EP0227762B1 - Abstandhalter für bewehrungen in einer schalung - Google Patents

Abstandhalter für bewehrungen in einer schalung Download PDF

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Publication number
EP0227762B1
EP0227762B1 EP86904127A EP86904127A EP0227762B1 EP 0227762 B1 EP0227762 B1 EP 0227762B1 EP 86904127 A EP86904127 A EP 86904127A EP 86904127 A EP86904127 A EP 86904127A EP 0227762 B1 EP0227762 B1 EP 0227762B1
Authority
EP
European Patent Office
Prior art keywords
spring element
spacer
section
plate
spacer according
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
EP86904127A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0227762A1 (de
Inventor
Siegfried Dreizler
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to AT86904127T priority Critical patent/ATE51921T1/de
Publication of EP0227762A1 publication Critical patent/EP0227762A1/de
Application granted granted Critical
Publication of EP0227762B1 publication Critical patent/EP0227762B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • E04C5/16—Auxiliary parts for reinforcements, e.g. connectors, spacers, stirrups
    • E04C5/168—Spacers connecting parts for reinforcements and spacing the reinforcements from the form

Definitions

  • the invention relates to a spacer for reinforcement in a formwork, in particular a concrete wall, according to the preamble of claim 1.
  • Such a spacer is known from DE-A-3 140 585.
  • the U-shaped recess lies in the lower area of the plate-shaped part and opens downwards.
  • the spring element is anchored in one leg of this recess and projects transversely into the recess.
  • the width and curvature of the U-shaped recess is adapted to the thickness of the bar used in a reinforcement mat, so that different spacers are required for different strengths of reinforcement bars.
  • Such spacers can therefore only be used for a certain size of the bars of a reinforcement mat, so that, for example, on a construction site where different reinforcement mats are processed, different spacers must be kept that are adapted to the strengths of the reinforcement bars.
  • the known spacer once it is pushed onto a reinforcement bar, is very difficult to remove, so that an accidentally incorrectly fitted spacer can only be removed from the reinforcement mat while it is being destroyed.
  • a spacer of another type is known from GB-A-941 194.
  • This spacer has a U-shaped recess which is also formed in the lower region of a block and is open at the bottom, an anchored bracket being anchored in one leg of this recess and pressing a reinforcing bar inserted into the recess against the other leg of the recess.
  • reinforcement bars of different diameters can be inserted into the recess and also removed relatively easily.
  • the clamping effect of the spring clip on the reinforcing bar is relatively small, so that the reinforcing bar can easily change its seat in the U-shaped recess.
  • the invention has for its object to provide a generic spacer so that reinforcing bars of different diameters are securely held in the U-shaped recess of the plate-shaped part and, if necessary, can also be relatively easily removed therefrom.
  • Two flat areas 9 and 10 of the plate 1 in the upper area 2 serve as a connecting surface with a spacer rod 11, such as he is indicated in Fig. 1 by the dash-dotted line.
  • the plate 1 is connected to the spacer rod 11 by means of spot welding connections.
  • the plate 1 has a recess 13 on a side 12 opposite the edge 8.
  • the recess 13 has a roughly U-shaped profile, a base line 14 of the "U" diverging in a straight line in the direction of the lower region 4 with respect to the axis 7.
  • the divergence angle a shown in FIG. 2 is approximately 10 °.
  • the legs 15, 16 of the U-shaped profile of the recess 13 run parallel to one another and approximately perpendicular to the axis 7, the leg 15 being longer than the leg 16 due to the divergence of the base line 14.
  • the plate 1 tapers in the lower region 4, as seen from top to bottom, immediately following the recess 13 along an edge 17.
  • the taper angle ⁇ is approximately 17 °.
  • the plate 1 is designed as a stamped sheet metal part and can be manufactured continuously without waste in the direction of the axis 7.
  • a spring element 20 shown in FIG. 3 has a first region 21, in which it assumes the shape of a rectangular "Z". Seen in the writing direction of a "Z", a second area 22 adjoins, in which the spring element 20 assumes the shape of an approximately rectangular, initially bent down and almost closed loop.
  • the first region 21 and the second region 22 of the spring element lie on one level.
  • the loop of the second region 22 has an end section 24, the end 25 of which is directed towards a transition region 26 between the first region 21 and the second region 22 of the spring element 20.
  • the transition region 26 is inclined relative to a vertical part or its axis 27 of the “Z” of the first region 21 by an angle ö in addition to the right angle of the “Z”.
  • the angle of inclination 5 is approximately 5 °.
  • the first area 21 of the spring element 20 with a "Z" shape is designed such that it can be inserted into the bead 5 of the plate 1 shown in FIG. 2 in the upper area 2, the axis 7 of the bead 5 and the axis 27 of the vertical part of the first region 21 of the spring element 20 coincide (see FIG. 4). Due to the additional deviation by the angle of the transition region 26 from the vertical axis 27, the spring element 20 must be pressed into the bead 5 when the spacer is assembled, as a result of which it is tensioned and presses against the walls of the bead 5.
  • the spring element 20 has a diameter 28 which is slightly larger than a depth 29 of the bead 5 (see FIG. 1). When the spring element 20 is inserted into the bead 5, it protrudes slightly beyond a surface 30 of the plate 1. When using a wire, it is about 2/10 to 3/10 mm thicker than the depth 29 of the bead 5.
  • the spring element -20 is pressed into the bead 5 and the spacer rod 11 is welded to the flat areas 9 and 10 of the upper area 2 of the plate 1.
  • the spring element 20 is clamped between the spacer rod 11 and the plate 1.
  • the bead 5 is used not only for receiving the spring element 20 but also for stiffening purposes for the plate 1.
  • FIG. 4 shows part of a spacer according to the invention which is supported on a casing 31.
  • the spacer rod 11 has a plastic cap 32 at its end.
  • Caps made of materials with an affinity for concrete e.g. polymer concrete
  • a complete spacer which is to keep two reinforcement meshes at a distance from one another, is constructed in such a way that a mirror image of the part shown in FIG. 4 is provided with a second part arranged at a corresponding distance.
  • the end section 24 of the spring element 20 comes to lie in front of the recess 13 of the plate 1.
  • the second area 22, ie the loop of the spring element 20, lies in the main plane of the plate 1.
  • a guide section 33 of the second area 22 of the spring element 20 located in front of the end section 24 is bent in such a way that it is approximately uniform, however runs opposite to the tapered edge 17 of the lower region 4 of the plate 1, so that an approximately V-shaped or funnel-shaped region 34 is delimited by the edge 17 and the guide section 33, whereby it is easier to push the spacer onto a rod 35 of a reinforcement mat.
  • the spacer according to the invention is placed on a rod 35 of a reinforcement mat, the rod 35 being in contact with the guide section 33 and the edge 17 of the plate 1.
  • the placement is facilitated by the V-shaped design, so that this process can be carried out very quickly and without special attention.
  • the rod 35 is then brought between the end section 24 and the recess 13 by a strong jerk while overcoming the spring force of the loop of the spring element 20. In the embodiment shown in Fig. 4, a force of about 10 kg is necessary.
  • the diameter of the bar 35 is approximately equal to the diameter of the spacer bar 11.
  • reinforcement meshes with bars of larger diameter can also be held. .
  • the diameter of the spacer bar 11 about 5 mm
  • the diameter range of the bars of reinforcement mats is about 5-10 mm, so that all common Staer - ken of reinforcement mats on construction sites may be used.
  • the force exerted on the loop is absorbed by the entire second region 22 during the lateral deflection movement of the spring element 20 when a rod 35 is pressed in.
  • An inserted rod 35 of a reinforcement mat is thus pressed into the recess 13 with the spring force fully deployed and thus held completely securely.
  • the reinforcement mat can also be held securely without changing the geometry or the material of the spring element. A spacer accidentally placed on the wrong part of the reinforcement mat can be jerkily pulled back from the bar while overcoming a force, without the spacer being destroyed or the spring being bent in such a way that reuse would no longer be possible. When it is replaced, a completely secure posture of the rod 35 of the reinforcement mat can be achieved.

