EP1277892B1 - Muffenverbindung für Betonstäbe - Google Patents

Muffenverbindung für Betonstäbe Download PDF

Info

Publication number
EP1277892B1
EP1277892B1 EP02012282A EP02012282A EP1277892B1 EP 1277892 B1 EP1277892 B1 EP 1277892B1 EP 02012282 A EP02012282 A EP 02012282A EP 02012282 A EP02012282 A EP 02012282A EP 1277892 B1 EP1277892 B1 EP 1277892B1
Authority
EP
European Patent Office
Prior art keywords
sleeve
female
connection according
projection
male
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
EP02012282A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP1277892A1 (de
Inventor
Gerhard Trunz
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.)
Peikko Finland Oy
Original Assignee
Schoeck Bauteile GmbH
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Schoeck Bauteile GmbH filed Critical Schoeck Bauteile GmbH
Publication of EP1277892A1 publication Critical patent/EP1277892A1/de
Application granted granted Critical
Publication of EP1277892B1 publication Critical patent/EP1277892B1/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
    • E04C5/16—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 present invention relates to a socket connection for reinforcing steel bars, wherein the reinforcing steel bars at their ends to be joined in each case with the one End of a male or female female part are connectable and the male-female part has a pin with external thread at its other end, while the female socket part at its other end a bore with corresponding Internal thread has, so that both sleeve parts together are screwed, wherein the male or female female part at least one Projection, the deformed by screwing the two sleeve parts so is that of a deformation resisting resistance of the projection an axial biasing force between the threads of the two sleeve parts causes.
  • the male and female female parts either by pressing connected to the corresponding bar end with the reinforcing steel bar or through a screw connection, in which the rod end first a special thread is applied, then screwed onto the socket part.
  • the connection the two sleeve parts themselves are then done by screwing the cylindrical External thread of the male socket part with the cylindrical internal thread of the female socket part.
  • EP-A-0 816 584 a sleeve joint having the features the preamble of claim 1 become known, in which a deformable Projection is provided, which deforms when screwing the two sleeve parts is that an axial biasing force between the threads of the two Cuff parts are created.
  • the projection is arranged at the end of the reinforcing steel bar, which is pressed with the female socket part. This projection is when screwing deformed the male-female part of the front end side. The deformation thus takes place inside the female socket part.
  • a stop attached which when screwing in plant with the female socket part.
  • the present invention has the object on, the known socket joint for reinforcing bars continues to improve, with the maximum offset limit even without a torque wrench to be complied with.
  • the deformable projection is arranged on an end face of a sleeve part, which after the Screwing abuts on a corresponding end face of the other sleeve part.
  • the end face must be directly or indirectly with the respective socket part be connected.
  • the End faces can be the respective sleeve part, for example, radially surrounded as a ring, so that overall results in a flange-like design or it can already on existing end faces are used.
  • the deformable projection projects axially in the direction of the other Sleeve part in front.
  • the main component of the force resulting from the Resistance of the projection against its deformation results in the axial direction.
  • the projection radially, obliquely or in the circumferential direction projects.
  • the end face, on which the deformable projection is provided at the end of the male or Female-sleeve part is arranged. If the deformable projection on the Male-sleeve part is arranged, the end face can by a radial circular area be formed at the transition between threaded pin and male-female part. If the deformable projection is provided on the female-female part, the End face through the end, the threaded bore enclosing radial annular surface be formed of the female socket part.
  • a very important development of the principle according to the invention is form the deformable projection such that by screwing the two sleeve parts a defined biasing force and thus a predetermined Slip restriction is generated.
  • the determining parameters become the projection, such as its material, its shape, size and position and the Extent of salience and the like on the one hand and the parameters of
  • sleeve parts in particular their thread dimensions
  • the material of the deformable projection so elastic Material, especially rubber can be used. Due to the elasticity of a such projection, is also a multiple screw with subsequent Loosen the sleeve parts possible without changing the size of the projection caused axial biasing force adversely changes.
  • the deformable projection may expediently be partially into a groove be inserted ring.
  • the groove can u.a. in the end-side Ring surface of the female-sleeve part may be arranged, which surrounds the threaded bore.
