EP1503007B1 - Verfahren zur bewehrung einer baustruktur und verankerungsvorrichtung dafür - Google Patents

Verfahren zur bewehrung einer baustruktur und verankerungsvorrichtung dafür Download PDF

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Publication number
EP1503007B1
EP1503007B1 EP04291892.0A EP04291892A EP1503007B1 EP 1503007 B1 EP1503007 B1 EP 1503007B1 EP 04291892 A EP04291892 A EP 04291892A EP 1503007 B1 EP1503007 B1 EP 1503007B1
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EP
European Patent Office
Prior art keywords
anchoring device
anchoring
building element
fastening
prestressing
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
EP04291892.0A
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English (en)
French (fr)
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EP1503007A1 (de
Inventor
Jean-François Nieto
Christian Tourneur
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.)
Soletanche Freyssinet SA
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Soletanche Freyssinet SA
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 Soletanche Freyssinet SA filed Critical Soletanche Freyssinet SA
Publication of EP1503007A1 publication Critical patent/EP1503007A1/de
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Publication of EP1503007B1 publication Critical patent/EP1503007B1/de
Anticipated expiration legal-status Critical
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Classifications

    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
    • E04G21/00—Preparing, conveying, or working-up building materials or building elements in situ; Other devices or measures for constructional work
    • E04G21/12—Mounting of reinforcing inserts; Prestressing
    • 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
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
    • E04G23/00—Working measures on existing buildings
    • E04G23/02—Repairing, e.g. filling cracks; Restoring; Altering; Enlarging
    • E04G23/0218—Increasing or restoring the load-bearing capacity of building construction elements

