EP2570568A2 - Tête décintrable pour un système de coffrage de plafond et procédé de retrait d'éléments de coffrage de plafond - Google Patents

Tête décintrable pour un système de coffrage de plafond et procédé de retrait d'éléments de coffrage de plafond Download PDF

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Publication number
EP2570568A2
EP2570568A2 EP12181170A EP12181170A EP2570568A2 EP 2570568 A2 EP2570568 A2 EP 2570568A2 EP 12181170 A EP12181170 A EP 12181170A EP 12181170 A EP12181170 A EP 12181170A EP 2570568 A2 EP2570568 A2 EP 2570568A2
Authority
EP
European Patent Office
Prior art keywords
support
lowered
formwork
supports
pivotable
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.)
Granted
Application number
EP12181170A
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German (de)
English (en)
Other versions
EP2570568A3 (fr
EP2570568B1 (fr
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.)
Doka GmbH
Original Assignee
Doka Industrie GmbH
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Filing date
Publication date
Application filed by Doka Industrie GmbH filed Critical Doka Industrie GmbH
Publication of EP2570568A2 publication Critical patent/EP2570568A2/fr
Publication of EP2570568A3 publication Critical patent/EP2570568A3/fr
Application granted granted Critical
Publication of EP2570568B1 publication Critical patent/EP2570568B1/fr
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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
    • E04G11/36—Forms, shutterings, or falsework for making walls, floors, ceilings, or roofs for floors, ceilings, or roofs of plane or curved surfaces end formpanels for floor shutterings
    • E04G11/48—Supporting structures for shutterings or frames for floors or roofs
    • E04G11/486—Dropheads supporting the concrete after removal of the shuttering; Connecting means on beams specially adapted for dropheads

