EP0098099A2 - Zweiteiliges Kupplungsstück für Betonarmierungsstäbe - Google Patents

Zweiteiliges Kupplungsstück für Betonarmierungsstäbe Download PDF

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Publication number
EP0098099A2
EP0098099A2 EP83303613A EP83303613A EP0098099A2 EP 0098099 A2 EP0098099 A2 EP 0098099A2 EP 83303613 A EP83303613 A EP 83303613A EP 83303613 A EP83303613 A EP 83303613A EP 0098099 A2 EP0098099 A2 EP 0098099A2
Authority
EP
European Patent Office
Prior art keywords
sleeve
bar
reinforcing bars
threaded
threads
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.)
Withdrawn
Application number
EP83303613A
Other languages
English (en)
French (fr)
Other versions
EP0098099A3 (de
Inventor
John Davison
Steven Holdsworth
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.)
CCL Systems Ltd
Original Assignee
CCL Systems Ltd
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 CCL Systems Ltd filed Critical CCL Systems Ltd
Publication of EP0098099A2 publication Critical patent/EP0098099A2/de
Publication of EP0098099A3 publication Critical patent/EP0098099A3/de
Withdrawn legal-status Critical Current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
    • E04C5/162—Connectors or means for connecting parts for reinforcements
    • E04C5/163—Connectors or means for connecting parts for reinforcements the reinforcements running in one single direction
    • E04C5/165—Coaxial connection by means of sleeves

Definitions

  • the invention relates to the joining of a pair of concrete reinforcing bars or rods or the like, in end-to-end relation.
  • the invention concerns the joining of the bars in end-to-end relation by means of a two part connector in such a way that the tensile strength of the joint is not less than that of the bars or otherwise satisfies the requirements of a building code or regulation.
  • the steps of the method may be performed in any sequence; the threaded parts may be interengaged before both sleeves are swaged on to the bars.
  • the threads are parallel and/or inclined to the major axis of the sleeve, say by about 10 degrees.
  • the threads may be of any suitable shape: threads of V section may be used; in some instances, e.g. for joining bars of relatively larger diameter, it is preferred to use square threads with sloping faces such as ACME threads.
  • the lead of the threads may be greater than the pitch.
  • the lead of the thread may be double, triple or higher; generally a double lead pitch is preferred.
  • the two part connector especially the male part
  • the male part of a material which can both be swaged and threaded without any decrease of strength. Steel is preferred.
  • the male sleeve threaded part to be received in the female sleeve threaded socket one wishes to avoid an increase in the overall diameter of the sleeve assembly. This may involve a reduction in the cross-sectional area of the part of the male sleeve to be threaded.
  • connection of two concrete reinforcing bars arranged in end-to-end relation a first sleeve being -waged to one bar and projecting towards the second bar, the sleeve having a bore with a threaded portion, a second sleeve swaged to the second bar and projecting towards the first, the second sleeve having an externally threaded end portion which is received in the threaded portion of the first sleeve.
  • a two part connector adapted and dimensioned for use in joining together two concrete reinforcing bars, the connector comprising two sleeves, each sleeve having one end portion for swaging to a bar and another end portion for interengagement with the other sleeve, one of the sleeve engaging parts having a male extension and locating nose, the other sleeve having a female socket for reception of the male extension, the interengaging parts being threaded, and preferably the lead of the threads being greater than the pitch thereof.
  • the concrete reinforcing bars range from about 10 mm to 57 mm in diameter.
  • the bars may be of any type and have any rib deformation and are available under a variety of names.
  • the bars B1 and B2 of Figure 1 are to be joined by ...eans of two sleeves S1 and S2.
  • the sleeve S1 has a bore 1 with an unthreaded portion S1A which has been swaged on to the bar B1 and a threaded portion S1B, which has a screw thread 2 at one end, the right, as seen in Figure 1.
  • the sleeve S2 has a portion S2A with an unthreaded bore 3 and the left hand end portion S2B has an internal thread 4, shaped and dimensioned to complement the thread 2 of the sleeve S1.
  • the sleeve S2 is swaged onto the bar B2 and the thread 4 is then threaded into the threaded bore 2 of the sleeve S1.
  • the assembled connection of the sleeves is of substantially uniform external diameter. which is an advantage.
  • coupler S3, S4 two lengths of concrete reinforcing bars B1, B2 are to be joined by couplers S3, S4.
  • One coupler S3, the male comprises a length of steel, originally having a straight sided end portion S3A, which as shown, has been swaged on to the bar B1, a threaded portion S3B, and a nose 7, the portions transist by an integral neck 5.
  • the threaded portion S3B comprises threads 6 which have a multi- lead, ie. a double lead, so that rotation of a nut thereon moves two threads per full rotation.
  • the nose 7 serves for location and alignment into coupler S4.
  • the coupler S4 has an originally straight sided end portion S4A, and a socket end portion S4B which is internally threaded to receive the threaded portion S3B of the male coupler S3.
  • the threads 8 of the socket S4B mate with those 6 of the male coupler.
  • the mouth of the socket S4B has an internal chamfer to initially guide the nose of the male into the socket.
  • one of the couplers S4, S4 is swaged to a bar -1, B2.
  • the male coupler S3 may be swaged to the bar B1 in a fabrication shop.
  • the female coupler is then swaged to the bar B2 and brought to the male coupler or vica versa, and by a few rotations the female is threaded on to the male so joining the bars together. (If the bar B2 is too long to rotate, the couplers may be joined and then the bar B2 may be swaged to the coupler S4).
  • the joint formed meets the appropriate building code requirements. The joint is fast to assemble. It is easy for an operator to see that the couplers are properly'joined, since no full threads will be left exposed.
  • the bars may range from U.S. size no. 4 (12 mm) to U.S. size no. 18 (57 mm).
  • the invention is further illustrated by the following example.
  • Two concrete reinforcing bars of diameter specified in the Table below were joined by appropriately dimensioned connectors according to Figure 2 above.
  • the sleeves were swaged on to the bars and the splice was completed by threading the connector parts together to a hand tight connection and then unthreading the connection one half turn to simulate the situation where such unthreading may be necessary for example to join misaligned bars.
  • the joint was then continuously tensioned under a load until the joint failed.
  • the tensile strength was determined by dividing the maximum load by the nominal reinforcing bar area.

