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EP2773821B1 - Cadre pour paroi sèche et paroi sèche ayant des propriétés acoustiques améliorées - Google Patents

Cadre pour paroi sèche et paroi sèche ayant des propriétés acoustiques améliorées Download PDF

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Publication number
EP2773821B1
EP2773821B1 EP11778620.2A EP11778620A EP2773821B1 EP 2773821 B1 EP2773821 B1 EP 2773821B1 EP 11778620 A EP11778620 A EP 11778620A EP 2773821 B1 EP2773821 B1 EP 2773821B1
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EP
European Patent Office
Prior art keywords
drywall
frame
openings
slots
studs
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.)
Active
Application number
EP11778620.2A
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German (de)
English (en)
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EP2773821A1 (fr
Inventor
Cyrille Demanet
Hye-Mi Lee
Gaël MAILLE
Yong-Sam Park
Julien SOULHAT
Emmanuel Vial
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.)
Etex France Building Performance SA
Original Assignee
Siniat SA
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Filing date
Publication date
Application filed by Siniat SA filed Critical Siniat SA
Publication of EP2773821A1 publication Critical patent/EP2773821A1/fr
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Publication of EP2773821B1 publication Critical patent/EP2773821B1/fr
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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
    • E04B2/00—Walls, e.g. partitions, for buildings; Wall construction with regard to insulation; Connections specially adapted to walls
    • E04B2/74—Removable non-load-bearing partitions; Partitions with a free upper edge
    • E04B2/7407—Removable non-load-bearing partitions; Partitions with a free upper edge assembled using frames with infill panels or coverings only; made-up of panels and a support structure incorporating posts
    • E04B2/7409—Removable non-load-bearing partitions; Partitions with a free upper edge assembled using frames with infill panels or coverings only; made-up of panels and a support structure incorporating posts special measures for sound or thermal insulation, including fire protection
    • E04B2/7412—Posts or frame members specially adapted for reduced sound or heat transmission

