US3766609A - Anchoring body for key anchoring tension members - Google Patents
Anchoring body for key anchoring tension members Download PDFInfo
- Publication number
- US3766609A US3766609A US00862774A US3766609DA US3766609A US 3766609 A US3766609 A US 3766609A US 00862774 A US00862774 A US 00862774A US 3766609D A US3766609D A US 3766609DA US 3766609 A US3766609 A US 3766609A
- Authority
- US
- United States
- Prior art keywords
- tendon
- passage
- anchoring
- section
- anchorage
- 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
- E04C5/08—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
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T24/00—Buckles, buttons, clasps, etc.
- Y10T24/39—Cord and rope holders
Definitions
- the present invention relates to an anchorage body for anchoring tendons with wedges, such as strands, having a central passage for the tendon, at least one section ,of which passage widening conically from the inlet end to the outlet end in order to form a seat for wedges.
- Such anchorage bodies for tendons do not fulfill all conditions as end anchorages inserted in the formwork or shuttering.
- the present invention has for its object to provide an anchorage body which avoids the above-mentioned disadvantages.
- the anchorage body according to the invention is characterised in that the first section of the passage, adjacent the inlet opening, tapers conically in order to form a seat fora centering and sealing-element to be inserted between tendon and anchorage body.
- FIG. 1 shows a longitudinal section through an end anchorage by means of an anchorage body according to the invention.
- FIG. la is a front view of the anchorage according to FIG. 1.
- FIG. 2 shows a longitudinal section through the inlet sectionof a similar anchorage.
- FIG. 3 shows a section through the inlet opening of a further embodiment of an anchorage
- FIGS. 4 and 5 show longitudinal, sections through'two anchorages in finished state.
- the tendon 1 (together with sheathing 1a) must be exactly centered at the inlet point A in the anchorage body, so that when the tendon. is later stressed, this centering remains true.
- the anchorage body 2 must be fixable in the correct position, immovable with respect to the shuttering or formwork 7, so that, during concreting, the position of the anchorage body remains unaltered and said shuttering or formwork may easily be removed after the concrete has hardened.
- conditions A and B are fulfilled (FIGS. 1-5), in that the anchorage body has on its rear side A an extension 2a internally provided with a conical recess 2b, which tapers in direction B.
- a tubular resilient sealing body 4 is pressed in direction B into said recess.
- a local constriction 2c of the conical recess 2b can prevent the penetration of the sealing body 4 into the wedge space 3a.
- the inner diameter of the constriction 2c must however be considerably larger than the outer diameter of the tendon, since it must berpossible to push said tendon through this constriction without difficulty.
- considerable thickenings are often formed at the ends thereof due to cutting by means of cutting torches, which thickenings must be guided through the constriction 20.
- a centering of the tendon by means of this constriction must therefore be omitted, for practical reasons.
- the sealing body 4 may be composed of rubber, plastic material or even metal; it may also be provided with a longitudinal slit at least at one place over at least a certain length.
- the seal at point A can be additionally reinforced by the interposition of a sealing ring 5 (FIG. 1,2) made of soft material.
- a ring 5a consisting for example of two parts may be placed on the constriction 2c as centering means (FIG. 3), before the seal 4 is pressed in.
- the sealing body 4 may be of any desired length.
- the tendon here consists of a strand with a lubricating and rust-protection coating and a paper sheathing la.
- the tendon may however also pass through a rigid conduit (e.g. metal hose) 1b (FIG. 2), the space between tendon and sheathing being grouted after stressing.
- the seal 4a between the conduit and the anchorage body 2, 2a may in this case be constructed as shown in FIG. 2, and it may also take over the function of a connecting piece, i.e., may be provided with another inlet opening 412 for the connection of the pipe for the grout.
- the sealing body 4 may also be additionally glued to the conical inner face 2b.
- This inner face may have a rough surface for better adhesion.
- the anchorage body 2 is securely connected (for example by screwing) to a holding sleeve 6 (FIGS. 1-5).
- the shuttering or formwork 7 is for its part securely connected to the holding sleeve 6 by being pressed against the shoulder 6b of the holding sleeve 6 by means of the nut 6d. It is important that the holding sleeve 6 is not only securely, but also tightly connected to the anchorage body 2. It is shown that when using a suitable plastic material, a multiple thread 6f is sufficient for the seal against grout penetrating in to the wedge space 3a. In order to increase the seal, the teeth of the thread or the surface 6b and 6g may be provided with thin fins which are pressed together when the holding sleeve 6 is screwed in and thereby improve the seal.