Definitions

  • the invention relates to a drop head for a slab formwork system and to a method for removing formwork elements using such a drop head.
  • the DE 33 16 557 C1 a slab formwork system with a drop head and a drop piece, which can perform a certain tilting movement.
  • the DE 101 35 664 B4 relates to a support for slab formwork with a drop head, which is divided into two parts, wherein the two parts are mounted differently lowered on the support, and a part is rotatable about the support.
  • the object of the invention is to make available a drop head and a method for removing shuttering elements using it, by means of which the work necessary for switching on and off can be carried out even more reliably.
  • this problem has at least one lowerable support for at least one slab formwork element, which is in particular pivotable about a horizontal axis.
  • this pivotable support as well as the drop head in total in accordance with the DE 10 2010 001 042 A1 be designed by the applicant.
  • the entire disclosure of this document is made with regard to the drop head and its individual features to the subject of the present application, and all details of the case head described therein can be combined with the drop head according to the invention, unless they contradict the teachings herein.
  • the drop head according to the invention is characterized in that at least one pivotable support starting from a Concreting position can be lowered at least two stages.
  • a pivoting of the support is blocked in a first, upper lowering stage, and the support is pivotable in a second, lower lowering stage.
  • the security is particularly increased when stripping, since it was not previously excluded that formwork panels remain stuck to the fresh concrete ceiling when the drop head was already lowered, and this pivoting of the supports was allowed.
  • an uncontrolled fall of formwork elements could not be excluded.
  • the drop head is first lowered to a first lowering stage in which a pivoting of the support is still blocked.
  • this lowering can be checked whether all formwork panels and other formwork elements have been released from the ceiling, and only then the drop head is further lowered to then controlled the shuttering elements using the pivoting of the support and safely remove.
  • the lowering to the first lowering step for example, by about 10 mm, and the further reduction can be made for individual parts of the typically multi-part drop head by about 15 to 40 mm.
  • a locking plate For blocking the pivotable support in the first lowered position, a locking plate has proven to be particularly favorable, which blocks pivoting of the support and at the same time forms a support for the pivotable support to simplify the construction.
  • This blocking plate preferably has an opening which in an advantageous manner for moving the blocking plate in a Position can be used, in which the pivotal support can reach the second Absenkfeel.
  • the locking plate further comprises at least one recess for at least one securing element provided fixedly on the drop head.
  • This securing element can be embodied, for example, as a securing bolt, and it can be ensured by the interaction between the securing element and the recess that the blocking plate is in a position in which it fulfills its function again at the next use.
  • the last described feature can be carried out so that a return of all movable elements in the use position for concreting is only possible if the securing element is in the recess of the locking plate.
  • the drop head further comprises at least one only translationally displaceable support, which is also lowered at least two stages, and at least in the second lowering stage is lowered by a different dimension than the pivotable support.
  • ceiling formwork panels can be placed at the corners of typically a plurality of first, further lowerable supports.
  • the surfaces immediately adjacent to the top plate of the drop head are to be closed by separate formwork elements.
  • cover strips or small panels have proven to be low, which can be lowered at stripping by a shortened path. This reduces the risk of damage.
  • cover strips or small panels for example made of plastic, which each rest on the top plates of the drop heads. In other words, the top plates themselves do not form part of the formwork.
  • the cover strips described initially remain in place. If the supports are to be removed later, this is not possible for two supports at the same time, in order to also remove the cover strip resting on these two supports. Thus, first a support is removed, and the cover strip is no longer supported at one end, while it remains trapped at the other end between the stationary support and the concrete. In this situation, a break often occurs due to the dead weight of the cover strip.
  • the small panels or cover strips may be removed after lowering the drop heads together with any larger formwork panels.
  • the pivotable support is pivotable out of the vertical projection of the slab formwork element such that the slab formwork element can be lowered past the at least one pivotable support.
  • the support or fall piece of the drop head according to the invention is pivotable such that a slab formwork element such.
  • Below the top mentioned “vertical projection” is that space understood that the ceiling formwork element in the use position so largely horizontally, in the vertical direction, ie up and down covering.
  • the slab formwork element usually in the context of lowering, so the Ausschalens not emerge.
  • the slab formwork elements can be removed because the concrete is already cured to a certain extent at this time.
  • the supports with the drop heads remain in such a way that the (not lowered) head plates of the supports support the concrete ceiling selectively until sufficient further curing.
  • the possibility of removing the slab formwork elements is advantageous insofar as these elements can be brought early to another location, typically one to a floor higher ceiling.
  • these elements which are subject to special stress and pollution due to the frequent and changing use, in the system according to the invention are not necessarily equipped with moving parts.
  • the drop heads are provided with the described, pivotable supports whose swinging out, as described in more detail below, advantageously in a simple manner from the ground and in the context of removal of the slab formwork elements can be triggered. Since the supports can be swiveled out of the described vertical projection, the slab formwork elements can simply be lowered.
  • the drop head according to the invention has a (not lowerable) head plate, as well as a connection possibility to a prop.
