EP0816584B1 - Schraubkupplung für kraftübertragende Stäbe - Google Patents
Schraubkupplung für kraftübertragende Stäbe Download PDFInfo
- Publication number
- EP0816584B1 EP0816584B1 EP97110267A EP97110267A EP0816584B1 EP 0816584 B1 EP0816584 B1 EP 0816584B1 EP 97110267 A EP97110267 A EP 97110267A EP 97110267 A EP97110267 A EP 97110267A EP 0816584 B1 EP0816584 B1 EP 0816584B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- rod end
- threaded pin
- face side
- screw coupling
- connection head
- 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
Links
Images
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 invention relates to a screw coupling for force-transmitting bars, in particular reinforcing bars or Tension rods, consisting of one with a first rod end connected coupling sleeve with internal thread and a Connection head with a threaded pin in the Coupling sleeve screwable and with a second rod end connected is.
- Such screw couplings in different Embodiments are known, used for example Connection of reinforcing bars of reinforced concrete reinforcements. There is an important requirement for such reinforcement in that the couplings a slip-free connection of the Secure reinforcing bars (see e.g. US-A-5 491 941 or DE-A-2 223 556).
- the object of the invention is therefore a screw coupling for force-transmitting rods of the type mentioned above train that compliance with the specified preload with simple means and in particular without the use a torque wrench is made possible and also after Establishing the connection can still be checked.
- This object is achieved in that between the first connected to the coupling sleeve Rod end and the threaded pin one under axial Force action deformable deformation body is arranged and that the screw-in depth of the threaded pin by a Stop surface on the coupling sleeve or a mark on Connection head is limited.
- the threaded pin of the connection head is deformed of the deformation body so far into the coupling sleeve screwed in until the connection head with one for this intended section for contact with the stop surface of the Coupling sleeve comes or the marking a predetermined one Has reached position with respect to the coupling sleeve.
- the deformation body can on the end face of the first Rod end and / or the threaded pin may be formed. In particular, it can by a deformable projection of the first rod end and / or the threaded pin are formed. Instead, the deformation body can also be between the first rod end and the threaded pin inserted separately Be body.
- the first rod end has an end tip has, which on the end face of the threaded pin is directed, this end face and / or the tip forms the deformation body.
- the threaded pin can also be the front Have tip pointing to the face of the first Is directed rod end, this end face and / or the Tip forms the deformation body.
- the connected to the second rod end Connection head has a radially projecting collar that on an end face of the Coupling sleeve comes to rest.
- the biased shown in the drawing Screw coupling is used for slip-resistant loads that can withstand tensile loads Connection of a first reinforcing bar end 1 with a second reinforcement bar end 2 of reinforcement one Reinforced concrete part.
- the reinforcing bars to be connected exist for example made of rebar.
- Place the reinforcement bar ends 1 and 2 shown here is only one application example of the screw coupling; instead, it could be the ends of others act force-transmitting rods, for example tension rods.
- One of the two rod ends 1 and 2 can also be part of one End anchorage in a reinforced concrete part that with a Reinforcing bar is to be connected. Instead, one of the two rod ends 1 and 2 also a connector between two screw couplings.
- the first reinforcing bar end 1 has a coupling sleeve 3 connected. In the illustrated embodiment, this is End 3a of the first reinforcing bar end 1 facing Coupling sleeve 3 by radial pressing with the first Reinforcing bar end 1 connected. The radial pressing takes place so that on the outside of the coupling sleeve 3rd at the same time a hexagon 4 is generated as a key approach.
- the section 3b facing away from the first reinforcing bar end 1 the coupling sleeve 3 is provided with an internal thread 5.
- the first reinforcing bar end 1 has an end tip 6, for example with a cone angle of 100 ° is executed.
- the second reinforcement bar end 2 is with a connection head 7 connected, for example by butt welding. Instead can the connection head 7 from one at the second Reinforcement bar end 2 upset head.
- connection head 7 consists essentially of a Threaded pin 8 in the internal thread 5 of the coupling sleeve 3 can be screwed in, as shown in FIG. 2. Face the threaded pin 8 has an end face 9 which Front tip 6 of the first reinforcing bar end 1 is directed when the threaded pin 8 in the in Fig. 2nd is shown screwed into the coupling sleeve 3.
- the tip 6 and the end face 9 form deformation bodies, which are deformed when the connection head 7 with its Threaded pin 8 beyond the position shown in Fig. 2 is screwed even deeper into the coupling sleeve 3.
