EP2868829B1 - Verstärkungsverfahren eines Bauelements aus Holz durch den Zusammenbau eines nachgespannten Verstärkungsmoduls - Google Patents

Verstärkungsverfahren eines Bauelements aus Holz durch den Zusammenbau eines nachgespannten Verstärkungsmoduls Download PDF

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Publication number
EP2868829B1
EP2868829B1 EP14190572.9A EP14190572A EP2868829B1 EP 2868829 B1 EP2868829 B1 EP 2868829B1 EP 14190572 A EP14190572 A EP 14190572A EP 2868829 B1 EP2868829 B1 EP 2868829B1
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EP
European Patent Office
Prior art keywords
reinforcing
module
strand
reinforcement
housing
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Application number
EP14190572.9A
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English (en)
French (fr)
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EP2868829A1 (de
Inventor
Marc-Henry Menard
Carl REDON
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M LEFEVRE
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M LEFEVRE
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Publication of EP2868829A1 publication Critical patent/EP2868829A1/de
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    • 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
    • E04G21/121—Construction of stressing jacks
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
    • E04C3/00—Structural elongated elements designed for load-supporting
    • E04C3/02—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces
    • E04C3/12—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces of wood, e.g. with reinforcements, with tensioning members
    • E04C3/122—Laminated
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
    • E04C3/00—Structural elongated elements designed for load-supporting
    • E04C3/02—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces
    • E04C3/12—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces of wood, e.g. with reinforcements, with tensioning members
    • E04C3/18—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces of wood, e.g. with reinforcements, with tensioning members with metal or other reinforcements or tensioning members
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
    • E04C3/00—Structural elongated elements designed for load-supporting
    • E04C3/02—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces
    • E04C3/12—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces of wood, e.g. with reinforcements, with tensioning members
    • E04C3/18—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces of wood, e.g. with reinforcements, with tensioning members with metal or other reinforcements or tensioning members
    • E04C3/185—Synthetic reinforcements
    • 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
    • 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
    • E04C5/085—Tensile members made of fiber reinforced plastics
    • 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
    • E04G2023/0248—Increasing or restoring the load-bearing capacity of building construction elements of elements made of wood
    • 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