  • a second, particularly favorable alternative of the invention is the deformable Projection as preferably integrally connected to its sleeve part Material edge, in particular milling edge formed, which expediently obliquely forward towards the other sleeve part can protrude and as freestanding ring is formed.
  • the deformation goes here expedient beyond the elastic range in the plastic area.
  • the deformable projection on the male or female socket part in Essentially be directed radially outward, so that when screwing the Cuff parts axially kinked away.
  • the occurring bending resistance against the Deformation of the protrusion then acts in a similar manner to the above Embodiments explain the axial preload between the threads of the two sleeve parts.
  • a socket connection is also desirable if the reinforcing steel bars can not be twisted, so For example, are already embedded in concrete or due to their relocation more or are less fixed.
  • the sleeve parts directly screw together, but indirectly, namely with interposition of rotatable bridging parts. So here, too, the desired preload force can be generated, it is within the scope of the invention, the previously described deformable projection not or not only on the sleeve parts to arrange, but optionally on the bridging parts. Decisive in this is that at each screw connection the male or female bypass part by at least one deformable projection of the desired tension is subjected.
  • FIG. 1 shows a male socket part 1 of a socket connection in the left-hand illustration for not shown here reinforcing steel bars, with its free end 2 on a pressed to be joined reinforcing steel bar or screwed by a thread becomes.
  • the free end 2 a to the outer diameter of the Reinforcing steel rod adapted concentric bore 3.
  • a cylindrical pin 5 is formed, which has an external thread 6.
  • This external thread 6 the sleeve part 1 in a bore 11 in the Right-hand drawing shown
  • Female-female part 10 with a in this bore 11 arranged internal thread 12 are screwed.
  • the bore 11 closes terminal with a radial annular surface 13 from.
  • the rubber ring 15 By further screwing the rubber ring 15 is then pressed until the radial annular surface 13 of the female-female part and the radial annular surface 4 of the Male-sleeve part lie almost seamlessly together. It is from the rubber ring 15 causes an axial biasing force, the slip tendency of the thread counteracts the two sleeve parts.
  • the determining parameters for the tension such as hardness, shape and size of the projection, its projection and the like on the one hand and the two sleeve parts on the other hand are so on each other tuned that a defined slip restriction between the two sleeve parts is achieved.
  • FIGS. 3 (a), 3 (b) a particularly advantageous embodiment of the present invention is shown Invention shown.
  • FIG. 3 (a) shows a female socket part 20 with a bore 21 with an internal thread, in which, unlike the female-female part 10 of Figure 1, no in one Ring groove inserted rubber ring is provided, but an obliquely forward in the direction of an unillustrated male-female part facing milling edge 22, the extending from a bore 21 enclosing, end-side radial end face 23.
  • the milling edge 22 has a material thickness in the millimeter range and forms an approximately axially projecting, circumferential in the circumferential direction ring.
  • the deformation resistance of the milling edge 22 generates the axial preload force between the two sleeve parts.
  • the male-female part 30 shown in FIG. 4 (a) has the male-female part 1 from Figure 1 via a bore 31 for screwing or pressing on a Reinforcing steel rod and one formed on a radial end face 32 Spigot 33 with external thread 34 for screwing it into a corresponding Bore of a female-female part, not shown here.
  • This projection 36 can be easily generated by unilateral radial recess 37 be, with the resulting annular groove at the same time the receiving space for the forming later deformation of the projection 36.
  • At the opposite of the puncture Side of the projection 36 may advantageously made a groove 38 so that the projection protrudes obliquely forward.
  • Figure 5 shows a socket joint for such applications, where the male and Female-cup parts are not or only to a limited extent rotatable or where they are from others Reasons can not be bolted together directly.
  • the Male and Female-sleeve parts have the same structure as in Figure 1, but that is Male sleeve part 1 equipped with a deformable projection 36 according to FIG.
  • the external thread 41 of the external thread 34 corresponds to the male-female part and that on the threaded rod 40 a relatively long nut 50 and two lock nuts 60 and 70 are arranged are.
  • the union nut 50 is screwed to the left until the thread 34th the male-female part 1 is detected and finally on the deformable projection 36 of this sleeve part abuts (the threaded rod 40 is in reality longer than shown in the drawing).
  • the nut 50 is then so strong attracted, that the deformable projection 36 plastically deformed as described is, so that here, the tension between the male-female part. 1 and the union nut 50 is ensured.
  • the projection is shown as an annular part; but instead, several local projections are conceivable.
  • a projection - optionally in conjunction with a stop line generates defined tension, as previously only by means of a torque wrench was possible.
  • the preload force can be almost independent of the preload path (joint opening) keep at a constant value.

