EP1040238B1 - Armature de cisaillement pour plafonds plats et profile a goujons correspondant - Google Patents

Armature de cisaillement pour plafonds plats et profile a goujons correspondant Download PDF

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Publication number
EP1040238B1
EP1040238B1 EP98966280A EP98966280A EP1040238B1 EP 1040238 B1 EP1040238 B1 EP 1040238B1 EP 98966280 A EP98966280 A EP 98966280A EP 98966280 A EP98966280 A EP 98966280A EP 1040238 B1 EP1040238 B1 EP 1040238B1
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EP
European Patent Office
Prior art keywords
dowel
support
dowels
zone
diameter
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.)
Expired - Lifetime
Application number
EP98966280A
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German (de)
English (en)
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EP1040238A1 (fr
Inventor
Peter Ernst
Gerhard Schrader
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.)
Leviat GmbH
Original Assignee
Halfen GmbH and Co KG
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Publication date
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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
    • E04C5/01—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
    • 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

Definitions

  • the invention relates to shear reinforcement for flat slabs in Column area with several, essentially radial to one Support arranged dowel strips, each consisting of one Dowel rail and several vertical, parallel and in Distance to each other attached dowels, each an elongated dowel shaft and at least on that of the End of the dowel rail has a widened dowel head exhibit.
  • the invention also relates to a Dowel bar for such shear reinforcement.
  • Such shear reinforcements serve to initiate the Vertical forces occurring in flat ceilings Reinforced concrete and similarly stressed concrete slabs (DE-A-27 27 159).
  • the dowels arranged perpendicular to the board level absorb the shear forces occurring in the column area. As a result, the dowel shafts are essentially also in tension claimed.
  • the dowel at regular intervals along the dowel bar it is also known to use the dowels in different arrange mutual distances on the dowel bar.
  • a closer dowel distance can be used in higher loads Area in the immediate vicinity of the column.
  • Anchor distances are chosen larger; however here is not exceeding a specified dowel distance permissible, otherwise it would be too uneven Shear force distribution would result.
  • the object of the invention is therefore a shear reinforcement initially mentioned genus so that a improved adaptation to the stresses that occur is achieved.
  • This object is achieved in that the Diameter of the dowel shafts of those adjacent to the column The dowel is larger than the diameter of the dowel shafts dowels removed from the support.
  • This shear reinforcement fulfills this for structural reasons existing requirement, in a neighboring column Intercept the same vertical load as in an area outer, significantly larger area without this outer area an oversizing of the shear reinforcement is present and especially not from static The specified maximum distance between the dowels is exceeded becomes.
  • the dowels on at least one end, but preferably on a warm dipped head on both ends have, whose head diameter about 3 times the Is the diameter for the manufacture required energy expenditure when compressing the dowel heads smaller shaft diameter significantly smaller. The This makes production faster and more environmentally friendly.
  • dowels with a Dowel diameters are arranged that are larger than that Anchor diameter of the rest, in a zone away from the column arranged dowels.
  • the column reinforcement is here adapted the statically predetermined load conditions, after those in a zone near the column, for example Intercepting the same load as in a larger one far from the support Zone.
  • the zone near the column and the zone away from the column are preferably contiguous, essentially each circularly arranged concentrically around the support Zones, the diameter of the zone away from the column is preferably at least twice as large as that Diameter of the zone near the column.
