EP1424453B1 - Manchon d'accouplement - Google Patents

Manchon d'accouplement Download PDF

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Publication number
EP1424453B1
EP1424453B1 EP03027158A EP03027158A EP1424453B1 EP 1424453 B1 EP1424453 B1 EP 1424453B1 EP 03027158 A EP03027158 A EP 03027158A EP 03027158 A EP03027158 A EP 03027158A EP 1424453 B1 EP1424453 B1 EP 1424453B1
Authority
EP
European Patent Office
Prior art keywords
connecting sleeve
reinforcement
sleeve
connection according
reinforcement element
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
Application number
EP03027158A
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German (de)
English (en)
Other versions
EP1424453A1 (fr
Inventor
Matthias Kintscher
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.)
Pfeifer Holding GmbH and Co KG
Original Assignee
Pfeifer Holding GmbH and Co KG
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.)
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Application filed by Pfeifer Holding GmbH and Co KG filed Critical Pfeifer Holding GmbH and Co KG
Publication of EP1424453A1 publication Critical patent/EP1424453A1/fr
Application granted granted Critical
Publication of EP1424453B1 publication Critical patent/EP1424453B1/fr
Anticipated expiration legal-status Critical
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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
    • E04C5/16—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 rebar connection with a connecting sleeve for the end-side connection to a reinforcing element of a concrete component, wherein the end of the reinforcing element protrudes into the connecting sleeve and the space between the connecting sleeve and the reinforcing element is filled with a casting agent.
  • German Offenlegungsschrift 29 06 752 discloses a method and apparatus for connecting a plurality of bar ends using a sleeve of cast steel, into which the bar ends are inserted from both sides.
  • the space between rod and sleeve is filled with a curable resin material. Venting channels prevent the formation of voids or Luker when filling the resin.
  • annular recesses are provided in the interior of the sleeve, which are aligned with one another in such a way that they form clamping surfaces which give rise to a connection which can be loaded in particular on tension.
  • German Offenlegungsschrift 1 559 509 discloses a sleeve for connecting the ends of two steel rods, wherein the inner surface of the sleeve provided with projections and depressions, which may have the shape of annular grooves. Bar ends and sleeve are potted with epoxy resin.
  • connection for reinforcing bars made from the section of a larger diameter reinforcing bar is known.
  • This section will provided with a bore into which the ends of the rods to be joined are introduced and filled with adhesive. The surface of the hole is roughened.
  • the invention has set itself the task of providing a Verbinungsmuffe as described above, which corrects the disadvantages described above.
  • the proposal according to the invention turns away from the elaborate production of individual castings and proposes rather, for example, tubular rod material, for example, corresponding steel tubes to use, which are cut to length in the desired length and so the body of the Form connection sleeve. It is easily possible, by appropriate selection of profiled goods (steel quality, inner diameter, wall thickness), the coupling sleeve optimally adapted to the respective load purposes. In this case, the profiled goods is available as a mass-produced low, which is ultimately associated with low production costs of the coupling sleeve at the same time very high bandwidth of variants of the coupling sleeve for a variety of applications. Thus, the invention manages to actually combine two conflicting features.
  • profiled goods steel quality, inner diameter, wall thickness
  • the profile material is obtained, for example, in a rolling or slide-drawing process.
  • drawn tubes of steel are characterized by small deviations and good surface finish.
  • This manufacturing process also usually leads to an increase in strength, which is also advantageous for the field of application.
  • profile material for example, in a rolling process such as pipes or the like.
  • extrusion-molding processes of course depending on the particular material, can also be used.
  • the main advantage of the invention lies precisely in the fact that this profile material is very cheap available in a variety of dimensions such as inner diameter, wall thickness or outer diameter and thus allows a high variety of types without having to hold a large number of different molds.
  • a thread In the separated from the profile material, for example sawn, tapped or cut, profile material section piece is subsequently incorporated in a further processing step, a thread.
  • the cutting of the thread is done fully automatically, for example, with appropriate machines, which keeps the costs low.
  • it is possible to roughen the inner surface of the profile material by the thread so that the zuzug manende, liquid casting compound, which has to transmit the forces between the reinforcing element and the connecting sleeve, actually einkrallt positive fit.
  • the inner wall of the coupling sleeve carries a thread on its entire inner wall surface, this can be provided only in the connection region or in a part thereof, which then acts as a connection region.
