EP2539518B1 - Fire protection construction composed of fire protection panels and sound absorber elements - Google Patents

Fire protection construction composed of fire protection panels and sound absorber elements Download PDF

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Publication number
EP2539518B1
EP2539518B1 EP11707615.8A EP11707615A EP2539518B1 EP 2539518 B1 EP2539518 B1 EP 2539518B1 EP 11707615 A EP11707615 A EP 11707615A EP 2539518 B1 EP2539518 B1 EP 2539518B1
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EP
European Patent Office
Prior art keywords
fire
sound
protection
absorber
fire protection
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EP11707615.8A
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German (de)
French (fr)
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EP2539518A1 (en
Inventor
Christian Hoppe
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Liaver GmbH and Co KG
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Liaver GmbH and Co KG
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Publication of EP2539518A1 publication Critical patent/EP2539518A1/en
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    • 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
    • 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
    • E04B1/86—Sound-absorbing elements slab-shaped
    • 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
    • E04B1/92—Protection against other undesired influences or dangers
    • E04B1/94—Protection against other undesired influences or dangers against fire
    • E04B1/941—Building elements specially adapted therefor
    • E04B1/942—Building elements specially adapted therefor slab-shaped
    • 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
    • E04B1/92—Protection against other undesired influences or dangers
    • E04B1/94—Protection against other undesired influences or dangers against fire
    • E04B1/941—Building elements specially adapted therefor
    • E04B1/943—Building elements specially adapted therefor elongated
    • E04B1/944—Building elements specially adapted therefor elongated covered with fire-proofing material
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
    • E04B9/00—Ceilings; Construction of ceilings, e.g. false ceilings; Ceiling construction with regard to insulation
    • E04B9/001—Ceilings; Construction of ceilings, e.g. false ceilings; Ceiling construction with regard to insulation characterised by provisions for heat or sound insulation
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
    • E04B9/00—Ceilings; Construction of ceilings, e.g. false ceilings; Ceiling construction with regard to insulation
    • E04B9/04—Ceilings; Construction of ceilings, e.g. false ceilings; Ceiling construction with regard to insulation comprising slabs, panels, sheets or the like
    • E04B9/045—Ceilings; Construction of ceilings, e.g. false ceilings; Ceiling construction with regard to insulation comprising slabs, panels, sheets or the like being laminated

