EP1332262B2 - Reinforcing mat for reinforced concrete - Google Patents

Reinforcing mat for reinforced concrete Download PDF

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Publication number
EP1332262B2
EP1332262B2 EP01980045A EP01980045A EP1332262B2 EP 1332262 B2 EP1332262 B2 EP 1332262B2 EP 01980045 A EP01980045 A EP 01980045A EP 01980045 A EP01980045 A EP 01980045A EP 1332262 B2 EP1332262 B2 EP 1332262B2
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EP
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Prior art keywords
wires
longitudinal
central region
grades
range
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EP01980045A
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German (de)
French (fr)
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EP1332262B1 (en
EP1332262A1 (en
Inventor
Klaus Ritter
Klaus Matz
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AVI Alpenlaendische Veredelungs Industrie GmbH
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AVI Alpenlaendische Veredelungs Industrie GmbH
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Application filed by AVI Alpenlaendische Veredelungs Industrie GmbH filed Critical AVI Alpenlaendische Veredelungs Industrie GmbH
Priority to DE20122680U priority Critical patent/DE20122680U1/en
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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
    • E04C5/02—Reinforcing elements of metal, e.g. with non-structural coatings of low bending resistance
    • E04C5/04—Mats

Definitions

  • Reinforcing mats of the type described above are used for reinforcement of flat surface structures, in which forces in two mutually perpendicular directions, ie in the longitudinal and transverse directions corresponding to the intersecting wire coulters of the reinforcing mats, are to be transferred.
  • the reinforcing mats are known in a variety of different design to the large variety of to be reinforced surface structures with different dimensions and especially different, related to the reinforcement directions necessary steel sections can be adapted as well as possible. Since the reinforced concrete parts to be reinforced regularly have a greater width than the reinforcing mats, the reinforcing mats must be laid side by side with overlap. Here, certain minimum overlaps for static reasons are required to ensure the power flow from reinforcing mat to reinforcing mat.
  • the invention has the task of To achieve a fine gradation of the load capacity of the various mats of the type program when using less possible different wire diameter while avoiding the mentioned disadvantages and with low material costs.
  • all mats of the type program have a constant total width of 2400 mm, constant center distances of the inner longitudinal edge wires of their adjacent longitudinal wires of the central region of 200 mm, constant loop projections of 50 mm and the center distances of the longitudinal wires in the central region of the reinforcing mats 100, 120, 150, 180th mm and the diameters of the longitudinal, peripheral and transverse wires 6, 8, 9, 10 or 12 mm.
  • the longitudinal wires, the edge-length wires and the transverse wires are made of hot-rolled material of high ductility with integral wire diameters.
  • Vorzuarium are the cross-sectional areas of the two in the reinforcement mat Edge longitudinal wires at each mat edge smaller than the cross-sectional areas of the longitudinal wires in the central region of the reinforcing mat or equal to the cross-sectional areas of the longitudinal wires.
  • Fig. 1 a reinforcement mat with rectangular meshes in the central area of the reinforcement mat and Fig. 2 a reinforcement mesh with square stitches in the central area of the reinforcement mat.
  • Reinforcing mats 1 of the type program according to the invention consist of a central region Z and one edge region R on both longitudinal sides of the reinforcement mat 1.
  • the reinforcement mat 1 has longitudinal wires 2 parallel in the central region Z and an inner longitudinal edge wire 3 and an outer longitudinal edge wire 4 in each edge region R, which run parallel to one another and parallel to the other longitudinal wires 2.
  • the longitudinal wires 2 in the central region Z are arranged with the same mutual axial distance a, the so-called longitudinal wire pitch, the center distances a being measured in each case from the middle of the wire to the middle of the wire.
  • transverse wires 5 Run perpendicular to the longitudinal wires 2 and the Randlssensdxähten 3, 4 parallel transverse wires 5, which are welded at the respective grid intersection points 6 with the longitudinal wires 2 and the longitudinal edge wires 3, 4.
  • the transverse wires 5 are each arranged with the same mutual center distance e, the so-called cross-wire pitch.
  • the two longitudinal edge wires 3 and 4 are arranged in a mutual center distance c, which is substantially smaller than the mutual center distance a of the longitudinal wires 2 in the central region Z, whereby the longitudinal edge wires 3, 4 form a longitudinal edge pair.
  • the center distance c is preferably 50 mm, but in the context of the invention may also be in the range between 20 and 50 mm. Due to this narrow center distance c of the two longitudinal edge wires 3 and 4, the distance along which the cross wires 5 of two adjacent reinforcing mats overlap in shock, shortened and thereby saves cross-wire material when using multiple reinforcing mats for surface covering reinforcement of reinforced concrete components.
  • the inner longitudinal edge wires 3 are arranged by the adjacent longitudinal wire 2 in each case in a center distance b, which is greater than the mutual center distance a of the longitudinal wires 2 in the central region z.
  • An undesirable accumulation of steel in Studentsdekkungs Kunststoff is reduced, thereby saving material and the edge saving effect fully exploited.
  • the prescribed minimum overlap in the joint area is 200 mm.
  • a center distance b of 200 mm is chosen because, on the one hand, an edge saving effect is to be achieved and, on the other hand, no longitudinal wire accumulation should result.
  • the projecting beyond the outer edge longitudinal wire 4 end portions of the transverse wires 5 are bent back at each mat edge symmetrically to the longitudinal axis of the reinforcing mat 1 to edge loops 7 and welded in the cross points 8 with the associated outer longitudinal edge wire 4. It is within the scope of the invention also possible to bend the edge loops 7 at each mat edge in opposite directions to each other back. It is also possible within the scope of the invention to guide the edge loops 7 to the inner longitudinal edge wire 3 and to additionally weld them with this longitudinal edge wire 3 at the point of intersection 9 with the inner longitudinal edge wire 3.
  • the diameter of the edge loop 7 is selected such that when installed in reinforced concrete, the permissible concrete pressures in the curvature region of the edge loop 7 are not exceeded.
  • the distance d of the outer loop edge from the center of the outer edge longitudinal wire 4 is preferably 50 mm, but at least four to six times the diameter of the transverse wire. 5
  • edge loops 7 The formation of the edge loops 7 is achieved together with the tight position of the edge wires 3, 4, that in the overlapping joint of two reinforcing mats 1, the two welds of lying in front of the loop parts of each transverse wire with the two outer edge wires 3, 4 due to their small mutual distance c almost uniformly participate in the transmission and thus that the load per spot is reduced.
  • the edge loops 7 additionally improve the anchoring of overlapping reinforcing mats in the overlap shock and allow less overlap. Since the edge loops 7 make the position of the reinforcing mat edges in combination with several reinforcing mats 1 very clear, the actual coverage area is precisely defined and at the construction site the laying arrangement of the reinforcing mats can be easily controlled at any time.
  • the transverse wire pitch e is larger than the longitudinal wire pitch a.
  • the second, in the Fig. 2 illustrated embodiment of a reinforcing mat 1 of the type program according to the invention differs from the first embodiment in that the center distances e of the transverse wires 5 are equal to the axial distances a of the longitudinal wires 2 in the central region Z, so that the longitudinal and transverse wires 2; 5 in the central region Z square meshes 11 limit.
  • the sum of all center distances a, b and c and the loop projections d gives the total width B of the reinforcement mat 1.
  • the mat width B is selected in as few standard sizes, with a loading widths of the means of transport for the reinforcement mats adapted total width of 2400 mm worldwide as has economically naturalized particularly advantageous standard.
  • the reinforcing mats 1 are manufactured on the basis of this standard in a constant total width B of 2400 mm. Due to the constant center distances c of 50 mm, the constant center distances b of 200 mm and the constant loop projections d of 50 mm, constant wide edge regions R of 300 mm result, so that the central region Z of the reinforcing mat 1 has a constant width of 1800 mm.
  • the diameters of the edge longitudinal wires 3, 4 are chosen in the invention smaller than the diameter or at most equal to the diameter of the longitudinal wires 2 in the central region Z, so that the cross-sectional area f of each longitudinal edge wire 3; 4 is less than or equal to the cross-sectional area F of the longitudinal wires 2 in the central region Z of the reinforcing mat 1.
  • the diameters of the transverse wires 5 are selected smaller than the diameter or maximally equal to the diameter of the longitudinal wires 2 in the central region z, so that the cross-sectional area h of the transverse wires 5 is smaller than or equal to the cross-sectional area of the longitudinal wires 2 in the central region Z of the reinforcing mat 1 ,
  • the reinforcement mats can be made in any length L, with standard lengths in meter increments being preferred.
  • a widespread length L is 6 m, so that rectangular meshes 10 result in standard transverse wire pitches e of 400, 330 and 200 mm due to these meter increments.
  • the surface of the wires 2, 3, 4, 5 is preferably provided with a ribbing in order to increase the adhesion of the reinforcing mat 1 in the concrete.
  • All wires 2, 3, 4, 5 of the reinforcing mat 1 of the type program according to the invention are made of hot-rolled material of high ductility, which results from tempering of the hot-rolled material in the rolling heat.
  • the hot rolled material is manufactured in standard integer diameters of 6, 8, 9, 10 and 12 mm.
  • all the wires 2, 3, 4, 5 of the reinforcing mat 1 also consist of hot-rolled material, which is additionally subjected to a cold working in a further step and thereby obtains better mechanical and technological properties.
  • the cold working preferably consists of a stretching of the hot rolled material.
  • the cold deformation can alternatively also consist of a cold work hardening by rolling and / or drawing.
  • the wire is descaled prior to cold working so that the scale layer which is troublesome during welding is removed.
  • the cold deformation may alternatively consist of a stretching of the hot-rolled material.
  • the wire is not descaled before stretching, but the brittle scale layer bursts only during the stretching process and falls down. Also in this manufacturing process, the annihilating during welding scale layer is removed.
  • the preparation of the reinforcement mat 1 of the type program according to the invention is carried out in multi-point mesh welding systems, which operate on the electrical resistance method.
  • the longitudinal wires 2, 3, 4 can be supplied in the context of the invention in the form of prefabricated, straight bars of the mesh welding machine or be deducted from an endless strand of material.
  • the transverse wires 5 are withdrawn from an endless strand of material, which is present depending on the diameter and material properties of the transverse wires 5 in the form of wound coils or annular coils or rings.
  • the transverse wires 5 are then straightened and then fed to the mesh welding machine.
  • the longitudinal and longitudinal side wires 2; 3, 4 of the reinforcing mat 1 of hot-rolled material without additional cold deformation to produce while the transverse wires 5 are made of hot-rolled material, which is subjected to cold deformation in a further step.
  • Cold working may consist of work hardening by rolling and / or drawing or drawing.
  • the transverse wires 5 of the reinforcing mat 1 of hot-rolled material without additional cold deformation, while the longitudinal and longitudinal side wires 2; 3, 4 are made of hot-rolled material, which is subjected to cold deformation in a further step.
  • the cold working may in this case consist of a work hardening by rolling and / or drawing or from a stretching.

