AT386444B - RING WEDGE FOR FASTENING TENSIONS IN AN ANCHOR - Google Patents
RING WEDGE FOR FASTENING TENSIONS IN AN ANCHORInfo
- Publication number
- AT386444B AT386444B AT216684A AT216684A AT386444B AT 386444 B AT386444 B AT 386444B AT 216684 A AT216684 A AT 216684A AT 216684 A AT216684 A AT 216684A AT 386444 B AT386444 B AT 386444B
- Authority
- AT
- Austria
- Prior art keywords
- anchor
- tensions
- fastening
- ring wedge
- wedge
- Prior art date
Links
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
- E04C5/122—Anchoring devices the tensile members are anchored by wedge-action
Landscapes
- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Insulation, Fastening Of Motor, Generator Windings (AREA)
Description
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EMI1.1
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Während bei den bekannten Keilen zumindest die Keillänge plus ein zusätzliches Mass aus dem Anker --11-- herausgezogen werden muss. Für eine Rückhaltevorrichtung kann bei der Er- findung der Keil nur ein Stückchen herausgezogen werden, um die Rückhaltevorrichtung zwischen die Flächen --12 und 14-- einsetzen zu können. Für hohe Zugspannungen am Spannglied --3-ist eine Möglichkeit vorhanden, für das Lösen des Ringkeils noch eine weitere Zugspannung dem Spannglied --3-- aufzuerlegen.
Für diesen Zweck können zwischen Anker --11-- und Anker- platte --16-- Unterlagsringe --15-- vorgesehen sein, nach deren Entfernen die Vorspannung der Litze --3-- entsprechend ermässig werden kann, so dass die Litze in der Folge, wie bereits früher erwähnt, mit dem Ringkeil absatzweise gespannt werden kann, wobei jeweils zwischen den Flächen-12 und 14-- ein Unterlagsring eingesetzt werden kann. Diese Manipulation könnte auch über eine Stellmutter gemacht werden. In diesem Fall müsste an der Aussenwand --17-- des Ankers --11-- ein Gewinde vorgesehen sein, auf welches, wie strichliert dargestellt ist, die Stellmutter --18-- aufgeschraubt würde, so dass sie sich auf der Ankerplatte --16-- abstützt.
Durch Verdrehen der Stellmutter --18-- kann das Spannglied --3--, welches stabartig als Litze oder als Bündel aus Drähten oder Litzen ausgebildet sein kann, absatzweise gespannt werden.
Selbstverständlich können im Rahmen der Erfindung verschiedene konstruktive Abänderungen vorgesehen sein. So besteht die Möglichkeit, an Stelle eines hutförmigen Fortsatzes --5-- mehrere radial abstehende, allenfalls sternförmig angeordnete Fortsätze od. dgl. vorzusehen.
PATENTANSPRÜCHE :
1. Ringkeil zum Festlegen von Spanngliedern in einem Anker, bestehend aus einem geschlitzten Hohlkonus oder aus mehreren Konussegmenten, wobei der Hohlkonus bzw. jedes Konussegment bei seinem dickeren Ende mindestens einen radial nach aussen abstehenden Fortsatz aufweist, dadurch gekennzeichnet, dass zwischen dem dickeren Ende des Hohlkonus bzw. jedes Konussegments und dem Fortsatz (5) ein vorzugsweise nach einer Zylinderfläche verlaufender Zwischenabschnitt (7) vorbestimmter Höhe vorgesehen ist, so dass nach dem Einsetzen des Keils (1) in den Anker (11) ein ringförmiger Zwischenraum (12) zwischen dem Anker (11) und dem Fortsatz (5) verbleibt.
EMI2.1
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EMI1.1
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While with the known wedges at least the wedge length plus an additional dimension must be pulled out of the anchor --11--. For a restraint device, the wedge can only be pulled out a little in order to be able to insert the restraint device between the surfaces --12 and 14--. For high tensile stresses on tendon --3-there is a possibility to apply another tensile stress on tendon --3-- to loosen the ring wedge.
For this purpose, between the anchor --11-- and anchor plate --16-- underlay rings --15-- can be provided, after removal of which the prestressing of the strand --3-- can be reduced accordingly, so that the strand subsequently, as already mentioned earlier, the ring wedge can be tensioned in sections, whereby a washer can be inserted between the surfaces 12 and 14. This manipulation could also be done using an adjusting nut. In this case, a thread would have to be provided on the outer wall --17-- of the anchor --11--, onto which, as shown in dashed lines, the adjusting nut --18-- would be screwed so that it would rest on the anchor plate - -16-- supports.