- the second end of the reinforcing bar is used for screwing in. 2 provided with two lateral key flats 10. Instead, such key flats can also be used on the part of the coupling sleeve 3 protruding Connection head 7 may be provided.
- connection head 7 At its connected to the second reinforcement bar end 2 End is the connection head 7 with a radially protruding Provided collar 11, the on an end face 12 of the Coupling sleeve 3 can be brought to the plant.
- This End face 12 forms in the fully screwed-in state (Fig. 3) a stop surface for the collar 11 and limited thus the screw-in depth of the threaded pin 8 and thus also the degree of deformation of the deformation body, namely the Tip 6 and the end face 9.
- the Deformation force to be applied and thus the axial Prestressing force of the screw connection determined.
- FIGS. 4 and 5 a screw coupling differs from the one before illustrated and described embodiment, that instead of the federal government 11, the 12 on the end face Coupling sleeve 3 is brought to the plant Reinforcing bar end 2 facing side of the connection head 7 a marking 13 is provided, for example a groove, a color marking or a bead.
- This marking 13 is at the same distance from the end face 9 the connection head 7 arranged like the collar 11 in the previously described embodiment.
- the mark 13 also serves the screw-in depth of the connection head 7 so that the deformation of the Deformation body, for example the tip 6 and / or the Face 9, a biasing force in the required amount is produced.
- the connection head 7 is so far in the Coupling sleeve 3 screwed in until the mark 13 behind the end face 12 of the coupling sleeve 3 disappears.
- another reference edge can also be used a marking can be provided with which the marking 13 is brought to cover to achieve the predetermined Display screwing depth.
- the achievement of the given preload is by Compliance with the geometric dimensions of the screw coupling and guaranteed by the choice of materials. In particular are the distance of the tip 6 from the end face 12 and the distance of the end face 9 from the collar 11 is important. These dimensions can be used in the prefabrication of the parts of the Screw coupling with close tolerance are observed.
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)
- Cable Accessories (AREA)
- Suspension Of Electric Lines Or Cables (AREA)
- Surgical Instruments (AREA)
- Earth Drilling (AREA)
Description
Claims (10)
- Schraubkupplung für kraftübertragende Stäbe, insbesondere Bewehrungsstäbe oder Zugstäbe, bestehend aus einer mit einem ersten Stabende (1) verbundenen Kupplungshülse (3) mit Innengewinde (5) sowie einem Anschlußkopf (7), der mit einem Gewindezapfen (8) in die Kupplungshülse (3) einschraubbar und mit einem zweiten Stabende (2) verbunden ist, dadurch gekennzeichnet, daß zwischen dem mit der Kupplungshülse (3) verbundenen ersten Stabende (1) und dem Gewindezapfen (8) ein unter axialer Krafteinwirkung verformbarer Verformungskörper (6, 9) angeordnet ist und daß die Einschraubtiefe des Gewindezapfens (8) durch eine Anschlagfläche (12) an der Kupplungshülse (3) oder durch eine Markierung (13) am Anschlußkopf (7) begrenzt wird.
- Schraubkupplung nach Anspruch 1, dadurch gekennzeichnet, daß der Verformungskörper an der Stirnfläche des ersten Stabendes (1) und/oder des Gewindezapfens (8) ausgebildet ist.
- Schraubkupplung nach Anspruch 2, dadurch gekennzeichnet, daß der Verformungskörper durch einen verformbaren Vorsprung des ersten Stabendes (1) und/oder des Gewindezapfens (8) gebildet wird.
- Schraubkupplung nach Anspruch 2, dadurch gekennzeichnet, daß das erste Stabende (1) eine stirnseitige Spitze (6) aufweist, die auf die Stirnfläche (9) des Gewindezapfens (8) gerichtet ist, wobei die Stirnfläche (9) und/oder die Spitze (6) den Verformungskörper bildet.
- Schraubkupplung nach Anspruch 2, dadurch gekennzeichnet, daß der Gewindezapfen (8) eine stirnseitige Spitze aufweist, die auf die Stirnfläche des ersten Stabendes (1) gerichet ist, wobei die Stirnfläche und/oder die Spitze den Verformungskörper bildet.
- Schraubkupplung nach Anspruch 1, dadurch gekennzeichnet, daß der Verformungskörper ein zwischen das erste Stabende (1) und den Gewindezapfen (8) eingelegter gesonderter Körper ist.
- Schraubkupplung nach Anspruch 1, dadurch gekennzeichnet, daß der mit dem zweiten Stabende (2) verbundene Anschlußkopf (17) einen radial vorstehenden Bund (11) aufweist, der an einer die Anschlagfläche bildenden Stirnfläche (12) der Kupplungshülse (3) zur Anlage kommt.