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  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Reinforcement Elements For Buildings (AREA)
  • Laminated Bodies (AREA)
  • Wire Processing (AREA)
  • Rod-Shaped Construction Members (AREA)

Abstract

The mat consists of longitudinal and transverse wires (2,5), welded together at the crossing points. It has two longitudinal edge wires (3,4) and two transverse looped wire ends. The longitudinal wires within the center area (Z) of the mat are at the same relative axial distance (a) and have the same cross-sectional surfaces. Edge areas on both longitudinal sides consist of a pair of parallel wedge wires (3,4) at a relative axial distance (c), which is smaller than the first axial distance. The axial distance (b) between the inner edge wire (3) and the neighboring wire (2) of the central area, is also larger than the first axial distance. The edge areas consist of edge loops (7). All wires are of warm-rolled material of high ductility, with even-numbered diameters, subjected to additional cold forming, pref. stretching.

Description

Die Erfindung betrifft einen Typenprogramm von Bewehrungsmatten für Stahlbeton, bestehend aus einander rechtwinkelig kreuzenden und an den Kreuzungspunkten miteinander verschweißten Längs- und Querdrähten sowie einem Paar benachbarter Randlängsdrähte an jedem Mattenlängsrand und über diese überstehenden Quer drahtendteilen, die in der Mattenebene in Form einer Schlaufe zu den Randlängsdrähten zurück gebogen und mit den Randlängsdrähten verschweißt sind. Hierbei haben innerhalb einer Matte

  1. (i) die Längsdrähte des Zentralbereiches jeweils gleiche Querschnittsflächen
  2. (ii) und gleiche Achsabstände.
    Hierbei ist überdies bei allen Matten des Typenprogramms
  3. (iii) die Gesamtbreite gleich,
  4. (iv) der Achsabstand der beiden benachbarten Randlängsdrähte untereinander gleich groß, sowie kleiner als der Achsabstand der Längsdrähte des Zentralbereiches,
  5. (v) der Achsabstand des inneren Randlängsdrahtes zum benachbarten Längsdraht des Zentralbereiches größer als der Achsabstand der Längsdrähte des Zentralbereiches.
The invention relates to a type program of reinforcing mats for reinforced concrete, consisting of mutually perpendicular crossing and welded together at the intersection points longitudinal and transverse wires and a pair of adjacent longitudinal edge wires at each longitudinal mat edge and over this protruding cross wire end parts in the plane of the mat in the form of a loop to the Edge longitudinal wires bent back and welded to the edge wires. Here have within a mat
  1. (i) the longitudinal wires of the central region each have the same cross-sectional areas
  2. (ii) and equal center distances.
    This is also on all mats of the type program
  3. (iii) the total width is equal,
  4. (iv) the center distance between the two adjacent longitudinal edge wires is equal to one another, and smaller than the center distance of the longitudinal wires of the central region,
  5. (V) the center distance of the inner longitudinal edge wire to the adjacent longitudinal wire of the central region greater than the axial distance of the longitudinal wires of the central region.

Bewehrungsmatten der einleitend angegebenen Art dienen zur Bewehrung von ebenen Flächentragwerken, bei denen Kräfte in zwei senkrecht zueinander stehenden Richtungen, d.h. in Längs- und Querrichtung entsprechend den einander kreuzenden Drahtscharen der Bewehrungsmatten, zu übertragen sind. Die Bewehrungsmatten sind in einer Vielzahl unterschiedlicher Ausgestaltung bekannt, um an die große Vielfalt der zu bewehrenden Flächentragwerke mit unterschiedlichen Abmessungen und vor allem unterschiedlichen, auf die Bewehrungsrichtungen bezogenen erforderlichen Stahlquerschnitten möglichst gut angepaßt werden zu können. Da die zu bewehrenden Stahlbetonteile regelmäßig eine größere Breite haben als die Bewehrungsmatten, müssen die Bewehrungsmatten nebeneinander mit Überdeckung verlegt werden. Hierbei sind gewisse Mindestüberdeckungen aus statischen Gründen erforderlich, um den Kraftfluß von Bewehrungsmatte zu Bewehrungsmatte zu gewährleisten.Reinforcing mats of the type described above are used for reinforcement of flat surface structures, in which forces in two mutually perpendicular directions, ie in the longitudinal and transverse directions corresponding to the intersecting wire coulters of the reinforcing mats, are to be transferred. The reinforcing mats are known in a variety of different design to the large variety of to be reinforced surface structures with different dimensions and especially different, related to the reinforcement directions necessary steel sections can be adapted as well as possible. Since the reinforced concrete parts to be reinforced regularly have a greater width than the reinforcing mats, the reinforcing mats must be laid side by side with overlap. Here, certain minimum overlaps for static reasons are required to ensure the power flow from reinforcing mat to reinforcing mat.

