EP2166171B1 - Armature de poinçonnement d'une structure en béton armé contre le poinçonnement aux alentours de la zone d'appui d'une dalle - Google Patents

Armature de poinçonnement d'une structure en béton armé contre le poinçonnement aux alentours de la zone d'appui d'une dalle Download PDF

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Publication number
EP2166171B1
EP2166171B1 EP09012089.0A EP09012089A EP2166171B1 EP 2166171 B1 EP2166171 B1 EP 2166171B1 EP 09012089 A EP09012089 A EP 09012089A EP 2166171 B1 EP2166171 B1 EP 2166171B1
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EP
European Patent Office
Prior art keywords
elements
punching
shear reinforcement
reinforcement
anchor
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EP09012089.0A
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German (de)
English (en)
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EP2166171A1 (fr
Inventor
Thomas Mösch
Marc Barras
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Ancotech AG
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Ancotech AG
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Publication of EP2166171A1 publication Critical patent/EP2166171A1/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 invention relates to a punching shear reinforcement for reinforcing a concrete structure against punching in the area of the support of a ceiling element on a support with a plurality of laterally spaced apart in a near zone laterally of the support ceiling areas adjbetonierenden in the ceiling and transverse to the ceiling surface to be oriented anchor elements.
  • a concrete floor such as a building ceiling as a substantially horizontal or slightly inclined component or as a substructure ofhotelfelzten
  • traffic engineering structures such as ramps or bridges for vehicles of any kind or the like
  • the Nahzone side of the support structure such as a round or polygonal support of steel or concrete or corresponding wall-like structures, and in particular for stand-alone buttresses puncture risks, ie that the concrete ceiling in a near zone demolition and thus collapse is at risk.
  • FIG. 1 represented, in which a welded frame 1 'made of U-iron with an inner web-like cross 2' in a concrete ceiling 3 'in the region of a columnar support 4' is concreted and stored on the column head.
  • the EP 1 223 259 B1 discloses the star or radial arrangement of perforated shear reinforcement sheets.
  • a star-shaped arrangement of perforated sheets for shear reinforcement can also the WO 01/5323 A2 be removed.
  • the DE 202 17 678 U discloses all features of the preamble of claim 1.
  • the object of the invention is to propose a comparatively simple reinforcement arrangement and a corresponding punching reinforcement element.
  • the invention is therefore based on the idea of aligning a plurality of oblong, transverse to the ceiling surface to be oriented anchor elements along a shear reinforcement element and thus relieve the vulnerable concrete cross section in the manner of a truss.
  • It is a rigid shear reinforcement element, which is arranged standing upright, that is approximately parallel to the anchor elements, which are preferably designed in rod form.
  • the anchoring elements and the shear reinforcement element, along which the anchor elements are aligned can in principle be arranged unconnected to one another, since, after setting of the concrete, this establishes an operative connection between the two. They can also be attached temporarily, eg by wire to each other. Preferably, however, they are firmly welded together. As a result, the highest reinforcement effects are achieved and processing is greatly facilitated.
  • the orientation of the plurality of anchor elements along an upright shear reinforcement element can basically be a freely selectable lines, such as a single or multiple waveform or along a polygon, as long as the bending stiffness of the shear reinforcement element is maintained. Preferably, however, the shear reinforcement elements are designed straight stretched.
  • the anchor elements may vary in their lateral distance to the shear reinforcement elements. They are preferably on the shear reinforcement element. They can be arranged on one or both sides of the shear reinforcement element or receive the shear reinforcement element in itself.
  • shear reinforcement elements with the associated Druckbewehrungs- or anchor elements are starry or radial with respect to the support in the near zone they are to be arranged in the ceiling aligned.
  • the thrust resistance in the vulnerable section can be significantly increased by the invention.
  • the compressive strength in the region of the near zone is also significantly improved by the invention.
  • the inventive combination and mutual assignment of the shear and compression reinforcement elements leads to an unexpectedly high stiffening and reduction of punching risks in the support zone and beyond.
