EP2246499B1 - Reinforcement element - Google Patents

Reinforcement element Download PDF

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Publication number
EP2246499B1
EP2246499B1 EP10158968.7A EP10158968A EP2246499B1 EP 2246499 B1 EP2246499 B1 EP 2246499B1 EP 10158968 A EP10158968 A EP 10158968A EP 2246499 B1 EP2246499 B1 EP 2246499B1
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Prior art keywords
bars
elements
reinforcement
mat
additional
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EP10158968.7A
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German (de)
French (fr)
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EP2246499A3 (en
EP2246499A2 (en
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Christian Prilhofer
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Prilhofer Christian
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    • 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
    • E04C5/0627—Three-dimensional reinforcements composed of a prefabricated reinforcing mat combined with reinforcing elements protruding out of the plane of the mat
    • 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

Definitions

  • the invention relates to a reinforcing element.
  • Reinforcement elements of the type in question are components of reinforced concrete structures. They are used in particular in the production of precast concrete elements, double walls and floor slabs.
  • a spatial reinforcement element is for example from the DE 39 42 753 A1 known.
  • a planar reinforcing element, that is a reinforcing mat, is from the DE 100 48 104 A1 known.
  • Element ceilings and double walls can be produced in such a way that elements with different component geometries are individually produced on a formwork surface with steel, wood or other formwork and supplemented by various built-in parts, depending on requirements.
  • so-called pallets in circulation systems, tilting tables, webs or similar production surfaces serve as a scarf surface.
  • the required individual reinforcement components for the precast element usually consisting of a mat or single bars, which represent a surface reinforcement, as well as so-called lattice girders of different height, which provide for the spatial reinforcement component, must be placed before the concreting on the scarf surface.
  • the reinforcement is made with so-called spacers, which ensure the necessary concrete coverage of the reinforcement in the concrete component and placed on the scarf surface or attached to the reinforcement prior to introduction of the reinforcement, kept at a distance from the scarf surface.
  • the reinforcement components can basically be loose in the formwork or, if necessary, connected to one another.
  • a prefabricated reinforcement for reinforced concrete boards is known in which a top latticework of longitudinal and transverse bars is placed on a lower latticework of superimposed longitudinal and transverse bars.
  • the EP 0 854 248 A2 discloses a prefabricated panel for the construction of civil or industrial buildings.
  • the plate has an armature formed by two opposing metal nets.
  • the invention has for its object to provide a reinforcing element, which allows a flexible, inexpensive and simple production, and a corresponding apparatus for producing a reinforcing element and a corresponding method for producing a reinforcing element.
  • the reinforcing element according to the invention has a two-dimensional base element as well as intermediate elements for providing a three-dimensional structure.
  • the two-dimensional base element may be a reinforcing mat or consist of individual bars and corresponds to a surface reinforcement. It has superimposed longitudinal and transverse bars.
  • the intermediate elements are part of a spatial reinforcement component and correspond to so-called lattice girders.
  • the intermediate elements have additional bar elements which are connected to the two-dimensional base element, wherein they are arranged on the bars of the two-dimensional base element arranged below.
  • One or more rod elements are connected to regions of the intermediate elements facing away from the two-dimensional base element.
  • a key aspect of the invention is that a reinforcing element has been created, which is at the same time mat and lattice girders, wherein it can be made of individual bars and produced in only one machine.
  • the insertion of the reinforcement in several steps, for example, by inserting the spacers on the scarf surface, then inserting the mat and then take place inserting the lattice girder and possibly connecting mat and lattice girders.
  • Another possibility is to prefabricate and connect mat and lattice girders, insert the spacers on the scarf surface and then insert the composite of mat and lattice girders.
  • the surface reinforcement is usually made of bar steel, which is used in loose bars or individually manufactured as a reinforcing mat in a mat welding machine.
  • the surface reinforcement can alternatively be made up of standard mats.
  • Lattice girders are usually cut to the required length from purchased, fourteen-meter-long standard goods. The remaining end pieces are butt welded to each other to reduce the waste, in order to obtain a required length from the respective component geometry as specified. Even with lattice girder machines capable of producing lattice girders "just-in-time", which would eliminate the need to cut to length purchased lattice girders, the separate production of bars or reinforcing mats on the one hand and lattice girders on the other hand remains unavoidable.
  • the number of operations is reduced.
  • the separate insertion and subsequent joining of the two reinforcement components, that is, the surface reinforcement and the spatial reinforcement component can be done by only one machine, since the reinforcing element according to the invention at the same time mat and lattice girder, which can be made from individual bars by means of only a single machine.
  • the reinforcing element according to the invention is therefore one that is planar reinforcement (“mat”) and spatial reinforcement component (“lattice girder”) in one piece. It takes over both the tasks of surface reinforcement and spatial reinforcement component and can be placed on the scarf surface in just one step.
  • the additional bar elements on those bars of the two-dimensional base element are arranged, which form the bottom of the two-dimensional base element.
  • the longitudinal bars are arranged on the transverse bars
  • the additional bar elements are also arranged on the transverse bars.
  • height is saved, which is particularly advantageous if this composite is enclosed as a so-called concrete board in concrete, so that the device can be used as a lost formwork.
  • These concrete boards have a typical thickness of 5 to 7 cm. With a reduction in the height of 1 cm transport weight of about 25 kg / m 2 is saved.
  • the auxiliary bar members are bars that were initially secured as straight bars to the two-dimensional base member in its span direction, severed after attachment to yield individual bars attached to the two-dimensional base member, and the individual bars or bar ends thereafter have been bent out of the plane of the two-dimensional base element.
  • auxiliary bar members may be bars that were first attached as straight bars to the two-dimensional base member in its span direction, and the individual bars or bar ends are then bent up on the plane of the two-dimensional base member.
  • the bar elements are connected to the end points of the bars.
  • the two-dimensional intermediate element, the additional bar elements and the bar elements are preferably made of the same material, in particular of steel suitable therefor. They can be joined together by welding, for example by resistance welding.