Aus der AT-B-377 564 und den zugehörigen Zusatzpatenten AT-B-381 540 und AT-B-381 542 sind Bewehrungsmatten mit den eingangs erwähnten Merkmalen bekannt, jedoch ist darin keine Lehre enthalten für ein Programm bzw. einen Satz von verschieden belastbaren Bewehrungsmatten.From the AT-B-377 564 and the associated additional patents AT-B-381 540 and AT-B-381 542 Reinforcement mats are known with the features mentioned above, but it is not contained in a teaching for a program or a set of different loadable reinforcing mats.

Ein Typenprogramm solcher Bewehrungsmatten gleicher Gesamtbreite, mit einer zur Anpassung an die verschiedenen Belastungen variablen Anzahl von Längsdrähten mit im Zentralbereich gleichem Durchmesser ist beschrieben in GB-B-999 417 . Es sind aber vier Randlängsdrähte in jedem Randbereich der Matten statt wie erfindungsgemäß zwei Randlängsdrähte vorgesehen und keine an über die Randlängsdrähte überstehenden Querdrahtendteilen vorhandenen Schlaufen beschrieben, und es trifft das oben erwähnte Merkmal (v) betreffend den Abstand des innersten Randlängsdrahtes zum benachbarten Längsdraht des Zentralbereiches nicht bei allen Matten des Satzes zu.A type program of such reinforcing mats of the same overall width, with a variable number of longitudinal wires with the same diameter in the central region to adapt to the different loads is described in GB-B-999 417 , However, four edge-length wires are provided in each edge region of the mats instead of two edge-length wires according to the invention and no loops present on the transverse-wire end parts projecting beyond the edge-longitudinal wires, and the above-mentioned feature (v) concerning the distance of the innermost edge-longitudinal wire from the adjacent longitudinal wire of the central region does not apply at all mats of the sentence too.

Zur Herstellung von Bewehrungsmatten wird immer häufiger warmgewalztes, aus der Walzhitze vergütetes Material verwendet, das eine hohe Duktilität aufweist und außerdem besonders wirtschaftlich hergestellt werden kann, da der Verarbeitungsschritt der Kaltverformung eingespart wird. Dieses Material wird standardmäßig in ganzzahligen Durchmesserwerten hergestellt.For the production of reinforcing mats, more and more hot-rolled, heat-tempered material is used, which has a high ductility and, moreover, can be produced particularly economically, since the processing step of cold-forming is saved. This material is manufactured by default in integer diameter values.

Ausgehend vom Stand der Technik der oben erwähnten österreichischen Patentschriften stellt sich die Erfindung die Aufgabe, eine feine Abstufung der Tragfähigkeit der verschiedenen Matten des Typenprogramms bei Einsatz möglichst weniger verschiedener Drahtdurchmesser unter Vermeidung der erwähnten Nachteile und mit geringem Materialaufwand zu erreichen.Starting from the prior art of the abovementioned Austrian patents, the invention has the task of To achieve a fine gradation of the load capacity of the various mats of the type program when using less possible different wire diameter while avoiding the mentioned disadvantages and with low material costs.

Diese Aufgabe wird gemäß dem Anspruch 1 gelöst. Dabei ist zusätlich zu den eingangs genannten Merkmalen vorgesehen,

  • (vi) daß alle Matten eines Typenprogrammes an ihren Längsrändern gleich und mit konstantem Achsabstand des inneren Randlängsdrahtes zum benachbarten Längsdraht des Zentralbereiches ausgebildet sind,
  • (vii) und bei den verschiedenen Matten des Typenprogramm die Anzahl der Längsdrähte des Zentralbereiches bei steigendem Stahlnennquerschnitt in ganzzahligen Schritten zunimmt und der gegenseitige Achsabstand der Längsdrähte im gleichen Maße abnimmt, so daß innerhalb des Typenprogramms eine geringe Anzahl verschiedener ganzzahliger Durchmesser der Längs-, Randlängs- und Querdrähte für die verschiedenen Belastungserfordernisse ausreicht.
This object is achieved according to claim 1. It is provided in addition to the features mentioned above,
  • (vi) that all mats of a type program are formed at their longitudinal edges the same and with a constant center distance of the inner edge longitudinal wire to the adjacent longitudinal wire of the central region,
  • (vii) and in the various mats of the type program, the number of longitudinal wires of the central region increases in incremental steel nominal cross-section in integer steps and the mutual axial distance of the longitudinal wires decreases to the same extent, so that within the type program a small number of different integer diameter of the longitudinal, Randlängs - And cross wires for the various load requirements sufficient.

Zur Lösung der Aufgabe tragen insbesondere die in der erwähnten britischen Patentschrift nicht beschriebenen erfindungsgemäßen Maßgaben (v) und (vi) betreffend den Abstand des inneren Randlängsdrahtes zum benachbarten Längsdraht des Zentralbereiches zusammen mit der erfindungsgemäßen Ausbildung der Schlaufen bei.To solve the problem, in particular the measures (v) and (vi) according to the invention, which are not described in the abovementioned British patent specification, relate to the distance between the inner longitudinal edge wire and the adjacent longitudinal wire of the central region together with the inventive construction of the loops.

Vorteilhaft haben alle Matten des Typenprogramms eine konstante Gesamtbreite von 2400 mm, konstante Achsabstände der inneren Randlängsdrähte von ihren benachbarten Längsdrähten des Zentralbereiches von 200 mm, konstante Schlaufenüberstände von 50 mm und betragen die Achsabstände der Längsdrähte im Zentralbereich der Bewehrungsmatten 100, 120, 150, 180 mm und betragen die Durchmesser der Längs-, Randlängs- und Querdrähte 6, 8, 9, 10 oder 12 mm.Advantageously, all mats of the type program have a constant total width of 2400 mm, constant center distances of the inner longitudinal edge wires of their adjacent longitudinal wires of the central region of 200 mm, constant loop projections of 50 mm and the center distances of the longitudinal wires in the central region of the reinforcing mats 100, 120, 150, 180th mm and the diameters of the longitudinal, peripheral and transverse wires 6, 8, 9, 10 or 12 mm.

Nach einem weiteren Merkmal der Erfindung bestehen die Längsdrähte, die Randlängsdrähte und die Querdrähte aus warmgewalztem Material hoher Duktilität mit ganzzahligen Drahtdurchmessern.According to a further feature of the invention, the longitudinal wires, the edge-length wires and the transverse wires are made of hot-rolled material of high ductility with integral wire diameters.

Vorzuasweise sind bei der Bewehrungsmatte die Querschnittsflächen der beiden Randlängsdrähte an jedem Mattenrand kleiner als die Querschnittsflächen der Längsdrähte im Zentralbereich der Bewehrungsmatte oder gleich groß wie die Querschnittsflächen der Längsdrähte.Vorzuasweise are the cross-sectional areas of the two in the reinforcement mat Edge longitudinal wires at each mat edge smaller than the cross-sectional areas of the longitudinal wires in the central region of the reinforcing mat or equal to the cross-sectional areas of the longitudinal wires.

