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EP1880063B1 - Ancre de mur et mur creux ayant une telle ancre - Google Patents

Ancre de mur et mur creux ayant une telle ancre Download PDF

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Publication number
EP1880063B1
EP1880063B1 EP06723788A EP06723788A EP1880063B1 EP 1880063 B1 EP1880063 B1 EP 1880063B1 EP 06723788 A EP06723788 A EP 06723788A EP 06723788 A EP06723788 A EP 06723788A EP 1880063 B1 EP1880063 B1 EP 1880063B1
Authority
EP
European Patent Office
Prior art keywords
wall
cavity
anchor
insulation
anchors
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.)
Not-in-force
Application number
EP06723788A
Other languages
German (de)
English (en)
Other versions
EP1880063A1 (fr
Inventor
David Overton Chabre Holm
Peter Willem Gerard George Wuts
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.)
Rockwool AS
Original Assignee
Rockwool International AS
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 Rockwool International AS filed Critical Rockwool International AS
Priority to PL06723788T priority Critical patent/PL1880063T3/pl
Priority to EP06723788A priority patent/EP1880063B1/fr
Publication of EP1880063A1 publication Critical patent/EP1880063A1/fr
Application granted granted Critical
Publication of EP1880063B1 publication Critical patent/EP1880063B1/fr
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
    • E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
    • E04B1/38—Connections for building structures in general
    • E04B1/41—Connecting devices specially adapted for embedding in concrete or masonry
    • E04B1/4178—Masonry wall ties
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
    • E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
    • E04B1/62—Insulation or other protection; Elements or use of specified material therefor
    • E04B1/74—Heat, sound or noise insulation, absorption, or reflection; Other building methods affording favourable thermal or acoustical conditions, e.g. accumulating of heat within walls
    • E04B1/76—Heat, sound or noise insulation, absorption, or reflection; Other building methods affording favourable thermal or acoustical conditions, e.g. accumulating of heat within walls specifically with respect to heat only
    • E04B1/7608—Heat, sound or noise insulation, absorption, or reflection; Other building methods affording favourable thermal or acoustical conditions, e.g. accumulating of heat within walls specifically with respect to heat only comprising a prefabricated insulating layer, disposed between two other layers or panels
    • E04B1/7612—Heat, sound or noise insulation, absorption, or reflection; Other building methods affording favourable thermal or acoustical conditions, e.g. accumulating of heat within walls specifically with respect to heat only comprising a prefabricated insulating layer, disposed between two other layers or panels in combination with an air space
    • E04B1/7616—Heat, sound or noise insulation, absorption, or reflection; Other building methods affording favourable thermal or acoustical conditions, e.g. accumulating of heat within walls specifically with respect to heat only comprising a prefabricated insulating layer, disposed between two other layers or panels in combination with an air space with insulation-layer locating devices combined with wall ties

