EP2143851B1 - Elément d'armature pour l'absorption de forces dans les bords latéraux de plaques en béton aux alentours d'éléments d'appui - Google Patents

Elément d'armature pour l'absorption de forces dans les bords latéraux de plaques en béton aux alentours d'éléments d'appui Download PDF

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Publication number
EP2143851B1
EP2143851B1 EP08159976.3A EP08159976A EP2143851B1 EP 2143851 B1 EP2143851 B1 EP 2143851B1 EP 08159976 A EP08159976 A EP 08159976A EP 2143851 B1 EP2143851 B1 EP 2143851B1
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EP
European Patent Office
Prior art keywords
reinforcing element
bar
anchoring
region
element according
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Application number
EP08159976.3A
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German (de)
English (en)
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EP2143851A1 (fr
Inventor
Urs Oelhafen
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FJ Aschwanden AG
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FJ Aschwanden AG
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Priority to EP08159976.3A priority Critical patent/EP2143851B1/fr
Publication of EP2143851A1 publication Critical patent/EP2143851A1/fr
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    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
    • E04B5/00—Floors; Floor construction with regard to insulation; Connections specially adapted therefor
    • E04B5/43—Floor structures of extraordinary design; Features relating to the elastic stability; Floor structures specially designed for resting on columns only, e.g. mushroom floors
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
    • E04C5/00—Reinforcing elements, e.g. for concrete; Auxiliary elements therefor
    • E04C5/01—Reinforcing elements of metal, e.g. with non-structural coatings
    • E04C5/06—Reinforcing elements of metal, e.g. with non-structural coatings of high bending resistance, i.e. of essentially three-dimensional extent, e.g. lattice girders
    • E04C5/0645—Shear reinforcements, e.g. shearheads for floor slabs

