EP0448488B1 - Verbindung von Betonstäben, Verbindungsmuffe zum Gebrauch für diese Verbindung, und Verfahren für die Herstellung solcher Verbindung - Google Patents

Verbindung von Betonstäben, Verbindungsmuffe zum Gebrauch für diese Verbindung, und Verfahren für die Herstellung solcher Verbindung Download PDF

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Publication number
EP0448488B1
EP0448488B1 EP91440020A EP91440020A EP0448488B1 EP 0448488 B1 EP0448488 B1 EP 0448488B1 EP 91440020 A EP91440020 A EP 91440020A EP 91440020 A EP91440020 A EP 91440020A EP 0448488 B1 EP0448488 B1 EP 0448488B1
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EP
European Patent Office
Prior art keywords
sleeve
internally threaded
concrete
reinforcing rod
sheath
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
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EP91440020A
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English (en)
French (fr)
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EP0448488A1 (de
Inventor
Alain Bernard
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A MURE ETS
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A MURE ETS
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Publication date
Priority claimed from FR9004278A external-priority patent/FR2660000B2/fr
Priority claimed from FR9100595A external-priority patent/FR2671365A1/fr
Application filed by A MURE ETS filed Critical A MURE ETS
Publication of EP0448488A1 publication Critical patent/EP0448488A1/de
Application granted granted Critical
Publication of EP0448488B1 publication Critical patent/EP0448488B1/de
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Expired - Lifetime legal-status Critical Current