Definitions

  • the invention relates to a drywall having improved acoustic properties and to the use of a U-channel (or runner or track) for improving the acoustic properties of a drywall.
  • a common building technique for the fabrication of building walls, and in particular internal walls, is to fasten sheets or boards of walling material, such as plasterboard, to vertical studs.
  • walling material such as plasterboard
  • each stud is secured to a horizontal beam or channel or runner secured to either the floor or ceiling of the room or both in which the interior drywall is being constructed.
  • This wall construction technique is both relatively simple and inexpensive and further allows existing room spaces to be subdivided if required, for example when altering the use of an existing building.
  • This wall construction technique also allows separation walls (typically with twin frame/double frame dwelling partition) and distribution walls (typically single frame) to be erected. Staggered structures are also commonplace, with single runner (or U-channel) or with twin angles.
  • Twin frame walls have rather good insulating properties, but require space and are costly to build.
  • this kind of "double stud" construction usually requires some form of brace to be fastened between parallel studs spanning the air gap to give the structure adequate strength. Furthermore, by using a double row of studs for a single wall, the cost of materials used, and time required to install two rows of tracks, is significantly increased over the costs that would be incurred if a single stud construction could be used.
  • WO-A-9623945 provides a single frame wall; comprising a metal frame comprising a plurality of studs which are positioned in U-shaped tracks.
  • the frame is adapted to facilitate installation thereof, but is not adapted to have improved acoustic properties.
  • Single frame drywalls hence require adaptation to have improved acoustic properties.
  • Insulating material such as rock wool or glass wool is inserted in the air gap between the boards.
  • the studs have also been modified to improve the acoustic properties.
  • WO-A-03/102322 provides a wall stud comprising two opposing sidewalls interconnected by a spanning web, the spanning web comprising first and second substantially planar members connected to the respective sidewalls and a member interconnecting the first and second planar members, the latter member having at least one row of elongate slots formed therein along a longitudinal axis thereof, said member interconnecting the first and second planar members being preferably substantially semicircular.
  • US-A-6381916 (or EP-A-1074671 ) provides a section for building walls comprising
  • Such “low-cost” channels comprise, like the studs, two opposing longitudinal sidewalls interconnected by a planar section bridge or web, where said planar section bridge or web is formed, at least in part, with expanded metal (or deployed metal). The amount of metal used is thus less than with standard channels, allowing cost reduction.
  • WO-A-0155525 provides a metal stud for supporting wallboard, wherein curved slots are formed and arranged in a specific manner in order to increase the heat and sound insulting capacity of the stud.
  • the slots have a maximum width of 3mm.
  • the invention provides a drywall frame comprising a plurality of acoustic studs (7) and at least one U-channel, said U-channel comprising two opposing longitudinal sidewalls (2, 3) interconnected by a planar web (4), where said planar web comprises openings (5a, 5b, 5c, 5d, 5e, 5f); characterized in that:
  • the openings are placed in the central part of said planar web, or in which the openings are placed at distal parts of said planar web, or in which the openings are placed at the edges formed by the planar web and the sidewalls.
  • the openings are slots.
  • the slots can be arranged in rows.
  • the slots can be arranged in one row located in the median part of the web.
  • the slots can be arranged in two or more rows located in the median part of the web, at distal parts of said planar web or at the edges formed by the planar web and the sidewalls.
  • the slots can have the following dimensions: length from 200mm to 480mm; separation between the slots from 20mm to 150mm, preferably from 20mm to 50mm; width from 5mm to 100mm, preferably from 5mm to 80mm.
  • the openings are in the form of a grid.
  • the grid can extend from 10 to 80%, preferably from 30 to 60%, of the width of the planar web.
  • the openings are C, U or V shaped or generally chevron-like shapes and are intertwined in each other.
  • the openings can have the following dimensions: length of the chevron-like form from 50mm to 300mm; width of the chevron-like form from 5 mm to 30mm; width of the see-through part of the openings from 0.5mm to 30mm, preferably from 1 mm to 20mm.
  • the openings have all the same shape.
  • the openings are obtained by laser techniques, mechanical techniques with or without metal removal including punching, piercing, stamping, expanding and deploying.
  • the drywall frame can be a single frame.
  • the invention also provides a drywall comprising the drywall frame of the invention together with a plurality of boards, preferably plasterboards, affixed onto said studs on each side thereof and preferably onto said U-channels.
  • the drywall further comprises a filler material placed between the boards.
  • the invention also provides the use of a combination comprising a plurality of acoustic studs (7) and a U-channel according to the invention for providing a metallic structure improving the acoustic properties of drywalls.
  • the drywall is a single frame, a staggered frame or a double frame.
  • the present invention allows improving the sound absorbing properties of a drywall.