Weitere Merkmale und Vorteile der Erfindung werden nachfolgend an Ausführungsbeispielen unter Bezugnahme auf die Zeichnungen näher erläutert. Es zeigen: Fig. 1 eine Bewehrungsmatte mit rechteckigen Maschen im Zentralbereich der Bewehrungsmatte und Fig. 2 eine Bewehrungsmatte mit quadratischen Maschen im Zentralbereich der Bewehrungsmatte.Further features and advantages of the invention will be explained in more detail by means of exemplary embodiments with reference to the drawings. Show it: Fig. 1 a reinforcement mat with rectangular meshes in the central area of the reinforcement mat and Fig. 2 a reinforcement mesh with square stitches in the central area of the reinforcement mat.

Die in den Fig. 1 und 2 dargestellten, Bewehrungsmatten 1 des erfindungsgemäßen Typenprogramm bestehen aus einem Zentralbereich Z und je einem Randbereich R zu beiden Längsseiten der Bewehrungsmatte 1. Die Bewehrungsmatte 1 weist im Zentralbereich Z parallele Längsdrähte 2 und in jedem Randbereich R einen inneren Randlängsdraht 3 und einen äußeren Randlängsdraht 4 auf, die parallel zueinander und parallel zu den übrigen Längsdrähten 2 verlaufen. Die Längsdrähte 2 im Zentralbereich Z sind mit gleichem gegenseitigen Achsabstand a, der sogenannten Längsdrahtteilung, angeordnet, wobei die Achsabstände a jeweils von Drahtmitte zu Drahtmitte gemessen werden. Rechtwinkelig zu den Längsdrähten 2 und den Randlängsdxähten 3, 4 verlaufen parallele Querdrähte 5, die an den jeweiligen Gitterkreuzungspunkten 6 mit den Längsdrähten 2 und den Randlängsdrähten 3, 4 verschweißt sind. Die Querdrähte 5 sind jeweils mit gleichem gegenseitigen Achsabstand e angeordnet, der sogenannten Querdrahtteilung.The in the Fig. 1 and 2 Reinforcing mats 1 of the type program according to the invention consist of a central region Z and one edge region R on both longitudinal sides of the reinforcement mat 1. The reinforcement mat 1 has longitudinal wires 2 parallel in the central region Z and an inner longitudinal edge wire 3 and an outer longitudinal edge wire 4 in each edge region R, which run parallel to one another and parallel to the other longitudinal wires 2. The longitudinal wires 2 in the central region Z are arranged with the same mutual axial distance a, the so-called longitudinal wire pitch, the center distances a being measured in each case from the middle of the wire to the middle of the wire. Run perpendicular to the longitudinal wires 2 and the Randlängsdxähten 3, 4 parallel transverse wires 5, which are welded at the respective grid intersection points 6 with the longitudinal wires 2 and the longitudinal edge wires 3, 4. The transverse wires 5 are each arranged with the same mutual center distance e, the so-called cross-wire pitch.

Die beiden Randlängsdrähte 3 und 4 sind in einem gegenseitigen Achsabstand c angeordnet, der wesentlich kleiner als der gegenseitige Achsabstand a der Längsdrähte 2 im Zentralbereich Z ist, wodurch die Randlängsdrähte 3, 4 ein Randlängsdrahtpaar bilden. Der Achsabstand c beträgt vorzugsweise 50 mm, kann im Rahmen der Erfindung jedoch auch im Bereich zwischen 20 und 50 mm liegen. Durch diesen engen Achsabstand c der beiden Randlängsdrähte 3 und 4 wird bei Anwendung mehrerer Bewehrungsmatten zur flächenüberdeckenden Bewehrung von Stahlbetonbauteilen die Strecke, längs welcher sich die Querdrähte 5 zweier benachbarten Bewehrungsmatten im Stoß überdecken, verkürzt und dadurch Querdrahtmaterial eingespart.The two longitudinal edge wires 3 and 4 are arranged in a mutual center distance c, which is substantially smaller than the mutual center distance a of the longitudinal wires 2 in the central region Z, whereby the longitudinal edge wires 3, 4 form a longitudinal edge pair. The center distance c is preferably 50 mm, but in the context of the invention may also be in the range between 20 and 50 mm. Due to this narrow center distance c of the two longitudinal edge wires 3 and 4, the distance along which the cross wires 5 of two adjacent reinforcing mats overlap in shock, shortened and thereby saves cross-wire material when using multiple reinforcing mats for surface covering reinforcement of reinforced concrete components.

Die inneren Randlängsdrähte 3 sind von dem benachbarten Längsdraht 2 jeweils in einem Achsabstand b angeordnet, der größer als der gegenseitige Achsabstand a der Längsdrähte 2 im Zentralbereich z ist. Eine unerwünschte stahlhäufung im Überdekkungsbereich wird verringert, dadurch Material eingespart und der Randspareffekt voll ausgenutzt. Die vorgeschriebene Mindestüberdeckung im Stoßbereich beträgt 200 mm. Für alle Bewehrungsmatten 1 des erfindungsgemäßen Typenprogramms wird ein Achsabstand b von 200 mm gewählt, da einerseits ein Randspareffekt erzielt werden soll und sich andererseits keine Längsdrahtanhäufung ergeben soll.The inner longitudinal edge wires 3 are arranged by the adjacent longitudinal wire 2 in each case in a center distance b, which is greater than the mutual center distance a of the longitudinal wires 2 in the central region z. An undesirable accumulation of steel in Überdekkungsbereich is reduced, thereby saving material and the edge saving effect fully exploited. The prescribed minimum overlap in the joint area is 200 mm. For all reinforcing mats 1 of the type program according to the invention, a center distance b of 200 mm is chosen because, on the one hand, an edge saving effect is to be achieved and, on the other hand, no longitudinal wire accumulation should result.

Die über den äußeren Randlängsdraht 4 hinausragenden Endteile der Querdrähte 5 sind an jedem Mattenrand symmetrisch zur Längsachse der Bewehrungsmatte 1 zu Randschlaufen 7 zurückgebogen und in den Kreuzpunkten 8 mit dem zugeordneten äußeren Randlängsdraht 4 verschweißt. Es ist im Rahmen der Erfindung auch möglich, die Randschlaufen 7 an jedem Mattenrand gegensinnig zueinander zurück zu biegen. Es ist ferner im Rahmen der Erfindung möglich, die Randschlaufen 7 bis zum inneren Randlängsdraht 3 zu führen und sie zusätzlich mit diesem Randlängsdraht 3 im Kreuzungspunkt 9 mit dem inneren Randlängsdraht 3 zu verschweißen. Der Durchmesser der Randschlaufe 7 wird derart gewählt, daß beim Einbau in Stahlbeton die zulässigen Betonpressungen im Krümmungsbereich der Randschlaufe 7 nicht überschritten werden. Der Abstand d des äußeren Schlaufenrandes von der Mitte des äußeren Randlängsdrahtes 4 beträgt vorzugsweise 50 mm, zumindest jedoch das Vier- bis Sechsfache des Durchmessers des Querdrahtes 5.The projecting beyond the outer edge longitudinal wire 4 end portions of the transverse wires 5 are bent back at each mat edge symmetrically to the longitudinal axis of the reinforcing mat 1 to edge loops 7 and welded in the cross points 8 with the associated outer longitudinal edge wire 4. It is within the scope of the invention also possible to bend the edge loops 7 at each mat edge in opposite directions to each other back. It is also possible within the scope of the invention to guide the edge loops 7 to the inner longitudinal edge wire 3 and to additionally weld them with this longitudinal edge wire 3 at the point of intersection 9 with the inner longitudinal edge wire 3. The diameter of the edge loop 7 is selected such that when installed in reinforced concrete, the permissible concrete pressures in the curvature region of the edge loop 7 are not exceeded. The distance d of the outer loop edge from the center of the outer edge longitudinal wire 4 is preferably 50 mm, but at least four to six times the diameter of the transverse wire. 5

