EP3159460A2 - Élément de liaison de structure de mur de construction comportant une couche d'isolation - Google Patents

Élément de liaison de structure de mur de construction comportant une couche d'isolation Download PDF

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Publication number
EP3159460A2
EP3159460A2 EP16194945.8A EP16194945A EP3159460A2 EP 3159460 A2 EP3159460 A2 EP 3159460A2 EP 16194945 A EP16194945 A EP 16194945A EP 3159460 A2 EP3159460 A2 EP 3159460A2
Authority
EP
European Patent Office
Prior art keywords
wall
insulation
layer
binding
binding element
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.)
Pending
Application number
EP16194945.8A
Other languages
German (de)
English (en)
Other versions
EP3159460A3 (fr
Inventor
Rasmus Midtiby PIIHL
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.)
Arkitektfirmaet Give Huset AS
Original Assignee
Arkitektfirmaet Give Huset 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 Arkitektfirmaet Give Huset AS filed Critical Arkitektfirmaet Give Huset AS
Publication of EP3159460A2 publication Critical patent/EP3159460A2/fr
Publication of EP3159460A3 publication Critical patent/EP3159460A3/fr
Pending legal-status Critical Current

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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
    • E04B1/4185—Masonry wall ties for cavity walls with both wall leaves made of masonry
    • 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 current invention relates to a binding element for a building wall structure comprising an inner wall, an outer wall spaced from said inner wall, and at least one layer of insulation arranged between said inner and outer walls, said binding element comprising an elongated portion with a first portion arranged to be embedded in the inner wall during construction of the inner wall and a second portion arranged to be embedded in the outer wall during construction of the outer wall.
  • the current invention also relates to a building wall structure comprising a binding element as well as a method of constructing a building wall structure using a binding element.
  • walls comprising an inner wall and an outer wall.
  • the inner and/or the outer wall are made of bricks.
  • other forms of walls can also be used.
  • a porous concrete inner wall could be combined with a brick outer wall.
  • a wooden inner wall could be combined with a brick outer wall.
  • some form of insulation is arranged between the inner and the outer wall.
  • Two common forms of insulation are Stone Wool and Glass Wool.
  • Other forms of insulation are also available, but not as widely used at the current time.
  • binding elements which join the inner and outer walls together at spaced apart locations.
  • binders are sometimes called wall ties.
  • the binding elements can be used to hold the insulation in place as well.
  • binding elements used together with insulation are provided in DE29514318U1 , US2014202098AA , WO09120069A1 , GB2404203B2 and GB1503557A .
  • binding elements relate to building wall structures comprising soft insulation types which are very thick and deformable, for example glass wool or stone wool insulation.
  • the insulation is placed in abutment with the outwardly facing surface of the inner wall. This blocks air ventilation of the space between the walls.
  • binding elements which space the insulation from the surfaces of the inner and outer walls.
  • these forms of insulation are not as common.
  • These solutions typically use spacer elements placed in the walls. Said spacer elements are in some cases formed as discs which are mounted on binding elements prior to installing the insulation. See for example NL7406695A .
  • a second aspect of the current invention is to provide a binding element which allows the use of a thin insulation material, in certain cases the thin insulation material could be provided in plate or roll form.
  • a third aspect of the current invention is to provide a binding element which allows the insulation material to be arranged at an offset from the outer surface of the inner wall.
  • the binding element can also be arranged to ensure that the insulation material is offset from the inner surface of the outer wall.
  • a binding element according to the characterizing portion of claim 1.
  • a binding element is provided which allows the construction of a building wall structure in a simple and efficient manner.
  • the stopper element should be understood as an element which ensures that the layer of insulating material is placed at an offset from the outer surface of the inner wall.
  • the stopper element is a physical element which prevents the layer of insulating material from displacing past the stopper element.
  • the stopper element could be arranged as a purely visual element. The visual element provides visual feedback to the construction worker to allow him or her to stop pressing on the insulating layer when it has reached the correct position.
  • the stopper element could be arranged as a colour change, or as a marking, on the elongated portion between the first and second portions.
  • the visual stopper element When the construction worker has pushed the layer of insulation far enough onto the elongated portion of the binding element, the visual stopper element will appear and the construction worker will know that the material has been pushed far enough.
  • the second portion of the binding element could be coloured red and the first portion of the binding element could be coloured green.
  • the layer of insulation material is pressed onto the binding element, only the red portion will be visible. Once the layer of insulation has been pressed to the right position, the green colour will appear and the user will know that the layer of insulation is at the correct position.
  • the binding element could further comprise an offset ensuring element, said offset ensuring element being arranged to align with the outer surface of the inner wall and being arranged at a fixed offset from the stopper element to ensure a uniform offset of the stopper element from the outer surface of the inner wall.