  • the proposal according to the invention combines favorable manufacturing costs with a high degree of variability in the design of the connecting sleeve according to the invention and represents a very reliable technique for connecting the reinforcing element with the connection sleeve available.
  • the invention is not limited to the coupling sleeve as described, but also includes a method for producing such a coupling sleeve, initially separated by a profile material a Profilmaterialabêt consultancy, for example sawed off, tapped or cut and then in the inner wall of an interior of the Profile material section piece a thread is cut.
  • the profile material section piece is obtained from a profile material by cutting off, cutting or sawing, in particular, the cutting or parting off with appropriate tools is done very quickly and inexpensively.
  • the reinforcing element carries ribs and the ratio of threads to ribs in the region of the reinforcing element projecting into the connecting sleeve is 2.5 to 5, preferably 2.9 to 4.2. It is advantageous if not only a frictional, but a possible positive connection between the coupling sleeve and the reinforcing element, for example, the reinforcing steel exists.
  • ribs are provided on the reinforcing element or the reinforcing steel, through which results in a positive connection in the casting agent or the concrete (depending on the application).
  • a ratio of about 2.9 corresponds in one embodiment to a reinforcing steel diameter of 8 mm, a ratio of 4.2 to a reinforcing steel diameter of 28 mm.
  • a ratio of 4.2 to a reinforcing steel diameter of 28 mm it is possible to achieve a higher ratio even with thinner rods, for example, by using appropriate fine thread.
  • the depth of the threads is less than the radial, in particular the mean width of the intermediate space.
  • the gap is the sleeve-like body forming between the coupling sleeve and the reinforcing element.
  • the reinforcing element or reinforcing steel is inserted concentrically into the sleeve-like or cylindrical coupling sleeves. It would then give a "sleeve" of the gap with a constant thickness. This is understood below as the mean radial width of the intermediate space.
  • Such an arrangement is sought, in particular by the centering devices explained below, in order to achieve the most uniform possible introduction of force of the reinforcing element via the casting agent in the connecting sleeve.
  • the average radial width of the intermediate space is between 1 and 6 mm, preferably between 2 and 4.5 mm.
  • the mean radial width may also correspond to the play of the arrangement of the reinforcing element in the connecting sleeve.
  • a certain amount of play is advantageous for introducing the reinforcing element into the connecting sleeve, relatively large widths of the intermediate space (of the clearance) also being used for relatively thick reinforcing elements.
  • Reinforced steels between 8 and 28, sometimes 32, 36 or even 40 mm in diameter are used.
  • the invention is not limited thereto.
  • the connecting sleeve according to the invention is characterized in particular by the fact that a lasting slip between the connecting sleeve and the reinforcing element connected to the casting agent of less than 0.1 mm is formed under working load.
  • Such an arrangement is achieved in particular by optimizing the cooperation of the reinforcing element, the casting agent and the connecting sleeve. In particular, this is achieved in that the geometry is chosen such that the radial width of the gap is as small as possible.
  • the coupling sleeve with the encapsulant, in particular resin or epoxy resin, embedded, designed as reinforcing steel reinforcing element has the same fatigue strength, as the unpunched reinforcing steel.
  • the use of reactive resin adhesives As a grout, the fatigue strength has increased considerably, at the same time there was a slight slip over the entire compound under working load of not more than 0.1 mm.
  • the chosen arrangement achieves further, surprising advantages. In addition to the above-described favorable production with a wide variability, a vibration-resistant, and only a slight slip-forming compound according to the invention is provided.
  • the anchoring depth of the protruding into the coupling sleeve reinforcement element or reinforcing steel at least 5 times the diameter of the reinforcing element or the reinforcing steel diameter corresponds.
  • the anchoring depth is at least 5 to 10 times, especially within the interval of 6.5 to 9 times the diameter of the reinforcing element / reinforcing steel diameter.
  • the anchoring depth is somewhat larger than with larger rod diameters, with a rod diameter of about 8 to 16 mm was advantageously found that at least a factor of 8 between the anchoring depth and the rod diameter, whereas with reinforcing steels between 20 and 32, 36 or 40 mm in diameter, a factor of at least 7 between the anchoring depth and the diameter may already be sufficient.
  • an internal thread also offers several other advantages. On the one hand, it is possible that the thread to Screwing a bolt or the like with matching external thread is used. Furthermore, the internal thread but also serves to improve the power transmission between the reinforcing element (for example, a reinforcing steel or reinforcing rod) on the adhesive mortar on the coupling sleeve. The use of the thread is therefore twice as cheap.
