EP3674495A1 - Écarteur pour la construction en béton pourvu d'élément collecteur de laitier - Google Patents

Écarteur pour la construction en béton pourvu d'élément collecteur de laitier Download PDF

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Publication number
EP3674495A1
EP3674495A1 EP19215488.8A EP19215488A EP3674495A1 EP 3674495 A1 EP3674495 A1 EP 3674495A1 EP 19215488 A EP19215488 A EP 19215488A EP 3674495 A1 EP3674495 A1 EP 3674495A1
Authority
EP
European Patent Office
Prior art keywords
spacer
formwork
stillage
support
spacer according
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
EP19215488.8A
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German (de)
English (en)
Other versions
EP3674495B1 (fr
Inventor
Willibald Fischer
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.)
FWR Solutions GmbH
Original Assignee
FWR Solutions GmbH
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Publication date
Application filed by FWR Solutions GmbH filed Critical FWR Solutions GmbH
Publication of EP3674495A1 publication Critical patent/EP3674495A1/fr
Application granted granted Critical
Publication of EP3674495B1 publication Critical patent/EP3674495B1/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
    • E04C5/00—Reinforcing elements, e.g. for concrete; Auxiliary elements therefor
    • E04C5/16—Auxiliary parts for reinforcements, e.g. connectors, spacers, stirrups
    • E04C5/168—Spacers connecting parts for reinforcements and spacing the reinforcements from the form
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
    • E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
    • E04B1/62—Insulation or other protection; Elements or use of specified material therefor
    • E04B1/66—Sealings
    • E04B1/68—Sealings of joints, e.g. expansion joints
    • E04B1/6807—Expansion elements for parts cast in situ

