EP0448488A1 - 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
EP0448488A1
EP0448488A1 EP91440020A EP91440020A EP0448488A1 EP 0448488 A1 EP0448488 A1 EP 0448488A1 EP 91440020 A EP91440020 A EP 91440020A EP 91440020 A EP91440020 A EP 91440020A EP 0448488 A1 EP0448488 A1 EP 0448488A1
Authority
EP
European Patent Office
Prior art keywords
sleeve
concrete
ribs
thread
round
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
EP91440020A
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English (en)
French (fr)
Other versions
EP0448488B1 (de
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
Techniport SA
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
Priority claimed from FR9004278A external-priority patent/FR2660000B2/fr
Priority claimed from FR9100595A external-priority patent/FR2671365A1/fr
Application filed by Techniport SA, A MURE ETS filed Critical Techniport SA
Publication of EP0448488A1 publication Critical patent/EP0448488A1/de
Application granted granted Critical
Publication of EP0448488B1 publication Critical patent/EP0448488B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • E04C5/08—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, a concrete ring allowing the implementation of said connection as well as a method of producing such a connection.
  • the 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 tapped connection sleeve in order to allow a connection substantially coaxial of the two concrete bars.
  • the connection is remarkable by the fact 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.
  • the object of the present invention is to propose improvements to the mechanical connections of concrete rods so that they can overcome the aforementioned drawbacks, in particular by allowing the connection of concrete rods, positioned in relation to each other, and almost and / or completely immobile in rotation.
  • One of the aims of the present invention is to propose a mechanical connection of concrete reinforcing bars which in particular takes up all the advantages in terms of mechanical resistance of that described in 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, for connecting 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 in a threaded connection sleeve, is characterized in that it 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 concrete round, and simultaneously its screwing, directly or indirectly, on the end of the second round to concrete, said ends of said first and second circles being placed substantially coaxially, substantially end to end, and immobile or almost immobile in rotation.
  • 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 threaded 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 provide a method of making a mechanical connection of concrete bars, and such a mechanical connection which can be used with a circle already embedded in the concrete, whatever or the configuration of the other round to be connected, total rotation of the rounds is not necessary.
  • the mechanical connection of concrete rods which will find its application in particular in the field of construction of concrete elements, in which the concrete rods to be fixed comprise on the one hand ribs or ribs on their outer surface and, on the other hand, an end intended to be inserted in a threaded connecting sleeve, is characterized in that at least one of the ends of the concrete reinforcing rod, is reinforced by discharge, is provided such that the said sleeve can be completely screwed onto it, despite the presence of the said ribs or ribs.
  • the method for producing mechanical connections of concrete reinforcing bars according to the present invention is characterized, in a first mode of realization, by the fact that the delivery is carried out such that its diameter is greater than or equal to the diameter of the end of the concrete reinforcing bar on rib or rib.
  • the threading of the driven end (s) is carried out and the threading is also carried out on at least part of the ribs or ribs of the end of the round.
  • the concrete reinforcing bar obtained by implementing the method of the present invention, is remarkable either by the fact that the discharge diameter of the end is such that the diameter of the cast iron of the thread of said end considered is greater than or equal to the outside diameter of the concrete reinforcing bar on ribs or ribs, or by the fact that the threading of the driven end is extended by as much on said ribs or ribs.
  • 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 rods constituting these cages as well as certain misalignment of 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 provide a process for producing mechanical connections for concrete reinforcing bars which is particularly advantageous since 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 round to be bonded, and a second thread, suitable for being screwed, directly or indirectly, on the end of said second round to be bonded, said first and second tapping being such that on the one hand, at least one of said first and / or second tapping has the possibility of rotation relative to the sleeve, and on the other hand, that they allow a longitudinal adjustment of the thread pitch of the two said ends.
  • said sleeve is constituted by a sheath enclosing a socket allowing said rotation and said longitudinal movement.
  • the sleeve is constituted by a conical bore sleeve inside which is provided a conical sleeve in several parts allowing said rotation and said longitudinal movement.
  • the bonding method of the present invention advantageously, but not necessarily, uses concrete rods whose ends 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 rods, according to document FR-2,626,600.
  • FIGS. 2a to 2c show, in perspective, the different stages of the method of connecting concrete bars, according to a first embodiment of the invention, in which the end of a circle is bent.
  • Figure 3 shows a second embodiment of the mechanical connection of concrete reinforcing bars according to the present invention.