Definitions

  • the present invention relates to a reinforcing element for receiving forces in the edge regions of concrete slabs in the region of supporting elements, in particular columns and supporting walls, which reinforcing element is formed essentially of steel.
  • Concrete ceilings of buildings of any kind which are supported for example at the edge regions by columns or supporting walls, must be designed in these areas so that the supporting forces can be optimally introduced into the concrete slabs. In particular, this applies to the shear forces to which the concrete slabs are exposed in the support area. In order to absorb these forces, the concrete floors are reinforced by inserting reinforcing steel.
  • reinforcing baskets which are formed of a plurality of juxtaposed U-shaped reinforcing steel straps, which are interconnected by cross bars. These reinforcing baskets can then be integrated into and connected to the upper and lower reinforcement layers of the concrete floor.
  • Such reinforcement baskets are not very easy to use, since they require a relatively large amount of space and therefore storage and transport to the site of these reinforcement baskets are complex. In addition, it has been shown that in such reinforcing baskets the load is limited.
  • the object of the present invention is therefore to provide a reinforcing element for receiving forces in the edge regions of concrete slabs in the region of support elements, in particular columns or supporting walls, which can accommodate large loads, which can be produced easily and inexpensively and in terms of storage and transportation takes up little space.
  • the solution to this problem is characterized by a substantially vertical, plate-shaped back member, at its lower portion at least one, substantially perpendicular thereto aligned, basic bar is attached to the upper region at least one further rod is fixed, which is substantially perpendicular is directed to the back member is provided with a bend, the bent portion is directed at an acute angle ( ⁇ ) against the base rod out and the end portion of this bent portion is connected by means of an anchoring element with the basic rod.
  • the at least one basic rod and the at least one further rod are screwed to the back element, which allows easy mounting.
  • the upper end region and the lower end region of the plate-shaped back element can also each be bent by about 90 °, the at least one base rod and the at least one further rod can be attached to the corresponding bent end regions by welding. As a result, the welds can be optimally executed.
  • a particularly optimal connection between the back element and the base bar or further bar is achieved in that the bent end portions of the plate-shaped back element are provided with slots into which the at least one basic rod and the at least one further rod are respectively inserted and secured by welding.
  • the anchoring element is designed as anchoring plate, with which the at least one basic rod and the end of the at least one further rod are connected, whereby an optimal power transmission is achieved on the concrete slab.
  • the anchoring plate is provided with slots into which the at least one basic rod is inserted and welded to the anchoring plate, whereby an optimal connection is obtained.
  • a further advantageous embodiment of the invention is that the anchoring plate is provided with holes into which the end of the at least one further rod is inserted and welded to the anchoring plate, which in turn results in an optimal connection.
  • these anchoring means are formed by a bent end portion of the respective basic rod, which can be produced very easily and inexpensively.
  • a cost-effective production is also achieved in that the basic rods and the other rods are formed of reinforcing iron.
  • a particularly advantageous embodiment of the invention is that the reinforcing element is formed from a basic rod and two parallel to each other extending, spaced-apart further rods, which is suitable for use and the power in a special way.
  • this inventive reinforcing element 1 is inserted into the edge region 2 of a concrete slab 3.
  • This edge region 2 of the concrete slab 3 is supported by a support or supporting wall 4.
  • the concrete plate 3 and the support 4 are shown here only schematically.
  • the reinforcing element 1 to be inserted into the panel 3 to be concreted has a plate-shaped back element 5.
  • This back element could also be formed from rods.
  • the upper end portion 6 and the lower end portion 7 of this plate-shaped back member 5 are each bent by about 90 °.
  • the bent upper end portion 6 is provided with two longitudinal slots 8, which are aligned parallel to each other and spaced from each other.
  • a longitudinal slot 9 is inserted, aligned parallel to the two longitudinal slots 8 of the bent upper end portion.
  • the one end of a base bar 10 is inserted, for example, a reinforcing rod.
  • a reinforcing rod is welded to the bent lower end portion 7 of the plate-shaped back member 5, whereby an optimal connection between the base bar 10 and plate-shaped back element 5 is achieved.
  • a first area of these further bars 11 and 12 running away from the plate-shaped back element 5 is aligned parallel to the basic bar 10.
  • the two further rods 11 and 12 are then each provided with a bend 13, the bent portion 14 of these two further rods 11 and 12 is at an acute angle ⁇ ( Fig.2 ) directed against the base 10 towards.