Definitions

  • the present invention relates to a spacer for concrete construction for use between a formwork or a floor surface and a reinforcement element in the area of a, in particular partially permeable, formwork wall, the spacer comprising a contact surface for arrangement on the formwork or floor surface, and a support for the reinforcement element.
  • the invention further relates to a formwork and reinforcement arrangement with a corresponding spacer.
  • a shuttering element for a corresponding formwork wall which has in its lower section a concrete cover strip which can act as a spacer in order to hold the reinforcement in the intended position.
  • More spacers are from the DE 19 58 266 U known, here for example parallel support walls can form a support for reinforcing bars.
  • the retaining walls are connected to ventilation holes by an intermediate web so that the liquid concrete can fill the areas above and below the intermediate web.
  • the object of the present invention is to provide an easy-to-use, reliable and effective design of a spacer which can prevent or at least reduce contamination during concreting in areas.
  • a spacer for concrete construction for use between a formwork or a floor surface and a reinforcement element in the area of a particularly partially permeable formwork wall, the spacer comprising an abutment area for arrangement on the formwork or floor surface, a support for the reinforcement element, and a slurry catcher element, which is designed to catch any sludge emerging on the formwork wall.
  • This makes it possible to prevent escaping slurry from flowing onto the formwork or floor surface. Rather, the mash is at least largely caught in the mash collecting element.
  • the stillage catcher element is part of the spacer and is therefore arranged directly in the region of the partially permeable formwork wall. The vinasse is thus caught in the area where it originated.
  • the formwork wall is in particular an expanded metal grid, a perforated plate or the like.
  • the slurry is formed in particular by liquid concrete components which emerge from the concrete during the concreting of a concreting section and then flow off in particular through the formwork walls. The slurry therefore flows through the openings in the formwork wall and then down the formwork wall.
  • the stillage flows in the area of the spacer onto the formwork or floor surface and contaminates it. According to the invention, the stillage is now caught directly in its area of origin.
  • the formwork wall can also be an impermeable, flat component, for example a fully closed sheet. Nevertheless, Schlempe can emerge in edge areas, especially in the lower area between the spacer and the formwork wall.
  • the stillage catcher enables the stillage to be caught.
  • the reinforcement element is in particular at least one reinforcement bar made of metal.
  • the reinforcement element can be a plurality of reinforcement bars which are arranged in the form of a lattice and are possibly connected to one another.
  • the stillage catch element is advantageously arranged next to the support of the spacer, particularly advantageously directly next to the support.
  • the formwork wall is advantageously arranged in the area of the support. Since the formwork wall is connected to the reinforcement elements, this arrangement enables the weight of the formwork wall to be advantageously supported and thus gives the overall arrangement additional stability. At the same time it is achieved that the stillage catch element is arranged next to the support directly under the formwork wall, and can collect draining off concrete slurry.
  • the support can be arranged between two stillage collecting elements. This is particularly advantageous since it is now arbitrary whether the formwork wall is arranged to the left or to the right of the support, since drawer catch elements are provided on both sides. As a result, errors in the specific arrangement of the spacers on the construction site can be avoided, as a result of which costly subsequent inspections and improvements can be omitted.
  • the stillage collecting element is designed in the form of a channel or trough which is primarily closed off downwards.
  • the tub can be closed in particular on its end face.
  • the channel can also run in an area outside the next concreting section, so that the slurry can be discharged into non-critical areas.
  • only collecting surfaces that can be arranged straight or at an angle can be provided.
  • the catchment areas can either be sufficiently large to catch the stillage or allow the stillage to flow into a non-critical area.
  • the sludge collecting element is thus designed in such a way that it can catch or remove the stillage that is formed on a formwork wall when concreting a first concreting section in such a way that it does not contaminate an adjacent, second concreting section to be concreted later.
  • the stillage collecting element is formed at an acute angle in its lower region, so that the contact region is formed by a line. This allows the spacer to be enclosed in concrete except for the linear abutment area, thereby minimizing the exposed area of the spacer. Minimizing the exposed area is advantageous because it remains visible after the concreting sections have been completed and must be protected against corrosion if necessary.
  • the linear contact area can be provided in particular by a kink in the spacer.
  • the spacer is advantageously formed by a sheet metal, the kink being formed by reshaping between two boundary surfaces of the sheet metal.
  • the spacer comprises two flat flange areas, which are each arranged at the same height, the flange areas being connected by two V-shaped boundary surfaces, the connection point of which forms the linear contact area.
  • the stillage collecting element has a base plate and side walls arranged on both sides thereof. This enables a simple design of the stillage collecting element, as well as an advantageous integration into the spacer, since, for example, the base plate can simultaneously form a contact surface for the spacer.
  • At least one side wall of the stillage collecting element can advantageously provide the support for the reinforcement element. This means that the reinforcement element or the reinforcement bar is placed on the side wall of the drawer catch element, which thus provides the function of the spacer.
  • the support is advantageously formed by a recess in a wall of the spacer.