  • FIG. 4 shows the threaded connection sleeve designed for the connection as shown in FIG. 3.
  • FIGS. 5a, b, c, d show the different stages of the implementation of the connection of concrete bars as illustrated in FIG. 3.
  • Figure 6 schematically shows in section a third embodiment of mechanical connection of concrete bars according to the present invention.
  • Figure 7 schematically shows in section a fourth embodiment of mechanical connection of concrete bars according to the present invention.
  • Figure 8 schematically shows in section a fifth embodiment of mechanical connection of concrete bars according to the present invention.
  • FIG. 9 schematically shows in section a sixth embodiment of the mechanical connection of concrete bars according to the present invention.
  • FIGS. 10a and 10c illustrate the method of connecting two reinforcement cages, each consisting of concrete rods positioned between them and immobilized in rotation, in its different stages, using the connection principle as illustrated in FIG. 6.
  • Figure 11 shows a top view of the Figure 7 link.
  • Figure 12 shows a bottom view of the link of Figure 8.
  • 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 realization of said connection, a concrete rod allowing the implementation of said connection, as well as a method of producing such a bond.
  • 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 rounds.
  • 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 ring 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 rods 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 d dia reports such that the cross-section of the concrete reinforcing bar at the bottom of the thread d2 is at least equal to or greater than the nominal section ⁇ , as shown particularly in Figure 1
  • the ends 4 and 5 respectively of the concrete rods 1 and 2 to be bonded are cold discharged, then the respective threading of the ends of the ends 4 and 5 is carried out, according to completely traditional threading techniques. , in particular by cutting.
  • 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 6 or ribs which thus create protrusions allowing the immobilization in translation of the bottom in the concrete when it is drowned in this last.
  • 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 rods presents means for authorizing the total threading of the end 4 of the first circle 1 to be connected through the sleeve 3, and for authorizing 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 concrete round 2, said ends 4, 5 of said first and second rounds 1, 2 being placed substantially coaxially, substantially end to end, and stationary in rotation, as shown in particular in FIGS. 2 to 12, as well as the various successive stages of production of the connection shown in FIGS. 2, 5 and 10.
  • connection of the present application constitutes an advantage because it requires almost no or even more relative rotary movement of the two circles.
  • first 7; 17; 27; 37, and second 8; 18; 28; 38 threads are designed at the sleeve such that on the one hand at least one of the said first and / or second threads has a possibility of rotation relative to the sleeve 3, and on the other hand that they allow a longitudinal movement of catch up for threading the two said ends 4, 5.
  • Such a technique is advantageous since it is possible to drown the concrete rod beforehand in its solid block, then protect the thread for example using a protective metal screw cap.
  • the delivery diameter of the end d1 is such that the thread bottom diameter d2 of the thread of said end considered is greater than or equal to the outside diameter ⁇ c of the round to concrete on ribs or ribs.
  • the discharge will be carried out such that it is greater than or equal to said diameter ⁇ c of the end of the circle on ribs or ribs.
  • the threading of the driven end (s) will be carried out, but this threading will also be extended on at least part of the ribs 6 or ribs of the end of said round.
  • the concrete reinforcing rod will present at its end the said threading of the pushed back end extended on the said ribs 6 or ribs.
  • the connecting sleeve 3 can have only one type of thread, in particular on the right, without being obliged to have reverse threads, to avoid turning the concrete rods during their bond.
  • said first tapping 7 and second tapping 8 will be identical and confused.
  • a discharge of diameter d1 of 36 mm was carried out with a fine pitch of 300 on a length of approximately 35 mm, then the thread has been extended by approximately 140 mm to level the ribs 6 of the round, and allow the integral screwing on the round of a connection sleeve of approximately 175 mm of tapped length M36 in pitch end of 300.
  • Figures 3 and 6 show a second type of connection in which said sleeve 3 is constituted by a sleeve 9; 19, the bore of which has a first cylindrical part 10; 20 threaded constituting said second thread 8; 18 as well as a second part 14; 24 trapping a socket 11; 21.
  • the diameter d11 of discharge of the end is such that the diameter d21 of the thread bottom of the thread of said end 4 considered is greater than or equal to the diameter ⁇ C1 of the concrete reinforcing bar on ribs 6 or ribs. This is illustrated in particular in Figure 5a.