  • the end regions of the bent regions 14 of the two further rods 11 and 12 are connected to the base rod 10 via an anchoring element 15.
  • the anchoring element 15 is designed as anchoring plate 16, which is equipped with a longitudinal slot 17. In this Longitudinal slot 17 of the anchoring plate 16, the base rod 10 is inserted, along the longitudinal edges of this longitudinal slot 17, the anchoring plate 16 is welded to the base 10.
  • the anchoring plate 16 is also provided with two holes 18, in which the respective end of the two further rods 11 and 12 is inserted, the ends are also welded to the anchoring plate 16.
  • the ends of the further rods 11 and 12 could be bolted to the anchoring plate in a known manner.
  • the area of the base bar 10 facing away from the plate-shaped back element 5 is additionally equipped with anchoring means 19, which in the present example are formed as a bend of the end area of the base bar 10.
  • anchoring means 19 could also be designed differently, for example, these could be formed by an anchor head, it is also conceivable that the base bar 10 has a length such that the anchorage in the concrete is achieved in sufficient mass.
  • the inventive reinforcing element is configured and inserted into the concrete plate 3 that the substantially perpendicular to the plate-shaped back element 5 extending portions of the other rods 11 and 12, which are aligned parallel to the base bar 10, still above the support 4 to lie, the respective bend 13 is located above the inner edge of the support 4, which at an acute angle to the base 10 toward extending bent portions 13 of the other rods 11 and 12 and the anchoring element 15 are located outside of the support 4 directly supported part of the concrete slab 3.
  • the angle ⁇ formed between the bent regions 14 of the further bars 11 and 12 and the base bar 10 is in a range of about 25 ° to 45 °.
  • the supporting forces are introduced in an optimum manner into the concrete slab.
  • the two other rods 11 and 12 are practically exclusively claimed to train, these tensile forces are introduced on the one hand on the anchoring element 15 and the base rod 10 and on the other hand on the plate-shaped back member in an optimal manner in the concrete slab 3.
  • these reinforcing elements are integrated in the usual reinforcement of such a concrete plate 3, in particular consisting of an upper reinforcement layer and a lower reinforcement layer, which are not shown in the figures.
  • FIGS 3 and 4 are further views of the inventive reinforcing element 1 can be seen. These show the arrangement of the reinforcing elements 1 in the concrete slab 3 with respect to the support 4, to which the plate-shaped back element 5, the base bar 10, the further rods 11 and 12 and the anchoring element 15 can be seen.
  • Fig. 5 shows a reinforcing element 1 inserted into the concrete slab 3 to be supported, to the back element 5 of which the basic bar 10 and the further bars 11, 12 are fastened via a respective known screw 20.
  • FIG. 6 an arrangement of a reinforcing element 1 according to the invention in combination with a known reinforcing element 21 can be seen in a concrete plate 3 to be supported by the support 4.
  • the inventive reinforcing element 1 has a height which allows it to be inserted into the known reinforcing element 21, so that the two can be aligned at right angles to each other.
  • Fig. 7 shows the use of two inventive reinforcing elements 1 in a concrete plate 3, which is supported in a corner region by a support 4.
  • the two reinforcing elements 1 are arranged crosswise, in this case, the one reinforcing element 1 has a lower height than the other, the two reinforcing elements 1 can thereby be pushed into one another.
  • Fig. 8 is a further arrangement of inventive reinforcing elements 1 in combination with the known reinforcing elements 21 for supporting a concrete slab 3 can be seen.
  • two inventive reinforcing elements 1 are inserted at right angles into two mutually parallel known reinforcing elements 21.
  • inventive reinforcing elements 1 and / or known reinforcing elements 21 are possible.
  • the number of rods used can be changed, depending on where and how appropriate reinforcing elements 1 are to be used. It is readily conceivable, for example, to arrange two basic bars 10 parallel next to each other and use three more rods, but it could also be just another rod attached, which is arranged between the two basic bars, depending on the type of load, the reinforcing elements 1 can be designed accordingly
  • reinforcing elements 1 are used to support a concrete slab 3 on a supporting wall, as previously described, usually next to each other in the plate to be concreted 3. Depending on the type of load, the distance between the individual reinforcing elements 1 can be varied accordingly. Depending on the arrangement of the support with respect to the concrete slab can, as previously also been shown, the reinforcing elements are also aligned over the cross.
  • these reinforcing elements are formed of reinforcing steel, depending on the type of use, other materials could be used, such as chrome steel.
  • reinforcing elements optimal absorption of forces in the edge regions of concrete slabs in the range of supports can be achieved, these inventive reinforcing elements are also characterized by easy handling, transport of these reinforcing elements to a construction site and a storage require due to the design these reinforcing elements little space.

