A method for erecting a concrete structure by successively casting at least a first casting segment with a first floor slab, a second casting segment with a second floor slab and a third casting segment with a third floor slab includes providing a support column carrying a frame for suspending a formwork therefrom, the support column having a jack for transferring the support column from a retracted position to an extended position and vice versa, supporting the support column, by means of a first support bracket, arranging a second support bracket, at a vertical position between the second and third floor slab, on the support column, activating the jack for transferring the support column from the retracted position to the extended position, supporting the support column, by means of the second support bracket, and activating the jack for transferring the support column from the extended position to the retracted position.

A method for erecting a concrete structure by successively casting at least a first casting segment with a first floor slab, a second casting segment with a second floor slab and a third casting segment with a third floor slab includes providing a support column carrying a frame for suspending a formwork therefrom, the support column having a jack for transferring the support column from a retracted position to an extended position and vice versa, supporting the support column, by means of a first support bracket, arranging a second support bracket, at a vertical position between the second and third floor slab, on the support column, activating the jack for transferring the support column from the retracted position to the extended position, supporting the support column, by means of the second support bracket, and activating the jack for transferring the support column from the extended position to the retracted position.

A method for erecting a concrete structure by successively casting at least a first casting segment with a first floor slab, a second casting segment with a second floor slab and a third casting segment with a third floor slab includes providing a support column carrying a frame for suspending a formwork therefrom, the support column having a jack for transferring the support column from a retracted position to an extended position and vice versa, supporting the support column, by means of a first support bracket, arranging a second support bracket, at a vertical position between the second and third floor slab, on the support column, activating the jack for transferring the support column from the retracted position to the extended position, supporting the support column, by means of the second support bracket, and activating the jack for transferring the support column from the extended position to the retracted position.

A method for erecting a concrete structure by successively casting at least a first casting segment with a first floor slab, a second casting segment with a second floor slab and a third casting segment with a third floor slab includes providing a support column carrying a frame for suspending a formwork therefrom, the support column having a jack for transferring the support column from a retracted position to an extended position and vice versa, supporting the support column, by means of a first support bracket, arranging a second support bracket, at a vertical position between the second and third floor slab, on the support column, activating the jack for transferring the support column from the retracted position to the extended position, supporting the support column, by means of the second support bracket, and activating the jack for transferring the support column from the extended position to the retracted position.

A method for erecting a concrete structure by successively casting at least a first casting segment with a first floor slab, a second casting segment with a second floor slab and a third casting segment with a third floor slab includes providing a support column carrying a frame for suspending a formwork therefrom, the support column having a jack for transferring the support column from a retracted position to an extended position and vice versa, supporting the support column, by means of a first support bracket, arranging a second support bracket, at a vertical position between the second and third floor slab, on the support column, activating the jack for transferring the support column from the retracted position to the extended position, supporting the support column, by means of the second support bracket, and activating the jack for transferring the support column from the extended position to the retracted position.

A climbing device is proposed having at least one climbing rail (14) for adjusting and/or climbing a scaffolding and/or a formwork and/or a platform, at least one climbing shoe (15, 16) being arranged on the climbing rail (14), at least one hydraulic cylinder (2) comprising at least one drive piston (10), arranged in a cylinder housing (12), and having a hydraulic fluid being provided for raising the climbing shoe (15, 16) and/or the climbing rail (14) and/or the scaffolding and/or the formwork and/or the platform, which at least partially avoids or at least reduces the disadvantages of the prior art. According to the invention this is achieved in that the hydraulic cylinder (2) is embodied as a hydraulic unit (1), the hydraulic unit (1) comprising at least one hydraulic tank (5) for storing hydraulic fluid, an electric motor (3) and a hydraulic pump (4) driven by the electric motor (3) for pressurizing the hydraulic fluid.

A 3D printer with a lift mechanism is disclosed. The 3D printer is coupled to the lift mechanism which is in turn coupled to a base or the ground. The lift mechanism comprises telescopically extendable columns comprising concentric cylinders positioned within one another, so as to extend and collapse fully, thus raising and lowering the 3D printer to a specific height. The lift mechanism further comprises extendable and lockable diagonals which connect neighboring telescopic columns at their top portions in a helical fashion. The diagonals are installed for sturdiness and support as the lift is operated, as well as to position the lift at a desired height when the diagonals are locked in place. The lift mechanism may comprise 2 telescopic cylinder columns or 3 or more telescopic cylinder columns. The lift mechanism comprises at least a first stage and an intermediate stage, and optionally a last stage.

A 3D printer with a lift mechanism is disclosed. The 3D printer is coupled to the lift mechanism which is in turn coupled to a base or the ground. The lift mechanism comprises telescopically extendable columns comprising concentric cylinders positioned within one another, so as to extend and collapse fully, thus raising and lowering the 3D printer to a specific height. The lift mechanism further comprises extendable and lockable diagonals which connect neighboring telescopic columns at their top portions in a helical fashion. The diagonals are installed for sturdiness and support as the lift is operated, as well as to position the lift at a desired height when the diagonals are locked in place. The lift mechanism may comprise 2 telescopic cylinder columns or 3 or more telescopic cylinder columns. The lift mechanism comprises at least a first stage and an intermediate stage, and optionally a last stage.

A forming system includes a frame and two forming walls. The two forming walls are positioned at a distance from each other to define a first vertical wall course. One forming wall is supported by the frame such that the one forming wall can be translated toward or away from the respective other forming wall. The frame can be raised to raise the two forming walls to be positioned to pour a second vertical course on top of the first vertical course. The translation of the one forming wall allows for the pouring of the first vertical course with horizontally extending rebar that extends through the one forming wall outside of the first vertical wall course, to tie in to a subsequently poured floor slab. The translation permits the vertical raising of the one forming wall, without striking the extending rebar, to pour the second vertical course on the first vertical course. A worker's platform is provided that is supported by the frame and vertically movable by raising the frame. The worker's platform is located below the one forming wall on a side of the one forming wall opposite the respective other forming wall and is retractable to also clear the extending rebar during raising of the frame.

A forming system includes a frame and two forming walls. The two forming walls are positioned at a distance from each other to define a first vertical wall course. One forming wall is supported by the frame such that the one forming wall can be translated toward or away from the respective other forming wall. The frame can be raised to raise the two forming walls to be positioned to pour a second vertical course on top of the first vertical course. The translation of the one forming wall allows for the pouring of the first vertical course with horizontally extending rebar that extends through the one forming wall outside of the first vertical wall course, to tie in to a subsequently poured floor slab. The translation permits the vertical raising of the one forming wall, without striking the extending rebar, to pour the second vertical course on the first vertical course. A worker's platform is provided that is supported by the frame and vertically movable by raising the frame. The worker's platform is located below the one forming wall on a side of the one forming wall opposite the respective other forming wall and is retractable to also clear the extending rebar during raising of the frame.