WO1992013155A1 - Procede de reparation d'une structure - Google Patents

Procede de reparation d'une structure Download PDF

Info

Publication number
WO1992013155A1
WO1992013155A1 PCT/GB1991/002329 GB9102329W WO9213155A1 WO 1992013155 A1 WO1992013155 A1 WO 1992013155A1 GB 9102329 W GB9102329 W GB 9102329W WO 9213155 A1 WO9213155 A1 WO 9213155A1
Authority
WO
WIPO (PCT)
Prior art keywords
groove
grouting material
process according
wall
rods
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.)
Ceased
Application number
PCT/GB1991/002329
Other languages
English (en)
Inventor
David Peter Atkins
Krystyna Danuta Freer
John Bernard Alfred Ainsworth
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.)
EXECUTIVE INSULATION (MIDLANDS) Ltd
Original Assignee
EXECUTIVE INSULATION (MIDLANDS) Ltd
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 GB919101748A external-priority patent/GB9101748D0/en
Priority claimed from GB919102711A external-priority patent/GB9102711D0/en
Application filed by EXECUTIVE INSULATION (MIDLANDS) Ltd filed Critical EXECUTIVE INSULATION (MIDLANDS) Ltd
Priority to DE69115295T priority Critical patent/DE69115295T2/de
Priority to EP92901628A priority patent/EP0568548B1/fr
Publication of WO1992013155A1 publication Critical patent/WO1992013155A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

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

Definitions

  • the invention relates to the repair of building
  • Structural failure in a wall generally calls for underpinning, which is expensive, or re-building, with consequent internal disruption and possible re-housing of the inhabitants.
  • the falling away of a wall or skin can sometimes be arrested by the introduction of ties normal to the surface.
  • EP 171250 A2 covers helical stainless steel rods for this purpose and such ties may be secured in an outer skin with a polyester resin, but this is not effective against compressive loads, such as are encountered through differential subsidence along a wall, for example.
  • EP 171250 A2 also says that a length of the (helical) wire may be inserted in the space left by raking out the mortar in cracked brickwork, after which the wall can be repointed around the inserted reinforcement.
  • the invention provides a process of repairing a structure which comprises cutting a groove in a surface of a wall, injecting a grouting material into the groove, embedding a rod along the groove in the grouting material, characterized by injecting further grouting material into
  • % material into the groove is finally pointed preferably to match the existing surface. All these steps can be performed externally, without internal disruption.
  • a horizontal groove is preferably cut in a mortar joint, and pointed to match adjacent mortar joints.
  • the groove is preferably horizontal. Concrete pads are positioned at intervals along the wall, and compression-resistant beams are created between the pads by a process according to the invention. If vertical, diagonal or inclined support is required the groove is cut accordingly, and the cut bricks are preferably repaired with brick slips adhered to a planed brick face.
  • the location and length of the groove(s) is determined from a survey to diagnose the cause of a fault, which might be lintel failure, thermal movement, roof loading, wall tie failure or differential movement.
  • the reinforcement requirement can be calculated from tables incorporating live and dead loading, bending movements, shear, tensile and compressive strengths. Thus a repair may be effected immediately without the need for a preliminary survey and calculation.
  • the groove is generally cut about 40 mm deep and 10 mm wide. If the groove is deeper, and it could be much deeper, up to about 175 mm for a 215 mm solid brick wall, the upper courses have to be reinforced first to prevent collapse. To reinforce adjacent courses in this way supports the whole section and eliminates gyratory forces. Debris is preferably blown out with compressed air.
  • the grouting material is preferably an epcxy resin, but may be a cementitious material in some circumstances, as they do not shrink on setting. More than two rods may be embedded in a single groove, each in the same way as the first two. The rods should be generally parallel to give lateral strength to the reinforcement, and to this end may be inserted with plastics sleeves along parts of the length of the rods or with spacers to centralize them in / the grouting material.
  • THe final layer of grouting material should be brought to about 25 mm of the surface to allow the pointing material to be retained.
  • the rods are preferably helical stainless steel rods about 6 mm in diameter. They may be provided with a central vein to increase the surface area and therefore the adhesion of the grouting material. Alternatively, the rods may be of another material, for example a steel, another metal or alloy, or polypropylene.
  • the rods may be plain cylindrical, of or polygonal section, for example rectangular, square or triangular, and may be roughened or deformed to improve adhesion with the grouting material.
  • Fig. 1a is a front view of a stretcher bond lintel repaired by a process according to the invention
  • Fig. 1b is a corresponding section on a slightly larger scale
  • Fig. 1c is a slightly modified alternative to Fig. 1b:
  • Fig. 2a is a front view of a flat soldier arch repaired
  • Fig. 2b is a corresponding section on a slightly larger scale
  • Fig. 3a is a front view of a curved arch repaired by a process according to the invention.
  • Fig. 3b is a corresponding section on a slightly larger scale
  • Fig. 4 is a section through a 215 solid brick wall repaired by a process according to the invention.
  • a repair 10 comprises two helical stainless steel rods in compression, while a repair 12 comprises two such rods in tension. It will be noted that the repairs extend beyond the width of the window openings.
  • Grooves are cut in the surface of the walls illustrated for the production of repairs 10 or 12.
  • Grouting material is Injected into the grooves.
  • a helical stainless steel rod is embedded along the groove in the grouting material. Further grouting material is injected into the groove.
  • a second helical stainless steel rod is embedded along the groove in the grouting material. Further grouting material is injected into the groove. The groove is finally pointed to match the original surface.

