EP2766134B1 - Verfahren zur herstellung von betonkonstruktionen mit gewebten armierungsrahmen - Google Patents

Verfahren zur herstellung von betonkonstruktionen mit gewebten armierungsrahmen Download PDF

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Publication number
EP2766134B1
EP2766134B1 EP12795017.8A EP12795017A EP2766134B1 EP 2766134 B1 EP2766134 B1 EP 2766134B1 EP 12795017 A EP12795017 A EP 12795017A EP 2766134 B1 EP2766134 B1 EP 2766134B1
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European Patent Office
Prior art keywords
ladders
concrete
bars
main
hoops
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Active
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EP12795017.8A
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English (en)
French (fr)
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EP2766134A1 (de
Inventor
Philippe Durand
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Constance Corp SA
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Constance Corp SA
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Publication of EP2766134A1 publication Critical patent/EP2766134A1/de
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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21F—WORKING OR PROCESSING OF METAL WIRE
    • B21F27/00—Making wire network, i.e. wire nets
    • B21F27/12—Making special types or portions of network by methods or means specially adapted therefor
    • B21F27/121—Making special types or portions of network by methods or means specially adapted therefor of tubular form, e.g. as reinforcements for pipes or pillars
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21F—WORKING OR PROCESSING OF METAL WIRE
    • B21F27/00—Making wire network, i.e. wire nets
    • B21F27/12—Making special types or portions of network by methods or means specially adapted therefor
    • B21F27/121—Making special types or portions of network by methods or means specially adapted therefor of tubular form, e.g. as reinforcements for pipes or pillars
    • B21F27/122—Making special types or portions of network by methods or means specially adapted therefor of tubular form, e.g. as reinforcements for pipes or pillars by attaching a continuous stirrup to longitudinal wires
    • B21F27/124—Making special types or portions of network by methods or means specially adapted therefor of tubular form, e.g. as reinforcements for pipes or pillars by attaching a continuous stirrup to longitudinal wires applied by rotation
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21F—WORKING OR PROCESSING OF METAL WIRE
    • B21F27/00—Making wire network, i.e. wire nets
    • B21F27/12—Making special types or portions of network by methods or means specially adapted therefor
    • B21F27/20—Making special types or portions of network by methods or means specially adapted therefor of plaster-carrying network
    • 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
    • E04C5/0604—Prismatic or cylindrical reinforcement cages composed of longitudinal bars and open or closed stirrup rods
    • E04C5/0618—Closed cages with spiral- or coil-shaped stirrup rod
    • 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
    • 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
    • E04C5/065—Light-weight girders, e.g. with precast parts

