EP0604349A1 - Mechanische Betonstahlverbindung - Google Patents

Mechanische Betonstahlverbindung Download PDF

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Publication number
EP0604349A1
EP0604349A1 EP93490012A EP93490012A EP0604349A1 EP 0604349 A1 EP0604349 A1 EP 0604349A1 EP 93490012 A EP93490012 A EP 93490012A EP 93490012 A EP93490012 A EP 93490012A EP 0604349 A1 EP0604349 A1 EP 0604349A1
Authority
EP
European Patent Office
Prior art keywords
shells
sleeve
mechanical connection
concrete
connection 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.)
Withdrawn
Application number
EP93490012A
Other languages
English (en)
French (fr)
Inventor
Alain Bernard
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.)
A MURE ETS
Original Assignee
A MURE ETS
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 A MURE ETS filed Critical A MURE ETS
Publication of EP0604349A1 publication Critical patent/EP0604349A1/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Withdrawn legal-status Critical Current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
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
    • E04C5/00—Reinforcing elements, e.g. for concrete; Auxiliary elements therefor
    • E04C5/08—Members specially adapted to be used in prestressed constructions
    • E04C5/12—Anchoring devices

Definitions

  • the invention relates to a mechanical connection of concrete rods. More specifically, it aims at improvements made to the mechanical connection of rounds, the ends of which are threaded and connected by a tapped connection sleeve.
  • Two techniques are generally used, the first consisting in crimping a sleeve around the ends of the concrete rods provided for this purpose, the second consisting in providing a thread at the ends of the concrete rods in order to be able to connect them by screwing a sleeve on them this.
  • the crimping technique can be used because the sleeve remains static in this operation. However, this technique is less and less used because it presents high risks of slipping during use, due to the crimping which is difficult to control. In addition, it requires very specific tools.
  • the sleeve consists of a sheath, of closed and annular profile, at the bore of which there is provided, directly or indirectly, on the one hand a first thread capable of being screwed onto the end of the first round to bond, and secondly a second thread capable of being screwed onto the end of the second concrete ring.
  • these threads are provided such that they have a possibility of rotation relative to the sleeve in order to provide for a catching up of the thread pitch of the two ends, when the sleeve is screwed simultaneously on the two ends of the rods to be connected which are stationary in rotation. .
  • this mechanical connection must transmit the tensile forces conveyed by the concrete reinforcing bars, and a bad positioning or a coincidence of one or more elements of the connection generates a concentration of stresses which will result early or late, when the circles are loaded, by a break in the link.
  • the purpose of the present invention is to provide a mechanical connection of concrete reinforcing bars which will find its application in particular in the field of construction of concrete elements, and which makes it possible to overcome the drawbacks of existing systems by authorizing, by virtue of its structure , a very good distribution of the different forces across the link.
  • One of the aims of the present invention is to propose a mechanical connection of concrete reinforcing bars, of a simple structure, that is to say requiring no assembly and high precision machining, and the implementation of which artwork is facilitated on the site.
  • One of the aims of the mechanical connection of the present invention lies in the fact of proposing a connection technique by screwing which can be implemented on concrete rods which are completely immobile in rotation, with ease and without risk of concentration of untimely stresses, allowing constant reliability.
  • the mechanical connection of concrete rods which will find its application in the field of construction of concrete elements, in which the concrete rods each comprise at least one threaded end, intended to be inserted in a sleeve.
  • the sleeve made up of at least two complementary half-shells, bringing to the minus the said first and second threads, and two clamping elements, capable of joining the two half-shells, to grip the ends of the said first and second rounds to be bonded.
  • Figure 1 shows schematically, in perspective, a mechanical connection of concrete reinforcing bars according to the invention.
  • Figure 2 shows a sectional view of the connection shown in the figure along axis II-II.
  • Figure 3 shows a sectional view of the connection shown in Figure 1 along the axis III-III.
  • FIG. 4 shows an exploded view of the various elements of the connection shown in FIG. 1.
  • FIG. 5 shows a view of the connection according to arrow V in FIG. 2.
  • FIG. 6 shows a view of the connection according to arrow VI of FIG. 2.
  • the invention relates to a mechanical connection of concrete rods, which will find its application in particular in the field of construction of concrete elements.
  • the invention relates to improvements made to the mechanical connections of concrete rods, in which the concrete rods each comprise at least one threaded end, intended to be inserted in a connecting sleeve.
  • FIG. 1 schematically shows such a mechanical connection 1 of concrete reinforcing bars 2, 3 joined by means of the connection sleeve 4.
  • connection sleeve 4 The structure of this connection is shown in more detail in FIGS. 2 to 6.
  • the concrete rods 2, 3 each have at least one threaded end, respectively 5, 6, intended to be inserted in the connection sleeve 4.
  • the sleeve has at least a first thread 7 and a second thread 8 corresponding respectively to the threads 9, 10 of the ends 5, 6 of the first and second circles to be bonded.
  • the sleeve 4 consists on the one hand of complementary shells and on the other hand of clamping elements making it possible to enclose the ends of the rounds to be bonded.
  • the sleeve 4 consists of at least two complementary half-shells 11, 12, carrying at least the said first 7 and second 8 threads.
  • the sleeve comprises at least two clamping elements 13, 14 able to join the two half-shells 11, 12 around the ends 5, 6 of the said first and second rounds 2, 3 to be bonded to grip them and allow blocking. of the link.
  • Each of the half-shells 11, 12 has internally, on each side, that is to say on either side where the threaded ends 5, 9 will be placed; 6, 10 of circles 2; 3 to be bonded, a threaded bore, respectively marked globally 7 and 8, and for each half-shell 71, 81; 72, 82, of opposite pitch, corresponding to the threads 9, 10 of said ends 5, 6 of the first and second circles 2, 3.
  • each of the half-shells 11, 12 on the ends 5, 6 of the circles placed substantially coaxially, substantially end to end and in particular stationary in rotation.
  • each of the half-shells 11, 12 has externally on each side, that is to say on either side where the threaded ends of the circles 2 will be placed; 3, first of all, a tapered surface 15, 16, identified in the drawings for each half-shell 151, 161; 152, 162.
  • These ranges are provided such that they cooperate with the clamping elements 13, 14 to allow the blocking of the half-shells on the ends of the rounds to be bonded.
  • the clamping element 13, 14 has internally a corresponding conical bore 17; 18.
  • the clamping element 13, 14 may be in the form of an annular cylindrical ring, of closed profile, the inner surface of which is cut into a cone with the same characteristics as those 15, 16 of the half-shells 11 , 12.
  • each conical bearing 151, 161; 152, 162 is extended by a threaded cylindrical seat, marked respectively 19 1, 20 1; 192, 202.
  • the ring has internally a thread 21; 22 extending said conical bore 17; 18, corresponding to those 19; 20 carried externally by the two half-shells.
  • claw keys bearing on the outside of the ring may be fitted on the outside with gripping means, not shown in the figures, such as a hexagon or dishes allowing the taking of a suitable key.
  • the sleeve 4 also has means for taking up the play, for each concrete round 2, 3 to be bonded, between the threads 9, 10 of the ends 5? 6 and the threads 7, 8 of the sleeve, and in particular of the half-shells 11, 12.
  • a first separation 29 exists by the very fact of the presence of the two half-shells 11, 12.
  • each half-shell 11, 12 has a longitudinal cut 30-31, opening on one of its sides, as shown particularly in Figure 4.
  • the cut opens two parts 23, 24 are created; 27, 28 disjoint, that is to say separating the mass of the half-shell in two, while on the other side 25; 26 the half-shell remains whole.
  • the head-to-tail mounting of the notches 30, 31 also constitutes a locating means for mounting, taking account of the reverse steps.

