EP0391199A1 - Dispositif de levage - Google Patents

Dispositif de levage Download PDF

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Publication number
EP0391199A1
EP0391199A1 EP90105719A EP90105719A EP0391199A1 EP 0391199 A1 EP0391199 A1 EP 0391199A1 EP 90105719 A EP90105719 A EP 90105719A EP 90105719 A EP90105719 A EP 90105719A EP 0391199 A1 EP0391199 A1 EP 0391199A1
Authority
EP
European Patent Office
Prior art keywords
lifting
load
shaft
lifting device
load frame
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Withdrawn
Application number
EP90105719A
Other languages
German (de)
English (en)
Inventor
Guido Herzog
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Gleitbau-Gesellschaft mbH
GLEITBAU GmbH
Original Assignee
Gleitbau-Gesellschaft mbH
GLEITBAU GmbH
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Gleitbau-Gesellschaft mbH, GLEITBAU GmbH filed Critical Gleitbau-Gesellschaft mbH
Publication of EP0391199A1 publication Critical patent/EP0391199A1/fr
Withdrawn legal-status Critical Current

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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
    • E04G11/06—Forms, shutterings, or falsework for making walls, floors, ceilings, or roofs for walls, e.g. curved end panels for wall shutterings; filler elements for wall shutterings; shutterings for vertical ducts
    • E04G11/20—Movable forms; Movable forms for moulding cylindrical, conical or hyperbolical structures; Templates serving as forms for positioning blocks or the like
    • E04G11/22—Sliding forms raised continuously or step-by-step and being in contact with the poured concrete during raising and which are not anchored in the hardened concrete; Arrangements of lifting means therefor
    • E04G11/24—Construction of lifting jacks or climbing rods for sliding forms

Definitions

  • the invention relates to a method for lifting loads and in particular shaft slipforms according to the preamble of claim 1 and a lifting device for loads according to the preamble of claim 2.
  • the invention is therefore based on the object of designing a method and a corresponding lifting device for loads and in particular for shaft slipforms both for shaft-like structures in building construction and civil engineering in such a way that the use of climbing poles in the erecting concrete wall can be dispensed with and nevertheless a simplified construction is possible if necessary.
  • an outer body or an outer structure for example in the sense of a shaft sunk into the ground or in the sense of a building outer wall, is already present for the construction of a shaft-like structure. It is therefore possible to support or support a head structure on this external structure that is suitable for introducing all lifting forces into the external structure.
  • the head construction can therefore be supported on the top side or on the upper edge of the floor shaft.
  • one or more hoisting ropes such as e.g. Prestressing steel strands attached.
  • the load frame on which the actual load, e.g. the sliding formwork to be moved is fixed by means of a blocking device which is self-locking downwards and can be moved upwards.
  • a lifting device in the area of the load frame, which can also be moved upwards by means of a second blocking device which is self-locking downwards. The lifting device is non-positively against the load frame and serves to lift the load frame over the corresponding stroke.
  • the load or the load structure is therefore in a first step via a self-locking blocking device device is locked on the corresponding hoisting ropes.
  • the load or the shaft sliding formwork accordingly depends on the lifting cables in this position and phase.
  • a lifting device which is connected to a second blocking device, which can also be blocked on the lifting cables and is moved upwards, is moved with its piston rod into an end position in relation to the load frame.
  • the lifting device is then switched over by lifting the corresponding piston rod, which rests non-positively against the load frame.
  • the blocking devices there is a mutual interaction of the blocking devices arranged one above the other or one below the other or also on both sides of the lifting cables. While the blocking device blocks the load frame, the blocking device with lifting cylinder is moved to a maximum distance from the blocking device of the load frame. The power is then taken over by the lifting cylinder, its blocking device locking and the blocking device of the load frame being released and the load being able to be lifted upwards.
  • the blocking devices are expediently designed as downwardly self-locking wedge jaw sets which can accordingly be displaced upwards on the lifting cables.
  • Steel cables or prestressing steel strands are suitable for the lifting ropes, for example 0.6 ".
  • a lifting rope can in principle be regarded as sufficient, it is expedient from the point of view of load distribution, balance and accuracy to use several lifting ropes with the same distance from the shaft center axis and the same angular distance from one another.
  • the multiple arrangement of the lifting ropes and the blocking devices increases Therefore, a double-acting hydraulic cylinder is advantageously used as the lifting cylinder device, so that the piston movements of the lifting cylinder can be better controlled in one direction or the other.
  • diametrically opposite lifting cylinder devices which are rigidly connected to one another via a load beam or, if applicable, a load beam multiple cross. While diametrically opposed modules are installed at the same height, e.g. two assemblies offset by 90 °, such as lifting cylinders or blocking devices, can also be placed at different heights relative to the lifting cables.
  • the lifting cylinders preferably act on the load frame in the pressure direction.
  • the arrangement of the lifting cylinders and their blocking device above or below the corresponding blocking devices of the load frame can be selected almost as desired. It appears advantageous to arrange the load beam above the blocking devices for the load frame and to allow the associated lifting cylinders to engage the outer area of the load frame, for example using welded-on angle iron. In this case there are vertical recesses in the load frame, which must be at least longer than the intended one-time maximum stroke of the lifting cylinder. In other embodiments, the application of force between the lifting cylinder and load frame on the inside thereof is also conceivable.
  • the invention therefore creates a controlled lifting of loads on one or more hoisting ropes, the use of climbing poles being dispensed with entirely and, in addition, allowing a higher lifting speed due to the lifting or climbing ropes present outside the concrete wall to be created. Especially when using several hoisting ropes and corresponding sets of lifting cylinders, simple replacement in the event of malfunctions is possible.
  • the single figure shows an axial section along a shaft wall 3, which can have a circular or polygonal contour with regard to its inner diameter. Adjacent to this shaft wall is a concrete wall 23 lining this, which is to be erected by means of a shaft sliding formwork. The right area of the shaft wall has not been taken into account for reasons of simplicity, so that the overall construction must be seen as a mirror image of the central axis.
  • the lifting device 1 has a plate-shaped, rigid head construction 2, which is supported and supported on the upper edges 4 of the shaft wall 3.
  • 6 lifting cables 5 are fixed with indicated schematic fastenings, which are provided approximately vertically and evenly distributed in the shaft.
  • These hoisting ropes 5, which can be, for example, 0.6 "prestressing steel strands on the one hand, hang freely in the shaft or be stretched between the head construction and the starting level of the shaft. On these hoisting ropes 5, so to speak, the lifting device with the sliding formwork climbs upwards from below.
  • the sliding formwork 24 which e.g. is arranged in a circular manner, usually rigidly, but possibly also articulated, coupled to the load frame 7 via connecting supports 25.
  • Two vertically extending outer beams and a middle beam 7 are shown in the illustration of the load frame 7.
  • the carriers 7 of the load frame have a vertical recess 19 in the upper region, through which a load bar projects diagonally.
  • a lifting cylinder 14 with an approximately vertically extending piston rod 15 is arranged on both sides of the areas of the load beam 8 projecting beyond the load frame 7.
  • the vertical supports of the load frame 7 have angle iron 17, 18 on the outside in the area above and below the vertical recess 19, against the horizontal surfaces of which the piston rod 15 of the lifting cylinder 14 is supported.
  • two sets of wedge jaws 11 are attached to the load carrier 8 as blocking devices.
  • a further blocking device 12 is provided on the inside of the load frame 7 via an angle iron 16, which, e.g. can also be designed as a wedge jaw set.
  • the load bar 8 in the example is supplemented by a further load bar 9 arranged above it and protruding into or out of the drawing plane, the entire load is taken up by a bar cross.
  • the corresponding angle iron 16 or the corresponding blocking device 12 of the carrier of the load frame 7, which is shown in the middle in FIG. 1, can be offset in height.
  • the blocking devices 11, 12 are self-locking when a force is applied downwards, but can be freely moved upwards.
  • a cross member 21 is applied to the upper end of the load beam 7, from which corresponding distribution pipes for the concrete originate.
  • the lifting cylinders 14 are first moved into their uppermost position in the example, in which their upper edge almost strikes the horizontal lower leg of the angle iron 17, so to speak.
  • the blocking devices 11, 12 are accordingly at a maximum, vertical distance.
  • the double-acting lifting cylinders 14 are now e.g. acted hydraulically so that its piston rod 15 is guided upwards.
  • the wedge jaw sets 11 block on the steel lifting cables 5, while the wedge jaw sets 12 are released by the upward movement and allow the entire load frame to be lifted.
  • the maximum stroke is therefore achieved when, in the example, the blocking devices 11, 12 are at a minimum distance and the lower edge of the lifting cylinder 14 is almost against the angle iron 18.
  • the lifting cylinder is deflected, whereby it is, so to speak, moved upwards along its piston rod 15 up to the stop against the angle iron 17. Only then, with further application of force in the opposite direction, does the block of wedge jaws 11 take place and the entire load structure is raised again step by step.
  • the lifting device described above is therefore ideally suited for lifting shaft sliding formwork, since it is not necessary to install climbing poles in the concrete wall.
  • double-acting hydraulic cylinders and a corresponding switching mechanism of the blocking devices a defined lowering of loads could also be achieved with this.