Definitions

  • the present invention relates to a method of manufacturing concrete slabs, floors or roofs using reinforcements.
  • the method described applies to the realization of the reinforcement of concrete structures whether they are prefabricated, or more generally filled on a construction site.
  • Concrete is an excellent material which accepts high compressive stresses.
  • concrete is characterized by very low admissible tensile stresses (10% of admissible compressive stresses). This is the reason why a concrete structure is always reinforced, at least in a tight zone, in order to compensate for the resumption of the tensile stresses of low-value concrete.
  • Ladder type reinforcements with coiled turns are for example known from the document US-A-3,749,140 , on which the preamble of claim 1 is based.
  • frames are available which surround the main reinforcements and prevent the vacuum thrust of the main steels. These devices (frames) wrap the main steel structure and confine the concrete located inside these “fret frames”.
  • the concrete reinforcements are in the form of a cage formed by two welded trusses kept at a distance by spacers. These the latter are either triangular in section or wavy in profile.
  • the trellises are attached to the spacers and fixed to them by ligatures or welding.
  • the admissible transverse stresses of the structure are proportional to the section and to the nature of the truss connections with the spacers.
  • the said connections (welded by points or ligated) are low values (1 to 2mm 2 ) and do not make it possible to take up the transverse stresses in the event of significant loads.
  • the figure 1 represents an elementary example of a ⁇ 1 ⁇ scale subset.
  • This sub-assembly ⁇ 1 ⁇ is composed of high-adhesion spinning steels 2a, 2b, 2c. These threads are arranged at the vertices of an isosceles triangle. The height of said triangle depends on the thickness of the regulatory coatings applied to the concrete structure to be produced. Around these threads is wound a spring, called hoop 3, according to a determined generally constant pitch (for example 20 cm).
  • This continuous 3 fret is shown in steps to the right on the figure 1a .
  • the present invention implements crossed frets, which means the winding of at least two frets, one of not to the right, the other of not to the left, as shown in the figure. figure 1b .
  • the latter is constituted by turns 3a, 3b, 3c to the right of each string High adhesion (HA) 2a, 2b, 2c which turns are connected by straight lines 3d, 3e, 3f.
  • HA High adhesion
  • a reinforcement cage according to the process.
  • Said cage is constituted by a juxtaposition of scales ⁇ 1 ⁇ in alternating arrangement.
  • Said scales ⁇ 1 ⁇ are connected in the internal part of the cage, that is to say inside the triangle whose vertices are defined by the threads 2a, 2b and 2c of the scales ⁇ 1 ⁇ , by steels generally in high adhesion (HA) 4 substantially orthogonal to the HA 2a, 2b & 2c of the scales.
  • HA high adhesion
  • these HA 4 are arranged in the loops of the hoops 3.
  • the HA 4 are fixed on the main ladders by ligatures, spot welding or other device (by gluing example) which ensures sufficient fixation for transport, installation and filling without deformation outside tolerances.
  • the scales ⁇ 1 ⁇ are arranged in the same direction, that is to say that the base of the triangles is in the same plane and more generally in the case of curved structures or with double curvature of the same side of the interior or exterior surface to increase the steel rate of the side of the surface to exhibit the highest compound tensile or flexural strength.
  • a relevant arrangement is shown for the production of a three-dimensional cage in two substantially orthogonal directions.
  • the main scales ⁇ 1 ⁇ can have their bases on the same side or inverted.
  • the said main scales are crossed by secondary scales ⁇ 5 ⁇ whose height is less than that of the main scales ⁇ 1 ⁇ .
  • the secondary ladders ⁇ 5 ⁇ are fixed on the main ladders ⁇ 1 ⁇ by ligatures, spot welding or other device which ensures sufficient fixing for transport, implementation and filling without deformation outside tolerances.
  • the parallelepipedal void between the main and secondary ladders can be formed, for example, by slabs 6 preferably made of composite but also of any other material.
  • the upper form 7 of said slabs will be in the form of a vault in order to keep the concrete 8 of the compression slab completely compressed.
  • this void can also be obscured by large-sized panels such as photovoltaic panels or solar panels.
  • the saving in material (concrete) on a floor is significant (40% for example). It translates into financial savings in terms of but also in implementation.
  • this saving which is reproduced on all floors of the structure, generates a saving in own weight. The latter leads to substantial savings in terms of foundations.
  • FIG. 5 different sections are shown schematically.
  • a flat section in figure 5a a triangular section in figure 5b , a rectangular section in figure 5c , a polygonal section in figure 5d .
  • the strings 2 (i) placed at the vertices of the section have equal or different diameters depending on the stresses to which they will be subjected.
  • a circumscribed circle is defined. This circle tangent from the outside to the diameters of the threads has a center which will constitute the axis of rotation used for the realization of the scales and described below and shown schematically on Plate 6.
  • the figures 6a, 6b , 6c are perspective views and the figure 6d is a detail view. These views schematize an example of an automatic machine making it possible to produce the ⁇ 1 ⁇ & ⁇ 5 ⁇ scale subassemblies according to the above specifications.
  • the frame assembly ⁇ 9 ⁇ fixed to the ground, is composed successively of the following parts: cheeks 9a and 9b whose main faces are vertical and kept parallel at a distance by spacers 9c & 9'c whose bracing is not represented.
  • the distance between the faces of the cheeks 9a & 9b will be determined in order to allow the realization of the longest of the ladders (for example 8m).
  • a wire straightening brake 9f On the upper support part 9'd, is positioned a wire straightening brake 9f. Said rectifier 9f is provided with a device which easily allows height adjustment (for example pinions linked in rotation and acting on the racks 9e). It is easily understood that, in order to produce a crossed winding, devices 9'd, 9 'e & 9'f are arranged symmetrically with respect to the main axis of the machine. For reasons of lightening and good comprehension, these symmetrical elements have not been represented on the drawings of plates 6.
  • the cheeks 9a & 9b of the chassis are provided with bearings 10, the axes of which are preferably located on the same circle and equidistant (for example 60 ° as shown in figure 5b ).