Definitions

  • the present invention relates to the field of reinforcement of wooden construction structures (solid or glued laminated).
  • Said wooden construction structures preferably extend between at least two support points and preferentially work in flexion, traction, compression, buckling or spill.
  • Permanent or occasional overloads due to the exploitation can also be applied to the structure of wooden construction, which requires to increase its carrying capacity by increasing its inertia.
  • the evolution of structural design standards may also require compliance of the building structure imposing to increase its inertia.
  • reinforcement modules it is also possible to use reinforcement modules to be added on one of the faces of the beam to be reinforced.
  • the building elements of solid wood or laminated wood are reinforced by the integration of reinforcing modules or prostheses of wood or glue-laminated for example on the lower surface, called the intrados, of the building element. strengthen.
  • Such a prosthesis may be of constant or variable height and its length is often limited to the central zone of the beam where the bending moments are high.
  • the prosthesis thus contributes to increasing the inertia of the reinforced beam and can be added to it either directly, in which case the prosthesis is active only after overloading the beam, or after a so-called jacking stage consisting in creating a counter-arrow, given to the beam at the time of its strengthening with the help of jacks, so that the prosthesis is immediately in tension during the deverinage of the whole.
  • EP0034224A2 discloses a method of reinforcing wood beams comprising at least the following successive stages: contacting the two beams to be joined together with intercalation of a layer of fibers; drilling a plurality of anchor holes through the two beams and the fiber layer; introduction of reinforcing rods into the holes thus obtained; sealing the joints between the two beams; and introducing by casting or injection of an epoxy resin or a mixture of epoxy resins into said anchor holes until they are completely filled and until the total impregnation of the fiber layer.
  • the object of the invention is therefore to overcome these disadvantages and simplify the implementation of the reinforcement by facilitating its installation on a solid wood building element or laminated wood that may have deformed compared to its original shape , for example a beam flexed.
  • the object of the invention is therefore to provide a counter-arrow to the reinforcement module without using a tower ladder shoring, thus reinforcing beams even in the most difficult to access spaces.
  • Another object of the invention is to bring end-to-end reinforcement modules to be assembled directly on the site, for example under the beam to be reinforced, in order to ensure the mechanical continuity of the traction forces that the assembled reinforcement must take up.
  • the invention relates to a method of reinforcing a structural element made of solid wood or glulam, in which at least one of the faces of said construction element is fixed via at least one connector, at least one reinforcement module made of solid wood or laminated wood.
  • At least one housing provided in the reinforcement module is inserted into at least one strand, said strand is post-tensioned by a post-tensioning system, and said strand is fixed by an anchoring device.
  • the anchoring device comprises a support plate attached to each end of the reinforcement module and a clamping device comprising a conical jaw capable of clamping each end of the corresponding strand.
  • At least one of the faces of the construction element is fastened with at least two adjacent reinforcement modules made of solid wood or laminated wood bonded by the post-tensioned strand.
  • a first support plate is fixed at a first end of the first reinforcement module, the second end of the first reinforcement module is joined to a first end of the second adjacent reinforcement module and a second support plate is fixed to a second a second end of the second reinforcement module.
  • wooden fire protection means may be positioned around the support plates.
  • the anchoring device is a binder capable of sealing at least part of the strand inside the housing provided in the reinforcement module (s).
  • the connectors may be screws, studs sealed by a binder (not shown) such as for example a resin or glue simultaneously in the beam and the reinforcement module, or reinforcements constituted by rods or rigid bars, for example fiberglass, carbon, steel or other ....
  • a binder such as for example a resin or glue simultaneously in the beam and the reinforcement module, or reinforcements constituted by rods or rigid bars, for example fiberglass, carbon, steel or other ....
  • the binder may be a resin, for example of the epoxy type, or an adhesive, for example of the cyanoacrylate, polyurethane, formaldehyde type or any other suitable adhesive or resin.
  • the strand may be made of metal material, synthetic material, composite material or mineral.
  • the housing for the strand is machined in the reinforcement module (s).
  • the housing for the strand is made by leaving gaps between the lamellae (s) module (s) reinforcement laminated wood during its manufacture.
  • a sheath is inserted into the gaps forming a housing before the application of a pressure force necessary for the manufacture of the laminated wood reinforcement module.
  • the sheath may have internal and external surfaces which may be smooth or annealed depending on the degree of adhesion required between the wood and the sheath and between the strand and the sheath.
  • the housing may be substantially inclined relative to the longitudinal axis of (the) reinforcing modules to give the strand a substantially parabolic shape.
  • the reinforcement module is fixed to the beam to be reinforced by gluing.
  • At least one hooping reinforcement is positioned in a hole made respectively in the reinforcement module (s) and the beam to be reinforced.