Durch die Ausbildung der Randschlaufen 7 wird zusammen mit der engen Stellung der Randlängsdrähte 3, 4 erreicht, daß im Überdeckungsstoß zweier Bewehrungsmatten 1 die beiden Schweißpunkte des vor der Schlaufe liegenden Teile jedes Querdrahtes mit den beiden äußeren Randlängsdrähten 3, 4 infolge ihres kleinen gegenseitigen Abstandes c nahezu gleichmäßig an der Kraftübertragung mitwirken und daß somit die Belastung je Schweißpunkt vermindert wird. Die Randschlaufen 7 verbessern zusätzlich die Verankerung einander überlappender Bewehrungsmatten im Überdeckungsstoß und ermöglichen eine geringere Überdeckung. Da die Randschlaufen 7 die Lage der Bewehrungsmattenränder im Verbund von mehreren Bewehrungsmatten 1 sehr klar erkennen lassen, ist der tatsächliche Überdeckungsbereich genau definiert und auf der Baustelle die Verlegeanordnung der Bewehrungsmatten jederzeit leicht kontrollierbar.The formation of the edge loops 7 is achieved together with the tight position of the edge wires 3, 4, that in the overlapping joint of two reinforcing mats 1, the two welds of lying in front of the loop parts of each transverse wire with the two outer edge wires 3, 4 due to their small mutual distance c almost uniformly participate in the transmission and thus that the load per spot is reduced. The edge loops 7 additionally improve the anchoring of overlapping reinforcing mats in the overlap shock and allow less overlap. Since the edge loops 7 make the position of the reinforcing mat edges in combination with several reinforcing mats 1 very clear, the actual coverage area is precisely defined and at the construction site the laying arrangement of the reinforcing mats can be easily controlled at any time.

Beim Ausführungsbeispiel gemäß der Fig. 1 ist der Achsabstand e der Querdrähte 5 größer als der Achsabstand a der Längsdrähte 2 im Zentralbereich Z, so daß bei diesem Ausführungsbeispiel die Längs- und Querdrähte 2; 5 im Zentralbereich Z der Bewehrungsmatte 1 Maschen 10 mit rechteckiger Form begrenzen. Hierbei ist die Querdrahtteilung e größer als die Längsdrahtteilung a.In the embodiment according to the Fig. 1 is the center distance e of the transverse wires 5 greater than the axial distance a of the longitudinal wires 2 in the central region Z, so that in this embodiment, the longitudinal and transverse wires 2; 5 in the central region Z of the reinforcing mat 1 mesh 10 limit rectangular shape. Here, the transverse wire pitch e is larger than the longitudinal wire pitch a.

Das zweite, in der Fig. 2 dargestellte Ausführungsbeispiel einer Bewehrungsmatte 1 des erfindungsgemäßen Typenprogramms, unterscheidet sich von dem ersten Ausführungsbeispiel dadurch, daß die Achsabstände e der Querdrähte 5 gleich den Achsabständen a der Längsdrähte 2 im Zentralbereich Z sind, so daß die Längs- und Querdrähte 2; 5 im Zentralbereich Z quadratische Maschen 11 begrenzen.The second, in the Fig. 2 illustrated embodiment of a reinforcing mat 1 of the type program according to the invention differs from the first embodiment in that the center distances e of the transverse wires 5 are equal to the axial distances a of the longitudinal wires 2 in the central region Z, so that the longitudinal and transverse wires 2; 5 in the central region Z square meshes 11 limit.

Die Summe aus allen Achsabständen a, b und c und den Schlaufenüberständen d ergibt die Gesamtbreite B der Bewehrungsmatte 1. Üblicherweise wird die Mattenbreite B in möglichst wenigen Standardgrößen gewählt, wobei sich eine den Ladebreiten der Transportmittel für die Bewehrungsmatten angepaßte Gesamtbreite von 2400 mm weltweit als wirtschaftlich besonders vorteilhafter Standard eingebürgert hat. Die Bewehrungsmatten 1 werden aufgrund dieses Standards in einer konstanten Gesamtbreite B von 2400 mm hergestellt. Aufgrund der konstanten Achsabständen c von 50 mm, den konstanten Achsabständen b von 200 mm und den konstanten Schlaufenüberständen d von 50 mm ergeben sich konstant breite Randbereiche R von 300 mm, so daß der Zentralbereich Z der Bewehrungsmatte 1 eine konstante Breite von 1800 mm aufweist.The sum of all center distances a, b and c and the loop projections d gives the total width B of the reinforcement mat 1. Usually, the mat width B is selected in as few standard sizes, with a loading widths of the means of transport for the reinforcement mats adapted total width of 2400 mm worldwide as has economically naturalized particularly advantageous standard. The reinforcing mats 1 are manufactured on the basis of this standard in a constant total width B of 2400 mm. Due to the constant center distances c of 50 mm, the constant center distances b of 200 mm and the constant loop projections d of 50 mm, constant wide edge regions R of 300 mm result, so that the central region Z of the reinforcing mat 1 has a constant width of 1800 mm.

Die Durchmesser der Randlängsdrähte 3, 4 werden im Rahmen der Erfindung kleiner als der Durchmesser oder maximal gleich dem Durchmesser der Längsdrähte 2 im Zentralbereich Z gewählt, so daß die Querschnittsfläche f jedes Randlängsdrahtes 3; 4 kleiner oder gleich der Querschnittsfläche F der Längsdrähte 2 im Zentralbereich Z der Bewehrungsmatte 1 ist. Durch diese Maßnahme wird die Stahlanhäufung im Übergriffsbereich von zwei Bewehrungsmatten 1 vermindert. Die Durchmesser der Querdrähte 5 werden im Rahmen der Erfindung kleiner als der Durchmesser oder maximal gleich dem Durchmesser der Längsdrähte 2 im Zentralbereich z gewählt, so daß die Querschnittsfläche h der Querdrähte 5 kleiner oder gleich der Querschnittsfläche der Längsdrähte 2 im Zentralbereich Z der Bewehrungsmatte 1 ist.The diameters of the edge longitudinal wires 3, 4 are chosen in the invention smaller than the diameter or at most equal to the diameter of the longitudinal wires 2 in the central region Z, so that the cross-sectional area f of each longitudinal edge wire 3; 4 is less than or equal to the cross-sectional area F of the longitudinal wires 2 in the central region Z of the reinforcing mat 1. By this measure, the steel accumulation is reduced in the reach of two reinforcing mats 1. In the context of the invention, the diameters of the transverse wires 5 are selected smaller than the diameter or maximally equal to the diameter of the longitudinal wires 2 in the central region z, so that the cross-sectional area h of the transverse wires 5 is smaller than or equal to the cross-sectional area of the longitudinal wires 2 in the central region Z of the reinforcing mat 1 ,

Die Bewehrungsmatten können in jeder beliebigen Länge L hergestellt werden, wobei Standardlängen in Meterabstufungen bevorzugt werden. Eine weit verbreitete Länge L beträgt 6 m, so daß sich bei rechteckigen Maschen 10 aufgrund dieser Meterabstufungen standardmäßige Querdrahtteilungen e von 400, 330 und 200 mm ergeben.The reinforcement mats can be made in any length L, with standard lengths in meter increments being preferred. A widespread length L is 6 m, so that rectangular meshes 10 result in standard transverse wire pitches e of 400, 330 and 200 mm due to these meter increments.

