EP0086771B1 - Gittermatte - Google Patents

Gittermatte Download PDF

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Publication number
EP0086771B1
EP0086771B1 EP83890021A EP83890021A EP0086771B1 EP 0086771 B1 EP0086771 B1 EP 0086771B1 EP 83890021 A EP83890021 A EP 83890021A EP 83890021 A EP83890021 A EP 83890021A EP 0086771 B1 EP0086771 B1 EP 0086771B1
Authority
EP
European Patent Office
Prior art keywords
wires
longitudinal
transverse
plane
loops
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
EP83890021A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0086771A3 (en
EP0086771A2 (de
Inventor
Gerhard Dipl.-Ing. Schmidt
Gerhard Dipl.-Ing. Dr. Ritter
Klaus Dipl.-Ing. Ritter
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
EVG Entwicklungs und Verwertungs GmbH
Original Assignee
EVG Entwicklungs und Verwertungs GmbH
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by EVG Entwicklungs und Verwertungs GmbH filed Critical EVG Entwicklungs und Verwertungs GmbH
Publication of EP0086771A2 publication Critical patent/EP0086771A2/de
Publication of EP0086771A3 publication Critical patent/EP0086771A3/de
Application granted granted Critical
Publication of EP0086771B1 publication Critical patent/EP0086771B1/de
Expired legal-status Critical Current

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Classifications

    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
    • E04C5/00—Reinforcing elements, e.g. for concrete; Auxiliary elements therefor
    • E04C5/01—Reinforcing elements of metal, e.g. with non-structural coatings
    • E04C5/02—Reinforcing elements of metal, e.g. with non-structural coatings of low bending resistance
    • E04C5/04—Mats

Definitions

  • the invention relates to a lattice mat made of longitudinal and transverse wires welded together, in which at least some transverse wires protrude beyond the longitudinal edge wires and are bent back in the form of loops.
  • Lattice mats of this type are known for example from DE-B-23 50 866.
  • the purpose of the loop-shaped design of the transverse wire end parts is an improved force transmission from the transverse wires of one mat into the transverse wires of an adjacent mat in a surface reinforcement for a reinforced concrete structure made up of a plurality of lattice mats laid next to one another.
  • the mats in the desired manner i.e. H. Arranging two adjacent mats with longitudinal or transverse wire coulters lying in pairs on the same plane is a straight course of the longitudinal and transverse wires, because only with straight wires is the probability that two wires remain vertically one above the other without sliding against each other, even then extremely is low if both the top and bottom wires are connected to other wires to form a mat.
  • the invention is now concerned with the task of forming mesh mats of the type specified in the introduction so that they can be stacked in a space-saving manner in the same way and with the same devices as are used for mesh mats with straight straight longitudinal and transverse wires.
  • the solution to this problem according to the invention is that at each mat edge at least the curved parts of the loops formed by the transverse wire ends from the plane of the transverse wires are angled or curved so far towards the plane of the longitudinal wires that the tips of the loops between these two planes lie.
  • the tip of a loop is to be understood in each case that point at which the tangent to the axis of the curved transverse wire end part runs parallel to the longitudinal wire axes.
  • FIG. 1 shows a grid mat made of longitudinal and transverse wires L and Q welded to one another at their crossing points, in which the transverse wire end parts protrude beyond the longitudinal edge wires and are bent back in the form of loops S to the longitudinal edge wires and are welded to them.
  • the two outermost longitudinal wires have a smaller center distance from each other than the other longitudinal wires, in order to shorten the required covering width of adjacent mats in the event of a load-bearing joint.
  • the loops S are, according to the invention, a short distance outside the longitudinal longitudinal wires parallel to these straight lines G from the plane of the transverse wires in FIG Angled towards the plane of the longitudinal wires.
  • FIG. 2 shows a cross wire Q1 welded to an edge longitudinal wire L1 of the lower mat, a cross wire Q2 welded to an edge longitudinal wire L2 of the middle mat, and finally a cross wire Q3 welded to an edge longitudinal wire L3 of the upper mat.
  • the middle mat is turned by 180 ° with respect to the lower and the upper mat, which is why the loops S1 and S3 of the lower and upper mat formed by the end parts of the cross wires Q1 and Q3 around the straight line G which is shown in FIG Cross wire level obliquely upwards, but the loops S2 of the middle mat appear angled obliquely downwards.
  • the straight longitudinal wires L1 of the lower and L2 of the middle mats lie, as can be clearly seen in the sectional illustration according to FIG. 2, next to one another in a common horizontal plane. Even the straight parts of the transverse wires Q2 of the middle mat and Q3 of the upper mat lie, as can be seen particularly clearly in the top view according to FIG. 3, next to one another in a common horizontal plane.
  • the radial sections IM to VII-M show that the space-saving interlocking described above meshes as a result of the bending of the loops the longitudinal and transverse wire coulters of adjacent mats are not hindered.
  • the radial sections I-M and VII-M show that the cross sections of the cross wires Q2 and Q3 lie at the beginning and at the end of each loop in a common horizontal plane, whereas according to the Ra-.
  • Dial-cut IV-M lie one above the other in the area of the loop tips.
  • the cross section through the cross wire Q3 corresponds exactly to a section through the loop tip and is therefore denoted by K.
  • the straight lines G are preferably at a distance a from the adjacent longitudinal edge wire of the mat, as indicated in FIG. 2 on the lower mat, which is somewhat larger than the longitudinal wire diameter D.
  • the cross wires Q then run a straight line a beyond the longitudinal edge wire and only the subsequent curved part of the loop is angled. As shown above all in Figure 2, this measure creates a sufficiently large free space in the stack, limited by the cross wires Q2 and Q3 upwards and by the cross wire Q1 downwards, in which the loop S1 of the cross wire Q1 and the with this cross wire welded line wire L1 a line wire L2 of the neighboring mat can find space.
  • the longitudinal and transverse wires of the grid mat have the same diameter.
  • the cross section K through the loop tips should be the plane EL defined by the axes of the longitudinal wires L3 and the plane EQ defined by the axes of the straight sections of the transverse wires Q3 tangent at points P1, P2 diametrically opposite in cross section K.
  • straight cross wires can be fed to a grid welding machine, the end parts of which protrude beyond the longitudinal longitudinal wires are formed into loops in a subsequent operation after welding the longitudinal and transverse wires, which are then angled or curved in a further operation in the manner already described .
  • the grid welding machine can also be supplied with preformed cross wires which are already provided with loops and which, after welding to the longitudinal wires, merely have to be angled or curved.
  • the grid welding machine can also be fully formed, i.e. H. cross wires already provided with angled or curved loops, which only have to be welded to the longitudinal wires.

