EP0141782A2 - Verfahren zur Restaurierung von Trägern und zur Erhöhung ihrer Festigkeit - Google Patents

Verfahren zur Restaurierung von Trägern und zur Erhöhung ihrer Festigkeit Download PDF

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Publication number
EP0141782A2
EP0141782A2 EP84810503A EP84810503A EP0141782A2 EP 0141782 A2 EP0141782 A2 EP 0141782A2 EP 84810503 A EP84810503 A EP 84810503A EP 84810503 A EP84810503 A EP 84810503A EP 0141782 A2 EP0141782 A2 EP 0141782A2
Authority
EP
European Patent Office
Prior art keywords
bars
mass
mortar
metal
metal bar
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
EP84810503A
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English (en)
French (fr)
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EP0141782A3 (en
EP0141782B1 (de
Inventor
René Lacroix
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.)
Individual
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Individual
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Filing date
Publication date
Application filed by Individual filed Critical Individual
Priority to AT84810503T priority Critical patent/ATE29547T1/de
Publication of EP0141782A2 publication Critical patent/EP0141782A2/de
Publication of EP0141782A3 publication Critical patent/EP0141782A3/fr
Application granted granted Critical
Publication of EP0141782B1 publication Critical patent/EP0141782B1/de
Expired legal-status Critical Current

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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
    • 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 reinforcement is obtained by adding reinforcements, usually metallic q ues, as in the BONES document 25 31 656 or DE PS 547 576, or by prestressing the beam , as indicated in PCT International Application No. WO 82/03647.
  • Still other techniques advocate a reinforcement based at least partially on the use of synthetic resin, in particular epoxy resin as described in documents DE AS 24 51 639 and DE PS 22 61 820.
  • the present invention presents a solution which satisfies both the technical requirements related to the reinforcement and the aesthetic requirements.
  • a considerable advantage of the present invention is that it can be applied under very difficult access conditions, which is generally the case.
  • the present invention makes it possible to take advantage of the arrow of the old beams while the known techniques simply ignore it or see> their efficiency reduced by the existence of it while modifying its original appearance.
  • the beam (1) has an arrow which is proportionately exaggerated in the drawing in order to make it more easily understandable.
  • a tongue (7) is removed and then a groove (8) is also produced, in which there is a metal bar (9) which will also be embedded in a mass of epoxy mortar (10).
  • L then creates a formwork (13) with wood of the same essence and the same age as that of the beam.
  • the formwork is adjusted so that the outside of the formwork is an extension of the beam. In order to make this adjustment as imperceptible as possible, it is possible, as shown in the drawing, to make a swallow tail (18).
  • a simple formwork (not shown) is produced at the top of the beam for the part of the mortar mass (6) which exceeds the upper surface of the beam.
  • the lower groove 8 is closed using the tongue (7).
  • Figure 2 is illustrated a variant intervening mainly in two types of situations. First when the core of the beam is reached and secondly when the removal of unhealthy wood requires amputating the beam on an entire section.
  • the replacement of the removed wood could be done only with resin or mortar poured either in the healthy walls of the beam or in a formwork produced according to the example given in the first variant.
  • the price of the epoxy resin can dissuade the contractor from choosing the renovation solution in favor of the outright replacement of the beam.
  • the second variant involves a new piece of dry wood (17) which partially occupies the space left free by the elimination of unhealthy wood.
  • the piece of dry wood is made integral by the fiberglass bars (15) which are then sealed on the one hand in healthy wood (Fig.l No 11.) and on the other hand in the piece of dry wood (17).
  • the formwork is produced as indicated in the first variant.
  • Glass fiber bars were placed vertically so that their upper end was anchored in the mortar mass comprising the 3 metal bars. These bars were divided into 19 pairs, the spaces separating each of the pairs being smaller around the supports than around the middle of the beam.
  • the overall inertia of the new resistant section represents an increase of 240% compared to the old one, (calculated as if the wood were not not reached).
  • the present invention has multiple advantages, first of all a substantial increase in resistance. j
  • the very high adaptability of the process makes it possible to carry out each renovation taking into account the particularities of the species, access, condition of the old wood, importance, location and configuration of the areas where the old wood is no longer healthy, conservation of aesthetic characteristics.
  • the present invention also finds its application when the old beam has a satisfactory static, but one wishes to reduce its modulus of elasticity to eliminate or attenuate vibrations for example.

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  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • Mechanical Engineering (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Rod-Shaped Construction Members (AREA)
  • Apparatuses And Processes For Manufacturing Resistors (AREA)
  • Internal Circuitry In Semiconductor Integrated Circuit Devices (AREA)
  • Iron Core Of Rotating Electric Machines (AREA)
EP84810503A 1983-10-24 1984-10-15 Verfahren zur Restaurierung von Trägern und zur Erhöhung ihrer Festigkeit Expired EP0141782B1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT84810503T ATE29547T1 (de) 1983-10-24 1984-10-15 Verfahren zur restaurierung von traegern und zur erhoehung ihrer festigkeit.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH5752/83 1983-10-24
CH5752/83A CH654060A5 (fr) 1983-10-24 1983-10-24 Procede de restauration de poutres de bois permettant une augmentation de leur resistance.

