EP2466036A1 - Verfahren zur Verstärkung eines Bauwerks mit Hilfe von Verstärkungsbändern - Google Patents

Verfahren zur Verstärkung eines Bauwerks mit Hilfe von Verstärkungsbändern Download PDF

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Publication number
EP2466036A1
EP2466036A1 EP11193508A EP11193508A EP2466036A1 EP 2466036 A1 EP2466036 A1 EP 2466036A1 EP 11193508 A EP11193508 A EP 11193508A EP 11193508 A EP11193508 A EP 11193508A EP 2466036 A1 EP2466036 A1 EP 2466036A1
Authority
EP
European Patent Office
Prior art keywords
reinforcing
strips
reinforcement
strip
zone
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.)
Granted
Application number
EP11193508A
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English (en)
French (fr)
Other versions
EP2466036B1 (de
Inventor
Jérôme Stubler
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
Original Assignee
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 EP2466036A1 publication Critical patent/EP2466036A1/de
Application granted granted Critical
Publication of EP2466036B1 publication Critical patent/EP2466036B1/de
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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
    • 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
    • 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
    • E04G23/0225—Increasing or restoring the load-bearing capacity of building construction elements of circular building elements, e.g. by circular bracing
    • 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
    • E04G2023/0251—Increasing or restoring the load-bearing capacity of building construction elements by using fiber reinforced plastic elements
    • 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
    • E04G2023/0251—Increasing or restoring the load-bearing capacity of building construction elements by using fiber reinforced plastic elements
    • E04G2023/0255—Increasing or restoring the load-bearing capacity of building construction elements by using fiber reinforced plastic elements whereby the fiber reinforced plastic elements are stressed
    • 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
    • E04G2023/0251—Increasing or restoring the load-bearing capacity of building construction elements by using fiber reinforced plastic elements
    • E04G2023/0255—Increasing or restoring the load-bearing capacity of building construction elements by using fiber reinforced plastic elements whereby the fiber reinforced plastic elements are stressed
    • E04G2023/0259—Devices specifically adapted to stress the fiber reinforced plastic elements
    • 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
    • Y10T29/00—Metal working
    • Y10T29/49—Method of mechanical manufacture
    • Y10T29/49616—Structural member making
    • Y10T29/49618—Restoring existing member, e.g., reinforcing, repairing
    • 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
    • Y10T29/00—Metal working
    • Y10T29/49—Method of mechanical manufacture
    • Y10T29/49826—Assembling or joining
    • 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
    • Y10T29/00—Metal working
    • Y10T29/49—Method of mechanical manufacture
    • Y10T29/49826—Assembling or joining
    • Y10T29/49863—Assembling or joining with prestressing of part
    • Y10T29/49874—Prestressing rod, filament or strand

