WO2004016874A1 - Dalle en beton composite et ancre de maintien servant a assembler deux dalles en beton - Google Patents

Dalle en beton composite et ancre de maintien servant a assembler deux dalles en beton Download PDF

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Publication number
WO2004016874A1
WO2004016874A1 PCT/DE2003/002472 DE0302472W WO2004016874A1 WO 2004016874 A1 WO2004016874 A1 WO 2004016874A1 DE 0302472 W DE0302472 W DE 0302472W WO 2004016874 A1 WO2004016874 A1 WO 2004016874A1
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WO
WIPO (PCT)
Prior art keywords
anchor according
retaining
reinforcement
retaining anchor
concrete slab
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.)
Ceased
Application number
PCT/DE2003/002472
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German (de)
English (en)
Inventor
Hans Frisch
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Individual
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Individual
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Filing date
Publication date
Application filed by Individual filed Critical Individual
Publication of WO2004016874A1 publication Critical patent/WO2004016874A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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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
    • E04C5/16—Auxiliary parts for reinforcements, e.g. connectors, spacers, stirrups
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
    • E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
    • E04B1/38—Connections for building structures in general
    • E04B1/41—Connecting devices specially adapted for embedding in concrete or masonry
    • E04B1/4178—Masonry wall ties
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
    • E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
    • E04B1/38—Connections for building structures in general
    • E04B1/41—Connecting devices specially adapted for embedding in concrete or masonry
    • E04B2001/4192—Connecting devices specially adapted for embedding in concrete or masonry attached to concrete reinforcing elements, e.g. rods or wires