Definitions

  • the present invention relates to the reinforcement of engineering structures. It relates more particularly to the reinforcement of engineering structures using the additional prestressing technique.
  • Additional prestressing is a known technique for reinforcing or repairing concrete or masonry structures, which has been the subject of standard NF P 95-104 (" Repair and reinforcement of concrete and masonry structures ", published in December 1992 by the French standardization association (afnor) ).
  • the reinforcements transmit the forces to the structure by means of anchors supported by pieces of hooped concrete or metal, called bosses, arranged in projection on elements of the structure, such as existing spacers, beams or walls.
  • these anchors are generally grafted by nailing using prestressing bars.
  • bosses are bulky pieces, which can either be cast in place or prefabricated. In both cases, however, the installation of the bosses proves to be difficult, in particular because of the difficulty of accessing the elements of the structure on which the bosses must rest. Openings or windows must sometimes be made in the structure to allow the installation of bosses.
  • the metal bosses are produced in the workshop to be adapted to each structure, which gives them a higher manufacturing quality than concrete bosses.
  • this bearing surface must be striated by machining or by welding of steel wires, which generates a high implementation cost.
  • the reinforcements pass through the bosses in which they are anchored.
  • Such anchoring is always carried out in the boss, on the side opposite to the current part of the reinforcements. It thus puts the boss in compression when the reinforcements are tensioned.
  • the figure 1 gives an example of such an anchor.
  • a boss 1 rests on a spacer 3 of the structure to be reinforced.
  • a prestressing reinforcement 2 crosses the boss 1 to be anchored there at its end opposite to the current part of the reinforcement 2.
  • the bosses provided for by the standard are also positioned at the ends of the structure to be reinforced so as to apply the additional preload over the greatest possible length. They are therefore often close to obstacles, such as walls, posts or spacers of the structure. This arrangement makes it difficult to install a cylinder for tensioning the armatures.
  • the boss can be placed near the obstacle, provided however to make an opening in this obstacle to allow the establishment of the jack.
  • the application of the resulting prestress is better than in the previous case, but this solution means that concrete destruction or coring work must be carried out.
  • An object of the present invention is to overcome the drawbacks of the current techniques mentioned above, by authorizing the application of prestressing on a good part of the structure element to be reinforced, while avoiding the implementation of destruction of part of the structure with a view to strengthening it.
  • Another object of the invention is to have an anchoring well suited to the structure to be reinforced, without requiring additional adaptation operations such as machining a bearing surface of the anchoring block on an element of the structure to be reinforced.
  • the invention thus provides an anchoring piece for anchoring, on a building element to be reinforced or repaired by additional prestressing, at least one prestressing reinforcement capable of being tensioned, the anchoring piece being in one piece and comprising fixing means on said construction element and means for anchoring the reinforcement adjacent to a first side of the part directed towards a running part of the reinforcement, such that the fixing means are adjacent to a second side of the piece located opposite the first side, the anchoring means comprising an orifice making it possible to receive at least one strand of said at least one prestressing reinforcement located in said first side, and a housing for receiving the end of the strand of so that, when the strand is tensioned, the strand exerts a tensile force on said first side while the fixing means retain the second side on the element to be reinforced cer, the housing being open on one face of the anchoring part separate from said first side.
  • this anchoring piece makes it possible to provide the desired compressive stress over the entire area considered.
  • the compressive stress is applied to the structure up to the fixing means, that is to say almost to the second side. This side can be placed very close to an obstacle which would hinder the implementation of conventional anchors.
  • the figure 2 shows an anchor 6 according to the invention. This part is suitable for anchoring a frame or a set of frames to reinforce a building element by additional prestressing.
  • the reinforcements used to carry out the prestressing are metallic. It may especially be strands 5 capable of being tensioned and forming a cable in their main part, that is to say between the anchoring zones.
