EP0928859A1 - Armature de cisaillement - Google Patents

Armature de cisaillement Download PDF

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Publication number
EP0928859A1
EP0928859A1 EP99810016A EP99810016A EP0928859A1 EP 0928859 A1 EP0928859 A1 EP 0928859A1 EP 99810016 A EP99810016 A EP 99810016A EP 99810016 A EP99810016 A EP 99810016A EP 0928859 A1 EP0928859 A1 EP 0928859A1
Authority
EP
European Patent Office
Prior art keywords
reinforcement
spacer
spiral
support
elements
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Withdrawn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
EP99810016A
Other languages
German (de)
English (en)
Inventor
Erich Müller
Stéphane Nancoz
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.)
Pecon AG
Original Assignee
Pecon 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 Pecon AG filed Critical Pecon AG
Publication of EP0928859A1 publication Critical patent/EP0928859A1/fr
Withdrawn legal-status Critical Current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 extent, e.g. lattice girders
    • E04C5/0645—Shear reinforcements, e.g. shearheads for floor slabs

Definitions

  • the present invention relates to a spacer reinforcement for the reinforcement of point-supported concrete slabs, the support being substantially in the longitudinal direction of the support reinforcing bars and the supported slabs each lower and upper parallel to the plane of the board arranged reinforcement network.
  • the company F.J. Aschwanden AG under the registered Trademark DURA reinforcement reinforcement offered consists of a right-angled grid with all parallel Longitudinal bars welded U-shaped brackets, the parallel legs each on the same side by 180 ° are turned. Through the open loops formed in this way then rods of the upper network are introduced from below and each rod connected to all the loops. This results in a extremely complex spacer reinforcement network in processing, which is basically the strength through reached an excessive steel volume. The reinforcement is everywhere the same and does not consider the different course of forces depending on the Distance of the column.
  • This reinforcement essentially also applies to one from the company Riss AG brought to market solution.
  • This reinforcement consists of a single element in the form of a bar on the vertical pencil with a plate-shaped head are welded on. Then on the construction site are radial Pillar aligned a variety of these individual elements the formwork, with the interposition of plastic spacers, nailed on. After that, a lower net of the plate laid over it and finally attached the upper net. A connection of the networks with the spacer reinforcement does not happen.
  • This task is achieved by reinforcing the spacing at the beginning mentioned type with the characteristics of the characteristic part of claim 1.
  • spiral reinforcing bars running between the lower and upper reinforcement network of the point-supported concrete slabs run, and arranged radially away from the center of the support a high concentration of Connections in the area close to the column, whereby one because of the very inexpensive manufacturing the spiral Reinforcing bars can be of practically any length can be configured so that the Support the reinforcement produces its effect.
  • the spiral reinforcing bars are optional stretch so that more or fewer turns per linear meter are achievable. These changes can be made across the board Length can be even or different. It can the change in thread pitch changed in sections be or continuously. You can also have several spiral reinforcing bars with different Diameters in relation to the cylindrical spirals use. Of course, you can also use the strength Reinforcing bars vary according to the cross sections.
  • spiral with its general meaning, that is, as being around an axis winding spatial curve, is needed.
  • the spatial curve can be a spiral, that is, a spiral, the one Lateral surface defined with a circular cross-section, be formed, or a variety of other shapes exhibit.
  • Such embodiments of the spiral are Known expert and the shape is only by the manufacturing limits in the bending process limited.
  • the Spacer reinforcement 1 consists of several spacer reinforcement elements 10,11, with all spacer reinforcement elements are spiral and their centric Longitudinal axes 9, the support 2 on which the plate 3 is supported, to cut. Of course, these longitudinal axes 9 run parallel to the level of the support plate 3. While the axes 9 always cut the support 2, they do so the concrete spacer reinforcement elements themselves are not necessarily.
  • the spacer reinforcement elements 10 begin in Area near the support 2 and run radially from this outward away.
  • the spacer reinforcement elements 10 are only about half as long as the one passing through the support 2 Spacer reinforcement elements 11. Which of these two Variants are preferred for the respective application, should depend primarily on the spatial conditions be.
  • the spacer reinforcement elements 10, 11 according to the invention are in the simplest case made of reinforcing steel spiral coiled rods, the spiral thus formed completely is evenly designed. In this case, the spiral around a cylindrical spiral with constant Slope so that the distance between two neighboring ones Threads g is the same everywhere.