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    • 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
    • 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 improvements made to the mechanical connections of concrete reinforcing bars. It relates to a mechanical connection of concrete rods, a connection sleeve allowing the implementation of said connection as well as a method of producing such a connection.
  • document FR-2,626,600 proposes such a mechanical connection of concrete rods, in which the concrete rods to be fixed comprise at least one threaded end intended to be inserted in a threaded connection sleeve in order to allow a connection substantially coaxial of the two concrete bars.
  • the connection is remarkable in that the end of the concrete rod to be bonded is reinforced by a discharge made cold, which makes it possible to increase the tensile strength of said end.
  • the mechanical threaded connection is interesting but in some cases requires the production of a double-threaded sleeve, one on the right, the other on the left, in order to authorize the connection without having to move in rotation. one of the concrete bars.
  • the latter technique uses a sleeve into which the two ends of the concrete rods are threaded, then using a jack and a press, the sleeve is crimped onto the concrete rods.
  • document FR-A-2,207,232 discloses a mechanical connection of concrete bars in which the ends of the concrete bars have ribs or ribs on their outer surface, but not threaded.
  • This connection implements a sleeve made up of at least five members, namely: a sleeve whose ends are threaded, two tightening nuts externally threaded and conical internally, as well as two conical bushings, each in two parts, with opposite slopes, the internal bore corresponds to the ribs or ribs of the ends of the concrete bars.
  • the object of the present invention is to propose improvements to the mechanical connections of concrete reinforcing bars so that they can overcome the aforementioned drawbacks, in particular by allowing the connection of concrete reinforcing bars, positioned in relation to each other, and totally immobile in rotation.
  • One of the aims of the present invention is to propose a mechanical connection of concrete reinforcing bars which in particular take up all the advantages in terms of mechanical resistance of that described in the document FR-2,626,600 and which allows the extension of this technique. to the connection of reinforcement cages made up of several rounds positioned and immobilized between them.
  • the mechanical connection of concrete rods which will find its application in particular in the field of construction of concrete elements, to connect at least two concrete rods in which the concrete rods comprise on the one hand ribs or ribs on their outer surface, and on the other hand each at least one threaded end intended to be inserted into a threaded connection sleeve, which has means for allowing the total threading of the end of the first round to be bonded through the sleeve, and to allow the rotation of the sleeve around the end of said first round, and simultaneously its screwing, directly or indirectly, on the end of the second concrete ring, said ends of said first and second rounds being placed substantially coaxially, substantially end to end, said means being in the form of a sleeve carrying a first thread capable of being screwed, directly or indirectly, on the end of said first round to be bonded and a second tapping capable of being screwed, directly or indirectly, on the end of said second concrete round, said first and second tapping being such that
  • one of the aims of the present invention is to propose a method for producing a mechanical connection of concrete rods, such a mechanical connection, as well as concrete rods and sleeves authorizing it, which will find its application in particular in field of construction of concrete elements or buildings, in which the connection of concrete rods is carried out by threading using tapped connection sleeves, which allow to take advantage of the advantages of the connection object of the main patent, and which combine the advantages of traditional crimp connections without taking up the disadvantages.
  • one of the aims of the improvements of the present invention is to propose a method for producing a mechanical connection of concrete bars, and such a mechanical connection which can be used with a circle already embedded in the concrete, whatever this may be. the configuration of the other round to be connected, the total rotation of the rounds is not necessary.
  • Another object of the present invention is to provide a mechanical connection sleeve for concrete rods which can be applied to the junction of such rods whose ends are threaded while allowing this connection without having to rotate them.
  • the sleeve of the present invention will make it possible to make up for the different levels of the concrete bars constituting these cages as well as certain misalignments of the circles in two successive cages.
  • the present invention allows the realization of a mechanical connection of concrete bars in which the sleeve, via the threaded ends of the concrete bars, transmits the compressive forces.
  • the nets can be placed in the direction of traction.
  • Another object of the present invention is to propose a method for producing mechanical connections of concrete reinforcing bars which is particularly advantageous because it facilitates assembly and makes it possible to avoid having to use crimped sleeves and thus avoids all their drawbacks.
  • the present invention also provides in this regard a connecting sleeve and / or a concrete rod allowing the realization of such a mechanical connection of concrete rods.
  • the connecting sleeve of the invention has a first thread suitable for being screwed, directly or indirectly, on the end of said first concrete reinforcing bar, as well as a second thread suitable for being screwed, directly or indirectly, on the end of said second concrete round to be bonded, said first and second threads being such that on the one hand at least one of the two said first and / or second threads has a possibility of rotation relative to the sleeve, for allow the connection of motionless circles in rotation, and on the other hand that they allow a longitudinal travel to make up for the thread pitch of the two said ends, characterized in that said sleeve is constituted by a single sleeve of conical bore, inside which is provided a single conical sleeve, consisting of at least two half-shells, the outer range of which allows its rotation and its longitudinal locking relative to the sheath, and the inner bore of which has said first and second threads reverse pitch threads.
  • the method for producing a connection of the present invention advantageously, but not necessarily, uses concrete rods, the ends of which are cold pressed and threaded, in order to increase the strength of the mechanical connection.
  • Figure 1 recalls the principle of connection of two concrete bars, according to document FR-2,626,600.
  • Figure 2 schematically shows in section an embodiment of mechanical connection of concrete bars according to the present invention.
  • Figure 3 shows schematically in section an embodiment of mechanical connection of concrete bars according to the present invention.
  • Figure 4 schematically shows in section an embodiment of mechanical connection of concrete bars according to the present invention.
  • FIG. 5 shows a top view of the connection of FIG. 2.
  • Figure 6 shows a bottom view of the link of Figure 2.
  • the invention relates to improvements to the mechanical connections of concrete reinforcing bars.
  • the invention relates to a mechanical connection of concrete rods, a connecting sleeve authorizing the making of said link, as well as a method of making such a link.