  • the thread is made on the driven end 4, but this thread will also be extended on at least part of the ribs 6 or ribs of the end of said first concrete 1.
  • the concrete reinforcing rod will present at its end the thread of the driven end extended as much on said ribs 6 or ribs.
  • said cylindrical part 10 is extended by a truncated cone 14, the large base 15 of which is directed towards the cylindrical part 10.
  • the sleeve 11 is for its part provided to cooperate with the truncated cone 14 of the sleeve, that is to say it has at least one frusto-conical part 13, of conicity corresponding to that 14 of the sleeve 9, and whose large base 16 is of dimension less than that 15 of the sleeve 9.
  • the sleeve must be able to be threaded completely over the end 4 of the first concrete ring 1 to be bonded.
  • the sleeve 11 carries a thread 7 corresponding to the diameter d21 of the thread bottom of the thread of the end 4 of the first round to be bonded, this diameter d21 being, let us recall it, be greater than or equal to the outside diameter ⁇ C1 of the concrete round 1 on ribs or ribs, or else the threading of the driven end 4 of the first round 1 is extended accordingly, depending on the sleeve, on said ribs or ribs 6.
  • said second thread 8 must at least be equal to or greater than the first thread 7.
  • the thread of the end 4 of the first concrete round 1 is equal to or less than that of the end 5 of the second concrete round 2 (d21 ⁇ d22).
  • the threading and / or the discharge of the end 5 of the second round 2 is greater than that of the end 4 of said first round 1 as shown particularly Figure 4.
  • the cold rods 1, 2 are cold pressed back, advantageously over a length corresponding to that of the thread.
  • either the end 4 is discharged such that it is greater than or equal to the diameter outside ⁇ c1 on ribs or ribs, or the thread of the end 4 extended over at least part of the ribs 6 or ribs of said end 4.
  • the relative mobility between the sleeve 11 and the sleeve 9 will allow the adaptation and the automatic synchronization of the thread pitches while maintaining the two ends 4 and 5 end to end, and this without necessarily requiring rotation, even slight, of the two rounds relative to each other.
  • said socket 11 and the sheath 9 advantageously have independent gripping means allowing the connection to be tightened.
  • connection will allow a connection of reinforcement cages in which the circles are immobilized in rotation with one another in the same cage and the rotation of which is impossible from one cage relative to the other.
  • the delivery 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 ring 2 so that an M64 thread can be made on its end.
  • FIG. 6 shows a third embodiment close to that illustrated in FIG. 4.
  • the sleeve 3 consists of a sheath 19 having two cylindrical bearing surfaces marked 20 and 23. More precisely, said tapped cylindrical part 20 is extended by a second smooth cylindrical part 23 defining a shoulder 25 in the sheath 19 and whose external dimensions coincide with those of said socket 21 to allow said rotation.
  • said first cylindrical part 20 comprises an removable inner ring 26, immobilizable in the sleeve, and more precisely in the sleeve 19, the dimensions of which are such that they allow inclusion in the sheath 19, in particular at the level of the bearing surface 23, of the said socket 21.
  • the positioning of said ends of the first and second concrete rods is adjusted by rotation of at least one of the two said first and / or second internal threads and the said internal thread is blocked in the sleeve when the connection is screwed.
  • FIGS. 10a to 10c illustrate the process for producing a connection which has just been described and in particular show the possibility of making up for gaps between concrete bars at different levels.
  • FIG. 10c shows the connection of the two concrete rods 1 "and 2" in which the ends 4 "and 5" are in abutment against one another. On the other hand, more significant differences between the ends are shown for connections 1-2 and 1′-2 ′.
  • the shoulder 25 advantageously provide a rounded shape allowing good distribution of forces.
  • the contact of the sleeve 21 on the intermediate ring 26 ensures the resumption of the compression forces and allows the blocking of the sleeve.
  • a lock nut 52 can be provided, in particular illustrated in FIG. 6, which will allow the threads to be placed in the direction of traction, by tightening the lock nut, to transmit the forces. compression.
  • connection to allow the tightening of the various elements, the connection, and more precisely the sleeve 19 and the intermediate ring 26 have independent gripping means allowing the connection to be tightened.
  • the arrangement as shown in FIG. 6 advantageously makes it possible to make up for a certain angle between two connecting rounds and a certain axial movement of the ends of these two rounds.