Landscapes

  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Reinforcement Elements For Buildings (AREA)
EP83303613A 1982-06-29 1983-06-23 Zweiteiliges Kupplungsstück für Betonarmierungsstäbe Withdrawn EP0098099A3 (de)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
GB8218813 1982-06-29
GB8218813 1982-06-29
GB8233658 1982-11-25
GB8233658 1982-11-25

Publications (2)

Publication Number Publication Date
EP0098099A2 true EP0098099A2 (de) 1984-01-11
EP0098099A3 EP0098099A3 (de) 1984-03-28

Family

ID=26283222

Family Applications (1)

Application Number Title Priority Date Filing Date
EP83303613A Withdrawn EP0098099A3 (de) 1982-06-29 1983-06-23 Zweiteiliges Kupplungsstück für Betonarmierungsstäbe

Country Status (1)

Country Link
EP (1) EP0098099A3 (de)

Cited By (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3834731A1 (de) * 1988-10-12 1990-04-19 Dyckerhoff & Widmann Ag Vorrichtung zur verankerung oder verbindung von betonbewehrungsstaeben sowie verfahren zum herstellen derselben
GB2265681A (en) * 1992-03-18 1993-10-06 Metal Bond Continuity coupling for reinforcing bars
GB2283031A (en) * 1993-10-20 1995-04-26 Dextra Europe Sa Mechanical connection for concrete reinforcing rods
US5729952A (en) * 1995-12-11 1998-03-24 Dahl; Kjell L. Mechanical rebar couplers
GB2320264A (en) * 1996-12-13 1998-06-17 Tai Hsiu Lan Connecting structure for reinforcement bars
EP0874096A1 (de) * 1997-04-25 1998-10-28 DEXTRA EUROPE : Société Anonyme Maschine und Verfahren zum Quetschen von einer Müffe an einem Betonstahl
WO1999036642A1 (en) * 1998-01-15 1999-07-22 Johnson, Terence, Leslie Connecting elongate members
GB2373808A (en) * 2001-03-27 2002-10-02 Roxbury Ltd Connector
EP1277892A1 (de) * 2001-07-19 2003-01-22 Schöck Entwicklungsgesellschaft mbH Muffenverbindung für Betonstäbe
US7134805B2 (en) * 2004-04-01 2006-11-14 Kwik Slab, Llc Precast concrete slab system and method therefor
CN104533021A (zh) * 2014-12-19 2015-04-22 中冶建筑研究总院有限公司 一种钢筋连接用全灌浆套筒
CN112761308A (zh) * 2021-01-05 2021-05-07 同济大学 一种半螺纹注胶式连接套筒设计方法、螺纹注胶式钢筋连接套筒及其安装方法
EP4015733A1 (de) * 2020-12-18 2022-06-22 Hilti Aktiengesellschaft Koppler

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2124433A1 (de) * 1971-05-17 1972-12-21 Siemens Bauunion GmbH, 8000 München, E Eberspacher Maschinenfabrik, 7311 Nabern Muffenverbindung fur gerippte Beweh rungstahle
FR2248738A5 (en) * 1973-10-17 1975-05-16 Potier Claude Joining of concrete reinforcing rods - involves mild steel screwed adaptor formed onto ridged end of high tensile reinforcing rod
US4074493A (en) * 1975-10-15 1978-02-21 Ccl Systems Limited Connecting reinforcing bars in an access hole
FR2435576A1 (fr) * 1978-09-07 1980-04-04 Lande Irving Procede et dispositif pour la jonction d'aboutement de barres d'armatures a beton
EP0059680B1 (de) * 1981-01-15 1986-04-16 Richmond Screw Anchor Co., Inc. Schraubenförmige Verbindung und Verankerung von Armierungsstäben