  • the diagonal in distance and diameter may be changed according to their stress. For example, in the middle of the distance may be smaller and the diameter larger than in the area of the supports, resulting in better utilization and a significant material savings.
  • the position and length of the welded in a mat carrier can be freely changed and thus adapted to the geometry specifications from a CAD system.
  • the necessary data for the production of the reinforcement element such as geometry data, reinforcement diameter, type of steel and the like are provided to the device for the production of the reinforcement element via a network connection, via data carriers or other interfaces. These data can come from a CAD system. Alternatively, the data can be transferred in the form of individual surface reinforcements and spatial reinforcements. In this case, the plant software of the device for producing the reinforcement element from the individual components must generate the data for the spatial reinforcement element.
  • the wires which are unwound from a wire spool are first straightened and cut to the desired length.
  • the straightened and cut wires can then be buffered in different magazines, depending on whether they are longitudinal or transverse bars, and fed to the welding system when needed. Those additional bars which later form a lattice girder-like element are also created and treated.
  • the welding system is ready, add a new reinforcing element welding, the rods are fed to the welding system.
  • the straightening and cutting system can accommodate several wires in parallel.
  • the unwinding devices can be equipped with different diameters. As a result, rods of different diameters can be produced as required, without the plant having to be retrofitted.
  • the longitudinal and transverse bars are welded or otherwise connected in the welding system, for example by resistance welding.
  • the cross points are connected to each other, which are necessary for the stability and portability of the mat.
  • time and energy costs are saved in the production.
  • additional bars are suitably secured to the mat, which serve as intermediate elements for providing a three-dimensional structure, that is, for example, as diagonals of a grid-like spatial reinforcement .
  • the rods are thus a special embodiment of additional rod elements, which are a special embodiment of intermediate elements.
  • Such rods can also be used as bottom straps.
  • These intermediate elements have additional rod elements, which are connected by welding or another suitable type of connection with the resulting in the manufacturing process or already partially manufactured or already finished reinforcement mat. Even with these additional bars only those crossing points are connected to the reinforcing mat, which are necessary for the fixation, stability and geometry of the lattice girder-like elements on the mat.
  • the spatial reinforcement components or lattice girders can be produced in different ways.
  • the additional additional bar elements introduced into the reinforcing mat are subdivided into individual pieces in further steps in order to obtain correspondingly isolated additional bar elements in the form of bars (lattice girders).
  • the cuts are made in individual length, depending on the height of the lattice girder-like element to be produced, but always in the same distance on both sides to the adjacent connection point of the rod member.
  • the respective bars or bar ends are bent out of the mat upwardly into the vertical or oblique position to the two-dimensional base element and thus become the diagonal bars, that is, lattice girders.
  • the additional pole elements may also be cut to their respective lengths prior to insertion into the mat, that is prior to attachment to the two-dimensional base element. After the respective placement on the reinforcement mat they are then bent up.
  • the upwardly projecting bent ends of the additional rod elements or upper regions of the additional rod elements are connected to the rod element or the rod elements.
  • These rod elements also come from the straightening device belonging to the device according to the invention and serve as upper flange for the lattice girder-like elements. They are welded to them or connected by another suitable method.
  • the reinforcing element according to the invention has the advantage that the lattice girders are already connected to the reinforcement mat. This has the particular advantage that all subsequent automatic processes are extremely simplified and corresponding costs for personnel and machine technology can be saved.
  • FIGS. 1 to 4 show an embodiment of a reinforcing element according to the invention.
  • This has longitudinal bars 101 and cross bars 102, which are joined together to form a two-dimensional base element of a reinforcing element in the form of a reinforcing mat.
  • four longitudinal bars 101 are grouped next to each other.
  • rods 21 are attached as additional elements, which provide a three-dimensional structure as intermediate elements.
  • bar elements 40 are attached.
  • the rod elements 40 form a so-called upper flange of the reinforcing element and the longitudinal bars 101 and transverse bars 102 are part of a so-called lower chord of the reinforcing element.
  • a first embodiment of rods 21 and their training in the course of a method for producing a reinforcing element is based on the FIGS. 5 to 9 clarified.
  • Fig. 5A shows in a plan view two longitudinal bars 101, which are connected by cross bars 102. On the longitudinal bars 101 two continuous rods 21 are attached.
  • Fig. 5B shows a corresponding sectional view and Fig. 5C an enlargement of the sectional view according to Fig. 5B ,
  • the continuous rods 21 are or are separated centrally between two transverse rods 102, so that a plurality of isolated rods 21 results, which are each connected in the region of a cross bar 102 with the corresponding longitudinal bar 101. It is understood that other interfaces are possible. In particular, for example, in the middle between two transverse bars a piece be cut out so that the isolated rods 21 have shortened lengths. The ends of the rods 21 are bent out of the plane of the two-dimensional base member, as in FIGS Figures 6A and 6B shown. A corresponding top view of this state is in Fig. 7 shown.
  • Fig. 8A shows how a rod element 40 is connected to the ends of the rods 21 facing away from the two-dimensional base element.
  • a corresponding sectional view is in Fig. 8B shown.
  • Fig. 9 shows a corresponding plan view of the arrangement according to 8A and 8B that is the three-dimensional reinforcing element.
  • FIGS. 10A to 14 show a further embodiment of the rods 21.
  • 101 two continuous rods 21 are mounted on each of the two longitudinal bars.
  • a separation of the rods 21 is not carried out centrally between two transverse bars 102, but in the height of each second transverse bar 102, wherein the separation points of the arranged on the inside of the longitudinal bar 101 bar 21 with respect to the separation points of the arranged on the outside of the longitudinal bar 101 rod 21 in each case a transverse bar 102 are offset.
  • bending the rod ends thus results alternately an inner bow 21a and an outboard bow 21b.
  • the ends of the sheets 21a and 21b are also connected to a rod member 40.
  • a reinforcing element for a reinforced concrete structure comprises a two-dimensional base element and intermediate elements for providing a three-dimensional structure, wherein the intermediate elements have additional bar elements which are connected to the two-dimensional base element, and wherein a plurality of bar elements are connected to regions of the intermediate elements which are remote from the two-dimensional base element.
  • the additional elements are designed as straightened individual rod elements.

