EP0416964B1 - Bewehrungselemente für Stahlbeton sowie Verfahren und Vorrichtung für deren Herstellung - Google Patents

Bewehrungselemente für Stahlbeton sowie Verfahren und Vorrichtung für deren Herstellung Download PDF

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Publication number
EP0416964B1
EP0416964B1 EP90402183A EP90402183A EP0416964B1 EP 0416964 B1 EP0416964 B1 EP 0416964B1 EP 90402183 A EP90402183 A EP 90402183A EP 90402183 A EP90402183 A EP 90402183A EP 0416964 B1 EP0416964 B1 EP 0416964B1
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EP
European Patent Office
Prior art keywords
elements
reinforcement
flexible
strips
strip
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
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EP90402183A
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English (en)
French (fr)
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EP0416964A2 (de
EP0416964A3 (en
Inventor
Michel Aerts
Richard Polak
Jean-Michel Dumas
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Recherche Et D'etudes Techniques Saret SA
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Recherche Et D'etudes Techniques Saret SA
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Priority to AT90402183T priority Critical patent/ATE87057T1/de
Publication of EP0416964A2 publication Critical patent/EP0416964A2/de
Publication of EP0416964A3 publication Critical patent/EP0416964A3/fr
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Publication of EP0416964B1 publication Critical patent/EP0416964B1/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
    • E04C5/02—Reinforcing elements of metal, e.g. with non-structural coatings of low bending resistance, i.e. of essentially one-dimensional [1D] or two-dimensional [2D] extent
    • E04C5/04—Mats
    • 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