  • the spacer reinforcement element 10 which from the support 2 vertically upwards in the Drawing is shown with two Provide sections 12, 13 in which the thread pitch is different for each section.
  • the Course section 12 has a small thread pitch
  • both variants can also be used combine.
  • the spiral the reinforcement elements 10, 11, that is the spatial Curve into which the reinforcement element is bent can define a wide variety of lateral surfaces. These can elliptical, triangular, quadrangular and polygonal Have cross sections, as shown in Figures 12a and 12b and Figures 12c to 12e and 13 is shown. Will be at Bending the reinforcement elements changed the bending direction, so can, for example, that in Figures 12 f and 12g shown T- and double-T-shaped cross sections or a A figure eight lying in the figure 12h corresponding cross-section are formed. As before a variety of other embodiments have been mentioned the spiral is known and the shape is only through Manufacturing limits in the bending process limited.
  • the straight sections of the in Figures 12b to 12h and 13th Reinforcement elements 10, 11 shown can for example the attachment of the reinforcement elements 10, 11 to others Reinforcing elements or special fastening elements facilitate.
  • 1 is a Spacer reinforcement element 11, which supports 2 interspersed, shown diagonally, whereby here the Spacer reinforcement element 11 on both sides of the support 2 Has course sections 14, 15, each course section is cylindrical, but these sections have different spiral diameters.
  • a has a smaller diameter, the outer end areas, the course sections 15, with an enlarged Diameter.
  • the diameter d of the spiral could be different also change continuously.
  • To make such a spiral is much more complex and only makes sense if this is necessary for geometric reasons or so that certain static advantages can be achieved.
  • the diameter of the spiral spacer reinforcement elements 10.11 is usefully designed so that it is smaller than the distance a between the upper one Reinforcement network 4 and the lower reinforcement network 5. This facilitates assembly on the one hand and also corresponds to theoretical knowledge, as described in the introduction mentioned thesis by A. Muttoni are disclosed.
  • a fastening rod 7 to be provided.
  • This fastening rod 7 extends approximately a generator of the fictitious cylinder surface of the spiral spacer reinforcement elements.
  • the fastening rod 7 can be different with the spiral rod 100 of the spacer reinforcement element 10 or 11 be connected.
  • the simplest variants are that the connection by welding or by means of tie wires is made.
  • fastening rod 7 with the spiral rod 100 welded, it makes sense to use the fastening rod as simple reinforcement bar 17 to design, as the figure 4.
  • the fastening rod 7 By fixing the spiral curved Rod 100 on the fastening rod 7.17 can also be different Course sections 12,13 are formed.
  • the fastening rod 7 also results in an increased flexural strength of the entire spacer reinforcement element 10.11. Corresponding it is also quite possible to do more than just a fastening rod 7 to be provided.
  • the fastening rod can also be designed as a profile rail 27 be.
  • a profile rod 27 preferably by outside on the cylindrical spiral Spacer reinforcement element 10, 11 is placed, allowed removable and lockable fastening elements which can be detached therein 8, for example as wire loops.
  • fasteners 8 allow connection to the upper or lower reinforcement net 4, 5 or with the Reinforcing bars 6 in the column 2.
  • the inventive Spacer reinforcement in every arrangement of the support 2 in Realize relation to the concrete slab 3.
  • they are Support 2 not only in the central area of the concrete slab 3 arranged, but of course also come on the edge as well as in the corner areas of the concrete slab 3.
  • the Laying arrangement can be with all these variants of the Adjust statics accordingly.
  • the footplate 30 over the lower one Reinforcing net 4 is preferably provided on the base plate 30 with support feet 31 made of plastic, which are characterized by the Reinforcing the slab through onto the slab formwork can support.
  • the footplate functionally replaces that Fastening rod 7, 17, 27, but also has one static function.
  • the foot plate 30 is longer than that spacer reinforcement element 10 fastened thereon. Also here can the individual turns of the spiral Spacer reinforcement element 10 on the base plate 30 be attached.
  • On the via the spacer reinforcement element 10 projecting end 32 of the foot plate 30 is a shear force absorbing element 40 arranged.

Landscapes

  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Reinforcement Elements For Buildings (AREA)
EP99810016A 1998-01-13 1999-01-13 Armature de cisaillement Withdrawn EP0928859A1 (fr)

Applications Claiming Priority (6)

Application Number Priority Date Filing Date Title
CH4898 1998-01-13
CH4898 1998-01-13
CH15998 1998-01-23
CH15998 1998-01-23
CH47598 1998-02-27
CH47598 1998-02-27

Publications (1)

Publication Number Publication Date
EP0928859A1 true EP0928859A1 (fr) 1999-07-14

Family

ID=27171734

Family Applications (1)

Application Number Title Priority Date Filing Date
EP99810016A Withdrawn EP0928859A1 (fr) 1998-01-13 1999-01-13 Armature de cisaillement

Country Status (1)