Landscapes

  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Wire Processing (AREA)
  • Carpets (AREA)
  • Superconductors And Manufacturing Methods Therefor (AREA)
  • Road Paving Structures (AREA)
EP83890021A 1982-02-17 1983-02-15 Gittermatte Expired EP0086771B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
AT0060982A AT374537B (de) 1982-02-17 1982-02-17 Gittermatte
AT609/82 1982-02-17

Publications (3)

Publication Number Publication Date
EP0086771A2 EP0086771A2 (de) 1983-08-24
EP0086771A3 EP0086771A3 (en) 1984-10-17
EP0086771B1 true EP0086771B1 (de) 1986-05-28

Family

ID=3495115

Family Applications (1)

Application Number Title Priority Date Filing Date
EP83890021A Expired EP0086771B1 (de) 1982-02-17 1983-02-15 Gittermatte

Country Status (16)

Country Link
US (1) US4503650A (fi)
EP (1) EP0086771B1 (fi)
AT (1) AT374537B (fi)
AU (1) AU550694B2 (fi)
CA (1) CA1184775A (fi)
CH (1) CH658288A5 (fi)
DE (1) DE3363649D1 (fi)
ES (1) ES278857Y (fi)
FI (1) FI71811C (fi)
GR (1) GR78133B (fi)
HU (1) HU188254B (fi)
MX (1) MX156433A (fi)
NO (1) NO158109C (fi)
PT (1) PT76234B (fi)
YU (1) YU44122B (fi)
ZA (1) ZA831061B (fi)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20070095006A1 (en) * 2005-11-01 2007-05-03 Konersmann Ronald D Lightweight portable concrete enclosure and associated method of construction

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1051126A (en) * 1910-11-04 1913-01-21 Maurice Lachman Metallic fabric for fences and other structures.
US1172085A (en) * 1912-05-11 1916-02-15 Plastic Products Company Key-base for side walls and ceilings.
US1740493A (en) * 1928-08-02 1929-12-24 Charles R Birdsey Plaster-board-joint reenforcement
DE2350866C3 (de) * 1973-10-10 1979-12-13 Rehm, Gallus, Prof. Dr.-Ing., 8000 Muenchen Betonstahlmatte
US4031685A (en) * 1974-10-24 1977-06-28 Heinz Robert F Reinforcing cage construction

Also Published As

Publication number Publication date
CA1184775A (en) 1985-04-02
FI830506L (fi) 1983-08-18
PT76234A (de) 1983-03-01
EP0086771A3 (en) 1984-10-17
FI71811B (fi) 1986-10-31
NO158109C (no) 1988-07-13
YU44122B (en) 1990-02-28
AU1147883A (en) 1983-08-25
ATA60982A (de) 1982-12-15
NO158109B (no) 1988-04-05
US4503650A (en) 1985-03-12
NO830520L (no) 1983-08-18
MX156433A (es) 1988-08-22
ES278857Y (es) 1985-03-01
FI71811C (fi) 1987-02-09
FI830506A0 (fi) 1983-02-15
ZA831061B (en) 1983-11-30
HU188254B (en) 1986-03-28
CH658288A5 (de) 1986-10-31
DE3363649D1 (en) 1986-07-03
EP0086771A2 (de) 1983-08-24
HUT35315A (en) 1985-06-28
GR78133B (fi) 1984-09-26
AU550694B2 (en) 1986-03-27
YU38783A (en) 1986-08-31
ES278857U (es) 1984-08-01
PT76234B (de) 1986-01-10
AT374537B (de) 1984-05-10

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