EP0034224A2 - Verfahren zum Verstärken von Holzbalken und so erhaltene Balken - Google Patents

Verfahren zum Verstärken von Holzbalken und so erhaltene Balken Download PDF

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Publication number
EP0034224A2
EP0034224A2 EP80200431A EP80200431A EP0034224A2 EP 0034224 A2 EP0034224 A2 EP 0034224A2 EP 80200431 A EP80200431 A EP 80200431A EP 80200431 A EP80200431 A EP 80200431A EP 0034224 A2 EP0034224 A2 EP 0034224A2
Authority
EP
European Patent Office
Prior art keywords
beams
layer
fibers
holes
reinforcing
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.)
Withdrawn
Application number
EP80200431A
Other languages
English (en)
French (fr)
Other versions
EP0034224A3 (de
Inventor
Dirk De Neef
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.)
EMERGO CHEMICAL COATING NV
Original Assignee
EMERGO CHEMICAL COATING NV
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
Priority claimed from BE2/58408A external-priority patent/BE881734A/nl
Application filed by EMERGO CHEMICAL COATING NV filed Critical EMERGO CHEMICAL COATING NV
Publication of EP0034224A2 publication Critical patent/EP0034224A2/de
Publication of EP0034224A3 publication Critical patent/EP0034224A3/de
Withdrawn legal-status Critical Current

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Classifications

    • 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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
    • B27M—WORKING OF WOOD NOT PROVIDED FOR IN SUBCLASSES B27B - B27L; MANUFACTURE OF SPECIFIC WOODEN ARTICLES
    • B27M3/00—Manufacture or reconditioning of specific semi-finished or finished articles
    • B27M3/0013—Manufacture or reconditioning of specific semi-finished or finished articles of composite or compound articles
    • B27M3/0026—Manufacture or reconditioning of specific semi-finished or finished articles of composite or compound articles characterised by oblong elements connected laterally
    • B27M3/0046—Manufacture or reconditioning of specific semi-finished or finished articles of composite or compound articles characterised by oblong elements connected laterally by rods or tie wires
    • 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
    • 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
    • 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

Definitions

  • the present invention relates to a method for reinforcing wooden beams and extends to the wooden beams thus reinforced.
  • the invention is primarily, but not exclusively, aimed at restoring old beams or strengthening existing structural beams with a view to adapting their resistance to new conditions of use.
  • the system according to the present invention belongs to the first group.
  • the present invention proposes to offer an effective and perfectly satisfactory solution to this problem, that is to say of the meeting of two beams of any size in a mechanical whole.
  • Reinforcing beam 1 is an old gnawed beam, the bad parts of which must be completely removed and any hollows must be filled with an appropriate epoxy resin or a suitable mixture of epoxy resin.
  • the contact surface, to which the new reinforcement beam 2 will apply, must be carefully flattened with the plane and the beam must be carefully smoothed over its entire surface by sandblasting.
  • Said contact surface is coated with a layer of glass fibers 3 of 300-400 g / m 2 , on which the reinforcing beam 2 is placed.
  • anchoring holes 4 which form a vertical angle of about 45 ° relative to the transverse section plane of the beams.
  • these anchor holes are staggered in two rows. The number, interval and vertical angle of the holes vary from case to case.
  • each anchoring hole 4 is inserted a reinforcing rod 5, for example in the form of a synthetic resin rod reinforced with glass fibers.
  • a reinforcing rod 5 for example in the form of a synthetic resin rod reinforced with glass fibers.
  • the joints between the two beams are then closed using a formwork, a cement-based mortar or synthetic resin, or bituminous canvas.
  • a suitable mixture based on epoxy resins is then introduced by casting or injection so as to completely fill the holes and completely impregnate the layer of fibers.
  • the epoxy resin mixture is sufficiently cured after approximately 24 hours.
  • the hole plug is removed and the remaining slots are stuffed by injecting an epoxy resin or other suitable product.
  • the soiled parts of the beam are finally thoroughly cleaned and, if necessary, painted.
  • An oak wood beam composed of two beams glued together by the method according to the invention and having a length of 2000 mm, a height of 400 mm and a width of 200 mm, is placed on two supports spaced 1700 mm apart and gradually charged in the middle.
  • the following deflections are measured: 3.5 mm under a load of 10,000 kg, 5.48 mm under a load of 15,000 kg and 6.85 mm under a load of 18,000 kg. Break at 30,000 kg.