  • the strands are generally protected from corrosion in their main part, for example by means of a sheath 4 of high density polyethylene (HDPE) surrounding the strands and injected with a cement grout or with a non-sticky flexible product, such as grease or wax.
  • HDPE high density polyethylene
  • the anchoring part 6 is monobloc and compact. It is advantageously made of cast iron. At one of its ends (right on the figure 2 ), it comprises an orifice making it possible to receive at least one strand 5 of the cable, the sheath of which stops at the entrance to the anchoring part.
  • a housing 8 is provided in the part 6 to receive the end of the strand 5. It is open on one face of the anchoring part 6, so that the end of the strand 5 anchored is accessible from outside the room 6.
  • the figure 3 more specifically shows an example of anchoring produced in part 6.
  • the strand 5 enters the anchoring part 6.
  • the end of the anchoring part receiving the strand has an orifice capable of receiving an anchoring jaw.
  • the orifice can for example be frustoconical, in which case the jaw 10 gets stuck in the orifice by conical wedging.
  • the part 6 made of cast iron can be molded to present orifices allowing sealing of the connections of the sheath 4 of the prestressing cable with the part 6.
  • a connection tube 9 as well as seals sealing can then be placed in these holes at the entrance of the part 6 to ensure such sealing.
  • the anchoring piece 6 also has means for fixing to the building element to be reinforced or repaired, which may for example be a floor of an industrial building.
  • the figure 4 shows an example of fixing the anchoring part 6 on a floor 12.
  • the fixing of the part 6 can for example be carried out by nailing one or more prestressing bars 14 on the floor 12.
  • orifices 7 can be provided in part 6 to allow the introduction of the prestressing bars.
  • the anchoring part 6 is produced so as to be able to be fixed to the element to be reinforced, in its part opposite to the anchoring of the strand 5, that is to say in the part of the part 6 furthest from the current part of the prestressing cable.
  • the orifices 7 suitable for receiving the prestressing bars 14 are located in the left part of the part 6.
  • the anchoring part 6, as shown in the figure 4 is put in tension when the strand 5 is tensioned. Indeed, the strand 5 exerts a tensile force on the right part of the part 6 in the direction of the current part of the cable, while the part 6 is retained on the floor 12 thanks to the nailing carried out in its left part.
  • This type of anchoring differs therefore conventional bosses 1 as shown on the figure 1 , which are compressed against a structural element by the effect of the force exerted by the tensioned prestressing cable 2.
  • the assembly thus formed therefore makes it possible to transmit to the structure to be reinforced, the result of the nailing and tensioning forces.
  • the anchoring part 6, fixed to the concrete floor 12 has a bearing surface with the construction element, comprising molded ridges.
  • Such molding of the cast iron makes it possible to obtain effective attachment of the part 6 to the concrete, without having to carry out additional costly operations, for example machining of the part 6.
  • the arrangement provided by the invention is particularly advantageous since it makes it possible to tension the strand 5, without having to move aside the anchoring of the wall or of the obstacle 13 which faces away from the anchoring part 6.
  • the end of the strand 5 is accessible at the level of the housing 8 of the part 6, which is located at a distance from the part attachment zone (illustrated by the orifices 7).
  • a tensioning cylinder, equipped with a curved nose can easily be installed in the space available under the part 6. This thus avoids the need for destruction or coring work of the wall 13, in order to be able to tension the strand. 5, unlike what happens with the usual bosses.
  • a cover or a protective sheath 11 can be installed to protect the end of the strand 5 from its exit from the housing 8, as illustrated in the figure 4 .
  • the prestressing bars "nailing" the anchoring parts to the structure may not be enough to fully anchor the cable stress on the structure by friction, because the coefficient of friction notched cast iron on concrete (of the order of 0.6) imposes a very high nailing force.
  • the direct support is for example obtained using a recess 17 provided in the form of a hole not opening on the face of the anchoring piece which is intended to be applied against the structure ( figure 2 ).
  • an abutment stud of shape complementary to that of the recess 17 is fixed on the structure.
  • any play at the stud should be avoided, this which is obtained by injecting the recess 17 with a sealing product when the anchoring part 6 is put in place.
  • This sealing product is for example a pasty resin or a mortar.