Landscapes

  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Reinforcement Elements For Buildings (AREA)
  • Building Environments (AREA)
EP86904127A 1985-06-14 1986-06-09 Abstandhalter für bewehrungen in einer schalung Expired - Lifetime EP0227762B1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT86904127T ATE51921T1 (de) 1985-06-14 1986-06-09 Abstandhalter fuer bewehrungen in einer schalung.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3521345 1985-06-14
DE19853521345 DE3521345A1 (de) 1985-06-14 1985-06-14 Abstandhalter fuer bewehrungen in einer schalung

Publications (2)

Publication Number Publication Date
EP0227762A1 EP0227762A1 (de) 1987-07-08
EP0227762B1 true EP0227762B1 (de) 1990-04-11

Family

ID=6273262

Family Applications (1)

Application Number Title Priority Date Filing Date
EP86904127A Expired - Lifetime EP0227762B1 (de) 1985-06-14 1986-06-09 Abstandhalter für bewehrungen in einer schalung

Country Status (7)

Country Link
EP (1) EP0227762B1 (pt)
AU (1) AU6142486A (pt)
DE (2) DE3521345A1 (pt)
ES (1) ES295468Y (pt)
PT (1) PT82750B (pt)
WO (1) WO1986007401A1 (pt)
ZA (1) ZA864429B (pt)

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB941194A (en) * 1960-08-12 1963-11-06 Central Electr Generat Board Improvements in or relating to reinforced concrete members
DE2162173C3 (de) * 1971-12-15 1978-04-27 Reuss Gmbh & Co. Kg, 5600 Wuppertal Halter für die Bewehrung von Betonwänden
DE2424416A1 (de) * 1974-05-20 1975-12-04 Albert Haemmerle Abstandhalter fuer bewehrungseinlagen mit duebel
DE2523530A1 (de) * 1975-05-27 1976-12-16 Ulrich Baumann Abstandhalter
DE7539853U (de) * 1975-12-13 1976-07-15 Exte Extrudertechnik Gmbh, 5921 Wasserfuhr Vorrichtung zum aufhaengen von armierungsmatten
DE2721369A1 (de) * 1977-05-12 1978-11-23 Horst Mueller Abstandshalter fuer das bewehrungsmaterial im stahlbetonbau
DE3140585A1 (de) * 1981-10-13 1983-04-21 Selma 7066 Baltmannsweiler Dreizler "abstandshalter fuer bewehrungsmatten"
FR2554483B1 (fr) * 1983-11-09 1988-06-17 Moreau Pierre Boitier de positionnement d'armatures

Also Published As

Publication number Publication date
PT82750B (pt) 1992-08-31
DE3521345A1 (de) 1986-12-18
DE3670333D1 (de) 1990-05-17
ES295468U (es) 1987-01-01
ES295468Y (es) 1987-09-16
WO1986007401A1 (en) 1986-12-18
PT82750A (de) 1986-07-01
ZA864429B (en) 1987-02-25
DE3521345C2 (pt) 1990-06-28
EP0227762A1 (de) 1987-07-08
AU6142486A (en) 1987-01-07

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