EP0077952A1 - Procédé d'assemblage par adhérence d'aciers à béton dans la construction en béton armé - Google Patents

Procédé d'assemblage par adhérence d'aciers à béton dans la construction en béton armé Download PDF

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Publication number
EP0077952A1
EP0077952A1 EP82109318A EP82109318A EP0077952A1 EP 0077952 A1 EP0077952 A1 EP 0077952A1 EP 82109318 A EP82109318 A EP 82109318A EP 82109318 A EP82109318 A EP 82109318A EP 0077952 A1 EP0077952 A1 EP 0077952A1
Authority
EP
European Patent Office
Prior art keywords
thread
rolled
sleeve
area
rod
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.)
Granted
Application number
EP82109318A
Other languages
German (de)
English (en)
Other versions
EP0077952B1 (fr
Inventor
Rolf Dipl.-Ing. Knodel
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.)
Wayss and Freytag AG
Original Assignee
Wayss and Freytag AG
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 Wayss and Freytag AG filed Critical Wayss and Freytag AG
Publication of EP0077952A1 publication Critical patent/EP0077952A1/fr
Application granted granted Critical
Publication of EP0077952B1 publication Critical patent/EP0077952B1/fr
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
    • E04C5/16—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 a method for the positive connection of reinforcing bars in reinforced concrete construction by means of a screw sleeve and bars with rod end threads with a partially conical core in the outlet area, as well as the rolled thread which is being tapped, the sleeve being screwed onto the bar by force such that a plastic deformation in the tapering thread area entry.
  • the rods are peeled at their ends with a constant diameter before the thread is rolled up. In line with the thread that is running out, the thread tips are therefore in the roll not fully trained. However, this means that the first threads, which are of paramount importance, are only partially engaged (Fig. 2).
  • the invention makes it its task to design the thread runout of the rod end thread in such a way that even the critical first threads come fully into engagement with the sleeve immediately at the beginning of the rolled thread, so that steel with unfavorable flow behavior can also be connected without reducing the load-bearing capacity.
  • the object is achieved by the method described in claim 1. Due to the conical peeling in the thread run-out, more material remains in this area, so that the thread tips are fully formed during the subsequent rolling process.
  • the conically widened diameter of the rolled thread in the rod end area brings an additional improvement in the load-bearing capacity if, in the subsequent work step, the sleeve is unscrewed and deformed in the threads of the outlet area.
  • a roller tool for producing the rod end thread according to the invention is proposed.
  • the measure of the taper of the outside diameter of the rod end thread is given by the elasticity of the sleeve is limited. As a rule, the sleeve will have a constant thread.
  • the load-bearing capacity of the socket connection can be further improved if the taper of the thread ends is further enlarged and the socket thread is also conical at the ends.
  • the gain in load-bearing capacity must, however, be bought with a more complex production of the socket thread in this solution.
  • the sleeve thread may only have a conicity that is all the less less than the sleeve's elasticity allows without tearing.
  • the invention opens up many possible variations in adapting the screwed socket connection to the properties of the available steel grades from an economic point of view.
  • the invention is illustrated by 5 figures.

Landscapes

  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Reinforcement Elements For Buildings (AREA)
EP19820109318 1981-10-22 1982-10-08 Procédé d'assemblage par adhérence d'aciers à béton dans la construction en béton armé Expired EP0077952B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3141928 1981-10-22
DE19813141928 DE3141928C2 (de) 1981-10-22 1981-10-22 Bewehrungsstab für Stahlbeton

Publications (2)

Publication Number Publication Date
EP0077952A1 true EP0077952A1 (fr) 1983-05-04
EP0077952B1 EP0077952B1 (fr) 1986-09-03

Family

ID=6144643

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19820109318 Expired EP0077952B1 (fr) 1981-10-22 1982-10-08 Procédé d'assemblage par adhérence d'aciers à béton dans la construction en béton armé

Country Status (2)

Country Link
EP (1) EP0077952B1 (fr)
DE (1) DE3141928C2 (fr)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0282889A3 (fr) * 1987-03-18 1990-07-04 Erico International Corporation Laminage de filets sur l'extrémité conique d'une barre
EP0867578A1 (fr) * 1997-03-27 1998-09-30 Barfix Bermuda Ltd Procédé de raccordement d'un raccord à une barre d'armature et un tel raccord
EP1389658A1 (fr) 2002-08-13 2004-02-18 HALFEN GmbH & CO. Kommanditgesellschaft Joint à filet de vis pour barres de transmission de force
CN110016995A (zh) * 2019-04-28 2019-07-16 山东大学 一种用于钢筋连接的滑动式三瓣套筒

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19753755C2 (de) * 1997-12-04 2001-07-05 Deha Ankersysteme Schlupfarme Schraubverbindung für Stäbe im Bauwesen mit geometrisch definierter Konterung

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1659264A1 (de) * 1967-09-12 1971-01-14 Wayss & Freytag Ag Stossverbindung von Bewehrungsstaeben in Stahlbetonbauten
DE1784382A1 (de) * 1968-08-02 1971-08-05 Wayss & Freytag Ag Verfahren zum Herstellen einer Stossverbindung von Bewehrungsstaeben in Stahlbetonbauten

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB672946A (en) * 1949-07-22 1952-05-28 Mccalls Macalloy Ltd Nuts, bolts and tie bars
DE1194552B (de) * 1961-06-26 1965-06-10 Beton & Monierbau Ag Zugbolzenmuffe zum Anschluss an walzprofilierte Vorspannstaebe mit kreisrundem Kernquerschnitt

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1659264A1 (de) * 1967-09-12 1971-01-14 Wayss & Freytag Ag Stossverbindung von Bewehrungsstaeben in Stahlbetonbauten
DE1784382A1 (de) * 1968-08-02 1971-08-05 Wayss & Freytag Ag Verfahren zum Herstellen einer Stossverbindung von Bewehrungsstaeben in Stahlbetonbauten

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0282889A3 (fr) * 1987-03-18 1990-07-04 Erico International Corporation Laminage de filets sur l'extrémité conique d'une barre
EP0867578A1 (fr) * 1997-03-27 1998-09-30 Barfix Bermuda Ltd Procédé de raccordement d'un raccord à une barre d'armature et un tel raccord
WO1998044215A1 (fr) * 1997-03-27 1998-10-08 Barfix Bermuda Ltd. Procede et dispositif servant a relier des objets entre eux
EP1389658A1 (fr) 2002-08-13 2004-02-18 HALFEN GmbH & CO. Kommanditgesellschaft Joint à filet de vis pour barres de transmission de force
CN110016995A (zh) * 2019-04-28 2019-07-16 山东大学 一种用于钢筋连接的滑动式三瓣套筒

Also Published As

Publication number Publication date
EP0077952B1 (fr) 1986-09-03
DE3141928A1 (de) 1983-05-11
DE3141928C2 (de) 1984-12-20

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