  • these axes 10 are arranged, preferably alternately, a lead screw 11 and a rotational drive axis 12. Said parts 11 & 12 being at least equal in number to three each.
  • the lead screws 11 have a fixed pitch (for example 5mm).
  • Each lead screw 11 is provided with a nut 18 movable in translation.
  • Said nut 18, preferably ball nut, is integral with a disc 22, the translation of which is ensured by the lead screw connection 11 with said ball nut 18.
  • Each axis of rotation 12 rotates a fixed pinion 13 and a movable pinion 14.
  • the fixed pinion 13 rotates a ring gear 16 in a plane fixed relative to the frame ⁇ 9 ⁇ .
  • the movable pinion 14, with the same modulus and number of teeth as the pinion 13, is integral in translation with the translation disc 22.
  • Said movable pinion 14 rotates a movable ring gear 19.
  • the rotations of the parts 11 are identical and confirmed by any means not shown (toothed belts for example). It is the same for the rotation axes 12.
  • the rotations of the parts 11 & 12 are different and adjustable by a reduction gear located between the motor 15 and the drive pinions of the lead screws 11 and the rotation axes 12.
  • the fixed gears 13 rotate an upstream disc 16 located in a plane parallel to the cheek 9b and at a fixed distance.
  • On said disc 16 is fixed, in rotation and at an adjustable distance with the latter, a guide 17 coaxial with the disc 16.
  • the upstream disc 16 is provided with passages for the upstream steels ⁇ 20 ⁇ .
  • the disc 16 will be provided with holes allowing the production of a whole range of ladders or beams according to the process.
  • these passages will be made on a secondary disc 16 '(not shown for clarity) which is centered and attached to the disc 16.
  • a translation disc 22 Downstream part a translation disc 22 on which are fixed nuts 18 (not shown) preferably ball. Said nuts 18 are coaxial with the lead screws 11.
  • the disc 22 drives in horizontal displacement the movable gears 14 located on the axes 12.
  • a rotating drive disc 19 Coaxial with the displacement disc 22 and the upstream ring gear 16, a rotating drive disc 19 is provided. Said disk 19 is free to rotate with respect to translation disk 22 but fixed in translation with respect to the latter.
  • the rotation ring 19 is provided with the same bar passages as those of the upstream disc 16. During assembly, the passages in the discs 16 and 19 will be coaxial. This property will be verified for example by aligning two marks located on said discs 16 and 19.
  • the discs 16 & 19 are notched and driven in the same rotation by respectively the fixed 13 & movable pinions 14.
  • the disc 19 is moreover provided with locking parts (not shown) which ensure the locking of steels ⁇ 20 ⁇ in their housing. These locking pieces will for example be American spring clips.
  • the disc movable in translation 22 is close (for example 50 mm) to the downstream guide 17.
  • the hooking parts of the bars HA are opened first and then closed again. This phasing makes it possible to secure the upstream bars ⁇ 20 ⁇ , which will constitute the stringers 2a, 2b & 2c of the scale, with the movable rotation ring 19 itself integral in translation with the disc 22.
  • the rectifier brake 9f winds the wrapped wire 3 along the spline defined above.
  • Phase 1 end of phase
  • Phase 2 cutout of scale 1 - see figures 6f & 6g :
  • the operator puts the motor control in the reverse position so as to bring all of the movable discs 19 & 22 to the phase 0 position described above. It should be noted that the position is preferably indexed by a stop.
  • Plates 7 show schematically in different views an example of a production bench which makes it possible to produce the cages of woven reinforcements.
  • the said bench can be manual or automated.
  • This device ⁇ 23 ⁇ connects the sets of tables ⁇ 21 ⁇ & ⁇ 22 ⁇ at a distance which allows the storage of adjoining scales ⁇ 1 ⁇ in sufficient quantity, depending on the pitch and height of the largest panel to be made. Said device must minimize the friction forces and is for example constituted, as shown in figure 7a , by rollers on bearings 39.
  • Said device is completed by the extension of the stop 30, not shown, the face of which will serve as a stop.
  • the figure 7b represents phase 1 which corresponds to the introduction of the main scales ⁇ 1 ⁇ in the storage area 23.
  • the secondary ladders (the shortest) ⁇ 1 ' ⁇ are placed on the belts 29a either manually or automatically from a vertical store which distributes the scales ⁇ 1' ⁇ one by one at each advance of the belts 29a . Since these devices are known to those skilled in the art, it is not useful to recall them here.
  • the scales ⁇ 1 ' ⁇ are brought into the final position when the first scale ⁇ 1' ⁇ reaches the end stop 34. It should be noted that, as shown schematically on the figure 7c and detail, said ladders ⁇ 1 ' ⁇ were previously equipped with centering devices 33 attached or produced by bending the continuous HA 2a, 2b & 2c so as to form a pyramid.
  • the figure 7c diagram phase 2 which corresponds to the introduction of the scales ⁇ 1 ' ⁇ in the main scales ⁇ 1 ⁇ .
  • the introduction of said scales ⁇ 1 ' ⁇ into the spaces of the main scales ⁇ 1 ⁇ can for example be carried out in advance either manually or automatically of the pusher 35.
  • the adjustment of the stops 34 & 31 will be done so that the median axis of the secondary scales ⁇ 1 ' ⁇ is substantially coincident with the top of the hoop 3 of the main scale ⁇ 1 ⁇ (see detail 7c).
  • the figure 7d diagram phase 3 which corresponds to the fixing of the bars 2a & 2b of the main ladders ⁇ 1 ⁇ with the bars 2a '&2b' of the ladders secondary ⁇ 1 ' ⁇ .
  • this fixing can be by spot welding, ligation, gluing or of any other nature.
  • the figure 7 e represents phase 3 which corresponds to the indicative phase of the start of welding of the secondary scales ⁇ 1 ' ⁇ .
  • the electrodes 30 & 30 ' are in raised positions.
  • the figure 7f represents phase 4 which corresponds to the indicative phase of fixation.
  • the electrodes 30 & 30 ' are in the working position.
  • the operation of said electrodes can be conventionally by jacks, mechanical (eccentric equipped with an elastic system), or by any other device which makes it possible to maintain under pressure the parts to be fixed 2a & 2b with 2'a &2'b and in the case of fixing by soldering to control the electrical circuit.
  • the figure 7g diagrams phase 5 at the end of the cycle.
  • the belts 29 advance step by step, driving the main scale 1 immediately following that which has just been fixed.
  • Phases 7 d to 7 f are carried out until the final product reaches the adjustable stop 36 not shown at the end of the product.
  • Said stopper can be either magnetic, mechanical or any other known device.