Definitions

  • the present invention relates to a fire protection structure, which uses a sound absorbing element, in addition to fire protection functions to take over acoustic functions, in particular to absorb room sound, in order to improve the room acoustics.
  • the sound absorber element is adapted in particular for installation in a wall or ceiling fire protection structure made of fire protection boards.
  • Such a fire protection structure is designed as a suspended ceiling construction or superior wall construction.
  • Preferred but not exclusive fields of application for the fire protection construction according to the invention are building construction, shipbuilding, industrial construction and tunneling.
  • Conventional fire protection structures are installed in different structures in order to increase the fire resistance of individual parts of the building, in particular to reduce the fire propagation speed.
  • fire protection plates made of non-combustible materials (so-called A1 materials) are attached.
  • Conventional fire protection boards only to a limited extent take on static functions (for example in the construction of lightweight walls) and usually show no desirable acoustic properties. If special room acoustics requirements are imposed, either additional acoustic elements must be installed, which significantly increases the production costs of buildings, or structural compromises are required that are at the expense of fire protection, for example if acoustic panels are installed on suspended ceilings which do not meet high fire protection requirements themselves.
  • the DE 34 44 881 C2 shows a sound-absorbingschreibwand- or ceiling structure of joint-bumped mineral fiber boards, which are connected to a supporting structure.
  • the mineral fiber boards are designed as prefabricated elements and have an adhesive layer on both sides.
  • the DE 93 21 610 U1 is an acoustic ceiling of sound-absorbing lightweight panels described.
  • the lightweight panels consist of interconnected by means of synthetic resin Blähglas-, Blähton- or similar particles.
  • the insulating body has a hovwerksporige structure, which is formed from expanded glass granules in a stable binder framework.
  • the DE 44 08 177 A1 shows a noise protection wall part, in which a wall element of solid concrete is provided on one side with an open-pore absorption layer.
  • the absorption layer contains mineral-silicate particulate material, in particular expanded clay or expandable slate.
  • a molded body made of a lightweight material known which has sound insulating properties is a liquid phase sintering of a mixture of a lightweight aggregate and a soda water glass takes place.
  • the lightweight aggregate used are expanded glass, perlite and / or expanded clay.
  • the lightweight aggregate particles are under formation of a Soda lime glass connected to this network. It is proposed to use the shaped body as an acoustic panel, in particular as a baffle, for which, however, no further instructions are given.
  • the DE 100 20 955 A1 shows a shaped body which is formed exclusively of sintered together lightweight aggregates selected from expanded glass granules, expanded clay granules or thermally pre-expanded perlites.
  • the object of the present invention is therefore to provide a fire protection structure made of fire protection panels for walls or ceilings of rooms, which can also take on acoustic tasks in addition to the actual fire protection function, in particular to absorb relevant sound components and thus to improve the room acoustics.
  • a fire protection structure according to the invention made of fire protection boards is particularly suitable for the arrangement on walls or ceilings of rooms.
  • the surface formed by the fire protection plates is interrupted along several lines. At these interruptions, a non-flammable, the fire protection requirements equally fulfilling, elongated sound absorber element is inserted between adjacent fire protection boards.
  • An absorption surface of the sound absorber element lies substantially in a plane with the surface of the fire protection plates facing the interior of the room.
  • the absorption surface is in the plane of the surface of the fire protection boards to give a closed visual impression and no unnecessary attack edges to provide for heat exposure.
  • a slight height offset (of, for example, 5% -10% of the thickness of the fire protection boards), but it obviously does not matter.
  • the sound absorber element used according to the invention is characterized on the one hand by the fact that it is suitable for easy installation in a wall or ceiling construction of fire protection boards.
  • it has an elongated carrier hollow profile, which has on two opposite longitudinal sides outwardly projecting attachment sections, which serve the attachment to each adjacent fire protection panels.
  • a longitudinally extending recess is provided, which opens into the inner cavity of the carrier hollow profile.
  • This recess can occupy the entire length and width of the front, so that the carrier hollow profile has a U-shaped cross section with laterally mounted attachment portions.
  • the recess extending at the front can alternatively be introduced as a groove or slot in a wall surface, so that narrow wall sections remain at the edges of the front side.
  • the sound absorber element further comprises an absorber strip of a sound-absorbing, non-combustible material which is fixed in the carrier hollow profile and has an absorption surface which is exposed in the plane of the recess of the carrier hollow profile and is not covered by fire protection plates even after the installation of the sound absorber element.