Definitions

  • the present invention relates an anchor for a cavity wall as defined in the preamble of claim 1 and a cavity wall comprising an anchor as defined in the preamble of claim 6.
  • a wall anchor and a cavity wall of such kind are known from WO 2005/021883 ( EP-A-1510629 ).
  • a wall anchor is disclosed which is made of a sheet material that is cut into a blank and mounting portions, i.e. the mounting flange and the insulation gripping projections are bent out of the plane.
  • This wall anchor is mounted on the inner wall after it has been raised, preferably together with fitting the insulation slabs.
  • the outer tip of the wall anchor is embedded into the mortar between the bricks during the raising of the outer wall.
  • GB-A-2 111 095 also discloses a wall anchor made of a sheet material which is cut into a blank and the insulation gripping projections are bent out of the plane.
  • This wall tie is embedded into the mortar between the bricks during the raising of the inner wall.
  • the outer tip is embedded into the mortar between the bricks during the raising of the outer wall.
  • This wall tie is only useable when the cavity wall includes an inner wall made of bricks that are stacked with an adhesive mortar in between.
  • this wall tie must also be bent to fit into the mortar layer between two brick layers. This could cause the insulation boards to be bent or dislocated.
  • wall ties are used to connect the inner and outer wall in order to stabilise the housing wall.
  • Wall anchors are made of metal, plastic or a combination thereof and they may have different shapes, e.g. rod-like or flat plates.
  • insulation boards are provided in the cavity. These boards are supported by the wall ties in the cavity.
  • the wall ties consist of transverse pins, e.g. wire pieces, which are fixed to the inner wall during its construction.
  • the insulation boards are then positioned between these protruding wires or mounted by penetrating the wires through the insulation board. Either way, this has the disadvantage that the boards are not accurately mounted, and may be dislocated when the wall ties are bent to fit between the brick layers of the outer wall.
  • the insulation may break apart, fall off or holes may be punched out.
  • a major disadvantage of these protruding wall ties is that construction workers risk getting hurt when working on a site where cavity walls are under construction.
  • the wall ties often are quite numerous, typically 4-6 pieces per square meter, in order to provide the required strength in the construction to withstand the wind load. By bending the wall ties in order to make them fit with the outer wall construction, the strength of these wall ties is somewhat reduced and there is a risk of some wall ties breaking off.
  • Building requirements generally prescribe a maximum elongation or compression of the wall anchors of 1 mm in the cavity wall. This calls for a high concentration of wall anchors per wall area.
  • the wall ties also constitute thermal bridges in the thermally insulated cavity wall construction, and from this perspective, as few wall anchors as possible is preferred, just as fewer wall anchors reduces the building costs involved, and the installation time is shorter.
  • the insulation slabs in the cavity wall may be securely mounted in their right positions by mounting the wall anchors to the finished inner wall during the insulation mounting operation.
  • the wall anchors When using a wall anchor according to the invention with a reinforcing rib, the wall anchors have superior bending resistance when mounted. This result in fewer wall anchors needed to achieve the required tie strength between the inner and outer walls. Thereby, the loss in thermal insulation due to the wall anchors is reduced just as the operation is faster as less wall anchors are to be mounted. This leads to a reduction in the building costs of raising a cavity wall according to the invention.
  • the wall anchor In order to be able to bend or twist the wall anchor to fit with a mortar layer in the outer wall, the wall anchor is formed with at least two elongated ribs that are formed in a line with a bendable and/or twistable portion therebetween.
  • the wall anchor may then be bent or twisted with an appropriate tool.
