EP1180565A1 - Flexible Anschlussbewehrung für die Bewehrung von Stahlbetonstrukturen - Google Patents

Flexible Anschlussbewehrung für die Bewehrung von Stahlbetonstrukturen Download PDF

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Publication number
EP1180565A1
EP1180565A1 EP01810710A EP01810710A EP1180565A1 EP 1180565 A1 EP1180565 A1 EP 1180565A1 EP 01810710 A EP01810710 A EP 01810710A EP 01810710 A EP01810710 A EP 01810710A EP 1180565 A1 EP1180565 A1 EP 1180565A1
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EP
European Patent Office
Prior art keywords
flexible connection
reinforcement
flexible
elongated element
connection frame
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Withdrawn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
EP01810710A
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English (en)
French (fr)
Inventor
Philippe Menetrey
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Individual
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Individual
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Publication date
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Publication of EP1180565A1 publication Critical patent/EP1180565A1/de
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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
    • E04C5/0636—Three-dimensional reinforcing mats composed of reinforcing elements laying in two or more parallel planes and connected by separate reinforcing parts
    • E04C5/064—Three-dimensional reinforcing mats composed of reinforcing elements laying in two or more parallel planes and connected by separate reinforcing parts the reinforcing elements in each plane being formed by, or forming a, mat of longitunal and transverse bars
    • 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
    • E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
    • E04C5/00—Reinforcing elements, e.g. for concrete; Auxiliary elements therefor
    • E04C5/07—Reinforcing elements of material other than metal, e.g. of glass, of plastics, or not exclusively made of metal
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
    • E04C5/00—Reinforcing elements, e.g. for concrete; Auxiliary elements therefor
    • E04C5/16—Auxiliary parts for reinforcements, e.g. connectors, spacers, stirrups
    • E04C5/162—Connectors or means for connecting parts for reinforcements

Definitions

  • the subject of the present invention is a flexible connection reinforcement for reinforcing structures concrete.
  • Thin concrete structures were developed in the 1950s for the construction of buildings, factories, bridges etc. These structures are highly stressed in shear near the support. The rupture resulting from an excess of the bearing capacity with respect to shear is dangerous because it is of the fragile type, that is to say that it occurs suddenly (without warning sign) and is characterized by a significant reduction in bearing capacity.
  • Shear failure of thin concrete structures is mainly due to the way the armature is arranged either by stacking armature plies.
  • armature plies For a concrete slab for example, four reinforcement plies are generally arranged; two orthogonal layers close to the face lower and two orthogonal layers near the upper face.
  • the tablecloths on the underside are generally not linked to the layers of the upper face although they are distant from each other. It follows that shear forces or inclined pulls (Ph. Menétrey thesis, EPFL, 1994) generated near the supports can only be transmitted between the lower and upper layers by concrete.
  • the failure occurring at the weakest point, concrete is characterized by a fragile behavior.
  • the force inside such a reinforcement can be calculated in the case of slabs using the model developed by Ph. Menétrey (ACI Journal, 1996 and fib Symposium, Moscow, 1999) and it depends on the anchoring at the ends, the modulus of elasticity, the adhesion and the length of the shear reinforcement. But the anchoring of the shear reinforcement is decisive and none of the systems presented above offers a perfectly rigid anchoring.
  • FIG. 1 Two embodiments of the flexible connection frame according to the invention are illustrated in FIG. 1 for a concrete slab (A) stressed by a load (C) and supported on a column (B).
  • the frame (F) is part of the outermost upper reinforcement ply and the reinforcement (G) is part of the outermost reinforcement ply.
  • the flexible connection frame is characterized by an elongated element (H) and by a fixing system (I).
  • the elongated element (H) surrounds the cross section of the reinforcements (F) and (G) and it is fixed end to end by the fixing system (I).
  • the fastening system is designed to allow tension at the ends of the elongated member and tie them end to end. A flattened and closed loop is thus formed around the reinforcements.
  • the flexible connection frame is characterized by an elongated element (H) and by two fixing (I1) and (I2).
  • a first collar (D) surrounds the cross section of the frame (F) and it is closed by the fixing system (I1).
  • a second collar (G) surrounds the cross section of the frame (G) and it is closed by the fixing system (I2).
  • the fastening systems (I1) and (I2) are designed so to allow the tension of the elongated element in order to make it rectilinear and to allow to link it rigidly.
  • FIG. 3 Two examples of application of the flexible connection frame according to the invention are illustrated in FIG. 3 for which the elongated element (H) is a metal cable.
  • the fixing system is a cable clamp (J).
  • the fixing system consists of a tensioner (K) connected to two loops ends (L) and (M) which extend each end of the cable.
  • FIG. 4a represents an armature flexible connection characterized in that one end of the elongated element (H) is terminated by one end loop (L) and the other end has an over-length (M); the fastening system is obtained by introducing the excess length (M) into the end loop (L), by tensioning the two ends of the elongated element (H) then by folding the over-length (M). The folding of the over-length must stress the material in its plastic range so that the deformation is non-reversible. The fastening system is rigid when the folded over-length is locked in its folded position by the hardened concrete.
  • Fig. 4a represents an armature flexible connection characterized in that one end of the elongated element (H) is terminated by one end loop (L) and the other end has an over-length (M); the fastening system is obtained by introducing the excess length (M) into the end loop (L), by tensioning the two ends of the elongated element (H) then by folding the over-length (M). The folding of
  • FIG. 4b represents a flexible connection frame characterized in that a end of the elongated element (H) is terminated by an end loop (L) and on the other end (N) is fixed a patch (O) acting as an anchor.
  • the fixing system is obtained by the introduction of the pellet into the loop then by tensioning the two ends and it is rigid once the pellet is anchored in the hardened concrete.
  • Fig. 4c represents a flexible connection frame characterized in that on each end of the elongated element (H) is fixed a patch (O1) and (O2) serving as an anchor; the fixing system is obtained by twisting each of the ends around each other.
  • the fastening system is rigid once the pads are anchored in hardened concrete.
  • FIG. 5 Two examples of application of the flexible connection frame according to the invention are illustrated in FIG. 5 for which the elongate element (H) consists of a composite material reinforced with fibers.
  • Fig. 5a represents a fixing system by gluing (Q).
  • Fig. 5b represents an elongated element comprising at one end a part (P) having an orifice.
  • the fixing system is obtained by introducing the other end of the elongated element in the orifice.
  • the fixing system is such that after tensioning the ends of the elongated element it is self-locking and this so that the flattened loop thus created does not not grow.
  • This fastening system is comparable to that used by straps or straps.