  • the recess is in particular an upwardly open slot, the sides of which extend parallel, advantageously in the vertical direction.
  • the sides of the slot are in particular at a distance which is slightly larger than the diameter of the reinforcing bars.
  • a rounding can be provided, which has a radius of curvature which corresponds essentially to half the diameter of the reinforcing bars. This enables a secure and defined support of the reinforcement bar to be achieved.
  • the spacer is a bent part made of a metal plate. This enables simple manufacture and also advantageous stability.
  • the spacer advantageously has at least two parts, in particular connected by welding, one of which is a bent part and the other of which is a plate part.
  • the parts are formed from metal plates.
  • a connection can also be made by gluing, soldering or screwing.
  • a form fit can be provided by bending.
  • the bent part in particular forms the stillage collecting element by thereby forming a channel or trough.
  • the plate part forms a support part, which is advantageously provided with the aforementioned recesses.
  • the spacer has a coating at least in the contact area.
  • the coating enables the spacer, which is in particular made of metal, to be protected from environmental influences, so that in particular corrosion can be prevented.
  • the coating is made of plastic, in particular butyl or epoxy resin. This enables the creation of a thin, yet robust coating.
  • the spacer can be covered with concrete in its contact area. This enables a continuous concrete surface to be created between the concreting sections.
  • undercutting or protruding elements are advantageously provided on the spacer and are cast into the concrete covering.
  • the invention makes it possible to provide a formwork and reinforcement arrangement which has a spacer as described above, and furthermore at least one reinforcement element which is arranged on the support of the spacer, and a formwork wall which is arranged essentially above the stillage collecting element.
  • the formwork wall is connected in particular to the reinforcement element and possibly to the spacer, for example by wire rods and the like.
  • the formwork wall is advantageously designed as an expanded metal plate. This enables the concreting section to be delimited sufficiently so that the liquid concrete only easily passes through the formwork wall, but does not flow out significantly from the concreting section.
  • the formwork wall is arranged essentially vertically.
  • the reinforcement element extends essentially horizontally.
  • the escaping concrete slurry runs directly down the formwork wall into the slurry catcher.
  • the formwork wall and / or the reinforcement element can also be arranged obliquely. After the draper runs down the formwork wall, it is usually sufficient that the drape catcher is only located on the foot under the formwork wall.
  • the spacer consists of a one-part or multi-part rail made of metal or plastic with a substantially L-shaped cross section
  • the long L-leg contains upwardly open slots, which form supports for reinforcing bars with their lower ends, and whose short L-leg is angled upwards in the form of a gutter to form the stillage collecting element.
  • the short L-leg is angled upward essentially vertically.
  • the width of the stillage collecting element is greater than the height of the bend of the short L-leg.
  • the short L-leg is angled upwards so far that its free edge lies in one plane with the supports and thereby forms second supports for the reinforcement bars.
  • slots open at the top can also be provided in the bend.
  • the spacer can consist of a one-part or multi-part rail with a substantially U-shaped cross-section, the two legs of which contain upwardly open slots, the lower ends of which form first and second supports for reinforcing bars, the slider catch element being replaced by the middle, lower section of the U-shaped cross section is defined.
  • the cross section of the rail can have a symmetrical shape that is mirrored around the long L-leg as an axis of symmetry. This ensures that the orientation of the spacer with respect to the plane of symmetry is irrelevant, which means that errors during installation due to incorrect orientation in this regard can be excluded.
  • the invention further provides a shuttering and reinforcement arrangement which comprises one of the aforementioned spacers, at least one reinforcement element which is arranged on the support of the spacer, and a formwork wall which is arranged essentially above the sludge catcher element.
  • the formwork wall can be an expanded metal plate.
  • the formwork wall can be arranged essentially vertically.
  • the invention also provides a spacer for concrete construction for use between a vertical formwork and a reinforcement element, the spacer consisting of a support part for the reinforcement element and a spacer part for insertion between the formwork and the reinforcement element.
  • the spacer part is trough-shaped in cross section and open in the direction of the support part, and forms an abutment area in the opposite direction.
  • the spacer is in particular formed by at least one boundary surface, advantageously by two flat boundary surfaces delimiting the gutter.
  • the support part is formed in particular by at least one flange, advantageously by one flange per boundary surface.
  • the invention also provides a spacer for concrete construction for use between a formwork and a reinforcement element, the spacer comprising a contact area for arrangement on the vertical formwork, and a support for the reinforcement element, the contact area being linear.
  • the invention further provides a shuttering and reinforcement arrangement with one of the aforementioned spacers which extends in the vertical direction and at least one reinforcement element which is arranged on the support of the spacer and extends in the horizontal direction. This enables an advantageous design of a reinforced concrete wall to be achieved.
  • FIG. 1 a formwork and reinforcement arrangement according to an embodiment of the invention is shown in a sectional side view.
  • the formwork and reinforcement arrangement comprises a spacer 1, a reinforcement element 2 arranged on or in the spacer 1 in the form of a reinforcement bar, and a formwork wall 3 which is arranged above a drape catch element 4 of the spacer 1.