Publications (3)

Publication Number Publication Date
EP0141782A2 true EP0141782A2 (de) 1985-05-15
EP0141782A3 EP0141782A3 (en) 1985-07-03
EP0141782B1 EP0141782B1 (de) 1987-09-09

Family

ID=4298752

Family Applications (1)

Application Number Title Priority Date Filing Date
EP84810503A Expired EP0141782B1 (de) 1983-10-24 1984-10-15 Verfahren zur Restaurierung von Trägern und zur Erhöhung ihrer Festigkeit

Country Status (4)

Country Link
EP (1) EP0141782B1 (de)
AT (1) ATE29547T1 (de)
CH (1) CH654060A5 (de)
DE (1) DE3466031D1 (de)

Cited By (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
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
EP0462597A1 (de) * 1990-06-19 1991-12-27 REALVOTE GmbH Konstruktionselement mit einem Holz- und einem Kunststoffteil
GB2299828A (en) * 1995-04-12 1996-10-16 Rotafix Repairing or constructing timber beams
EP1045091A1 (de) * 1999-04-16 2000-10-18 M. Lefevre S.A. Verstärkungsverfahren für Bauelement
FR2871089A1 (fr) * 2004-06-02 2005-12-09 Christian Plee Procede de renforcement et/ou de reparation d'une structure a renforcer
EP2376724A4 (de) * 2009-01-07 2012-06-20 Cfs Concrete Forming Systems Inc Verfahren und vorrichtung zum wiederherstellen, reparieren, verstärken und/oder schützen von strukturen mithilfe von beton
US9784005B2 (en) 2012-01-05 2017-10-10 Cfs Concrete Forming Systems Inc. Systems for restoring, repairing, reinforcing, protecting, insulating and/or cladding structures with locatable stand-off components
US9783991B2 (en) 2013-12-06 2017-10-10 Cfs Concrete Forming Systems Inc. Structure cladding trim components and methods for fabrication and use of same
US9790681B2 (en) 2012-01-05 2017-10-17 Cfs Concrete Forming Systems Inc. Panel-to-panel connections for stay-in-place liners used to repair structures
US9879436B2 (en) 2009-01-07 2018-01-30 Cfs Concrete Forming Systems Inc Methods and apparatus for restoring, repairing, reinforcing and/or protecting structures using concrete
US9982444B2 (en) 2014-04-04 2018-05-29 Cfs Concrete Forming Systems Inc. Liquid and gas-impermeable connections for panels of stay-in-place form-work systems
US10022825B2 (en) 2010-07-06 2018-07-17 Cfs Concrete Forming Systems Inc. Method for restoring, repairing, reinforcing, protecting, insulating and/or cladding a variety of structures
US10151119B2 (en) 2012-01-05 2018-12-11 Cfs Concrete Forming Systems Inc. Tool for making panel-to-panel connections for stay-in-place liners used to repair structures and methods for using same
US10280636B2 (en) 2007-11-09 2019-05-07 Cfs Concrete Forming Systems Inc. Connector components for form-work systems and methods for use of same
US10731333B2 (en) 2015-12-31 2020-08-04 Cfs Concrete Forming Systems Inc. Structure-lining apparatus with adjustable width and tool for same
US11180915B2 (en) 2017-04-03 2021-11-23 Cfs Concrete Forming Systems Inc. Longspan stay-in-place liners
US11512483B2 (en) 2017-12-22 2022-11-29 Cfs Concrete Forming Systems Inc. Snap-together standoffs for restoring, repairing, reinforcing, protecting, insulating and/or cladding structures

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3828476C2 (de) * 1988-08-22 1998-12-10 Beta Loempel Buese Gmbh Verfahren zur Tragfähigkeitserhöhung oder -wiederherstellung
AU2008234382A1 (en) 2007-04-02 2008-10-09 Cfs Concrete Forming Systems Inc. Methods and apparatus for providing linings on concrete structures
WO2009092158A1 (en) 2008-01-21 2009-07-30 Octaform Systems Inc. Stay-in-place form systems for windows and other building openings
US8793953B2 (en) 2009-02-18 2014-08-05 Cfs Concrete Forming Systems Inc. Clip-on connection system for stay-in-place form-work
US9206614B2 (en) 2011-11-24 2015-12-08 Cfs Concrete Forming Systems Inc. Stay-in-place formwork with engaging and abutting connections
CA2855739C (en) 2011-11-24 2016-10-11 Cfs Concrete Forming Systems Inc. Stay-in-place formwork with anti-deformation panels
CA3128405A1 (en) 2019-02-08 2020-08-13 Cfs Concrete Forming Systems Inc. Retainers for restoring, repairing, reinforcing, protecting, insulating and/or cladding structures