  • the offset ensuring element could be arranged as an element having a portion extending along a direction having a component which is perpendicular to the longitudinal axis of the binding element and being arranged to abut the outer surface of the inner wall.
  • the offset ensuring element could be arranged as a visual element giving the construction worker visual indication of correct placement. This could for example be in the form of a colour change, or a physical marking, for example a colour band.
  • the binding element could further comprise at least one insulation holding element which allows the layer of insulation to slide over the insulation holding element when force is applied to the layer of insulation along the longitudinal direction of the binding element, but which holds the layer of insulation in place on the elongated portion during normal conditions inside the wall structure. In this way, the user can push the layer of insulation into the correct position and then the layer of insulation is held in place without displacing away from the desired position.
  • the insulation holding element could comprise at least one circular plate element arranged on the elongated portion of the binding element between the stopper element and the second portion of the binding element and arranged co-axially with the longitudinal axis of the binding element. Forming the insulation holding element as a circular element ensures that a good seal is formed between the insulation holding element and the layer of insulation when the layer of insulation is in contact with the circular plate element.
  • the insulation holding element is provided as a linear array of circular plate elements arranged coaxially with each other and with the longitudinal axis of the binding element. In one embodiment, the spacing between adjacent circular plate elements is less than the thickness of the layer of insulation material. In this way, when the layer of insulation is pressed onto the circular plate elements, the layer of insulation can be in contact with at least two circular plate elements at the same time.
  • the binding element could further comprise a drip provoking element arranged spaced a distance from the stopper element, said distance being towards the outer wall and being at least the width of the layer of insulation used.
  • the drip provoking element could be arranged as a protrusion sticking out of the bottom of the elongated portion of the binding element.
  • the binding element could comprise a plastic material or a material having a thermal conductivity which is less than stainless steel or a material having a thermal conductivity which is less than 1 W/(mK).
  • at least the first portion, at least the second portion and/or at least the middle portion are made of plastic material or a material having a thermal conductivity coefficient which is less than stainless steel or a material having a thermal conductivity which is less than 1 W/(mK).
  • the first portion is made of a metal material and the second portion is made of a material having a thermal conductivity which is less than 1 W/(mK).
  • the first portion is arranged as a planar element having a width which is greater than the average width of the elongated portion and in that said second portion is also arranged as a planar element having a width which is greater than the average width of the elongated portion.
  • the first and second portions can be embedded in the materials of the inner and outer walls.
  • the width of the first portion is greater than the width of the second portion.
  • the stopper element could have a dimension along a vector component which is perpendicular to the longitudinal extension of the binding element which is at least 2 times, at least 3 times or at least 4 times a dimension of the second portion of the binding element along a vector component which is perpendicular to the longitudinal extension of the binding element. In this way, the second portion can pierce through the layer of insulation and then be stopped by the stopper element.
  • the invention in another aspect of the invention, relates to a building wall structure according to claim 11.
  • This wall structure is quick to assemble and provides a good insulating effect.
  • the layer of insulation can be prevented from being displaced outwardly by one or more insulation holding elements integrated into the binding elements.
  • an integrated drip provoking element could be arranged on the lower surface of the binding elements and could be located just outside the outer surface of the layer of insulation. In this way, condense fluid and/or other fluid which is collected on the second portion of the binding element, will not run through the layer of insulation along the body of the binding element.
  • the layer of insulation could be a layer of reflective insulation having a thickness less than 100mm, less then 75mm, less than 50mm, less than 35mm or less than 20mm.
  • Using a reflective type insulation can in certain cases reduce the need for having a very thick insulation material and therefore result in a reduction of the total width of the wall structure.
  • a method of constructing a building wall structure is provided according to claim 15. According to this method, a wall structure can be assembled in an easy and effective manner.
  • the binding element comprises a stopper element. However this should be interpreted as "at least one stopper element”.
  • Figure 1 shows a first embodiment of a binding element 1, or wall tie, according to the current invention.
  • the wall tie 1 of the current embodiment is made as an elongated element having a first portion 2 arranged at a first end 3 and a second portion 4 arranged at a second end 5.
  • the first portion 2 has an L formed shape.
  • the second portion 4 has a wavy, or S formed shape.
  • This is a traditional shape of a binding element as known from, for example, DE29514318 (U1).
  • Traditionally such wall ties are formed from a piece of steel rod which is bent into shape, hence the L shaped form at one end and the wavy form at the other end.
  • first and second portions of this type of wall tie have a shape which can be embedded in wet cement/mortar placed between bricks during the brick laying process. Once the cement has hardened, the first and second portions of the binding element will be firmly embedded in the cement without being able to be withdrawn. In typical cases, the first portion will be embedded in an inner wall and the second portion will be embedded in an outer wall. The wall tie will therefore hold the inner and outer walls together.