  • the spacer 1 has a substantially L-shaped cross-section, with a long L-leg 5 and a short L-leg 6, with an angled portion 7 opposite the long L-leg 5. Open in the long L-leg are upward Slots 8 are provided, which extend up to a height h1 above the lower contact surface of the spacer 1. The height h2 of the bend 7 corresponds to the height h1.
  • a first support through the lower end of the slot 8, and a second support through the upper edge of the bend 7 is formed.
  • a horizontally arranged reinforcement element 2, in particular in the form of a reinforcement bar, can then be arranged on these supports, as in FIG Figure 1 shown.
  • the formwork wall 3 is arranged on the spacer 1.
  • the formwork wall can in particular be connected to the long L-leg 5 of the spacer 1 and / or to the reinforcement elements 2. If the slots 8 do not extend into the lower region of the spacer 1, the long L-leg 5 in the lower region of the spacer 1 takes over the function of the formwork wall.
  • the formwork wall 3 is designed in particular as an expanded metal grid or as a perforated plate.
  • a fresh concrete composite film 10 can be provided under the spacer 1 on the floor surface or the horizontal formwork 9. This can protect the floor surface or formwork 9 from contamination. If liquid concrete is now poured into the first concreting section BA1, it fills the concreting section BA1 up to the formwork wall 3. A small part of the liquid concrete passes through the openings in the formwork wall 3 and, after hardening, forms a connecting surface for the liquid concrete subsequently filled in the concreting section BA2. If the concreting sections BA1 and BA2 are sections of a ceiling, the formwork 9 is removed in the concreting sections BA1 and BA2 after the concrete has hardened.
  • concrete slurry i.e. liquid concrete components
  • the concrete slurry then runs as in Figure 1 shown, down on the formwork wall 3 or drips down at a short distance from it.
  • the liquid concrete slurry is collected in the slurry collecting element 4, which is formed by the lower region of the long L-leg 5, the short L-leg 6 and its bend 7.
  • the slurry can fill the channel-shaped collecting element up to the height h1 or h2 without the floor area in the concreting section BA2 becoming dirty.
  • closure elements for the stillage collecting element can be provided, so that it has a trough-shaped structure.
  • the stillage collecting element can also be left open in these areas, as in Figure 2 shown so that the stillage can drain into areas that are not critical for contamination.
  • the spacer 1 can be manufactured in particular as a bent part from a metal sheet or as a plastic profile part.
  • FIG 3 Another embodiment of a spacer according to the invention is shown in a perspective view.
  • stillage collecting elements 4, 11 are arranged symmetrically on both sides by a central long L-leg 5.
  • further supports are provided by the bends 7 and 12.
  • the short L-legs 6 and 13 can be formed from only one metal sheet, which is designed as a bent part with respect to the bends 7 and 12.
  • the long L-leg 5 can be formed as a plate part in which only the slots 8 are provided.
  • the bent part and the plate part can be connected in particular by welding, as represented by the weld seam 14.
  • the formwork wall 3 can be arranged either over the short L-leg 6 or over the short L-leg 13. It can thus be ensured that the stillage emerging from the formwork wall 3 is always collected by one of the stillage collecting elements 4, 11.
  • FIG 4 a sectional view of a further embodiment of the formwork and reinforcement arrangement according to the invention is shown.
  • the spacer 1 according to the invention used therein has a long leg 15 which is connected to a short leg 17 via a channel-shaped region 16.
  • the long leg 15, trough-shaped region 16 and short leg 17 can be designed as an integral bent part.
  • the short leg 17 can in turn be configured such that the heights h1, h2 of the supports are the same.
  • a reinforcement element 2 is placed on this support, which is advantageously connected to a formwork wall 3.
  • the design according to Figure 4 the advantage that after filling the concrete sections BA1 and BA2 with concrete, a lower continuous concrete surface is formed, which is formed by the concrete in the concrete section BA1, the support element 18 made of concrete, and the concrete in the concrete section BA2.
  • the contact element 18 can be made in particular of fiber concrete.
  • FIG. 5 A spacer 1 is shown, the stillage collecting element 4 of which is formed by two delimiting surfaces 20, 21 arranged at an acute angle, so that a linear contact area 22 is formed.
  • the boundary surfaces 20, 21 form a spacer 28 of the spacer 1.
  • boundary surfaces 20, 21 are flat, so that the stillage collecting element 4 is essentially in the form of a V-shaped channel.
  • Flange regions 23, 24, which form a support part 29, adjoin the boundary surfaces 20, 21 essentially horizontally and at the same height h1, h2.
  • the support part 29 provides a support for at least one reinforcement element 2.
  • openings 25 can be provided in the flange regions 23, 24, which enable the reinforcement elements 2 to be fastened by means of a fastening means, for example a wire rod.
  • the reinforcement element 2 is in particular a reinforcement bar.
  • the spacer 1 has a substantially vertically extending receiving wall 26, in which slots 8 are provided, in which - as in the previous embodiments - the reinforcing elements 2, in particular reinforcing bars, can be received.
  • FIG 6 is the use of the spacer 1 according to Figure 5 between two concreting sections BA1, BA2. Concrete slurry emerging from the formwork wall 3 is caught in the slurry collecting element 4.
  • the spacer 1 with the flange regions 23, 24 provides secure contact surfaces for the reinforcement elements 2. If, for example, the concreting sections BA1 and BA2 form a ceiling, the spacer 1 is almost completely covered by concrete of the concreting sections BA1 and BA2 and can only be seen in its linear region 22. The spacer can thus be protected from external influences and a visually continuous ceiling can be created.
  • a wall can be concreted in which the horizontal reinforcing bars 2 and the vertical reinforcing bars 27 can be held at a defined distance from the vertical formwork 9, whereby the area of the spacer which is not covered by concrete can be minimized.
  • the horizontal reinforcing bars 2 are advantageously held in the slots 8 at the desired positions.