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  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • Reinforcement Elements For Buildings (AREA)
  • Working Measures On Existing Buildindgs (AREA)
  • Bridges Or Land Bridges (AREA)

Claims (15)

  1. Verankerungsvorrichtung (6) zum Verankern mindestens einer spannbaren Vorspannungsbewehrung an einem durch zusätzliche Vorspannung zu verstärkenden oder zu reparierenden Bauelement (12), wobei die Verankerungsvorrichtung (6) einstückig ist und Befestigungseinrichtungen für ihre Befestigung an dem Bauelement und Verankerungseinrichtungen zum Verankern der Bewehrung aufweist, wobei die Verankerungseinrichtungen angrenzend an eine zu einem laufenden Teil der Bewehrung hin gerichtete erste Seite der Vorrichtung sind und die Befestigungseinrichtungen angrenzend an eine der ersten Seite gegenüberliegende zweite Seite der Vorrichtung sind, wobei die Verankerungseinrichtungen eine in der ersten Seite gelegene Öffnung aufweisen, die erlaubt, mindestens eine Litze (5) der mindestens einen Vorspannungsbewehrung zu empfangen, sowie eine Kammer (8) aufweisen, um das Ende der Litze (5) derart aufzunehmen, dass, wenn die Litze (6) gespannt ist, die Litze (5) eine Zugkraft auf die erste Seite ausübt, während die Befestigungseinrichtungen die zweite Seite an dem zu verstärkenden Element (12) festhalten, wobei die Kammer (8) an einer Fläche der Verankerungsvorrichtung (6), die nicht die erste Seite ist, offen ist.
  2. Verankerungsvorrichtung nach Anspruch 1, dadurch gekennzeichnet, dass sie aus Gusseisen ist.
  3. Verankerungsvorrichtung nach Anspruch 1 oder 2, in welcher die Befestigungseinrichtungen aufweisen: Einrichtungen zum Festnageln an dem Bauelement unter Verwendung mindestens eines Vorspannungsstabs (14).
  4. Verankerungsvorrichtung nach einem der vorstehenden Ansprüche, in welcher die für das Befestigen an dem Bauelement vorgesehenen Befestigungseinrichtungen in mindestens einer Öffnung (7) der Verankerungsvorrichtung eingesetzt sind.
  5. Verankerungsvorrichtung nach einem der vorstehenden Ansprüche, aufweisend eine an das Bauelement (12) anzulegende Anlagefläche, wobei die Anlagefläche geformte Riefen aufweist.
  6. Verankerungsvorrichtung nach einem der vorstehenden Ansprüche, in welcher die Verankerungsvorrichtung mittels der Befestigungseinrichtungen derart an dem Bauelement (12) befestigt ist, dass sie im Wesentlichen in der Nähe eines einem laufenden Teil der Bewehrung gegenüberliegenden Hindernisses des Bauelements angeordnet ist.
  7. Verankerungsvorrichtung nach einem der vorstehenden Ansprüche, in welcher die Verankerungsvorrichtung die mindestens eine an die erste Seite angrenzende Öffnung aufweist, die eine dichte Verbindung mit einer ein Vorspannungskabel der Bewehrung umgebenden Hülle (4) sicherstellt.
  8. Verankerungsvorrichtung nach einem der vorstehenden Ansprüche, ferner aufweisend Einrichtungen (17) zur direkten Anlage an ein an dem Bauelement befestigtes Anschlagelement.
  9. Verfahren zum Verstärken oder zum Reparieren einer Baustruktur durch zusätzliche Vorspannung, aufweisend die folgenden Schritte:
    - Befestigen mindestens einer Verankerungsvorrichtung (6) nach einem der vorstehenden Ansprüche an einem Bauelement (12) der Baustruktur;
    - Setzen der Vorspannungsbewehrung unter Spannung; und
    - Verankern der Vorspannungsbewehrung in dem Abschnitt der Verankerungsvorrichtung, derart, dass, wenn die Litze (5) gespannt ist, die Litze (5) eine Zugspannung auf die erste Seite ausübt, während die Befestigungseinrichtungen die zweite Seite an dem zu verstärkenden Element (12) festhalten.
  10. Verfahren nach Anspruch 9, in welchem das Befestigen der Verankerungsvorrichtung (6) an dem Bauelement (12) ein Festnageln unter Verwendung mindestens eines Vorspannungsstabs (14) aufweist.
  11. Verfahren nach einem der Ansprüche 9 bis 10, in welchem das Befestigen der Verankerungsvorrichtung (6) an dem Bauelement (12) ein Einsetzen von Befestigungseinrichtungen in mindestens eine Öffnung (7) der Verankerungsvorrichtung aufweist.
  12. Verfahren nach einem der Ansprüche 9 bis 11, in welchem das Befestigen der Verankerungsvorrichtung (6) an dem Bauelement (12) das Anlegen einer mit geformten Riefen versehenen Anlagefläche der Verankerungsvorrichtung an dem Bauelement aufweist.
  13. Verfahren nach einem der Ansprüche 9 bis 12, in welchem das Bauelement (12) ein einem laufenden Teil der Bewehrung gegenüberliegendes Hindernis (13) aufweist, und in welchem das Befestigen der Verankerungsvorrichtung (6) an dem Bauelement derart erfolgt, dass die Verankerungsvorrichtung im Wesentlichen in der Nähe des Hindernisses angeordnet ist.
  14. Verfahren nach einem der Ansprüche 9 bis 13, in welchem die Verankerung der Bewehrung ein Einführen des Endes der Bewehrung in die Öffnung des Abschnitts der Verankerungsvorrichtung (6) aufweist, die fähig ist, eine solche Verankerung durchzuführen, dass eine dichte Verbindung zwischen der Verankerungsvorrichtung und der Hülle (4) des Kabels gewährleistet ist.
  15. Verfahren nach einem der Ansprüche 9 bis 14, in welchem ferner an dem Bauelement ein Anschlagelement befestigt wird, um mit an der Verankerungsvorrichtung (6) vorgesehenen Anlageeinrichtungen (17) zusammenzuwirken, und in welchem in dem Augenblick, wo die Verankerungsvorrichtung an dem Bauelement (12) positioniert wird, ein Versiegelungsprodukt zwischen dem Anschlagelement und den Anlageeinrichtungen injiziert wird.
EP04291892.0A 2003-07-28 2004-07-23 Verfahren zur bewehrung einer baustruktur und verankerungsvorrichtung dafür Expired - Lifetime EP1503007B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR0309225 2003-07-28
FR0309225A FR2858345B1 (fr) 2003-07-28 2003-07-28 Procede de renforcement d'un ouvrage d'art et piece d'ancrage associee