  • the attachment of the absorber strip takes place e.g. by clamping or gluing with a fire-resistant adhesive.
  • the absorber strip of the sound absorber element preferably consists of a glass-based, acoustically effective foam.
  • a glass-based, acoustically effective foam is a non-ductile mineral foam which may have high strength such as a stone, brick or concrete block processed in construction. Because it is a foam, there is a surface structure and, in the case of an advantageous design, a structure leaving a continuous airway, which in particular has an acoustically advantageous effect, namely in the sense of sound swallowing. Since at the same time a diffusion-open structure of the spacer is given, advantageous properties also result with regard to a removal of moisture, for example, from the space adjacent to the open absorption surface of the sound absorber element.
  • the carrier hollow profile is formed as a rail with a U-shaped cross-section.
  • the absorber strip then has a rectangular or square cross-section structure and corresponds in width to the fully open front of the profile.
  • the exposed absorption area is then the area which, when installed, faces outwards, i. is exposed to the acoustically influencing space.
  • the desired sound efficiency can be achieved particularly favorable by the foam.
  • the foam is replaced by another suitable sound absorbing material.
  • soft and possibly deformable materials such as rock wool or mineral wool can be used for sound absorption and form the absorber strip.
  • the carrier hollow profile is preferably made of metal, for example steel sheet. According to a preferred embodiment, the carrier hollow profile has inwardly directed holding elements which engage in the latter for fastening the absorber strip and / or exert clamping forces thereon.
  • the outwardly extending mounting portions of the carrier hollow profile are preferably formed as running on the opposite longitudinal sides of material strips, which are substantially perpendicular to the longitudinal sides.
  • the attachment portions may be made integral with the wall of the profile, or e.g. be secured by spot welding, rivets or the like.
  • the sound absorber element is preferably installed in the fire protection structure such that at least the absorption surface is exposed in the finished construction.
  • the absorption surface may also be covered by a further material layer, which is preferably acoustically highly permeable, for example in order to protect it against environmental influences or to enable an optical design.
  • the acoustically effective foam forming the absorber strip consists of glass parts or particles which are connected to one another by means of a binder.
  • the binder may be a hydraulic, also hydraulically setting binder. It is preferably a binder based on cement or ceramic. It is also expedient if the binder has a fiber content. Last but not least, such a fiber content can ensure the possibly desired diffusion openness or support it. Also, the fiber content contribute to the acoustic effectiveness.
  • the glass particles are preferably expanded glass granules which are compacted with the aid of the binder or else by a sintering process to form the acoustically effective foam.
  • the sound absorber element preferably has a rectangular or square, possibly also trapezoidal or triangular cross section.
  • Such a cross-section forms a flat absorption surface, which is integrated into the visible side or the outside of the fire protection structure to be acoustically influenced.
  • this absorption surface is not flat, but is characterized by the structure of the sound-absorbing material.
  • the absorption surface, which forms the visible side or is integrated into the outside of a concrete pavement is also that surface which is not covered or only along its edges by the material of the carrier hollow profile.
  • the absorption surface is initially covered by a self-adhesive film or similar protective layer.
  • This protective layer protects the absorbing surface from contamination during processing and can be removed after final completion of the fire protection construction.
  • the sound absorbing element is formed in the manner described above.
  • the fastening sections attached to the carrier hollow profile of the sound absorber element preferably rest on the rear side of the fire protection plates so that they are not visible from the interior of the room.
  • the position of the attachment portions is chosen so that the exposed absorption surface substantially in one Level with the surface of the fire protection boards, resulting in a closed surface of the wall or ceiling construction.
  • the thickness of the sound absorber element is selected, for example, such that it corresponds overall to the thickness of the fire protection boards, so that behind the fire protection boards no additional cavities for the installation of the sound absorber elements are needed.
  • the sound-absorbing element may for example have a thickness of about 25 mm.
  • the fastening sections of the sound absorber element can also be used between the individual layers, whereby the assembly is facilitated.
  • a preferred embodiment of the fire protection structure is characterized in that the carrier hollow profile of the sound absorbing element is also clad on its longitudinal sides and its back with fire protection material.
  • the originally existing fire protection effect of the absorber strip in the sound absorber element is further enhanced. For particularly high fire protection requirements, this enclosure ensures a closed fire protection area.