Definitions

  • the present invention relates to a method of reinforcing a building structure using reinforcing strips and a construction work obtained by this reinforcement method.
  • Carbon fiber fabric is sometimes used as reinforcement to reinforce reinforced concrete structures. It is directly applied and glued against the structure. In order for the composite to contribute to the strength of the structure, it is necessary that the support on which the fabric is bonded is put in tension, which implies a certain level of cracking in the support. This is a problem when a perfect seal is necessary, for example in an aggressive environment.
  • the present invention aims to remedy all or some of the disadvantages mentioned above, that is to say in particular to provide a compact process for strengthening a construction work, the method contributing to the resistance of the structure even when it is not in traction and does not create local mechanical strength of the structure.
  • the construction work can be of any kind. In particular, it may be a concrete structure. It can also be prestressed, or not, by conventional means.
  • Body means an element capable of extending in a longitudinal direction over a length significantly greater than its width in a first direction perpendicular to the longitudinal direction, the element also having a thickness significantly smaller than its width.
  • the width and thickness of the strip may vary depending on the location in the longitudinal direction.
  • the strip can be curved, for example to fit the shape of the construction work.
  • the reinforcing strips may be more or less elastic.
  • the tensioning is done by traction, for example on a free end of the reinforcing strip.
  • the traction causes an elongation of the reinforcing strip and a reaction force on its part. It is important that the portion of the reinforcing strip that elongates is free to slide on the structure during tensioning. Indeed, it has been noticed that, if the band is adherent at that time, it does not do not lie so much. In addition, in this case, shear forces are transmitted to the structure during the tensioning and after. These efforts are frequently the cause of delamination phenomena (tearing material) of the structure along the tension portion of the reinforcing strip.
  • the non-adhesion thus improves both the behavior of the reinforcing strip and reduces the risk of damage to the construction work, especially by delamination.
  • the reinforcing strip may be impregnated or coated with resin.
  • Non-adherence of the reinforcing strip during tensioning can be achieved by various means.
  • the band is not, or not yet, coated with resin, or this resin has not yet taken.
  • the reinforcing strip having been tensioned, the reinforcement strip is mechanically secured to the structure.
  • mechanically fasten is meant to immobilize at least a portion of the reinforcing strip by a direct mechanical connection (anchoring) or indirectly (via other elements) to the structure and / or the reinforcing strip itself .
  • This connection takes the reaction force of the reinforcing strip due to the tensioning.
  • the mechanical connection can transmit the reaction force to an area of the structure provided for this purpose, for example an anchor for diffusing shear forces in or on the structure of the structure.
  • the band can also be placed in such a way that the transmission of the reaction force to the structure results in a compression force applied to the structure.
  • the band may also exert pressure on the structure, for example if it wholly or partially surrounds part or all of the structure.
  • the reinforcing strip is secured to the structure by the zone on which the firing is made, but it is also possible to join the strip by another zone of the reinforcing strip.
  • Any anchoring of the reinforcing strip or its mechanical attachment can be done by gluing.
  • reinforcing strip which reinforces the construction work without transmitting shear forces along the portion of the tensioned strip.
  • the reinforcing strips are included in a substantially rectangular reinforcing zone and elongated in a given direction.
  • the reinforcement zone has a first extreme zone and a second extreme zone located opposite each other in the given direction.
  • a first set of reinforcing strips are anchored by their first zones on the first extreme zone of the construction structure and a second set of reinforcement strips are anchored by their first zones on the second extreme zone. of the construction work.
  • a third set of reinforcing strips comprising at least one reinforcing strip of the first set and at least one reinforcing strip of the second set is tensioned.
  • the third assembly is tensioned by means of a spacer exerting traction forces simultaneously on the second zones of the reinforcement strips of the third assembly.
  • the pulling forces exerted by the spacer move the second zone or zones of the reinforcing strips from the first set of the second zone or zones of the reinforcement strips of the second set.
  • a first zone of the strip is fixed to the structure by an anchorage which makes it possible to distribute the forces that the reinforcement strip will apply to the structure.
  • This attachment defines at least one free portion of the reinforcing strip. In fact, if this first zone is located at one end of the reinforcing strip, all the rest of the reinforcing strip becomes a free part. If the first zone is at a distance, two free parts are created, which are the two portions of the reinforcing strip on both sides of the anchor.
  • the free portion of the reinforcement strip is tensioned.
  • the reinforcement strips are relatively elastic.
  • the tensioning is done by pulling on a second zone of the reinforcing strip, for example a free end of the free portion.
  • the second zone may also not be an end of the reinforcing strip.
  • the traction causes an elongation of the reinforcing strip and a reaction force on its part. It is important that the portion of the reinforcing strip that elongates is free to slide on the structure during tensioning. Indeed, it has been noticed that, if the band is adherent to this at that moment, she does not lie so much. In addition, in this case, shear forces are transmitted to the structure during the tensioning and after. These efforts are frequently the cause of delamination phenomena (tearing material) of the structure along the tension portion of the reinforcing strip.