Definitions

  • the invention relates to a retaining anchor for connecting a first reinforced concrete slab and a second reinforced concrete slab, wherein an insulating layer is arranged between the concrete slabs and a composite concrete slab consisting of at least a first reinforced concrete slab, a second reinforced concrete slab and an insulating layer, at least one holding anchor for Connecting the concrete slabs between the first and second reinforcement is attached.
  • Similar retaining anchors and composite concrete slabs are generally known.
  • Composite concrete slabs with internal insulation layers are being used more and more frequently in construction to improve thermal insulation, whereby components are sometimes also prefabricated in factories and the complete composite slab is transported to the construction site.
  • So-called retaining anchors are necessary for the connection between the concrete slabs, both for the prefabricated elements and for the composite concrete slabs produced on the construction site, since the insulation material lying between the concrete slabs is not able to absorb the tension that may occur during manufacture, transport and construction - and absorb shear forces.
  • the known retaining anchors are mostly made of bent wires. In the manufacturing process of the composite concrete slab, these are hooked into the reinforcement of the first cast concrete slab, then the insulation layer is applied, at least part of the reinforcement of the overlying concrete layer is hooked into the upright anchor and the next concrete layer is poured.
  • a problem with the known retaining anchors is that they do not have sufficient strength in load tests and only tolerate relative movements of the concrete layers of the composite panel to a small extent.
  • the experiment was large
  • the inventor has recognized that it is cheaper to use relatively easily bendable flat steels for the retaining anchors than the currently used round steels, since these have proven to be significantly less sensitive to frequently occurring bending forces, with the same use of material.
  • the inventor proposes to further develop the holding anchor known per se for connecting a first reinforced concrete slab, preferably a concrete outer slab, and a second reinforced concrete slab, preferably a concrete inner slab, with an insulating layer being arranged between the concrete slabs, in such a way that the holding anchor is made of Flat steel exists and this has to be hooked into the reinforcement.
  • the holding anchor according to the invention made of flat steel preferably has an elongated shape similar to an elongated U-shape, consisting of two longitudinal legs and a connecting web.
  • an elongated shape similar to an elongated U-shape, consisting of two longitudinal legs and a connecting web.
  • These recesses make it possible to simply hook the retaining anchors from below into a cross of a reinforcement mat during assembly, the retaining anchors jamming with the reinforcement in such a way that they come to stand upright.
  • Such recesses can, for example, be milled out or punched out more easily.
  • the excess material is not only simply removed during the punching process, but it can also be pushed away laterally as a nose, so that a type of embossing groove is created, into which the round steel bars of the reinforcement can be inserted.
  • the lateral recesses can have a height that corresponds to the height of the wire cross of a reinforcement mat into which the retaining anchor is to be hooked. Basically, this is about twice the diameter of the wires that make up the cross.
  • a further variant can consist in that each leg in the area of the connecting web has a recess on each side, which can each include a wire of a reinforcement mat, the recesses being arranged offset in height in accordance with the arrangement of the wires in a cross of a reinforcement mat ,
  • each leg in the area of the connecting web can have an additional cutout on each side, which can each include a wire of a reinforcement mat, so that there are two cutouts on each side of the longitudinal leg of the retaining anchor in the area of the connecting web.
  • the lateral recesses can be designed, for example, approximately semicircular or rectangular or triangular, and the corners can also be rounded.
  • the longitudinal legs can have opposite openings in the region of the connecting web, through which the wire of a reinforcement can be guided.
  • the retaining anchors advantageously have longitudinal legs, which have a configuration at their free end which enables them to be hooked to a reinforcement arranged at this end.
  • each longitudinal leg can have an opening at its free end through which a reinforcing bar can be inserted. This creates a secure connection between the reinforcement of two concrete layers.
  • Another possibility is to provide the free ends of the longitudinal legs with a shape such that these two ends can be simply connected to one another, preferably clipped on.
  • a shape can be produced, for example, by a punching process which punches a slot in one free end and pushes out a slightly curved tab at the other free end, which can be pressed into the slot and bends open again after being pressed through, so that a good connection between the two Ends.
  • the longitudinal legs can also be of different lengths, so that one of the free legs can be bent around a wire of the second reinforcement and then connected to the second end of the retaining anchor.
  • a separate connecting element preferably a screw or a clip or the like, can also be provided for connecting the free ends for the holding anchor.
  • the longitudinal legs can have an intermediate area in which the material thickness is reduced. This reduction in the thickness of the material reduces the heat conduction of the retaining anchor between the concrete layers.
  • this can be achieved in that one or both longitudinal legs are provided with at least one longitudinal slot or a longitudinal opening and / or one or both longitudinal legs are provided with at least one lateral recess in the intermediate area.
  • This configuration of the retaining anchors is particularly advantageous if the intermediate area is arranged in the area of an insulation layer between the concrete slabs to be connected, with a reduction in the material thickness.
  • the inventor proposes to either simply design it flat or to imprint a contour on the connecting web which surrounds a reinforcement wire, preferably in the diagonal direction or in the longitudinal direction, on one side.
  • the holding anchor can also be designed in such a way that the connecting web has one or two laterally bent tabs which have an opening for the passage of a reinforcement wire.
  • the material preferably used it should be noted that, for protection against corrosion, it can be made, for example, of VA material, preferably VA material.