  • the dimensions of the individual sound absorber elements and their spacing when installed in the fire protection structure are preferably chosen so that the exposed absorption surfaces of the sound absorber elements occupy about 15% to 30% of the total area of the fire protection structure. It has been found that the acoustic effect achievable with it is sufficiently high, by about 70% to 80% of the sound absorption a complete coverage of the available area with sound absorbing material can be achieved.
  • the acoustically effective absorption surfaces can be painted or coated with an open-pored plaster. It must be ensured that a coating remains acoustically permeable so that the sound-absorbing properties are retained.
  • the glass-based acoustically-effective foam may be produced by conventional sintering techniques.
  • the hollow housing profiles can be easily produced by deep drawing or bending. A wall thickness of 1-3 mm is particularly preferred.
  • the carrier hollow sections can take on static tasks for the fire protection construction with a correspondingly stable design and replace, for example, the usual ceiling slab rails or the stand of lightweight walls.
  • the absorber strip is mechanically fastened in the profile or e.g. glued.
  • Fig. 1 shows a cross-sectional view of a fire protection structure according to the invention.
  • the fire protection structure comprises a sound absorber element 1, to which fire protection plates 2 adjoin on both sides.
  • the fire protection panels 2 are in conventionally attached to a stand construction, to suspended mounting rails or other stabilizing the wall or ceiling structure components.
  • the fire protection panels 2 can be arranged in one layer (shown left of the sound absorber element) or in multiple layers (shown on the right of the sound absorber element).
  • the fire protection panels 2 are interrupted in their main extension plane to accommodate the sound absorbing element 1.
  • In a fire protection construction usually several parallel sound absorbing elements are arranged, for example at a distance of 30 to 70 cm.
  • the sound absorber element 1 has a carrier hollow profile 5, in whose cavity an absorber strip 6 is arranged.
  • the carrier hollow profile 5 is formed by a U-shaped sheet metal rail, which has two longitudinal sides and a rear side.
  • the front of the carrier hollow profile is open, so that the absorber strip 6 is exposed at this front.
  • the exposed surface of the absorber strip 6 forms an absorption surface 7, which is directed to the space to be acoustically influenced.
  • the absorption surface 7 is preferably in a plane with the surface of the adjacent fire protection panels. 2
  • the absorber strip 6 consists of an acoustically effective, namely sound-absorbing material in the manner of a foam.
  • it is a mineral material that forms a rigid foam.
  • the absorber strip 6 consists of glass-based, acoustically active and diffusion-open foam. Individual glass particles are connected by a binder, which may also have a fiber content, together to form a bar structure.
  • the edge length For example, the absorber strip 6 can be in the range of 2 to 8 cm.
  • a square cross-section is clearly chosen. Other cross-sections of the absorber strip 6 are also conceivable (eg triangular, oval, round) and may be advantageous for special applications due to their acoustic properties.
  • the length of the absorber strip 6 may be approximately in the range of 0.5 to 3 m. It is understandable to the person skilled in the art that the dimensions and the shape of the spacers can be adapted almost arbitrarily to the respective application. Decisive for the invention is that the absorber strip 6 consists of a material which has a good sound absorbing effect and at the same time has good fire protection properties.
  • the absorber strip 6 is fastened in the illustrated embodiment by means of two-sided punched and inwardly bent holding elements 10 in the carrier hollow profile 5. After insertion of the absorber strip 6, the holding elements 10 are pressed by the longitudinal sides of the carrier hollow profile inwards, so that they clamp the absorber strip 6 and / or partially penetrate into this.
  • the holding elements may be formed by pins, screws, rivets or the like, which engage through the wall of the carrier hollow profile in the absorber strip. It is also possible to glue the absorber strip in the profile or provide at the front of the carrier profile holding edges that prevent falling out of the absorber strip.
  • fire protection plates 11 can be attached to the back of the support hollow profile and optionally also on sections of the longitudinal sides.
  • fastening sections 12 are provided on the longitudinal sides, which are formed in the illustrated embodiment by elongated strips of material. With stable design of the carrier hollow profiles, these can assume a supporting function for the fire protection panels.
  • a lower fire protection plate 2 is arranged, for example, in a multi-layer structure, to which the fastening portions 12 of the sound absorber element can be screwed. Equivalent attachment methods are also possible.
  • the attachment portions 12 are positioned so that the sound absorber element projects beyond the lower fire protection plate 2, so that an upper fire protection plate can be applied, which also extends to the longitudinal sides of the support hollow profile and completely covers the attachment portions.
  • the surfaces of the upper fire protection plate and the absorption strip 6 then lie substantially in one plane.
  • the sound absorber elements can be connected in different ways with the fire protection panels.
  • the sound absorber elements can also be connected to other components, such as the supporting structure of the wall / ceiling.