  • step c) the reinforcing strip having been tensioned, mechanically secures the free portion of the reinforcing strip with the structure.
  • To mechanically fasten is to immobilize the reinforcing strip by a direct mechanical connection (anchoring) or indirectly (via other elements) to the structure.
  • This connection takes the reaction force of the reinforcing strip due to the tensioning.
  • the link transmits the reaction force to an area of the structure provided for this purpose, for example an anchor for diffusing shear forces in or on the structure of the structure.
  • the band can also be placed in such a way that the transmission of the reaction force to the structure does not translate into a compression force applied to the structure.
  • the reinforcing strip is secured to the structure by the second zone (on which it has been pulled), but it is also possible to secure the strip by another zone of the free portion which is not the first zone.
  • reinforcement strips are available, which reinforce the construction work without transmitting shear forces along its length.
  • the forces applied by the reinforcing strips to the structure are on the one hand, at the anchorages of the first zones and, on the other hand, on the zone of the structure to which the mechanical fastening of the strip transmits the reaction force following the tensioning.
  • the resin reinforcing strip is coated before it is put into tension and the tensioning is carried out before the resin dries.
  • the tensioning is carried out before the resin dries.
  • a thin and sliding element can be inserted before the tensioning under the free part of the band. This element makes it possible to create a zone of adhesion failure whose length can be adjusted. This length can go up to that of the free part of the reinforcing strip.
  • each of the bands undergoes the steps a) to c) above.
  • Each is anchored to the structure by a first zone (step a).
  • Each is tensioned in its free portion by pulling on a second zone (step b).
  • each is solidarized with the work (step c).
  • mechanically joining the free part it is meant that a point or zone is anchored directly or indirectly to the structure.
  • the fastening is made at the level of the second zone.
  • the tensioning can be done by means capable of contracting, comprising for example a jack, which bring the second zones of the two bands together. By the effect of the elasticity, and the fact that they can slide, the free parts of the two bands line up to become coaxial.
  • the tensioning means are also used for the mechanical fastening of each band to the work. Each band is therefore secured via the tensioning means in the contracted position and via the other reinforcing strip.
  • the reaction force of one band is transmitted to the structure via the anchoring of the first zone of the other reinforcing strip.
  • the setting in tension and the mechanical fastening are thus carried out in a simple and practical way.
  • the reaction forces of the two reinforcing strips cancel one another. No shearing force is transmitted to the structure along the tensioned strips.
  • the method uses reinforcement strips reinforcing the structure on a reinforcing zone (or area to be reinforced) substantially rectangular and elongated.
  • a reinforcing zone or area to be reinforced
  • Each of the bands undergoes the steps a) to c) above.
  • Each is anchored to the structure by a first zone (step a).
  • Each is tensioned by pulling on a second zone (step b).
  • step c each is solidarized with the work.
  • Some bands defining a first set are anchored to a first end zone of the reinforcement zone.
  • the other bands defining a second set are anchored on a second end zone of the reinforcing zone, located opposite the first.
  • the third set comprises at least one band of the first set, preferably one, and at least two bands of the second set, preferably exactly two.
  • the third set comprises bands anchored on either side of the reinforcement zone.
  • the bands of the third set are tensioned using a spacer.
  • the latter makes it possible to enter the bands by their second zones and to move the second zones away from the bands of the first set of bands from the bands of the second set.
  • the bands of the third set are then mechanically fastened to the structure as described above for an individual band.
  • the fourth set comprises at least two bands of the first set, preferably exactly two, and at least one band of the second set, preferably only one.
  • the fourth set also includes anchored strips before or after the tensioning of the third set of bands on either side of the reinforcement zone.
  • the retractor makes it possible to enter the bands by their second zones and to move the second zones of the bands of the first set away from those of the bands of the second set.
  • each reinforcing strip of the fourth assembly is mechanically secured to the free portion of a reinforcing strip of the third assembly and vice versa.
  • reaction efforts of each band of the third set are taken up by a band of the fourth set and transmitted to the book via this band.
  • the reaction forces of two reinforcement bands thus bonded cancel one another. No shearing force is transmitted to the structure along these tensioned strips.
  • This joining of a free part of one band to another is preferably done at the level of the second zones of each band, which are preferably located at the free end of the bands.
  • the strips may comprise a composite material.
  • This material can be a fiber weave. It can also be a bundle of fibers. It can also be in the form of lamellae. In addition to the fibers and / or lamellae, the reinforcing strips comprise resin.
  • the fibers may comprise carbon (carbon fiber). They may include glass. They may also include aramid.
  • Carbon fiber fabric is commonly referred to as "TFC”.
  • the invention further relates to a construction structure comprising alleged reinforcement strips.
  • the so-called reinforcement strips are obtained by implementing the method as described above.
  • a reinforcing strip for example TFC (carbon fiber fabric). It is anchored in or on a building structure 1. The anchoring is done at a first zone 1a of the strip 2, for example by gluing on the structure 1. This anchorage defines a free portion 2b, c ' that is, the portion of the strip 2 that is not anchored to the structure.
  • TFC carbon fiber fabric
  • the tensioning of the strip 2 is represented by means 5.
  • a traction force R2 ' is applied to a second zone 2c of the strip 2.
