EP0633356B1 - Joint dowel - Google Patents

Joint dowel Download PDF

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Publication number
EP0633356B1
EP0633356B1 EP94110477A EP94110477A EP0633356B1 EP 0633356 B1 EP0633356 B1 EP 0633356B1 EP 94110477 A EP94110477 A EP 94110477A EP 94110477 A EP94110477 A EP 94110477A EP 0633356 B1 EP0633356 B1 EP 0633356B1
Authority
EP
European Patent Office
Prior art keywords
joint
joint dowel
plastic sleeve
base element
concrete
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
EP94110477A
Other languages
German (de)
French (fr)
Other versions
EP0633356A1 (en
Inventor
Engelbert Unter
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.)
Fliesen & Fussbodentechnik E Unger GmbH
Original Assignee
Fliesen & Fussbodentechnik E Unger 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 Fliesen & Fussbodentechnik E Unger GmbH filed Critical Fliesen & Fussbodentechnik E Unger GmbH
Publication of EP0633356A1 publication Critical patent/EP0633356A1/en
Application granted granted Critical
Publication of EP0633356B1 publication Critical patent/EP0633356B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • E—FIXED CONSTRUCTIONS
    • E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01C—CONSTRUCTION OF, OR SURFACES FOR, ROADS, SPORTS GROUNDS, OR THE LIKE; MACHINES OR AUXILIARY TOOLS FOR CONSTRUCTION OR REPAIR
    • E01C11/00—Details of pavings
    • E01C11/02—Arrangement or construction of joints; Methods of making joints; Packing for joints
    • E01C11/04—Arrangement or construction of joints; Methods of making joints; Packing for joints for cement concrete paving
    • E01C11/14—Dowel assembly ; Design or construction of reinforcements in the area of joints

Definitions

  • the invention relates to a joint dowel as a connection for expansion, cutting, movement or day joints, in particular for concrete ceilings or concrete surfaces, screeds or self-leveling screeds, consisting of a base element made of round metal, in particular round steel, and a plastic casing.
  • a shear reinforcement is already known as prior art, which is used in particular for screeds, concrete ceilings and concrete surfaces (DE-A-35 29 287) and has a joint dowel.
  • the basic element of the dowel is covered with a separating layer, in particular with a plastic sleeve, which is separated several times.
  • the shear reinforcement is also equipped with two height-adjustable plastic feet for better placement.
  • the present invention has for its object to design a joint dowel of the type mentioned, which compensates for the shrinkage and expansion of concrete or screed or liquid screed.
  • the plastic sleeve is designed as a closed unit longer in the axial direction and larger in diameter than the basic element and that the plastic casing has at least one crumple zone.
  • only one crumple zone can be provided in the central region of the joint anchor.
  • the plastic casing can protrude the round metal in its end regions by the same amount. This amount can be between 5 mm and 20 mm.
  • the round metal can have a diameter between 5 mm and 35 mm and a length between 0.25 m and 1 m.
  • the plastic casing can be closed in the end region by a welding point.
  • joint 2 In the figures 1 and 2, two concrete parts 7 and 8 are shown, between which there is a joint 2.
  • This joint can be, for example, a screed / concrete expansion, cut, movement or daily joint.
  • the inventive joint anchor 1 which essentially consists of a base element 3 made of round metal, in particular round steel.
  • This basic element 3 is covered by a plastic cover 4, which is designed as a closed unit.
  • the plastic sleeve 4 is longer in the axial direction and larger in diameter than the base element 3.
  • the plastic casing 4 has only a single crumple zone 5 in the central region M of the joint 2 or the joint anchor 1. This crumple zone 5 has been formed by folding the plastic.
  • the joint 2 is reduced to the joint 2 '.
  • the plastic casing 4 of the joint anchor 1 according to the invention is compressed in the area of the crumple zone 5 and forms the crumple zone 5 '.
  • the amount B in the end regions of the plastic cover 4 can be between 5 mm and 20 mm.
  • the round steel can have a diameter between 5 mm and 35 mm and a length between 0.25 m and 1 m.
  • the joint dowel 1 according to the invention can be installed wherever there are joints, for example on motorways, runways or other construction areas in which concrete ceilings or concrete surfaces, screed or liquid screed are used. Since, according to new knowledge, the shrinkage of such concrete elements is smaller than the expansion, this expansion is easily absorbed with the aid of the joint anchor 1 according to the invention.