Die Oberfläche der Drähte 2, 3, 4, 5 ist vorzugsweise mit einer Rippung versehen, um die Haftung der Bewehrungsmatte 1 im Beton zu erhöhen.The surface of the wires 2, 3, 4, 5 is preferably provided with a ribbing in order to increase the adhesion of the reinforcing mat 1 in the concrete.

Alle Drähte 2, 3, 4, 5 der Bewehrungsmatte 1 des erfindungsgemäßen Typenprogramms bestehen aus warmgewalztem Material hoher Duktilität, die durch Vergütung des warmgewalzten Materials in der Walzhitze entsteht. Im Rahmen der Erfindung ist es auch möglich die hohe Duktilität durch Mikrolegierung des Materials zu erhalten. Das warmgewalzte Material wird standardmäßig in ganzzahligen Durchmessern mit Werten von 6, 8, 9, 10 und 12 mm hergestellt.All wires 2, 3, 4, 5 of the reinforcing mat 1 of the type program according to the invention are made of hot-rolled material of high ductility, which results from tempering of the hot-rolled material in the rolling heat. In the context of the invention, it is also possible to obtain the high ductility by microalloying the material. The hot rolled material is manufactured in standard integer diameters of 6, 8, 9, 10 and 12 mm.

Im Rahmen der Erfindung können alle Drähte 2, 3, 4, 5 der Bewehrungsmatte 1 auch aus warmgewalztem Material bestehen, das in einem weiteren Arbeitsschritt zusätzlich einer Kaltverformung unterworfen wird und dadurch bessere mechanisch-technologischen Eigenschaften erhält. Die Kaltverformung besteht vorzugsweise aus einer Reckung des warmgewalzten Materials. Im Rahmen der Erfindung kann die Kaltverformung alternativ auch aus einer Kaltverfestigung durch Walzen und/oder ziehen bestehen. Bei diesem Herstellungsverfahren wird der Draht vor der Kaltverformung entzundert, so daß die beim Verschweißen störende Zunderschicht entfernt wird. Die Kaltverformung kann alternativ auch aus einer Reckung des warmgewalzten Materials bestehen. Bei diesem Herstellungsverfahren wird der Draht vor der Reckung nicht entzundert, sondern die spröde Zunderschicht platzt erst während des Reckvorganges auf und fällt herunter. Auch bei diesem Herstellungsverfahren wird die beim Verschweißen störende Zunderschicht entfernt.In the context of the invention, all the wires 2, 3, 4, 5 of the reinforcing mat 1 also consist of hot-rolled material, which is additionally subjected to a cold working in a further step and thereby obtains better mechanical and technological properties. The cold working preferably consists of a stretching of the hot rolled material. In the context of the invention, the cold deformation can alternatively also consist of a cold work hardening by rolling and / or drawing. In this manufacturing process, the wire is descaled prior to cold working so that the scale layer which is troublesome during welding is removed. The cold deformation may alternatively consist of a stretching of the hot-rolled material. In this production method, the wire is not descaled before stretching, but the brittle scale layer bursts only during the stretching process and falls down. Also in this manufacturing process, the annihilating during welding scale layer is removed.

Um ein Programm aus verschiedenen Typen der Bewehrungsmatte 1 möglichst wirtschaftlich herstellen zu können, werden gemäß der Lehre der Erfindung einerseits nur Mattentypen mit konstanter Gesamtbreite B, konstant breiten und identisch aufgebauten Randbereichen R und damit konstant breitem Zentralbereich Z unter ausschließlicher Verwendung der standardmäßig zur Verfügung stehenden, oben angeführten ganzzahligen Durchmesser des warmgewalzten Drahtmaterials hergestellt und werden andererseits zum Erreichen einer vom Anwender geforderten, möglichst feinen Abstufung der Stahlnennquerschnitte bei den Mattentypen die Längsdrähte 2 im Zentralbereich Z der Bewehrungsmatte 1 gleichmäßig verteilt und die Achsabstände a in entsprechender Abstufung gewählt. Bei einer Gesamtbreite der Bewehrungsmatte von B = 2400 mm, hat es sich als besonders vorteilhaft herausgestellt, einen Achsabstand von b = 200 mm, einen Achsabstand von c = 50 mm und einem Schlaufenüberstand von d = 50 mm zu wählen, wodurch sich eine daraus resultierende Breite des Zentralbereiches von Z = 1800 mm und damit die folgende Reihe von optimalen Längsdrahtteilungen a ergibt: a = 100; 120; 150; 180 mm. Zur Erfüllung der meisten Bewehrungsaufgaben reicht in diesem Fall eine ausgewählte Hauptreihe mit Werten von a = 100; 150 mm meistens aus. Die Änderung der Längsdrahtteilung a dieser Hauptreihe erfolgt in Schritten von 50 mm, die den gängigen Änderungen der Längsdrahtteilungen herkömmlicher Gitterschweißanlagen optimal entspricht. Im Prinzip wären im Rahmen der Erfindung bei diesem Beispiel auch kleinere und auch größere Längsdrahtteilungen möglich, die jedoch weder statisch noch fertigungstechnisch einen Sinn machen. Im Rahmen der Erfindung ergeben sich bei anderen Gesamtbreiten B und/oder anderen Achsabständen b andere optimale Reihen von Längsdrahtteilungen, wobei oftmals ein Kompromiß zwischen den optimalen, wirtschaftlichen Herstellungsverfahren und den statischen Anforderungen an das Mattentypenprogramm zu schließen ist.In order to produce a program of different types of reinforcing mat 1 as economically as possible, according to the teaching of the invention only mats types with constant overall width B, constant width and identically constructed edge regions R and thus constant wide central region Z under exclusive use of the standard available On the other hand, the longitudinal wires 2 in the central region Z of the reinforcing mat 1 are distributed uniformly and the center distances a are selected in a corresponding graduation to achieve a user-requested, the finest possible gradation of the steel nominal cross sections. With a total width of the reinforcement mat of B = 2400 mm, it has been found to be particularly advantageous to choose a center distance of b = 200 mm, a center distance of c = 50 mm and a loop projection of d = 50 mm, resulting in a resulting Width of the central region of Z = 1800 mm and thus the following set of optimal longitudinal wire pitches a gives: a = 100; 120; 150; 180 mm. To fulfill most of the reinforcement tasks in this case, a selected main series with values of a = 100 is sufficient; 150 mm mostly off. The change in the longitudinal wire pitch a of this main row is made in increments of 50 mm, which corresponds to the usual changes in the longitudinal wire pitches of conventional mesh welding systems optimally. In principle, in the context of the invention in this example, smaller and larger longitudinal wire divisions would be possible, but make neither statically nor manufacturing technology sense. Within the scope of the invention, other optimum widths of longitudinal wire divisions result in other overall widths B and / or other center distances b, whereby often a compromise has to be made between the optimum economic production method and the static requirements for the mat type program.