  • a support element is preferably provided, which the lowerable support in a first Position at a higher level, and in a second position, in which it was moved, for example, by a hammer blow, at a second, lower level holds.
  • the pivoting out of the described vertical projection is particularly simple if a pivot axis of the support is arranged above the support.
  • the support can advantageously be initially pivoted upwards, for example by means of the undercut described below, by engagement with the ceiling formwork element, thereby disengaging from the ceiling formwork element. In the subsequent lowering movement, the support can be swung out of the vertical projection simultaneously.
  • At least one support has at least one undercut acting in the vertical direction.
  • the undercut essentially provides a projection below which and on which a suitable section of a slab formwork element can be held, so that this, which is quite possible in strong winds, can not be lifted.
  • the undercut can also be used to the fact that when lifting the slab formwork element at the beginning of Ausschalvorganges also the support is slightly raised.
  • the pivot axis of the support above moves away from the edge of the slab formwork element and thus comes out of engagement.
  • the ceiling formwork element can be lowered below, while the support, for example, by the pressure on the ceiling formwork element when lowering this exerts, is pivoted out of the vertical projection of the slab formwork element.
  • a slab formwork system which has at least one drop head according to the invention.
  • one or more props and one or more slab formwork elements in particular girders or panels, may be mentioned.
  • the provided on at least one undercut with an undercut on at least one slab formwork element cooperate such that the slab formwork element is secured against unwanted lifting on the one hand and on the other hand when stripping from the undercut of the support can be disengaged, and finally can be removed past the swiveled bearing.
  • the slab formwork system described herein further comprises at least one carrier described in more detail below.
  • This preferably consists at least partially of metal, in particular steel, but may be any other suitable material, such as. As wood, aluminum or fiber reinforced plastic.
  • a particular challenge is to be able to continue to manipulate the carrier or a plurality of such carriers, which may be integrated into a formwork element.
  • the carrier should save as much weight as possible, while at the same time meeting the demands made on the strength are. This is achieved by one or more of the measures described below.
  • the carrier may be curved at least slightly in the direction of the concrete to be filled. This essentially means a certain "preload” in the direction of the load, which results in that the load can be absorbed particularly well. This is possible in particular without the risk of deflection against the curvature direction, which would lead to unwanted bulges or bulges at the bottom in the finished concrete pavement.
  • the curvature described may be formed as a uniform curvature and may be on the order of a few millimeters, depending on the length of the carrier, for example, about 4 millimeters.
  • the slab formwork support can have openings whose size and / or shape and / or orientation and / or distribution changes over the length of the support such that the support is less weakened in a middle area than in at least one end area.
  • a support is usually mounted at its ends, and in its course a uniform line load is applied. This results in a load in middle areas, which is greater than in end areas.
  • the carrier is provided with openings which are either increasingly smaller and / or less in the central region.
  • the openings over the entire carrier can have a substantially constant shape, for example circular, but become smaller towards the middle.
  • the shape and / or orientation of the openings in the direction of the center changed in such a way that a smaller weakening occurs here.
  • a smaller weakening occurs here.
  • from an ellipse shape in the near-edge Zones are converted to a circular shape in the central region, and / or elliptical openings can be aligned horizontally instead of vertically.
  • the versatility of the slab formwork support it has proven to be advantageous to design at least one opening such that at least one bracket can be suspended for supporting another, preferably a wooden formwork support.
  • the compatibility with other slab formwork systems which for example have wooden formwork beams, can be guaranteed.
  • the described suspension for the particularly flexible embodiment of the edge region of the slab formwork system according to the invention is low. It should be noted that for the hanging of the described strap a regular arrangement, in other words a kind of grid, of possibly equal and / or uniform openings is conceivable.
  • such an embodiment is optionally in combination with one or more of those described above or below Characteristics, as well as the use of at least one opening in a slab formwork carrier for hanging at least one strap for receiving a further, preferably a wooden formwork support to be considered as the subject of the present application.
  • This can be largely U-shaped with a bottom whose "width" (viewed from above) corresponds approximately to the width of a carrier (also viewed from above, measured perpendicular to the longitudinal extent of the carrier).
  • two legs may be attached to different sides, so that they extend in use largely vertically to different sides of the formwork support.
  • the bracket By mutually directed, but offset by the length of the bottom projections or hook the bracket can be hung, for example, in two adjacent openings of a formwork support and used for placing one or more wooden formwork beams. It has heretofore been known to provide laterally strip-like projections over substantially the entire length of the carrier in the case of formwork carriers, which have an elevation at their end, so that the described brackets can be suspended.
  • the measure described above, to use openings in the support for hanging ironing, on the other hand offers the advantage that there is a much lower risk of contamination than in the described strip-shaped projections.
  • the slab formwork carrier alone develops its advantages, but it can be advantageously integrated into a formwork element, in particular panel, and such an element can have several of the described slab formwork supports, so that the advantages described in a special way for a Use shuttering element.
