EP2295668A1 - Distanceur pour armature dans la construction en béton armé - Google Patents

Distanceur pour armature dans la construction en béton armé Download PDF

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Publication number
EP2295668A1
EP2295668A1 EP09170343A EP09170343A EP2295668A1 EP 2295668 A1 EP2295668 A1 EP 2295668A1 EP 09170343 A EP09170343 A EP 09170343A EP 09170343 A EP09170343 A EP 09170343A EP 2295668 A1 EP2295668 A1 EP 2295668A1
Authority
EP
European Patent Office
Prior art keywords
spacer
connecting element
spacers
reinforcement
recess
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Withdrawn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
EP09170343A
Other languages
German (de)
English (en)
Inventor
David Trivett
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.)
Max Frank GmbH and Co KG
Original Assignee
Max Frank GmbH and Co KG
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 Max Frank GmbH and Co KG filed Critical Max Frank GmbH and Co KG
Priority to EP09170343A priority Critical patent/EP2295668A1/fr
Publication of EP2295668A1 publication Critical patent/EP2295668A1/fr
Withdrawn legal-status Critical Current

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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
    • E04C5/20—Auxiliary parts for reinforcements, e.g. connectors, spacers, stirrups of material other than metal or with only additional metal parts, e.g. concrete or plastics spacers with metal binding wires

