EP2851479A2 - Verstärkungssystem gegenüber der Strebenlage mit Stangen auf Querstangen, die mit Ankerköpfen ausgestattet sind - Google Patents

Verstärkungssystem gegenüber der Strebenlage mit Stangen auf Querstangen, die mit Ankerköpfen ausgestattet sind Download PDF

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Publication number
EP2851479A2
EP2851479A2 EP14000488.8A EP14000488A EP2851479A2 EP 2851479 A2 EP2851479 A2 EP 2851479A2 EP 14000488 A EP14000488 A EP 14000488A EP 2851479 A2 EP2851479 A2 EP 2851479A2
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EP
European Patent Office
Prior art keywords
rods
bars
curved
straight
punching
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
EP14000488.8A
Other languages
English (en)
French (fr)
Other versions
EP2851479A3 (de
EP2851479B1 (de
Inventor
Aurelio Muttoni
Miguel Fernández Ruiz
Marc Barras
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.)
Ancotech AG
Original Assignee
Ancotech AG
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 Ancotech AG filed Critical Ancotech AG
Publication of EP2851479A2 publication Critical patent/EP2851479A2/de
Publication of EP2851479A3 publication Critical patent/EP2851479A3/de
Application granted granted Critical
Publication of EP2851479B1 publication Critical patent/EP2851479B1/de
Active legal-status Critical Current
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Classifications

    • 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 [3D] extent, e.g. lattice girders
    • E04C5/0645—Shear reinforcements, e.g. shearheads for floor slabs

Definitions

  • the support zones of reinforced and / or prestressed concrete slabs are subjected to very high bending and shearing forces. They are thus often determining for the resistance and the capacity of deformation of the structure [1].
  • transverse reinforcement is the solution most often used. It allows the efficient use of the material with the arrangement of the elements (steel) with high strength and ductility.
  • the performance of the different systems depends strongly on the quality of the anchorage (forged or welded heads, anchoring by adhesion) and the structural rules applied to the system (spacing of the transverse reinforcement, quantity of reinforcement available ( figure 3 [2,3]).
  • the rods are made of standard or high strength steel bars with two anchor heads (one at each end of the bar, figure 4 ).
  • the bars can be straight or curved.
  • the curvature can be obtained by a succession of point bends or by a constant bending radius, and straight zones can also be envisaged according to the static behavior of the system and the method of manufacturing the parts.
  • the curved rods which are more statically efficient, are arranged close to the bearing region (where the forces are maximal) whereas the straight pieces are arranged in more distant regions subject to lower forces, see figure 4 .
  • the stems are arranged radially from the edge of the column ( figure 5 ) with variable number depending on the degree of stress.
  • the combination of curved and straight pieces is envisaged.
  • vertical straight pieces are envisaged in order to facilitate the laying of the reinforcement (see figure 5 ).
  • This system also targets an optimization of the cost of the product with special parts (curves) in the region where the solicitations are more important and straight parts (more economical and easy to dispose) in less busy areas or with increased installation difficulties. See as well Figures 6A at 8.
  • the object of the invention is to enable the reinforcement against punching of concrete slabs subjected to very high concentrated loads.
  • the goal in terms of strength is to exceed those of similar products (punching rebar systems) currently in the market.
  • This product could be used as a replacement for more efficient (and more expensive) products such as metal heads against punching.
  • Another objective of this product is to improve the deformation capacity of the slabs, similar to the raised bars. This will allow the use of this system as an integrity armature (reinforcement to prevent slab collapse after accidental punching).

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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)
EP14000488.8A 2013-02-12 2014-02-12 Verstärkungssystem gegenüber der Strebenlage mit Querstangen, die mit Ankerköpfen ausgestattet sind Active EP2851479B1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH00566/13A CH707571A1 (fr) 2013-02-12 2013-02-12 Système de renforcement contre le poinçonnement avec des tiges ou des barres transversales ayant des têtes d'ancrage.

Publications (3)

Publication Number Publication Date
EP2851479A2 true EP2851479A2 (de) 2015-03-25
EP2851479A3 EP2851479A3 (de) 2015-06-03
EP2851479B1 EP2851479B1 (de) 2017-06-14

Family

ID=51301029

Family Applications (1)

Application Number Title Priority Date Filing Date
EP14000488.8A Active EP2851479B1 (de) 2013-02-12 2014-02-12 Verstärkungssystem gegenüber der Strebenlage mit Querstangen, die mit Ankerköpfen ausgestattet sind

Country Status (5)

Country Link
EP (1) EP2851479B1 (de)
CH (1) CH707571A1 (de)
DK (1) DK2851479T3 (de)
ES (1) ES2640338T3 (de)
PT (1) PT2851479T (de)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DK3070225T3 (da) 2015-03-17 2020-03-02 Halfen Gmbh Gennemstansningsarmeringselement og konstruktion med en plade med et gennemstansningsarmeringselement

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2930221A (en) * 1951-10-20 1960-03-29 Lally Column Co Head plate for structural columns
DE29820985U1 (de) * 1998-10-07 1999-01-28 Frisch, Hans, 89343 Jettingen-Scheppach Schubbewehrungselement zur Schubbewehrung von Stahlbetonplatten und Stahlbetonplatte
JP2005133360A (ja) * 2003-10-29 2005-05-26 Hitachi Plant Eng & Constr Co Ltd ジベル後入れ型埋込金物
DE102004040584A1 (de) * 2004-08-21 2006-02-23 Schöck Bauteile GmbH Bauelement zur Schubbewehrung
EP1754843A1 (de) * 2005-08-18 2007-02-21 SCHÖCK BAUTEILE GmbH Bauelement zur Schubbewehrung
EP2239391A1 (de) * 2009-04-06 2010-10-13 Ecole Polytechnique Fédérale de Lausanne Bewehrungselement für eine Betonkonstruktion
US8220219B2 (en) * 2010-12-03 2012-07-17 Martter Richard P Reinforcing assembly, and reinforced concrete structures using such assembly

Non-Patent Citations (3)

* Cited by examiner, † Cited by third party
Title
FERNÂNDEZ RUIZ, M.; MUTTONI, A.: "Punching shear strength of reinforced concrete slabs with transverse reinforcement", ACI STRUCTURAL JOURNAL, FARMINGTON HILLS, MICH., vol. 106, no. 4, 2009, pages 485 - 494
FERNANDEZ RUIZ, M.; MUTTONI, A: "Performance and design of punching shear reinforcing systems", 3RD INTERNATIONAL FIB CONGRESS, 2010, pages 15
MUTTONI, A.: "Punching shear strength of reinforced concrete slabs without transverse reinforcement", ACI STRUCTURAL JOURNAL, FARMLNGTON HILLS, MICH., vol. 105, no. 4, 2008, pages 440 - 450

Also Published As

Publication number Publication date
DK2851479T3 (en) 2017-09-11
EP2851479A3 (de) 2015-06-03
ES2640338T3 (es) 2017-11-02
PT2851479T (pt) 2017-08-31
EP2851479B1 (de) 2017-06-14
CH707571A1 (fr) 2014-08-15

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