  • the wall tie has a large circular disc 10 arranged co-axially with the longitudinal axis of the wall tie.
  • the large circular disc has a radial direction which is perpendicular to the longitudinal axis of the wall tie.
  • the wall tie also comprises a linear array of spaced smaller circular discs 12.
  • the large circular disc 10 is at least 2 times larger in diameter than the spaced smaller circular discs 12. The function of the circular discs 10,12 is described in greater detail later on in this specification.
  • the wall tie 1 is made of a plastic material which has been injection moulded. This has a number of advantages. By making the wall tie from a plastic material, the thermal conduction through the wall tie is reduced and less heat is transferred between the inner and outer walls when compared to a wall tie made of steel or stainless steel. Another advantage is that the wall tie 1 made via an injection moulding operation can be formed into many different shapes and forms when compared to an embodiment made from a steel rod which can for the most part only be bent. For example in the current case, the shape of the first portion is L shaped and the second portion is wavy shaped. However, the shapes could be much different when injection moulding the wall tie from plastic. For example, the first portion could be formed as an open oval shape or an open triangle shape or any other desired shape.
  • the material of the binding element/wall tie of the current invention could be chosen from any suitable material, a plastic injection moulded material being just one choice out of many.
  • a plastic material is used, different additives could be added to the plastic material, for example reinforcing fibers of different kinds.
  • the person skilled in the art will be able to provide different suitable materials, some non-limiting examples being metal, plastic and glass fiber.
  • the current embodiment is made in an injection moulding operation, however other forms of manufacturing could also be suitable.
  • Figure 3 shows a schematic view of a complete wall structure 20 while figures 4 and 5 show two steps in the construction of the wall structure 20.
  • the inner wall 21 of the embodiment shown in figures 3 to 5 is constructed first by laying bricks 22 as is known the art. At regular intervals along the rows and at regular intervals along the vertical direction of the wall, the first portion 2 of wall ties 1 according to the current invention are arranged in the mortar 23 between two layers of bricks such that the second portion extends from the inner wall. This is shown in figure 4 .
  • the wall tie in figure 3 is shown rotated 90 degrees about the longitudinal axis of the wall tie in figure 1 .
  • a layer of insulating material 25 is then taken and pressed against the second end 5 of the second portion 4 of the wall tie 1.
  • the second end 5 of the second portion 4 of the wall tie 1 is formed such that the second end can pierce through the insulating material 25.
  • a hole is therefore formed in the insulating material and the insulating material can then be pressed onto the wall tie and pressed in towards the inner wall. This is shown in figure 5 .
  • the smaller circular discs are formed such that they allow passage of the insulating material in one direction when force is applied, but then "hold" the layer of insulation in place once it has been pressed over the discs.
  • the insulating material When the insulating material has been pressed far enough over the discs, the insulating material will come into contact with the larger circular disc 10 which prevents further motion along the wall tie.
  • the combination of the larger circular disc 10 and the array of spaced apart smaller circular discs will ensure that the insulation material stays in place during normal conditions in the wall structure.
  • the location of the larger circular disc will ensure that the insulating material is arranged at a predetermined offset from the inner wall 21. Likewise, the larger circular disc will provide a sealing effect between the insulating material and the wall tie to prevent air from freely passing through the insulating material. Likewise, the smaller circular discs 12 will prevent the insulating material from displacing away from the larger circular disc.
  • the small circular disc are arranged co-axially with the wall tie and have a slight cone shape with the wide end of the cone facing the circular disc.
  • the insulating material will be able to slide more easily over the cone in one direction, but be held in place in the reverse direction.
  • the insulating material should be sealed better to the wall tie since the circular elements will form a circular hole in the insulating material and be in contact with the edges of the hole the entire circumference of the hole.
  • prongs or "barbs” can be arranged on the wall tie to hold the insulation material in place.
  • the smaller circular discs or for example prongs/barbs form a holding element which holds the insulation material in place on the wall tie.
  • the circular discs are formed such that when the insulating material is pressed against the larger circular disc, the outermost disc of the smaller circular discs will be free from the insulating material on the outer side of the insulation material.
  • the outermost disc 13 has a portion which is arranged below the elongated portion of the wall tie. In this way, when liquid, for example condense fluid, runs along the wall tie from the outside wall towards the inside wall, it will reach the outermost disc and form a drop, and drip off the wall tie, prior to reaching the insulating material. In this way, liquid is prevented from running along the wall tie and through the insulating material.
  • Figure 3 shows a final constructed wall structure 20 where the second portion 4 of the wall tie 1 has been embedded in the mortar 23 between two layers of bricks 22 in the outer wall 26.