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EP1503007A1 EP1503007A1 (de) 2005-02-02
EP1503007B1 true EP1503007B1 (de) 2020-01-15

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US (2) US8104246B2 (de)
EP (1) EP1503007B1 (de)
JP (1) JP4563747B2 (de)
ES (1) ES2782349T3 (de)
FR (1) FR2858345B1 (de)

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20050288766A1 (en) * 2004-06-28 2005-12-29 Xtent, Inc. Devices and methods for controlling expandable prostheses during deployment
JP5014236B2 (ja) * 2008-04-22 2012-08-29 三井住友建設株式会社 外ケーブル定着構造
US9874238B2 (en) 2013-04-24 2018-01-23 Shimano Inc. Bicycle end cap
EP3146121A4 (de) 2014-05-19 2018-01-24 Felix L. Sorkin Modifizierter taschenformer
US9827721B2 (en) * 2015-08-04 2017-11-28 Felix Sorkin Collapsible element pocket former
WO2017023937A1 (en) 2015-08-04 2017-02-09 Felix Sorkin Sheathing retention capsule
WO2017023922A1 (en) 2015-08-04 2017-02-09 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
US10145114B2 (en) 2015-08-04 2018-12-04 Felix Sorkin Sheathing lock end cap
CN109184199B (zh) * 2018-10-23 2021-01-26 五冶集团上海有限公司 3m预应力拱板现浇施工时圈梁抗扭抗剪加固方法
CN112049457B (zh) * 2020-09-08 2021-09-17 中国航空规划设计研究总院有限公司 用于古建筑砌体柱的防震拉索的选取方法及防震拉索系统