  • the channels are affixed in the floor or ceiling of the room, it was believed, until the invention, that they will not serve in the sound transmission through the drywall.
  • the inventors have found that the U-channel does participate to the acoustic properties, and in an even more surprising manner that the technical solutions known for studs cannot be applied to the U-channels. Indeed, studs with merely openings or slots in the central planar web do not exhibit any improvement in the acoustic properties while the very same type of openings or slots does provide an improvement when applied to U-channels.
  • the invention is based, at least partly, on this surprising finding.
  • the metallic frame of the invention comprises at least one U-channel, and a plurality of studs, said studs being introduced into said channels, where the channels longitudinal sidewalls will maintain said studs in place. This is conventional in the art and the methods for erecting drywalls are not changed with the invention.
  • the invention is based on the use of a specific U-channel (or runner or track), used in combination with acoustic studs, so as to provide a metallic structure where all elements are designed to improve the acoustic properties of the final drywall.
  • the U-channel (1) of the invention comprises two opposing longitudinal sidewalls (2, 3) interconnected by a planar web (4), where said planar web comprises openings (5a, 5b, etc).
  • the sidewalls (2, 3) are substantially parallel to one another and/or substantially equal in width.
  • Preferred dimensions for the U-channel are the following: 48, 50, 62, 70, 75, 90, 100, 146, 150 and 200.
  • the planar web 4 may be from 36mm to 200mm, preferably from 48mm to 150mm, in width.
  • the width of the sidewalls (2, 3) may be from 25mm to 50mm, preferably from 25mm to 35mm.
  • the thickness of the metal foil used to manufacture the U-channel is adapted, and is generally 0.5 or 0.6mm, but other thicknesses can be used if needed.
  • the metal is standard and does not need any adaptation.
  • the openings can be placed in the central portion of the planar web, as is represented in figure 1 .
  • the openings may be located at more than one location in the web.
  • the openings can have various shapes.
  • One preferred shape is a slot, with an elongated shape.
  • the openings generally comprise a plurality of slots, arranged in a row or a plurality of rows, typically 2 or 3 adjacent rows. In the event more than one row of slots is present, the slots can be placed in correspondence, or be offset one with respect to the other. The offset may be symmetrical or not.
  • Figure 3a represents the embodiment shown in figure 1 , viewed from the above, for the web part 4 only.
  • Figure 3b is a variant, with slots of substantially greater surface.
  • Figure 3c represents an embodiment where the slots (5a, 5b, 5c, 5d, 5e) are arranged in two adjacent rows (6a, 6b), the slots being offset.
  • first and second rows of slots are provided, with the second row of slots being displaced along the length of the planar web 4 by approximately half the length of a slot with respect to the first row of slots.
  • the two rows of slots are equally spaced apart the median line of the planar web 4.
  • Figure 3d represents an embodiment where the slots (5a, 5b, 5c, 5d, 5e, 5f) are arranged in two adjacent rows (6a, 6b), the slots being aligned from one row to another.
  • the length of the slots is from 80mm to 500mm, preferably from 200mm to 480mm.
  • the separation between the slots along the direction of one given row may be from 20mm to 150mm, preferably from 20mm to 50mm.
  • the length to separation ratio of the slots can be approximately 4:1 to 25:1, preferably 5:1 to 15:1).
  • the width of the slots is from 5mm to 100mm, preferably from 5mm to 80mm.
  • the distance between their respective adjacent axis is calculated so as to have enough material to maintain mechanical strength. Typically this distance between adjacent axis is such that the distance between two slots from two different parallel adjacent rows may be from 10mm to 150mm, preferably from 10mm to 80mm.
  • a row of diagonal slots can also be used, preferably in the median part of the planar web.
  • the slots then would extend across part or whole of the width of the planar web.
  • the openings may also have other designs such as C or U or V shapes, generally speaking chevron-like shapes, where the C or U or V openings or chevrons-like are intertwined in each other, the respective apex are opposite one to the other. More than one of such chevron-like openings may be present in a row, as is represented in figure 4d . Alternatively the rows can be repeated at different locations on the web of the U-channel. With this geometry, the sound track is longer than for a direct connection. Sound attenuation is thus improved with this geometry.
  • the length of the C/U/V (chevron-like) openings is from 10mm to 400mm, preferably from 50mm to 300mm.
  • the width of the C/U/V (chevron-like) form is from 5mm to 40mm, preferably from 5 mm to 30mm.
  • the width of the openings i.e. the part that is see-through
  • Two or more chevron-like openings may be used for the repetition of the pattern. Otherwise the dimensions provided above would equally apply.
  • the distance between adjacent axis of rows of intertwined chevron-like openings is such that the distance between two slots from two different parallel adjacent rows may be from 10mm to 150mm, preferably from 10mm to 80mm.
  • the openings can also be in the form of a grid, notably obtained by metal expansion or deployment.
  • the grid may extend over a part of the planar web, or over substantially the entire width of the web.
  • the grid may thus extend from 10 to 80%, preferably from 30 to 60% of the width of the planar web.