  • the inventor also proposes the known composite concrete slab consisting of at least a first concrete slab, a second concrete slab, an insulation layer which is arranged between the concrete slabs, the first concrete slab being a first reinforcement and the second concrete slab being one have second reinforcement, and at least one retaining anchor for connecting the concrete slabs between the first and second reinforcement is to be improved in that the at least one retaining anchor between the concrete slabs is designed in accordance with the designs shown here.
  • Figure la-lc embodiment of a retaining anchor in 3 views with semicircular lower recesses
  • Figure 2a-2c Another embodiment of a retaining anchor in 3 views with elongated lower recesses
  • Figure 3 retaining anchors with material recess at medium height
  • Figure 4 3D view of the holder from Figures 2a-2c;
  • Figure 5 3D view of a retaining anchor for pushing reinforcing bars in concrete slabs on both sides;
  • Figure 6 3D view of a retaining anchor with additional tabs on the connecting web;
  • Figure 7 supervision of reinforcement with retaining anchor from figure
  • Figure 8 Side view of a composite concrete slab with reinforcement and retaining anchors
  • Figure 9 Side view of a composite concrete slab with reinforcement and retaining anchors, retaining anchors with an embossed groove in the connecting web;
  • Figure 10 top view of reinforcement with retaining anchor from Figure la-2c or 2a-2c;
  • FIGS la-lc show a first embodiment of a retaining anchor 1 in three side views.
  • the holding anchor consists of two elongated legs 2 and 3, which are connected to one another at one end via a connecting web 5. In the area of the connecting web, the legs 2 and 3 have cutouts 4 offset from one another.
  • the retaining anchor is hooked onto the cross on a wire cross of a reinforcement mat in such a way that the two wires of the cross engage in the lateral recesses and hook the retaining anchor 1 upright with the cross.
  • the concrete layer of this reinforcement can then be poured, with the retaining anchors protruding upwards.
  • the insulation layer is then applied, leaving an upper part of the retaining anchor free.
  • This part of the upper end of the legs each has an opening, here a round hole, through which a wire of the reinforcement of the concrete layer still to be applied is pushed. This concrete layer is then poured out. This creates a secure, tensile connection between the two concrete layers, with good insulation being achieved through the insulation layer.
  • the holding anchors shown are made in one piece and are formed by stamping from a sheet metal.
  • the holding anchors should preferably have a length / width ratio of at least 5: 1 to approximately 10: 1, the length of the web being somewhat larger than the width of the legs. Basically, the size ratios result from the geometric necessity to ensure that the retaining anchor is hooked onto the wire cross of the reinforcement.
  • FIGS. 2a-2c show a further embodiment of a retaining anchor 1, also in three side views. The difference between the retaining anchors lies in the lower recesses, which here correspond to approximately twice the wire diameter of the reinforcement used.
  • FIG. 3 shows an improved version of the holding anchor 1 in a side view.
  • two recesses 4 are provided on each side of the legs 2 and 3, for engaging the wires on the cross of a reinforcement mat, so that the direction and sequence of the wires of the cross need not be taken into account when inserting the retaining anchor ,
  • the legs of this retaining anchor have lateral material cutouts at a medium height. As a result, the material thickness in the area of the insulation layer and thus the thermal conductivity can be reduced, so that a better insulation is created between the two concrete layers to be connected.
  • FIG. 4 shows a 3D view of the holding anchor 1 from FIGS. 2a-2c, but a slot is made in the area of the insulation layer for each leg 2 and 3 in order to reduce the heat conduction in this area.
  • FIG. 5 also shows a 3D view of a retaining anchor 1, but in this embodiment there is an opening 9 in the legs 2 for pushing reinforcement bars of the two concrete slabs in addition to the openings 6 at the upper end and also at the lower end in the region of the connecting web 5 and 3 attached.
  • a wire can be placed over the connecting web 5 and the second wire arranged perpendicular to it can be pushed above through the two openings 9.
  • the holding anchors stand by themselves in a vertical position so that the upper end is freely accessible even after the lower concrete slab has been poured and can be connected to the next reinforcement.
  • either the opening 9 can be designed asymmetrically, for example square or oval, which, however, also requires a corresponding shape of the wire, so that the tilting of the Halt anchor is prevented.
  • the holding anchor in the area of the passage of the reinforcing wire to be hooked in such a way that the wire becomes jammed with the holding device.
  • a possibly separate additional clamping device can be provided, which prevents the holding anchor from tilting.
  • FIG. 6 Another embodiment of the holding anchor 1 is shown in FIG. 6 in a 3D view.
  • This illustration shows a holding anchor, which is formed in the region of the connecting web 5 with additional tabs 11.
  • These tabs 11 can optionally result from a bevel on the connecting web or can also be connected to one or each leg 2 and / or 3. Basically, it is sufficient if a tab is provided, but such tabs can be attached on both sides.
  • These tabs 11 in turn have an opening or a slot through which a reinforcement wire can be inserted.
  • FIG. 7 shows a top view of a reinforcement with a retaining anchor 1 according to the invention from FIG. 5.
  • the two reinforcement wires 12 of the lower reinforcement and 14 of the upper reinforcement arranged at right angles can be seen.
  • the wire 13 of the lower reinforcement running parallel to the reinforcement wire 14 is covered.
  • the two legs 2 and 3 can be seen through which the reinforcement wires run.
  • the connecting web 5 can be seen below, which runs below the wire 14.
  • FIG. 8 shows a side view of a composite concrete slab with reinforcement and retaining anchors corresponding to the design from FIG. 7.
  • the retaining anchor 1 runs from the concrete layer 15 arranged below, through the insulation layer 17 and hooks into the upper concrete layer 16 in the reinforcement arranged there.
  • FIG. 9 shows a similar side view of a composite concrete slab with reinforcement and retaining anchor 1 as in FIG. 8.
  • the retaining anchor 1 is provided in the area of the connecting web 5 with an embossed groove 18 through which the lower wire 12 of the reinforcement of the lower concrete layer 15 runs ,
  • FIG. 10 shows a top view of a reinforcement with a retaining anchor 1 from FIGS. 1a-2c or 2a-2c. Since this configuration of the retaining anchor leads to an angular offset of the course of the reinforcement bars of the upper and lower concrete layer, it can be particularly advantageous here to install a cross-over of the legs 2 and 3 of the retaining anchor 1 by approximately 45 °, so that subsequently a parallel alignment of the Reinforcing wires is possible.