Family Cites Families (96)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US742332A (en) * 1903-04-11 1903-10-27 John Kunny Ratchet-clutch for drilling-swivels.
US1107889A (en) * 1914-01-30 1914-08-18 Joseph Burns Wire-line rope-socket.
US1746879A (en) * 1925-05-21 1930-02-11 Aluminum Co Of America Dead-end fixture for cables
US1686424A (en) * 1928-02-01 1928-10-02 Thomson John Malcolm Fastening device
US1958747A (en) * 1930-07-28 1934-05-15 Henry C Fiege Ground connection device
US1909332A (en) * 1931-11-02 1933-05-16 Blackburn Jasper Guard rail fitting
US2163677A (en) * 1933-04-29 1939-06-27 Robert A Goeller Connector
US2057881A (en) * 1935-06-15 1936-10-20 Edgar R Creamer Cord fastening
US2205348A (en) * 1935-07-19 1940-06-18 Cinch Mfg Corp Cord-anchoring device
US2211615A (en) * 1939-05-22 1940-08-13 American Steel & Wire Co Terminal connection for elongated flexible interconnecting members
US2270240A (en) * 1939-08-26 1942-01-20 Freyssinet Eugene Anchoring of tensioned cables in concrete constructions
US2371882A (en) * 1940-10-28 1945-03-20 Freyssinet Eugene Tensioning and anchoring of cables in concrete or similar structures
US2294398A (en) * 1940-12-10 1942-09-01 Ralph M Ferguson Terminal fitting for flexible or semiflexible cable
US2328033A (en) * 1941-08-14 1943-08-31 Schorer Herman Prestressing reinforcing device for concrete
NL61228C (de) * 1943-09-30
GB616418A (en) * 1946-09-05 1949-01-20 William James Streader Improvements in or relating to anchorages for cables
US2614801A (en) * 1950-07-26 1952-10-21 Aircraft Hardware Mfg Co Inc Wire holding and prestressing device
US2668280A (en) * 1951-08-21 1954-02-02 Burndy Engineering Co Inc Dead-end splice connector
GB846346A (en) * 1957-03-25 1960-08-31 Reinforcing Steel Company Prop Improvements in and relating to anchorage means for prestressing and post-tensioning cables and the like
US3255558A (en) * 1962-07-20 1966-06-14 Prescon Corp Methods of and means for prestressing concrete
US3205300A (en) * 1964-05-15 1965-09-07 Fargo Mfg Co Inc Cable gripping funit
US3293811A (en) * 1965-06-01 1966-12-27 Edward K Rice Anchorage for concrete stressing tendons
US3399434A (en) * 1965-09-27 1968-09-03 William F. Kelly Anchors for stressed cables
US3551959A (en) * 1968-05-16 1971-01-05 Fanner Mfg Co Detachable socketed dead end
US3462543A (en) * 1968-06-12 1969-08-19 Amp Inc Electrical terminals to terminate conductor members
US3524228A (en) * 1968-07-09 1970-08-18 William F Kelly Anchor for post-tensioning prestressed concrete
US3795949A (en) * 1968-11-06 1974-03-12 Pre Stress Pioneers Ltd Post-stressing of reinforced concrete structures
US3606231A (en) * 1969-10-02 1971-09-20 John Kilborn Anchor support
US3685934A (en) * 1969-10-06 1972-08-22 Conenco Intern Ltd Anchorage system for stressing concrete
GB1270718A (en) * 1969-10-16 1972-04-12 Ccl Systems Ltd Improvements in or relating to the prestressing of concrete structures
US3762027A (en) * 1970-05-18 1973-10-02 Reliable Electric Co Method of post-tensioning prestressed concrete
US3895879A (en) * 1970-05-18 1975-07-22 Reliable Electric Co Combined post tensioning anchor and cable
US3703748A (en) * 1970-08-14 1972-11-28 Kelly Systems Inc Anchor for post-tensioning prestressed concrete
CA941137A (en) * 1970-08-19 1974-02-05 Robin A.C. Shorter Anchor head for post-stressed reinforced concrete structures
US3705376A (en) * 1970-11-25 1972-12-05 Amp Inc Connector with releasable spring contact and releasing tool
US4053974A (en) * 1971-03-01 1977-10-18 Conenco International Limited Method of forming a concrete structure with a recess to receive an anchorage