  • sheets or metal strips are used as rigid, upright shear reinforcement elements, these are preferably arranged parallel to a plane spanned by the anchor elements reference plane.
  • This shear reinforcement element can also be oriented diagonally to the orientation of the anchor elements, wherein the pitch between the shear reinforcement element and the extension direction of the reinforcement arrangement between 10 and 100%, and particularly preferably in the order of 45%.
  • the shear reinforcement elements are provided with at least one window-like opening.
  • Double-headed anchors consist of an anchor bolt and provided at the ends anchor heads, relatively larger cross-section.
  • the Bügelanker have an elongated shape, wherein bow-like connecting portions between parallel straight elongated areas take over the function of an anchor head.
  • High-strength composite anchors have known distributed over the rod length, distinctive profiles in different designs.
  • the anchor elements may also be arranged obliquely, d. H. at an angle to the vertical.
  • This angle may be greater than about 1 °, preferably this angle to the vertical may be less than about 45 °.
  • the angle between the anchor elements and the vertical is about 20 °. Due to the inclination of the anchor elements relative to the vertical, the static property of the reinforcement arrangement according to the invention is improved, in particular in the case of ceilings whose surfaces have at least one inclination.
  • the anchor elements can also be arranged vertically in the inclined ceiling surface. It is also possible, the anchor elements obliquely, d. H. to arrange with a slope relative to the vertical in a horizontally oriented ceiling. This also applies to ceilings whose ceiling surfaces have no inclination relative to the horizontal.
  • a particularly advantageous clamping of the punching reinforcement element, in particular in the region of its support-side end, end anchoring means may be provided.
  • FIG. 2A can be seen from the outer periphery of a support 4 shown in half from star-shaped apart punching shear elements 10, each consisting of a straight shear reinforcement element 12 and aligned along this anchor elements 14 in the form of double-headed anchors, as in side view FIG. 2B can be seen.
  • All punching shear reinforcement elements are as in FIG. 2B shown, poured into a concrete pavement 3, wherein the parallel planes spanned by the anchor elements 14 on the one hand and by the shear reinforcement elements 12 on the other hand extend approximately at right angles to the surface normal of the concrete pavement 3.
  • ten anchor elements 14 are provided for each punching reinforcement element 10. This number can be bigger and smaller.
  • the length of the punching reinforcement elements in the direction of the longitudinal extension of the shear reinforcement elements will vary depending on the application and requirement.
  • FIG. 3A is the punching reinforcement element 10 can be seen, which in FIG. 2B Use finds.
  • the shear reinforcement element also consists of a sheet metal strip, while the anchor elements 14 consist of a bracket with two upright parallel struts 14A and connecting them at the upper and lower ends U-shaped brackets 14B, wherein the shear reinforcement element is mounted with respect to one of the struts 14A in the temple interior.
  • FIG. 3C shows a similar embodiment as in FIG FIG. 3A with the difference that as anchor elements, for example by roll deformation profiled bars are used with ring-like stiffening and Verkrallmaschinen.
  • Figure 3D is the embodiment to FIG. 3C modified in such a way that the anchor elements are arranged alternately on the sides of the shear reinforcement element.
  • Circular holes 16 are introduced into a sheet-metal strip shear reinforcement element 12 so that the weakening of the shear reinforcement element is very low and the holes should avoid the attachment region of the anchor elements 14. As a result, the concrete composite is increased.
  • FIGS. 5A to 5C shows shear reinforcement elements with end anchoring means. These are executed in the illustrated embodiment as a round rod sections, which, as in FIG. 5A , 12 inserted through the same at different heights of the shear reinforcement element through holes and can be welded or welded butt-welded with this.
  • the support-side round hole in the embodiment according to FIG. 4 which is provided at the correspondingly extended free end of the shear reinforcement element 12, also has the function of a final anchoring means 18.
  • Out Figures 5B and 5C It can be seen that the end anchoring means can project on both sides from the shear reinforcement element 12 ( Fig. 5B ). You can also combine several punching reinforcement elements as a group.
  • FIG. 5C shows in this respect two combined punching reinforcement elements, which are connected by a rod-shaped end anchoring means 18 with each other. This arrangement is particularly easy to handle even when installed in the ceiling reinforcement.