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  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Mechanical Engineering (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Reinforcement Elements For Buildings (AREA)

Description

Die Erfindung betrifft ein Bewehrungselement.The invention relates to a reinforcing element.

Bewehrungselemente der in Rede stehenden Art sind Bestandteile von Stahlbetonkonstruktionen. Sie werden insbesondere bei der Fertigung von Betonfertigteilelementen, bei Doppelwänden und Elementdecken verwendet.Reinforcement elements of the type in question are components of reinforced concrete structures. They are used in particular in the production of precast concrete elements, double walls and floor slabs.

Hierzu finden flächenmäßige Bewehrungen und räumliche Bewehrungskomponenten Verwendung. Ein räumliches Bewehrungselement ist beispielsweise aus der DE 39 42 753 A1 bekannt. Ein flächiges Bewehrungselement, das heißt eine Bewehrungsmatte, ist aus der DE 100 48 104 A1 bekannt.For this purpose, areal reinforcement and spatial reinforcement components are used. A spatial reinforcement element is for example from the DE 39 42 753 A1 known. A planar reinforcing element, that is a reinforcing mat, is from the DE 100 48 104 A1 known.

Elementdecken und Doppelwände können in der Weise hergestellt werden, dass Elemente mit unterschiedlichen Bauteilgeometrien auf einer Schalfläche mit Stahl-, Holz- oder anderen Schalungen individuell erzeugt und durch diverse Einbauteile, je nach Anforderung, ergänzt werden. Als Schalfläche dienen dazu beispielsweise sogenannte Paletten in Umlaufanlagen, Kipptische, Bahnen oder ähnliche Produktionsflächen.Element ceilings and double walls can be produced in such a way that elements with different component geometries are individually produced on a formwork surface with steel, wood or other formwork and supplemented by various built-in parts, depending on requirements. For example, so-called pallets in circulation systems, tilting tables, webs or similar production surfaces serve as a scarf surface.

Die erforderlichen einzelnen Bewehrungskomponenten für das Fertigteilelement, üblicherweise bestehend aus einer Matte oder Einzelstäben, welche eine flächenmäßige Bewehrung darstellen, sowie sogenannte Gitterträger unterschiedlicher Bauhöhe, die für die räumliche Bewehrungskomponente sorgen, müssen vor dem Betoniervorgang auf der Schalfläche eingelegt werden. Die Bewehrung wird mit sogenannten Abstandhaltern, welche die notwendige Betonüberdeckung der Bewehrung im Beton-Bauteil sicherstellen und vor Einbringung der Bewehrung auf die Schalfläche gelegt oder an der Bewehrung befestigt wurden, in einem Abstand von der Schalfläche gehalten. Die Bewehrungskomponenten können grundsätzlich lose in der Schalung liegen oder bei Bedarf miteinander verbunden werden.The required individual reinforcement components for the precast element, usually consisting of a mat or single bars, which represent a surface reinforcement, as well as so-called lattice girders of different height, which provide for the spatial reinforcement component, must be placed before the concreting on the scarf surface. The reinforcement is made with so-called spacers, which ensure the necessary concrete coverage of the reinforcement in the concrete component and placed on the scarf surface or attached to the reinforcement prior to introduction of the reinforcement, kept at a distance from the scarf surface. The reinforcement components can basically be loose in the formwork or, if necessary, connected to one another.

Aus der DE 1 804 703 A1 ist eine vorgefertigte Bewehrung für Stahlbetonbretter bekannt, bei der auf einem unteren Gitterwerk aus übereinander angeordneten Längs- und Querstäben ein oberes Gitterwerk aus Längs- und Querstäben aufgesetzt ist.From the DE 1 804 703 A1 a prefabricated reinforcement for reinforced concrete boards is known in which a top latticework of longitudinal and transverse bars is placed on a lower latticework of superimposed longitudinal and transverse bars.

Aus der DE 20 24 819 A1 ist eine Baustahlmatte aus miteinander verbundenen Längs- und Querstäben bekannt, die zusätzliche Stabstücke enthält, die etwa in der Mattenebene verlaufen.From the DE 20 24 819 A1 is a structural steel mat made of interconnected longitudinal and transverse bars, which contains additional pole pieces, which extend approximately in the plane of the mat.

Die EP 0 854 248 A2 offenbart eine vorgefertigte Platte für den Bau von zivilen oder industriellen Gebäuden. Die Platte weist einen Anker auf, gebildet durch zwei gegenüberliegende Metallnetze.The EP 0 854 248 A2 discloses a prefabricated panel for the construction of civil or industrial buildings. The plate has an armature formed by two opposing metal nets.

Der Erfindung liegt die Aufgabe zugrunde, ein Bewehrungselement bereitzustellen, das eine flexibele, kostengünstige und einfache Herstellung ermöglicht, sowie eine entsprechende Vorrichtung zur Herstellung eines Bewehrungselements und ein entsprechendes Verfahren zur Herstellung eines Bewehrungselements.The invention has for its object to provide a reinforcing element, which allows a flexible, inexpensive and simple production, and a corresponding apparatus for producing a reinforcing element and a corresponding method for producing a reinforcing element.

Die Lösung dieser Aufgabe ist im Patentanspruch 1 angegeben. Vorteilhafte Ausführungsformen der Erfindung sind in den Patentansprüchen 2 bis 4 definiert.The solution of this problem is specified in claim 1. Advantageous embodiments of the invention are defined in claims 2 to 4.

Das erfindungsgemäße Bewehrungselement weist ein zweidimensionales Basiselement auf sowie Zwischenelemente zur Bereitstellung einer dreidimensionalen Struktur. Das zweidimensionale Basiselement kann eine Bewehrungsmatte sein oder aus Einzelstäben bestehen und entspricht einer Flächenbewehrung. Es weist übereinander angeordnete Längs-und Querstäbe auf. Die Zwischenelemente sind Bestandteil einer räumlichen Bewehrungskomponente und entsprechen sogenannten Gitterträgern.The reinforcing element according to the invention has a two-dimensional base element as well as intermediate elements for providing a three-dimensional structure. The two-dimensional base element may be a reinforcing mat or consist of individual bars and corresponds to a surface reinforcement. It has superimposed longitudinal and transverse bars. The intermediate elements are part of a spatial reinforcement component and correspond to so-called lattice girders.

Erfindungsgemäß weisen die Zwischenelemente Zusatzstabelemente auf, die mit dem zweidimensionalen Basiselement verbunden sind, wobei sie auf den unten angeordneten Stäben des zweidimensionalen Basiselements angeordnet sind. Ein oder mehrere Stabelemente sind mit von dem zweidimensionalen Basiselement abgewandten Bereichen der Zwischenelemente verbunden.According to the invention, the intermediate elements have additional bar elements which are connected to the two-dimensional base element, wherein they are arranged on the bars of the two-dimensional base element arranged below. One or more rod elements are connected to regions of the intermediate elements facing away from the two-dimensional base element.

Ein Kernaspekt der Erfindung besteht darin, dass ein Bewehrungselement geschaffen wurde, welches zugleich Matte und Gitterträger ist, wobei es aus einzelnen Stäben gefertigt und in nur einer Maschine produziert werden kann.A key aspect of the invention is that a reinforcing element has been created, which is at the same time mat and lattice girders, wherein it can be made of individual bars and produced in only one machine.