  • the sleeve 21 by providing for the diameter of the sleeve 21 less than the diameter of the internal thread of the sleeve 19, and moreover as a function of the respective lengths of the sleeve 21 and of the said internal thread, if there is an axial offset in the rounds 1 ⁇ and 2 ⁇ for example, when we go down the sleeve 19 ⁇ and when we start to screw it on the ring 26 ⁇ , the sleeve 21 ⁇ will be in the part 20 "of the sleeve, and we will start the screwing with an axial offset of the rounds 1 ⁇ and 2 ⁇ .
  • the sleeve 21" goes come to position in the part 24 "of the sleeve while catching up with the angular offset and replacing, in particular by deformation of the round, the round 1 ⁇ and the round 2 ⁇ in alignment as shown in FIG. 10c.
  • the present invention provides other embodiments of mechanical connection, based on the same principle, illustrated in FIGS. 7, 8, 9.
  • the sleeve 3 consists of a conical bore sleeve 29; 39, inside which a socket 31 is provided; 41 in several conical parts, including the outer surface 33; 43 allows its rotation and its longitudinal locking relative to the sleeves 29; 39 and whose internal bore 32; 42 shows the said first and second threads 27, 38; 37, 38, in this case of reverse step.
  • Such a sleeve comprises 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 end at the end, and motionless in rotation.
  • said first and second internal threads 27, 28; 37, 38 must have a possibility of rotation relative to the sleeve 3 and allow a longitudinal displacement of 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 rounds 1, 2 and to enclose them when they are placed in the sheath 29; 39, as shown in particular in FIGS. 11 and 12 in the case of the embodiment of FIG. 7.
  • the said half shells 311, 312; 411, 412 have a conical outer surface complementary to the range 33; 43 of the sheath 29; 39.
  • said half-shells have a 35 presentlye, 352, 361, 362 internal thread at each inner zone; 451, 452, 461, 462.
  • 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 tapping 28; 38 will be substantially formed of a left-hand thread provided on each half shell 361, 362; 461, 462.
  • Said tappings of the half shells have technical characteristics adapted to the threading of said ends in order 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 apart 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.
  • 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 sheath 29 have independent gripping means, in particular constituted by grip points of any type of key, these grip points being able to be constituted by orifices or flats.
  • the blocking of the half shells 411, 412 in the sleeve 39 is authorized by the presence of a nut 50, able to cooperate with a corresponding tapping 51 provided externally on the sleeve 39 which when it is screwed will come 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)
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
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.
FR9004278 1990-03-23
FR9100595 1991-01-04
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.
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 true EP0448488A1 (de) 1991-09-25
EP0448488B1 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

Country Status (4)

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

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2689156A1 (fr) * 1992-03-30 1993-10-01 Techniport Sa Procédé de réalisation d'une liaison mécanique de ronds à béton, liaison obtenue par le procédé, rond à béton autorisant la mise en Óoeuvre du dit procédé, et installation de préparation de ronds à béton.
WO1993024257A1 (en) * 1992-06-01 1993-12-09 Tartuntamarkkinointi Oy Method of making a threaded connection for reinforcing bars
NL1010661C2 (nl) * 1998-11-26 2000-06-19 Novitec International B V Wapeningsstelsel alsmede betonconstructie.
US7624556B2 (en) 2003-11-25 2009-12-01 Bbv Vorspanntechnik Gmbh Threaded deformed reinforcing bar and method for making the bar
CN109339346A (zh) * 2018-11-22 2019-02-15 王蒙蒙 一种建筑工程临时支护用连接件及其连接方法
CN113513123A (zh) * 2021-07-28 2021-10-19 河南省第一建筑工程集团有限责任公司 低温环境下预制装配式竖向构件灌浆蓄温养护施工方法

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3117859B1 (de) 2009-10-09 2020-07-15 Philip Morris Products S.a.s. Aerosolgenerator mit docht aus mehreren bestandteilen

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US3415552A (en) * 1966-11-29 1968-12-10 Howlett Machine Works Splicing metallic reinforcing rods with a threaded coupling sleeve
DE1784807A1 (de) * 1968-09-20 1971-11-11 Strabag Bau Ag Stossverbindung fuer Bewehrungseinlagen von vorgefertigten Bauwerksteilen
FR2166317A1 (de) * 1971-12-10 1973-08-17 Inst Politehnic Iasi
FR2207232A1 (de) * 1972-11-22 1974-06-14 Pelissier Yvan
US4362423A (en) * 1980-09-08 1982-12-07 Williams Form Engineering Corporation Coupling for coil-thread rebar
DE3122874C1 (de) * 1981-06-10 1983-01-13 Walter 4000 Düsseldorf Hoff Vorrichtung zum Verbinden von Bewehrungsstäben im Bauwesen
NL8301358A (nl) * 1983-04-18 1984-11-16 Erico Europa Schroefkoppeling voor betonijzer.