- the holding sleeve 6 is removed, this being simplified by the cone 6a.
- the finished anchorage is shown in FIG. 4.
- FIG. 5 shows the same anchorage when it is not to be fixed against a shuttering or formwork, but is to lie inside the concrete structure as so-called fixed anchorage.
- the wedges 3 are from the beginning firmly seated in the wedge space 3a and the tendon will thereby be anchoraged.
- a cap 8 with spring 9 located inside the cap is screwed onto the anchorage body 2.
- the outer surface or side of the conically tapering section may be provided with a thread 10.
- An anchoring device for anchoring tendons with wedges comprising: an anchor body having a central passage therein for receiving said tendon, said passage having an inlet end, and outlet end, an outlet section of said passage widening conically toward said outlet end to form a seat for said wedges, and an inlet section of said passage widening conically toward said inlet end, the outer surface of said inlet section having a threaded portion; an annular shoulder between said inlet section and said outlet section; a centering and sealing element inserted between said tendon and the inner conical surface of said inlet section, whereby said centering and sealing element is seated on said inlet section and stopped against said annular shoulder to provide centering for said tendon and a seal between said tendon and said inlet section; and a holding sleeve for holding said anchor body to a fixed support and wherein said passage has a threaded widened part near said outlet end for removably securing said holding sleeve in said part of said passage.
Landscapes
- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Reinforcement Elements For Buildings (AREA)
- Manufacturing Of Tubular Articles Or Embedded Moulded Articles (AREA)
- Joining Of Building Structures In Genera (AREA)
- Piles And Underground Anchors (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CH461169A CH482080A (de) | 1969-03-26 | 1969-03-26 | Ankerkörper für Spannglieder |
Publications (1)
Publication Number | Publication Date |
---|---|
US3766609A true US3766609A (en) | 1973-10-23 |
Family
ID=4279323
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US00862774A Expired - Lifetime US3766609A (en) | 1969-03-26 | 1969-10-01 | Anchoring body for key anchoring tension members |
Country Status (15)
Country | Link |
---|---|
US (1) | US3766609A (sv) |
JP (1) | JPS5421660B1 (sv) |
AT (1) | AT314163B (sv) |
BE (1) | BE747993A (sv) |
BR (1) | BR7017793D0 (sv) |
CA (1) | CA993633A (sv) |
CH (1) | CH482080A (sv) |
DE (1) | DE1958458C3 (sv) |
DK (1) | DK135637B (sv) |
ES (1) | ES377972A1 (sv) |
FR (1) | FR2035896B1 (sv) |
GB (1) | GB1294895A (sv) |
IL (1) | IL34104A (sv) |
NL (1) | NL164926C (sv) |
NO (1) | NO127067B (sv) |
Cited By (14)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4362421A (en) * | 1980-03-17 | 1982-12-07 | Kelly William F | Anchor for use in the post-tensioning of prestressed concrete |
US4773198A (en) * | 1986-09-05 | 1988-09-27 | Continental Concrete Structures, Inc. | Post-tensioning anchorages for aggressive environments |
US4799307A (en) * | 1986-05-30 | 1989-01-24 | Tech Research, Inc. | Anchor apparatus for a tendon in prestressed concrete slab |
US20060033003A1 (en) * | 2004-08-12 | 2006-02-16 | Lomont Molding, Inc. D.B.A. Paragon Products | Pocket former |
ES2275397A1 (es) * | 2005-03-23 | 2007-06-01 | Tecnicas Del Pretensado Y Servicios Auxiliares, S.L. | Conjunto de anclaje de cables para estructuras postesadas o atirantadas. |
US20070289239A1 (en) * | 2006-06-20 | 2007-12-20 | Davis Energy Group, Inc. | Slab edge insulating form system and methods |
WO2016014207A1 (en) * | 2014-07-24 | 2016-01-28 | Sorkin Felix L | Cartridge for retaining a sheathing of a tendon within an anchor assembly |