Description

Die vorliegende Erfindung betrifft eine Brandschutzkonstruktion, die ein Schallabsorberelement verwendet, um neben Brandschutzfunktionen auch akustische Funktionen zu übernehmen, insbesondere Raumschall zu absorbieren, um damit die Raumakustik zu verbessern. Das Schallabsorberelement ist dabei insbesondere für den Einbau in eine Wand- oder Decken-Brandschutzkonstruktion aus Brandschutzplatten angepasst. Eine derartige Brandschutzkonstruktion ist als abgehängte Deckenkonstruktion oder vorgesetzte Wandkonstruktion ausgebildet. Bevorzugte aber nicht ausschließliche Einsatzgebiete für die erfindungsgemäße Brandschutzkonstruktion sind Hochbau, Schiffbau, Industriebau und Tunnelbau.The present invention relates to a fire protection structure, which uses a sound absorbing element, in addition to fire protection functions to take over acoustic functions, in particular to absorb room sound, in order to improve the room acoustics. The sound absorber element is adapted in particular for installation in a wall or ceiling fire protection structure made of fire protection boards. Such a fire protection structure is designed as a suspended ceiling construction or superior wall construction. Preferred but not exclusive fields of application for the fire protection construction according to the invention are building construction, shipbuilding, industrial construction and tunneling.

Herkömmliche Brandschutzkonstruktionen werden in unterschiedlichen Bauwerken angebracht, um den Feuerwiderstand einzelner Gebäudeteile zu erhöhen, insbesondere um die Brandausbreitungsgeschwindigkeit zu reduzieren. An vorhandenen Gebäudewänden oder -decken werden dazu Brandschutzplatten aus nicht brennbaren Materialien (sogenannte A1 Materialien) angebracht. Herkömmliche Brandschutzplatten übernehmen nur im beschränkten Maße statische Funktionen (beispielsweise beim Aufbau von Leichtbauwänden) und zeigen zumeist keine wünschenswerten akustischen Eigenschaften. Wenn besondere Anforderungen an die Raumakustik gestellt werden, müssen entweder zusätzliche akustische Elemente eingebaut werden, was den Herstellungsaufwand von Gebäuden deutlich erhöht, oder es sind bauliche Kompromisse erforderlich, die zu Lasten des Brandschutzes gehen, beispielsweise wenn an abgehängten Decken Akustikplatten angebracht werden, die selbst keine hohen Brandschutzanforderungen erfüllen.Conventional fire protection structures are installed in different structures in order to increase the fire resistance of individual parts of the building, in particular to reduce the fire propagation speed. On existing building walls or ceilings fire protection plates made of non-combustible materials (so-called A1 materials) are attached. Conventional fire protection boards only to a limited extent take on static functions (for example in the construction of lightweight walls) and usually show no desirable acoustic properties. If special room acoustics requirements are imposed, either additional acoustic elements must be installed, which significantly increases the production costs of buildings, or structural compromises are required that are at the expense of fire protection, for example if acoustic panels are installed on suspended ceilings which do not meet high fire protection requirements themselves.

Die DE 34 44 881 C2 zeigt einen schallabsorbierenden Gebäudewand- bzw. Deckenaufbau aus fugendicht gestoßenen Mineralfaserplatten, die mit einer tragenden Konstruktion verbunden sind. Die Mineralfaserplatten sind als Fertigelemente ausgebildet und weisen auf beiden Seiten eine haftende Schicht auf.The DE 34 44 881 C2 shows a sound-absorbing Gebäudewand- or ceiling structure of joint-bumped mineral fiber boards, which are connected to a supporting structure. The mineral fiber boards are designed as prefabricated elements and have an adhesive layer on both sides.

In der DE 93 21 610 U1 ist eine Akustikdecke aus schallschluckenden Leichtbauplatten beschrieben. Die Leichtbauplatten bestehen aus mittels Kunstharz miteinander verbundenen Blähglas-, Blähton- oder ähnlichen Partikeln.In the DE 93 21 610 U1 is an acoustic ceiling of sound-absorbing lightweight panels described. The lightweight panels consist of interconnected by means of synthetic resin Blähglas-, Blähton- or similar particles.