  • the formwork support is provided at least at one end with at least two directed in the same (usually vertical) direction supports, which are arranged at different vertical heights that the carrier on at least two different horizontal Levels can be placed on other elements of a slab formwork system.
  • the formwork support is arranged substantially horizontally in use, but it is also conceivable that the use position of the formwork support is vertical, and thus that different positions are possible in the lateral direction.
  • the formwork support described herein is not necessarily always provided as a slab formwork support, but it can be used as any formwork support. In any case, directed in the same direction, at least two supports ensure that the formwork support is particularly versatile.
  • the supports directed in the same direction have the advantage that this nailability applies to the use on the two (or more) horizontal levels.
  • the supports provided on at least two vertical heights can be used particularly well if a grid of several carriers is to be formed.
  • several formwork beams can be arranged at a first, lower level.
  • by using the higher support can be further formwork support, for example, transverse to the formwork supports mentioned above hang on this, and are then at the same vertical level, such as formwork beams, which are used immediately using their "lower” support, and thus are “higher”.
  • the slab formwork carrier can be characterized as a "transitional support", For example, to areas where another slab formwork system is used, or use as "edge support", for example, to existing walls, to make here the "correct" level of formwork.
  • At least one support is sleeve-shaped.
  • Such a shape forms a substantially vertically extending cavity into which a substantially vertical projection or pin of a counter-support, for example on a support, can be inserted.
  • the cavity described is limited to at least three, preferably four sides in the horizontal direction and / or provided with a rounded contour, so that a particularly good interaction with round pins, such as a column head, is possible.
  • a formwork element is furthermore preferred in which beams running transversely between edge supports are spaced less in a middle region of the panel than in end areas.
  • an embodiment of a formwork element has proved to be particularly favorable, in which any edge support are not curved, and this measure is used only for at least one particularly stressing cross member between the edge beams.
  • the drop head 10 at its (in the use position shown) lower end substantially on a pipe section 24, with which it can be inserted and fastened to the upper end of a (not shown) prop.
  • a top plate 24 At its upper end of the drop head 10 is provided with a top plate 24.
  • a translatory (vertically in the use position) displaceable support 22 which serves in particular the support of strip-shaped formwork elements.
  • the two supports 22 are provided on one and the same component, which rests on the designated D position on another, pivotable about a horizontal axis supports.
  • This support is essentially as shown in FIG FIG. 1 formed “before” and “behind” the plane and has in the example shown pins 26 with undercuts 28.
  • a recess is formed, in which a blocking plate 14 is accommodated.
  • the left area of the FIG. 1 is this "recording” to recognize, while in the right area of the FIG. 1 "in front of” the blocking plate 14, the portion facing the observer can be seen, which delimits the recess on this side.
  • the exact fit receiving the locking plate 14 in the described recess prevents pivoting of the supports 12 about a horizontal axis in the position shown.
  • the components with the supports 12 are on both sides at the point C, so to speak, on the upper boundary of the recess on the locking plate 14.
  • the blocking plate in turn lies on a so-called main wedge 30 (bearing surface B).
  • the main wedge 30 is in the region of the contact surface A on a projection 34 on the main body of the drop head 10.
  • securing bolt 20 As supplementary in FIG. 1 can be seen, formed on the base body securing bolt 20 must be received in a corresponding recess 18 in the locking plate 14 to bring the locking plate 14 in a position which is "high enough", so that the main wedge 30 with the projection 34th can be engaged. In this position, it is ensured that the blocking plate 14 unfolds its securing effect described below, and a particularly secure removal of formwork elements is possible. In the in FIG. 1 shown position is with the exception of the main wedge none of the described elements displaceable or pivotable.
  • the movable (upper) part of the drop head 10 by a displacement of the main wedge 30 according to FIG. 1 be lowered to the left.
  • the wedge surface formed (downwardly) on the main wedge 30 is disengaged from the complementary wedge surface formed on the projection 34, and the projection 34 on the main body on which said complementary inclined surface is formed enters Area of an opening in the main wedge 30 so that it can fall down to a plate 32.
  • first lowering step is in FIG. 2 shown and lowers all supports only by a few millimeters. Another lowering is prevented by the locking plate 14, which now rests on the previously described, formed on the base projection 34 (contact point E in FIG. 2 ). The supports 12 are still at the contact point C on the lock plate, which prevents pivoting of the supports 12 in this first, first lowering step. At the contact point D, the further supports 22 continue to rest on the pivotable supports so that all supports are lowered, for example, by 10 mm, and it can be checked whether all formwork elements have been released from the fresh concrete.
  • second lowered position results when starting from the in FIG. 2 shown first lowering position, the locking plate of the type, in this case, as shown in the figures, is moved to the right, which also disengages the locking plate 14 from the projection 34 and falls down to the main wedge 30.
  • the pivoting of the support 12 is no longer blocked, and resting thereon formwork elements can be removed.
  • these withdrawals are first made on one side of a series of shuttering elements arranged side by side by pivoting about the (not yet brought to the second Absenknote) supports the opposite side.
  • the supports 12 were lowered significantly further than the supports 22, which are displaceable only in the vertical direction, but not pivotable.
  • the element on which the supports 12 are formed now rests on the contact point F on its pivot axis 36, and the element with the supports 22 rests against a bevel 38 (contact point G) formed on the base body.