Grundsätzlich erfolgt das Einlegen der Bewehrung in mehreren Arbeitsschritten, beispielsweise durch Einlegen der Abstandhalter auf der Schalfläche, anschließendes Einlegen der Matte und daraufhin erfolgendes Einlegen der Gitterträger und eventuellem Verbinden von Matte und Gitterträgern. Eine weitere Möglichkeit besteht darin, Matte und Gitterträger vorzufertigen und miteinander zu verbinden, die Abstandhalter auf der Schalfläche einzulegen und anschließend den Verbund aus Matte und Gitterträgern einzulegen. Es besteht zudem die Möglichkeit, Einzelstäbe mit Abstandhaltern zu bestücken, die Einzelstäbe mit den Abstandhaltern als Längs- und/oder Querbewehrung einzulegen, beispielsweise in rechtem Winkel zueinander, daraufhin die Gitterträger einzubringen und die Einzelstäbe mit den Gitterträgern gegebenenfalls zu verbinden.Basically, the insertion of the reinforcement in several steps, for example, by inserting the spacers on the scarf surface, then inserting the mat and then take place inserting the lattice girder and possibly connecting mat and lattice girders. Another possibility is to prefabricate and connect mat and lattice girders, insert the spacers on the scarf surface and then insert the composite of mat and lattice girders. It is also possible to equip individual rods with spacers, insert the individual rods with the spacers as longitudinal and / or transverse reinforcement, for example, at right angles to each other, then introduce the lattice girder and optionally connect the individual bars with the lattice girders.

Die Flächenbewehrung besteht in der Regel aus Stabstahl, welcher in losen Stäben verwendet oder als Bewehrungsmatte in einer Mattenschweißanlage individuell gefertigt wird. Die Flächenbewehrung kann alternativ hierzu auch aus Standardmatten konfektioniert werden. Gitterträger werden in der Regel aus zugekaufter, vierzehn Meter langer Standardware auf die notwendige Länge zugeschnitten. Die verbleibenden Endstücke werden zur Reduktion des Verschnittes zueinander stumpf verschweißt, um gemäß Vorgabe aus der jeweiligen Bauteilgeometrie eine erforderliche Länge zu erhalten. Selbst mit Gitterträgermaschinen, die in der Lage sind, Gitterträger "just-in-time" herzustellen, wodurch das Ablängen von zugekauften Gitterträgern überflüssig wäre, bleibt grundsätzlich das getrennte Erzeugen von Stäben beziehungsweise Bewehrungsmatten einerseits und Gitterträgern andererseits unvermeidbar.The surface reinforcement is usually made of bar steel, which is used in loose bars or individually manufactured as a reinforcing mat in a mat welding machine. The surface reinforcement can alternatively be made up of standard mats. Lattice girders are usually cut to the required length from purchased, fourteen-meter-long standard goods. The remaining end pieces are butt welded to each other to reduce the waste, in order to obtain a required length from the respective component geometry as specified. Even with lattice girder machines capable of producing lattice girders "just-in-time", which would eliminate the need to cut to length purchased lattice girders, the separate production of bars or reinforcing mats on the one hand and lattice girders on the other hand remains unavoidable.

Gemäß der vorliegenden Erfindung wird demgegenüber die Anzahl der Arbeitsschritte reduziert. Das separate Einlegen und anschließende Verbinden der zwei Bewehrungskomponenten, das heißt der Flächenbewehrung und der räumlichen Bewehrungskomponente, kann durch lediglich eine Maschine erfolgen, da das erfindungsgemäße Bewehrungselement zugleich Matte und Gitterträger ist, das aus einzelnen Stäben mittels lediglich einer einzigen Maschine gefertigt werden kann.In contrast, according to the present invention, the number of operations is reduced. The separate insertion and subsequent joining of the two reinforcement components, that is, the surface reinforcement and the spatial reinforcement component can be done by only one machine, since the reinforcing element according to the invention at the same time mat and lattice girder, which can be made from individual bars by means of only a single machine.

Das erfindungsgemäße Bewehrungselement ist daher ein solches, das Flächenbewehrung ("Matte") und räumliche Bewehrungskomponente ("Gitterträger") in einem Stück ist. Es übernimmt sowohl die Aufgaben von Flächenbewehrung als auch räumlicher Bewehrungskomponente und kann in nur einem Arbeitsschritt auf die Schalfläche eingelegt werden.The reinforcing element according to the invention is therefore one that is planar reinforcement ("mat") and spatial reinforcement component ("lattice girder") in one piece. It takes over both the tasks of surface reinforcement and spatial reinforcement component and can be placed on the scarf surface in just one step.

Ein weiterer substantieller Vorteil gegenüber dem Stand der Technik besteht darin, dass die Zusatzstabelemente auf denjenigen Stäben des zweidimensionalen Basiselements angeordnet sind, die die Unterseite des zweidimensionalen Basiselements bilden. Wenn also, wie gemäß der Erfindung, die Längsstäbe auf den Querstäben angeordnet sind, dann sind die Zusatzstabelemente ebenfalls auf den Querstäben angeordnet. Hierdurch wird Bauhöhe eingespart, was sich besonders vorteilhaft auswirkt, wenn dieser Verbund als sogenanntes Betonbrett in Beton eingefasst wird, so dass das Bauelement als verlorene Schalung verwendet werden kann. Diese Betonbretter haben eine typische Dicke von 5 bis 7 cm. Bei einer Reduzierung der Bauhöhe von 1 cm wird Transportgewicht von etwa 25 kg/m2 eingespart.Another substantial advantage over the prior art is that the additional bar elements on those bars of the two-dimensional base element are arranged, which form the bottom of the two-dimensional base element. Thus, if, as in the invention, the longitudinal bars are arranged on the transverse bars, then the additional bar elements are also arranged on the transverse bars. As a result, height is saved, which is particularly advantageous if this composite is enclosed as a so-called concrete board in concrete, so that the device can be used as a lost formwork. These concrete boards have a typical thickness of 5 to 7 cm. With a reduction in the height of 1 cm transport weight of about 25 kg / m 2 is saved.

In einer bevorzugten Ausführungsform sind die Zusatzstabelemente Stäbe, die zunächst als gerade Langstäbe an dem zweidimensionalen Basiselement in dessen Erstreckungsrichtung befestigt wurden, nach dem Befestigen durchtrennt wurden, so dass sich einzelne, an dem zweidimensionalen Basiselement befestigte Stäbe ergaben, und die einzelnen Stäbe oder Stabenden anschließend aus der Ebene des zweidimensionalen Basiselements aufgebogen wurden.In a preferred embodiment, the auxiliary bar members are bars that were initially secured as straight bars to the two-dimensional base member in its span direction, severed after attachment to yield individual bars attached to the two-dimensional base member, and the individual bars or bar ends thereafter have been bent out of the plane of the two-dimensional base element.