Aus der DE 196 53 807 A1 ist ein mineralischer Dämmkörper bekannt, der als Schall- oder Wärmedämmplatte ausgebildet ist. Der Dämmkörper besitzt eine haufwerksporige Struktur, die aus Blähglasgranulatteilchen in einem stabilen Bindemittelgerüst gebildet ist.From the DE 196 53 807 A1 is a mineral insulating body known, which is designed as a sound or thermal insulation board. The insulating body has a hovwerksporige structure, which is formed from expanded glass granules in a stable binder framework.

Die DE 44 08 177 A1 zeigt ein Lärmschutz-Wandteil, bei welchem ein Wandelement aus Massivbeton auf einer Seite mit einer offenporigen Absorptionsschicht versehen ist. Die Absorptionsschicht enthält mineralisch-silikatisches Teilchenmaterial, insbesondere Blähton oder Blähschiefer.The DE 44 08 177 A1 shows a noise protection wall part, in which a wall element of solid concrete is provided on one side with an open-pore absorption layer. The absorption layer contains mineral-silicate particulate material, in particular expanded clay or expandable slate.

Aus der DE 197 12 835 C3 ist ein Formkörper aus einem Leichtwerkstoff bekannt, welcher schalldämmende Eigenschaften besitzt. Für die Herstellung des Formkörpers erfolgt eine Flüssigphasensinterung einer Mischung aus einem Leichtzuschlagstoff und einem Natronwasserglas. Als Leichtzuschlagstoff werden Blähglas, Perlite und/oder Blähton verwendet. Die Leichtzuschlagstoffpartikel sind unter Ausbildung eines Natronkalkglases mit diesem netzwerkartig verbunden. Es wird vorgeschlagen, den Formkörper als Akustikplatte, insbesondere als Baffel einzusetzen, wofür jedoch keine weiterführenden Hinweise gegeben werden.From the DE 197 12 835 C3 is a molded body made of a lightweight material known which has sound insulating properties. For the production of the shaped body, a liquid phase sintering of a mixture of a lightweight aggregate and a soda water glass takes place. The lightweight aggregate used are expanded glass, perlite and / or expanded clay. The lightweight aggregate particles are under formation of a Soda lime glass connected to this network. It is proposed to use the shaped body as an acoustic panel, in particular as a baffle, for which, however, no further instructions are given.

Die DE 100 20 955 A1 zeigt einen Formkörper, welcher ausschließlich aus miteinander versinterten Leichtzuschlagstoffen, ausgewählt aus Blähglasgranulat, Blähtongranulat oder thermisch vorexpandierten Perliten gebildet ist.The DE 100 20 955 A1 shows a shaped body which is formed exclusively of sintered together lightweight aggregates selected from expanded glass granules, expanded clay granules or thermally pre-expanded perlites.

Die Aufgabe der vorliegenden Erfindung besteht somit darin, eine Brandschutzkonstruktion aus Brandschutzplatten für Wände oder Decken von Räumen anzugeben, die neben der eigentlichen Brandschutzfunktion auch akustische Aufgaben übernehmen kann, insbesondere um relevante Schallanteile zu absorbieren und damit die Raumakustik zu verbessern.The object of the present invention is therefore to provide a fire protection structure made of fire protection panels for walls or ceilings of rooms, which can also take on acoustic tasks in addition to the actual fire protection function, in particular to absorb relevant sound components and thus to improve the room acoustics.

Die Lösung der genannten Aufgabenstellung gelingt mit einer Brandschutzkonstruktion nach Anspruch 1.The solution of the above problem is achieved with a fire protection structure according to claim 1.