  • the proposal according to the invention limits the coupling sleeve not only to a connection with another element with the aid of adhesive mortar, but also allows the screwing of a bolt with a corresponding external thread. It is therefore also possible to connect different systems of reinforcing elements with the aid of a connecting sleeve which nevertheless functions as an interface.
  • a grout is equivalent to the grout.
  • adhesive mortars possibly based on cement
  • resins epoxy resins or reactive resin adhesive can be used, which set for a fast setting, after a short time are resilient and able to transfer a high working load.
  • the connecting sleeve end carries an internal thread. It has been found that even with such a configuration, a sufficient power transmission from the reinforcing element (or reinforcing bar) is achieved on the coupling sleeve. The cost of cutting the thread can therefore be reduced accordingly, but without sacrificing the advantage of the connection option, especially in the end of the coupling sleeve.
  • assembly plate possibly made of plastic, screwing into the thread. The plastic needs no precut Have thread, the softer plastic material gives accordingly.
  • the internal thread extends over the entire length of the connecting sleeve.
  • the invention is not limited to the pure connection of reinforcing elements, which are to be connected according to their impact. It is in principle also possible to dimension the coupling sleeve so that it receives a plurality of reinforcing elements.
  • the connecting sleeve is formed with the substantially constant cross-section.
  • corresponding seals can be provided. Such a configuration allows that a corresponding, secured measure of the internal thread is available for connection purposes.
  • the connecting sleeve is constricted end such that the reinforcing element is still insertable.
  • the constriction can be just dimensioned so that when the reinforcing rod is inserted into the reinforcing element, the remaining gap is so small that no adhesive mortar flows out.
  • this constriction can conveniently serve as a centering device for the reinforcing bar to ensure that the reinforcing bar is arranged as concentric as possible for optimum power transmission between the reinforcing element and the coupling sleeve.
  • the constriction is won in a simple manner. This is possible, for example, by a corresponding pressing or pressing of the end region of the connecting sleeve.
  • the internal thread can be cut in before or after the pressing. It is even possible, even the internal thread in the constriction, for example, for the placement of a plastic mounting plate or the like to use. But it is also easily possible just to cut the end of the connecting sleeve, if correspondingly accurate internal thread, for example, for screwing a bolt and so on, are needed.
  • the area of the constriction also helps in the statics, since the occurring shear forces may also be supported on the constriction area. With a corresponding dimensioning result from this higher load capacity, or the thread can turn out to load application shorter or eliminated.
  • the coupling sleeve has different openings.
  • one or more filling openings are provided for the adhesive mortar into which the adhesive mortar is inserted when the reinforcing bars or reinforcing bars are positioned in the connecting sleeve accordingly are.
  • the adhesive mortar is pressed with pressure. It is the goal that the adhesive mortar propagates as possible without formation of hollow chambers and so on in the gap between the reinforcing element and coupling sleeve.
  • one or more vents are provided in the coupling sleeve.
  • the filling opening is located in the middle or in the middle region of the connecting sleeve, in order to achieve the most symmetrical possible spreading of the adhesive mortar in the sleeve.
  • the ventilation openings are preferably located in the end region of the connecting sleeve.
  • a seal can be provided at the connecting sleeve end. There are different variants for this.
  • a sealing ring or a sealing cord as a seal.
  • the sealing ring is, for example, pushed onto the end of the reinforcing element designed as a reinforcing bar and clamped on it.
  • a sealing cord in the gap between the reinforcing rod and coupling sleeve.
  • the seal is arranged in the coupling sleeve and conceals the gap between the coupling sleeve and the reinforcing element.
  • a sealing cap as a seal, wherein the sealing cap is clamped on the connecting sleeves.
  • the coupling sleeve end has on its outer side a corresponding thread or an undercut, which / s with the sealing cap in a corresponding manner (thread or protruding nose) holding It is also advantageous to optionally form the seal from a plurality of elements which together provide a complete seal. Especially with relatively poorly accessible connections, this is an interesting option.
  • the sealing ring can also serve to center the reinforcing bar in the sleeve, which improves the quality of the force and thus the load capacity.
  • the end-side constriction (or compression) of the connecting sleeve acts as a seal.