  • a beam 1 for example of solid wood or glued laminated, having a lower surface, said lower surface or convex plane 1a, and to be reinforced either because of a degradation of its mechanical properties, or because of an increase the load she has to bear.
  • a reinforcement module 2 made of solid wood or laminated wood is fixed on the lower face 1a of the beam 1 by means of a plurality of connectors 3.
  • the connectors 3 are screws, to the number of six, arranged inclined with respect to the longitudinal direction of the beam to be reinforced 1.
  • the connectors 3 could be arranged substantially perpendicular to the longitudinal direction of the beam to be reinforced 1. It will be noted that one could provide a number of connectors greater than or equal to one.
  • the connectors 3 may be studs sealed by a binder (not shown) such as, for example, a resin or a glue simultaneously in the beam and the reinforcement module, or else reinforcements constituted by rods or bars.
  • a binder such as, for example, a resin or a glue simultaneously in the beam and the reinforcement module, or else reinforcements constituted by rods or bars.
  • rigid for example fiberglass, carbon, steel or other ....
  • the connectors 3 are positioned in bores 1b made respectively in the first reinforcement module 2 and in the beam 1 to be reinforced.
  • the lower surface 1a of the beam 1 to be reinforced is bonded by a binder 4, such as for example glue, with the reinforcement module 2.
  • a binder 4 such as for example glue
  • the reinforcement module is assembled by gluing and screwing or by gluing and stitching.
  • the reinforcement module 2 comprises two housings 5a, 5b provided to each receive a strand 6a, 6b.
  • the reinforcement module 2 is made of laminated wood glued by the superposition of several layers of wooden boards (not shown), while leaving gaps to form a passage 5a, 5b for the corresponding strand 6a, 6b. Alternatively, it could be provided to drill in the reinforcement module 2. It could also be provided that the reinforcement module 2 is made of solid wood.
  • the strand is made of metal material for example with high elastic limit of type T15, carbon fiber, fiberglass, aramid fiber, mineral fiber or any other synthesized material based on polymer.
  • the strand may also be made of composite material such as carbon-epoxy, glass-epoxy, glass-vinylester, aramid-epoxy rods, etc.
  • a plurality of strands could be provided to form one or more cables.
  • Each of the strands 6a, 6b is post-tensioned by a post-tensioning system 10 illustrated in detail in FIG. figure 1a .
  • a first anchoring means 7 is attached to a first end of each of the strands 6a, 6b and a second anchoring means 7 is attached to a second end of each of the strands 6a, 6b.
  • the two anchoring means 7 are identical to each other and only the anchoring means 7 located at one end of the 6a is illustrated in detail on the figure 1a and will be described.
  • the second anchoring means 7 is connected to a post tensioning system 10 such as for example a hydraulic cylinder outside the reinforcement module 2 and whose displacement according to the arrows F causes the tension of the strands 6a, 6b between the two anchoring means 7.
  • Each of the anchoring means 7 comprises for example a support plate 8 disposed at each end of the strands 6a, 6b and is provided with a passage 8a for the corresponding strand 6a, 6b.
  • each of the anchoring means 7 further comprises a clamping device 9 comprising, for example, a cylindrical body 9a and a conical jaw 9b having an outer surface of conical shape cooperating with a bore 9c of corresponding shape formed in the cylindrical body 9a.
  • the cylindrical body 9a has on its outer surface of revolution a threaded portion 9d intended to cooperate with a screwing means 9e.
  • the corresponding strand 6a passes into a passage (not referenced) provided inside the cylindrical body 9a of the clamping device 9 and is clamped between the conical jaws 9b, respectively disposed at one end of the corresponding strand, by the screwing means 9e . Any other means could be provided for anchoring each end of the strands 6a, 6b.
  • a hydraulic jack system 10 comprises a tubular body 10a surrounding the clamping device 9 and bearing axially on only one of the support plates 8.
  • the tubular body 10a has an opening (not shown) so that to allow screwing of the clamping device 9. It will be noted that several screwing openings could be provided on the tubular body 10a.
  • the tubular body 10a is extended by a jack 11 fed by a hydraulic pump (not shown) intended to inject a fluid through the passage 11a in order to move the jack 11 according to the arrow F.
  • the hydraulic jack system 10 also comprises a clamping 12 is disposed at one end of the corresponding strand 6a.
  • the clamping device 12 comprises a conical key 12a intended to cooperate with a jaw 12b of corresponding shape. Note that one could provide any other means for clamping and tensioning the strand.
  • the hydraulic jack system 10 stretches the strand 6a, then the clamping device 9 anchors the strand 6a in the extended position to ensure the post tension of the strand.
  • the prestressing force of each of the strands 6a, 6b is transferred to the reinforcement module 2 by means of the support plates 8 of the anchoring device 7.
  • the prestressing is used here to maintain the reinforcement module 2 in a limited traction state, even compressed, and thus increase its tensile strength and bending.
  • reinforcements 13 such as for example screws or rods, are positioned at the ends of the reinforcement module 2 on either side of the housing 5a, 5b for the strands 6a, 6b.
  • the hooping frames 13 are three rows of three frames.
  • the reinforcements may be made of metallic material.
  • These reinforcements 13 are intended to ensure the hooping of the reinforcement module 2 and the beam to be reinforced 1.
  • these rods or shrinking screws 13 are inserted into holes (not referenced) made perpendicularly to the strands 6a, 6b in the module reinforcement 2 and in the beam to be reinforced 1.