Alternativ können die Zusatzstabelemente Stäbe sein, die zunächst als gerade Stäbe an dem zweidimensionalen Basiselement in dessen Erstreckungsrichtung befestigt wurden, und die einzelnen Stäbe oder Stabenden werden anschließend auf der Ebene des zweidimensionalen Basiselements aufgebogen. Mit den Endpunkten der Stäbe sind die Stabelemente verbunden.Alternatively, the auxiliary bar members may be bars that were first attached as straight bars to the two-dimensional base member in its span direction, and the individual bars or bar ends are then bent up on the plane of the two-dimensional base member. The bar elements are connected to the end points of the bars.

Vorzugsweise sind das zweidimensionale Zwischenelement, die Zusatzstabelemente und die Stabelemente aus dem gleichen Material, insbesondere aus hierfür geeignetem Stahl. Sie können durch Schweißen miteinander verbunden sein, beispielsweise durch Widerstandsschweißen.The two-dimensional intermediate element, the additional bar elements and the bar elements are preferably made of the same material, in particular of steel suitable therefor. They can be joined together by welding, for example by resistance welding.

In bestimmten Fällen können allerdings auch unterschiedliche Materialien verwandt werden. Beispielsweise kann bei Erzeugung einer Doppelwand mit innenliegender Isolierung eine Diagonale aus Edelstahl verwendet werden.In certain cases, however, different materials can be used. For example, at Producing a double wall with internal insulation a diagonal stainless steel can be used.

Zudem besteht bei dem Herstellungsverfahren die Möglichkeit, die Diagonalen in Abstand und Durchmesser gemäß deren Beanspruchung zu verändern. Beispielsweise können in der Mitte der Abstand geringer und der Durchmesser größer sein als im Bereich der Auflager, was zu einer besseren Ausnutzung sowie einer erheblichen Materialeinsparung führt. Zudem können die Lage und die Länge des in einer Matte eingeschweißten Trägers frei verändert und somit den Geometrievorgaben aus einem CAD-System angepasst werden.In addition, in the manufacturing process, it is possible to change the diagonal in distance and diameter according to their stress. For example, in the middle of the distance may be smaller and the diameter larger than in the area of the supports, resulting in better utilization and a significant material savings. In addition, the position and length of the welded in a mat carrier can be freely changed and thus adapted to the geometry specifications from a CAD system.

Die notwendigen Daten für die Produktion des Bewehrungselements, beispielsweise Geometriedaten, Bewehrungsdurchmesser, Stahlart und dergleichen werden der Vorrichtung zur Herstellung des Bewehrungselements über eine Netzwerkverbindung, über Datenträger oder anderweitige Schnittstellen zur Verfügung gestellt. Diese Daten können aus einem CAD-System kommen. Alternativ können die Daten in Form von einzelnen Flächenbewehrungen und räumlichen Bewehrungen übergeben werden. In diesem Fall muss die Anlagensoftware der Vorrichtung zur Herstellung des Bewehrungselements aus den einzelnen Komponenten die Daten für das räumliche Bewehrungselement generieren.The necessary data for the production of the reinforcement element, such as geometry data, reinforcement diameter, type of steel and the like are provided to the device for the production of the reinforcement element via a network connection, via data carriers or other interfaces. These data can come from a CAD system. Alternatively, the data can be transferred in the form of individual surface reinforcements and spatial reinforcements. In this case, the plant software of the device for producing the reinforcement element from the individual components must generate the data for the spatial reinforcement element.

In einer oder mehreren Richt- und Schneidanlagen werden zunächst die Drähte, welche von einer Drahtspule abgespult werden, gerade gerichtet und auf die gewünschte Länge abgeschnitten. Die gerichteten und geschnittenen Drähte können dann, abhängig davon, ob es Längs- oder Querstäbe sind, in unterschiedlichen Magazinen zwischengepuffert und bei Bedarf der Schweißanlage zugeführt werden. Diejenigen zusätzlichen Stäbe, welche später ein gitterträgerähnliches Element bilden, werden genauso erzeugt und behandelt. Wenn die Schweißanlage bereit ist, ein neues Bewehrungselement zu schweißen, werden die Stäbe der Schweißanlage zugeführt. Die Richt- und Schneidanlage kann mehrere Drähte parallel aufnehmen. Die Abspuleinrichtungen können mit unterschiedlichen Durchmessern bestückt sein. So können Stäbe unterschiedlicher Durchmesser je nach Anforderung hergestellt werden, ohne dass die Anlage umgerüstet werden muss.In one or more straightening and cutting equipment, the wires which are unwound from a wire spool are first straightened and cut to the desired length. The straightened and cut wires can then be buffered in different magazines, depending on whether they are longitudinal or transverse bars, and fed to the welding system when needed. Those additional bars which later form a lattice girder-like element are also created and treated. When the welding system is ready, add a new reinforcing element welding, the rods are fed to the welding system. The straightening and cutting system can accommodate several wires in parallel. The unwinding devices can be equipped with different diameters. As a result, rods of different diameters can be produced as required, without the plant having to be retrofitted.

Zur Herstellung der zweidimensionalen Bewehrungsmatte aus den wie zuvor erläutert hergestellten Bewehrungsstäben werden die Längs- und Querstäbe in der Schweißanlage, beispielsweise durch Widerstandsschweißung, verschweißt oder anderweitig verbunden. Bei diesem Vorgang werden nur solche Kreuzpunkte miteinander verbunden, die für die Stabilität und Transportierbarkeit der Matte notwendig sind. Hierdurch werden bei der Herstellung Zeit und Energiekosten gespart.To produce the two-dimensional reinforcing mat from the reinforcing bars produced as explained above, the longitudinal and transverse bars are welded or otherwise connected in the welding system, for example by resistance welding. In this process, only those cross points are connected to each other, which are necessary for the stability and portability of the mat. As a result, time and energy costs are saved in the production.