  • Holes e.g. formed by mechanical processes, are also possible.
  • the metal that may remain after formation of the openings will preferably remain in the inner volume of the U-channel; a flat and smooth surface may thus remain available on the outer of the U-channel.
  • Openings are preferably all of the same shape, with the same length and width.
  • Laser cutting is one technique, which can be used on-line.
  • Other techniques using mechanical tools can be used, as is known in the art.
  • Punching, piercing, stamping and any other known methods can be used.
  • Metal expansion or deployment is also a possible method.
  • Existing U-channels or tracks formed using the latter technique are already known.
  • Openings can be formed with or without metal removal.
  • the metal that is taken out of the piece to form the openings remain preferably on one side of the metal sheet.
  • Openings, e.g. slots can be stamped through and have slot edges set upright toward one side. Said upright slot edges preferably protrude into an interior portion of said upright section.
  • U-channels that can be used in the invention are the MAXI-TEC® products or those manufactured by Dallan (expanded metal, optionally folded).
  • the web of the U-channel could be totally flat or with large groove. Both embodiments are known in the field of channels. When simply placed on the wall, the planar web will show a gap, with the substrate, of about 0.5 to 2mm, for example. This may be useful during manufacture of the channel. The embodiment with large groove can also be useful during use, since the sidewalls will, as a consequence of the planar web being forced towards the floor or ceiling, bend towards the interior of the channel and provide improved grasping of the studs.
  • the acoustic studs used in the invention for manufacture of the frame are those studs which are known to improve the acoustic properties of a drywall.
  • a stud will be defined as acoustic if, when used in a standard drywall instead of a standard stud with the same metal thickness, provides a gain of at least 2dB for the sound transmission across the wall.
  • Examples of acoustic studs are those subject of WO-A-03/102322 and EP-A-1074671 . Sound performances are measured using the standards defined in the examples section.
  • Acoustic studs comprise two opposing longitudinal sidewalls interconnected by a section bridge, said bridge having elastic properties.
  • the section bridge comprises first and second substantially planar members connected to the respective sidewalls and a member interconnecting the first and second planar members, the latter member providing the resilience. Resilience is improved in studs by the use of perforations, typically slots arranged along the longitudinal direction of the stud.
  • the invention can be used for double-frame walls or staggered walls, it is preferably to use the invention for single-frame walls.
  • the metallic frame is used with standard wallboards such as plasterboards.
  • the walls are erected according to the known standards.
  • Figure 4 represents a single frame erected, with plasterboards being mounted on it.
  • the U-channels also known as runners or tracks or beams ) are secured (typically with screws or glue) to the floor and ceiling of the room.
  • Acoustical studs 7 are inserted into the U-channels.
  • Plasterboards 8 are then fixed onto the studs in a standard manner (e.g. with screws).
  • Plasterboards are also preferably fixed onto the U-channels in a standard manner (e.g. with screws).
  • An insulating material such as mineral wool, rock wool, glass wool, spun bonded polyester wool foamed plastics, foamed polymers, or any filler material known to improve acoustic properties, can be used to fill in the gap inside the drywall. This is conventional in the art.
  • the invention further relates to the use of a plurality of acoustic studs (7) in combination with the U-channel for providing a metallic structure for improving the acoustic properties of the drywalls. This improvement is reached in single-frame drywalls, but also in staggered frame or even in double-frame drywalls.
  • the present invention allows replacing the corners/angles typically used and yet obtain improved acoustic properties.
  • the U-channels of the invention also provide ease of handling, notably compared to corners/angles, especially on the site of use. They are also easier to align, compared again to angles/corners. U-channels of the invention are otherwise handled in a way similar to standard U-channels. Acoustic improvements are not obtained to the detriment of the handling or the mechanical strength (once installed).
  • the sound performances are measured according to standards, BS En ISO 140-3 Acoustic -Measurement of sound insulation in buildings and of building elements- Part 3 Laboratory measurement of airborne sound insulation of building elements and BS EN ISO 717_1 Rating of sound insulation in buildings and of building elements- Part 1 Airborne sound insulation.
  • the acoustic performances Rw+C are measured for a double-frame drywall with standard 62 studs. Width of the channel and the studs are 62 mm. Are tested angles/corners, standard U-channels ("std channel”), a U-channel according to the embodiment of figure 3b ("U-channel 1") and a U-channel according to the embodiment of figure 4e and ("U-channel 2").
  • U-channel 1 comprises slots of a length of 230mm, a width of 45mm and separations between two slots of 50mm.
  • U-channels 2 comprises chevron-like openings, with a length for the central part of 200mm, flanked with inclined parts, these parts forming an angle of 45° with the axis of the slot and being 20mm long each (thus forming a width of about 14.14mm).
  • Two parallel chevron-like openings are offset one with respect to the other by 20mm. The see-through is about 1 mm.