  • the larger circular disc can be thought of as a form of stopper element which prevents the insulating material from displacing further along the wall tie during installation.
  • the stopper element is arranged to ensure that there is a correct offset between the inner surface of the insulation material and the outer surface of the inner wall.
  • the stopper element also ensures that a correct offset is provided between the inner surface of the outer wall and the outer surface of the insulation layer. Such offsets are important to ensure that proper ventilation can occur between the insulation material and the inner and outer walls.
  • an offset indicating element 31 could be placed on the first portion of the wall tie.
  • This offset indicating element could be in the form of a physical element which is arranged to be placed against the outer surface of the inner wall during placement of the wall tie.
  • a plate shaped element 31 could be arranged offset from the circular disc 10 towards the first portion 2 of the wall tie 1.
  • the first portion 2 of the wall tie could be embedded in the mortar between two bricks and the plate shaped element 31 be placed such that it is in contact with the outer surface of the inner wall.
  • the first circular element i.e. the stopper element will be arranged at a precise distance from the outer surface of the inner wall. This will ensure that the worker constructing the brick wall can relax during construction without having to manually keep track of the offset of the stopper element.
  • the first portion 41 of the wall tie could be formed of a different material than the rest of the wall tie.
  • the first portion 41 of the wall tie could be made of a stainless steel material and the rest of the wall tie could be made from a plastic material.
  • the two materials could be coupled together via a twist lock mechanism 42 or other form of locking mechanism.
  • the two materials could be joined together as an integrated element, for example where the metal portion is inserted into the injection mould prior to moulding and the plastic material is injected to surround the metal portion in a locked manner.
  • the use of a metal material, or other form of strong material allows the first portion to be pressed into the material of the inner wall if the inner wall is made from a suitable material. For example, this could be done via a hammer which hammers the leg portion 43 of the first portion into the inner wall. This could be relevant for example in the case where the inner wall is made of wooden beams or from porous cement elements.
  • the wall tie from two different materials is that the transition from one material to the other will be visible during construction of the inner wall and could be used as the offset indicating element to ensure correct offset of the stopper element 10 from the inner wall.
  • the offset indicating element could be arranged as a change in color, or as a specific marking on the wall tie, for example as a coloured band on the wall tie (not shown).
  • the first portion is formed as a threaded portion 51.
  • the threaded portion is connected to the rest of the wall tie via a twist lock connection 52 in the current embodiment. This allows the screw portion to be screwed (or nailed) into the outer surface of the inner wall first, and then the rest 53 of the wall tie can be connected to the screw portion which has been inserted into the wall.
  • the wall tie is essentially the same as the wall tie of figure 7 , however, instead of a wavy second portion 4, the second portion is injection moulded as a series of plate like triangular shapes 61.
  • the first and second portions can be formed in any suitable shape which can be embedded in the inner and outer walls respectively.
  • the second portion needs to be formed such that the insulation material can be pressed over the end of the second portion without causing too much damage to the insulation material.
  • the person skilled in the art will be able to provide additional suitable shapes.
  • the stopper element has been arranged as a circular plate formed element.
  • the stopper element could be formed in many different suitable ways.
  • the stopper element could be arranged as a cone shaped element which increases in diameter from the second end of the wall tie towards the first end. In this way, the insulating material will be pressed up against the pointy side of the cone and then seal tightly against the insulating material.
  • the stopper element could be arranged as a rod extending perpendicularly to the longitudinal direction of the wall tie itself. This embodiment will not have the same sealing abilities as a circular element or a cone shaped element, owever the sealing effect could be provided by the holding element as described above for example.
  • an adhesive material could be provided on the wall tie on the outer side of the stopper element.
  • the insulating material could then be pressed up against the stopper element causing the adhesive material to glue the insulating material to the wall tie.
  • Using enough adhesive material could also cause the hole in the insulating material to be filled up with adhesive material, thereby also sealing the hole effectively.
  • the novel and inventive wall tie of the current invention combines the functions of a traditional wall tie (i.e. providing a connection between the inner and outer walls) with a holding function and an offset ensuring function for insulation material placed in the cavity between the inner and outer walls.
  • the wall tie also provides a sealing function to seal the holes formed in the insulation material during assembly.
  • a form of insulating material is used which is provided in strip or plate form.
  • the strips When provided in strip form, the strips could flexible and could be provided on a roll of many meters.
  • the insulating material is of the reflecting type.
  • the insulating material could be made of aluminum sheets which reflect heat waves rather than absorbing them. This type of insulation can be made much thinner than insulating materials based on mineral wool.
  • the insulating material could be made of aluminum sheets which reflect heat waves rather than absorbing them. This type of insulation can be made much thinner than insulating materials based on mineral wool.