  • the present improvements have been developed particularly to avoid rotating the concrete rods to be bonded during the implementation of said connection. However, it may also apply to the production of mechanical connection of concrete rods in which it is possible to rotate said rods.
  • a mechanical connection makes it possible in particular to ensure the fixing of two concrete rods 1 and 2, end to end, substantially coaxially.
  • a threaded connection sleeve 3 is used, capable of receiving respectively on one side the threaded end 4 of a first concrete round 1, and on the other side the end 5 of a second round to concrete 2.
  • connection can be envisaged with concrete rounds whose ends are threaded directly in the nominal section of the round, it may be advantageous to use the teaching described in the aforementioned document FR-2,626,600 to increase the tensile strength of the connection, for the same nominal section of the concrete reinforcing rod to be connected.
  • the ends 4, 5 of the concrete bars 1, 2 are reinforced, so that they are more resistant than the central part of the bar. Thus, during threading, the end is not weakened compared to the nominal diameter of the bar.
  • the discharge end will then have an outside diameter d1 such that the cross section of the concrete round at the level of the thread bottom d2 is at least equal or greater than the nominal section ⁇ , as shown in particular in Figure 1.
  • the present invention makes it possible to provide a solution to these drawbacks, which also makes it possible to avoid having recourse to known and criticizable crimping solutions.
  • the concrete rods 1, 2 have on their outer surface ribs or ribs which thus create protrusions allowing the immobilization in translation of the circle in the concrete when it is embedded in the latter.
  • Such concrete rods are commonly used and sometimes formed or bent but are also used in the production of reinforcement cages consisting of an assembly of concrete rods joined together and immobilized between them by transverse pins. Also, when one wishes to make the connection of two rounds in the extension of one another, it is almost impossible or even impossible to rotate the concrete round considered.
  • the mechanical connection of concrete reinforcing bars presents means for authorizing the total threading of the end 4 of the first round 1 to be bonded through the sleeve 3, and to allow the rotation of the sleeve 3 around the end 4 of said first concrete round 1, and simultaneously its screwing, directly or indirectly, on the end 5 of the second round to concrete 2, said ends 4, 5 of said first and second circles 1, 2 being placed substantially coaxially, substantially end to end, and stationary in rotation, as particularly shown in FIGS. 2 to 6.
  • connection of the present application constitutes an advantage since it requires almost no or even more relative rotary movement of the two circles.
  • the mechanical connection of the present invention and more specifically, said means for authorizing threading, then said rotation, and screwing, are in the form of a sleeve 3 of which various alternative embodiments are illustrated in the figures 2 to 6 carrying a first thread 27; 37, suitable for being screwed, directly or indirectly, on the end 4 of said first round to be bonded 1, and a second thread 28; 38, suitable for being screwed, directly or indirectly, onto the end 5 of said second concrete ring 2.
  • said first 27; 37, and second 28; 38, tappings are designed at the sleeve such that on the one hand at least one of said first and / or second tappings have a possibility of rotation relative to the sleeve 3, and on the other hand that they allow a longitudinal take-up clearance of the thread pitch of the two said ends 4, 5.
  • the discharge of the end 4 of the first concrete rod 1 was carried out so that an M56 thread can be produced, while that a discharge has been made on the second concrete round 2 so that an M64 thread can be made on its end.
  • the diameter d1 of discharge of the end is such that the diameter d2 of the thread bottom of the thread of said end 4 considered is greater than or equal to the diameter ⁇ of the concrete reinforcing bar on ribs or ribs .
  • the threading is carried out on the repressed end 4, but this threading will also be extended on at least part of the ribs or ribs from the end of said first concrete rod 1.
  • the concrete rod will present at its end the thread of the driven end extended by as much on said ribs or ribs.
  • the sleeve 3 is constituted by a tapered bore sleeve 29; 39, inside which is a socket 31; 41 in several conical parts, including the outer range 33; 43 allows its rotation and its longitudinal locking relative to the sleeves 29; 39 and whose inner bore 32, 42 has said first and second threads 27, 28; 37, 38, in this case of reverse step.
  • Such a sleeve includes said means for authorizing the total threading of the end 4 of the first round 1 through the sheath 29; 39 as well as authorizing the rotation of the sheath 29; 39 around the end of said first round 1 and simultaneously its screwing, directly or indirectly, on the end 5 of the second concrete round 2.
  • the ends of the first and second rounds are placed substantially coaxially, substantially butt end, and motionless in rotation.
  • said first and second threads 27, 28; 37, 38 must present a possibility of rotation with respect to the sleeve 3 and allow a longitudinal travel to make up for the thread pitch of the two said ends 4 and 5.
  • the socket 31; 41 conical placed in the corresponding conical bore of the sleeve 29; 39 is made in several parts and is in particular in the form of at least two half-shells 311 and 312; 411, 412, able to be arranged on either side of the ends 4 and 5 of said first and second circles 1, 2 and to enclose them when they are placed in the sheath 29; 39, as shown in particular in FIGS. 5 and 6 in the case of the embodiment of FIG. 2.
  • Said half-shells 311, 312; 411, 412 have an external conical bearing complementary to the bearing 33; 43 of the sheath 28; 39.
  • said half-shells have a 35 tale, 352, 361, 362, 451, 452, 461, 462 thread at the inner part, at each end zone.
  • said first tapping 27; 37 will therefore have a step to the right and will be substantially constituted by a right-hand thread on each of the half-shells 351, 352, 451, 452.
  • the other end 5 of the second concrete ring will have a left-hand thread and said second thread 28; 38 will be substantially formed of a left-hand thread provided on each half-shell 361, 362, 461, 462.
  • Said half-shell taradauges have technical characteristics adapted to the threading of said ends so as to be able to be placed around them and in a way constitute a nut for the threaded ends.
  • the two half-shells 311, 312, 411, 412 are spaced by a gap 53, 57 and positioned by take-up shims 54; 55; 56 authorizing the tightening of the threads of the two half-shells on the threads of the ends of the rounds.
  • a step to the right and a step to the left makes it possible to increase or decrease the distance between the threads of the first end and of the second end and whatever their synchronization.
  • a half-shell 311, 411 is placed on the ends 4 and 5 and the half-shell is rotated around the ends to find the position in which the threads 351 ; 451 coincide with those 27; 37 of the end 4 and the threads 361; 461 coincide with those 28; 38 from end 5.
  • the two half-shells 311, 312 also have an external thread 40 capable of cooperating with a corresponding thread provided in the bore of the sleeve 29.
  • the sleeve 31 and the sleeve 29 have independent gripping means, in particular constituted by gripping points of any type of key, these gripping points being able to be constituted by orifices or flats.
  • the blocking of the half-shells 411, 412 in the sheath 39 is authorized by the presence of a nut 50, able to cooperate with a corresponding thread 51 provided externally to the sheath 39 which during its screwing will act on the half-shells 411 and 422 to push them towards the inside of the sheath 39 and thus constitute a system with clamping corners.