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  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Reinforcement Elements For Buildings (AREA)

Claims (11)

  1. Elément d'armature pour l'absorption de forces dans les bords latéraux (2) de plaques en béton (3) au niveau d'éléments d'appui (4), en particulier des supports et des murs porteurs, ledit élément d'armature (1) étant essentiellement constitué d'acier, caractérisé par un élément dorsal (5) essentiellement vertical, en forme de plaque, dans une région inférieure (7) duquel est fixée une tige de base (10), s'étendant dans une direction essentiellement perpendiculaire à celui-ci, et dans une région supérieure (6) duquel est fixée au moins une autre tige (11,12), qui s'étend dans une direction perpendiculaire à l'élément dorsal (5), et qui est pourvu d'une courbure (13), la partie recourbée (14) étant dirigée selon un angle pointu (α) par rapport à la tige de base (10), et la partie terminale de cette partie recourbée (14) étant rattachée à la tige de base (10) à l'aide d'un élément d'ancrage (15).
  2. Elément d'armature selon la revendication 1, caractérisé en ce que ladite au moins une tige de base (10) et ladite au moins une autre tige (11, 12) sont vissées à l'élément dorsal (5).
  3. Elément d'armature selon la revendication 1, caractérisé en ce que l'extrémité supérieure (6) et l'extrémité inférieure (7) de l'élément dorsal (5) sont courbées chacune d'environ 90° et que ladite au moins une tige de base (10) et ladite au moins une autre tige (11,12) sont fixées aux extrémités correspondantes par soudage.
  4. Elément d'armature selon la revendication 3, caractérisé en ce que les extrémités (6,7) recourbées sont pourvues de fentes (8, 9), dans lesquelles ladite au moins une tige de base (10) et ladite au moins une autre tige (11,12) sont chacune insérées et fixées par soudage.
  5. Elément d'armature selon l'une des revendications 1 à 4, caractérisé en ce que l'élément d'ancrage (15) est agencé comme une plaque d'ancrage (16), à laquelle ladite au moins une tige de base (10) et l'extrémité de ladite au moins une autre tige (11,12) sont rattachées.
  6. Elément d'armature selon la revendication 5, caractérisé en ce que la plaque d'ancrage (16) est pourvue de fentes (17), dans lesquelles est insérée ladite au moins une tige de base (10) et est soudée à la plaque d'ancrage (16).
  7. Elément d'armature selon la revendication 5 ou 6, caractérisé en ce que la plaque d'ancrage (16) est pourvue de trous (18), dans lesquels l'extrémité de ladite au moins une tige supplémentaire (11, 12) est insérée et soudée avec la plaque d'ancrage (16).
  8. Elément d'armature selon l'une quelconque des revendications 1 à 7, caractérisé en ce que la zone de ladite au moins une tige de base (10) opposée à l'élément dorsal (5) est équipée de moyens d'ancrage (19).
  9. Elément d'armature selon la revendication 8, caractérisé en ce que les moyens d'ancrage (19) sont formés par une extrémité recourbée des tiges de base (10) respectives.
  10. Elément d'armature selon l'une des revendications 1 à 9, caractérisé en ce que les tiges de base (10) et les autres tiges (11, 12) sont constituées de fers d'armature.
  11. Elément d'armature selon l'une des revendications 1 à 10, caractérisé en ce que celui-ci est formé d'une tige de base (10) et de deux autres tiges (11, 12) dirigées parallèlement l'une par rapport à l'autre, et éloignées l'une de l'autre.
EP08159976.3A 2008-07-09 2008-07-09 Elément d'armature pour l'absorption de forces dans les bords latéraux de plaques en béton aux alentours d'éléments d'appui Active EP2143851B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP08159976.3A EP2143851B1 (fr) 2008-07-09 2008-07-09 Elément d'armature pour l'absorption de forces dans les bords latéraux de plaques en béton aux alentours d'éléments d'appui

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP08159976.3A EP2143851B1 (fr) 2008-07-09 2008-07-09 Elément d'armature pour l'absorption de forces dans les bords latéraux de plaques en béton aux alentours d'éléments d'appui

Publications (2)

Publication Number Publication Date
EP2143851A1 EP2143851A1 (fr) 2010-01-13
EP2143851B1 true EP2143851B1 (fr) 2016-08-17

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EP08159976.3A Active EP2143851B1 (fr) 2008-07-09 2008-07-09 Elément d'armature pour l'absorption de forces dans les bords latéraux de plaques en béton aux alentours d'éléments d'appui

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Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH702392A2 (de) * 2009-12-03 2011-06-15 Fischer Rista Ag Bewehrungsvorrichtung.

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1078510A (en) * 1906-09-25 1913-11-11 Daniel B Luten Concrete-reinforcement.
FR393055A (fr) * 1908-06-06 1908-12-12 Julian O Ellinger Armature pour constructions en ciment, ou matériaux analogues
GB192198A (en) * 1921-11-07 1923-02-01 Arnhold Brothers And Company L Improvements in reinforcements for reinforced concrete
US1938491A (en) * 1932-05-11 1933-12-05 Mcmillan Robert Edward Structural units for steel frame buildings and the like
US3283458A (en) 1958-02-25 1966-11-08 Gersovitz Benjamin Shear reinforcement in reinforced concrete floor systems
AT396151B (de) * 1987-03-11 1993-06-25 Avi Alpenlaendische Vered Anschlusselement fuer kragplatten sowie aus mehreren anschlusselementen zusammengesetztes anschlusselement
DE29808491U1 (de) * 1998-05-11 1999-09-23 Dausend Hans Werner Bewehrungselement für Schubbewehrungen
ES2389563T3 (es) * 2006-12-14 2012-10-29 F.J. Aschwanden Ag Elemento de armadura para la absorción de fuerzas en placas hormigonadas en el sector de elementos de apoyo

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