  • the end-side constriction reduces the gap between the coupling sleeve and the reinforcing element, which can be dimensioned so that the remaining gap, which still exists for the insertion of the reinforcing element, is so small that no appreciable Klebörtörtelmaterial flows out. If a correspondingly fast-setting adhesive mortar is used, it will close this gap by itself.
  • the seal cooperates with the internal thread of the coupling sleeve to obtain a secure arrangement of the seal in the region of interest.
  • the design of the seal also allows that it is designed as a mounting plate, whereby the assembly, for example, within the formwork when creating the concrete component, is facilitated.
  • the seal is used twice, because in addition to the actual function to seal the gap, this serves as a mounting plate and facilitates installation.
  • a limiting piece arranged in the connecting sleeves, preferably in the middle region. The limiting piece serves to place the connecting sleeve as centrally as possible over the two intermittently arranged reinforcing elements.
  • the limiting piece is arranged centrally, but without limiting it thereto. It is also possible to choose corresponding asymmetrical arrangements of the limiting piece. In this case, if a constriction is arranged on the end side of the connecting sleeve, it is provided to install the limiting piece before the compression of the connecting sleeve end.
  • a centering device for the reinforcing element is provided. This achieves the most symmetrical possible transfer of the forces to be transferred from the reinforcing bar into the connecting sleeve. Also for the design of the centering exist several possibilities. First, it is proposed that several, preferably three, are provided on the circumference of the connecting sleeve equidistantly arranged clamping screws. The clamping screws allow a flexible adaptation to the respective diameter of the reinforcing element.
  • a further variant of the invention serve as a centering several, preferably three, circumferentially equidistantly arranged resilient pin made of plastic.
  • the pins are so resilient that they are pressed in a corresponding opening in the coupling sleeve, but there are stable in position to achieve a secure centering.
  • the advantage of this variant is that can be dispensed with the cutting of a thread in the coupling sleeve.
  • the limiting piece has a center for receiving the reinforcement element and thus serves as a centering device.
  • the limiting piece has a conical or frusto-conical recess, which also allows a continuous adjustment to different diameter of the reinforcing element.
  • the seal or the constriction as centering mitdient. This ensures that the sleeve along two areas, namely in the middle and in the end region, concentric with the coupling sleeve is orientable.
  • the arrangement of the constriction results in additional synergetic effects.
  • an adhesive mortar is provided as a grout.
  • Adhesive mortar hereby consist of a mixture of cements, various plastics and other additives. For example, special synthetic resin dispersion powder, etc. are added to the adhesive mortars.
  • the grout or the adhesive mortar should thereby advantageously have the following properties. He should have a high compressive strength at the same time good flowability. Due to good fluidity, a full-scale compression of the connecting sleeve interior is achieved. Favorable is a high early strength to reach a certain partial load of the coupling sleeve shortly after casting.
  • Fig. 1 shows a coupling sleeve 1.
  • the coupling sleeve is placed on the end of a reinforcing element 2, for example a reinforcing bar 20, 21 and connects the two reinforcing bars 20, 21 end.
  • the space left between the reinforcement element 2 and the connecting sleeve 1 is potted with adhesive mortar 5.
  • the connecting sleeve has a filling opening 12, which in This embodiment is arranged substantially in the middle of the connecting sleeve 1.
  • At least the edge or end region 11 of the connecting sleeve 1 has an internal thread 4.
  • the internal thread 4 serves essentially two purposes. On the one hand, this increases the bond between the adhesive mortar and the connecting sleeve, that is, increases the transferable force between the reinforcing element 2 and the connecting sleeve 1.
  • the thread 4 is only in the end portion 11 of the coupling sleeve 1.
  • the middle region has no thread.
  • the thread 4 extends over the entire length of the inner side 10 of the connecting sleeve 1.
  • Fig. 2 an interesting variant is shown.
  • a bolt 3 is turned on the thread 4.
  • connecting sleeves 1 can be turned on to give a corresponding further connection to other reinforcing elements.
  • the filling opening 12 is off-center, here in the left area of the connecting sleeve. The pressed into the gap adhesive mortar swells out of the end gap 14 between the sleeve 1 and the reinforcing element 2 when the gap is filled, out.
  • FIG. 3 the use of the connecting sleeve 1 is shown.
  • Two reinforcing bars 20, 21 to be connected butt to joint are to be connected to the connecting sleeve 1.
  • the left reinforcing bar 21 is already inserted into the left part of the coupling sleeve, the gap between the Reinforcing bar and the connecting sleeve 1 is closed by a seal 6.