Definitions

  • the present invention relates to a spacer for a reinforcement in reinforced concrete construction.
  • Spacers are used in reinforced concrete construction to hold a reinforcement inside, ie at a predetermined distance to the outer surface of the concrete part to be produced.
  • spacers are placed between the reinforcement and the formwork, on which the reinforcement rests with its reinforcement struts.
  • Such a spacer is for example in the DE 2 313 509 shown.
  • spacers solve the basic task comparatively well, namely to keep the reinforcements at a predetermined distance from the formwork
  • the handling of such spacers is somewhat problematic, especially when many spacers must be used. So the spacers can easily move against each other.
  • the spacers may shift or tip over as the concrete presses against a side surface of the spacer, thus pushing it away from under the reinforcement.
  • the spacer includes a preferably perforated structure having two opposite sides.
  • the first side faces the reinforcement and serves as an attachment to the reinforcement and the second side serves as a support on / attachment to the formwork.
  • the spacers have at least one connecting region, preferably in the form of latching means, with which they can be fastened to at least one connecting element.
  • the connecting element is not part of the reinforcement and serves to connect a plurality of spacers together and thereby form a spacer assembly.
  • the connecting region, or the latching means may be formed so that the spacer is non-positively and / or positively connected to the connecting element.
  • a spacer assembly can either be prefabricated or mounted very quickly and easily on site.
  • the connecting element may have all possible shapes, e.g. as lattice struts or parallel and / or transversely extending bars.
  • the connecting element is designed as a strut, in which case it can be easily engaged behind the frictional means on the spacers or positively gripped.
  • the strut is preferably made of plastic, concrete or metal. It can have any shape, for example as a profile strut, for example, with a rectangular, square elliptical or circular cross-section. In the case of a non-circular cross-section of the profile strut, the spacers can even tilt hold the connecting element.
  • the dacaslement is formed of reinforcing wire, because it causes no weakening of the concrete in the finished concrete part but an additional reinforcement and thus additional reinforcement of the concrete.
  • the latching means are formed as a recess in the manner of a groove or latching groove, which engages behind the connecting element at least partially.
  • the recess at least partially elastic wall portions, e.g. Ridges, which, because of their shape and / or elasticity, embrace or elastically abut the connecting element, so that the spacer can be simply clipped onto the connecting element.
  • Such a recess is also easy to produce and low in the spacer production manufacturable.
  • the support area for the reinforcement is designed as a support surface, so that a support area of a certain size is formed for the reinforcement, which can absorb the forces well.
  • the support surface is preferably on at least one at an angle> 20 degrees, preferably transverse to the support structure extending reinforcing struts of the reinforcement, whereby the spacers rest against tip over the reinforcement.
  • the support surface could in principle extend from the support structure to one side. Preferably, however, the support surface extends to both sides of the support structure. In this way, the highest possible stability in the support of the reinforcement is achieved.
  • the support region can also be formed alone in the region of the latching means, for example by the recess itself.
  • the latching means are also preferably arranged there.
  • this is preferably arranged in the support surface. It then preferably extends longitudinally and / or transversely to the preferably elongated spacer, so that the spacers are held transversely or longitudinally on the connecting element.
  • recesses extend longitudinally as well as transversely in the support surface, in which case the spacer is usable longitudinally as well as transversely for both attachment arrangements.
  • the structure between these two sides of the spacer is preferably broken, e.g. in the manner of a grid or strut construction with a high proportion of perforations, so that the concrete can easily flow from one side to the other through the perforated area of the spacer, without pushing the spacer away or forming bubbles.
  • the good flow results in a better flow behavior of the concrete and thus better concrete body with less air inclusions.
  • the area fraction of openings in the support structure ie the area ratio of openings to the support structure as a whole should preferably be higher than 60%, in particular higher than 70%. Preference is given to structures which have more than 80% perforations. Such structures can be achieved by strut structures or lattice structures, e.g. by a zigzag strut or X-shaped struts running between the two sides.
  • the recess for receiving the connecting element is preferably formed in alignment with the support structure. However, the recess may also be formed at another location parallel to the support structure or at any angle to the support structure.
  • the depression can preferably also be designed so that it is designed for a positive and / or non-positive interaction with the connecting element.
  • the second side of the support structure intended to abut the formwork is formed as a support edge parallel to the first side, i. is formed parallel to the support surface.
  • the second side may also have individual feet or bases and does not have to be formed as a continuous support edge.
  • the spacer is made of plastic, in particular as a one-piece injection-molded part.
  • the spacer is inexpensive to produce, easy to store and handle.
  • the elastic properties of the wall regions of the depression for fixing the spacer to the reinforcement can be achieved so that a frictional or positive engagement of the wall regions of the depression on the reinforcement is achieved.
  • the locking means designed as a recess or latching groove is formed in a very stable and easy to manufacture embodiment in a bead on the first side of the support structure. From the bead then extend on both sides of the support surface of the spacer.
  • the depression may preferably have elastic regions which engage around a connecting element pressed into the depression in the manner of a snap closure.
  • the diameter of the recess should be slightly larger than the diameter of the connecting element.
  • the combination of the support surface with the recess is essential, because while the support surface rests on at least one more transverse to the openwork supporting structure extending reinforcement, which ensures that the spacer does not tilt away sideways, ensures the interaction of recess and connecting element, preferably the positive and / or non-positive engagement for the fact that the spacers are held displaceable relative to each other. Especially for larger concrete parts requiring a larger number of spacers, this ensures easy handling of the spacers. The spacer can thus unfold its function effectively. Neither a shift or a lifting of the reinforcement nor the filling of concrete can then lead to a detachment or tilting of individual spacers.
  • the spacer 10 includes a planar perforated support structure 12 extending along the plane of symmetry d and having on its upper side 13 a bead 17 in which a recess 20 facing the reinforcement is formed. From the recess 20 in both directions, a support surface 14 extends transversely to the support structure 12. On its underside 15, the support structure 12 has a support edge 16 for support on a formwork. The recess 20 formed in the bead 17 is thus formed centrally in the support surface 14 in alignment with the support structure 12. The support surface 14 serves to bear on a transverse to the support structure extending strut 18 of a reinforcement to be supported.
  • the recess 20 is designed for the positive and / or non-positive gripping of a parallel to the support structure 12 extending connecting element 22, preferably in the form of a reinforcing wire.
  • This connecting element serves to connect the spacers.
  • the connecting element made of reinforcing wire is not part of the reinforcement to be supported.
  • spacers 10 which are held at a distance from the spacer 10 shown on the acting as a connecting element reinforcing wire 22.
  • the spacers 10 are thus held longitudinally on the connecting element 22 in this embodiment.
  • they can also be held transversely to their longitudinal axis on the connecting element 22, in which case a recess 20 must alternatively or additionally be provided transversely to the longitudinal axis.
  • a plurality of connecting elements in parallel, in which case, of course, correspondingly arranged latching means, e.g. several mutually parallel recesses must be provided.
  • the support structure 12 consists of a zigzag strut 24 which extends in a zigzag shape between the support surface 14 and the support edge 16.
  • the area fraction of the apertures in the support structure 12 is more than 80%, preferably more than 90%.
  • FIG. 3 shows one too FIG. 2 alternative embodiment in which the support structure 12 is formed by spaced apart x-shaped struts 26 extending between the support surface 14 and the support edge 16. Again, a very high area fraction of openings is achieved relative to the total area of the support structure 12. The liquid concrete can thus easily flow through the spacer from one side to the other, resulting in more homogeneous denser concrete bodies.
  • the support structure 12 between the support surface 14 and the support edge 16 have a different height.
  • the spacer 10a is like the spacer 10b made Fig. 2 educated.
  • the height between the support surface 14 and the support edge 16 is h1 and is significantly greater than the height h2 of the spacer 10b, which is otherwise identical to the spacer 10a. It can thus be easily produced, for example by injection molding spacers with different heights, resulting in different distances of the Reinforcement of the formwork allows.
  • the spacer ages of the invention can be used to support the reinforcement against the floor and / or the side walls of the formwork and to ensure a desired minimum distance.
  • FIG. 5 shows two examples of spacer assemblies, wherein the spacers may be formed according to one of the previous embodiments.
  • the spacers 10 are secured to the connector transversely to their longitudinal axis.
  • the spacer assembly 8 which the FIGS. 1 to 4 corresponds, they are held along the longitudinal axis of the connecting element 22. It can also spacers 10 are held on a connecting element 22 longitudinally and transversely.
  • the locking means other angles than 0 and 90 degrees are possible, for example 45 degrees.
  • the invention has the advantage over spacers, which are optionally directly connectable to the reinforcement, that not different spacers for reinforcements with different strength reinforcing wires must be kept.
  • a connecting element which is not part of the reinforcement, the connection of the spacers is independent of the reinforcement, so that the spacer assembly according to the invention can be used with the spacers and connecting element (s) according to the invention for all strengths of reinforcements.