  • the wall anchor may be bent and/or twisted by hand, e.g. in the manipulating bendable/twistable portion between the elongated ribs.
  • a cavity wall In a preferred embodiment of a cavity wall according to the invention, three, preferably two or less wall anchors per square meter are provided. It is found that with a wall anchor according to the invention, a cavity wall meeting the required strength may be provided in both urban and rural areas in buildings of up to approx. 10 meters or even 12 meters in height. The exact number of wall anchors per square meter will usually depend on the location and the height of the building. In practise, it is found that an average of 1.4 wall anchors per square meter is normally sufficient, but for buildings with particular wind load, the average is approx. 2.0-2.5 wall anchors per square meter.
  • the wall anchors may be mounted with a substantially horizontal and/or vertical orientation of the plate-like portion.
  • the wall anchors according to the invention may be provided in either horizontally or vertically, extra strength may be provide and where extra wall anchors can be eliminated, which otherwise would be needed to secure the insulation slabs around openings in the wall, e.g. for doors and windows.
  • the wall anchor may advantageously be mounted in vertical position at the top of the building, where the top edge of the top row of insulation slabs otherwise cannot be supported by this type of anchor because of the insulation holding means penetrating into the insulation. Therefore, the wall anchor is placed between the neighbouring slabs in a vertical position. Because the wall anchor outer part has to be fixed within the horizontal mortar layer between the bricks this outer portion has to be twisted in order to be able to do so.
  • the wall anchors are preferably mounted on the inner wall by an elongated fastener mounted through a mounting hole in the wall anchors, which is positioned centrally on at the base of the mounting flange.
  • the mounting hole is positioned on the mounting flange close to the bend line dividing the mounting flange and the bridging portion.
  • Appropriate mounting tools are preferably used to shoot an elongated fastener, such as a dowel, into the inner wall for fixing the wall anchor to the inner wall.
  • the insulation slabs are fixed at their peripheral regions, e.g. bottom and top regions, by a series of insulation holding members, where said holding member are positioned on insulation edge region and fixed to the inner wall by elongated fasteners which are penetrated through a mounting hole in the holding member and through the underlying the insulation slab.
  • the insulation is properly fixed also along the edge regions in the cavity wall.
  • a series of fibrous insulation bricks having a relative high density may be provided on the foot of the inner wall for supporting the insulation slabs. Often a line of bricks are provided on the foot of the inner wall for supporting the insulation.
  • a thermal bridge through the cavity wall may be eliminated.
  • the outer tip of the wall anchor is provided with retention buckles, such as generally transversely orientated ribs relative to the orientation of the elongated portion.
  • retention buckles such as generally transversely orientated ribs relative to the orientation of the elongated portion.
  • the ribs on the wall anchor are formed in the centre line of the elongated portion of the bridging portion.
  • a simple distribution of the forces applied to the outer tip is transferred to the mounting flange and to the inner wall, and the risk of bending the wall anchor if it is to absorb a high load is reduced.
  • a cavity wall includes an inner wall 1, and outer wall 2 and a cavity 3 there between.
  • a layer of insulation slabs 4 are fitted to the inner wall 1 by a number of wall anchors 5.
  • the wall anchors 5 comprise a first mounting end 6 and an outermost second end 7 which is moulded into the mortar between the bricks of the outer wall 2.
  • Each wall anchor 5 is mounted by a fastener 10, e.g. a dowel, which is threaded through a mounting hole 15 and shot into the wall by special tooling equipment (see fig. 4 ).
  • the wall anchors 5 may be mounted for holding the insulation slabs 4 in both a vertical position and a horizontal position.