Landscapes

  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Structural Engineering (AREA)
  • Wood Science & Technology (AREA)
  • Civil Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • Mechanical Engineering (AREA)
  • Forests & Forestry (AREA)
  • Manufacturing & Machinery (AREA)
  • Rod-Shaped Construction Members (AREA)
EP80200431A 1980-02-15 1980-05-08 Verfahren zum Verstärken von Holzbalken und so erhaltene Balken Withdrawn EP0034224A3 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
BE58408 1980-02-15
BE2/58408A BE881734A (nl) 1980-02-15 1980-02-15 Werkwijze voor het verstevigen van houten balken en aldus bekomen balken

Publications (2)

Publication Number Publication Date
EP0034224A2 true EP0034224A2 (de) 1981-08-26
EP0034224A3 EP0034224A3 (de) 1982-09-15

Family

ID=3865494

Family Applications (1)

Application Number Title Priority Date Filing Date
EP80200431A Withdrawn EP0034224A3 (de) 1980-02-15 1980-05-08 Verfahren zum Verstärken von Holzbalken und so erhaltene Balken

Country Status (1)

Country Link
EP (1) EP0034224A3 (de)

Cited By (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2134956A (en) * 1983-02-10 1984-08-22 Rickards Timber Treatment Limi Upgrading or restoring a timber beam
FR2546439A1 (fr) * 1983-05-25 1984-11-30 Cougnaud Fils Sa Procede d'assemblage de lames planes et panneau ainsi obtenu
GB2150969A (en) * 1983-12-06 1985-07-10 Dinardo And Partners Restoring and strengthening of timber components
EP0163781A1 (de) * 1984-05-02 1985-12-11 Groot Lemmer B.V. Vorrichtung und Verfahren zum Fertigen eines lamellierten und vorgespannten Holzbalkens
FR2585393A1 (fr) * 1985-07-29 1987-01-30 Renofors France Poutre ou autre element de construction en bois renforce au moyen d'une armature, et procede pour sa realisation
EP1596017A2 (de) * 2004-05-06 2005-11-16 Berg, Gerhard, Prof.Dr.-Ing. Verfahren zur Erhöhung der Tragfähigkeit, Steifigkeit und Schwingungsdämpfung einer Holzbalkendeckenanordnung und Holzbalkendeckenanordnung mit erhöhter Tragfähigkeit, Steifigkeit und Schwingungsdämpfung
FR2871089A1 (fr) * 2004-06-02 2005-12-09 Christian Plee Procede de renforcement et/ou de reparation d'une structure a renforcer
WO2008148897A1 (es) * 2007-06-06 2008-12-11 Mikel Landa Esparza Procedimiento para la restauración in situ de vigas de madera
WO2010057243A1 (en) * 2008-11-18 2010-05-27 Patrick Thornton Timber structural member
US8910454B2 (en) 2008-02-01 2014-12-16 Loggo IP Pty. Ltd. Timber structural member
FR3012496A1 (fr) * 2013-10-30 2015-05-01 Lefevre M Procede de renforcement d'un element de construction par assemblage de modules de renfort et d'au moins un element de terminaison
FR3012497A1 (fr) * 2013-10-30 2015-05-01 Lefevre M Procede de renforcement d'un element de construction en bois par assemblage d'un module de renfort mis en post-tension
FR3012495A1 (fr) * 2013-10-30 2015-05-01 Lefevre M Procede de renforcement d'un element de construction en bois par un module de renfort
NL2014680A (en) * 2015-04-20 2016-10-24 Sealteq│Group B V Reinforcement of a masonry wall.

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1310120A (de) * 1963-03-06
CH398023A (de) * 1962-04-03 1965-08-31 Kengeter Kurt Holzbauelement und dessen Verwendung
NL7207255A (en) * 1972-05-29 1973-12-03 Comatting woodworm - esp in building's of historic interest by injected reinforcement
FR2195745A1 (de) * 1972-08-10 1974-03-08 Balm Bv
DE2451639A1 (de) * 1974-10-30 1976-05-06 Hans Binker Verfahren zur erhoehung der festigkeit von hoelzern und anderen baustoffen
DE2510262A1 (de) * 1975-03-08 1976-09-09 Hans Binker Verfahren zur erhoehung der festigkeit von hoelzern und anderen baustoffen

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1310120A (de) * 1963-03-06
CH398023A (de) * 1962-04-03 1965-08-31 Kengeter Kurt Holzbauelement und dessen Verwendung
NL7207255A (en) * 1972-05-29 1973-12-03 Comatting woodworm - esp in building's of historic interest by injected reinforcement
FR2195745A1 (de) * 1972-08-10 1974-03-08 Balm Bv
DE2451639A1 (de) * 1974-10-30 1976-05-06 Hans Binker Verfahren zur erhoehung der festigkeit von hoelzern und anderen baustoffen
DE2510262A1 (de) * 1975-03-08 1976-09-09 Hans Binker Verfahren zur erhoehung der festigkeit von hoelzern und anderen baustoffen

