EP3524745A1 - Composant destiné à l'absorption de bruit - Google Patents

Composant destiné à l'absorption de bruit Download PDF

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Publication number
EP3524745A1
EP3524745A1 EP18211406.6A EP18211406A EP3524745A1 EP 3524745 A1 EP3524745 A1 EP 3524745A1 EP 18211406 A EP18211406 A EP 18211406A EP 3524745 A1 EP3524745 A1 EP 3524745A1
Authority
EP
European Patent Office
Prior art keywords
ceiling
wall
component
hollow body
slab
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP18211406.6A
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German (de)
English (en)
Other versions
EP3524745B1 (fr
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.)
Pakon AG
Original Assignee
Pakon AG
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Filing date
Publication date
Application filed by Pakon AG filed Critical Pakon AG
Publication of EP3524745A1 publication Critical patent/EP3524745A1/fr
Application granted granted Critical
Publication of EP3524745B1 publication Critical patent/EP3524745B1/fr
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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
    • E04B5/00—Floors; Floor construction with regard to insulation; Connections specially adapted therefor
    • E04B5/16—Load-carrying floor structures wholly or partly cast or similarly formed in situ
    • E04B5/32—Floor structures wholly cast in situ with or without form units or reinforcements
    • E04B5/36—Floor structures wholly cast in situ with or without form units or reinforcements with form units as part of the floor
    • E04B5/38—Floor structures wholly cast in situ with or without form units or reinforcements with form units as part of the floor with slab-shaped form units acting simultaneously as reinforcement; Form slabs with reinforcements extending laterally outside the element
    • E04B5/40—Floor structures wholly cast in situ with or without form units or reinforcements with form units as part of the floor with slab-shaped form units acting simultaneously as reinforcement; Form slabs with reinforcements extending laterally outside the element with metal form-slabs
    • 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
    • E04B1/82—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 sound only
    • E04B2001/8263—Mounting of acoustical elements on supporting structure, e.g. framework or wall surface
    • E04B2001/8281—Flat elements mounted parallel to a supporting surface with an acoustically active air gap between the elements and the mounting surface
    • 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
    • E04B1/82—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 sound only
    • E04B1/84—Sound-absorbing elements
    • E04B2001/8423—Tray or frame type panels or blocks, with or without acoustical filling
    • E04B2001/8442—Tray type elements
    • 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
    • E04B1/82—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 sound only
    • E04B1/84—Sound-absorbing elements
    • E04B2001/8423—Tray or frame type panels or blocks, with or without acoustical filling
    • E04B2001/8452—Tray or frame type panels or blocks, with or without acoustical filling with peripheral frame members
    • 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
    • E04G15/00—Forms or shutterings for making openings, cavities, slits, or channels
    • E04G15/06—Forms or shutterings for making openings, cavities, slits, or channels for cavities or channels in walls of floors, e.g. for making chimneys
    • E04G15/061—Non-reusable forms