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  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Reinforcement Elements For Buildings (AREA)
  • Joining Of Building Structures In Genera (AREA)
  • Mutual Connection Of Rods And Tubes (AREA)
  • Forms Removed On Construction Sites Or Auxiliary Members Thereof (AREA)

Claims (9)

  1. Mechanische Verbindung für Betonrundeisen, die ihre Anwendung nämlich auf dem Gebiet der Fertigung von Betonteilen finden wird, zum Verbinden von wenigstens zwei Betonrundeisen (1, 2), bei der die Betonrundeisen (1, 2), einerseits, Anhöhen oder Rippen an deren Außenfläche umfassen und, andererseits, je wenigstens ein Ende mit Außengewinde (4, 5), um in eine Verbindungsmuffe mit Innengewinden hineingeführt zu werden, die Mittel umfaßt, um die vollständige Hineinführung des Endes (4) des ersten, zu verbindenden Rundeisens (1) durch die Muffe (3) zu erlauben und um die Drehung der Muffe (3) um das Ende (4) des genannten ersten Rundeisens (1) und gleichzeitig das direkte oder indirekte Festschrauben desselben an das Ende (5) des zweiten Betonrundeisens (2) zu erlauben, wobei die genannten Enden (4, 5) der genannten ersten und zweiten Rundeisen (1, 2) im wesentlichen koaxial, im wesentlichen aneinanderstoßend gelegt werden, wobei die genannten Mittel als eine Verbindungsmuffe (3) ausgestaltet sind, die ein erstes Innengewinde (27; 37), das geeignet ist, direkt oder indirekt auf das Ende (4) des genannten, zu verbindenden ersten Rundeisens geschraubt zu werden, und ein zweites Innengewinde (28; 38), das geeignet ist, direkt oder indirekt auf das Ende (5) des genannten zweiten Betonrundeisens (2) geschraubt zu werden, trägt und die ersten und zweiten Innengewinden derartig sind, daß, einerseits, wenigstens eines der beiden genannten, ersten und/oder zweiten Innengewinden eine Drehfähigkeit bezüglich der Muffe (3) aufweist, um die Verbindung von drehfesten Rundeisen zu erlauben, und sie, andererseits, einen seitlichen Freiraum zum Nachstellen der Gewindesteigung der beiden genannten Enden (4, 5) erlauben, dadurch gekennzeichnet, daß die genannte Muffe (3) aus einem einzigen Futter (29; 39) mit kegelförmiger Bohrung, innerhalb dessen eine einzige, kegelförmige Hülse (31; 41) vorgesehen ist, die aus wenigstens zwei Halbschalen (31₁, 31₂; 41₁, 41₂) besteht, deren Außenlager (33; 43) deren Drehung und Festklemmung in Längsrichtung bezüglich des Futters (29; 39) erlaubt und deren Innenbohrung (32; 42) die genannten ersten Innengewinden (27; 37) und zweiten Innengewinden (28; 38) umgekehrter Steigung aufweist.
  2. Verbindung nach Anspruch 1, dadurch gekennzeichnet, daß die Enden (4, 5) der ersten und zweiten Rundeisen (1, 2) kaltgestaucht sind, wobei der Stauchungsdurchmesser d₁ des Endes (4) des ersten Rundeisens (1) derartig ist, daß der Gewindekerndurchmesser d₂ des Außengewindes des genannten Endes (4) größer als oder gleich des Außendurchmessers φ des Betonrundeisens an den Anhöhen oder Rippen ist, und der Stauchungsdurchmesser d₁ des Endes (5) des zweiten Rundeisens (2) derartig ist, daß der Gewindekerndurchmesser d₂ des Außengewindes des genannten Endes (5) größer als oder gleich des Außendurchmessers φ des Betonrundeisens (2) an den Anhöhen oder Rippen ist.
  3. Verbindung nach Anspruch 1, dadurch gekennzeichnet, daß die genannte Hülse (31; 41) und das Futter (29; 39) unabhängige Greifmittel aufweisen, die das Spannen der Verbindung erlauben.
  4. Verbindungsmuffe für Betonrundeisen, die die Anwendung der mechanischen Verbindung nach Anspruch 1 erlaubt, die Mittel aufweist, um die vollständige Hineinführung des Endes (4) des ersten Rundeisens (1) durch die Muffe (3) zu erlauben sowie um die Drehung der Muffe (3) um das Ende (4) des genannten ersten Rundeisens und gleichzeitig das direkte oder indirekte Festschrauben desselben an das Ende (5) des zweiten Betonrundeisens (2) zu erlauben, wobei die genannten Enden (4,5) der genannten ersten und zweiten Rundeisen (1, 2) im wesentlichen koaxial, im wesentlichen aneinanderstoßend gelegt werden, und die ein erstes Innengewinde (27; 37), das geeignet ist, direkt oder indirekt auf das Ende (4) des genannten ersten Betonrundeisens (1) geschraubt zu werden, sowie ein zweites Innengewinde (28; 38), das geeignet ist, direkt oder indirekt auf das Ende (5) des genannten zweiten, zu verbindenden Betonrundeisens (2) geschraubt