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  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Thermal Sciences (AREA)
  • Electromagnetism (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Building Environments (AREA)

Claims (16)

  1. Cadre pour paroi sèche comprenant une pluralité de montants (7); et au moins un canal en U (1), ledit canal en U comprenant deux parois latérales longitudinales opposées (2, 3) interconnectées par une âme plane (4), dans lequel ladite âme plane comporte des ouvertures (5a, 5b, 5c, 5d, 5e, 5f); caractérisé en ce que:
    - lesdites ouverture:
    sont des fentes présentant une largeur comprise entre 5 mm et 100 mm et une longueur comprise entre 80 mm et 500 mm, ou
    présentent une configuration en C, en U ou en V essentiellement en forme de chevron et sont entrelacées les unes dans les autres, présentant une longueur comprise entre 10 mm et 400 mm et une largeur comprise entre 5 mm et 40 mm, ou
    ont la forme d'une grille; et
    - ladite pluralité de montants (7) est une pluralité de montants acoustiques comprenant deux parois latérales longitudinales opposées interconnectées par un pont de section présentant des propriétés élastiques, ledit pont de section comprenant un premier et un second éléments sensiblement plans connectés aux parois latérales respectives et un élément qui interconnecte lesdits premier et second éléments plans, ledit élément d'interconnexion comportant des fentes agencées le long de la direction longitudinale du montant.
  2. Cadre pour paroi sèche selon la revendication 1, dans lequel les ouvertures (5a, 5b, 5c, 5d, 5e, 5f) sont placées dans la partie centrale de ladite âme plane (4), ou dans lequel les ouvertures sont placées à des parties distales de ladite âme plane (4), ou dans lequel les ouvertures sont placées aux bords formés par l'âme plane (4) et les parois latérales (2, 3).
  3. Cadre pour paroi sèche selon la revendication 1 ou 2, dans lequel les ouvertures (5a, 5b, 5c, 5d, 5e, 5f) sont des fentes.
  4. Cadre pour paroi sèche selon la revendication 3, dans lequel les fentes sont agencées en rangées.
  5. Cadre pour paroi sèche selon la revendication 3, dans lequel les fentes sont agencées en une rangée située dans la partie médiane de l'âme.
  6. Cadre pour paroi sèche selon la revendication 4, dans lequel les fentes sont agencées en deux ou plus de deux rangées situées dans la partie médiane de l'âme, à des parties distales de ladite âme plane ou aux bords formés par l'âme plane et les parois latérales.
  7. Cadre pour paroi sèche selon l'une quelconque des revendications 3 à 6, dans lequel les fentes présentent une longueur comprise entre 200 mm et 480 mm, et une séparation entre les fentes comprise entre 20 mm et 150 mm, de préférence entre 20 mm et 50 mm.
  8. Cadre pour paroi sèche selon la revendication 1 ou 2, dans lequel les ouvertures se présentent sous la forme d'une grille.
  9. Cadre pour paroi sèche selon la revendication 8, dans lequel la grille s'étend sur 10 % à 80 %, de préférence sur 30 % à 60 % de la largeur de l'âme plane.
  10. Cadre pour paroi sèche selon l'une quelconque des revendications 1 à 9, dans lequel les ouvertures ont toutes la même forme.
  11. Cadre pour paroi sèche selon l'une quelconque des revendications 1 à 10, dans lequel les ouvertures sont obtenues par des techniques au laser, des techniques mécaniques avec ou sans enlèvement de métal, comprenant le poinçonnage, le perçage, l'estampage, le mandrinage et le déploiement.
  12. Cadre pour paroi sèche selon l'une quelconque des revendications 1 à 11, qui est un cadre unique.
  13. Paroi sèche comprenant le cadre pour paroi sèche selon l'une quelconque des revendications 1 à 12 de concert avec une pluralité de panneaux (8), de préférence des plaques de plâtre, fixées sur lesdits montants (7) de chaque côté de ceux-ci et de préférence sur lesdits canaux en U.
  14. Paroi sèche selon la revendication 13, comprenant en outre un matériau de remplissage qui est placé entre les panneaux.
  15. Utilisation d'une pluralité de montants acoustiques (7) en combinaison avec un canal en U pour former une structure métallique visant à améliorer les propriétés acoustiques de parois sèches, ledit canal en U comprenant deux parois latérales longitudinales opposées (2, 3) interconnectées par une âme plane (4), dans laquelle ladite âme plane comporte des ouvertures (5a, 5b, 5c, 5d, 5e, 5f), lesdites ouverture:
    étant des fentes présentant une largeur comprise entre 5 mm et 100 mm et une longueur comprise entre 80 mm et 500 mm, ou
    présentant une configuration en C, en U ou en V essentiellement en forme de chevron et étant entrelacées les unes dans les autres, présentant une longueur comprise entre 10 mm et 400 mm et une largeur comprise entre 5 mm et 40 mm, ou
    ayant la forme d'une grille; et
    dans lequel ladite pluralité de montants acoustiques (7) comprend deux parois latérales longitudinales opposées interconnectées par un pont de section présentant des propriétés élastiques, ledit pont de section comprenant un premier et un second éléments sensiblement plans connectés aux parois latérales respectives et un élément qui interconnecte lesdits premier et second éléments plans, ledit élément d'interconnexion comportant des fentes agencées le long de la direction longitudinale du montant.
  16. Utilisation selon la revendication 15, dans lequel la paroi latérale est un seul cadre, un cadre échelonné ou un double cadre.
EP11778620.2A 2011-11-03 2011-11-03 Cadre pour paroi sèche et paroi sèche ayant des propriétés acoustiques améliorées Active EP2773821B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/EP2011/069376 WO2013064191A1 (fr) 2011-11-03 2011-11-03 Paroi sèche ayant des propriétés acoustiques améliorées et canal pour celle-ci