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  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Joining Of Building Structures In Genera (AREA)
  • Road Paving Structures (AREA)
  • Road Paving Machines (AREA)
  • Bridges Or Land Bridges (AREA)
  • Floor Finish (AREA)
  • Building Environments (AREA)

Abstract

The invention relates to a joint dowel, as a connection for expansion, cutting, movement or day's work joints, in particular for concrete pavings (floors) or concrete surfaces, screeds or flowing screeds, comprising a base element made of round metal, in particular round steel, and a plastics casing, the plastics casing (4) being constructed as a closed unit and in such a way as to be longer in the axial direction and greater in diameter than the base element (3), and the plastics casing (4) having at least one deformable zone (5). <IMAGE>

Description

Die Erfindung bezieht sich auf einen Fugendübel als Verbindung für Dehn-, Schnitt-, Bewegungs- oder Tagesfugen, insbesondere für Betondecken oder Betonflächen, Estriche oder Fließestriche, bestehend aus einem Grundelement aus Rundmetall, insbesondere Rundstahl, und einer Kunststoffhülle.The invention relates to a joint dowel as a connection for expansion, cutting, movement or day joints, in particular for concrete ceilings or concrete surfaces, screeds or self-leveling screeds, consisting of a base element made of round metal, in particular round steel, and a plastic casing.

Als Stand der Technik ist bereits eine Scherbewehrung bekannt, welche insbesondere für Estriche, Betondecken und Betonflächen dient (DE-A-35 29 287) und einen Fugendübel aufweist. Hierbei ist bei dem Dübel das Grundelement mit einer Trennschicht, insbesondere mit einer Kunststoffhülle überzogen, welche mehrfach in sich getrennt ist. Die Scherbewehrung ist weiterhin zur besseren Plazierung mit zwei in der Höhe verstellbaren Kunststoffüßen ausgestattet.A shear reinforcement is already known as prior art, which is used in particular for screeds, concrete ceilings and concrete surfaces (DE-A-35 29 287) and has a joint dowel. In this case, the basic element of the dowel is covered with a separating layer, in particular with a plastic sleeve, which is separated several times. The shear reinforcement is also equipped with two height-adjustable plastic feet for better placement.

Diese bekannte Konstruktion arbeitet dann zufriedenstellend, wenn ein Schrumpfen, beispielsweise der Estriche, auftritt.This known construction works satisfactorily when shrinkage, for example the screed, occurs.

Weiterer, an sich bekannter Stand der Technik, geht stets davon aus, daß das Schwinden des Betons der maßgebliche Faktor ist, welcher bei der Gestaltung eines Fugendübels berücksichtigt werden muß.Another state of the art known per se always assumes that the shrinkage of the concrete is the decisive factor which must be taken into account when designing a joint anchor.

Demgegenüber liegt der vorliegenden Erfindung die Aufgabe zugrunde, einen Fugendübel der eingangs genannten Art zu gestalten, welcher das Schwinden und die Ausdehnung von Beton bzw. von Estrichen oder Fließestrichen ausgleicht.In contrast, the present invention has for its object to design a joint dowel of the type mentioned, which compensates for the shrinkage and expansion of concrete or screed or liquid screed.

Diese Aufgabe wird erfindungsgemäß dadurch gelöst, daß die Kunststoffhülle als geschlossene Einheit in Axialrichtung länger und im Durchmesser größer als das Grundelement ausgebildet ist und daß die Kunststoffhülle mindestens eine Knautschzone aufweist.This object is achieved in that the plastic sleeve is designed as a closed unit longer in the axial direction and larger in diameter than the basic element and that the plastic casing has at least one crumple zone.

Es hat sich neuerdings herausgestellt, daß bei Betondecken oder Betonflächen weniger das Schwinden von erheblichem Einfluß ist, sondern daß die Ausdehnung ein wichtigerer Faktor ist. Diese Ausdehnung wird durch die einfach gestaltete Konfiguration des erfindungsgemäßen Fugendübels voll aufgefangen.It has recently been found that the shrinkage is less of a significant influence in concrete ceilings or concrete surfaces, but that the expansion is a more important factor. This expansion is fully absorbed by the simple configuration of the joint anchor according to the invention.

In weiterer Ausgestaltung der Erfindung kann nur eine Knautschzone im mittleren Bereich des Fugendübels vorgesehen sein. Hierbei kann die Kunststoffhülle das Rundmetall in dessen Endbereichen um den gleichen Betrag überragen. Dieser Betrag kann zwischen 5 mm und 20 mm liegen. Weiterhin kann das Rundmetall einen Durchmesser zwischen 5 mm und 35 mm und eine Länge zwischen 0,25 m und 1 m betragen.In a further embodiment of the invention, only one crumple zone can be provided in the central region of the joint anchor. In this case, the plastic casing can protrude the round metal in its end regions by the same amount. This amount can be between 5 mm and 20 mm. Furthermore, the round metal can have a diameter between 5 mm and 35 mm and a length between 0.25 m and 1 m.

In weiterer Ausgestaltung der Erfindung kann die Kunststoffhülle jeweils im Endbereich durch eine Schweißstelle verschlossen sein.In a further embodiment of the invention, the plastic casing can be closed in the end region by a welding point.