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2124433A1 (de) * 1971-05-17 1972-12-21 Siemens Bauunion GmbH, 8000 München, E Eberspacher Maschinenfabrik, 7311 Nabern Muffenverbindung fur gerippte Beweh rungstahle
FR2248738A5 (en) * 1973-10-17 1975-05-16 Potier Claude Joining of concrete reinforcing rods - involves mild steel screwed adaptor formed onto ridged end of high tensile reinforcing rod
US4074493A (en) * 1975-10-15 1978-02-21 Ccl Systems Limited Connecting reinforcing bars in an access hole
FR2435576A1 (fr) * 1978-09-07 1980-04-04 Lande Irving Procede et dispositif pour la jonction d'aboutement de barres d'armatures a beton
EP0059680B1 (de) * 1981-01-15 1986-04-16 Richmond Screw Anchor Co., Inc. Schraubenförmige Verbindung und Verankerung von Armierungsstäben

Cited By (23)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3834731A1 (de) * 1988-10-12 1990-04-19 Dyckerhoff & Widmann Ag Vorrichtung zur verankerung oder verbindung von betonbewehrungsstaeben sowie verfahren zum herstellen derselben
GB2265681A (en) * 1992-03-18 1993-10-06 Metal Bond Continuity coupling for reinforcing bars
GB2265681B (en) * 1992-03-18 1995-08-16 Metal Bond Continuity coupling
GB2283031A (en) * 1993-10-20 1995-04-26 Dextra Europe Sa Mechanical connection for concrete reinforcing rods
FR2711385A1 (fr) * 1993-10-20 1995-04-28 Dextra Europe Sa Liaison mécanique de ronds à béton, dispositif pour la mise en place de cette liaison mécanique et procédé de fixation de liaison mécanique de ronds à béton.
EP0716195A1 (de) * 1993-10-20 1996-06-12 DEXTRA EUROPE : Société Anonyme Mechanische Betonstahlverbindung, Vorrichtung zur Montage derselben und Verfahren zur Befestigung von Betonstählen
GB2283031B (en) * 1993-10-20 1997-03-12 Dextra Europe Sa Method and apparatus for fixing a mechanical connection onto a concrete reinforcing rod
US5729952A (en) * 1995-12-11 1998-03-24 Dahl; Kjell L. Mechanical rebar couplers
GB2320264B (en) * 1996-12-13 2000-12-27 Tai Hsiu Lan Connecting structure for reinforcements
GB2320264A (en) * 1996-12-13 1998-06-17 Tai Hsiu Lan Connecting structure for reinforcement bars
EP0874096A1 (de) * 1997-04-25 1998-10-28 DEXTRA EUROPE : Société Anonyme Maschine und Verfahren zum Quetschen von einer Müffe an einem Betonstahl
WO1999036642A1 (en) * 1998-01-15 1999-07-22 Johnson, Terence, Leslie Connecting elongate members
GB2373808A (en) * 2001-03-27 2002-10-02 Roxbury Ltd Connector
GB2373808B (en) * 2001-03-27 2005-03-30 Roxbury Ltd Improvements in or relating to connectors
US6883998B2 (en) 2001-03-27 2005-04-26 Global Innovations, Llc Connector
EP1277892A1 (de) * 2001-07-19 2003-01-22 Schöck Entwicklungsgesellschaft mbH Muffenverbindung für Betonstäbe
CZ298517B6 (cs) * 2001-07-19 2007-10-24 Schöck Entwicklungsgesellschaft mbH Nátrubkový spoj pro železné tyce do betonu
US7134805B2 (en) * 2004-04-01 2006-11-14 Kwik Slab, Llc Precast concrete slab system and method therefor
US7677832B2 (en) 2004-04-01 2010-03-16 Kwik Slab, Llc Precast concrete slab system and method therefor
CN104533021A (zh) * 2014-12-19 2015-04-22 中冶建筑研究总院有限公司 一种钢筋连接用全灌浆套筒
CN104533021B (zh) * 2014-12-19 2017-04-12 中冶建筑研究总院有限公司 一种钢筋连接用全灌浆套筒
EP4015733A1 (de) * 2020-12-18 2022-06-22 Hilti Aktiengesellschaft Koppler
CN112761308A (zh) * 2021-01-05 2021-05-07 同济大学 一种半螺纹注胶式连接套筒设计方法、螺纹注胶式钢筋连接套筒及其安装方法

Also Published As

Publication number Publication date
EP0098099A3 (de) 1984-03-28

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Inventor name: DAVISON, JOHN

Inventor name: HOLDSWORTH, STEVEN