USRE27954E (en) * 1971-11-19 1974-04-02 Anchor for post-tensioning frestressed concrete
US3937607A (en) * 1972-07-03 1976-02-10 Reliable Electric Company Post-tensioning anchors assembled in combination with a spacer strip
ZA739481B (en) * 1973-12-14 1975-04-30 Triple Bee Prestress Pty Ltd Improvements in or relating to cable anchoring equipment
US3877113A (en) * 1974-02-06 1975-04-15 Cesar D Reyes Anchoring system used in post stressing concrete
US4203267A (en) * 1978-07-31 1980-05-20 Bethlehem Steel Corporation Multiple strand tower guy assembly
US4304078A (en) * 1979-04-20 1981-12-08 Meriwether Jr Irvin F Adjustable support apparatus
US4349300A (en) * 1979-06-04 1982-09-14 Kelley Jay H Systemic roof support
US4330970A (en) * 1979-10-23 1982-05-25 Copreal S.A. Building structure and steel parts for same
DE8002045U1 (de) * 1980-01-26 1980-04-30 Dyckerhoff & Widmann Ag, 8000 Muenchen Wiedergewinnbares schalungsteil fuer den verankerungsbereich eines spannglieds in einem betonbauteil
US4460420A (en) * 1980-08-18 1984-07-17 Sylver National Industries, Inc. Method and articles for repairing gypsum wallboard
US4337923A (en) * 1980-09-23 1982-07-06 Smith Jackson A Fibre optical cable pulling eye
DE3214646A1 (de) * 1981-04-24 1982-11-18 René 31500 Toulouse Soum Verankerung fuer stahlbetonbewehrungen
US4395161A (en) * 1981-11-19 1983-07-26 Bethlehem Steel Corporation Transition plate for a mine roof truss
IT8422084V0 (it) * 1984-06-05 1984-06-05 Ponteggi Est Spa Testata di ancoraggio di accoppiamento per realizzazione di manufatti in calcestruzzo precompressi a cavi scorrevoli.
CH665444A5 (de) * 1985-01-17 1988-05-13 Losinger Ag Zwischenankeranordnung zum vorspannen von bauteilen, die in mehreren bauetappen erstellt werden, und ein verfahren zum herstellen einer solchen zwischenankeranordnung.
US4630974A (en) * 1985-03-13 1986-12-23 Price & Adams Roof support system for a mine and method for providing the same
US4616458A (en) * 1985-07-01 1986-10-14 Vsl Corporation Protective apparatus for tendons in tendon tensioning anchor assemblies
FR2586076B1 (fr) * 1985-08-12 1987-12-04 Freyssinet Int Stup Perfectionnements aux mors tronconiques d'ancrage pour cables et a leurs procedes de fabrication
US4700828A (en) * 1986-07-18 1987-10-20 Dana Corporation Multi-clevis cable connector
US4678360A (en) * 1986-07-29 1987-07-07 Miller James R Quick connect/disconnect element for lines
US4821474A (en) * 1987-08-24 1989-04-18 Alan Rodriguez Post-tensioning anchor
US5024032A (en) * 1987-08-24 1991-06-18 Alan Rodriguez Post-tensioning anchor
US5079879A (en) * 1987-08-24 1992-01-14 Alan Rodriguez Anti-corrosive post-tensioning anchorage system
US4812096A (en) * 1987-12-11 1989-03-14 Peterson Peter O Self-tightening nut
US4960348A (en) * 1988-12-08 1990-10-02 Seegmiller Ben L Truss systems, components and methods for trussing arched mine roofs
US5058469A (en) * 1989-08-21 1991-10-22 Alan Rodriguez Cable shear and clamp system
US5168681A (en) * 1990-08-20 1992-12-08 Horsel Plc Prestressed wood floor system
US5231752A (en) * 1992-03-03 1993-08-03 Hereford J A Wire rope termination
JP2579577B2 (ja) * 1992-05-21 1997-02-05 オリエンタル建設株式会社 中空ｐｃ鋼棒を使用したコンクリート部材のプレストレス導入方法
US5271199A (en) * 1992-08-24 1993-12-21 Incast Anchorage Systems, Inc. Post tensioning anchor system
US5440842A (en) * 1992-12-09 1995-08-15 Felix L. Sorkin Sealed tendon-tensioning anchor system
JP2511792B2 (ja) * 1993-05-14 1996-07-03 ショーボンド建設株式会社 プレストレス定着装置の取り付け方法