Aufgrund der Ausgestaltung der Bewehrungsmatte 1 des erfindungsgemäßen Typenprogramms und der optimalen Abstufungen der Langsdrahtteilung a ist es möglich, bei konstanter Gesamtbreite B der Bewehrungsmatte 1 und bei Einhaltung der konstanten Ausbildung der linken und rechten Randbereiche R ein Mattentypenprogramm zu schaffen, das mit einer minimalen Anzahl von Längsdrahtdurchmessern das Auslangen findet; insbesondere ist es möglich, auf jeden Fall nur ganzzahlige Längsdrahtdurchmesser zu verwenden, um die gewünschte Feinabstufung der Stahlnennquerschnitte innerhalb des Mattentypenprogrammes zu ermöglichen.Due to the configuration of the reinforcing mat 1 of the type program according to the invention and the optimal gradations of Langsdrahtteilung a, it is possible to create a constant width B of the reinforcing mat 1 and maintaining the constant training of the left and right margins R a mat type program that comes with a minimum number of longitudinal wire diameters Auslangen; In particular, it is possible to use only integer longitudinal wire diameter in any case to allow the desired fine grading of the steel nominal cross sections within the mat type program.

Die Herstellung der Bewehrungsmatte 1 des erfindungsgemäßen Typenprogramms erfolgt in Vielpunkt-Gitterschweißanlagen, die nach der elektrischen Widerstandemethode arbeiten. Die Längsdrähte 2, 3, 4 können im Rahmen der Erfindung in Form von vorgefertigten, geraden Stäben der Gitterschweißmaschine zugeführt oder von einem endlosen Materialstrang abgezogen werden. Die Querdrähte 5 werden von einem endlosen Materialstrang abgezogen, der je nach Durchmesser und Materialeigenschaft der Querdrähte 5 in Form von gewickelten Spulen oder ringförmigen Bunden oder Ringen vorliegt. Die Querdrähte 5 werden anschließend gerade gerichtet und dann der Gitterschweißmaschine zugeführt. Im Rahmen der Erfindung ist es auch möglich, die vom Materialstrang abgezogenen Querdrähte 5 zunächst gerade zu richten und auf Länge zu schneiden und dann diese abgelängten Querdrähte der Gitterschweißanlage zuzuführen.The preparation of the reinforcement mat 1 of the type program according to the invention is carried out in multi-point mesh welding systems, which operate on the electrical resistance method. The longitudinal wires 2, 3, 4 can be supplied in the context of the invention in the form of prefabricated, straight bars of the mesh welding machine or be deducted from an endless strand of material. The transverse wires 5 are withdrawn from an endless strand of material, which is present depending on the diameter and material properties of the transverse wires 5 in the form of wound coils or annular coils or rings. The transverse wires 5 are then straightened and then fed to the mesh welding machine. In the context of the invention, it is also possible to direct the transverse wires 5 drawn from the material strand initially straight and cut to length and then supply these cut transverse wires of the grid welding system.

Es versteht sich, daß das dargestellte Ausführungsbeispiel im Rahmen des allgemeinen Erfindungsgedankens verschiedentlich, insbesondere hinsichtlich der Ausgestaltung der Bewehrungsmatte abgewandelt werden kann; insbesondere ist es im Rahmen der Erfindung möglich, im Zentralbereich Z der Bewehrungsmatte 1 anstelle von Einzeldrähten auch Doppelstäbe zu verwenden.It is understood that the illustrated embodiment may be modified variously, in particular in terms of the design of the reinforcing mat within the scope of the general inventive concept; In particular, it is possible within the scope of the invention to use double rods in the central region Z of the reinforcing mat 1 instead of individual wires.

Des weiteren ist es im Rahmen der Erfindung möglich, die Längs- und Randlängsdrähte 2; 3, 4 der Bewehrungsmatte 1 aus warmgewalztem Material ohne zusätzlicher Kaltverformung zu erzeugen, während die Querdrähte 5 aus warmgewalztem Material bestehen, das in einem weiteren Arbeitsschritt einer Kaltverformung unterworfen wird. Die Kaltverformung kann aus einer Kaltverfestigung durch Walzen und/oder Ziehen oder aus einer Reckung bestehen. Des weiteren ist es im Rahmen der Erfindung möglich, die Querdrähte 5 der Bewehrungsmatte 1 aus warmgewalztem Material ohne zusätzlicher Kaltverformung zu erzeugen, während die Längs- und Randlängsdrähte 2; 3, 4 aus warmgewalztem Material bestehen, das in einem weiteren Arbeitsschritt einer Kaltverformung unterworfen wird. Die Kaltverformung kann auch in diesem Fall aus einer Kaltverfestigung durch Walzen und/oder Ziehen oder aus einer Reckung bestehen.Furthermore, it is possible within the scope of the invention, the longitudinal and longitudinal side wires 2; 3, 4 of the reinforcing mat 1 of hot-rolled material without additional cold deformation to produce, while the transverse wires 5 are made of hot-rolled material, which is subjected to cold deformation in a further step. Cold working may consist of work hardening by rolling and / or drawing or drawing. Furthermore, it is within the scope of the invention possible to produce the transverse wires 5 of the reinforcing mat 1 of hot-rolled material without additional cold deformation, while the longitudinal and longitudinal side wires 2; 3, 4 are made of hot-rolled material, which is subjected to cold deformation in a further step. The cold working may in this case consist of a work hardening by rolling and / or drawing or from a stretching.

Claims (10)

  1. Range of grades of reinforcing mats (1) for reinforced concrete, consisting of longitudinal (2) and transverse wires (5) crossing one another at right angles and welded to one another at the points of intersection, and a pair of adjacent longitudinal edge wires (3, 4) at each longitudinal mat edge and transverse wire end portions which project beyond these longitudinal edge wires and are bent back in the mat plane in the form of a loop (7) to form the longitudinal edge wires (3, 4) and are welded to the longitudinal edge wires (4), within a mat (1)
    (i) the longitudinal wires (2) of the central region (Z) each having the same cross-sectional areas
    (ii) and having the same axial distances (a)
    and in all mats (1) of the range of grades
    (iii) the total width (B) being constant,
    (iv) the axial distance (c) between the two adjacent longitudinal edge wires (3, 4) being the same size and being smaller than the axial distance (a) between the longitudinal wires (2) of the central region (Z), and
    (v) the axial distance (b) of the inner longitudinal edge wire (3) from the adjacent longitudinal wire (2) of the central region (Z) being greater than the axial distance (a) between the longitudinal wires (2) of the central region (Z),
    characterised in that,
    (vi) all mats of the range of grades are formed in the same way at their longitudinal edges and so as to have a constant axial distance (b) of the inner longitudinal edge wire (3) from the adjacent longitudinal wire (2) of the central region (Z),
    (vii) and in different mats (1) of the range of grades the number of longitudinal wires (2) of the central region (Z) increases in whole-number steps as the nominal steel cross-section increases, and the mutual axial distance (a) of the longitudinal wires (2) decreases to the same extent, so that within the range of grades a low number of different whole-number diameters of the longitudinal (2), longitudinal edge (3, 4) and transverse wires (5) is sufficient for the different load requirements.
  2. Range of grades of reinforcing mats according to claim 1, characterised in that all mats (1) of the range of grades have a constant total width (B) of 2,400 mm, constant axial distances (b) of the inner longitudinal edge wires (3) from their adjacent longitudinal wires (2) of the central region (Z) of 200 mm, constant axial distances (c) of the inner longitudinal edge wires (3) from the outer longitudinal edge wires (4) of 50 mm, constant loop projections (d) of 50 mm, in that the axial distances (a) between the longitudinal wires (2) in the central region (Z) of the reinforcing mats (1) are 100, 120, 150, 180 mm, and in that the diameters of the longitudinal, longitudinal edge and transverse wires (2; 3, 4; 5) are 6, 8, 9, 10 and 12 mm.
  3. Range of grades of reinforcing mats according to claim 2, characterised in that the axial distances (a) between the longitudinal wires (2) in the central region (Z) of the reinforcing mats (1) change in increments of 50 mm, the axial distances (a) preferably being 100, 150 mm.
  4. Range of grades of reinforcing mats according to any one of claims 1 to 3, characterised in that the axial distances (e) between the transverse wires (5) of all reinforcing mats (1) of the range of grades are 100, 150, 200, 330 and 400 mm.
  5. Range of grades of reinforcing mats according to any one of claims 1 to 4, characterised in that the longitudinal wires (2), the longitudinal edge wires (3, 4) and the transverse wires (5) consist of hot-rolled material of high ductility having whole-number wire diameters.
  6. Range of grades of reinforcing mats according to claim 5, characterised in that the longitudinal wires (2), the longitudinal edge wires (3, 4) and the transverse wires (5) consist of hot-rolled material of high ductility, which is subjected to additional cold shaping, preferably stretching.
  7. Range of grades of reinforcing mats according to any one of claims 1 to 6, characterised in that the cross-sectional areas (f) of the two longitudinal edge wires (3, 4) at each mat edge, as known per se, are smaller than the cross-sectional areas (F) of the longitudinal wires (2) in the central region (Z) of the reinforcing mat (1), or in that the cross-sectional areas (f) of the longitudinal edge wires (3, 4) are the same size as the cross-sectional areas (F) of the longitudinal wires (2).
  8. Range of grades of reinforcing mats according to any one of claims 1 to 7, characterised in that the cross-sectional areas (h) of the transverse wires (5) are smaller than the cross-sectional areas (F) of the longitudinal wires (2) in the central region (Z) of the reinforcing mat (1) or the same size as the cross-sectional areas (F) of the longitudinal wires (2).
  9. Range of grades of reinforcing mats according to any one of claims 1 to 8, characterised in that the central region (Z) of the reinforcing mat (1), as known per se, comprises rectangular meshes (10), the axial distances (e) between the transverse wires (5) being greater than the axial distances (a) between the longitudinal wires (2) in the central region (Z) of the reinforcing mat (1).
  10. Range of grades of reinforcing mats according to any one of claims 1 to 8, characterised in that the central region (Z) of the reinforcing mat (1), as known per se, comprises square meshes (11).
EP01980045A 2000-11-08 2001-11-08 Reinforcing mat for reinforced concrete Expired - Lifetime EP1332262B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE20122680U DE20122680U1 (en) 2000-11-08 2001-11-08 Reinforcing mat for reinforced concrete has central area with longitudinal wires at even axial distances and the same cross sectional surfaces, and with looped wire edge areas

