EP2246499B1 - Elément d'armature - Google Patents

Elément d'armature 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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EP
European Patent Office
Prior art keywords
bars
elements
reinforcement
mat
additional
Prior art date
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Active
Application number
EP10158968.7A
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German (de)
English (en)
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EP2246499A2 (fr
EP2246499A3 (fr
Inventor
Christian Prilhofer
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Prilhofer Christian
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Individual
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Publication of EP2246499A3 publication Critical patent/EP2246499A3/fr
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Classifications

    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
    • E04C5/00—Reinforcing elements, e.g. for concrete; Auxiliary elements therefor
    • E04C5/01—Reinforcing elements of metal, e.g. with non-structural coatings
    • E04C5/06—Reinforcing elements of metal, e.g. with non-structural coatings of high bending resistance, i.e. of essentially three-dimensional extent, e.g. lattice girders
    • E04C5/0627—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.

Landscapes

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

Claims (4)

  1. Elément d'armature comportant un élément de base bidimensionnel (101, 102) et des éléments intermédiaires permettant de fournir une structure tridimensionnelle,
    dans lequel l'élément de base bidimensionnel (101, 102) présente des barres longitudinales (101) et des barres transversales (102), qui sont disposées les unes au-dessus des autres,
    dans lequel les éléments intermédiaires présentent des éléments de barres supplémentaires (21) sous la forme de barres repliées (21), qui sont reliés à l'élément de base bidimensionnel (101, 102), et
    dans lequel un ou plusieurs éléments de barres (40) sont reliés aux extrémités des barres repliées (21) et
    les éléments de barres supplémentaires (21) sont fixés sur l'inférieure des barres longitudinales (101) et des barres transversales (102) de l'élément de base bidimensionnel (101, 102),
    dans lequel les barres longitudinales (101) et les éléments de barres supplémentaires (21) sont montés sur les barres transversales (102),
    dans lequel deux éléments de barres supplémentaires (21) sont disposés entre deux barres longitudinales (101) adjacentes,
    caractérisé en ce que
    les barres longitudinales (101) sont disposées respectivement en groupes de quatre barres longitudinales (101) adjacentes et
    que les deux éléments de barres supplémentaires (21) sont disposés entre les barres longitudinales (101) centrales.
  2. Elément d'armature selon la revendication 1, caractérisé en ce que des éléments de barres supplémentaires (21) sont disposés de part et d'autre des barres longitudinales (101).
  3. Elément d'armature selon la revendication 2, caractérisé en ce que des éléments de barres supplémentaires (21) sont disposés de part et d'autre des barres longitudinales (101) centrales.
  4. Elément d'armature selon l'une des revendications précédentes, caractérisé en ce que l'élément de base bidimensionnel (101, 102), les éléments de barres supplémentaires (21) et les éléments de barres (40) sont reliés entre eux par soudage, en particulier par soudage par résistance.
EP10158968.7A 2009-04-22 2010-04-01 Elément d'armature Active EP2246499B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE200910003813 DE102009003813A1 (de) 2009-04-22 2009-04-22 Bewehrungselement, Vorrichtung und Verfahren zur Herstellung eines Bewehrungselements

Publications (3)

Publication Number Publication Date
EP2246499A2 EP2246499A2 (fr) 2010-11-03
EP2246499A3 EP2246499A3 (fr) 2014-08-27
EP2246499B1 true EP2246499B1 (fr) 2016-03-09

Family

ID=42173907

Family Applications (1)

Application Number Title Priority Date Filing Date
EP10158968.7A Active EP2246499B1 (fr) 2009-04-22 2010-04-01 Elément d'armature

Country Status (2)

Country Link
EP (1) EP2246499B1 (fr)
DE (1) DE102009003813A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112160479A (zh) * 2020-09-21 2021-01-01 中南大学 一种肋板骨架混凝土现浇板

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102013018907B4 (de) * 2013-11-13 2016-05-19 Mbk Maschinenbau Gmbh Vorrichtung und Verfahren zur Herstellung von Bewehrungsmatten sowie Bewehrungsmatte
IT202000020629A1 (it) 2020-08-28 2022-02-28 Awm Spa Armatura metallica per elementi strutturali in cemento armato ed elemento strutturale contenente tale armatura

Family Cites Families (11)

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Publication number Priority date Publication date Assignee Title
BE551128A (fr) *
DE7313874U (de) * 1973-07-26 Hellmich F Verbund Gitterträger zum Aussteifen von Baustahlgewebematten
DE1963946U (de) * 1967-04-13 1967-07-13 Ernst Dr Ing Haeussler Verbundanker fuer fertigwandelemente aus stahlbeton.
DE2024819C3 (de) * 1970-05-21 1973-10-18 Rehm, Gallus, Prof. Dr.-Ing., 8000 Muenchen Baustahlmatte
DE2126981A1 (de) * 1971-05-29 1973-05-10 Wolfram Von Eulenberger An eine baustahlmatte anschliessbarer verbundanker, insbesondere fuer mehrschichten-betonplatten
US3840054A (en) * 1972-10-16 1974-10-08 New York Wire Mills Corp Stirrup fabric pipe reinforcement
DE3942753A1 (de) 1989-12-23 1991-06-27 Schmidt Gerhard R Verfahren zur herstellung eines raeumlichen bewehrungselementes
IT1289898B1 (it) * 1997-01-15 1998-10-19 Froma S R L Pannello strutturale prefabbricato per la costruzione di edifici per uso civile o industriale
IT1290725B1 (it) * 1997-02-18 1998-12-10 Claudio Bernardinis Traliccio metallico combinabile a rete metallica elettrosaldata
CZ285054B6 (cs) * 1997-11-21 1999-05-12 Jaromil Čeřovský Trojrozměrný betonářský výztužný rošt a způsob jeho výroby
AT407718B (de) 1999-10-22 2001-05-25 Filzmoser Franz Vorrichtung zum verarbeiten von bewehrungsdrähten zu wenigstens zwei gruppen unterschiedlich langer stäbe für eine bewehrung, insbesondere eine bewehrungsmatte

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112160479A (zh) * 2020-09-21 2021-01-01 中南大学 一种肋板骨架混凝土现浇板
CN112160479B (zh) * 2020-09-21 2021-05-11 中南大学 一种肋板骨架混凝土现浇板

Also Published As

Publication number Publication date
DE102009003813A1 (de) 2010-10-28
EP2246499A2 (fr) 2010-11-03
EP2246499A3 (fr) 2014-08-27

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