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  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Working Measures On Existing Buildindgs (AREA)

Claims (7)

  1. Armature de poinçonnement d'une structure en béton armé contre le poinçonnement aux alentours de la zone d'appui d'une dalle comprenant une pluralité d'éléments d'ancrage à orienter transversalement et à bétonner dans la dalle à distance latérale entre eux dans une zone de proximité de parties de dalle placées à côté de la zone d'appui, dans lequel plusieurs éléments d'armature de cisaillement (12 ; 12A, 12B) rigides en flexion placés verticalement et disposés parallèlement aux éléments d'ancrage (14) sont alignés, en tant qu'ancrages à tête double et/ou en tant qu'éléments d'ancrage (14) formés en tant qu'éléments en forme d'étrier, dans lequel les éléments d'armature de cisaillement sont composés d'au moins une bande de tôle orientée parallèlement et/ou en diagonale et/ou verticalement aux éléments d'ancrage, caractérisée en ce que les éléments d'armature de cisaillement s'étendent dans une zone médiane entre les extrémités des éléments d'ancrage, dans lequel le tracé de ligne des éléments d'ancrage attribués aux éléments d'armature de cisaillement peut être sélectionné au choix, et que les éléments d'armature de cisaillement (12) sont disposés en étoile par rapport à la zone d'appui (4).
  2. Armature de poinçonnement selon la revendication 1, caractérisée en ce que les éléments d'ancrage (14) et les éléments d'armature de cisaillement (12) tendent des plans qui sont disposés parallèlement entre eux.
  3. Armature de poinçonnement selon la revendication 1 ou 2, caractérisée en ce que l'alignement des éléments d'armature de cisaillement (12) est prévu le long d'un plan étendu linéairement.
  4. Armature de poinçonnement selon l'une des revendications 1 à 3, caractérisée en ce que les éléments d'armature de cisaillement (12) présentent des percées (16) augmentant l'adhérence du béton.
  5. Armature de poinçonnement selon l'une des revendications 1 à 4, caractérisée en ce que les éléments d'armature de cisaillement (12) présentent au moins un moyen (18) pour l'ancrage final.
  6. Armature de poinçonnement selon la revendication 5, caractérisée en ce que les moyens d'ancrage final (18) regroupent plusieurs éléments d'armature de cisaillement (12).
  7. Armature de poinçonnement selon l'une des revendications 1 à 6, caractérisée en ce que les éléments d'ancrage (14) sont reliés aux éléments d'armature de cisaillement.
EP09012089.0A 2008-09-23 2009-09-23 Armature de poinçonnement d'une structure en béton armé contre le poinçonnement aux alentours de la zone d'appui d'une dalle Active EP2166171B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PL09012089T PL2166171T3 (pl) 2008-09-23 2009-09-23 Zbrojenie na przebicie do zbrojenia budowli betonowej zabezpieczającego przed przebiciem w obszarze podparcia elementu stropowego na podporze

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE202008012547U DE202008012547U1 (de) 2008-09-23 2008-09-23 Anordnung zum Bewehren eines Betonbauwerkes gegen Durchstanzen im Bereich der Auflage eines Deckenelementes auf einer Stütze sowie Durchstanzbewehrungselement hierfür

Publications (2)

Publication Number Publication Date
EP2166171A1 EP2166171A1 (fr) 2010-03-24
EP2166171B1 true EP2166171B1 (fr) 2019-05-22

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EP09012089.0A Active EP2166171B1 (fr) 2008-09-23 2009-09-23 Armature de poinçonnement d'une structure en béton armé contre le poinçonnement aux alentours de la zone d'appui d'une dalle
EP09012090.8A Active EP2166172B1 (fr) 2008-09-23 2009-09-23 Dispositif d'armature d'une structure en béton contre le poinçonnement aux alentours de la zone d'appui d'une dalle et élément d'armature de poinçonnement relatif

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EP09012090.8A Active EP2166172B1 (fr) 2008-09-23 2009-09-23 Dispositif d'armature d'une structure en béton contre le poinçonnement aux alentours de la zone d'appui d'une dalle et élément d'armature de poinçonnement relatif