Definitions

  • the invention relates to a set of reinforcements for reinforced concrete products, as well as a method and an installation for its manufacture.
  • Reinforcements of this type are well suited to concrete products in which the mechanical forces to be taken up are made in two perpendicular directions, which means that they are bidirectional.
  • reinforcements of this type have the disadvantage of being ill-suited to concrete products in which the mechanical forces to be taken up are made in one direction (unidirectional forces) or in which the forces are already taken up in one direction by other frames.
  • This is the case in particular of prestressed concrete products, which include reinforcements or prestressing steels already taking up the forces in one direction.
  • one of the two layers of reinforcement of the welded mesh has the sole function of maintaining the other layer at a given distance.
  • one of the two layers of reinforcements is superabundant from the point of view of the mechanical resistance of the reinforced concrete product.
  • conventional welded mesh is generally prefabricated in the factory, by means of particularly heavy installations, and according to generally predetermined dimensions, which does not allow the user to optimize the quantities of steel, further requires cuts during installation and also requires numerous handling operations, several panels being generally necessary for the same application. This results in loss of material and labor time.
  • the conventional welded mesh has the other disadvantage of often having flatness defects and it is then necessary, taking into account the rigidity of the steels connecting the reinforcements, to make close fastenings during the establishment of the reinforcement ply.
  • the longitudinal flexible elements are steel wires of diameter smaller than that of the steel wires which constitute the transverse reinforcements, which makes it possible to give a certain flexibility to the assembly and to put it in the form of a roll.
  • the object of the invention is in particular to provide a set of fittings suitable for overcoming the drawbacks mentioned above.
  • the invention also aims to provide such a set of frames which is not bulky in transport, handling and storage, which can be easily cut during installation and which does not have a flatness defect.
  • the invention relates more particularly to a set of reinforcements of the type described in the aforementioned document, which is characterized in that each flexible element is formed from at least one strip of plastic, in particular polypropylene.
  • the transverse reinforcements are generally rectilinear steel bars held parallel to one another by the flexible elements.
  • This assembly is then presented, once spread out, in the form of a sheet formed by said steel bars and said flexible connecting elements, linked to the bars at each intersection.
  • the width of the ply is then defined by the cutting length of the steel bars while its length can be adapted to its use, since it suffices to cut the flexible elements to the desired length.
  • the spacing or interval between the bars can be constant or variable, depending on the mechanical forces to be taken up.
  • the set of reinforcements of the invention thus offers various significant advantages compared to conventional welded mesh.
  • the assembly can be packaged in the form of a roll.
  • This roller facilitates transport since, for the same quantity of useful reinforcements, it occupies less volume than a welded mesh.
  • the flexible elements occupy less volume than the steel elements they replace and are of a lower weight than the latter. They also allow the web to be wound on a small diameter drum.
  • Such packaging consequently facilitates storage and handling at the place of use.
  • the installation of the set of frames is simplified since it suffices to unroll the sheet of frames, the flexible elements exerting no resistance to the unwinding.
  • the flexibility of the connecting elements allows the reinforcements to be deposited by gravity in a plane, which limits or removes the fasteners.
  • the geometry of the ply (length, width, pitch between transverse reinforcements) can be perfectly adjusted to a place of use and to the desired mechanical strengths. This optimizes the quantity of steel used and reduces losses.
  • Another advantage of the invention results from the fact that the longitudinal flexible elements are of lower cost than the steels which they replace.
  • the reinforcement assembly of the invention can be manufactured with simpler equipment than that necessary for the manufacture of a conventional welded mesh.
  • the set of frames of the invention can also be produced with non-rectilinear elements, in which case the set, in the unrolled state, is no longer in the form of a sheet.
  • the assembly can be packaged, not in the form of a roll, but in the form of an accordion structure, in which the longitudinal reinforcements are brought together.
  • each flexible element comprises two strips superimposed and welded punctually to each other on either side of each frame.
  • one of the strips is continuous, while the other is continuous or punctual.
  • the bonding process may in particular require knotting, gluing, ultrasonic welding or heating blade, stapling, etc.
  • the bonding method can use ultrasonic welding or a heating blade.
  • each flexible element is formed from two strips of plastic material, namely a lower strip fed from an unwinder and an upper strip fed from another unwinder, the two strips are welded. '' to each other from time to time on either side of the frame to be fixed.
  • This welding is preferably carried out by ultrasonic means provided at the connection station.
  • the formed sheet can be simply wound on a drum.
  • the invention relates, in another aspect, to an installation for manufacturing the above-mentioned set of reinforcements.
  • each connecting head is provided with welding means, for example ultrasonic.