Country Link
EP (1) EP0928859A1 (fr)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102005030409A1 (de) * 2005-06-30 2007-01-04 Technische Universität München Wendelförmiges Bewährungselement
DE202005019077U1 (de) * 2005-12-06 2007-04-19 nolasoft Ingenieurgemeinschaft Ozbolt Mayer GbR (vertretungsberechtigter Gesellschafter: Dr.-Ing. Utz Mayer, 70178 Stuttgart) Bewehrungselement für Tragwerke aus Stahlbeton, Spannbeton od.dgl.
EP2166172A1 (fr) * 2008-09-23 2010-03-24 Ancotech Ag 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
WO2011012483A1 (fr) * 2009-07-31 2011-02-03 Fachhochschule Gießen-Friedberg Élément de béton armé à armature formée d'éléments de tôle en l
WO2011067027A1 (fr) * 2009-12-03 2011-06-09 Fischer Rista Ag Dispositif d'armature
US8650828B2 (en) 2009-07-31 2014-02-18 Technische Hochschule Mittelhessen Reinforced concrete component reinforced with Z-shaped sheet metal pieces

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR332797A (fr) * 1902-06-13 1903-11-06 Fritz Pohlmann Système de poutre en ciment armé
US1969774A (en) * 1930-04-04 1934-08-14 Bauer Bruno Concrete column reenforce joint
AT331469B (de) * 1974-06-26 1976-08-25 Hofstadter Dipl Ing Erich Bewehrung
DE3523656A1 (de) * 1984-07-24 1986-02-06 AVI Alpenländische Veredelungs-Industrie Gesellschaft mbH, Graz, Steiermark Schubbewehrungssystem fuer flaechentragwerke
DE8706337U1 (de) * 1987-05-02 1987-07-02 Bilfinger + Berger Bauaktiengesellschaft, 6800 Mannheim Stahlbetonplatte mit Schubbewehrung
EP0781891A1 (fr) * 1995-12-30 1997-07-02 Ancotech Ag Armature pour planchers à dalles supportés par des colonnes, élément d'armature de cisaillement ainse qu'un procédé pour la fabrication d'une armature

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR332797A (fr) * 1902-06-13 1903-11-06 Fritz Pohlmann Système de poutre en ciment armé
US1969774A (en) * 1930-04-04 1934-08-14 Bauer Bruno Concrete column reenforce joint
AT331469B (de) * 1974-06-26 1976-08-25 Hofstadter Dipl Ing Erich Bewehrung
DE3523656A1 (de) * 1984-07-24 1986-02-06 AVI Alpenländische Veredelungs-Industrie Gesellschaft mbH, Graz, Steiermark Schubbewehrungssystem fuer flaechentragwerke
DE8706337U1 (de) * 1987-05-02 1987-07-02 Bilfinger + Berger Bauaktiengesellschaft, 6800 Mannheim Stahlbetonplatte mit Schubbewehrung
EP0781891A1 (fr) * 1995-12-30 1997-07-02 Ancotech Ag Armature pour planchers à dalles supportés par des colonnes, élément d'armature de cisaillement ainse qu'un procédé pour la fabrication d'une armature

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102005030409A1 (de) * 2005-06-30 2007-01-04 Technische Universität München Wendelförmiges Bewährungselement
DE102005030409B4 (de) * 2005-06-30 2009-12-31 Technische Universität München Wendelförmiges Bewehrungselement
DE202005019077U1 (de) * 2005-12-06 2007-04-19 nolasoft Ingenieurgemeinschaft Ozbolt Mayer GbR (vertretungsberechtigter Gesellschafter: Dr.-Ing. Utz Mayer, 70178 Stuttgart) Bewehrungselement für Tragwerke aus Stahlbeton, Spannbeton od.dgl.
EP1795667A2 (fr) * 2005-12-06 2007-06-13 nolasoft Ingenieurgemeinschaft Ozbolt Elément d'armature pour structures en béton armé, béton précontraint ou similaires
EP1795667A3 (fr) * 2005-12-06 2013-06-12 nolasoft Ingenieurgemeinschaft Ozbolt Elément d'armature pour structures en béton armé, béton précontraint ou similaires
EP2166172A1 (fr) * 2008-09-23 2010-03-24 Ancotech Ag 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
WO2011012483A1 (fr) * 2009-07-31 2011-02-03 Fachhochschule Gießen-Friedberg Élément de béton armé à armature formée d'éléments de tôle en l
US8650828B2 (en) 2009-07-31 2014-02-18 Technische Hochschule Mittelhessen Reinforced concrete component reinforced with Z-shaped sheet metal pieces
US8815366B2 (en) 2009-07-31 2014-08-26 Technische Hochschule Mittelhessen Reinforced concrete component reinforced with L-shaped sheet metal pieces
WO2011067027A1 (fr) * 2009-12-03 2011-06-09 Fischer Rista Ag Dispositif d'armature

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