  • These screws or hooping rods 13 make it possible to prevent the formation of cracks in the reinforcement module 2 at the interface between the reinforcement beam 1 and the reinforcement module 2, in horizontal axes and parallel to the strands 6a, 6b when the beam to be reinforced is subjected to a large bending force. Since the concentration of shear stress is maximal at the ends of the reinforcement module, it is necessary to position the hoop reinforcements close to the ends. Alternatively, one could not provide reinforcement frames between the reinforcement module and the beam to be reinforced.
  • the strands 6a, 6b After having post-tensioned the strands 6a, 6b via the hydraulic system 10 described with reference to FIG. figure 1a , the strands 6a, 6b are held in tension by the clamping devices 9 disposed at each end of the strands 6a, 6b.
  • a binder 15 is then injected into the housings 5a 5b for the strands 6a, 6b in order to bind the strands 6a, 6b to the reinforcement module 2.
  • the binder can be injected under pressure in the axis of the housings, or via lateral openings (not shown) opening into the housing 5a, 5b and allowing the flow of the binder by gravitation.
  • the binder may be a resin, for example of the epoxy type, or an adhesive, for example of the cyanoacrylate, polyurethane, formaldehyde type or any other suitable adhesive or resin.
  • the binder can be thixotropic or fluid.
  • the stresses applied to the strands 6a, 6b are transmitted to the reinforcement module 2 by separating the clamping means 9 and the external jack system 10.
  • the binder 15 plays here the role of anchoring means of the strands 6a, 6b. The force of the strands 6a, 6b is thus transmitted to the reinforcement module 2 via the binder 15.
  • the binder 15 can be placed only on part of the strand 6a, 6b to be sealed.
  • the connectors 3 are positioned in bores 1b made respectively in each of the reinforcement modules 2, 2n, 2 (n + 1) and in the beam 1 to strengthen.
  • the lower surface 1a of the beam 1 to be reinforced is bonded by a binder 4, such as for example glue, with each of the reinforcement modules 2, 2n, 2 (n + 1), to resume the efforts shearing between the beam to be reinforced 1 and the reinforcement modules 2, 2n, 2 (n + 1).
  • a binder 4 such as for example glue
  • the reinforcement modules 2, 2n, 2 (n + 1) are connected by two post-tensioned strands 6a, 6b respectively inserted in a corresponding housing 5a, 5b provided in each of the reinforcement modules 2, 2n, 2 ( n + 1).
  • Each of the strands 6a, 6b is post-tensioned by the post-tensioning system 10 and anchored by the anchoring means 7 illustrated in detail in FIG. figure 1a .
  • the post-tensioning of the strands 6a, 6b will not be further described.
  • a first support plate 8 is fixed at a first end of the first reinforcement module 2, the second end of the first reinforcement module is joined to 2 at a first end of the second adjacent reinforcement module 2n, the second end of the second reinforcement module 2n is joined to a first end of the third adjacent reinforcement module 2 (n + 1) and a second support plate 8 is fixed. at a second end of the third reinforcement module 2 (n + 1).
  • the support plates 8 are arranged at the ends of the strands 6a, 6b, independently of the number of reinforcement modules.
  • the strands 6a, 6b thus come to press the two reinforcement modules 2, 2n, 2 (n + 1) against each other.
  • the anchoring means are made by the binder alone or the combination of the binder and the anchoring device 7 illustrated in detail on the figure 1a .
  • the embodiment illustrated on the figure 5 differs from the embodiment illustrated in FIG. figure 1 by the shape of the housing 5a, 5b for the strands 6a, 6b.
  • the housing 5a, 5b for the corresponding strand 6a, 6b is produced by leaving gaps between the lamellae of the laminated-wood reinforcement module during its manufacture, so as to form a housing substantially inclined with respect to the longitudinal axis reinforcement module 2.
  • the strand inserted in this housing will have a substantially parabolic shape.
  • the reinforcement module of laminated wood is successively stacked a wooden blade and a layer of glue, then creates a pressure force.
  • the creation of gap is achieved by the superposition of wood blades of different lengths.
  • the pressure required to manufacture the laminated wood reinforcement module will overflow the glue and thus come to obstruct the gaps.
  • a sheath (not shown), preferably annealed, can be inserted into each of the housing 5a, 5b formed by the gaps before the application of the pressure force to prevent clogging of the gaps. Under the action of the pressure force, the glue, present during the manufacture of the reinforcement module, will come to be distributed around the sheaths. Thus, each of the strands 6a, 6b can be easily inserted into the corresponding sheath.
  • the reinforcing process is not limited to the use of one or two or three reinforcement modules. As a variant, it would be possible to use a number of reinforcement modules greater than three, in order, for example, to repair a large area or length of a damaged beam.
  • reinforcements 13 and the fire protection means 14 illustrated in FIG. figure 1 can be used in all the embodiments described above.
  • the invention is suitable for any structure whose surface must be repaired, both during reinforcement work and at the end thereof.
  • the invention it is possible to restore resistance to bending, tensile, compressive, buckling or spilling to the beam of wood or glued laminated which is damaged by, on the one hand, fastening via at least one connector, supplemented or not by an injection of resin or glue, reinforcement modules of wood or laminated on at least one surface of the damaged beam and secondly by a linear assembly of the modules of reinforcement between them.
  • the damaged wooden beam is thus restored directly on site thanks to the reinforcement method described.