zu werden, trägt, wobei die ersten und zweiten Innengewinden (27, 28; 37, 38) derartig sind, daß, einerseits, wenigstens eines der beiden genannten, ersten und/oder zweiten Innengewinden eine Drehfähigkeit bezüglich der Muffe (3) aufweist, um die Verbindung von drehfesten Rundeisen zu erlauben, und sie, andererseits, einen seitlichen Freiraum zum Nachstellen der Gewindesteigung der beiden genannten Enden (4, 5) erlauben, dadurch gekennzeichnet, daß die genannte Muffe (3) aus einem einzigen Futter (29; 39) mit kegelförmiger Bohrung, innerhalb dessen eine einzige, kegelförmige Hülse (31; 41) vorgesehen ist, die aus wenigstens zwei Halbschalen (31₁, 31₂; 41₁, 41₂) besteht, deren Außenlager (33; 43) deren Drehung und Festklemmung in Längsrichtung bezüglich des Futters (29; 39) erlaubt und deren Innenbohrung (32; 42) die genannten ersten Innengewinden (27; 37) und zweiten Innengewinden (28; 38) umgekehrter Steigung aufweist.
  5. Muffe nach Anspruch 4, dadurch gekennzeichnet, daß die genannten zwei Halbschalen (31₁, 31₂; 41₁, 41₂) geeignet sind, beidseits der Enden (4, 5) der genannten ersten und zweiten Rundeisen (1, 2) angeordnet zu werden und diese zu umschließen, wenn sie im Futter (29; 39) gesetzt sind, deren Lager demjenigen (33; 43) des Futters ergänzend ist, und die an jedem äußersten Bereich ein Rechtsinnengewinde (35₁, 35₂; 45₁, 45₂) und ein Linksinnengewinde (36₁, 36₂; 46₁, 46₂) aufweist, das dem Außengewinde (27, 28; 37, 38) der genannten Enden (4, 5) entspricht, oder umgekehrt.
  6. Muffe nach Anspruch 5, dadurch gekennzeichnet, daß die Halbschalen (31₁, 31₂; 41₁, 41₂) durch einen Zwischenraum (53; 57) von einander beabstandet und mittels Nachstellkeile (54; 55; 56) positioniert sind, die das Spannen der Gewinden der beiden Halbschalen auf die Gewinden der Enden der Rundeisen erlauben.
  7. Muffe nach Anspruch 6, dadurch gekennzeichnet, daß das Futter (29; 39) ein Innengewinde (40) oder ein Außengewinde (51) aufweist, das geeignet ist, direkt oder indirekt mit den Halbschalen (31₁, 31₂; 41₁, 41₂) zusammenzuwirken, um das Festklemmen der Halbschalen im Futter und anschließend deren Dreh- und Translationsfestmachen zu erlauben.
  8. Verfahren zum Herstellen einer mechanischen Verbindung nach Anspruch 1, zum Verbinden von wenigstens zwei Betonrundeisen (1, 2), bei der die Betonrundeisen (1, 2), einerseits, Anhöhen (6) oder Rippen an deren Außenfläche und, andererseits, je wenigstens ein Ende mit Außengewinde (4, 5) umfassen, das dazu bestimmt ist, in eine Verbindungsmuffe (3) mit Innengewinden hineingeführt zu werden, dadurch gekennzeichnet, daß:
    - das Ende (4) des ersten, zu verbindenden Betonrundeisens (1) vollständig durch die Muffe (3) geführt wird,
    - die drehfesten Enden (4, 5) der genannten ersten und zweiten Rundeisen (1, 2) im wesentlichen koaxial, im wesentlichen aneinanderstoßend gelegt werden,
    - die beiden Betonrundeisen (1, 2) durch Drehen der Muffe (3) um das Ende (4) des genannten ersten Rundeisens (1) verbunden werden und die Muffe (3) direkt oder indirekt auf das Ende (5) des anderen, zu verbindenden Rundeisens (2) geschraubt wird, wobei die genannte Muffe ein erstes Innengewinde (27; 37) und ein zweites Innengewinde (28; 38) aufweist, die dem Außengewinde der Enden (4, 5) der genannten ersten und zweiten Rundeisen (1, 2) entsprechen, wobei die genannte Muffe (3) aus einem einzigen Futter (29; 39) mit kegelförmiger Bohrung besteht, innerhalb dessen eine einzige, kegelförmige Hülse (31; 41) vorgesehen ist, die aus wenigstens zwei Halbschalen (31₁, 31₂; 41₁, 41₂) besteht, deren Außenlager (33; 43) deren Drehung und Festklemmung in Längsrichtung bezüglich des Futters (29; 39) erlaubt und deren Innenbohrung (32; 42) die genannten ersten Innengewinden (27; 37) und zweiten Innengewinden (28; 38) umgekehrter Steigung aufweist.
  9. Verfahren nach Anspruch 8, dadurch gekennzeichnet, daß die Positionierung der genannten Enden der ersten und zweiten Betonrundeisen durch Drehen wenigstens eines der beiden genannten ersten und/oder zweiten Innengewinden eingestellt und das genannte Innengewinde beim Festschrauben der Verbindung in der Muffe festgeklemmt wird.
EP91440020A 1990-03-23 1991-03-15 Verbindung von Betonstäben, Verbindungsmuffe zum Gebrauch für diese Verbindung, und Verfahren für die Herstellung solcher Verbindung Expired - Lifetime EP0448488B1 (de)