- Schraubkupplung nach Anspruch 1, dadurch gekennzeichnet, daß das zweite Stabende (2) oder der damit verbundene Anschlußkopf (7) mit seitlichen Schlüsselanflachungen (10) versehen ist.
- Schraubkupplung nach Anspruch 1, dadurch gekennzeichnet, daß der Anschlußkopf (7) mit dem zweiten Stabende (2) durch Stumpfschweißung verbunden ist.
- Schraubkupplung nach Anspruch 1, dadurch gekennzeichnet, daß der Anschlußkopf (7) aus einem am zweiten Stabende (2) angestauchten Kopf besteht.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19626649A DE19626649A1 (de) | 1996-07-03 | 1996-07-03 | Schraubkupplung für kraftübertragende Stäbe |
DE19626649 | 1996-07-03 |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0816584A1 EP0816584A1 (de) | 1998-01-07 |
EP0816584B1 true EP0816584B1 (de) | 2000-05-10 |
Family
ID=7798733
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP97110267A Expired - Lifetime EP0816584B1 (de) | 1996-07-03 | 1997-06-24 | Schraubkupplung für kraftübertragende Stäbe |
Country Status (5)
Country | Link |
---|---|
EP (1) | EP0816584B1 (de) |
AT (1) | ATE192815T1 (de) |
DE (2) | DE19626649A1 (de) |
DK (1) | DK0816584T3 (de) |
ES (1) | ES2147958T3 (de) |
Families Citing this family (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE29900307U1 (de) * | 1999-01-11 | 2000-05-25 | Pfeifer Holding Gmbh & Co Kg | Schraubanschluß zur Verbindung der Enden von Bewehrungsstäben |
NL1012410C2 (nl) * | 1999-06-22 | 2001-01-10 | R C M Ankertec B V | Betonconstructie met ankerstaven alsmede ankerstaaf. |
DE20111793U1 (de) * | 2001-07-19 | 2001-09-20 | Schoeck Entwicklungsgmbh | Muffenverbindung für Betonstäbe |
EP1389658B1 (de) | 2002-08-13 | 2006-12-06 | HALFEN GmbH & CO. Kommanditgesellschaft | Schraubverbindung für kraftübertragende Stäbe |
CN1327094C (zh) * | 2005-06-27 | 2007-07-18 | 浙江工业大学 | 钢筋连接器 |
CN109505380B (zh) * | 2018-11-23 | 2021-03-02 | 北京五隆兴科技发展有限公司 | 钢筋连接器及其使用方法 |
CN111910837A (zh) * | 2020-07-31 | 2020-11-10 | 中国二十冶集团有限公司 | 一种装配式构件的钢筋接头连接结构 |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2205772B2 (de) * | 1972-02-08 | 1975-08-28 | Josef Dipl.-Ing. 8900 Augsburg Schmid | Vorrichtung zum Verbinden der koaxial angeordneten Bewehrungsstäbe von zwei Betonfertigteilen |
NO774364L (no) * | 1977-12-19 | 1978-06-21 | British Steel Corp | Skjoeteanordning for armeringsstaal. |
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 |
FR2639054B2 (fr) * | 1988-02-03 | 1992-07-03 | Techniport Sa | Perfectionnements apportes a la liaison mecanique de ronds a beton, procede de realisation de telles liaisons et rond a beton obtenu par la mise en oeuvre dudit procede |
US5491941A (en) * | 1994-09-28 | 1996-02-20 | Richmond Screw Anchor Company | Slippage controlled threaded rebar joint in reinforced concrete |
-
1996
- 1996-07-03 DE DE19626649A patent/DE19626649A1/de not_active Withdrawn
-
1997
- 1997-06-24 AT AT97110267T patent/ATE192815T1/de active
- 1997-06-24 ES ES97110267T patent/ES2147958T3/es not_active Expired - Lifetime
- 1997-06-24 DK DK97110267T patent/DK0816584T3/da active
- 1997-06-24 DE DE59701624T patent/DE59701624D1/de not_active Expired - Lifetime
- 1997-06-24 EP EP97110267A patent/EP0816584B1/de not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
EP0816584A1 (de) | 1998-01-07 |
ATE192815T1 (de) | 2000-05-15 |
DE19626649A1 (de) | 1998-01-08 |
DK0816584T3 (da) | 2000-09-11 |
ES2147958T3 (es) | 2000-10-01 |
DE59701624D1 (de) | 2000-06-15 |
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