Landscapes

  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Reinforcement Elements For Buildings (AREA)
  • Joining Of Building Structures In Genera (AREA)
EP01810710A 2000-08-08 2001-07-18 Flexible Anschlussbewehrung für die Bewehrung von Stahlbetonstrukturen Withdrawn EP1180565A1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH15432000A CH694375A5 (fr) 2000-08-08 2000-08-08 Armature flexible de connexion reliant les armatures d'une structure en béton.
CH154300 2000-08-08

Publications (1)

Publication Number Publication Date
EP1180565A1 true EP1180565A1 (de) 2002-02-20

Family

ID=4565545

Family Applications (1)

Application Number Title Priority Date Filing Date
EP01810710A Withdrawn EP1180565A1 (de) 2000-08-08 2001-07-18 Flexible Anschlussbewehrung für die Bewehrung von Stahlbetonstrukturen

Country Status (2)

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EP (1) EP1180565A1 (de)
CH (1) CH694375A5 (de)

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH696204A5 (de) * 2003-02-10 2007-02-15 Ankaba Ag Vorrichtung zur Schubbewehrung.
WO2007028652A1 (de) * 2005-09-10 2007-03-15 Beltec Industrietechnik Gmbh Bewehrungskörper aus faserverstärktem kunststoff
WO2007053038A1 (en) 2005-11-04 2007-05-10 Bba Blackbull As Reinforcement for concrete elements and system and method for producing reinforced concrete elements
WO2011012483A1 (de) * 2009-07-31 2011-02-03 Fachhochschule Gießen-Friedberg Stahlbetonbauteil mit bewehrung aus l-förmigen blechteilen
EP2489808A1 (de) * 2011-02-15 2012-08-22 F.J. Aschwanden AG Bewehrungselement für die Aufnahme von Kräften in Betonelementen, die durch Stützelemente abgestützt sind
US8650828B2 (en) 2009-07-31 2014-02-18 Technische Hochschule Mittelhessen Reinforced concrete component reinforced with Z-shaped sheet metal pieces
CN110565863A (zh) * 2019-09-27 2019-12-13 华东建筑设计研究院有限公司 一种叠合楼板和建筑物以及用于制备叠合楼板的框架
CN114033105A (zh) * 2021-11-09 2022-02-11 中冶建工集团有限公司 用于墙柱、梁板结构的钢筋保护层垫条施工工艺

Citations (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB116702A (en) * 1917-05-29 1918-12-05 Navires En Clement Arme Societ Improvements in Reinforced Concrete.
GB189689A (en) * 1922-01-31 1922-12-07 George William Stokes Improvements in metal re-inforcement for concrete
CH382950A (de) 1964-04-23 1964-10-15 Geilinger & Co Abstützvorrichtung einer Eisenbetondecke
FR1424600A (fr) * 1964-12-16 1966-01-14 élément de liaison pour fers d'armatures et son procédé d'utilisation
FR1601289A (de) * 1968-12-27 1970-08-10
DE1659116A1 (de) * 1967-12-21 1970-12-23 Georg Hubmann Vorgefertigte,mit raeumlichen Gitterwerken bewehrte duennwandige Stahlbetontafelemente
DE2727159B2 (de) 1977-06-16 1979-07-19 7000 Stuttgart Schubbewehrung für auf Betonstatzen aufgelagerte Flachdecken aus Stahl- oder Spannbeton
CA1085642A (en) 1978-02-28 1980-09-16 Amin Ghali Shear reinforcement for concrete flat slabs
GB2123056A (en) * 1982-06-29 1984-01-25 Toei Shoko Reinforced cement products
EP0318712A1 (de) 1987-11-30 1989-06-07 Riss AG Verbindungsvorrichtung zum Anschliessen einer Betondecke an eine Stütze sowie Bauwerk
CH683545A5 (de) 1991-01-18 1994-03-31 Thomas Moesch Schubbewehrung für Flachdecken.
WO1996035029A1 (en) 1995-05-04 1996-11-07 The University Of Sheffield Improvements in or relating to reinforced concrete structural elements
WO2000005461A1 (de) 1998-07-20 2000-02-03 Hans Frisch Stahlbetonplatte und schubbewehrungselement zur schubbewehrung von stahlbetonplatten