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  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Forms Removed On Construction Sites Or Auxiliary Members Thereof (AREA)
  • Reinforcement Elements For Buildings (AREA)
EP19215488.8A 2018-12-28 2019-12-12 Disposition du coffrage et de l'armature Active EP3674495B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE202018107450.4U DE202018107450U1 (de) 2018-12-28 2018-12-28 Abstabdshalter für den Betonbau mit Schlempenauffangelement

Publications (2)

Publication Number Publication Date
EP3674495A1 true EP3674495A1 (fr) 2020-07-01
EP3674495B1 EP3674495B1 (fr) 2023-07-05

Family

ID=65817460

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19215488.8A Active EP3674495B1 (fr) 2018-12-28 2019-12-12 Disposition du coffrage et de l'armature

Country Status (2)

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EP (1) EP3674495B1 (fr)
DE (1) DE202018107450U1 (fr)

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1958266U (de) 1967-01-28 1967-04-06 Reuss & Co Abstandhalter fuer bewehrungseisen.
EP0039661A2 (fr) * 1980-05-01 1981-11-11 Heinz Witschi Utilisation d'éléments en métal déployé comme coffrage perdu
AU4438293A (en) * 1992-08-03 1994-02-10 Steel Products Limited Element for forming controlled cracks in concrete slabs
EP0586867A1 (fr) 1992-09-08 1994-03-16 Peca-Verbundtechnik Gmbh Coffrage d'about
KR101785721B1 (ko) * 2016-11-22 2017-10-16 에스와이스틸텍 주식회사 데크플레이트용 스페이서

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1958266U (de) 1967-01-28 1967-04-06 Reuss & Co Abstandhalter fuer bewehrungseisen.
EP0039661A2 (fr) * 1980-05-01 1981-11-11 Heinz Witschi Utilisation d'éléments en métal déployé comme coffrage perdu
AU4438293A (en) * 1992-08-03 1994-02-10 Steel Products Limited Element for forming controlled cracks in concrete slabs
EP0586867A1 (fr) 1992-09-08 1994-03-16 Peca-Verbundtechnik Gmbh Coffrage d'about
KR101785721B1 (ko) * 2016-11-22 2017-10-16 에스와이스틸텍 주식회사 데크플레이트용 스페이서

Also Published As

Publication number Publication date
EP3674495B1 (fr) 2023-07-05
DE202018107450U1 (de) 2019-03-07

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