Die Erfindung wird nachfolgend anhand eines in der Zeichnung dargestellten Ausführungsbeispiels näher beschrieben. In der Zeichnung zeigen:

  • Fig. 1 eine Seitenansicht eines Fugendübels zwischen zwei geschnittenen Betonteilen;
  • Fig. 2 die gleiche Ansicht wie nach Fig. 1 mit den Betonteilen in Ausdehnung.
The invention is described below with reference to an embodiment shown in the drawing. The drawing shows:
  • Figure 1 is a side view of a joint anchor between two cut concrete parts.
  • Fig. 2 shows the same view as in Fig. 1 with the concrete parts in expansion.

In den Figuren 1 und 2 sind zwei Betonteile 7 und 8 dargestellt, zwischen welchen eine Fuge 2 vorliegt. Diese Fuge kann beispielsweise eine Estrich/Betondehn-, -schnitt-, -bewegungs- oder eine -tagesfuge sein.In the figures 1 and 2, two concrete parts 7 and 8 are shown, between which there is a joint 2. This joint can be, for example, a screed / concrete expansion, cut, movement or daily joint.

Im Bereich dieser Fuge 2 befindet sich der erfindungsgemäße Fugendübel 1, welcher im wesentlichen aus einem Grundelement 3 aus Rundmetall, insbesondere Rundstahl, besteht. Dieses Grundelement 3 wird von einer Kunststoffhülle 4 überdeckt, welche als geschlossene Einheit ausgebildet ist. Wie ersichtlich, ist die Kunststoffhülle 4 in axialer Richtung länger und im Durchmesser größer als das Grundelement 3.In the area of this joint 2 is the inventive joint anchor 1, which essentially consists of a base element 3 made of round metal, in particular round steel. This basic element 3 is covered by a plastic cover 4, which is designed as a closed unit. As can be seen, the plastic sleeve 4 is longer in the axial direction and larger in diameter than the base element 3.

Aus Fig. 1 geht hervor, daß die Kunststoffhülle 4 den Rundstahl 3 in dessen Endbereichen um den gleichen Betrag B überragt. Diese Endbereiche der Kunststoffhülle 4 sind jeweils durch eine Schweißstelle 6 verschlossen.From Fig. 1 it can be seen that the plastic sleeve 4 projects over the round steel 3 in its end regions by the same amount B. These end regions of the plastic sleeve 4 are each closed by a welding point 6.

Die Kunststoffhülle 4 weist im mittleren Bereich M der Fuge 2 bzw. des Fugendübels 1 nur eine einzige Knautschzone 5 auf. Diese Knautschzone 5 ist durch Faltung des Kunststoffs gebildet worden.The plastic casing 4 has only a single crumple zone 5 in the central region M of the joint 2 or the joint anchor 1. This crumple zone 5 has been formed by folding the plastic.

Findet nun zwischen den beiden Betonteilen 7 und 8 gemäß Fig. 2 eine Ausdehnung statt, so verkleinert sich die Fuge 2 zu der Fuge 2'. Die Kunststoffhülle 4 des erfindungsgemäßen Fugendübels 1 wird im Bereich der Knautschzone 5 zusammengedrückt und bildet die Knautschzone 5'. Durch diese Konfiguration des erfindungsgemäßen Fugendübels 1 wird damit auf einfache Weise der Ausdehnung der beiden Betonteile 7 und 8 und der damit verbundenen Verringerung der Fuge 2 Rechnung getragen.If there is now an expansion between the two concrete parts 7 and 8 according to FIG. 2, the joint 2 is reduced to the joint 2 '. The plastic casing 4 of the joint anchor 1 according to the invention is compressed in the area of the crumple zone 5 and forms the crumple zone 5 '. With this configuration of the joint anchor 1 according to the invention, the expansion of the two concrete parts 7 and 8 and the associated reduction in the joint 2 are taken into account in a simple manner.

Der Betrag B in den Endbereichen der Kunststoffhülle 4 kann zwischen 5 mm und 20 mm betragen. Der Rundstahl kann einen Durchmesser zwischen 5 mm und 35 mm besitzen und eine Länge zwischen 0,25 m und 1 m aufweisen.The amount B in the end regions of the plastic cover 4 can be between 5 mm and 20 mm. The round steel can have a diameter between 5 mm and 35 mm and a length between 0.25 m and 1 m.

Wie aus einem Vergleich zwischen Fig. 1 und 2 hervorgeht, verringert sich der Betrag B im Endbereich der Kunststoffhülle 4 zu dem Betrag B', und zwar als Folge der Ausdehnung der beiden Betonteile 7 und 8, welche durch die Knautschzone 5 aufgefangen und zur Knautschzone 5' zusammengedrückt wird.As can be seen from a comparison between FIGS. 1 and 2, the amount B in the end region of the plastic casing 4 decreases to the amount B ', as a result of the expansion of the two concrete parts 7 and 8, which are caught by the crumple zone 5 and to the crumple zone 5 'is compressed.