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EP (2) EP2166171B1 (fr)
DE (1) DE202008012547U1 (fr)
PL (1) PL2166171T3 (fr)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100971736B1 (ko) * 2009-04-03 2010-07-21 이재호 상하 각각 이중 앵커리지 기능을 갖는 전단보강재
DE202015008645U1 (de) 2015-12-18 2017-03-21 Ancotech Ag Stahlpilz für einen durchstanzgefährdeten Bereich eines Betonbauteils sowie Verstärkungsanordnung mit einem Stahlpilz
EP3181771A1 (fr) 2015-12-18 2017-06-21 Ancotech Ag Élément en forme de croix pour le renforcement d'une zone à risque de perforation d'un élément en béton, pile en acier et dispositif pour un pile en acier, dispositif de renforcement, kit de montage pour un renfort antiperforation et procédé de montage d'un renfort antiperforation

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE202007018210U1 (de) * 2007-12-28 2008-03-13 Deutsche Kahneisen Gesellschaft Mbh Stahlbetonbauelement mit Queranker
EP2108753A1 (fr) * 2008-03-26 2009-10-14 Gerhard Krummel Dispositif d'armatures pour une liaison entre deux éléments muraux en forme de plaques en béton, en particulier en béton armé

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GB191407210A (en) * 1914-03-21 1914-10-29 Guy Bennett Waite Improvements in Reinforced Concrete Buildings.
DE2058714A1 (de) * 1970-11-28 1972-11-16 Remy Friedr Nfg Betonrippenplatte
DE2727159C3 (de) 1977-06-16 1980-05-08 7000 Stuttgart Schubbewehrung für auf Betonstützen aufgelagerte Flachdecken aus Stahl- oder Spannbeton
DE3411591C1 (de) * 1984-03-29 1985-06-13 Hochtief Ag Vorm. Gebr. Helfmann, 4300 Essen Schubbewehrungselement fuer Stahlbetonkonstruktionen
DE3417330C1 (de) * 1984-05-10 1985-09-19 Andrä, Wolfhart, Dr.-Ing., 7000 Stuttgart Anschluss einer Ortbetonplatte an eine vorgefertigte Stuetze
AT382188B (de) * 1984-07-24 1987-01-26 Avi Alpenlaendische Vered Schubbewehrungssystem fuer flaechentragwerke
DE3520129A1 (de) * 1985-06-05 1986-12-11 Stahlbau Michael Lavis Söhne, 6050 Offenbach Stahlverbunddecke
DE3909849A1 (de) * 1988-06-07 1989-12-14 Andrae Hans Peter Traeger aus stahlbeton mit plattenbalken-querschnitt
GB2235221B (en) * 1989-08-21 1993-08-25 Square Grip Ltd Shearhead reinforcement
CH690920A5 (de) * 1995-12-30 2001-02-28 Ancotech Ag Bewehrung für auf Stützen aufgelagerte Flachdecken, Schubbewehrungselement sowie ein Verfahren zur Herstellung einer Bewehrung.
WO1997036067A1 (fr) * 1996-03-26 1997-10-02 Sicon S.R.O. Joint d'elements de construction en beton
DE19756358A1 (de) * 1997-12-18 1999-07-01 Deha Ankersysteme Schubbewehrung für Flachdecken und Dübelleiste hierfür
EP0928859A1 (fr) * 1998-01-13 1999-07-14 Pecon AG Armature de cisaillement
DE19924418A1 (de) * 1999-05-27 2000-11-30 Schoeck Bauteile Gmbh Bauelement zur Schubbewehrung
EP1202677A1 (fr) 1999-07-19 2002-05-08 Ultradent Products, Inc. Matrices gravees, systemes et procedes correspondants
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ATE409788T1 (de) * 2001-01-12 2008-10-15 Ancotech Ag Bewhrung für auf stützen aufgelagerte flachdecken sowie ein verfahren zur herstellung einer bewehrung
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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE202007018210U1 (de) * 2007-12-28 2008-03-13 Deutsche Kahneisen Gesellschaft Mbh Stahlbetonbauelement mit Queranker
EP2108753A1 (fr) * 2008-03-26 2009-10-14 Gerhard Krummel Dispositif d'armatures pour une liaison entre deux éléments muraux en forme de plaques en béton, en particulier en béton armé

Also Published As

Publication number Publication date
EP2166171A1 (fr) 2010-03-24
EP2166172A1 (fr) 2010-03-24
DE202008012547U1 (de) 2010-02-11
PL2166171T3 (pl) 2019-10-31
EP2166172B1 (fr) 2013-05-22

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