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)

Abstract

L'invention concerne une ancre de maintien (1) servant à assembler une première dalle en béton armé (15), de préférence une dalle en béton extérieure, et une deuxième dalle en béton armé (16), de préférence une dalle en béton intérieure, une couche isolante (17) étant appliquée entre ces dalles en béton (15, 16). Selon la présente invention, cette ancre de maintien (1) est composée d'acier plat et ancrée dans les armatures (12, 13, 14). Ladite invention concerne également une dalle en béton composite présentant deux couches de béton armé (15, 16) et une couche isolante (17) appliquée entre ces dernières, l'ancre de maintien susmentionnée (1) étant utilisée pour assembler lesdites armatures.
PCT/DE2003/002472 2002-07-23 2003-07-23 Dalle en beton composite et ancre de maintien servant a assembler deux dalles en beton Ceased WO2004016874A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE20211116U DE20211116U1 (de) 2002-07-23 2002-07-23 Halteanker
DE20211116.4 2002-07-23

Publications (1)

Publication Number Publication Date
WO2004016874A1 true WO2004016874A1 (fr) 2004-02-26

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PCT/DE2003/002472 Ceased WO2004016874A1 (fr) 2002-07-23 2003-07-23 Dalle en beton composite et ancre de maintien servant a assembler deux dalles en beton

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DE (1) DE20211116U1 (fr)
WO (1) WO2004016874A1 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2004081313A1 (fr) * 2003-03-10 2004-09-23 Fachhochschule Giessen-Friedberg Elements d'armature et pieces en beton arme ou precontraint produites avec ces elements d'armature
US20110197529A1 (en) * 2008-11-07 2011-08-18 Carlo Calisse Connection system for prefabricated thermal break panels
DE102012018335A1 (de) * 2012-09-15 2014-03-20 Gotthard Fixle Halteanker zum Verbinden zweier durch eine Dämmschicht getrennter Betonplatten sowie aus wenigstens diesen Teilen gebildete Betonplatteneinheit

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH459519A (de) * 1966-09-20 1968-07-15 Haeussler Ernst Vorrichtung zum zusätzlichen Verbund der sogenannten tragenden Platte und der Aussenhaut bei Dreischichten-Betonplatten
DE1950680A1 (de) * 1969-10-08 1971-04-15 Schuckmann Kg Werner A Fertigwandelelement aus Betoninnenschicht,Betonaussenschicht,Isolationsschicht und Verbundanker
DE2150120A1 (de) * 1971-10-07 1973-04-26 Thor Waerner & Co Gmbh Profilband
FR2230827A1 (fr) * 1973-05-26 1974-12-20 Thor Waerner & Co Gmbh
US4283896A (en) * 1978-11-15 1981-08-18 Siegfried Fricker Tie anchor for sandwich panels of reinforced concrete
DE3210664A1 (de) * 1982-03-23 1983-10-06 Mod Lok Ind Ltd Abstands- und streckelement zur verwendung bei vorgefertigten bauelementen
US4624089A (en) * 1983-07-14 1986-11-25 Siegfried Fricker Tie anchor for reinforced sandwich panels

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH459519A (de) * 1966-09-20 1968-07-15 Haeussler Ernst Vorrichtung zum zusätzlichen Verbund der sogenannten tragenden Platte und der Aussenhaut bei Dreischichten-Betonplatten
DE1950680A1 (de) * 1969-10-08 1971-04-15 Schuckmann Kg Werner A Fertigwandelelement aus Betoninnenschicht,Betonaussenschicht,Isolationsschicht und Verbundanker
DE2150120A1 (de) * 1971-10-07 1973-04-26 Thor Waerner & Co Gmbh Profilband
FR2230827A1 (fr) * 1973-05-26 1974-12-20 Thor Waerner & Co Gmbh
US4283896A (en) * 1978-11-15 1981-08-18 Siegfried Fricker Tie anchor for sandwich panels of reinforced concrete
DE3210664A1 (de) * 1982-03-23 1983-10-06 Mod Lok Ind Ltd Abstands- und streckelement zur verwendung bei vorgefertigten bauelementen
US4624089A (en) * 1983-07-14 1986-11-25 Siegfried Fricker Tie anchor for reinforced sandwich panels

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2004081313A1 (fr) * 2003-03-10 2004-09-23 Fachhochschule Giessen-Friedberg Elements d'armature et pieces en beton arme ou precontraint produites avec ces elements d'armature
EP2075388A1 (fr) * 2003-03-10 2009-07-01 Fachhochschule Giessen-Friedberg Eléments d'armature et pièces en béton armé ou précontraint ainsi produites avec ces éléments d'armature
US20110197529A1 (en) * 2008-11-07 2011-08-18 Carlo Calisse Connection system for prefabricated thermal break panels
US8910440B2 (en) * 2008-11-07 2014-12-16 Carlo Calisse Connection system for prefabricated thermal break panels
DE102012018335A1 (de) * 2012-09-15 2014-03-20 Gotthard Fixle Halteanker zum Verbinden zweier durch eine Dämmschicht getrennter Betonplatten sowie aus wenigstens diesen Teilen gebildete Betonplatteneinheit

Also Published As

Publication number Publication date
DE20211116U1 (de) 2002-09-12

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