US9604416B2 (en) | 2014-05-19 | 2017-03-28 | Felix Sorkin | Method of forming a post-tensioned concrete member utilizing a pocket former with keyway former |
US9827721B2 (en) | 2015-08-04 | 2017-11-28 | Felix Sorkin | Collapsible element pocket former |
US9869091B2 (en) | 2015-08-04 | 2018-01-16 | Felix Sorkin | Pocket cap for post-tensioned concrete member |
US9896845B2 (en) | 2015-08-04 | 2018-02-20 | Felix Sorkin | Spindle lock anchor for post tensioned concrete member |
US9932738B2 (en) | 2015-08-04 | 2018-04-03 | Felix Sorkin | Sheathing retention capsule |
US20180313086A1 (en) * | 2017-04-28 | 2018-11-01 | Actuant Corporation | Sealing cover for concrete anchor |
US10145114B2 (en) | 2015-08-04 | 2018-12-04 | Felix Sorkin | Sheathing lock end cap |
Families Citing this family (13)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE8002044U1 (de) * | 1980-01-26 | 1980-04-30 | Dyckerhoff & Widmann Ag, 8000 Muenchen | Keilverankerung fuer ein spannglied in einem betonbauteil |
DE3224702C2 (de) * | 1982-07-02 | 1986-01-16 | Dyckerhoff & Widmann AG, 8000 München | Vorrichtung zum Verankern und Koppeln eines Bündelspannglieds für Spannbeton |
FR2544768B1 (fr) * | 1983-04-19 | 1985-08-16 | Freyssinet Int Stup | Perfectionnements aux procedes et dispositifs pour graisser les extremites d'armatures de precontrainte |
CH662595A5 (de) * | 1983-08-22 | 1987-10-15 | Losinger Ag | Verankerung von freischwingenden zugelementen aus stahl eines dynamisch beanspruchten bauteiles. |
DE3438865C1 (de) * | 1984-10-24 | 1986-04-03 | Dyckerhoff & Widmann AG, 8000 München | Keilverankerung fuer die Anspannseite eines Einzelspannglieds fuer ein Spannbetonbauteil |
US4674255A (en) * | 1985-05-20 | 1987-06-23 | Snap Seal | Sealing plug for a cone-type rod opening in concrete walls and the like |
US4616458A (en) * | 1985-07-01 | 1986-10-14 | Vsl Corporation | Protective apparatus for tendons in tendon tensioning anchor assemblies |
US4918887A (en) * | 1987-10-14 | 1990-04-24 | Vsl Corporation | Protective tendon tensioning anchor assemblies |
DE4015093A1 (de) * | 1990-05-11 | 1991-11-14 | Emil Bonato | Zwischenanker fuer schleuderbetonformen zur herstellung von rohrfoermigen spannbetonkoerpern |
DE9415690U1 (de) * | 1994-09-28 | 1994-11-24 | Döllen, Heinz von, 58239 Schwerte | Spanneinrichtung |
JP6366237B2 (ja) * | 2013-08-09 | 2018-08-01 | 三菱電機株式会社 | 冷蔵庫 |
EP3128096B1 (en) * | 2015-08-04 | 2018-11-07 | Felix L. Sorkin | Method for forming a post-tensioned concrete member |
CN105128154B (zh) * | 2015-09-17 | 2017-01-18 | 崔景宽 | 一种螺纹连接的后锚固施工方法及加工设备 |
Citations (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US1710416A (en) * | 1927-04-16 | 1929-04-23 | Robert A Goeller | Connecter |
US1817774A (en) * | 1928-05-02 | 1931-08-04 | Harry E Sipe | Tubular coupling and method of constructing the same |
US2406235A (en) * | 1944-02-25 | 1946-08-20 | Locke Insulator Corp | Porcelain pipe |
US2823248A (en) * | 1953-09-29 | 1958-02-11 | Amphenol Electronics Corp | Self-sealing cable clamp |
US3137971A (en) * | 1959-07-15 | 1964-06-23 | Cable Covers Ltd | Stressed concrete structures |
CA713750A (en) * | 1965-07-20 | Rhodes Brian | Anchor grips, couplings or connectors for tensioning wires rods, strands and the like | |
US3326791A (en) * | 1962-05-26 | 1967-06-20 | Contre La Corrosion S E C C O | Method and structure for connecting electrodes to feed cables |
US3384704A (en) * | 1965-07-26 | 1968-05-21 | Amp Inc | Connector for composite cables |
US3449876A (en) * | 1968-02-21 | 1969-06-17 | George H Howlett | Tendon anchorage |
Family Cites Families (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB704094A (en) * | 1951-05-15 | 1954-02-17 | British Transp Commission | Improvements relating to anchorages for prestressing elements used in concrete |