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1759680A1 (de) * 1965-03-19 1971-06-16 Rehm Gallus Verfahren zum nachtraeglichen Verstaerken von Spannbeton-Deckentraegern,deren Bewehrung beschaedigt ist
DE2510262A1 (de) * 1975-03-08 1976-09-09 Hans Binker Verfahren zur erhoehung der festigkeit von hoelzern und anderen baustoffen
GB2060044B (en) * 1979-10-05 1983-05-25 Rickards Timber Treatment Ltd Beam restoration
FR2510163B1 (fr) * 1981-07-22 1986-05-02 Renofors France Procede de renforcement d'une poutre en bois
DE3133014C2 (de) * 1981-08-20 1985-03-21 Lömpel-Bautenschutz GmbH + Co KG, 8725 Arnstein Verfahren zur Restaurierung von Holzbalken

Cited By (26)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
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
EP0462597A1 (de) * 1990-06-19 1991-12-27 REALVOTE GmbH Konstruktionselement mit einem Holz- und einem Kunststoffteil
GB2299828A (en) * 1995-04-12 1996-10-16 Rotafix Repairing or constructing timber beams
GB2299828B (en) * 1995-04-12 1998-08-12 Rotafix Construction and repair of timber components
EP1045091A1 (de) * 1999-04-16 2000-10-18 M. Lefevre S.A. Verstärkungsverfahren für Bauelement
FR2792355A1 (fr) * 1999-04-16 2000-10-20 Lefevre Sa M Procede de renforcement d'un element de construction
FR2871089A1 (fr) * 2004-06-02 2005-12-09 Christian Plee Procede de renforcement et/ou de reparation d'une structure a renforcer
US10280636B2 (en) 2007-11-09 2019-05-07 Cfs Concrete Forming Systems Inc. Connector components for form-work systems and methods for use of same
EP2376724A4 (de) * 2009-01-07 2012-06-20 Cfs Concrete Forming Systems Inc Verfahren und vorrichtung zum wiederherstellen, reparieren, verstärken und/oder schützen von strukturen mithilfe von beton
US10662661B2 (en) 2009-01-07 2020-05-26 Cfs Concrete Forming Systems Inc. Methods and apparatus for restoring, repairing, reinforcing and/or protecting structures using concrete
US12037801B2 (en) 2009-01-07 2024-07-16 Cfs Concrete Forming Systems Inc. Methods and apparatus for restoring, repairing, reinforcing and/or protecting structures using concrete
US9879436B2 (en) 2009-01-07 2018-01-30 Cfs Concrete Forming Systems Inc Methods and apparatus for restoring, repairing, reinforcing and/or protecting structures using concrete
US11512484B2 (en) 2009-01-07 2022-11-29 Cfs Concrete Forming Systems Inc. Methods and apparatus for restoring, repairing, reinforcing and/or protecting structures using concrete
US10022825B2 (en) 2010-07-06 2018-07-17 Cfs Concrete Forming Systems Inc. Method for restoring, repairing, reinforcing, protecting, insulating and/or cladding a variety of structures
US9784005B2 (en) 2012-01-05 2017-10-10 Cfs Concrete Forming Systems Inc. Systems for restoring, repairing, reinforcing, protecting, insulating and/or cladding structures with locatable stand-off components
US10151119B2 (en) 2012-01-05 2018-12-11 Cfs Concrete Forming Systems Inc. Tool for making panel-to-panel connections for stay-in-place liners used to repair structures and methods for using same
US9790681B2 (en) 2012-01-05 2017-10-17 Cfs Concrete Forming Systems Inc. Panel-to-panel connections for stay-in-place liners used to repair structures
US9783991B2 (en) 2013-12-06 2017-10-10 Cfs Concrete Forming Systems Inc. Structure cladding trim components and methods for fabrication and use of same
US9982444B2 (en) 2014-04-04 2018-05-29 Cfs Concrete Forming Systems Inc. Liquid and gas-impermeable connections for panels of stay-in-place form-work systems
US10450763B2 (en) 2014-04-04 2019-10-22 Cfs Concrete Forming Systems Inc. Liquid and gas-impermeable connections for panels of stay-in-place form-work systems
US11053676B2 (en) 2015-12-31 2021-07-06 Cfs Concrete Forming Systems Inc. Structure-lining apparatus with adjustable width and tool for same
US11499308B2 (en) 2015-12-31 2022-11-15 Cfs Concrete Forming Systems Inc. Structure-lining apparatus with adjustable width and tool for same
US10731333B2 (en) 2015-12-31 2020-08-04 Cfs Concrete Forming Systems Inc. Structure-lining apparatus with adjustable width and tool for same
US11180915B2 (en) 2017-04-03 2021-11-23 Cfs Concrete Forming Systems Inc. Longspan stay-in-place liners
US11512483B2 (en) 2017-12-22 2022-11-29 Cfs Concrete Forming Systems Inc. Snap-together standoffs for restoring, repairing, reinforcing, protecting, insulating and/or cladding structures
US11761220B2 (en) 2017-12-22 2023-09-19 Cfs Concrete Forming Systems Inc. Snap-together standoffs for restoring, repairing, reinforcing, protecting, insulating and/or cladding structures

Also Published As

Publication number Publication date
CH654060A5 (fr) 1986-01-31
DE3466031D1 (en) 1987-10-15
EP0141782A3 (en) 1985-07-03
EP0141782B1 (de) 1987-09-09
ATE29547T1 (de) 1987-09-15

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