Landscapes

  • 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)
  • Working Measures On Existing Buildindgs (AREA)

Abstract

On répare la structure d'un bâtiment en creusant une rainure à la surface d'un mur, en injectant un coulis de ciment dans cette rainure et en encastrant une barre dans le coulis de ciment. On procède à une injection supplémentaire de coulis de ciment dans la rainure, on encastre une deuxième barre et on injecte encore du coulis de ciment. Enfin on jointoie la rainure de façon à l'adapter à la surface existante. Le coulis de ciment préféré est constitué d'une résine époxyde.
PCT/GB1991/002329 1991-01-26 1991-12-31 Procede de reparation d'une structure Ceased WO1992013155A1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
DE69115295T DE69115295T2 (de) 1991-01-26 1991-12-31 Bausanierungsverfahren.
EP92901628A EP0568548B1 (fr) 1991-01-26 1991-12-31 Procede de reparation d'une structure

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
GB919101748A GB9101748D0 (en) 1991-01-26 1991-01-26 Structural repair process
GB9101748.3 1991-01-26
GB9102711.0 1991-02-08
GB919102711A GB9102711D0 (en) 1991-02-08 1991-02-08 Structural repair process

Publications (1)

Publication Number Publication Date
WO1992013155A1 true WO1992013155A1 (fr) 1992-08-06

Family

ID=26298340

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/GB1991/002329 Ceased WO1992013155A1 (fr) 1991-01-26 1991-12-31 Procede de reparation d'une structure

Country Status (4)

Country Link
EP (1) EP0568548B1 (fr)
DE (1) DE69115295T2 (fr)
GB (1) GB2249120B (fr)
WO (1) WO1992013155A1 (fr)

Families Citing this family (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2270535B (en) * 1992-09-14 1996-10-09 William George Edscer Methods for reinforcing walls and reinforcement for use in such methods
GB9306857D0 (en) * 1993-04-01 1993-05-26 Ollis William H Methods of building reinforcements into walls
AU7618494A (en) * 1993-09-09 1995-03-27 William George Edscer Method for reinforcing a cavity wall
EP0674060A1 (fr) * 1994-03-04 1995-09-27 Wilhelm Modersohn GmbH & Co KG Verankerungstechnik Armature pour maçonnerie
GB2288842B (en) * 1994-04-22 1998-07-08 Bruce Anthony Wallace Day Stitch for brickwork
GB2302896B (en) * 1995-07-01 1997-11-05 William George Edscer Arch reinforcement
ATE219543T1 (de) * 1995-08-18 2002-07-15 Protec Ind Ltd Verstärkung von mauerwerkstrukturen
GB9611641D0 (en) * 1996-06-04 1996-08-07 Edscer William G Method of positioning retrospective reinforcement in masonry structures
AU8736198A (en) 1997-08-14 1999-03-08 William George Edscer Methods of reinforcing existing masonry structures
ITVR20010034A1 (it) * 2001-03-16 2002-09-16 Maurizio Piazza Metodo di produzione di una trave di legno armata e trave armata cosi' ottenuta
GB0300623D0 (en) * 2003-01-11 2003-02-12 Bersche Rolt Ltd Reinforcement of masonry structures
ATE364115T1 (de) * 2004-06-09 2007-06-15 Franco Consani Verfahren zur verfestigung oder verstärkung von mauerwerkstrukturen und dergleichen
CN108560947A (zh) * 2018-05-28 2018-09-21 上海天补材料科技有限公司 一种瓷砖石材内外墙加固的开槽释放应力工法
CN110173126A (zh) * 2019-04-22 2019-08-27 福建工程学院 一种石砌体房屋墙体加固方法
DE102023109547A1 (de) * 2023-04-17 2024-10-17 BWA Expert GmbH Verfahren zur Versiegelung einer mörtelfrei gemauerten Mauer, Füllwerkzeug zur Verwendung in dem Verfahren, Verwendung des Füllwerkzeugs

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE237526C (fr) *
DE1434075A1 (de) * 1961-05-26 1968-10-31 Ney Gyl Labor Kg Verfahren zur nachtraeglichen bzw. zusaetzlichen Bewehrung von aus Beton bestehenden Bauteilen
GB2007287A (en) * 1977-10-11 1979-05-16 Pynford Ltd Underpinning
GB2134956A (en) * 1983-02-10 1984-08-22 Rickards Timber Treatment Limi Upgrading or restoring a timber beam

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB593998A (en) * 1945-06-22 1947-10-30 Hermann Kirschenbaum Method for repairing cracks in walls
GB8419523D0 (en) * 1984-07-31 1984-09-05 Ollis W J B Reinforcements and ties

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE237526C (fr) *
DE1434075A1 (de) * 1961-05-26 1968-10-31 Ney Gyl Labor Kg Verfahren zur nachtraeglichen bzw. zusaetzlichen Bewehrung von aus Beton bestehenden Bauteilen
GB2007287A (en) * 1977-10-11 1979-05-16 Pynford Ltd Underpinning
GB2134956A (en) * 1983-02-10 1984-08-22 Rickards Timber Treatment Limi Upgrading or restoring a timber beam

Also Published As

Publication number Publication date
EP0568548B1 (fr) 1995-12-06
GB2249120B (en) 1993-04-07
EP0568548A1 (fr) 1993-11-10
DE69115295T2 (de) 1996-05-02
GB2249120A (en) 1992-04-29
DE69115295D1 (de) 1996-01-18
GB9125208D0 (en) 1992-01-29

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