Eine erfindungsgemäße Brandschutzkonstruktion aus Brandschutzplatten eignet sich insbesondere für die Anordnung an Wänden oder Decken von Räumen. Die durch die Brandschutzplatten gebildete Fläche ist entlang mehrerer Linien unterbrochen. An diesen Unterbrechungen ist zwischen benachbarten Brandschutzplatten jeweils ein nicht brennbares, die Brandschutzanforderungen ebenso erfüllendes, langgestrecktes Schallabsorberelement eingesetzt. Eine Absorptionsfläche des Schallabsorberelements liegt im Wesentlichen in einer Ebene mit der zum Rauminneren gerichteten Oberfläche der Brandschutzplatten. Vorzugsweise liegt die Absorptionsfläche also in der Ebene der Oberfläche der Brandschutzplatten, um einen geschlossenen optischen Eindruck zu vermitteln und keine unnötigen Angriffskanten für Hitzeeinwirkung zu bieten. Auf einen geringfügigen Höhenversatz (von beispielsweise 5%-10% der Dicke der Brandschutzplatten) kommt es dabei jedoch offensichtlich nicht an.A fire protection structure according to the invention made of fire protection boards is particularly suitable for the arrangement on walls or ceilings of rooms. The surface formed by the fire protection plates is interrupted along several lines. At these interruptions, a non-flammable, the fire protection requirements equally fulfilling, elongated sound absorber element is inserted between adjacent fire protection boards. An absorption surface of the sound absorber element lies substantially in a plane with the surface of the fire protection plates facing the interior of the room. Preferably, therefore, the absorption surface is in the plane of the surface of the fire protection boards to give a closed visual impression and no unnecessary attack edges to provide for heat exposure. At a slight height offset (of, for example, 5% -10% of the thickness of the fire protection boards), but it obviously does not matter.

Das erfindungsgemäß verwendete Schallabsorberelement zeichnet sich einerseits dadurch aus, dass es zum leichten Einbau in eine Wand- oder Deckenkonstruktion aus Brandschutzplatten geeignet ist. Dazu besitzt es ein langgestrecktes Trägerhohlprofil, welches an zwei gegenüberliegenden Längsseiten nach außen ragende Befestigungsabschnitte besitzt, die der Befestigung an jeweils angrenzenden Brandschutzplatten dienen. An einer Vorderseite des Trägerhohlprofils ist eine sich in Längsrichtung erstreckende Aussparung vorgesehen, die sich in den inneren Hohlraum des Trägerhohlprofils öffnet. Diese Aussparung kann die gesamte Länge und Breite der Vorderseite einnehmen, sodass das Trägerhohlprofil einen U-förmigen Querschnitt mit seitlich angebrachten Befestigungsabschnitten aufweist. Die an der Vorderseite verlaufende Aussparung kann alternativ als Nut oder Schlitz in eine Wandungsfläche eingebracht sein, sodass an den Rändern der Vorderseite schmale Wandabschnitte verbleiben. Das Schallabsorberelement umfasst weiterhin einen Absorberstreifen aus einem schallabsorbierenden, nicht brennbaren Material, welcher im Trägerhohlprofil befestigt ist und eine Absorptionsfläche besitzt, die in der Ebene der Aussparung des Trägerhohlprofils frei liegt und auch nach dem Einbau des Schallabsorberelements nicht von Brandschutzplatten überdeckt ist. Die Befestigung des Absorberstreifens erfolgt z.B. durch Klemmen oder Kleben mit einem feuerbeständigen Kleber.The sound absorber element used according to the invention is characterized on the one hand by the fact that it is suitable for easy installation in a wall or ceiling construction of fire protection boards. For this purpose, it has an elongated carrier hollow profile, which has on two opposite longitudinal sides outwardly projecting attachment sections, which serve the attachment to each adjacent fire protection panels. At a front side of the carrier hollow profile, a longitudinally extending recess is provided, which opens into the inner cavity of the carrier hollow profile. This recess can occupy the entire length and width of the front, so that the carrier hollow profile has a U-shaped cross section with laterally mounted attachment portions. The recess extending at the front can alternatively be introduced as a groove or slot in a wall surface, so that narrow wall sections remain at the edges of the front side. The sound absorber element further comprises an absorber strip of a sound-absorbing, non-combustible material which is fixed in the carrier hollow profile and has an absorption surface which is exposed in the plane of the recess of the carrier hollow profile and is not covered by fire protection plates even after the installation of the sound absorber element. The attachment of the absorber strip takes place e.g. by clamping or gluing with a fire-resistant adhesive.