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  • 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)
EP20120181170 2011-09-16 2012-08-21 Tête décintrable pour un système de coffrage de plafond et procédé de retrait d'éléments de coffrage de plafond Active EP2570568B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102011082841.9A DE102011082841B4 (de) 2011-09-16 2011-09-16 Fallkopf für ein Deckenschalungssystem und Verfahren zum Entfernen von Deckenschalungselementen

Publications (3)

Publication Number Publication Date
EP2570568A2 true EP2570568A2 (fr) 2013-03-20
EP2570568A3 EP2570568A3 (fr) 2014-01-15
EP2570568B1 EP2570568B1 (fr) 2015-01-28

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ID=46963406

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Application Number Title Priority Date Filing Date
EP20120181170 Active EP2570568B1 (fr) 2011-09-16 2012-08-21 Tête décintrable pour un système de coffrage de plafond et procédé de retrait d'éléments de coffrage de plafond

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Country Link
EP (1) EP2570568B1 (fr)
DE (1) DE102011082841B4 (fr)
ES (1) ES2534784T3 (fr)
HK (1) HK1181831A1 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US11105105B2 (en) 2017-10-12 2021-08-31 George CHARITOU Concrete-slab frame assembly
RU2803440C2 (ru) * 2018-11-29 2023-09-13 Пери Се Система щитовой опалубки перекрытий большой площади
US12065844B2 (en) 2018-11-29 2024-08-20 Peri Se Large area slab panel formwork system

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3316557C1 (de) 1983-03-03 1984-10-11 NOE-Schaltechnik GmbH, 7334 Süssen Deckenschalungssystem
DE102004004883A1 (de) 2003-08-04 2005-03-10 Ischebeck Friedrich Gmbh Deckenschalungs-Paneel und System-Deckenschalung
WO2008028297A1 (fr) 2006-09-06 2008-03-13 Spera, Anne-Marie Ensemble d'étaiement modulaire avec un support à longueur ajustable
DE10135664B4 (de) 2001-07-21 2008-06-26 Hünnebeck GmbH Stütze für Deckenschalungen od. dgl.
DE102010001042A1 (de) 2010-01-20 2011-07-21 Doka Industrie Gmbh Fallkopf für ein Deckenschalungssystem und Deckenschalungssystem

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4211136C2 (de) * 1992-04-03 1997-04-17 Gerhard Dingler Vorrichtung zur Deckenschalung

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3316557C1 (de) 1983-03-03 1984-10-11 NOE-Schaltechnik GmbH, 7334 Süssen Deckenschalungssystem
DE10135664B4 (de) 2001-07-21 2008-06-26 Hünnebeck GmbH Stütze für Deckenschalungen od. dgl.
DE102004004883A1 (de) 2003-08-04 2005-03-10 Ischebeck Friedrich Gmbh Deckenschalungs-Paneel und System-Deckenschalung
WO2008028297A1 (fr) 2006-09-06 2008-03-13 Spera, Anne-Marie Ensemble d'étaiement modulaire avec un support à longueur ajustable
DE102010001042A1 (de) 2010-01-20 2011-07-21 Doka Industrie Gmbh Fallkopf für ein Deckenschalungssystem und Deckenschalungssystem

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US11105105B2 (en) 2017-10-12 2021-08-31 George CHARITOU Concrete-slab frame assembly
US11225802B2 (en) 2017-10-12 2022-01-18 George CHARITOU Prop head assembly
US11686109B2 (en) 2017-10-12 2023-06-27 George CHARITOU Panel assembly for forming a floor of a construction component
US11686108B2 (en) 2017-10-12 2023-06-27 George CHARITOU Prop head assembly
US12084874B2 (en) 2017-10-12 2024-09-10 George CHARITOU Construction component
RU2803440C2 (ru) * 2018-11-29 2023-09-13 Пери Се Система щитовой опалубки перекрытий большой площади
US12065844B2 (en) 2018-11-29 2024-08-20 Peri Se Large area slab panel formwork system

Also Published As

Publication number Publication date
HK1181831A1 (en) 2014-01-17
DE102011082841A1 (de) 2013-03-21
ES2534784T3 (es) 2015-04-28
DE102011082841B4 (de) 2015-10-08
EP2570568A3 (fr) 2014-01-15
EP2570568B1 (fr) 2015-01-28

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