  • the right rod 20 is being inserted, this is indicated by the arrow.
  • This reinforcing rod 20 carries a sealing ring 60 as a seal 6. This sits firmly on the reinforcing bar 2 for securing and sealing.
  • the respective seals 6 seal the gap or the gap between the reinforcing element 2 and the connecting sleeve 1. It is then filled through the filling opening 12 Klebemörtel 5. To escape the air vents 13 in the coupling sleeve (in this case at the end) or in the seals 6 are provided. The seal 6 is in this case squeezed during installation so that a secure seal is formed. As can still flow through the vent opening 13 in the connecting sleeve 1 existing air, a possible bubble or shot free casting with adhesive mortar 5 is achieved.
  • a coupling sleeve In Fig. 5, 6 is shown a further, particularly interesting embodiment of a coupling sleeve.
  • the structure in particular of the connecting sleeve 1 after Fig. 5 is after Fig. 1 similar.
  • a constriction 15 is provided at the lateral edge of the connecting sleeve 1, which is achieved by a compression. This constriction 15 causes more at the same time.
  • the constriction 15 also acts as a seal 6, that is, it prevents adhesive mortar 5 from running out of the interior of the connecting sleeve 1. The remaining gap serves as a vent.
  • this constriction 15 also acts to reliably transmit the forces to be transmitted from the reinforcement element 2 to the connection sleeve 1.
  • the compression or constriction 15 accordingly is selected narrow clamp the coupling sleeve 1 for mounting purposes on the reinforcing element 2 accordingly.
  • this constriction 15 also acts as a centering device 7 to ensure that the reinforcing element 2 is installed as concentrically as possible in the connecting sleeve 1.
  • the invention allows the realization with a thread 4 (see Fig. 9 and 14 ).
  • constriction 15 is formed so tight that no gap between the sleeve 1 and the reinforcing bar 2 remains from which potting material could swell, as in the variant according to Fig. 5 indicated and optionally also acceptable.
  • it is also provided to provide an elastic sealing band or the like in the region of the constriction 15, which allows the insertion of the reinforcing element 2, but prevents the outflow of adhesive mortar 5.
  • a seal 6 in this case serves a Abdichtkappe 61, which has an opening for performing the reinforcing element 2.
  • a seal 6 in this case serves a Abdichtkappe 61, which has an opening for performing the reinforcing element 2.
  • Fig. 8c shows, wherein the existing of fins 62 Abdichtkappe crosswise slotted 63, resulting in a corresponding elasticity and a continuous adjustment of the opening to the respective diameter of the reinforcing rod. 2
  • the sealing cap 61 is placed or clamped on the end-side edge of the connecting sleeve 1 so that it securely closes the connecting sleeve end and prevents adhesive mortar 5 runs out.
  • the opening in the sealing cap 61 centers the reinforcing bar in the sleeve longitudinal axis.
  • Fig. 8b is clearly visible as the adhesive mortar 5 extends into the intermediate space between the reinforcing bar 2 or reinforcing element 2 and the connecting sleeve 1.
  • the connecting sleeve 1 also has a thread 4 in the end region, wherein the adhesive mortar 5 flows into both the threads of the thread 4 as well as in the interstices between the ribs of the reinforcing bar 20 and so not only produces a positive but also a positive connection.
  • Fig. 9a a variant of the invention is shown.
  • the seal 6 is in this case designed as a mounting plate 64, which, like the cap 61, is placed on the end of the connecting sleeve 1 or pressed.
  • the internal thread 65 facilitates jamming of the mounting plate 64 on the possibly also equipped with ribs reinforcing rod or other reinforcement element. 2
  • this mounting plate 64 also acts as a centering 7.
  • the mounting plate 64 has a small bore 66, which also serves as a vent hole.
  • This also acts as a centering device 7 for the reinforcing element 2.
  • the centering device 7 has a conical receptacle 70 which is concentric in the connecting sleeve 1. Now, if the reinforcing element 2 is introduced, it will slide into a further insertion movement into the receptacle 70 and so automatically aligned centered at least at its front end.
  • the seal 6 helps with concentric alignment, in which respect the seal 6, be it the sealing ring 60, the sealing cap 61, the mounting plate 64 or the constriction 15, as Part of the centering 7 mitdient.