  • each is preferably one inner dowel bar in the zone near the column aligned outer dowel bar in the zone away from the column assigned.
  • the division into an inner and one outer dowel bar allows these two types of Manufacture dowel strips separately, especially from longer, equipped with evenly designed dowels To separate dowel strips.
  • different Embodiments are chosen that are not only in terms of shaft diameter, but also in terms of differentiate the function of the dowel rail carrying the dowels.
  • the dowels of the inner Dowel bar with one end of their dowel shafts with one inner dowel rail are welded and to their other End have a dowel head and that the dowels of the outer Anchor strip designed as a double-headed anchor and on one outer dowel rail are attached.
  • dowel rails are used that only serve to secure the position of the dowels, so that here is a simpler type of connection technically can be chosen. Elaborate and polluting the environment Welding work is avoided here; these outer Dowel strips can be made with less weight be, which gives production and assembly advantages result.
  • a one-piece dowel bar for such shear reinforcement characterized in that at least two on a dowel rail Groups of vertical dowels parallel and at a distance are attached to each other, each an elongated Dowel shaft and at least on that of the dowel rail end facing a widened dowel head, and that the diameter of the dowel shafts of a first group of Dowels are larger than the diameter of the dowel shafts at least a second group of dowels.
  • Fig. 1 is a detail of a flat ceiling 1 in plan shown in reinforced concrete in the area of a column 2.
  • a Shear reinforcement 3 is used to initiate the column forces in the flat ceiling 1 and thus forms a punching shear reinforcement the flat ceiling 1.
  • the flat ceiling 1 in conventional Have a ceiling reinforcement made from an upper one Reinforcement layer 4 and a lower reinforcement layer 5 exists.
  • the shear reinforcement 3 is supported by several dowel bars 6 formed, which is substantially radial to the axis of the support 2nd are arranged.
  • Each dowel bar 6 consists of one Dowel rail 7, on which several vertical dowels 8 and 8 ' are mounted parallel and at a distance from each other.
  • Each dowel 8, 8 ' has an elongated, preferably cylindrical dowel shaft 9 and 9 'and one at both ends compressed, widened dowel head 10 or 10 '. How shown in Fig. 2, the dowel strips 6 are in the Ceiling reinforcement 4, 5 inserted that the dowel rails 7 over the upper reinforcement layer 4 and the dowels 8, 8 'after reach down to the lower reinforcement layer 5.
  • the Dowel shafts 9 have a larger diameter than that Dowel shafts 9 'of dowels 8'.
  • the dowel strips 6 are like this arranged that those belonging to the first group 11 Dowels 8 with dowel shafts 9 of larger diameter in one Zone 13 near the column, while those to the second Group 12 belonging dowels 8 'with dowel shafts 9' smaller Diameter are located in a zone 14 remote from the support.
  • the Zone 13 near the support and Zone 14 away from the support are in essential circular zones that are contiguous are arranged concentrically around the support 2.
  • the diameter the zone 14 remote from the support is in the illustrated embodiment more than twice the diameter of the Zone 13 near the support.
  • FIGS. 4 and 5 differs from the previously described embodiment essentially in that in the zone near the column 13 and in the distant zone 14 separate inner Dowel strips 6 "or outer dowel strips 6 'are arranged, who are always in alignment. While the outside Dowel strips 6 'in the manner already described are executed, whereby those designed as double-headed dowels Dowel 8 'with the above dowel rail 7' for example are connected by riveting or screwing only serves to secure the position, the dowels are 8 "of the inner one Dowel bar 6 "each with one end of their dowel shafts 9 "with an inner, below dowel rail 7" welded. The end of the inner dowel rail on the support side 7 "protrudes into the support 2. The inner dowel rail 7" is used not only to secure the position of the dowels 8 ", but in also essential for the application of force from the surrounding area Concrete in the 8 "dowels.