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  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Wire Processing (AREA)
  • Butt Welding And Welding Of Specific Article (AREA)

Claims (5)

  1. Verfahren zur Herstellung einer Betonstruktur unter Verwendung von zusammengesetzten Betonarmierungen, die insbesondere dazu bestimmt sind, Querverformungen des Betons unter der Wirkung der Poissonzahl entgegenzuwirken, wobei die Armierungen, auch Gitterelemente (1, 5) genannt, aus Längsstählen (2a, 2b, 2c), auch Längsstreben (2a, 2b, 2c) genannt, hergestellt sind, um die herum mindestens zwei Ringelemente (3) angeordnet sind,
    wobei jedes der Ringelemente (3) einem Profil folgt, das aus einer Folge von Windungen (3a, 3b, 3c) besteht, die um die genannten Längsstreben (2a, 2b, 2c) herum angeordnet sind und diese durch geneigt verlaufende Geraden (3d, 3f, 3e) verbinden, wobei eines der Ringelemente rechtsgängig, ein anderes linksgängig ist,
    dadurch gekennzeichnet, dass
    somit Hauptgitterelemente (1) und Nebengitterelemente (5) gebildet werden, deren Höhe geringer ist als die der Hauptgitterelemente (1);
    ein dreidimensionaler Korb (43) gebildet wird, indem zwischen den Längsstreben (2a, 2b, 2c) der Hauptgitterelemente (1) in einer im Wesentlichen orthogonalen Richtung die Nebengitterelemente (5) befestigt werden; und
    es sich bei der genannten armierten Betonstruktur um eine Betondecke, einen Bodenplatte oder ein Dach aus Beton handelt.
  2. Verfahren nach Anspruch 1,
    dadurch gekennzeichnet, dass
    die Verankerungen jedes Ringelements (3) auf die Enden der Gitterelemente (1) beschränkt sind.
  3. Verfahren nach einem der Ansprüche 1 oder 2,
    dadurch gekennzeichnet, dass
    zum Ausbilden eines dreidimensionalen Korbs (43) in einer bevorzugten Richtung die Gitterelemente (1) so angeordnet werden, dass die Basisebenen und die Scheitel der aufeinanderfolgenden Gitterelemente (1) annähernd in der gleichen Richtung oder wechselweise verlaufen, wobei die Gitterelemente ferner durch Stähle (4) mit hoher Haftfestigkeit (HA) verbunden sind, wobei:
    - deren Achsen im Wesentlichen orthogonal zu den Achsen der Längsstreben (2a, 2b, 2c) der Gitterelemente (1) verlaufen,
    - sie in den Schlaufen (3a - 3e) der Ringelemente angeordnet sind und tangential zur Innenseite der Längsstreben (2a, 2b, 2c) der Gitterelemente (1) verlaufen,
    - und an diesen Längsstreben befestigt sind.
  4. Verfahren nach einem der Ansprüche 1 und 2,
    dadurch gekennzeichnet, dass
    im Rahmen der Herstellung eines Daches ein Leerraum zwischen den Gitterelementen (1, 5) mit großformatigen Vorrichtungen, vorzugsweise mit einem Solar- oder Fotovoltaikpaneel, abgedeckt wird.
  5. Verfahren nach einem der Ansprüche 1 und 2,
    dadurch gekennzeichnet, dass
    im Rahmen der Herstellung einer Betondecke oder Bodenplatte ein Leerraum zwischen den Gitterelementen (1, 5) mit Hohldielen (6) verschalt ist, die vorzugsweise eine gewölbte obere Form haben, um den Beton (8) der "Druckplatte" unter Druckspannung zu halten.
EP12795017.8A 2011-10-10 2012-10-08 Verfahren zur herstellung von betonkonstruktionen mit gewebten armierungsrahmen Active EP2766134B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR1103070A FR2980991B1 (fr) 2011-10-10 2011-10-10 Cage d'armatures tissees pour ouvrages en beton.
PCT/FR2012/000396 WO2013054006A1 (fr) 2011-10-10 2012-10-08 Cage d'armatures tissées pour ouvrages en béton et procédés de fabrication