Patent Citations (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB116702A (en) * 1917-05-29 1918-12-05 Navires En Clement Arme Societ Improvements in Reinforced Concrete.
GB189689A (en) * 1922-01-31 1922-12-07 George William Stokes Improvements in metal re-inforcement for concrete
CH382950A (de) 1964-04-23 1964-10-15 Geilinger & Co Abstützvorrichtung einer Eisenbetondecke
FR1424600A (fr) * 1964-12-16 1966-01-14 élément de liaison pour fers d'armatures et son procédé d'utilisation
DE1659116A1 (de) * 1967-12-21 1970-12-23 Georg Hubmann Vorgefertigte,mit raeumlichen Gitterwerken bewehrte duennwandige Stahlbetontafelemente
FR1601289A (de) * 1968-12-27 1970-08-10
DE2727159B2 (de) 1977-06-16 1979-07-19 7000 Stuttgart Schubbewehrung für auf Betonstatzen aufgelagerte Flachdecken aus Stahl- oder Spannbeton
CA1085642A (en) 1978-02-28 1980-09-16 Amin Ghali Shear reinforcement for concrete flat slabs
GB2123056A (en) * 1982-06-29 1984-01-25 Toei Shoko Reinforced cement products
EP0318712A1 (de) 1987-11-30 1989-06-07 Riss AG Verbindungsvorrichtung zum Anschliessen einer Betondecke an eine Stütze sowie Bauwerk
CH683545A5 (de) 1991-01-18 1994-03-31 Thomas Moesch Schubbewehrung für Flachdecken.
WO1996035029A1 (en) 1995-05-04 1996-11-07 The University Of Sheffield Improvements in or relating to reinforced concrete structural elements
WO2000005461A1 (de) 1998-07-20 2000-02-03 Hans Frisch Stahlbetonplatte und schubbewehrungselement zur schubbewehrung von stahlbetonplatten

Cited By (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH696204A5 (de) * 2003-02-10 2007-02-15 Ankaba Ag Vorrichtung zur Schubbewehrung.
WO2007028652A1 (de) * 2005-09-10 2007-03-15 Beltec Industrietechnik Gmbh Bewehrungskörper aus faserverstärktem kunststoff
CN101263270B (zh) * 2005-09-10 2010-12-15 Firep玻璃纤维筋技术有限公司 纤维增强塑料制成的增强体
WO2007053038A1 (en) 2005-11-04 2007-05-10 Bba Blackbull As Reinforcement for concrete elements and system and method for producing reinforced concrete elements
EP1945878A1 (de) * 2005-11-04 2008-07-23 BBA Blackbull AS Bewehrung für betonelemente und system und verfahren zur herstellung von stahlbetonelementen
EP1945878A4 (de) * 2005-11-04 2014-09-10 Reforcetech As Bewehrung für betonelemente und system und verfahren zur herstellung von stahlbetonelementen
US8815366B2 (en) 2009-07-31 2014-08-26 Technische Hochschule Mittelhessen Reinforced concrete component reinforced with L-shaped sheet metal pieces
US8650828B2 (en) 2009-07-31 2014-02-18 Technische Hochschule Mittelhessen Reinforced concrete component reinforced with Z-shaped sheet metal pieces
WO2011012483A1 (de) * 2009-07-31 2011-02-03 Fachhochschule Gießen-Friedberg Stahlbetonbauteil mit bewehrung aus l-förmigen blechteilen
US8516757B2 (en) 2011-02-15 2013-08-27 F.J. Aschwanden Ag Reinforcement element for absorbing forces in concrete elements which are supported by support elements
EP2489808A1 (de) * 2011-02-15 2012-08-22 F.J. Aschwanden AG Bewehrungselement für die Aufnahme von Kräften in Betonelementen, die durch Stützelemente abgestützt sind
CN110565863A (zh) * 2019-09-27 2019-12-13 华东建筑设计研究院有限公司 一种叠合楼板和建筑物以及用于制备叠合楼板的框架
CN114033105A (zh) * 2021-11-09 2022-02-11 中冶建工集团有限公司 用于墙柱、梁板结构的钢筋保护层垫条施工工艺
CN114033105B (zh) * 2021-11-09 2022-11-04 中冶建工集团有限公司 用于墙柱、梁板结构的钢筋保护层垫条施工工艺

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Publication number Publication date
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