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  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Wood Science & Technology (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • Rod-Shaped Construction Members (AREA)

Claims (15)

  1. Verfahren zur Verstärkung eines Bauelements aus Massivholz oder verleimtem Schichtholz (1), bei dem
    - auf mindestens einer der Seiten (la) des Bauelements (1) mit Hilfe mindestens eines Verbinders (3) mindestens ein Verstärkungsmodul (2, 2n, 2(n+1)) aus Massivholz oder verleimtem Schichtholz befestigt wird,
    dadurch gekennzeichnet, dass
    - in mindestens eine Aufnahme (5a, 5b), die in dem Verstärkungsmodul (2, 2n, 2(n+1)) vorgesehen ist, mindestens ein Strang (6a, 6b) eingesetzt wird,
    - der Strang (6a, 6b) durch ein Nachspannsystem (10) nachgespannt wird, und
    - der Strang (6a, 6b) durch eine Verankerungsvorrichtung (7, 15) befestigt wird.
  2. Verstärkungsverfahren nach Anspruch 1, bei dem die Verankerungsvorrichtung (7) eine Stützplatte (8), die an jedem Ende des Verstärkungsmoduls (2, 2n, 2(n+1)) befestigt ist, und eine Spannvorrichtung (9), umfassend eine konische Klemmbacke (9b), die geeignet ist, jedes Ende des entsprechenden Strangs (6a, 6b) einzuspannen, umfasst.
  3. Verstärkungsverfahren nach einem der Ansprüche 1 oder 2, bei dem auf mindestens einer der Seiten des Bauelements (1) mindestens zwei angrenzende Verstärkungsmodule (2, 2n, 2(n+1)) aus Massivholz oder verleimtem Schichtholz befestigt werden, die durch den nachgespannten Strang (6a, 6b) verbunden sind.
  4. Verstärkungsverfahren nach den Ansprüchen 2 und 3, bei dem eine erste Stützplatte (8) an einem ersten Ende des ersten Verstärkungsmoduls (2) befestigt wird, das zweite Ende des ersten Verstärkungsmoduls (2) mit einem ersten Ende des zweiten angrenzenden Verstärkungsmoduls (2n) verbunden wird, und eine zweite Stützplatte (8) an einem zweiten Ende des zweiten Verstärkungsmoduls (2n) befestigt wird.
  5. Verstärkungsverfahren nach Anspruch 2 oder 4, bei dem Brandschutzmittel aus Holz (14) um die Stützplatten (8) angeordnet werden.
  6. Verstärkungsverfahren nach einem der vorhergehenden Ansprüche, bei dem die Verankerungsvorrichtung ein Bindemittel (15) ist, das geeignet ist, mindestens einen Teil des Strangs (6a, 6b) in der Aufnahme (5a, 5b), die in dem(n) Verstärkungsmodul(en) (2, 2n, 2(n+1)) vorgesehen ist, zu versiegeln.
  7. Verstärkungsverfahren nach einem der vorhergehenden Ansprüche, bei dem die Verbinder (3) Schrauben oder Stifte sind, die durch ein Bindemittel versiegelt sind oder nicht.
  8. Verstärkungsverfahren nach Anspruch 6 oder 7, bei dem das Bindemittel (15) ein Harz oder ein Klebstoff ist.
  9. Verstärkungsverfahren nach einem der vorhergehenden Ansprüche, bei dem der Strang (6a, 6b) aus metallischem Material, aus synthetischem Material, aus Verbundstoff oder aus mineralischem Material hergestellt ist.
  10. Verstärkungsverfahren nach einem der vorhergehenden Ansprüche, bei dem die Aufnahme (5a, 5b) für den Strang (6a, 6b) in dem(n) Verstärkungsmodul(en) (2, 2n, 2(n+1)) eingearbeitet ist.
  11. Verstärkungsverfahren nach einem der Ansprüche 1 bis 9, bei dem die Aufnahme (5a, 5b) für den Strang (6a, 6b) hergestellt ist, wobei Lücken zwischen den Lamellen des(der) Verstärkungsmoduls(e) (2, 2n, 2(n+1)) aus verleimtem Schichtholz bei ihrer Herstellung gelassen werden.
  12. Verstärkungsverfahren nach Anspruch 11, bei dem eine Hülle in die eine Aufnahme bildenden Lücken vor dem Anlegen einer Druckkraft, die für die Herstellung des Verstärkungsmoduls aus verleimtem Schichtholz notwendig ist, eingesetzt wird.
  13. Verstärkungsverfahren nach einem der vorhergehenden Ansprüche, bei dem die Aufnahme (5a, 5b) im Wesentlichen in Bezug zur Längsachse des(der) Verstärkungsmoduls(e) (2, 2n, 2(n+1)) geneigt ist.
  14. Verstärkungsverfahren nach einem der vorhergehenden Ansprüche, bei dem das Verstärkungsmodul (2, 2n, 2(n+1)) an dem zu verstärkenden Träger (1) durch Kleben befestigt wird.
  15. Verstärkungsverfahren nach einem der vorhergehenden Ansprüche, bei dem mindestens eine Schrumpfarmierung (13) in einer Bohrung positioniert wird, die in dem(n) Verstärkungsmodul(en) (2, 2n, 2(n+1)) bzw. dem zu verstärkenden Träger (1) vorgesehen ist.
EP14190572.9A 2013-10-30 2014-10-28 Verstärkungsverfahren eines Bauelements aus Holz durch den Zusammenbau eines nachgespannten Verstärkungsmoduls Active EP2868829B1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR1360619A FR3012497B1 (fr) 2013-10-30 2013-10-30 Procede de renforcement d'un element de construction en bois par assemblage d'un module de renfort mis en post-tension