By turning the adjusting nut --18--, the tendon --3--, which can be rod-shaped as a strand or as a bundle of wires or strands, can be tensioned in sections.
Of course, various design modifications can be provided within the scope of the invention. So it is possible to provide several radially protruding, possibly star-shaped extensions or the like instead of a hat-shaped extension -5.
PATENT CLAIMS:
1. Ring wedge for fixing tendons in an anchor, consisting of a slotted hollow cone or of several cone segments, the hollow cone or each cone segment having at least one radially outwardly projecting extension at its thicker end, characterized in that between the thicker end of the Hollow cone or each cone segment and the extension (5) a preferably extending after a cylindrical surface intermediate section (7) of predetermined height is provided, so that after the insertion of the wedge (1) in the armature (11) an annular space (12) between the Anchor (11) and the extension (5) remains.
EMI2.1
Claims (1)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
AT216684A AT386444B (en) | 1984-07-05 | 1984-07-05 | RING WEDGE FOR FASTENING TENSIONS IN AN ANCHOR |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
AT216684A AT386444B (en) | 1984-07-05 | 1984-07-05 | RING WEDGE FOR FASTENING TENSIONS IN AN ANCHOR |
Publications (2)
Publication Number | Publication Date |
---|---|
ATA216684A ATA216684A (en) | 1988-01-15 |
AT386444B true AT386444B (en) | 1988-08-25 |
Family
ID=3529155
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
AT216684A AT386444B (en) | 1984-07-05 | 1984-07-05 | RING WEDGE FOR FASTENING TENSIONS IN AN ANCHOR |
Country Status (1)
Country | Link |
---|---|
AT (1) | AT386444B (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN102644378A (en) * | 2012-05-05 | 2012-08-22 | 武汉常博建设集团有限公司 | Method and clamping device for embedding rebar of framework structure perpendicular to stand column surface |
CN104047398A (en) * | 2014-05-30 | 2014-09-17 | 柳州泰姆预应力机械有限公司 | Automatic clamping piece of tool anchor |
WO2015189225A1 (en) * | 2014-06-10 | 2015-12-17 | Firep Rebar Technology Gmbh | High-strength fastening device |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1255274B (en) * | 1962-08-06 | 1967-11-30 | Rudolf Buehrer Dipl Ing | Anchoring for profiled reinforcement bars in reinforced concrete or prestressed concrete structures |
DE1911798A1 (en) * | 1968-03-11 | 1969-10-09 | Brandestini Antonio | Anchoring for wire strands |
DE1926174A1 (en) * | 1968-05-22 | 1970-02-05 | Jawerth Karl David Richard | Anchoring device, preferably for anchoring wires or ropes to other links |
AT357314B (en) * | 1975-08-23 | 1980-07-10 | Dyckerhoff & Widmann Ag | NUT FOR ANCHORING A THREADED TENSIONING BAR FOR TAPERED CONCRETE |
-
1984
- 1984-07-05 AT AT216684A patent/AT386444B/en not_active IP Right Cessation
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1255274B (en) * | 1962-08-06 | 1967-11-30 | Rudolf Buehrer Dipl Ing | Anchoring for profiled reinforcement bars in reinforced concrete or prestressed concrete structures |
DE1911798A1 (en) * | 1968-03-11 | 1969-10-09 | Brandestini Antonio | Anchoring for wire strands |
DE1926174A1 (en) * | 1968-05-22 | 1970-02-05 | Jawerth Karl David Richard | Anchoring device, preferably for anchoring wires or ropes to other links |
AT357314B (en) * | 1975-08-23 | 1980-07-10 | Dyckerhoff & Widmann Ag | NUT FOR ANCHORING A THREADED TENSIONING BAR FOR TAPERED CONCRETE |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN102644378A (en) * | 2012-05-05 | 2012-08-22 | 武汉常博建设集团有限公司 | Method and clamping device for embedding rebar of framework structure perpendicular to stand column surface |
CN102644378B (en) * | 2012-05-05 | 2014-08-06 | 武汉常博建设集团有限公司 | Method and clamping device for embedding rebar of framework structure perpendicular to stand column surface |
CN104047398A (en) * | 2014-05-30 | 2014-09-17 | 柳州泰姆预应力机械有限公司 | Automatic clamping piece of tool anchor |
WO2015189225A1 (en) * | 2014-06-10 | 2015-12-17 | Firep Rebar Technology Gmbh | High-strength fastening device |
Also Published As
Publication number | Publication date |
---|---|
ATA216684A (en) | 1988-01-15 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
ELJ | Ceased due to non-payment of the annual fee | ||
UEP | Publication of translation of european patent specification |