FR2558904A1 (fr) * 1984-01-31 1985-08-02 Techniport Sarl Organe de liaison de deux tirants
WO1986004384A1 (en) * 1985-01-25 1986-07-31 Titan Mining And Engineering Pty. Ltd. Deformed bar for adhesion and applying tension
DE8803649U1 (de) * 1988-03-17 1988-06-09 Behrens, Josef, Dipl.-Ing., 2842 Lohne, De
FR2626600A1 (fr) * 1988-02-03 1989-08-04 Techniport Sa Liaison mecanique de ronds a beton
WO1990008867A1 (en) * 1989-01-26 1990-08-09 Square Grip Limited Concrete reinforcement bars and couplings therebetween

Patent Citations (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3415552A (en) * 1966-11-29 1968-12-10 Howlett Machine Works Splicing metallic reinforcing rods with a threaded coupling sleeve
DE1784807A1 (de) * 1968-09-20 1971-11-11 Strabag Bau Ag Stossverbindung fuer Bewehrungseinlagen von vorgefertigten Bauwerksteilen
FR2166317A1 (de) * 1971-12-10 1973-08-17 Inst Politehnic Iasi
FR2207232A1 (de) * 1972-11-22 1974-06-14 Pelissier Yvan
US4362423A (en) * 1980-09-08 1982-12-07 Williams Form Engineering Corporation Coupling for coil-thread rebar
DE3122874C1 (de) * 1981-06-10 1983-01-13 Walter 4000 Düsseldorf Hoff Vorrichtung zum Verbinden von Bewehrungsstäben im Bauwesen
NL8301358A (nl) * 1983-04-18 1984-11-16 Erico Europa Schroefkoppeling voor betonijzer.
FR2558904A1 (fr) * 1984-01-31 1985-08-02 Techniport Sarl Organe de liaison de deux tirants
WO1986004384A1 (en) * 1985-01-25 1986-07-31 Titan Mining And Engineering Pty. Ltd. Deformed bar for adhesion and applying tension
FR2626600A1 (fr) * 1988-02-03 1989-08-04 Techniport Sa Liaison mecanique de ronds a beton
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FR2689156A1 (fr) * 1992-03-30 1993-10-01 Techniport Sa Procédé de réalisation d'une liaison mécanique de ronds à béton, liaison obtenue par le procédé, rond à béton autorisant la mise en Óoeuvre du dit procédé, et installation de préparation de ronds à béton.
EP0563490A1 (de) * 1992-03-30 1993-10-06 Etablissements A. Mure Verfahren zur Realisierung mechanischer Betonstahlverbindungen, Verbindung nach diesem Verfahren, Betonstahl für dieses Verfahren und Einrichtung zur Bearbeitung der Betonstähle
WO1993024257A1 (en) * 1992-06-01 1993-12-09 Tartuntamarkkinointi Oy Method of making a threaded connection for reinforcing bars
US5660594A (en) * 1992-06-01 1997-08-26 Tartuntamarkkinointi Oy Method of making a threaded connection for reinforcing bars
NL1010661C2 (nl) * 1998-11-26 2000-06-19 Novitec International B V Wapeningsstelsel alsmede betonconstructie.
US7624556B2 (en) 2003-11-25 2009-12-01 Bbv Vorspanntechnik Gmbh Threaded deformed reinforcing bar and method for making the bar
CN109339346A (zh) * 2018-11-22 2019-02-15 王蒙蒙 一种建筑工程临时支护用连接件及其连接方法
CN109339346B (zh) * 2018-11-22 2020-12-15 宁波中交水运设计研究有限公司 一种建筑工程临时支护用连接件及其连接方法
CN113513123A (zh) * 2021-07-28 2021-10-19 河南省第一建筑工程集团有限责任公司 低温环境下预制装配式竖向构件灌浆蓄温养护施工方法

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CA2065203A1 (en) 1993-10-07
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ATE121487T1 (de) 1995-05-15

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