  • the seal 6 be it the sealing ring 60, the sealing cap 61, the mounting plate 64 or the constriction 15, as Part of the centering 7 mitdient.
  • Fig. 10a, 10b a further variant of the centering device 7 is shown.
  • several, preferably three, on the circumference of the connecting sleeve 1 equidistantly arranged clamping screws 71 are proposed. These screws can also be arranged offset. There are two times three screws arranged so as to achieve as concentric alignment of the reinforcing element 2 as possible.
  • Fig. 10a is dispensed with a seal 6, wherein here also the seal 6, as described, can serve as a centering device 7.
  • a limiting piece 8 is provided, which is designed as a sealing plug 80 such that it closes the essential part of the cross section of the inner diameter of the connecting sleeve.
  • a sealing plug 80 such that it closes the essential part of the cross section of the inner diameter of the connecting sleeve.
  • the limiting piece 8 has a corresponding external thread, whereby the stopper 80 and the limiting piece. 8 exactly positioned and the threads are securely sealed.
  • a stopper 80 shows Fig. 12 a splint 81 as a limiting piece 8, which is pressed through a hole in the middle of the connecting sleeve 1 and also reaches a corresponding position limitation of the reinforcing elements 2.
  • reinforcing bars should also be understood to mean reinforcing elements here.
  • As a grout also adhesive mortar or the like is used.
  • Fig. 13 Another interesting variant is shown.
  • the adhesive mortar is held by a cartridge 9 and filled via a nozzle 90 in the connecting sleeve 1.
  • the nozzle 90 is inserted into the filling opening 12 and then filled, for example under pressure of the adhesive mortar 5.
  • a predetermined breaking point 92 is arranged on the nozzle 90 in the front region, that is to say on the nozzle tip 91, whereby it is possible to break off the nozzle tip 91 and remove the front part as a limiting piece 8, for example as a splint 81. to use.
  • a web 16 is provided as a limiting piece 8 in the connecting sleeve 1.
  • This web is, for example, subsequently incorporated in the coupling sleeve 1, for example welded or hammered. It is easy to see how the connecting sleeve 1 is completely installed in a concrete component 29. This can be an in-situ concrete or precast concrete component.
  • the internal reinforcing bar 20 ends in the right part of the connecting sleeve 1. In the left part of the connecting sleeve 1, the left reinforcing bar 21 connects, which serves for example for the connection of another concrete component.
  • a bent hose is provided at the filling opening 12, by which it is possible to bring adhesive mortar 5 into the connecting sleeve 1, even over a certain distance from the outside, through the precast concrete element.
  • the mounting plate 64 served not only as a seal, but in this embodiment also as an assembly aid, namely, when the connection sleeve 1 is to be attached to the shells of the concrete component at this. This then results in the shape of the mounting plate 64 corresponding recess 28 after stripping. As shown here, the mounting plate 64 has been dismantled only after the adhesive mortar 5 has gone in and hardened. Of course, the mounting plate 64 also serves as a seal.
  • Fig. 15 is yet another variant shown. Similar to in Fig. 11 the connection sleeve 1 has been used with the help of the mounting plate 64 (shown here still attached to the coupling sleeve) in the manufacture of the concrete component. In this case, a cavity 30 is protected by the mounting plate 64 from the ingress of concrete. For this purpose, the mounting plate 64 may be completely closed. In this embodiment, the filling opening 12 is not centered, but arranged strongly off-center. It remains on the left a shorter area in which, for example, on the thread 4, a corresponding bolt 3 is auffanbar. This solution therefore makes it possible, for example via a corresponding pin 3 with external thread to connect a second coupling sleeve.

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  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Reinforcement Elements For Buildings (AREA)
  • Polishing Bodies And Polishing Tools (AREA)
  • Dowels (AREA)
  • Mutual Connection Of Rods And Tubes (AREA)
  • Insulators (AREA)

Claims (17)

  1. Raccordement d'armature comportant au moins un élément d'armature et une douille de raccord destinée à un raccord de l'extrémité d'un élément d'armature d'un élément de construction en béton et en particulier à l'interconnexion de deux éléments d'armature dont les extrémités sont situées à l'intérieur de la douille et l'espace entre ces deux extrémités est rempli d'un matériau de remplissage, la douille étant une partie d'un profilé et comporte un premier dispositif de centrage à son extrémité destiné à centrer l'élément d'armature par rapport à elle-même ainsi q'une butée (8) située à son intérieur limitant la distance d'introduction de l'élément d'armature dans elle-même, caractérisé en ce que la surface intérieure de la douille de raccord (1) au niveau de la zone d'interconnexion comporte un filet (4) et en ce que la butée (8) comporte un évidement centré (70) permettant également de servir comme deuxième dispositif de centrage (7) de l'élément d'armature (2).