  • the need for mounting the wall anchor in a vertical position may be at the top of the building, where the top edge of the top row of insulation slabs cannot be supported by this type of wall anchor because of the insulation holding means 12 penetrating into the insulation. Therefore, the wall anchor is placed between the neighbouring slabs in a vertical position. Because the wall anchor part has to be fixed within the horizontal mortar layer between the bricks it has to be twisted in order to be able to do so.
  • the insulation slabs 4 are supported by a row of fibrous insulation bricks 9 arranged along the foot of the inner wall 1.
  • This fibrous insulation brick 9 is preferably made of a fibrous insulation material with a high density.
  • the insulation slabs 4 are fixed to the inner wall 1 by a series of holding members 8 that are fixed through the insulation 4 to the inner wall 1 by fasteners 10, e.g. dowels, whereby the holding members 8 are mounted in the same manner as the wall anchors 5 using the same type of fasteners 10 as used for mounting the wall anchors 5.
  • edge fix means may preferably also be used for fixating the insulation slabs.
  • the wall anchor 5 is formed in a sheet material and includes a first end 6 facing the inner wall 1 and a second end 7 projecting out between the insulation slabs 4. This second end 7 is formed with an outer tip 13.
  • a mounting flange 11 is formed by an upward bended mounting portion 11 which is provided with a mounting hole 15, which is provided in proximity to the bending line.
  • projections 12 for gripping the insulation slabs 4 are formed.
  • the wall anchor 5 is positioned for mounting an insulation slab 4 to the inner wall 1 with the mounting flange 11 against the inner wall 1 and lowered, so the downward pointing projection 12 penetrates into the upper side of the insulation slab 4.
  • the wall anchor 5 is then secured to the inner wall 1 by a mounting tool 16, which is provided with an elongated tube in which the fastener dowel 10 (see fig. 1 ) is placed and forced into the inner wall 1 through the mounting hole 15 on the wall anchor 5 by the mounting tool 16.
  • a preferred embodiment of a wall anchor 5 is shown.
  • the wall anchor 5 is formed from a blank cut out of a sheet of steel material, preferably a steel sheet with a thickness of 1 mm. The blank is bent into the desired shape of the wall anchor 5.
  • a mounting flange 11 is formed by bending a portion to a generally vertical position. In this mounting flange 11 a mounting hole 15 is provided.
  • the mounting flange extends into a bridging base portion 20 of a plate-like shape which rests against the insulation slab below and supports the above insulation slab.
  • the base portion 20 extends into an elongated intermediate portion 14 with two pointed projections 12 on each side thereof, where one projection is pointing downwards and the other upwards.
  • the elongated portion 14 is provided with a first rib 16, which protrude out of the generally planar bridging portion 20 and elongated portion 14.
  • the first rib 16 is followed by a second rib 17 with a bending portion 18 between the two ribs 16, 17, so that the wall anchor 5 may be bent (see fig. 6 ) or twisted (see fig. 7 or 8 ) in this region, which is positioned in a distance from the mounting flange 11 which generally corresponds to the thickness of the insulation slabs.
  • the wall anchor 5 is provided with an outer tip 13, which is provided with V-shaped or C-shaped retention buckles 19 for providing a firm grip when sandwiched in the mortar between two brick layers. It is realised that the shape of the retention buckles 19 also could be provided in other shapes.
  • the insulation slabs used in a cavity wall according to the invention is preferably dual density fibrous insulation slabs. This facilitates the fixing of the insulation slabs.
  • the insulation slabs are provided in standard sizes, e.g. 120x80 cm or 60x80 cm.
  • a wall anchor according to the present invention only one wall anchor above and below each insulation slab is necessary to fix the insulation to the inner wall.
  • the wall anchor 5 is described in relation to a horizontal position.
  • directional terms e.g. vertical, upwards and downwards is merely to be understood as relative terms, as it is realised that the wall anchor may be provided with other general orientations without departing from the scope of the invention.