  • the supply means comprise, for each flexible element, two unwinders suitable for receiving respectively a lower strip roll and an upper strip roll. This allows superimpose the two strips before welding, each time surrounding the reinforcement to be linked. Welding is then carried out on either side of this reinforcement over a limited length.
  • the installation of the invention comprises, associated with each unwinder, a brake controlled by a pivoting lever provided with a return pulley around which the strip is wound, so that the brake is released when traction is exerted by the strap, while the brake is blocked when this traction ceases.
  • the installation comprises four pairs of unwinders, which makes it possible to fix four flexible elements, each formed by the superposition of two strips.
  • the means for advancing the installation of the invention advantageously comprise clamps with horizontal translation, each capable of gripping a flexible element downstream of the connection station in order to advance the assembly in one step.
  • the installation includes a fixed stop and an adjustable stop associated with each clamp to adjust the pitch between two successive transverse frames as desired.
  • the installation In the case where the installation is used for the manufacture of a set of reinforcements formed from rectilinear transverse reinforcements, it also comprises a receiving drum on which the sheet thus formed is wound.
  • Figure 1 shows a set of reinforcements according to the invention, generally designated by the reference 10.
  • This set includes a multiplicity rigid transverse reinforcements 12 spaced from one another which, in the example shown, are steel bars of the same length arranged parallel to each other.
  • the assembly 10 also comprises longitudinal flexible elements 14 which are four in number in the example shown. Each frame 12 is thus linked to the four flexible elements 14 by four nodes 16.
  • each of the frames 12 is a steel bar with a diameter of four or five millimeters and a length of 2.40 meters.
  • the interval i (or not) between two consecutive reinforcements 12 can be adjustable from 50 to 50 millimeters in a range comprised, for example, between 100 and 450 millimeters.
  • the flexible elements 14 extend parallel to each other, the distance d separating two consecutive elements 14 being equal to 60 centimeters.
  • each flexible element is formed by two strips of plastic material with a width of 10 millimeters, these two strips being punctually welded together, as will be seen below.
  • FIG. 2 shows schematically the installation for the manufacture of a set of frames according to the invention.
  • This installation comprises a connection station 18 comprising a fixed frame 20 forming a horizontal table 22 with which cooperate four connection heads 24 intended to ensure the connection of each frame 12 with the flexible elements 14.
  • each flexible element 14 (only one of which is visible in FIG. 2) is formed by the assembly of two strips, namely an upper strip 14A and a lower strip 14B, these two strips coming respectively an upper roller 26A and a lower roller 26B carried respectively by an upper unwinder 28A and a lower unwinder 28B.
  • the installation thus comprises four upper unwinders 28A and four lower unwinders 28B.
  • the installation further comprises a distributor 30 comprising a movable frame 32 provided with wheels 34 and having an inclined table 36 forming a magazine and intended to present the transverse bars 12. The latter are then brought one by one into the limited space between the four pairs of strips 14A, 14B immediately upstream of the connecting heads 24, relative to the direction of movement of the strips (arrow F).
  • a distributor 30 comprising a movable frame 32 provided with wheels 34 and having an inclined table 36 forming a magazine and intended to present the transverse bars 12. The latter are then brought one by one into the limited space between the four pairs of strips 14A, 14B immediately upstream of the connecting heads 24, relative to the direction of movement of the strips (arrow F).
  • the strips 14A and 14B are made of plastic, in particular polypropylene, and the four heads 24 are welding heads intended to ensure the mutual welding of the four pairs of strips on either side of a frame. transverse, as shown below with reference to Figure 3.
  • connection heads 14 not necessarily being welding heads.
  • the four pairs of strips 14A and 14B are moved step by step in the direction of the arrow F, while a transverse reinforcement 12 is brought to the table 22 and below the welding heads 24 by means which will be described below. . These heads 24 are then moved vertically downwards to ensure the connection of the four pairs of strips which keep the corresponding frame 12 trapped. This gives a sheet which can be wound on a receiving drum 36 ( Figure 2).
  • the upper strip 14A is wound around the frame 12 and is welded punctually to the lower strip 14B by two welding zones 38 and 40 arranged on either side of the frame 12.
  • these two zones 38 and 40 may each extend over a length 1 of the order of 10 millimeters.
  • two welding zones are obtained, each corresponding to a square with a side of 10 millimeters.
  • the table 36 defines an inclined plane of curved shape extending from an upstream end 42 to a downstream end 44, the downstream end 44 being situated at a level lower than that of the end upstream 42.
  • a guide 46 provided with a lower surface 48 of curved shape disposed opposite a part of the table 36.
  • the table 36 and the guide 46 thus define a store suitable for receiving a plurality of transverse bars 12 deposited one next to the other.
  • a horizontal bar 50 is placed upstream of the guide 46 to prevent the passage of two crossed frames 12.
  • the table 36 and the guide 46 thus form a store in which the frames 12 are stored side by side and parallel to each other and to the horizontal. This store is practically tangent to the vertical in its lower part which is adjacent to the end 44.