Publications (2)

Publication Number Publication Date
EP2766134A1 EP2766134A1 (de) 2014-08-20
EP2766134B1 true EP2766134B1 (de) 2020-09-09

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EP (1) EP2766134B1 (de)
FR (1) FR2980991B1 (de)
WO (1) WO2013054006A1 (de)

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CN211622277U (zh) * 2019-09-27 2020-10-02 何满潮 Npr螺旋钢筋
CN112371878B (zh) * 2020-11-10 2022-09-27 广东博智林机器人有限公司 钢筋绑扎装置

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4002001A1 (de) * 1990-01-24 1991-07-25 Heinz Wieland Anschlussverankerung zur abstuetzung mindestens eines vorkragenden bauwerkteiles sowie anschlusselement

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Publication number Priority date Publication date Assignee Title
FR1243364A (fr) * 1958-12-24 1960-10-07 Rheinbau Gmbh Plafond à armature croisée
US3579259A (en) * 1969-06-23 1971-05-18 Nippon Rocla Pipes Co Ltd Apparatus for making a double-layer reinforcing cage for concrete pipes
GB1326142A (en) * 1970-07-02 1973-08-08 Debry M Machine for the automatic continuous manufacture of re inforcements
DE3615460C1 (de) * 1986-05-07 1987-10-01 Loesch Manfred Dipl Ing Vorrichtung zur Herstellung von Bewehrungen von fuer Bauzwecke vorgesehenen Platten aus Stahlbeton fuer Fertigdecken
AT399006B (de) * 1989-09-25 1995-03-27 Erwin Dipl Ing Wendl Verfahren zur herstellung von teilen für stahlbetonbewehrungen
DE4031383A1 (de) * 1990-10-04 1992-04-09 Hugo Bittlmayer Vorrichtung zum aufbringen und verbinden von vorgefertigten gittertraegern auf eine auf abstuetzungen ruhende vorgefertigte bewehrungsmatte
WO2005019537A1 (en) * 2003-08-20 2005-03-03 Hawkstone Marketing (Pty) Ltd Support structure

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4002001A1 (de) * 1990-01-24 1991-07-25 Heinz Wieland Anschlussverankerung zur abstuetzung mindestens eines vorkragenden bauwerkteiles sowie anschlusselement

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EP2766134A1 (de) 2014-08-20
WO2013054006A1 (fr) 2013-04-18
FR2980991B1 (fr) 2014-07-04
FR2980991A1 (fr) 2013-04-12

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