Publications (2)

Publication Number Publication Date
EP2773821A1 EP2773821A1 (fr) 2014-09-10
EP2773821B1 true EP2773821B1 (fr) 2017-04-05

Family

ID=44906143

Family Applications (1)

Application Number Title Priority Date Filing Date
EP11778620.2A Active EP2773821B1 (fr) 2011-11-03 2011-11-03 Cadre pour paroi sèche et paroi sèche ayant des propriétés acoustiques améliorées

Country Status (5)

Country Link
EP (1) EP2773821B1 (fr)
DK (1) DK2773821T3 (fr)
ES (1) ES2625820T3 (fr)
PL (1) PL2773821T3 (fr)
WO (1) WO2013064191A1 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2835473A1 (fr) 2013-08-09 2015-02-11 Recticel Ensemble d'éléments de construction pour partitionnement de l'espace

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2052024A (en) * 1934-11-20 1936-08-25 Harry W Hahn Metal stud for buildings
US3999343A (en) * 1974-01-01 1976-12-28 United States Gypsum Company Partition and stud therefor
AU4864196A (en) * 1995-02-02 1996-08-21 Robert M.M. Haddock Frame for a building structure and method of assembling the same
DE19934310A1 (de) 1999-07-21 2001-01-25 Profil Vertrieb Gmbh Als Leichtbauprofil ausgebildetes Ständerprofil
SE516488C2 (sv) * 2000-01-31 2002-01-22 Gasel Profil Ab Rännformigt bärelement av metallplåt för väggskiva eller liknande.
GB0212734D0 (en) 2002-05-31 2002-07-10 Lafarge Plasterboard Ltd Wall stud
US20070163191A1 (en) * 2006-01-06 2007-07-19 Berry John H Mold resistant structural drywall track

Non-Patent Citations (1)

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

Also Published As

Publication number Publication date
ES2625820T3 (es) 2017-07-20
DK2773821T3 (en) 2017-07-10
WO2013064191A1 (fr) 2013-05-10
PL2773821T3 (pl) 2017-09-29
EP2773821A1 (fr) 2014-09-10

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Inventor name: LEE, HYE-MI

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