Landscapes

  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Acoustics & Sound (AREA)
  • Finishing Walls (AREA)
  • Building Environments (AREA)
  • Joining Of Building Structures In Genera (AREA)
  • Dowels (AREA)

Claims (13)

  1. Ancrage de mur (5) pour un mur creux, ledit ancrage de mur ayant une première extrémité (6) pouvant être montée sur un mur interne (1) du mur creux et une deuxième extrémité (7) destinée à être encastrée dans un mortier dans le mur externe (2) du mur creux, moyennant quoi ledit ancrage de mur est adapté pour relier la cavité (3) entre les murs interne et externe, pour fixer des dalles d'isolation (4) sur le mur interne et pour relier le mur externe au mur interne, dans lequel l'ancrage de mur est formé à partir d'un matériau en tôle avec un rebord de montage sensiblement vertical (11) au niveau de sa première extrémité, une pointe externe (13) au niveau de la deuxième extrémité et une partie de liaison entre les deux extrémités, dans lequel la partie de liaison est prévue avec une partie en forme de plaque (20) avec des saillies (12) sur chaque côté d'une partie allongée (14) pour saisir les dalles d'isolation,
    caractérisé en ce que :
    au moins deux nervures longitudinales allongées (16, 17) sont montées dans la partie de liaison, lesdites nervures faisant saillie d'au moins la partie allongée (14) de la partie de liaison en forme de plaque, lesdites nervures sont formées sur une ligne avec une partie pouvant se fléchir et/ou se tordre (18) entre lesdites nervures.
  2. Ancrage de mur selon la revendication 1, dans lequel la pointe externe (13) de l'ancrage de mur est prévue avec des boucles de retenue (19) telles que des nervures orientées généralement de manière transversale, par rapport à l'orientation de la partie allongée.
  3. Ancrage de mur selon la revendication 2, dans lequel les nervures de retenue (19) sur la pointe externe sont généralement en forme de V ou en forme de C.
  4. Ancrage de mur selon l'une quelconque des revendications 1 à 3, dans lequel les nervures sur l'ancrage de mur sont formées sur une ligne centrale de la partie allongée (14) de la partie de liaison.
  5. Ancrage de mur selon l'une quelconque des revendications 1 à 4, dans lequel l'ancrage de mur (5) est formé à partir d'une plaque d'acier ayant une épaisseur de l'ordre de 0,7 à 1,5, encore de préférence 1 mm.
  6. Mur creux dans une structure de bâtiment, ledit mur creux comprenant :
    un mur interne (1) ;
    un mur externe (2) comprenant un mur de briques ;
    une cavité (3) entre les murs interne et externe,
    des dalles d'isolation (4) montées contre le mur interne à l'intérieur de ladite cavité,
    une pluralité d'ancrages de mur (5) ayant chacun une première extrémité (6) montée sur le mur interne et une deuxième extrémité (7) encastrée dans un mortier dans le mur externe, moyennant quoi lesdits ancrages de paroi relient la cavité, pour fixer les dalles d'isolation sur le mur interne et relier le mur externe au mur interne, dans lequel les ancrages de mur sont formés à partir d'un matériau en tôle avec un rebord de montage sensiblement vertical (11) au niveau de sa première extrémité (6), une pointe externe (13) au niveau de la deuxième extrémité (7) et une partie de liaison entre lesdites deux extrémités, dans lequel la partie de liaison est prévue avec une partie en forme de plaque (26) avec des saillies (12) de chaque côté d'une partie allongée (14) pour saisir les dalles d'isolation,
    caractérisé en ce que :
    au moins l'un des ancrages de mur comprend au moins deux nervures longitudinales allongées (16, 17) formées dans la partie de liaison, lesdites nervures faisant saillie d'au moins la partie allongée (14) de la partie de liaison en forme de plaque, lesdites nervures étant formées sur une ligne avec une partie pouvant être fléchie et/ou tordue (18) entre les nervures.
  7. Mur creux selon la revendication 6, dans lequel trois, de préférence deux ou moins ancrages de mur (5) par mètre carré sont prévus, encore de préférence une moyenne de 1,4-2,5 ancrages de paroi par mètre carré.
  8. Mur creux selon la revendication 6 ou 7, dans lequel au moins l'un des ancrages de mur (5) est monté avec une orientation sensiblement horizontale de la partie en forme de plaque (20).
  9. Mur creux selon l'une quelconque des revendications 6 à 8, dans lequel au moins l'un des ancrages de mur (5) est monté avec une orientation sensiblement verticale de la partie en forme de plaque (20).
  10. Mur creux selon l'une quelconque des revendications 6 à 9, dans lequel les ancrages de mur (5) sont montés sur le mur interne (1) par une fixation allongée (10) montée à travers un trou de montage (15) dans les ancrages de mur, qui est positionné de manière centrale à la base du rebord de montage.
  11. Mur creux selon l'une quelconque des revendications 6 à 10, dans lequel les dalles d'isolation (4) sont fixées au niveau de leurs régions périphériques, par exemple les régions inférieure et supérieure, par une série d'éléments de support d'isolation (8), où lesdits éléments de support sont positionnés sur la région de bord d'isolation et fixés sur le mur interne par des fixations allongées qui pénètrent par un trou de montage dans l'élément de support et par la face inférieure de la dalle d'isolation.
  12. Mur creux selon la revendication 11, dans lequel une série de briques isolantes fibreuses (9) ayant une densité relativement élevée est prévue à la base du mur interne (1) pour supporter les dalles d'isolation.
  13. Mur creux selon l'une quelconque des revendications 6 à 12, dans lequel la partie de flexion (18) du au moins un ancrage de mur (5) est prévue à une distance du rebord de montage (11) qui correspond généralement à l'épaisseur de la dalle d'isolation (4).
EP06723788A 2005-04-26 2006-03-20 Ancre de mur et mur creux ayant une telle ancre Not-in-force EP1880063B1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
PL06723788T PL1880063T3 (pl) 2005-04-26 2006-03-20 Kotew ścienna i mur szczelinowy zawierający taką kotew
EP06723788A EP1880063B1 (fr) 2005-04-26 2006-03-20 Ancre de mur et mur creux ayant une telle ancre