Landscapes

  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Reinforcement Elements For Buildings (AREA)
  • Mutual Connection Of Rods And Tubes (AREA)
  • Joining Of Building Structures In Genera (AREA)
EP02012282A 2001-07-19 2002-06-05 Muffenverbindung für Betonstäbe Expired - Lifetime EP1277892B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE20111793U 2001-07-19
DE20111793U DE20111793U1 (de) 2001-07-19 2001-07-19 Muffenverbindung für Betonstäbe

Publications (2)

Publication Number Publication Date
EP1277892A1 EP1277892A1 (de) 2003-01-22
EP1277892B1 true EP1277892B1 (de) 2004-09-01

Family

ID=7959368

Family Applications (1)

Application Number Title Priority Date Filing Date
EP02012282A Expired - Lifetime EP1277892B1 (de) 2001-07-19 2002-06-05 Muffenverbindung für Betonstäbe

Country Status (6)

Country Link
EP (1) EP1277892B1 (cs)
AT (1) ATE275226T1 (cs)
CZ (1) CZ298517B6 (cs)
DE (2) DE20111793U1 (cs)
HU (1) HU224189B1 (cs)
PL (1) PL206354B1 (cs)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AU2003902986A0 (en) * 2003-06-13 2003-06-26 Onesteel Reinforcing Pty Ltd A coupler
DE102008018325A1 (de) 2008-04-11 2009-10-15 Schöck Bauteile GmbH Muffenverbindung für Betonbewehrungsstäbe
CN103671440B (zh) * 2013-11-22 2015-10-28 江苏天舜金属材料集团有限公司 一种空中多点垂直钢筋连接节点及其施工方法
AU2021221436A1 (en) * 2021-05-04 2022-11-24 Illinois Tool Works Inc. Coupler for threaded reinforcing bar
DE102023000168A1 (de) * 2023-01-19 2024-07-25 DUCA Systems AG Verschraubbare bewehrung

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2124433C3 (de) * 1971-05-17 1975-02-13 Dyckerhoff & Widmann Ag, 8000 Muenchen Muffenverbindung für gerippte Bewehrungstähle
EP0098099A3 (en) * 1982-06-29 1984-03-28 Ccl Systems Limited Two part connector for concrete reinforcing bars
BE895952A (nl) * 1983-02-18 1983-06-16 Penen & Co N V J Mofverbinding tussen de van schroefdraad voorziene uiteinden van bewapeningsstaven of gelijkaardige staven
DE4027230C2 (de) * 1990-08-29 1994-02-17 Wayss & Freytag Ag Schraubmuffenverbindung
DE19626649A1 (de) * 1996-07-03 1998-01-08 Deha Ankersysteme Schraubkupplung für kraftübertragende Stäbe
DE29721146U1 (de) * 1997-11-28 1999-04-01 Max Bögl Bauunternehmung GmbH & Co KG, 92318 Neumarkt Verbindungsstück
DE19753755C2 (de) * 1997-12-04 2001-07-05 Deha Ankersysteme Schlupfarme Schraubverbindung für Stäbe im Bauwesen mit geometrisch definierter Konterung
DE29900307U1 (de) * 1999-01-11 2000-05-25 Pfeifer Holding GmbH & Co. KG, 87700 Memmingen Schraubanschluß zur Verbindung der Enden von Bewehrungsstäben

Also Published As

Publication number Publication date
HU0202373D0 (cs) 2002-09-28
DE50200915D1 (de) 2004-10-07
HU224189B1 (hu) 2005-06-28
EP1277892A1 (de) 2003-01-22
DE20111793U1 (de) 2001-09-20
HUP0202373A2 (hu) 2004-05-28
PL354837A1 (en) 2003-01-27
CZ298517B6 (cs) 2007-10-24
PL206354B1 (pl) 2010-07-30
ATE275226T1 (de) 2004-09-15
CZ20022400A3 (cs) 2003-03-12

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