Der erfindungsgemäße Fugendübel 1 kann überall dort eingebaut werden, wo Fugen entstehen, beispielsweise bei Autobahnen, Start- oder Landebahnen oder anderen Baubereichen, bei welchen Betondecken oder Betonflächen, Estrich oder Fließestrich eingesetzt werden. Da nach neuer Erkenntnis das Schwindmaß derartiger Betonelemente kleiner als die Ausdehnung ist, wird auf einfache Weise diese Ausdehnung mit Hilfe des erfindungsgemäßen Fugendübels 1 aufgefangen.The joint dowel 1 according to the invention can be installed wherever there are joints, for example on motorways, runways or other construction areas in which concrete ceilings or concrete surfaces, screed or liquid screed are used. Since, according to new knowledge, the shrinkage of such concrete elements is smaller than the expansion, this expansion is easily absorbed with the aid of the joint anchor 1 according to the invention.

Claims (7)

  1. Joint dowel (1), as a connector of expansion, cutting or moving or day joints, in particular for concrete ceilings or concrete surfaces, plasters or tile plasters,
    comprising a base element of round metal (3), in particular round steel, and a plastic sleeve (4), characterised in that
    the plastic sleeve (4) is as a sealed unit longer in the axial direction and larger in diameter that the base element (3), and
    the plastic sleeve (4) comprises at least one crumple zone (5).
  2. Joint dowel according to Claim 1, characterized in that only one crumple zone (5) in the central area (M) on the joint dowel (1) is provided.
  3. Joint dowel according to Claim 1, characterized in that the plastic sleeve (4) protrudes in its end areas to an identical extent (B) over the base element (3).
  4. Joint dowel according to Claim 3, characterized in that the amount (B) is between 5mm and 20mm.
  5. Joint dowel according to one of the above Claims, characterized in that the base element (3) has a diameter between 5mm and 35mm and a length between 0.25 and 1 metre.
  6. Joint dowel according to one of the above Claims, characterized in that the plastic sleeve (4) is sealed in a respective end region by a welding point (6).
  7. Joint dowel according to one of the above Claims, characterized in that the crumple zone (5) is formed by folding of the plastic sleeve (4).
EP94110477A 1993-07-07 1994-07-06 Joint dowel Expired - Lifetime EP0633356B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE9310129U 1993-07-07
DE9310129U DE9310129U1 (en) 1993-07-07 1993-07-07 Joint dowels

Publications (2)

Publication Number Publication Date
EP0633356A1 EP0633356A1 (en) 1995-01-11
EP0633356B1 true EP0633356B1 (en) 1996-04-17

Family

ID=6895303

Family Applications (1)

Application Number Title Priority Date Filing Date
EP94110477A Expired - Lifetime EP0633356B1 (en) 1993-07-07 1994-07-06 Joint dowel

Country Status (3)

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EP (1) EP0633356B1 (en)
AT (1) ATE136961T1 (en)
DE (2) DE9310129U1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1343944A2 (en) 2000-12-12 2003-09-17 Karl-Heinz Ernst Method and device for linking screed areas separated by a joint

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT406602B (en) 1998-10-23 2000-07-25 Tci Tech Chemische Industriebe JOINT DOWEL
DE29921629U1 (en) * 1998-12-11 2000-03-23 Teerbau Gmbh Strassenbau Dowel setting device, dowels and spacers for dowels for concrete pavements as well as concrete pavement reinforced with dowels
DE10063747A1 (en) * 2000-12-21 2002-06-27 Schoeck Bauteile Gmbh Structural element used as heat insulation comprises force-transferring reinforcing element made of plastic and surrounded on all sides by closed corrosion-protection coating

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2095061A (en) * 1936-03-16 1937-10-05 Henry A Taubensee Joint for concrete slabs
US4341487A (en) * 1978-08-16 1982-07-27 Borivoj Nemecek Connector
US4648739A (en) * 1985-03-20 1987-03-10 Thomsen Bernard D Load transfer cell assembly for concrete pavement transverse joints
DE3539287A1 (en) * 1985-11-06 1987-09-17 Engelhard Unger Shear reinforcement for structural parts, in particular for screeds, concrete floors and concrete surfaces
CH679166A5 (en) * 1989-06-26 1991-12-31 Ancotech Ag

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1343944A2 (en) 2000-12-12 2003-09-17 Karl-Heinz Ernst Method and device for linking screed areas separated by a joint

Also Published As

Publication number Publication date
DE59400208D1 (en) 1996-05-23
DE9310129U1 (en) 1993-09-16
EP0633356A1 (en) 1995-01-11
ATE136961T1 (en) 1996-05-15

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