Cited By (23)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2134956A (en) * 1983-02-10 1984-08-22 Rickards Timber Treatment Limi Upgrading or restoring a timber beam
FR2546439A1 (fr) * 1983-05-25 1984-11-30 Cougnaud Fils Sa Procede d'assemblage de lames planes et panneau ainsi obtenu
GB2150969A (en) * 1983-12-06 1985-07-10 Dinardo And Partners Restoring and strengthening of timber components
EP0163781A1 (de) * 1984-05-02 1985-12-11 Groot Lemmer B.V. Vorrichtung und Verfahren zum Fertigen eines lamellierten und vorgespannten Holzbalkens
FR2585393A1 (fr) * 1985-07-29 1987-01-30 Renofors France Poutre ou autre element de construction en bois renforce au moyen d'une armature, et procede pour sa realisation
EP1596017A2 (de) * 2004-05-06 2005-11-16 Berg, Gerhard, Prof.Dr.-Ing. Verfahren zur Erhöhung der Tragfähigkeit, Steifigkeit und Schwingungsdämpfung einer Holzbalkendeckenanordnung und Holzbalkendeckenanordnung mit erhöhter Tragfähigkeit, Steifigkeit und Schwingungsdämpfung
EP1596017A3 (de) * 2004-05-06 2007-04-11 Berg, Gerhard, Prof.Dr.-Ing. Verfahren zur Erhöhung der Tragfähigkeit, Steifigkeit und Schwingungsdämpfung einer Holzbalkendeckenanordnung und Holzbalkendeckenanordnung mit erhöhter Tragfähigkeit, Steifigkeit und Schwingungsdämpfung
FR2871089A1 (fr) * 2004-06-02 2005-12-09 Christian Plee Procede de renforcement et/ou de reparation d'une structure a renforcer
WO2008148897A1 (es) * 2007-06-06 2008-12-11 Mikel Landa Esparza Procedimiento para la restauración in situ de vigas de madera
US8910454B2 (en) 2008-02-01 2014-12-16 Loggo IP Pty. Ltd. Timber structural member
US9605431B2 (en) 2008-02-01 2017-03-28 Loggo Ip Pty Ltd Timber structural member with embedded web
EP2350408A1 (de) * 2008-11-18 2011-08-03 Loggo IP Pty Ltd. in its Capacity as Trustee for Thornton IP Trust Holzstrukturelement
EP2350408A4 (de) * 2008-11-18 2014-09-17 Loggo Ip Pty Ltd In Its Capacity As Trustee For Thornton Ip Trust Holzstrukturelement
WO2010057243A1 (en) * 2008-11-18 2010-05-27 Patrick Thornton Timber structural member
FR3012496A1 (fr) * 2013-10-30 2015-05-01 Lefevre M Procede de renforcement d'un element de construction par assemblage de modules de renfort et d'au moins un element de terminaison
FR3012497A1 (fr) * 2013-10-30 2015-05-01 Lefevre M Procede de renforcement d'un element de construction en bois par assemblage d'un module de renfort mis en post-tension
FR3012495A1 (fr) * 2013-10-30 2015-05-01 Lefevre M Procede de renforcement d'un element de construction en bois par un module de renfort
EP2868829A1 (de) * 2013-10-30 2015-05-06 M Lefevre Verstärkungsverfahren eines Bauelements aus Holz durch den Zusammenbau eines nachgespannten Verstärkungsmoduls
EP2868828A1 (de) * 2013-10-30 2015-05-06 M Lefevre Verstärkungsverfahren eines Bauelements durch Zusammenbau von Verstärkungsmodulen und mindestens einem Abschlusselement
EP2868841A1 (de) * 2013-10-30 2015-05-06 M Lefevre Verstärkungsverfahren eines Bauelements aus Holz durch ein Verstärkungsmodul
NL2014680A (en) * 2015-04-20 2016-10-24 Sealteq│Group B V Reinforcement of a masonry wall.
WO2016171555A1 (en) * 2015-04-20 2016-10-27 Sealteq | Group B.V. Reinforced masonry wall
US11028604B2 (en) 2015-04-20 2021-06-08 Sealteq I Group B.V. Reinforced masonry wall

Also Published As

Publication number Publication date
EP0034224A3 (de) 1982-09-15

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PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

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Inventor name: DE NEEF, DIRK