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EP2868829A1 EP2868829A1 (de) 2015-05-06
EP2868829B1 true EP2868829B1 (de) 2017-12-13

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EP (1) EP2868829B1 (de)
FR (1) FR3012497B1 (de)

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RU2753123C1 (ru) * 2020-10-09 2021-08-11 Павел Николаевич Смирнов Стыковое соединение деревянных конструкций с применением вклеенных и клеевинтовых стержней с метрической резьбой

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CN107190999B (zh) * 2017-05-18 2019-04-05 北京交通大学 一种木柱多功能抱箍及其制作方法
CN110878635B (zh) * 2019-11-04 2020-11-24 北京城建设计发展集团股份有限公司 基于差值控制的装配式构件拼装无级持续张拉控制方法
CN112982196A (zh) * 2021-03-15 2021-06-18 吉林建筑大学 一种桥梁预应力加固方法

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WO1982003647A1 (fr) * 1981-04-09 1982-10-28 Zak Telesphore Dispositif d'amelioration de la resistance a la flexion de poutres en bois
JPH02171446A (ja) * 1988-12-22 1990-07-03 Nobuyuki Ataka 木質系要素を用いた初期応力導入方式による構造体

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
RU2753123C1 (ru) * 2020-10-09 2021-08-11 Павел Николаевич Смирнов Стыковое соединение деревянных конструкций с применением вклеенных и клеевинтовых стержней с метрической резьбой

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FR3012497A1 (fr) 2015-05-01
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