Gemeinsam mit den Bewehrungsstäben, welche die Flächenbewehrung bilden, das heißt das zweidimensionale Basiselement, werden zusätzliche Stäbe, Zusatzstabelemente genannt, an der Matte in geeigneter Weise befestigt, welche als Zwischenelemente zur Bereitstellung einer dreidimensionalen Struktur dienen, das heißt beispielsweise als Diagonalen einer gitterähnlichen räumlichen Bewehrung. Die Stäbe sind somit eine spezielle Ausführungsform von Zusatzstabelementen, die eine spezielle Ausführungsform von Zwischenelementen sind. Derartige Stäbe können zudem als Untergurte verwendet werden. Diese Zwischenelemente weisen Zusatzstabelemente auf, die durch Schweißen oder eine andere geeignete Verbindungsart mit der im Herstellungsprozess entstehenden oder bereits teilweise gefertigten oder bereits fertig gestellten Bewehrungsmatte verbunden werden. Auch bei diesen Zusatzstabelementen werden nur solche Kreuzungspunkte mit der Bewehrungsmatte verbunden, welche für die Fixierung, Stabilität und Geometrie der gitterträgerähnlichen Elemente auf der Matte notwendig sind.Together with the reinforcing bars which form the surface reinforcement, that is the two-dimensional base element, additional bars, called additional bars, are suitably secured to the mat, which serve as intermediate elements for providing a three-dimensional structure, that is, for example, as diagonals of a grid-like spatial reinforcement , The rods are thus a special embodiment of additional rod elements, which are a special embodiment of intermediate elements. Such rods can also be used as bottom straps. These intermediate elements have additional rod elements, which are connected by welding or another suitable type of connection with the resulting in the manufacturing process or already partially manufactured or already finished reinforcement mat. Even with these additional bars only those crossing points are connected to the reinforcing mat, which are necessary for the fixation, stability and geometry of the lattice girder-like elements on the mat.

Je nach Ausführungsform können die räumlichen Bewehrungskomponenten beziehungsweise Gitterträger auf unterschiedliche Weise hergestellt werden. Die zusätzlich in die Bewehrungsmatte eingebrachten Zusatzstabelemente werden in weiteren Schritten in Einzelstücke unterteilt, um entsprechend vereinzelte Zusatzstabelemente in Form von Stäben (Gitterträgern) zu erhalten. Die Schnitte erfolgen in individueller Länge, je nach Höhe des zu erzeugenden gitterträgerähnlichen Elements, jedoch immer in beidseitig gleichem Abstand zu dem angrenzenden Verbindungspunkt des Stabelements. Die jeweiligen Stäbe oder Stabenden werden aus der Matte heraus nach oben in die vertikale oder in eine schräge Stellung zu dem zweidimensionalen Basiselement gebogen und werden damit zu den Diagonalen beziehungsweise Stäben, das heißt zu Gitterträgern.Depending on the embodiment, the spatial reinforcement components or lattice girders can be produced in different ways. The additional additional bar elements introduced into the reinforcing mat are subdivided into individual pieces in further steps in order to obtain correspondingly isolated additional bar elements in the form of bars (lattice girders). The cuts are made in individual length, depending on the height of the lattice girder-like element to be produced, but always in the same distance on both sides to the adjacent connection point of the rod member. The respective bars or bar ends are bent out of the mat upwardly into the vertical or oblique position to the two-dimensional base element and thus become the diagonal bars, that is, lattice girders.

Alternativ können die Zusatzstabelemente auch vor dem Einbringen in die Matte, das heißt vor der Anbringung an das zweidimensionale Basiselement, auf ihre jeweiligen Längen zugeschnitten werden. Nach der jeweiligen Platzierung auf der Bewehrungsmatte werden sie alsdann aufgebogen.Alternatively, the additional pole elements may also be cut to their respective lengths prior to insertion into the mat, that is prior to attachment to the two-dimensional base element. After the respective placement on the reinforcement mat they are then bent up.

Die nach oben auskragenden aufgebogenen Enden der Zusatzstabelemente beziehungsweise obere Bereiche der Zusatzstabelemente sind mit dem Stabelement beziehungsweise den Stabelementen verbunden. Diese Stabelemente kommen ebenfalls aus der zur erfindungsgemäßen Vorrichtung gehörenden Richtanlage und dienen als Obergurt für die gitterträgerähnlichen Elemente. Sie werden mit diesen verschweißt oder durch ein anderes geeignetes Verfahren verbunden.The upwardly projecting bent ends of the additional rod elements or upper regions of the additional rod elements are connected to the rod element or the rod elements. These rod elements also come from the straightening device belonging to the device according to the invention and serve as upper flange for the lattice girder-like elements. They are welded to them or connected by another suitable method.

Es besteht zudem die Möglichkeit, die Geometrie des erfindungsgemäßen Bewehrungselements durch weitere Bearbeitungsschritte wie Schneiden, Schleifen oder andere geeignete Verfahren den jeweiligen Gegebenheiten anzupassen. Das erfindungsgemäße Bewehrungselement hat den Vorteil, dass die Gitterträger bereits mit der Bewehrungsmatte verbunden sind. Dies hat insbesondere den Vorteil, dass alle nachfolgenden automatischen Prozesse extrem vereinfacht sind und entsprechende Kosten für Personal und Maschinentechnik eingespart werden können.There is also the possibility of adapting the geometry of the reinforcing element according to the invention by further processing steps such as cutting, grinding or other suitable method the respective circumstances. The reinforcing element according to the invention has the advantage that the lattice girders are already connected to the reinforcement mat. This has the particular advantage that all subsequent automatic processes are extremely simplified and corresponding costs for personnel and machine technology can be saved.

Für Doppelwände genügt es, wenn die besagten gitterträgerähnlichen Elemente nur einachsig ausgeführt werden, da die Beanspruchung auf dem Träger nur beim Transport und als Zugbelastung beim Ausbetonieren auftritt.For double walls, it is sufficient if the said lattice girder-like elements are executed only uniaxial, since the stress on the carrier occurs only during transport and as a tensile load when concreting.

Die Erfindung wird im Folgenden anhand eines bevorzugten Ausführungsbeispiels in Verbindung mit den Zeichnungen erläutert. Die Darstellung in den Figuren ist zum Zwecke der besseren Übersicht sowie zur Darstellung von entsprechenden Einzelheiten jeweils vergrößert oder verkleinert sowie schematisch ausgeführt, so dass insgesamt kein einheitlicher Maßstab eingehalten ist.The invention will be explained below with reference to a preferred embodiment in conjunction with the drawings. The illustration in the figures is for the purpose of better clarity and to display corresponding details in each case enlarged or reduced and executed schematically, so that overall no uniform scale is met.