  • the means 5 act by contraction obtained at using a jack system 5a, 5d included in the means 5.
  • the traction R2 'on the band 2 causes an elongation d2 and a reaction force R2 of the band 2 on the tensioning means 5.
  • the strip 2 is then mechanically secured to the structure 1. On the Figures 1A and 1B this is done via another reinforcing strip 3.
  • the reaction force R2 is transmitted to the structure in an area that can withstand this effort.
  • this zone is an anchoring zone 3a of the strip 3.
  • the stress R2 can be transmitted by a wick of fibers 2d originating from the weaving of the band 2 or glued to it.
  • the junction between the wick 2d and the band 2 is by one or more lamination whip.
  • the wick 2d is connected via an eye head 5c to a threaded rod 5d engaged in a turnbuckle 5a.
  • the Figure 2B shows an enlargement of the eye head 5c which has on one side an eye and the other a thread for the engagement of the threaded rod 5d.
  • the Figure 2C shows how the wick 2d can be engaged in the eye head 5c.
  • the wick 2d is here a loop having two whiplass stretches at the junction with the second zone 2c of the band 2.
  • the band 2 can be coated on its part 2b of slow setting resin.
  • the band 2 is tensioned before the resin dries, so that the reinforcing strip 2 is more free to slide on the structure 1 during its elongation d2.
  • a thin sliding element (not shown) under the free portion 2b of the reinforcing strip 2 prior to tensioning.
  • a suitable membrane such as polyane or non-stick paint.
  • the Figures 1A and 1B also illustrate the case of a tensioning of a TFC reinforcement strip 3 made at the same time as that of the strip 2.
  • the strip 3 is anchored by a second zone 3a.
  • the tensioning means 5 bring the second zones 2c and 3c close to one another, causing the two strips 2 and 3 to elongate and put into simultaneous tension.
  • the means 5 contract with the jack constituted by the elements 5a, 5d and a 5d analogue located on the other side of the turnbuckle 5a, on the side of the band 3.
  • the band 3 extends from d3 and applies on the means 5 a reaction force R3.
  • the R2 and R3 efforts are vector-balanced (zero resultant).
  • the resulting moment is also nil.
  • the tensioning means 5 are therefore in equilibrium and it is not necessary to prevent them from rotating.
  • the means 5 then remain in a contracted position, ensuring the mechanical joining of the band 3 to the work 1 through the other band 2, and vice versa.
  • FIGS. 3A to 4C represent embodiments using reinforcement strips according to a method according to the invention.
  • FIGS. 3A to 3C three bands 2, 3, 4 are intended to reinforce an elongated zone 10 of the structure 1.
  • a first set of bands, in fact the band 2 is anchored by the first zone 2a to an extreme zone 10a of the zone 10.
  • a second set of bands, in fact the bands 3 and 4 is anchored by the first zones 3a and 4a to a second extreme zone 10b situated opposite the zone 10a in the zone to be reinforced 10.
  • the free ends of the strips 2 to 4, which are here their second zones, are located in a median zone 10c of the zone 10 to be reinforced.
  • the second zones 2c, 3c, 4c are engaged in a spacer 5, 5a.
  • Part 5 is for example equipped with jaws capable of being fixed on the seconds zones 2c, 3c, 4c of the bands. Alternatively, one could consider using a spacer that wraps the bands.
  • the bands form a third set of bands which thus includes the first set (passively anchored on one side of the area to be reinforced) and a second set (passively anchored on the other side of the area to be reinforced).
  • This third set is put in tension by deforming the spacer for example using a jack 5a.
  • the spacer 5 moves the second zones 2c away from the bands of the first set of second zones 3c and 4c of the bands of the second set.
  • each of the three bands is secured to the structure 1, keeping the spacer 5 in a remote position. It is also possible to join the strips directly with the structure if its structure lends itself to it. It is also possible to replace the spacer with a locking piece intended to remain in place.
  • the strips 2 and 4 are twice as wide as the strip 2 and the strips are all the same length.
  • the effort R2 is twice as large as the efforts R3 and R4 and in the opposite direction. If the distances between two consecutive bands are identical, the efforts are balanced in moment (resulting moment null). This facilitates the implementation of the spacer.
  • the method can be completed by the implementation of a fourth set of reinforcement strips in TFC 6, 7 and 8.
  • Figure 4A the strips 7 and 8 belong to the first set (they are anchored by their first zones 7a and 8a in the first end zone 10a, before or after the tensioning of the band 2 of the third set) and the band 6 belongs to the second set together (band anchored by its first zone 6a in the second extreme zone 10b, before or after the tensioning of the bands 3 and 4 of the third set).
  • the strips 6, 7 and 8 of the fourth set are tensioned in a manner similar to that of the strips 2, 3 and 4 of the third set (see Figure 4B ) using a retractor 9.
  • the strips 6, 7, 8 of the fourth set have the same length and the same width as the homologous strips of the third set to which they are secured, so as to form a drawing complementary to that formed by the third together.
  • the strips can then be arranged so that they ultimately occupy three contiguous rails (2, 6), (3, 7) and (4, 8) so as to completely cover the area to be reinforced 10.
  • the figure 5 represents a reinforcing strip mechanically secured with itself.
  • the reinforcing strip 2 almost completely surrounds the construction structure 1. It completely surrounds it if the tensioning means 5, 5a are included.
  • the tensioning is done by pulling on the second zone 2c. One retains (for example by an anchoring) or one pulls also on the zone 2c '.
  • the reinforcing strip is mechanically secured to itself via the tensioning means.
  • the tension of the band is transmitted to the structure by the pressure that the band 2 exerts on the structure 1.
  • the band 2 is anchored to the structure, for example by a point along its length, by gluing.
EP11193508.6A 2010-12-15 2011-12-14 Verfahren zur Verstärkung eines Bauwerks mit Hilfe von Verstärkungsbändern Active EP2466036B1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR1060548A FR2969196B1 (fr) 2010-12-15 2010-12-15 Procede de renforcement d'un ouvrage de construction mettant en oeuvre au moins une bande de renfort.