US3399434A (en) * | 1965-09-27 | 1968-09-03 | William F. Kelly | Anchors for stressed cables |
-
1969
- 1969-03-26 CH CH461169A patent/CH482080A/de not_active IP Right Cessation
- 1969-10-01 US US00862774A patent/US3766609A/en not_active Expired - Lifetime
- 1969-11-19 GB GB1294895D patent/GB1294895A/en not_active Expired
- 1969-11-21 DE DE1958458A patent/DE1958458C3/de not_active Expired
-
1970
- 1970-02-02 JP JP890070A patent/JPS5421660B1/ja active Pending
- 1970-03-18 AT AT251770A patent/AT314163B/de not_active IP Right Cessation
- 1970-03-18 IL IL34104A patent/IL34104A/en unknown
- 1970-03-23 FR FR707010408A patent/FR2035896B1/fr not_active Expired
- 1970-03-23 NL NL7004097.A patent/NL164926C/xx not_active IP Right Cessation
- 1970-03-25 ES ES377972A patent/ES377972A1/es not_active Expired
- 1970-03-25 NO NO1140/70A patent/NO127067B/no unknown
- 1970-03-25 BR BR217793/70A patent/BR7017793D0/pt unknown
- 1970-03-25 DK DK157870AA patent/DK135637B/da unknown
- 1970-03-26 CA CA078,568A patent/CA993633A/en not_active Expired
- 1970-03-26 BE BE747993D patent/BE747993A/xx not_active IP Right Cessation
Patent Citations (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CA713750A (en) * | 1965-07-20 | Rhodes Brian | Anchor grips, couplings or connectors for tensioning wires rods, strands and the like | |
US1710416A (en) * | 1927-04-16 | 1929-04-23 | Robert A Goeller | Connecter |
US1817774A (en) * | 1928-05-02 | 1931-08-04 | Harry E Sipe | Tubular coupling and method of constructing the same |
US2406235A (en) * | 1944-02-25 | 1946-08-20 | Locke Insulator Corp | Porcelain pipe |
US2823248A (en) * | 1953-09-29 | 1958-02-11 | Amphenol Electronics Corp | Self-sealing cable clamp |
US3137971A (en) * | 1959-07-15 | 1964-06-23 | Cable Covers Ltd | Stressed concrete structures |
US3326791A (en) * | 1962-05-26 | 1967-06-20 | Contre La Corrosion S E C C O | Method and structure for connecting electrodes to feed cables |
US3384704A (en) * | 1965-07-26 | 1968-05-21 | Amp Inc | Connector for composite cables |
US3449876A (en) * | 1968-02-21 | 1969-06-17 | George H Howlett | Tendon anchorage |
Cited By (23)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4362421A (en) * | 1980-03-17 | 1982-12-07 | Kelly William F | Anchor for use in the post-tensioning of prestressed concrete |
US4799307A (en) * | 1986-05-30 | 1989-01-24 | Tech Research, Inc. | Anchor apparatus for a tendon in prestressed concrete slab |
US4773198A (en) * | 1986-09-05 | 1988-09-27 | Continental Concrete Structures, Inc. | Post-tensioning anchorages for aggressive environments |
US20060033003A1 (en) * | 2004-08-12 | 2006-02-16 | Lomont Molding, Inc. D.B.A. Paragon Products | Pocket former |
US7216842B2 (en) * | 2004-08-12 | 2007-05-15 | Lomont Molding, Inc. | Pocket former |
ES2275397A1 (es) * | 2005-03-23 | 2007-06-01 | Tecnicas Del Pretensado Y Servicios Auxiliares, S.L. | Conjunto de anclaje de cables para estructuras postesadas o atirantadas. |
US20070289239A1 (en) * | 2006-06-20 | 2007-12-20 | Davis Energy Group, Inc. | Slab edge insulating form system and methods |
US7596915B2 (en) * | 2006-06-20 | 2009-10-06 | Davis Energy Group, Inc. | Slab edge insulating form system and methods |
US20170152660A1 (en) * | 2014-05-19 | 2017-06-01 | Felix Sorkin | Modified Pocket Former |
US9604416B2 (en) | 2014-05-19 | 2017-03-28 | Felix Sorkin | Method of forming a post-tensioned concrete member utilizing a pocket former with keyway former |
US10072429B2 (en) * | 2014-05-19 | 2018-09-11 | Felix Sorkin | Modified pocket former |
WO2016014207A1 (en) * | 2014-07-24 | 2016-01-28 | Sorkin Felix L | Cartridge for retaining a sheathing of a tendon within an anchor assembly |
US9869091B2 (en) | 2015-08-04 | 2018-01-16 | Felix Sorkin | Pocket cap for post-tensioned concrete member |