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  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Joining Of Building Structures In Genera (AREA)
  • Reinforcement Elements For Buildings (AREA)
  • Building Environments (AREA)
  • Manufacturing Of Tubular Articles Or Embedded Moulded Articles (AREA)
  • Vehicle Interior And Exterior Ornaments, Soundproofing, And Insulation (AREA)
  • Working Measures On Existing Buildindgs (AREA)
  • Rod-Shaped Construction Members (AREA)
  • Body Structure For Vehicles (AREA)
  • Moulding By Coating Moulds (AREA)

Claims (9)

  1. Armature de cisaillement pour plafonds plats (1) dans la zone de soutènement, comprenant plusieurs barres à goujons (6), qui sont agencées sensiblement dans le sens radial par rapport à un support (2) et sont formées chacune par un profilé à goujons (7) et plusieurs goujons (8, 8') verticaux, qui sont fixés contre celui-ci parallèlement et à distance les uns des autres et comportent chacun une tige (9, 9') longitudinale et au moins une tête (10, 10') élargie au niveau de l'extrémité opposée au profilé à goujons (7), caractérisée en ce que le diamètre des tiges (9) des goujons (8) à proximité du support (2) est supérieur au diamètre des tiges (9') des goujons (8') plus éloignés du support (2).
  2. Armature de cisaillement selon la revendication 1, caractérisée en ce que dans une zone (13) proche du support sont disposés des goujons (8, 8") avec un diamètre supérieur au diamètre des autres goujons (8') disposés dans une zone (14) éloignée du support.
  3. Armature de cisaillement selon la revendication 2, caractérisée en ce que la zone (13) proche du support et la zone (14) éloignée du support sont des zones contiguës, disposées chacune en cercle, concentriquement autour du support (2).
  4. Armature de cisaillement selon la revendication 3, caractérisée en ce que le diamètre de la zone (14) éloignée du support est au moins égal au double du diamètre de la zone (13) proche du support.
  5. Armature de cisaillement selon la revendication 2, caractérisée en ce que dans la zone (13) proche du support et dans la zone (14) éloignée du support sont disposés respectivement des barres à goujons intérieures et extérieures (6' et 6") séparées.
  6. Armature de cisaillement selon la revendication 5, caractérisée en ce qu'une barre à goujons intérieure (6") dans la zone (13) proche du support est associée à une barre à goujons extérieure (6') alignée avec la barre à goujons intérieure (6") précitée dans la zone (14) éloignée du support.
  7. Armature de cisaillement selon la revendication 5 ou 6, caractérisée en ce que les goujons (8") de la barre à goujons intérieure (6") sont soudés par une extrémité de leurs tiges (9") avec un profilé à goujons intérieur (7") et sont munis d'une tête (10) sur leur autre extrémité, et en ce que les goujons (8') de la barre à goujons extérieure (6') sont réalisés sous forme de goujons à double tête et sont disposés sur un profilé à goujons extérieur (7').
  8. Armature de cisaillement selon la revendication 7, caractérisée en ce que les barres à goujons intérieures (6") sont agencées avec des profilés à goujons (7") inférieurs et les barres à goujons extérieures (6') sont agencées avec des profilés à goujons (7') supérieurs.
  9. Barre à goujons pour une armature de cisaillement selon la revendication 1, caractérisée en ce qu'au niveau d'un profilé à goujons (7) sont agencés au moins deux groupes (11, 12) de goujons (8 et 8') verticaux, disposés parallèlement et à distance les uns des autres, qui sont munis chacun d'une tige (9 et 9') longitudinale et d'au moins une tête (10) élargie au niveau de l'extrémité opposée au profilé à goujons, et en ce que le diamètre des tiges (9) des goujons (8) d'un premier groupe (11), qui est agencé au niveau du bord de la barre à goujons, est supérieur au diamètre des tiges (9') des goujons (8') d'au moins un deuxième groupe (12).
EP98966280A 1997-12-18 1998-12-10 Armature de cisaillement pour plafonds plats et profile a goujons correspondant Expired - Lifetime EP1040238B1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE19756358 1997-12-18
DE19756358A DE19756358A1 (de) 1997-12-18 1997-12-18 Schubbewehrung für Flachdecken und Dübelleiste hierfür
PCT/EP1998/008031 WO1999032737A1 (fr) 1997-12-18 1998-12-10 Armature de cisaillement pour plafonds plats et profile a goujons correspondant

Publications (2)

Publication Number Publication Date
EP1040238A1 EP1040238A1 (fr) 2000-10-04
EP1040238B1 true EP1040238B1 (fr) 2003-03-26

Family

ID=7852410

Family Applications (1)

Application Number Title Priority Date Filing Date
EP98966280A Expired - Lifetime EP1040238B1 (fr) 1997-12-18 1998-12-10 Armature de cisaillement pour plafonds plats et profile a goujons correspondant

Country Status (13)

Country Link
US (1) US6327832B1 (fr)
EP (1) EP1040238B1 (fr)
JP (1) JP4101461B2 (fr)
AT (1) ATE235620T1 (fr)
CA (1) CA2313518C (fr)
CZ (1) CZ297223B6 (fr)
DE (2) DE19756358A1 (fr)
DK (1) DK1040238T3 (fr)
ES (1) ES2191370T3 (fr)
HK (1) HK1031752A1 (fr)
NO (1) NO20003153L (fr)
PL (1) PL196257B1 (fr)
WO (1) WO1999032737A1 (fr)