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  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Acoustics & Sound (AREA)
  • Building Environments (AREA)
EP16194945.8A 2015-10-20 2016-10-20 Élément de liaison de structure de mur de construction comportant une couche d'isolation Pending EP3159460A3 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DKPA201500649 2015-10-20

Publications (2)

Publication Number Publication Date
EP3159460A2 true EP3159460A2 (fr) 2017-04-26
EP3159460A3 EP3159460A3 (fr) 2017-05-10

Family

ID=57184344

Family Applications (1)

Application Number Title Priority Date Filing Date
EP16194945.8A Pending EP3159460A3 (fr) 2015-10-20 2016-10-20 Élément de liaison de structure de mur de construction comportant une couche d'isolation

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EP (1) EP3159460A3 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE1025693B1 (fr) * 2017-11-09 2019-06-11 Filippo Tudisco Système d'ancrage universel des maçonneries

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL7406695A (en) * 1974-05-17 1975-11-19 Bodegraven B V Dorpsstraat 191 Cavity wall anchor bolt - has attached disc to secure insulating material in place
DE3136877A1 (de) * 1981-09-17 1983-03-31 Upat Gmbh & Co, 7830 Emmendingen Verfahren zum setzen von halte- und ankermittel fuer verblendmauerwerk und daemmplatten sowie ankermittel zur durchfuehrung des verfahrens
DK162316C (da) * 1988-09-07 1994-12-27 Tonex V Bjarne Andersen Fa Murbinder og værktøj
DE4003685A1 (de) * 1990-02-07 1991-08-08 Schneider Ernst Ulrich Vorrichtung zum einklemmen von daemmstoff an einer mauer
NL1010021C2 (nl) * 1998-09-07 2000-03-09 Lajos Szunomar Klemplaat.
GB2404203B (en) * 2003-07-22 2007-08-22 Ronald James Lucas Insulation for use in cavity walls
EP2562318A1 (fr) * 2011-08-23 2013-02-27 NV Bekaert SA Élément de liaison pour structure de mur de bâtiment

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
None *

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE1025693B1 (fr) * 2017-11-09 2019-06-11 Filippo Tudisco Système d'ancrage universel des maçonneries

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