US9896845B2 (en) | 2015-08-04 | 2018-02-20 | Felix Sorkin | Spindle lock anchor for post tensioned concrete member |
US9932738B2 (en) | 2015-08-04 | 2018-04-03 | Felix Sorkin | Sheathing retention capsule |
US9827721B2 (en) | 2015-08-04 | 2017-11-28 | Felix Sorkin | Collapsible element pocket former |
US10071530B2 (en) * | 2015-08-04 | 2018-09-11 | Felix Sorkin | Collapsible element pocket former |
US10145114B2 (en) | 2015-08-04 | 2018-12-04 | Felix Sorkin | Sheathing lock end cap |
US20190024187A1 (en) * | 2015-08-04 | 2019-01-24 | Felix Sorkin | Collapsible element pocket former |
US10343354B2 (en) * | 2015-08-04 | 2019-07-09 | Felix Sorkin | Collapsible element pocket former |
US10500799B2 (en) * | 2015-08-04 | 2019-12-10 | Felix Sorkin | Collapsible element pocket former |
US20180313086A1 (en) * | 2017-04-28 | 2018-11-01 | Actuant Corporation | Sealing cover for concrete anchor |
US10508447B2 (en) * | 2017-04-28 | 2019-12-17 | Precision-Hayes International Inc. | Sealing cover for concrete anchor |
Also Published As
Publication number | Publication date |
---|---|
NL164926C (nl) | 1981-02-16 |
NO127067B (sv) | 1973-04-30 |
DK135637C (sv) | 1977-10-31 |
NL164926B (nl) | 1980-09-15 |
FR2035896B1 (sv) | 1974-03-01 |
IL34104A0 (en) | 1970-05-21 |
DE1958458A1 (de) | 1970-10-01 |
CH482080A (de) | 1969-11-30 |
ES377972A1 (es) | 1972-06-16 |
IL34104A (en) | 1973-10-25 |
BR7017793D0 (pt) | 1973-02-01 |
BE747993A (fr) | 1970-08-31 |
NL7004097A (sv) | 1970-09-29 |
FR2035896A1 (sv) | 1970-12-24 |
DE1958458B2 (de) | 1979-05-17 |
GB1294895A (sv) | 1972-11-01 |
DE1958458C3 (de) | 1980-10-09 |
DK135637B (da) | 1977-05-31 |
JPS5421660B1 (sv) | 1979-08-01 |
AT314163B (de) | 1974-03-25 |
CA993633A (en) | 1976-07-27 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
US3766609A (en) | Anchoring body for key anchoring tension members | |
US3956797A (en) | Anchorage body for anchoring tendons with wedges | |
US5630301A (en) | Anchorage assembly and method for post-tensioning in pre-stressed concrete structures | |
US5720139A (en) | Method and apparatus for installing a multi-strand anchorage system | |
US4363462A (en) | Recoverable formwork part for forming the anchoring location of a tendon in a concrete structural component | |
AU2011217385B2 (en) | Anchor system of a concrete wall formwork | |
US4718209A (en) | Wedge anchorage for a tension member in a prestressed concrete structure | |
EP0606820B1 (de) | Spannverankerung für mindestens ein innerhalb eines Hüllrohres verlaufendes Zugelement und Verfahren zum Herstellen der Spannverankerung | |
US4640068A (en) | Anchoring and coupling device for tendons in prestressed concrete | |
US6634147B2 (en) | Process for the installation and tensioning of a brace having a false bearing, in particular a stay cable for a cable-stayed bridge and anchoring device with which to carry out the process | |
US4619088A (en) | Stressed reinforcing tendon and structure including such a tendon | |
WO1997040242A1 (en) | Method and apparatus for forming an anchorage of a post-tension system | |
US3137971A (en) | Stressed concrete structures | |
US4744691A (en) | Anchoring means for tension members | |
US3605361A (en) | Tendon anchorage | |
US3685934A (en) | Anchorage system for stressing concrete | |
GB2094919A (en) | Expansion anchor bolt | |
GB2058989A (en) | Bottling arrangement | |
US3843288A (en) | Tendon anchorage with threaded support element | |
US4223497A (en) | Coupling assembly | |
JP2003055911A (ja) | 斜材ケーブルのサドル出口部における構造 | |
KR101900239B1 (ko) | 방수성능이 향상된 비부착식 포스트텐션 정착구 조립체 | |
US3447784A (en) | Apparatus for prestressing concrete | |
GB864170A (en) | Improvements in and relating to anchoring means for wire cables | |
US3921353A (en) | Tendon anchorage assembly and bore mounting apparatus therefor |