  • the drawers 52 are provided with respective notches 54 which, when the drawers are in the rear position (FIG. 4), receive an armature 12.
  • the drawers 52 are movable in synchronism and suitable for bringing an armature 12 in the horizontal space 56 limited between an upper plate 58 and a lower plate 60, this space 56 leading to an eclipsable stop 62.
  • the frame 12 is then brought to the eclipsable stop 62 (FIG. 5B) and is then blocked between this stop 62 and each drawer 52 in the position of connection to the strips 14A, 14B.
  • the welding heads 24 are then moved in synchronism vertically downwards (FIG. 5B) to make the connection of the four pairs of strips (14A, 14B) around the frame 12.
  • the welding heads 24 are moved vertically upwards and the drawers moved horizontally backwards (FIG. 5C) to return to their initial position (FIG. 5D) where they can accommodate a new frame 12 in order to repeat the same cycle as before.
  • Each of the unwinders for example the unwinder 28A intended to receive the roller 26A, is formed by two flanges secured to a cylindrical core 64 coaxial with the axis 66 of the unwinder.
  • Each unwinder for example 26A, is associated with a brake 68 constituted by a lever 70, one end 72 of which is pivotally mounted about an axis 74 and the other end 76 of which carries free rotation a deflection pulley 78 on which the strip 14A is wound, the latter then passing around a deflection pulley 80 rotatably mounted around a fixed axis 82.
  • the lever 70 comprises a curved intermediate portion 84 capable of rubbing against the core 64 for brake the rotation of the unwinder.
  • the installation comprises four unwinders 28A and four unwinders 28B.
  • the four lower strips 14B arrive at the welding station passing under the table 36 ( Figure 2) and therefore under the frame to be fixed, while the four upper strips 14A arrive above the frame 12 to be fixed.
  • the straps are guided and positioned using eight 80 pulleys.
  • each welding head 24 is moved in synchronism vertically downwards to ensure the welding of the four pairs of strips.
  • the lower part of each welding head is provided with an imprint 86 having the same shape. that the armature, so that each welding head can span the armature and weld the two strips on either side of it, as shown previously in Figure 3.
  • the welding heads are of the ultrasonic type in order to cause the localized melting of the material constituting the strips at their interface. This fusion, which is followed by a holding time of the welding head after the vibration has stopped, ensures the welding of the four pairs of strips.
  • the installation also comprises step-by-step advance means comprising four clamps 88 with horizontal translation.
  • Each clamp is formed by an upper jaw 88A and a lower jaw 88B and are each capable of gripping a strip 14 downstream of the fixing station to advance the assembly by one step in the direction of the arrow F.
  • the movement of movement of the clamps 88 is limited by a fixed stop 90 close to the welding heads and by an adjustable stop 92 on the other side. This adjustable stop allows the pitch between two successive frames to be adjusted.
  • the clamps 88 are placed near the welding heads and their respective jaws are actuated to pinch the strips and hold them firmly in position once the welding operation is complete.
  • the clamps 88 open and are positioned next to the welding heads.
  • the sheet thus formed passes first around a deflection roller 94, then around another deflection roller 96 to wind around the drum 36, the latter being suitable for being driven in rotation via a transmission 98 and a motor 100.
  • the roller 96 is guided in vertical translation, two sensors (not shown) detecting the high and low positions of this roller. When the roller 96 is in the low position, the motor 100 for driving the drum 36 starts, which causes the web to be wound up until the roller 96 is in the high position.
  • the latter is driven by an alternative movement of translation on its axis in order to avoid the superposition of the strips.
  • FIG. 8 shows a set of reinforcements according to the invention, comprising rigid transverse reinforcements 112 which are not straight connected together by three flexible strands 14. This set can be packaged in the folded state in the form an accordion.
  • FIG. 9 shows another set of frames according to the invention, this set comprising non-straight transverse frames 212.
  • these frames are folded to form an outline closed generally rectangular, these frames being connected by three flexible elements 14.
  • this set of frames can be packaged, in the folded state, in the form of an accordion structure.
  • the set of reinforcements according to the invention finds a particular application in the case of prestressed concrete products, especially in the case of prestressed concrete plates which include prestressing steels arranged parallel to each other. It then suffices to unroll a sheet of reinforcements according to the invention so that the rigid transverse reinforcements are perpendicular to the direction of the prestressing steels.
  • this assembly can also be used, in general, as distribution frames for a traditional reinforced concrete structure.
  • the set of reinforcements of the invention can be used, in replacement of bars or welded mesh, for the reinforcements of a traditional reinforced concrete slab, poured on site or on formwork.
  • cap steels positive moment reinforcement
  • steels positioned in a compression table unidirectional force
  • the assembly of reinforcements of the invention can be used as transverse distribution reinforcements of a concrete compression table for floors, beams or interjoists, and as "caps" on support.
  • the invention is susceptible of numerous variants.
  • the bars forming the transverse reinforcements instead of being precut to the desired length, could be erected and cut by the installation from steel coils.