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  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Reinforcement Elements For Buildings (AREA)
EP09170343A 2009-09-15 2009-09-15 Distanceur pour armature dans la construction en béton armé Withdrawn EP2295668A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP09170343A EP2295668A1 (fr) 2009-09-15 2009-09-15 Distanceur pour armature dans la construction en béton armé

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP09170343A EP2295668A1 (fr) 2009-09-15 2009-09-15 Distanceur pour armature dans la construction en béton armé

Publications (1)

Publication Number Publication Date
EP2295668A1 true EP2295668A1 (fr) 2011-03-16

Family

ID=41664616

Family Applications (1)

Application Number Title Priority Date Filing Date
EP09170343A Withdrawn EP2295668A1 (fr) 2009-09-15 2009-09-15 Distanceur pour armature dans la construction en béton armé

Country Status (1)

Country Link
EP (1) EP2295668A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102015001222A1 (de) 2014-02-07 2015-08-13 Alois Kappelsberger Abstandshalter für eine Bewehrung im Stahlbetonbau

Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3209509A (en) * 1961-12-05 1965-10-05 Universal Builders Supply Co I Devices for concrete reinforcement
DE1484261A1 (de) * 1962-03-02 1969-05-29 Atanas Igoris Befestigungseinrichtung fuer zum Einbetonieren bestimmte Armierungsstahlstaebe
FR2118951A1 (fr) * 1970-12-21 1972-08-04 Sogedic Sa
DE2313509A1 (de) 1972-03-18 1973-12-13 Joseph Patrick Toner Abstandshalter zum verlegen der bewehrung in betonbauteilen
DE2616340A1 (de) * 1976-04-14 1977-11-03 Fischer Draht Ag Armierung fuer betonrohre o.dgl.
EP0049529A1 (fr) * 1980-10-08 1982-04-14 Jozo Akrapovic Pièce de séparation pour le support de treillis soudés
DE19638345A1 (de) * 1996-09-19 1998-03-26 Exte Extrudertechnik Gmbh Bewehrungseinheit zur Armierung von Betonwerken oder dergleichen
DE10100454A1 (de) * 2000-12-06 2002-06-13 Erdin Peter Abstandhalter für eine Bewehrung
US20040031228A1 (en) * 2002-08-14 2004-02-19 Hardy Robert M. Apparatus for placing rebar in continuously reinforced concrete paving
US20090044481A1 (en) * 2005-01-18 2009-02-19 Turek James N Rebar, beam and mesh highchair

Patent Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3209509A (en) * 1961-12-05 1965-10-05 Universal Builders Supply Co I Devices for concrete reinforcement
DE1484261A1 (de) * 1962-03-02 1969-05-29 Atanas Igoris Befestigungseinrichtung fuer zum Einbetonieren bestimmte Armierungsstahlstaebe
FR2118951A1 (fr) * 1970-12-21 1972-08-04 Sogedic Sa
DE2313509A1 (de) 1972-03-18 1973-12-13 Joseph Patrick Toner Abstandshalter zum verlegen der bewehrung in betonbauteilen
DE2616340A1 (de) * 1976-04-14 1977-11-03 Fischer Draht Ag Armierung fuer betonrohre o.dgl.
EP0049529A1 (fr) * 1980-10-08 1982-04-14 Jozo Akrapovic Pièce de séparation pour le support de treillis soudés
DE19638345A1 (de) * 1996-09-19 1998-03-26 Exte Extrudertechnik Gmbh Bewehrungseinheit zur Armierung von Betonwerken oder dergleichen
DE10100454A1 (de) * 2000-12-06 2002-06-13 Erdin Peter Abstandhalter für eine Bewehrung
US20040031228A1 (en) * 2002-08-14 2004-02-19 Hardy Robert M. Apparatus for placing rebar in continuously reinforced concrete paving
US20090044481A1 (en) * 2005-01-18 2009-02-19 Turek James N Rebar, beam and mesh highchair

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102015001222A1 (de) 2014-02-07 2015-08-13 Alois Kappelsberger Abstandshalter für eine Bewehrung im Stahlbetonbau

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