Definitions

  • the invention relates to a component for sound absorption in rooms and a slab ceiling element or a double wall element with the component and to a method for producing a slab element or a double wall element with the component for sound absorption.
  • sound absorbers which are usually mounted in the form of plates on walls and ceilings. They usually have a porous structure through which results in a corresponding flow resistance. Due to the resulting friction, the penetrating sound energy is converted into heat and friction. The sound waves are therefore no longer reflected, but absorbed, that is not reflected back into the room.
  • the simplest sound absorbers known from the prior art are foam sheets, for example bubble foam or pyramid foam.
  • Sound absorbers are also known from the prior art, which are not subsequently applied to ceilings and walls, but which are integrated directly into the wall or ceiling during the manufacture of the wall or ceiling on the construction site, ie in the shell phase.
  • These are, for example, what are known as acoustic strips, U-shaped profiles made of a fiber concrete filled with expanded glass granules as an acoustically effective part (absorber). This part is permanently connected to the u-shaped profile.
  • These acoustic strips are placed, for example, as a concrete spacer for a reinforcement of a reinforced concrete ceiling on a concrete formwork.
  • the acoustic material is poured without u-shaped profile directly as a plate strip in the concrete.
  • the object of the present invention is to avoid at least one disadvantage resulting from the prior art.
  • the inventive element for sound absorption in rooms comprises a hollow body open on one side for flush mounting in a ceiling or a wall with a bottom and a side wall surrounding this bottom.
  • the hollow body is preferably already installed in the production of a structural element for building the ceiling or the wall in a precast concrete factory.
  • the sound absorbers which constitute a further part of the device according to the invention, can only be inserted into the hollow body in this location. Depending on the room and individual customer requirements, different types of sound absorbers can be selected.
  • the ceiling in which the components according to the invention are used is preferably a panel ceiling which is also known under the term filigree corner, for example in accordance with the reinforced concrete standard DIN 1045-1. It consists of slab ceiling elements in the form of large-format, 4 or 5 cm, depending on static requirements also 6 cm thick prefabricated reinforced concrete slabs, which are supplemented with on-site concrete to the final ceiling thicknesses on site. The slab elements and the in-situ concrete bond together. This is ensured by the rough surface of the slab ceiling elements and steel lattice girders, which are already embedded in the slab ceiling elements in the precast concrete factory. The slab ceiling elements and in-situ concrete therefore work together in the same way as if the entire ceiling had been produced in one piece.
  • a reinforcement layer for the slab ceiling is usually installed in the slab ceiling elements.
  • the hollow bodies of the components according to the invention which are open on one side are preferably also integrated into the panel ceiling elements. These are arranged flush with the visible side of the slab ceiling elements and the plate slab produced therefrom.
  • element wall stands for the construction in which the wall is constructed from prefabricated double wall elements. These consist of two thin wall shells (eg inside 4.5 to 7.5 cm thick, outside each 5 to 7.5 cm thick), which are connected by lattice girders to work with remaining space. Reinforced Walls the statically required reinforcement is completely or partially introduced into the wall shells. Usual dimensions for the double wall elements are heights up to 3 m and lengths up to 6 m. The usual wall thicknesses are 18 - 42 cm.
  • the space between the two wall shells is filled with ready-mixed concrete, so that the overall cross section after the hardening of the concrete carries monolithic.
  • the visible concrete surfaces are smooth, flat and dense.
  • the unilaterally open hollow body of the components are now according to the invention preferably already installed in the precast concrete factory flush with the visible side of the element wall in the double wall elements.
  • the inventive device can also be closed with a lid, which is then placed on the open side of the hollow body. In the attached state, this is preferably arranged flush with the ceiling or wall. In a preferred embodiment, this is a hole cover, e.g. made of aluminum, stainless steel, plastic or special concrete. Other possibilities instead of a lid can be: a tension sail, a fabric wallpaper or a stainless steel sheet in which openings were lasered.
  • a skirt is arranged on the side wall of the bottom, which runs around an edge of the side wall partially or completely.
  • the edge strip runs flush with the visible side of the ceiling or wall.
  • a groove is arranged flush with the surface to the visible side of the ceiling or wall in the edge strip. Inserted or plugged into this groove is the aforementioned cover or a sealing tape in the manufacture of a tile ceiling element or wall element in the precast concrete factory. Through the sealing tape is the Prevention of concrete in the hollow body prevented. The sealing tape thus enables an accurate transition from edge strip to the visible side of the ceiling or the wall. A post-processing is no longer necessary because the edge course is already shapely designed.
  • the edge strip has on the side facing an inner side of the hollow body, a fastening element for non-destructively releasable storage protection of the sound absorber in the hollow body. It may be an element for producing a latching connection such as a projection or a spring element or a magnetic element.
  • the sound absorber can be fixed in this way variable in the hollow body.
  • the skirt is made as an extrusion of a plastic material.
  • the open side of the hollow body is, when installed, aligned to the visible side of the ceiling or the wall.
  • the sound absorber which is mountable in the hollow body, thus has (without mounting the lid) a visible side and a further side facing the bottom of the hollow body. There may be a cavity between the floor and the sound absorber.
  • a vibrating body for example a steel plate, a steel cup or else an aluminum foil, is arranged in this cavity.
  • the sound absorber itself preferably comprises a layer of sound-permeable material (eg expanded clay spheres) and a broad-band frequency absorber.
  • the bottom of the hollow body which faces the sound absorber in the installed state, may be at least partially made of a magnetic material, which allows its attachment with a certain contact pressure, for example on a steel formwork with magnetic means. That side of the floor which, when installed, adjoins the ceiling or wall can be provided with a coating which reduces the sound transmission.
  • Further materials which are used for the bottom and / or the side walls of the hollow body are: a thin-walled concrete shell, a thin-walled plastic shell, a thin-walled cardboard casing or a combination of thin-walled plastic casing and thin-walled metal casing.