In der Zeichnung zeigen:

  • Fig. 1 eine perspektivische Darstellung einer Ausführungsform eines erfindungsgemäßen Bewehrungselements,
  • Fig. 2 eine Draufsicht auf die Ausführungsform gemäß Fig. 1,
  • Fig. 3 eine Seitenansicht der Ausführungsform gemäß Fig. 1 in Richtung des Pfeils A in Fig. 1,
  • Fig. 4 eine Seitenansicht der Ausführungsform gemäß Fig. 1 in Richtung des Pfeils B in Fig. 1,
die Figuren 5A bis 9 Stadien der Herstellung eines Teils einer Ausführungsform eines Bewehrungselements in unterschiedlichen Ansichten und
die Figuren 10A bis 14 Stadien der Herstellung eines Teils einer anderen Ausführungsform eines Bewehrungselements in unterschiedlichen Ansichten.In the drawing show:
  • Fig. 1 a perspective view of an embodiment of a reinforcing element according to the invention,
  • Fig. 2 a plan view of the embodiment according to Fig. 1 .
  • Fig. 3 a side view of the embodiment according to Fig. 1 in the direction of the arrow A in Fig. 1 .
  • Fig. 4 a side view of the embodiment according to Fig. 1 in the direction of arrow B in Fig. 1 .
the FIGS. 5A to 9 Stages of making a part of an embodiment of a reinforcing element in different views and
the FIGS. 10A to 14 Stages of making part of another embodiment of a reinforcing element in different views.

Die Figuren 1 bis 4 zeigen eine Ausführungsform eines erfindungsgemäßen Bewehrungselements. Dieses weist Längsstäbe 101 und Querstäbe 102 auf, die zu einem zweidimensionalen Basiselement eines Bewehrungselements in Form einer Bewehrungsmatte zusammengefügt sind. Hierzu sind jeweils vier Längsstäbe 101 nebeneinander gruppiert. An den mittleren Längsstäben 101 sind als Zusatzelemente Stäbe 21 angebracht, die als Zwischenelemente eine dreidimensionale Struktur bereitstellen. An den von den Längsstäben 101 abgewandten Enden der Stäbe 21 sind Stabelemente 40 angebracht. Die Stabelemente 40 bilden einen sogenannten Obergurt des Bewehrungselements und die Längsstäbe 101 und Querstäbe 102 sind Bestandteil eines sogenannten Untergurts des Bewehrungselements.The FIGS. 1 to 4 show an embodiment of a reinforcing element according to the invention. This has longitudinal bars 101 and cross bars 102, which are joined together to form a two-dimensional base element of a reinforcing element in the form of a reinforcing mat. For this purpose, four longitudinal bars 101 are grouped next to each other. At the central longitudinal bars 101 rods 21 are attached as additional elements, which provide a three-dimensional structure as intermediate elements. At the end remote from the longitudinal bars 101 ends of the rods 21 bar elements 40 are attached. The rod elements 40 form a so-called upper flange of the reinforcing element and the longitudinal bars 101 and transverse bars 102 are part of a so-called lower chord of the reinforcing element.

Eine erste Ausführungsform von Stäben 21 und deren Ausbildung im Zuge eines Verfahrens zur Herstellung eines Bewehrungselements wird anhand der Figuren 5 bis 9 verdeutlicht.A first embodiment of rods 21 and their training in the course of a method for producing a reinforcing element is based on the FIGS. 5 to 9 clarified.

Fig. 5A zeigt in einer Draufsicht zwei Längsstäbe 101, die durch Querstäbe 102 verbunden sind. Auf den Längsstäben 101 sind zwei durchgehende Stäbe 21 angebracht. Fig. 5B zeigt eine entsprechende Schnittdarstellung und Fig. 5C eine Vergrößerung der Schnittdarstellung gemäß Fig. 5B. Fig. 5A shows in a plan view two longitudinal bars 101, which are connected by cross bars 102. On the longitudinal bars 101 two continuous rods 21 are attached. Fig. 5B shows a corresponding sectional view and Fig. 5C an enlargement of the sectional view according to Fig. 5B ,

Die durchgehenden Stäbe 21 sind beziehungsweise werden mittig zwischen zwei Querstäben 102 getrennt, so dass sich eine Vielzahl von vereinzelten Stäben 21 ergibt, die jeweils im Bereich eines Querstabs 102 mit dem entsprechenden Längsstab 101 verbunden sind. Es versteht sich, dass auch andere Schnittstellen möglich sind. Insbesondere kann beispielsweise in der Mitte zwischen zwei Querstäben ein Stück herausgetrennt werden, so dass die vereinzelten Stäbe 21 verkürzte Längen haben. Die Enden der Stäbe 21 werden aus der Ebene des zweidimensionalen Basiselements herausgebogen, wie in den Figuren 6A und 6B dargestellt. Eine entsprechende Draufsicht dieses Zustands ist in Fig. 7 dargestellt.The continuous rods 21 are or are separated centrally between two transverse rods 102, so that a plurality of isolated rods 21 results, which are each connected in the region of a cross bar 102 with the corresponding longitudinal bar 101. It is understood that other interfaces are possible. In particular, for example, in the middle between two transverse bars a piece be cut out so that the isolated rods 21 have shortened lengths. The ends of the rods 21 are bent out of the plane of the two-dimensional base member, as in FIGS Figures 6A and 6B shown. A corresponding top view of this state is in Fig. 7 shown.

Fig. 8A zeigt, wie ein Stabelement 40 mit den von dem zweidimensionalen Basiselement abgewandten Enden der Stäbe 21 verbunden ist. Eine entsprechende Schnittdarstellung ist in Fig. 8B dargestellt. Fig. 9 zeigt eine entsprechende Draufsicht der Anordnung gemäß Fig. 8A und Fig. 8B, das heißt des dreidimensionalen Bewehrungselements. Fig. 8A shows how a rod element 40 is connected to the ends of the rods 21 facing away from the two-dimensional base element. A corresponding sectional view is in Fig. 8B shown. Fig. 9 shows a corresponding plan view of the arrangement according to 8A and 8B that is the three-dimensional reinforcing element.