Landscapes

  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Reinforcement Elements For Buildings (AREA)
  • Mutual Connection Of Rods And Tubes (AREA)
EP93490012A 1992-10-29 1993-06-18 Mechanische Betonstahlverbindung Withdrawn EP0604349A1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR9213259 1992-10-29
FR9213259A FR2697555B1 (fr) 1992-10-29 1992-10-29 Liaison mécanique de ronds à béton.

Publications (1)

Publication Number Publication Date
EP0604349A1 true EP0604349A1 (de) 1994-06-29

Family

ID=9435210

Family Applications (1)

Application Number Title Priority Date Filing Date
EP93490012A Withdrawn EP0604349A1 (de) 1992-10-29 1993-06-18 Mechanische Betonstahlverbindung

Country Status (3)

Country Link
EP (1) EP0604349A1 (de)
CA (1) CA2100118A1 (de)
FR (1) FR2697555B1 (de)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19816194C1 (de) * 1998-04-14 1999-11-25 Deutsch Zentr Luft & Raumfahrt Verbindungsvorrichtung für Gewindestiftenden
AU5366100A (en) * 1999-12-08 2001-06-14 Suntisuk Dr Plooksawasdi Self coupling steel bar connections
US7624556B2 (en) 2003-11-25 2009-12-01 Bbv Vorspanntechnik Gmbh Threaded deformed reinforcing bar and method for making the bar
WO2016034779A1 (fr) * 2014-09-05 2016-03-10 Guerbet Systeme de maintien d'un adaptateur sur un cone d'extremite d'une seringue, et ensemble comprenant un tel systeme de maintien

Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3253332A (en) * 1963-05-14 1966-05-31 Howlett Machine Works Connecting means and method for reinforcing rods
US3488903A (en) * 1968-05-20 1970-01-13 Cable Covers Ltd Positive clamping and anchoring means for elongated metal members
DE1575269A1 (de) * 1967-06-15 1970-01-15 Rehm Gallus Kraft- und formschluessige Verbindung zwischen einem stabfoermigen Stahl und einem aufgepressten Verbindungselement
DE1675007A1 (de) * 1968-03-13 1970-12-03 Rehm Prof Dr Ing Gallus Kraft- und formschluessige Verbindungsstelle zwischen einem stabfoermigen Stahl und einem aufgepressten Verbindungselement
DE1659247A1 (de) * 1967-04-24 1971-02-11 Manfred Trautmann Kupplung fuer eine zug- und druckfeste Verbindung von stumpf gestossenen Bewchrungsstaeben
FR2207232A1 (de) * 1972-11-22 1974-06-14 Pelissier Yvan
EP0057292A1 (de) * 1981-01-20 1982-08-11 Wahman Lorentz Verfahren zum Verbinden von wenigstens zwei Last übertragenden Teilen durch eine Pressverbindung und Verbindung zur Durchführung des Verfahrens
DE3131078C1 (de) * 1981-08-06 1982-10-28 Dyckerhoff & Widmann AG, 8000 München "Verankerungs- oder Verbindungskörper für Stahlstäbe mit Oberflächenprofilierungen in Form von Rippen"
DE3210007A1 (de) * 1982-03-19 1984-01-26 Jan Dipl.-Ing. 7032 Sindelfingen Smitka Ankerkoerper und stossverbindungen fuer profilstahl im stahlbetonbau durch mehrteilige segmente mit ausnuetzung der kegelwirkung
FR2671365A1 (fr) * 1991-01-04 1992-07-10 Techniport Sa Liaison mecanique de ronds a beton, manchon de liaison permettant la mise en óoeuvre de la dite liaison, et procede de realisation d'une telle liaison.

Patent Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3253332A (en) * 1963-05-14 1966-05-31 Howlett Machine Works Connecting means and method for reinforcing rods
DE1659247A1 (de) * 1967-04-24 1971-02-11 Manfred Trautmann Kupplung fuer eine zug- und druckfeste Verbindung von stumpf gestossenen Bewchrungsstaeben
DE1575269A1 (de) * 1967-06-15 1970-01-15 Rehm Gallus Kraft- und formschluessige Verbindung zwischen einem stabfoermigen Stahl und einem aufgepressten Verbindungselement
DE1675007A1 (de) * 1968-03-13 1970-12-03 Rehm Prof Dr Ing Gallus Kraft- und formschluessige Verbindungsstelle zwischen einem stabfoermigen Stahl und einem aufgepressten Verbindungselement
US3488903A (en) * 1968-05-20 1970-01-13 Cable Covers Ltd Positive clamping and anchoring means for elongated metal members
FR2207232A1 (de) * 1972-11-22 1974-06-14 Pelissier Yvan
EP0057292A1 (de) * 1981-01-20 1982-08-11 Wahman Lorentz Verfahren zum Verbinden von wenigstens zwei Last übertragenden Teilen durch eine Pressverbindung und Verbindung zur Durchführung des Verfahrens
DE3131078C1 (de) * 1981-08-06 1982-10-28 Dyckerhoff & Widmann AG, 8000 München "Verankerungs- oder Verbindungskörper für Stahlstäbe mit Oberflächenprofilierungen in Form von Rippen"
DE3210007A1 (de) * 1982-03-19 1984-01-26 Jan Dipl.-Ing. 7032 Sindelfingen Smitka Ankerkoerper und stossverbindungen fuer profilstahl im stahlbetonbau durch mehrteilige segmente mit ausnuetzung der kegelwirkung
FR2671365A1 (fr) * 1991-01-04 1992-07-10 Techniport Sa Liaison mecanique de ronds a beton, manchon de liaison permettant la mise en óoeuvre de la dite liaison, et procede de realisation d'une telle liaison.

Also Published As

Publication number Publication date
CA2100118A1 (en) 1994-04-30
FR2697555B1 (fr) 1995-01-06
FR2697555A1 (fr) 1994-05-06

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