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)
EP90105719A 1989-04-05 1990-03-26 Dispositif de levage Withdrawn EP0391199A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3911044 1989-04-05
DE19893911044 DE3911044A1 (de) 1989-04-05 1989-04-05 Hebevorrichtung

Publications (1)

Publication Number Publication Date
EP0391199A1 true EP0391199A1 (fr) 1990-10-10

Family

ID=6377937

Family Applications (1)

Application Number Title Priority Date Filing Date
EP90105719A Withdrawn EP0391199A1 (fr) 1989-04-05 1990-03-26 Dispositif de levage

Country Status (2)

Country Link
EP (1) EP0391199A1 (fr)
DE (1) DE3911044A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ES2216681A1 (es) * 2002-06-06 2004-10-16 Juan Ramon Mulero Diaz Soporte mecanico con pinza.

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1398670A (fr) * 1964-06-16 1965-05-07 élévateur universel
DE1556787B2 (de) * 1967-03-03 1973-03-22 Aktiebolaget Byggförbättring, Stockholm Steighebewerk
GB2189831A (en) * 1986-04-29 1987-11-04 Epitestudomanyi Intezet Apparatus for moving the formwork for ceilings of multistorey buildings

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DD95666A1 (fr) * 1972-01-14 1973-02-12

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1398670A (fr) * 1964-06-16 1965-05-07 élévateur universel
DE1556787B2 (de) * 1967-03-03 1973-03-22 Aktiebolaget Byggförbättring, Stockholm Steighebewerk
GB2189831A (en) * 1986-04-29 1987-11-04 Epitestudomanyi Intezet Apparatus for moving the formwork for ceilings of multistorey buildings

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ES2216681A1 (es) * 2002-06-06 2004-10-16 Juan Ramon Mulero Diaz Soporte mecanico con pinza.

Also Published As

Publication number Publication date
DE3911044C2 (fr) 1992-04-23
DE3911044A1 (de) 1990-10-11

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