5 and X6. The ladder 76 can extend parallel to the rail 22 and the connecting bar 28.
[0074] In the example of [Fig. 10], the bracket 20 further includes a walkway 78. The walkway 78 can rest on a bracket 20 mounted on either side of the wall 12. The walkway 78 allows the two opposite sides of the wall 12 to be connected. The Operators 18 can reach both sides of wall 12 by passing through walkway 78.
Claims
Claims
1. Console (20) for suspended scaffolding (10) on a wall under construction (12) comprising: - a first beam (24) and a second beam (26), the first and second beams (24, 26) extending parallel to each other, the first and second beams (24, 26) being configured to extend substantially parallel to the ground, - a rail (22) connecting the first and second beams (24, 26), the rail (22) being adapted to extend along the wall under construction (12), the rail (22) being fixed to the first beam (24) so as to be movable in rotation relative to the first beam (24) along a first axis of rotation (X1) and fixed to the second beam (26) so as to be movable in rotation relative to the second beam (26) along a second axis of rotation (X2), - a connecting bar (28 ... beams (24, 26) at a distance from the rail (22),the connecting bar (28) extending substantially parallel to the rail (22), the connecting bar being fixed to the first beam (24) so as to be movable in rotation relative to the first beam (24) along a third axis of rotation (X3) and fixed to the second beam (26) so as to be movable in rotation relative to the second beam (26) along a fourth axis of rotation (X4), - a jack (30) extending between the connecting bar (28) and the first beam (24), the jack (30) being configured to control the simultaneous rotation of the rail (22) and the connecting bar (28) around the axes of rotation (X1, X2, X3, X4).,
2. Console (20) according to claim 1, wherein the rail (22) and the first beam (24) form an angle (a) between 60° and 120°.
3. Console (20) according to claim 1 or 2, in which the rail (22) comprises: - two parallel bars (32) which define between them an opening (36), the opening (36) being configured to frame at least one anchor rod (38) embedded in the wall under construction (12); - at least one latching mechanism (34) configured not to engage the anchor rod (38) when the console (20) is hoisted in the direction of construction of the wall (12), and to block the passage of the anchor rod (38) in the direction opposite to the construction of the wall (12).
4. Console (20) according to claim 3, in which the rail (22) comprises at least two ratchet mechanisms (34), each ratchet mechanism (34) being configured to block an anchor rod (38) embedded in the wall under construction (12).
5. Console (20) according to any one of the preceding claims, comprising: - a first floor (48) mounted on a first side of the first or second beam (24, 26) to project laterally from said first or second beam (24, 26); and - a second floor (50) mounted on a second side of the first or second beam (24, 26), opposite the first side, wherein the second floor (50) is pivotally mounted on said first or second beam (24, 26) about a fifth axis of rotation (Y), the fifth axis of rotation (Y) being parallel to the main direction of extension of said first or second beam (24, 26).
6. A console according to claim 5, further comprising an extension floor (54) configured to fit over an edge of the second floor (50) opposite said first or second beam (24, 26).
7. Console (20) according to one of claims 5 and 6, in which the first floor (48), the second floor (50) and, where appropriate, the extension floor (54), extend in a fan shape from the first or second beam (24, 26).
8. Console (20) according to claim 5 or 6, further comprising a filling floor (68) configured to fit over an edge of the second floor (50) intended to face the wall under construction (12).
9. A console (20) according to any one of claims 5 to 8, wherein a guardrail (70) is mounted on each edge of the first or second floor (48, 50) remote from the wall under construction (12).
10. A console (20) according to any preceding claim, further comprising a ladder (76) configured to allow an operator (18) to ascend or descend between the first and second beams (24, 26) and / or a walkway (78) configured to allowing the passage of an operator (18) from one side of the wall under construction (12) to an opposite side by passing over the wall under construction (12).
11. A suspended scaffold (10) comprising a plurality of brackets (20) according to any preceding claim, the brackets (20) being arranged regularly around a wall under construction (12).
Citation Information
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