Applications Claiming Priority (5)

Application Number Priority Date Filing Date Title
FR9004278 1990-03-23
FR9004278A FR2660000B2 (fr) 1988-02-03 1990-03-23 Perfectionnements apportes a la liaison mecanique de ronds a beton, procede de realisation d'une telle liaison ainsi que rond a beton permettant la mise en oeuvre de la dite liaison.
FR9100595A FR2671365A1 (fr) 1991-01-04 1991-01-04 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.
FR9100595 1991-01-04
CA002065203A CA2065203A1 (en) 1990-03-23 1992-04-06 Mechanical connection for reinforcing rods, connecting sleeve permitting the implementation of the said connection, reinforcing rod permitting the implementation of the said connection, and process for producing such a connection

Publications (2)

Publication Number Publication Date
EP0448488A1 EP0448488A1 (de) 1991-09-25
EP0448488B1 true EP0448488B1 (de) 1995-04-19

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EP91440020A Expired - Lifetime EP0448488B1 (de) 1990-03-23 1991-03-15 Verbindung von Betonstäben, Verbindungsmuffe zum Gebrauch für diese Verbindung, und Verfahren für die Herstellung solcher Verbindung

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EP (1) EP0448488B1 (de)
AT (1) ATE121487T1 (de)
CA (1) CA2065203A1 (de)
DE (1) DE69108969D1 (de)

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DE69108969D1 (de) 1995-05-24
EP0448488A1 (de) 1991-09-25
CA2065203A1 (en) 1993-10-07
ATE121487T1 (de) 1995-05-15

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