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  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Wire Processing (AREA)
  • Rod-Shaped Construction Members (AREA)
  • Manufacturing Of Tubular Articles Or Embedded Moulded Articles (AREA)
  • Panels For Use In Building Construction (AREA)
  • Lining Or Joining Of Plastics Or The Like (AREA)
  • Finishing Walls (AREA)
  • Joining Of Building Structures In Genera (AREA)
  • Reinforcement Elements For Buildings (AREA)
  • Forging (AREA)
  • Devices For Post-Treatments, Processing, Supply, Discharge, And Other Processes (AREA)
  • Press-Shaping Or Shaping Using Conveyers (AREA)

Claims (14)

  1. Bewehrungseinheit für Produkte aus Spannbeton, die eine Vielzahl von steifen Querbewehrungen (12, 112, 212) mit Abstand zwischeneinander enthält und wenigstes zwei biegsame Längselemente (14), die mit den Querbewehrungen verbunden sind, um sie auf Abstand zu halten, festgelegten Zwischenräumen entsprechend,
    dadurch gekennzeichnet,
    daß jedes biegsame Element (14) gebildet wird aus wenigstens einem Band (14A, 14B) aus Kunststoff, vor allem aus Polypropylen.
  2. Erfindungsgemäße Bewehrungseinheit nach Anspruch 1, dadurch gekennzeichnet, daß jedes biegsame Element (14) zwei Bänder (14A, 14B) enthält, die auf beiden Seiten einer jeden Bewehrung (12) miteinander punktverschweißt sind.
  3. Erfindungsgemäße Bewehrungseinheit nach Anspruch 2, dadurch gekennzeichnet, daß eines der Bänder (14B) kontinuierlich ist, während das andere Band (14A) kontinuierlich oder punktuell ist.
  4. Herstellungsverfahren einer Bewehrungseinheit nach einem der Ansprüche 1 bis 3, das aus folgenden Arbeitsgängen besteht :
    - Abwickeln von biegsamen Elementen (14) gleicher Länge, um sie parallel zueinander einer Befestigungseinrichtung (18) zuzuführen,
    - Einführen der Bewehrungen (12) nacheinander quer zu den biegsamen Elementen (14) auf der Höhe der Befestigungsvorrichtung (18),
    Befestigen einer Bewehrung (12) an den biegsamen Elementen (14),
    - Vorwärtsbewegen der biegsamen Elemente (14), welche die vorhergehend befestigte Bewehrung (12) mit sich führen um einen Teilungsschritt, und
    - Wiederholen der obigen Arbeitsgänge für die anderen Bewehrungen,
    dadurch gekennzeichnet, daß man jedes biegsame Element bildet aus wenigstens einem Band aus Kunststoff, vor allem aus Polypropylen.
  5. Verfahren nach Anspruch 4, dadurch gekennzeichnet, daß man jedes biegsame Element (14) aus zwei Kunststoffbändern bildet, nämlich einem oberen Band (14A), zugeführt von einer Abspulvorrichtung (28A), und einem unteren Band 14B, zugeführt von einer unteren Abspulvorrichtung (28B), und dadurch, daß man die beiden Bänder miteinander punktverschweißt (38, 40) zu beiden Seiten der zu befestigenden Bewehrung (12).
  6. Verfahren nach Anspruch 5, dadurch gekennzeichnet, daß man die beiden Bänder (14A, 14B) durch eine Ultraschallschweißung verschweißt.
  7. Anlage für die Herstellung einer Bewehrungseinheit nach einem der Ansprüche 1 bis 3, enthaltend :
    - eine Befestigungsvorrichtung (18),
    - Zuführmittel (28A, 28B), die gleiche Längen biegsamer Elemente (14) liefern, gebildet aus wenigstens einem Band (14A, 14B) aus Kunststoff, vor allem aus Polypropylen, und sie parallel zueinander der Befestigungsvorrichtung (18) zuführen,
    - eine Zuführvorrichtung (30) für Bewehrungen (12), die geeignet ist, die Bewehrungen (12) nacheinander quer den biegsamen Elementen (14) auf der Höhe der Befestigungsvorrichtung (18) zuzuführen, und
    - Vorwärtsbewegungsmittel (88), um die biegsamen Elemente (14), welche die vorhergehend befestigte Bewehrung (12) mit sich führen, um einen Teilungsschritt vorwärts zu bewegen,
    dadurch gekennzeichnet, daß die Befestigungsvorrichtung (18) ausgerüstet ist mit einem Befestigungskopf (24) in Verbindung mit jedem an den Bewehrungen (12) zu befestigenden biegsamen Element (14).
  8. Anlage nach Anspruch 7, dadurch gekennzeichnet, daß jeder Befestigungskopf (24) mit Schweißmitteln ausgerüstet ist, zum Beispiel Ultraschallschweißmitteln.
  9. Anlage nach Anspruch 7, dadurch gekennzeichnet, daß jedes biegsame Element gebildet wird aus zwei Kunststoffbändern (14A, 14B), und daß die Zuführmittel für jedes biegsame Element zwei Abspulvorrichtungen (28A, 28B) enthalten, die geeignet sind, zwei Bandrollen (26A bzw. 26B) aufzunehmen.
  10. Anlage nach Anspruch 9, dadurch gekennzeichnet, daß sie, verbunden mit jeder Abspulvorrichtung (28A, 28B) eine Bremse (68) enthält, die einen Hebel (70) aufweist, der mit einer Umlenkrolle (78) ausgerüstet ist, um die das Band (14A) herumläuft, so daß die Bremse gelöst ist, wenn auf das Band ein mechanischer Zug ausgeübt wird und blockiert, wenn auf der Zug aussetzt.
  11. Anlage nach Anspruch 10, dadurch gekennzeichnet, daß sie vier Abspulvorrichtungen (28A, 28B) enthält, was ermöglicht, vier biegsame Elemente (14) zu verbinden, wovon jedes gebildet wird durch das übereinanderlegen von zwei Bändern (14A, 14B).
  12. Anlage nach einem der Ansprüche 7 bis 11, dadurch gekennzeichnet, daß die Vorwärtsbewegungsmittel Horizontaltranslationszangen (88) sind, wovon jede geeignet ist, flußabwärts von der Befestigungsvorrichtung (18) ein biegsames Element (14) zu greifen und das Ganze um einen Teilungsschritt vorwärts zu bewegen.
  13. Anlage nach Anspruch 12, dadurch gekennzeichnet, daß jeder Zange (88) ein fester Anschlag (90) und einen verstellbarer Anschlag (92) zugeordnet ist, um den Teilungsschritt zwischen zwei aufeinanderfolgenen Bewehrungen (12) nach Belieben einstellen zu können.
  14. Anlage nach einem der Ansprüche 7 bis 13, in der die Querbewehrungen im allgemeinen geradlinig sind, dadurch gekennzeichnet, daß sie eine Aufnahmetrommel (36) enthält, die von einem Elektromotor (100) angetrieben wird.
EP90402183A 1989-08-01 1990-07-27 Bewehrungselemente für Stahlbeton sowie Verfahren und Vorrichtung für deren Herstellung Expired - Lifetime EP0416964B1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT90402183T ATE87057T1 (de) 1989-08-01 1990-07-27 Bewehrungselemente fuer stahlbeton sowie verfahren und vorrichtung fuer deren herstellung.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR8910369 1989-08-01
FR8910369A FR2650614B1 (fr) 1989-08-01 1989-08-01 Ensemble d'armatures pour produits en beton arme, procede et installation pour sa fabrication