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
EP05075991 2005-04-26
PCT/EP2006/002819 WO2006114177A1 (fr) 2005-04-26 2006-03-20 Paroi de cavite et fixation de paroi
EP06723788A EP1880063B1 (fr) 2005-04-26 2006-03-20 Ancre de mur et mur creux ayant une telle ancre

Publications (2)

Publication Number Publication Date
EP1880063A1 EP1880063A1 (fr) 2008-01-23
EP1880063B1 true EP1880063B1 (fr) 2012-04-25

Family

ID=35044618

Family Applications (1)

Application Number Title Priority Date Filing Date
EP06723788A Not-in-force EP1880063B1 (fr) 2005-04-26 2006-03-20 Ancre de mur et mur creux ayant une telle ancre

Country Status (8)

Country Link
EP (1) EP1880063B1 (fr)
AT (1) ATE555257T1 (fr)
DK (1) DK1880063T3 (fr)
EA (1) EA011371B1 (fr)
ES (1) ES2386458T3 (fr)
PL (1) PL1880063T3 (fr)
UA (1) UA89231C2 (fr)
WO (1) WO2006114177A1 (fr)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2987421B1 (fr) * 2012-02-28 2014-12-05 Lr Etanco Atel Patte d'accrochage d'elements d'isolation.
US10876285B1 (en) 2016-06-22 2020-12-29 Rodenhouse, Inc. Masonry veneer wall tie apparatus and method for building construction
US11078663B1 (en) 2018-10-23 2021-08-03 Altenloh, Brinck & Co. Us, Inc. Wall system fastener assembly for building veneers and claddings
US11698095B1 (en) 2019-04-25 2023-07-11 Altenloh, Brinck & Co. Us, Inc. Wall system fastener with seal member
US12313111B1 (en) 2019-04-25 2025-05-27 Altenloh, Brinck & Co. Us, Inc. Wall system fastener with seal member

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2063329B (en) * 1979-11-02 1983-06-29 Catnic Components Ltd Wall-ties
GB2165275B (en) * 1984-10-04 1988-04-07 Press Bat Holdings Ltd Wall tie
DE8802748U1 (de) * 1988-03-02 1988-06-30 Hardo-Befestigungen Helmut Hegmann, 5760 Arnsberg Luftschichtanker mit einem Tragteil für Isolationsmaterial
SE506835C2 (sv) * 1997-01-31 1998-02-16 Lennart Svensson Förankringsanordning samt förfarande vid montering av en sådan
EP1510629A1 (fr) * 2003-08-29 2005-03-02 Rockwool International A/S Dispositif pour la fixation d'un panneau d'isolation dans un mur creux
EP1518971A1 (fr) * 2003-09-26 2005-03-30 Rockwool International A/S Ancrage pour mur creux avec panneau d'isolation

Also Published As

Publication number Publication date
ATE555257T1 (de) 2012-05-15
EA200702308A1 (ru) 2008-04-28
UA89231C2 (uk) 2010-01-11
WO2006114177A1 (fr) 2006-11-02
EA011371B1 (ru) 2009-02-27
PL1880063T3 (pl) 2012-09-28
ES2386458T3 (es) 2012-08-21
EP1880063A1 (fr) 2008-01-23
DK1880063T3 (da) 2012-07-16

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