  • the invention further relates to a slab ceiling element or double wall element made of reinforced concrete and with lattice girders into which surface-flush the inventive component is used.
  • the quality of the surface that results corresponds to the quality of an exposed concrete surface.
  • the height of the surface-mounted in the ceiling or wall inventive device in particular the height of the hollow body, preferably corresponds to a maximum of the height of a proper concrete coverage of a reinforcement.
  • the height of the hollow body is composed of the thickness of the floor including coating, the height of the circumferential side wall and the edge strip.
  • the height of the hollow body is 30 mm, with a thickness of the slab ceiling element of 50 mm. With such a dimensioning, the component according to the invention can be made relatively large, without it colliding with the reinforcement of the ceiling or wall.
  • the inventive component is formed relatively small area and engages between the reinforcement as a rule.
  • a method for producing a plate ceiling element or a double wall element having the inventive element for sound absorption comprises the following steps: In a first step, at least one hollow body of a component according to the invention is arranged with its open side resting on a shuttering bed. A sound absorber is preferably not yet inserted into the hollow body, so that it is empty.
  • the side wall of the hollow body has a skirt with a groove in which a sealing tape is arranged.
  • a contact pressure of the hollow body and with it the sealing strip is generated against the shuttering bed.
  • the formwork bed consists of a magnetic metal, for example a steel formwork as in precast concrete plant
  • this contact pressure can be generated by magnetic means.
  • only the bottom of the hollow body must be at least partially made of a magnetic material.
  • the magnetic means may consist of one or more magnets which are simply placed in the still empty hollow body between its bottom and the formwork bed.
  • the magnetic pressure means can be easily removed and reused.
  • a contact pressure for the sealing tape could also be provided in other ways, e.g. be generated by mechanical means.
  • FIG. 1 shown is the inventive device 1 installed in a ceiling 3, for example, a slab ceiling, or a wall 4, for example, a double wall.
  • the slab ceiling and the double wall are, for example, prefabricated concrete elements from a precast concrete factory, the final assembly of which takes place on the construction site.
  • the inventive element 1, in particular the hollow body 2 is integrated in this case already in the precast concrete plant in the ceiling 3 or the wall 4.
  • the installation of the sound absorber (30) then takes place preferably, adapted to the individual customer request, at the construction site on site.
  • the inventive device 1 comprises a hollow body 2 of the flush-mounted in the wall 3 or the ceiling 4 sits.
  • the hollow body 2 comprises a bottom 21 with a side wall 22.
  • the skirt 6 has a first groove 61 for receiving a cover 5.
  • the edge strip 6 comprises fastening means 62 for the non-destructively releasable position securing of a sound absorber 30.
  • the edge strip 6 also comprises fastening means 63 for fixing the hollow body 21 in the ceiling 4 or the wall 3.
  • first layer 24 is a layer which reduces the sound transmission, for example a flexible polyurethane foam.
  • side of the floor 21 which is applied to the sound absorber 30 in the installed state is at least partially made of a magnetic material 23.
  • a cavity 8 is present between the sound absorber 30 and the bottom 21.
  • the inventive device 1 is in the in Fig. 1 illustrated embodiment closed by a cover 5.
  • the cover 5 extends flush with the surface to the wall 3 or the ceiling 4.
  • the cover 5 is configured for example as a hole cover.
  • the sound absorber 30 is in the installed state behind the lid 5.
  • the cover 5 may be configured in the following variants: as a perforated plate, as a tension sail, as a fabric wallpaper or as a stainless steel sheet in which openings were lasered.
  • FIG. 2 a further embodiment of the inventive device 1 is shown, wherein, however, the hollow body 2 and the cover 5 identical to the embodiment of the FIG. 1 are why they have been given the same reference numerals.
  • the embodiment shown is a two-part sound absorber 35. Seen from the visible side of the wall or the ceiling, the first part 35C is a layer of cement-bound expanded clay, followed by the second part 35B of one Layer of a foam, for example based on polyurethane ..
  • a third part 35A in the form of a so-called resonant oscillator, which lies behind the layer 35B when viewed from the visible side of the wall or the ceiling.
  • this is a steel plate 35A.
  • FIG. 3 shows the embodiment of the inventive device FIG. 2 , Identical parts were therefore designated by the same reference numerals.
  • the hollow body 2 is in the ceiling 3, here a slab ceiling element (also called filigree) used. It is, for example, the "delivery status" from the ready-mixed concrete plant.
  • the slab ceiling element is eg 50 mm thick and made of reinforced concrete 37 with lattice girders 32.
  • the hollow body 2 which later absorbs the sound absorber 35 under the reinforcement 37. With a height of the hollow body 2 of about 20 - 30 mm, this corresponds to the height of a legally prescribed concrete cover for reinforcements.
  • the hollow body 2 is thus also used as a concrete spacer when producing the slab ceiling element.
  • the skirt 6 closes flush with the plate ceiling element 3 from. Between the skirt 6 and the edge 36 of the ceiling 3 there is an accurate transition that does not need to be reworked on the construction sites.
  • the sound absorber 35 or other variants of sound absorbers can be used locally on the site variable according to customer requirements and provided with the desired cover 5.
  • FIG. 4 schematically shows a section of a slab ceiling element 31 and a double wall element 41, each with a built-in inventive element 1 of reinforced concrete with lattice girders 32, 42.
  • the illustrated surfaces 33, 44 correspond to the quality of a exposed concrete surface. Recognizable in FIG. 4 is the arrangement of the inventive components in the concrete cover 34, 45 below or next to a reinforcement 37, 47th
  • FIG. 5 shows a partial step of a method for producing a slab ceiling element 31 with built-in inventive device 1.
  • Shown is the edge strip 6 with the first groove 61 in which a sealing tape 7 is inserted.
  • the sealing strip 7 rests on the shuttering bed 9.
  • that side of the floor 21 which is later exposed to the sound absorber 30 is preferably at least partially made of a magnetic material 23.
  • the hollow body 2 may be filled with magnetic means (in FIG FIG.
  • a contact pressure for the sealing strip can also be generated mechanically, for example by means of a threaded rod with a nut, which is inserted through a hole in the hollow body and adhered to the formwork via a plate with adhesive. After demoulding, the threaded rod can either be unscrewed or broken off at a predetermined breaking point.