Publications (3)

Publication Number Publication Date
EP0416964A2 EP0416964A2 (de) 1991-03-13
EP0416964A3 EP0416964A3 (en) 1991-03-20
EP0416964B1 true EP0416964B1 (de) 1993-03-17

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EP90402183A Expired - Lifetime EP0416964B1 (de) 1989-08-01 1990-07-27 Bewehrungselemente für Stahlbeton sowie Verfahren und Vorrichtung für deren Herstellung

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EP (1) EP0416964B1 (de)
AT (1) ATE87057T1 (de)
CA (1) CA2022481A1 (de)
DD (1) DD296731A5 (de)
DE (1) DE69001108T2 (de)
ES (1) ES2040083T3 (de)
FR (1) FR2650614B1 (de)
HU (1) HUT62364A (de)
RU (1) RU2021441C1 (de)

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DE4436610A1 (de) * 1994-04-13 1995-10-19 Haeussler Wilhelm Dipl Ing Dip Verfahren zur Fertigung von Bewehrungen für Stahlbeton-Flächentragwerke und Maschine zur Herstellung von Bewehrungsmatten
FR2811001B1 (fr) * 2000-06-29 2003-01-10 Simpa Ind Nappe de barres destinee a la realisation, par exemple, d'une dalle precontrainte de beton ou analogue, et machine permettant de realiser une telle nappe de barres
RU2198272C2 (ru) * 2000-09-21 2003-02-10 Кабанов Александр Иванович Арматурный каркас, способ его изготовления и устройство для формирования заготовки арматурного каркаса
CN100434635C (zh) * 2006-09-04 2008-11-19 中国京冶建设工程承包公司 一种嵌固型直粘结预应力筋
NO333023B1 (no) * 2010-03-03 2013-02-18 Reforcetech Ltd Armeringssystem og fremgangsmate for bygging av betongkonstruksjoner.
DE102013111064A1 (de) * 2013-10-07 2015-04-09 Häussler Innovation GmbH Bewehrungsstahlstabmatte, Verfahren zur ihrer Herstellung und Verfahren zu ihrer Verlegung

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DE1730830U (de) * 1954-09-06 1956-09-27 Kettenwerke Schlieper G M B H Armierungseinlage fuer betonbauteile.

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Publication number Publication date
EP0416964A2 (de) 1991-03-13
DD296731A5 (de) 1991-12-12
RU2021441C1 (ru) 1994-10-15
HU904692D0 (en) 1991-01-28
ES2040083T3 (es) 1993-10-01
FR2650614A1 (fr) 1991-02-08
HUT62364A (en) 1993-04-28
DE69001108D1 (de) 1993-04-22
CA2022481A1 (en) 1991-02-02
ATE87057T1 (de) 1993-04-15
DE69001108T2 (de) 1993-09-09
FR2650614B1 (fr) 1991-10-25
EP0416964A3 (en) 1991-03-20

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