Die Figuren 10A bis 14 zeigen eine weitere Ausführungsform der Stäbe 21. Bei dieser Ausführungsform sind auf jedem der beiden Längsstäbe 101 zwei durchgehende Stäbe 21 angebracht. Eine Trennung der Stäbe 21 erfolgt nicht mittig zwischen zwei Querstäben 102, sondern in der Höhe jedes zweiten Querstabs 102, wobei die Trennstellen des auf der Innenseite des Längsstabs 101 angeordneten Stabs 21 gegenüber den Trennstellen des auf der Außenseite des Längsstabs 101 angeordneten Stabs 21 jeweils um einen Querstab 102 versetzt sind. Beim Aufbiegen der Stabenden ergibt sich somit abwechselnd ein innen liegender Bogen 21a und ein außen liegender Bogen 21b. Die Enden der Bögen 21a und 21b werden ebenfalls mit einem Stabelement 40 verbunden.The FIGS. 10A to 14 show a further embodiment of the rods 21. In this embodiment, 101 two continuous rods 21 are mounted on each of the two longitudinal bars. A separation of the rods 21 is not carried out centrally between two transverse bars 102, but in the height of each second transverse bar 102, wherein the separation points of the arranged on the inside of the longitudinal bar 101 bar 21 with respect to the separation points of the arranged on the outside of the longitudinal bar 101 rod 21 in each case a transverse bar 102 are offset. When bending the rod ends thus results alternately an inner bow 21a and an outboard bow 21b. The ends of the sheets 21a and 21b are also connected to a rod member 40.

Es versteht sich, dass auch bei dieser Ausführungsform andere Schnittstellen möglich sind. Insbesondere kann auch bei dieser Ausführungsform ein Stück herausgetrennt werden, so dass die vereinzelten Stäbe 21 verkürzte Längen habenIt is understood that other interfaces are also possible in this embodiment. In particular, a piece can also be cut out in this embodiment, so that the isolated rods 21 have shortened lengths

ZusammenfassungSummary

Ein Bewehrungselement für eine Stahlbetonkonstruktion weist ein zweidimensionales Basiselement und Zwischenelemente zur Bereitstellung einer dreidimensionalen Struktur auf, wobei die Zwischenelemente Zusatzstabelemente aufweisen, die mit dem zweidimensionalen Basiselement verbunden sind, und wobei mehrere Stabelemente mit von dem zweidimensionalen Basiselement abgewandten Bereichen der Zwischenelemente verbunden sind. Die Zusatzelemente sind als aufgebogene einzelne Stabelemente ausgeführt.A reinforcing element for a reinforced concrete structure comprises a two-dimensional base element and intermediate elements for providing a three-dimensional structure, wherein the intermediate elements have additional bar elements which are connected to the two-dimensional base element, and wherein a plurality of bar elements are connected to regions of the intermediate elements which are remote from the two-dimensional base element. The additional elements are designed as straightened individual rod elements.

Claims (4)

  1. Reinforcement element with a two-dimensional base element (101, 102) and intermediate elements for providing a three-dimensional structure,
    wherein the two-dimensional base element (101, 102) comprises longitudinal struts (101) and crossbars (102) which are arranged one upon the other,
    wherein the intermediate elements comprise additional strut elements (21) in the form of bent up struts (21) which are connected to the two-dimensional base element (101, 102), and
    wherein one or several strut elements (40) are connected to the ends of the bent up struts (21), and
    the additional strut elements (21) are fixed to the lower one of the longitudinal struts (101) and crossbars (102) of the two-dimensional base element (101, 102),
    wherein the longitudinal struts (101) and the additional strut elements (21) are attached to the crossbars (102),
    wherein two additional strut elements (21) are arranged between two adjacent longitudinal struts (101),
    characterized in that
    the longitudinal struts (101) are each arranged in groups of four adjacent longitudinal struts (101), and
    that the two additional strut elements (21) are arranged between the central longitudinal struts (101).
  2. Reinforcement element according to claim 1, characterized in that additional strut elements (21) are arranged at both sides of the longitudinal struts (101).
  3. Reinforcement element according to claim 2, characterized in that additional strut elements (21) are arranged at both sides of the central longitudinal struts (101).
  4. Reinforcement element according to one of the preceding claims, characterized in that the two-dimensional base element (101, 102), the additional strut elements (21) and the strut elements (40) are connected to each other by welding, in particular by resistance welding.
EP10158968.7A 2009-04-22 2010-04-01 Reinforcement element Active EP2246499B1 (en)

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DE200910003813 DE102009003813A1 (en) 2009-04-22 2009-04-22 Reinforcing element, apparatus and method for producing a reinforcing element

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CN112160479A (en) * 2020-09-21 2021-01-01 中南大学 Rib plate skeleton concrete cast-in-place board

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DE102013018907B4 (en) * 2013-11-13 2016-05-19 Mbk Maschinenbau Gmbh Apparatus and method for producing reinforcing mats and reinforcing mat
IT202000020629A1 (en) 2020-08-28 2022-02-28 Awm Spa METALLIC REINFORCEMENT FOR STRUCTURAL ELEMENTS IN REINFORCED CONCRETE AND STRUCTURAL ELEMENT CONTAINING SUCH REINFORCEMENT

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BE551128A (en) *
DE7313874U (en) * 1973-07-26 Hellmich F Composite lattice girder for stiffening reinforcement mesh
DE1963946U (en) * 1967-04-13 1967-07-13 Ernst Dr Ing Haeussler CONNECTING ANCHORS FOR PRE-FABRICATED WALL ELEMENTS MADE OF REINFORCED CONCRETE.
DE2024819C3 (en) * 1970-05-21 1973-10-18 Rehm, Gallus, Prof. Dr.-Ing., 8000 Muenchen Welded wire mesh
DE2126981A1 (en) * 1971-05-29 1973-05-10 Wolfram Von Eulenberger CONNECTING ANCHORS TO A STRUCTURAL STEEL MAT, IN PARTICULAR FOR MULTI-LAYER CONCRETE SLABS
US3840054A (en) * 1972-10-16 1974-10-08 New York Wire Mills Corp Stirrup fabric pipe reinforcement
DE3942753A1 (en) 1989-12-23 1991-06-27 Schmidt Gerhard R Mfg. three=dimensional reinforcing unit - sets longitudinal rods on supports and suspends zigzag diagnosis transversely to rods
IT1289898B1 (en) * 1997-01-15 1998-10-19 Froma S R L PREFABRICATED STRUCTURAL PANEL FOR THE CONSTRUCTION OF BUILDINGS FOR CIVIL OR INDUSTRIAL USE
IT1290725B1 (en) * 1997-02-18 1998-12-10 Claudio Bernardinis METALLIC TRUSS WITH COMBINABLE ELECTROWELDED METALLIC NET
CZ285054B6 (en) * 1997-11-21 1999-05-12 Jaromil Čeřovský Structural core of three-dimensional reinforced concrete grillage and process for producing thereof
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CN112160479A (en) * 2020-09-21 2021-01-01 中南大学 Rib plate skeleton concrete cast-in-place board
CN112160479B (en) * 2020-09-21 2021-05-11 中南大学 Rib plate skeleton concrete cast-in-place board

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