Publications (2)

Publication Number Publication Date
EP2466036A1 true EP2466036A1 (de) 2012-06-20
EP2466036B1 EP2466036B1 (de) 2016-04-06

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EP11193508.6A Active EP2466036B1 (de) 2010-12-15 2011-12-14 Verfahren zur Verstärkung eines Bauwerks mit Hilfe von Verstärkungsbändern

Country Status (5)

Country Link
US (1) US8595912B2 (de)
EP (1) EP2466036B1 (de)
ES (1) ES2576842T3 (de)
FR (1) FR2969196B1 (de)
PL (1) PL2466036T3 (de)

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US11309312B2 (en) * 2019-12-04 2022-04-19 Nanya Technology Corporation Semiconductor device

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JP2001262842A (ja) * 2000-03-15 2001-09-26 Yokohama Rubber Co Ltd:The コンクリート構造物の耐震補強構造
JP2002206348A (ja) * 2001-01-10 2002-07-26 Yokohama Rubber Co Ltd:The コンクリ−ト柱の緊締用具及びそれを利用した緊締方法
US20050247016A1 (en) * 2002-08-20 2005-11-10 Leonhardt, Andra Und Partner Beratende Ingenieure Vbi Gmbh Method of installing tension members on supporting structures, and apparatus for performing the method
US20050252116A1 (en) * 2002-10-23 2005-11-17 Markus Maier Tensioning device for strip-shaped tension members

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JPH01284674A (ja) * 1988-05-11 1989-11-15 Sumitomo Electric Ind Ltd アンボンドｐｃ鋼より線の定着構造
JPH0635758B2 (ja) * 1988-07-21 1994-05-11 神鋼鋼線工業株式会社 緊張材定着方法及び装置
US4934873A (en) * 1988-08-08 1990-06-19 Jennmar Corporation Mine roof support utilizing roof anchors having eye-bolt heads
DE3925368A1 (de) * 1989-08-01 1991-02-14 Holzmann Philipp Ag Verfahren und einrichtung zum einfaedeln von spannstaehlen fuer buendelspannglieder in einsinnig gekruemmte spannkanaele
US6219991B1 (en) * 1990-08-06 2001-04-24 Hexcel Corporation Method of externally strengthening concrete columns with flexible strap of reinforcing material
DE19849605A1 (de) * 1998-10-28 2000-05-04 Goehler Andrae Und Partner Ber Spannvorrichtung für ein bandförmiges Zugglied
FR2790500B1 (fr) 1999-03-01 2002-06-07 Freyssinet Int Stup Procede et dispositif de renforcement d'un ouvrage en beton
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Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2001262842A (ja) * 2000-03-15 2001-09-26 Yokohama Rubber Co Ltd:The コンクリート構造物の耐震補強構造
JP2002206348A (ja) * 2001-01-10 2002-07-26 Yokohama Rubber Co Ltd:The コンクリ−ト柱の緊締用具及びそれを利用した緊締方法
US20050247016A1 (en) * 2002-08-20 2005-11-10 Leonhardt, Andra Und Partner Beratende Ingenieure Vbi Gmbh Method of installing tension members on supporting structures, and apparatus for performing the method
US20050252116A1 (en) * 2002-10-23 2005-11-17 Markus Maier Tensioning device for strip-shaped tension members

Also Published As

Publication number Publication date
PL2466036T3 (pl) 2016-10-31
US8595912B2 (en) 2013-12-03
FR2969196B1 (fr) 2014-02-07
US20120151740A1 (en) 2012-06-21
ES2576842T3 (es) 2016-07-11
EP2466036B1 (de) 2016-04-06
FR2969196A1 (fr) 2012-06-22

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