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
AT0188900A AT411279B (en) 2000-11-08 2000-11-08 REINFORCEMENT MAT FOR STEEL CONCRETE
AT18892000 2000-11-08
PCT/AT2001/000351 WO2002038884A1 (en) 2000-11-08 2001-11-08 Reinforcing mat for reinforced concrete

Publications (3)

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EP1332262A1 EP1332262A1 (en) 2003-08-06
EP1332262B1 EP1332262B1 (en) 2006-09-06
EP1332262B2 true EP1332262B2 (en) 2012-02-15

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EP01980045A Expired - Lifetime EP1332262B2 (en) 2000-11-08 2001-11-08 Reinforcing mat for reinforced concrete

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EP (1) EP1332262B2 (en)
AT (2) AT411279B (en)
DE (3) DE20122693U1 (en)
HR (1) HRP20030359A2 (en)
ME (1) MEP19608A (en)
PL (1) PL361305A1 (en)
RS (1) RS50293B (en)
RU (1) RU2273705C2 (en)
SI (1) SI1332262T2 (en)
UA (1) UA76965C2 (en)
WO (1) WO2002038884A1 (en)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BG65488B1 (en) * 2004-11-09 2008-09-30 Avi Alpenlaendische Veredelungs-Industrie Gesellschaft M.B.H. Method for the production of a set of reinforcing meshes for ferroconcrete
EP1669508A1 (en) * 2004-12-10 2006-06-14 Avi Alpenländische Veredelungs-Industrie Gesellschaft m.b.H. Reinforcing mat for reinforced concrete
EP1741851B2 (en) * 2005-07-04 2013-04-24 RUWA Drahtschweisswerk AG Reinforcing mat for reinforced concrete and method for manufacturing a wall reinforcement
EP2130989A1 (en) * 2008-06-02 2009-12-09 AVI Alpenländische Veredelungs-Industrie Gesellschaft m.b.H. Reinforcement mesh for reinforced concrete with at least one area of overhang
IT1393381B1 (en) * 2008-09-19 2012-04-20 Melfer S R L METHOD FOR THE CONSTRUCTION AND INSTALLATION OF A BUILDING ARMOR FOR CONSTRUCTIONS, PARTICULARLY FOR THE CONSTRUCTION OF STREET OR SIMILAR TUNNELS, AND ARMOR SUCH AS OBTAINABLE
CH701796A2 (en) 2009-09-10 2011-03-15 Debrunner Koenig Man Ag A reinforcing element for installation in concrete components.

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE973001C (en) 1954-09-02 1959-11-12 Baustahlgewebe Gmbh Reinforcement arrangement made of spot-welded reinforcement mesh
US3430406A (en) * 1963-05-06 1969-03-04 Laclede Steel Co Reinforcing mat for use in constructing continuously reinforced concrete slabs
DE1484116C3 (en) * 1963-07-08 1975-12-04 Bau-Stahlgewebe Gmbh, 4000 Duesseldorf Reinforcement mesh row
AT377564B (en) 1981-11-20 1985-04-10 Avi Alpenlaendische Vered REINFORCEMENT MAT FOR STEEL CONCRETE
EP0080454B1 (en) * 1981-11-20 1985-08-14 AVI ALPENLAENDISCHE VEREDELUNGS-INDUSTRIE, Gesellschaft m.b.H. Reinforcing mat for armoured concrete
AT381540B (en) 1981-11-20 1986-10-27 Avi Alpenlaendische Vered REINFORCEMENT MAT FOR STEEL CONCRETE
AT381542B (en) * 1981-12-23 1986-10-27 Avi Alpenlaendische Vered REINFORCEMENT MAT FOR STEEL CONCRETE
EP0067266A1 (en) * 1981-12-16 1982-12-22 BOSSARD & STÄRKLE AG Reinforcing mesh for biaxial deflection, and method for applying the same
AT379423B (en) * 1982-12-03 1986-01-10 Avi Alpenlaendische Vered REINFORCEMENT MAT FOR STEEL CONCRETE
TW334009U (en) * 1994-09-12 1998-06-11 Stahl Und Walzwerk Marien Hutte Ges M B H Reinforcement steel strip for sheet-like reinforced steel structure
CH689515A5 (en) * 1999-01-19 1999-05-31 Stahl Gerlafingen Ag Concrete steel mat for reinforcement purposes

Also Published As

Publication number Publication date
RU2273705C2 (en) 2006-04-10
UA76965C2 (en) 2006-10-16
EP1332262B1 (en) 2006-09-06
DE20122680U1 (en) 2007-02-22
RS50293B (en) 2009-09-08
HRP20030359A2 (en) 2003-08-31
DE50110957D1 (en) 2006-10-19
DE20122693U1 (en) 2007-06-14
YU28803A (en) 2005-09-19
ATA18892000A (en) 2003-04-15
PL361305A1 (en) 2004-10-04
WO2002038884A1 (en) 2002-05-16
AT411279B (en) 2003-11-25
SI1332262T2 (en) 2012-05-31
ATE338859T1 (en) 2006-09-15
SI1332262T1 (en) 2007-02-28
MEP19608A (en) 2010-06-10
EP1332262A1 (en) 2003-08-06

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