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  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Building Environments (AREA)
EP18211406.6A 2018-02-12 2018-12-10 Composant destiné à l'absorption de bruit Active EP3524745B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH00166/18A CH714639A2 (de) 2018-02-12 2018-02-12 Bauelement zur Schallabsorption in Räumen.

Publications (2)

Publication Number Publication Date
EP3524745A1 true EP3524745A1 (fr) 2019-08-14
EP3524745B1 EP3524745B1 (fr) 2023-03-22

Family

ID=64664194

Family Applications (1)

Application Number Title Priority Date Filing Date
EP18211406.6A Active EP3524745B1 (fr) 2018-02-12 2018-12-10 Composant destiné à l'absorption de bruit

Country Status (2)

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EP (1) EP3524745B1 (fr)
CH (1) CH714639A2 (fr)

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB694613A (en) * 1950-08-25 1953-07-22 Gabriel Noel Richard Process for manufacturing joists consisting of hollow units, for ceilings and the like
US3864888A (en) * 1973-05-22 1975-02-11 Kaiser Gypsum Company Inc Apparatus and method for employing gypsum board as forms for poured concrete ceiling and floor structures
US4453349A (en) * 1981-02-20 1984-06-12 Cyclops Corporation Floor and roof deck

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT508797B1 (de) * 2009-09-17 2011-07-15 Friedrich Ing Mag Blaha Modifizierbares schalldämpfungselement

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB694613A (en) * 1950-08-25 1953-07-22 Gabriel Noel Richard Process for manufacturing joists consisting of hollow units, for ceilings and the like
US3864888A (en) * 1973-05-22 1975-02-11 Kaiser Gypsum Company Inc Apparatus and method for employing gypsum board as forms for poured concrete ceiling and floor structures
US4453349A (en) * 1981-02-20 1984-06-12 Cyclops Corporation Floor and roof deck

Also Published As

Publication number Publication date
CH714639A2 (de) 2019-08-15
EP3524745B1 (fr) 2023-03-22

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