Families Citing this family (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1223259B1 (fr) * 2001-01-12 2008-10-01 Ancotech Ag Armature pour planchers à dalles supportés par des colonnes ainsi que procédé pour la fabrication d'une armature
DE102004040584A1 (de) * 2004-08-21 2006-02-23 Schöck Bauteile GmbH Bauelement zur Schubbewehrung
DE202007011508U1 (de) * 2007-08-16 2008-12-24 Ancotech Ag Anordnung zum Sanieren von durchstanzgefährdeten Zonen von Betonbauwerken sowie Zugankerelement hierfür
KR100947339B1 (ko) * 2008-01-04 2010-03-15 주식회사 힐 엔지니어링 기둥-슬래브 접합부의 수직걸림형 전단보강체
DE202008012547U1 (de) * 2008-09-23 2010-02-11 Ancotech Ag Anordnung zum Bewehren eines Betonbauwerkes gegen Durchstanzen im Bereich der Auflage eines Deckenelementes auf einer Stütze sowie Durchstanzbewehrungselement hierfür
DE102009056826A1 (de) * 2009-07-31 2011-02-03 Fachhochschule Gießen-Friedberg Stahlbetonbauteil mit Bewehrung aus L-förmigen Blechteilen
CH701682A1 (de) 2009-08-21 2011-02-28 Sybaco Ag Durchstanzbewehrung.
US8549813B2 (en) 2010-12-03 2013-10-08 Richard P. Martter Reinforcing assembly and reinforced structure using a reinforcing assembly
US8220219B2 (en) 2010-12-03 2012-07-17 Martter Richard P Reinforcing assembly, and reinforced concrete structures using such assembly
KR101596259B1 (ko) * 2014-10-30 2016-03-07 경희대학교 산학협력단 철근콘크리트 슬래브의 보강 시스템과 이를 갖는 철근콘크리트 슬래브와 철근콘크리트 슬래브의 전단보강 유닛 및 플랫 플레이트 시공방법
DE102016106525A1 (de) * 2016-04-08 2017-10-12 Wobben Properties Gmbh Verbindungskörper, Windenergieanlagen-Turmringsegment und Verfahren zum Verbinden von zwei Windenergieanlagen-Turmringsegmenten
US11220822B2 (en) 2016-07-15 2022-01-11 Conbar Systems Llc Reinforcing assemblies having downwardly-extending working members on structurally reinforcing bars for concrete slabs or other structures
US10119276B2 (en) 2016-07-15 2018-11-06 Richard P. Martter Reinforcing assemblies having downwardly-extending working members on structurally reinforcing bars for concrete slabs or other structures
US11959270B1 (en) * 2021-04-16 2024-04-16 Morse Distribution, Inc. Stud rail systems and methods for use in reinforced concrete structures
EP4112833A1 (fr) * 2021-06-28 2023-01-04 AVI Alpenländische Veredelungs-Industrie Gesellschaft m.b.H. Agencement de renfort permettant d'augmenter la résistance au poinçonnage, ainsi que procédé associé
DE202023101939U1 (de) 2023-04-17 2023-06-30 Reinhold Elsässer Vorrichtung zum Einsetzen in plattenförmige Elemente

Family Cites Families (10)

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Publication number Priority date Publication date Assignee Title
AT331469B (de) * 1974-06-26 1976-08-25 Hofstadter Dipl Ing Erich Bewehrung
DE2727159C3 (de) 1977-06-16 1980-05-08 7000 Stuttgart Schubbewehrung für auf Betonstützen aufgelagerte Flachdecken aus Stahl- oder Spannbeton
CA1085642A (fr) * 1978-02-28 1980-09-16 Amin Ghali Armatures pour ameliorer la resistance au cisaillement de dalles de beton
DE3417330C1 (de) * 1984-05-10 1985-09-19 Andrä, Wolfhart, Dr.-Ing., 7000 Stuttgart Anschluss einer Ortbetonplatte an eine vorgefertigte Stuetze
DE4129903A1 (de) * 1991-09-09 1993-03-11 Deha Ankersysteme Duebelleiste
CA2165848C (fr) * 1995-12-21 1999-03-30 Amin Ghali Systeme d'armature a goujon pour beton de construction
AU1374897A (en) * 1995-12-21 1997-07-17 Deha Ankersysteme Gmbh & Co Kg Dowel support for bent-up reinforcement bars and process for the production thereof
DE29612053U1 (de) * 1996-07-11 1996-10-31 Rojek Richard Prof Dr Ing Bewehrungsvorrichtung
US5992123A (en) * 1996-07-19 1999-11-30 Erico International Corporation Shear stud assembly and method for reinforcement of column or beam connections
DE29614209U1 (de) * 1996-08-16 1997-12-11 Dausend Hans Werner Dübelleiste

Also Published As

Publication number Publication date
CA2313518A1 (fr) 1999-07-01
ES2191370T3 (es) 2003-09-01
NO20003153D0 (no) 2000-06-16
JP4101461B2 (ja) 2008-06-18
DE59807680D1 (de) 2003-04-30
PL196257B1 (pl) 2007-12-31
WO1999032737A1 (fr) 1999-07-01
PL341207A1 (en) 2001-03-26
CZ297223B6 (cs) 2006-10-11
DE19756358A1 (de) 1999-07-01
CZ20002216A3 (cs) 2001-01-17
JP2001527177A (ja) 2001-12-25
NO20003153L (no) 2000-06-16
ATE235620T1 (de) 2003-04-15
HK1031752A1 (en) 2001-06-22
DK1040238T3 (da) 2003-06-10
EP1040238A1 (fr) 2000-10-04
CA2313518C (fr) 2006-02-07
US6327832B1 (en) 2001-12-11

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