  2. Raccord d'armature selon la revendication 1, caractérisé en ce que le premier dispositif de centrage (7) utilise plusieurs vis de serrage (71) équidistantes, et utilise de préférence trois vis de serrage situées sur une même ligne de la circonférence de la douille de raccord (1) ou le cas échéant à côté et/ou en ce que le premier dispositif de centrage (7) utilise plusieurs et de préférence trois tiges en plastique élastique (71) situées sur la circonférence de façon équidistante.
  3. Raccord d'armature selon une des revendications précédentes, caractérisé en ce que le premier dispositif de centrage (7) possède une forme de capuchon d'étanchéité (61) ou d'une assiette de montage (64) et/ou en ce qu'un joint d'étanchéité (6) ou un étranglement (15) servent également comme premier dispositif de centrage (7).
  4. Raccord d'armature selon une des revendications précédentes, caractérisé en ce qu'il existe un joint d'étanchéité (6) au niveau de l'extrémité (11) de la douille de raccord soit sous forme d'un anneau (60), soit sous forme d'un cordon d'étanchéité et/ou en ce que la butée (8) est située à l'intérieur et vers le milieu de la douille de raccord (1).
  5. Raccord d'armature selon une des revendications précédentes, caractérisé en ce qu'un joint d'étanchéité (6) est situé à l'intérieur de la douille de raccord (1) couvrant la fente (14) existant entre la douille de raccord (1) et l'élément d'armature (2) et/ou en ce qu'un étranglement unilatéral (15) de la douille de raccord (1) sert comme joint d'étanchéité et/ou en ce qu'un joint d'étanchéité (6) centre l'élément d'armature (2) et/ou en ce qu'un joint d'étanchéité (6) crée un lien avec le filet intérieur (4) de la douille de raccord (1) et/ou en ce qu'un joint d'étanchéité (6) entoure avec force l'élément d'armature (2).
  6. Raccord d'armature selon une des revendications précédentes, caractérisé en ce que le matériau de remplissage est du mortier basé sur du ciment ou de la résine d'époxyde et/ou en ce que l'élément d'armature (2) est un élément d'armature torsadé dont le rapport entre le nombre de rainures ainsi formées et situées à l'intérieur de la douille de raccord et le pas de filet du filet intérieur est situé entre 2,5 et 5 et de préférence entre 2,9 et 4,2 et/ou en ce que la profondeur des rainures est inférieure à la distance moyenne radiale entre le fer et la douille.
  7. Raccord d'armature selon une des revendications précédentes, caractérisé en ce que la distance moyenne radiale est située entre 1 et 6 mm et de préférence entre 2 et 4,5 mm et/ou en ce qu'il reste sous charge un espace inférieur à 0,1 mm entre l'élément d'armature (2) entouré du matériau de remplissage et la douille de raccord (1).
  8. Raccord d'armature selon une des revendications précédentes, caractérisé en ce que l'ensemble formé par la douille de raccord et les éléments d'armature et en particulier des fers à béton, entouré de la matière de remplissage et en particulier de résine ou de résine d'époxyde, possède la même fiabilité mécanique qu'un élément d'armature seul.
  9. Raccord d'armature selon une des revendications précédentes, caractérisé en ce que la profondeur d'ancrage de l'élément d'armature ou du fer à béton introduit dans la douille de raccord possède une valeur au moins 5 fois et en particulier 5 à 10 fois et de préférence 6,5 à 9 fois supérieure au diamètre de l'élément d'armature ou du fer à béton.
  10. Raccord d'armature selon une des revendications précédentes, caractérisé en ce que le filet (4) peut premièrement servir au vissage de boulons (3) ou d'éléments similaires ayant un filet extérieur approprié et deuxièmement améliorer la transmission des forces de l'élément d'armature (2) via le matériau de remplissage (5) vers la douille de raccord (1).
  11. Raccord d'armature selon une des revendications précédentes, caractérisé en ce que la section de la douille de raccord (1) est approximativement constante le long de l'axe longitudinal de la douille et/ou en ce que la douille de raccord (1) possède un étranglement (15) à son extrémité comportant également un filet intérieur (4) et réduisant le diamètre de telle sorte que l'introduction de l'élément d'armature (2) reste possible.