US5466095A (en) * 1993-06-10 1995-11-14 Scott Investment Partners Underground support system and method of support
US5594977A (en) * 1993-12-30 1997-01-21 Mccallion; James P. Smooth rod-gripping apparatus
US5671572A (en) * 1994-02-11 1997-09-30 Siller-Franco; Jose Luis Method for externally reinforcing girders
US5802788A (en) * 1994-02-22 1998-09-08 Kabushiki Kaisha Komatsu Seisakusho Komatsu Plastics Industry Co., Ltd. Fixing device for tensioning member for prestressed concrete
US5535561A (en) * 1994-08-30 1996-07-16 Schuyler; Peter W. Cable hold down and bracing system
US5544982A (en) * 1994-11-25 1996-08-13 Seegmiller; Ben L. Mine strata support structure
US5718090A (en) * 1996-06-24 1998-02-17 Wei-Hwang; Lin Prestressed concrete tensioning system
US5755535A (en) * 1996-08-19 1998-05-26 Triad Support Systems, Inc. Mine roof truss system and related installation method
US5939003A (en) * 1997-01-31 1999-08-17 Vsl International Post-tensioning apparatus and method
US5839235A (en) * 1997-08-20 1998-11-24 Sorkin; Felix L. Corrosion protection tube for a post-tension anchor system
AU9508298A (en) * 1997-09-24 1999-04-12 Schuyler, Peter W. Hold down device and method
US8397454B2 (en) * 1997-11-21 2013-03-19 Simpson Strong-Tie Company, Inc. Building wall for resisting lateral forces
US6318038B1 (en) * 1997-12-31 2001-11-20 Jae Man Park Apparatus for retensing pre-stress structure
US6234709B1 (en) * 1998-01-15 2001-05-22 Felix L. Sorkin Wedge-receiving cavity with radiused edge for an anchor body of a post-tension anchor system
US5897102A (en) * 1998-01-15 1999-04-27 Sorkin; Felix L. Pocketformer apparatus for a post-tension anchor system
KR100265697B1 (ko) * 1998-05-07 2000-09-15 한만엽 외부프리스트레스 보강공법을 위한 개량된 지압지지방식의 정착방법 및 장치
US6230448B1 (en) * 1998-11-05 2001-05-15 James Oliver Push/pull outrigger for manufactured home
US6145268A (en) * 1998-12-18 2000-11-14 Korzen; Thomas G. Apparatus and method for providing a reinforced roof truss
CA2369021A1 (en) * 1999-04-14 2000-10-19 Alan F. Rodriguez Post-tension anchor seal cap
FR2794484B1 (fr) * 1999-06-03 2001-08-03 Freyssinet Int Stup Dispositif d'ancrage d'un cable de structure
US6393781B1 (en) * 2000-03-13 2002-05-28 Felix L. Sorkin Pocketformer apparatus for a post-tension anchor system and method of using same
US6625945B2 (en) * 2000-08-08 2003-09-30 Alfred D. Commins Balanced, multi-stud hold-down
US6817148B1 (en) * 2000-08-28 2004-11-16 Felix L. Sorkin Corrosion protection seal for an anchor of a post-tension system
US6601354B2 (en) * 2001-07-12 2003-08-05 Bill Hughes Method and apparatus for post-tensioning steel strands in slab construction
US7174685B2 (en) * 2003-02-03 2007-02-13 Hayes Specialty Machining, Ltd. Pocket former for post-tension anchor
US7717650B2 (en) * 2003-12-02 2010-05-18 Dywidag-Systems International, U.S.A., Inc. Roof truss shoe having wedge retention device and method of using the same
US7118310B2 (en) * 2003-12-02 2006-10-10 Dywidag-Systems International, U.S.A., Inc. Truss shoe for a mine roof and method
US7261494B2 (en) * 2004-02-27 2007-08-28 Jennmar Corporation Truss shoe

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
None *

Also Published As

Publication number Publication date
ES2782349T3 (es) 2020-09-14
JP4563747B2 (ja) 2010-10-13
US20050028477A1 (en) 2005-02-10
EP1503007A1 (de) 2005-02-02
FR2858345B1 (fr) 2007-04-20
JP2005048586A (ja) 2005-02-24
FR2858345A1 (fr) 2005-02-04
US8333047B2 (en) 2012-12-18
US20120011788A1 (en) 2012-01-19
US8104246B2 (en) 2012-01-31

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