  12. Raccord d'armature selon une des revendications précédentes, caractérisé en ce que la douille de raccord (1) comporte une ou plusieurs ouvertures de remplissage (12) pour l'introduction du matériau de remplissage (5) et dont la position est de préférence au milieu ou dans la zone centrale de la douille de raccord (1) et/ou en ce que la douille de raccord possède une ou plusieurs ouvertures de ventilation (13).
  13. Raccord d'armature selon une des revendications précédentes, caractérisé en ce que le capuchon d'étanchéité (61) comporte une ouverture pour le passage des éléments d'armature (2) et/ou en ce que le joint d'étanchéité (6) et en particulier le capuchon d'étanchéité (61) sont réalisés en plusieurs parties et/ou en ce que le capuchon d'étanchéité (61) comporte plusieurs lamelles flexibles (62).
  14. Raccord d'armature selon une des revendications précédentes, caractérisé en ce que le joint d'étanchéité (6), l'assiette de montage (64) ou le capuchon d'étanchéité (61) comportent une ouverture de ventilation.
  15. Raccord d'armature selon une des revendications précédentes, caractérisé en ce que l'assiette de montage (64) sert, lors de la fabrication de l'élément de construction en béton (29), au bon positionnement de la douille de raccord (1) à l'intérieur du coffrage et/ou en ce que l'assiette de montage est étanche et protège l'intérieur de la douille de raccord (1) contre l'introduction du béton dans l'intérieur de la douille.
  16. Raccord d'armature selon une des revendications précédentes, caractérisé en ce qu'un tuyau est connecté à une des ouvertures (12) de la douille de raccord (1) par lequel le matériau de remplissage (5) peut être introduit dans la douille de raccord (1).
  17. Procédé de fabrication d'un raccord d'armature selon une des revendications précédentes, caractérisé par la découpe d'un élément de profilé d'un matériau de profilé à l'aide d'un couteau ou d'une scie, suivi d'un taraudage d'un filet intérieur au niveau de la surface intérieur de l'élément de profilé, suivi de la mise en place de cette douille de raccord sur le ou les élément(s) d'armature, suivi d'un remplissage de l'espace situé entre l'élément d'armature et la douille de raccord avec un mortier liquide ou un mortier colle.
EP03027158A 2002-11-26 2003-11-26 Manchon d'accouplement Expired - Lifetime EP1424453B1 (fr)

Applications Claiming Priority (2)

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DE10255295 2002-11-26
DE10255295A DE10255295A1 (de) 2002-11-26 2002-11-26 Verbindungsmuffe

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EP1424453B1 true EP1424453B1 (fr) 2009-10-21

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AT (1) ATE446421T1 (fr)
DE (2) DE10255295A1 (fr)
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ES (1) ES2333114T3 (fr)

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CN108756070A (zh) * 2018-06-20 2018-11-06 肖成美 一种提高建筑搭建效率的方法

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DE102006001980A1 (de) * 2005-09-13 2007-03-22 Durabel Baubedarf Gmbh Verkehrs-Leit-Einrichtung
DE202009001292U1 (de) 2009-02-04 2010-06-24 Pfeifer Holding Gmbh & Co. Kg Verankerungs- und Verbindungsanordnung
DE102019111430A1 (de) * 2019-05-03 2020-11-05 Innogy Se Verbindung bei Gründungen
JP7048810B1 (ja) * 2021-11-02 2022-04-05 利弘 岩▲崎▼ ネジ節鉄筋用継手用グラウト止治具
EP4202146A1 (fr) * 2021-12-23 2023-06-28 Hilti Aktiengesellschaft Coupleur, système et procédé de couplage

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108756070A (zh) * 2018-06-20 2018-11-06 肖成美 一种提高建筑搭建效率的方法
CN108756070B (zh) * 2018-06-20 2020-12-18 中建城开环境建设有限公司 一种提高建筑搭建效率的方法

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Publication number Publication date
DK1424453T3 (da) 2010-02-15
ATE446421T1 (de) 2009-11-15
DE50312047D1 (de) 2009-12-03
EP1424453A1 (fr) 2004-06-02
DE10255295A1 (de) 2004-07-29
ES2333114T3 (es) 2010-02-17

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