Um sowohl die akustische als auch die Brandschutzfunktion besonders effizient zu erfüllen, besteht der Absorberstreifen des Schallabsorberelements vorzugsweise aus einem glasbasierten, akustisch wirksamen Schaumstoff. Es handelt sich insbesondere um einen nicht duktilen, mineralischen Schaumstoff, der eine hohe Festigkeit wie etwa ein im Bauwesen verarbeiteter Stein, Ziegelstein oder Betonstein aufweisen kann. Dadurch, dass es sich um einen Schaumstoff handelt, ist eine Oberflächenstruktur und bei vorteilhafter Gestaltung auch eine durchgehende Luftwege belassende Struktur gegeben, die sich insbesondere akustisch vorteilhaft auswirkt, nämlich im Sinne eines Schallschluckens. Da zugleich eine diffusionsoffene Struktur des Abstandshalters gegeben ist, ergeben sich auch vorteilhafte Eigenschaften im Hinblick auf einen Abtransport von Feuchte bspw. aus dem Raum, der an die offene Absorptionsfläche des Schallabsorberelements angrenzt.In order to fulfill both the acoustic and the fire protection function particularly efficiently, the absorber strip of the sound absorber element preferably consists of a glass-based, acoustically effective foam. In particular, it is a non-ductile mineral foam which may have high strength such as a stone, brick or concrete block processed in construction. Because it is a foam, there is a surface structure and, in the case of an advantageous design, a structure leaving a continuous airway, which in particular has an acoustically advantageous effect, namely in the sense of sound swallowing. Since at the same time a diffusion-open structure of the spacer is given, advantageous properties also result with regard to a removal of moisture, for example, from the space adjacent to the open absorption surface of the sound absorber element.

In einer bevorzugten Ausführungsform ist das Trägerhohlprofil als Schiene mit einem U-förmigen Querschnitt gebildet. Der Absorberstreifen weist dann eine im Querschnitt rechteckige oder quadratische Struktur auf und entspricht in seiner Breite der vollständig offenen Vorderseite des Profils. Die freiliegende Absorptionsfläche ist dann diejenige Fläche, welche im eingebauten Zustand nach außen, d.h. zu dem akustisch zu beeinflussenden Raum frei liegt. So kann besonders günstig durch den Schaumstoff die gewünschte Schallwirksamkeit erreicht werden.In a preferred embodiment, the carrier hollow profile is formed as a rail with a U-shaped cross-section. The absorber strip then has a rectangular or square cross-section structure and corresponds in width to the fully open front of the profile. The exposed absorption area is then the area which, when installed, faces outwards, i. is exposed to the acoustically influencing space. Thus, the desired sound efficiency can be achieved particularly favorable by the foam.

Gemäß einer abgewandelten Ausführungsform ist der Schaumstoff durch ein anderes geeignetes Schall absorbierendes Material ersetzt. In dem Trägerhohlprofil können weiche und ggf. verformbare Materialien, wie z.B. Steinwolle oder Mineralwolle zur Schallabsorption verwendet werden und den Absorberstreifen bilden.According to a modified embodiment, the foam is replaced by another suitable sound absorbing material. In the carrier hollow profile soft and possibly deformable materials, such as rock wool or mineral wool can be used for sound absorption and form the absorber strip.

Das Trägerhohlprofil besteht vorzugsweise aus Metall, beispielsweise Stahlblech. Gemäß einer bevorzugten Ausführungsform besitzt das Trägerhohlprofil nach Innen gerichtete Halteelemente, die zur Befestigung des Absorberstreifens in diesen eingreifen und/oder Klemmkräfte auf diesen ausüben.The carrier hollow profile is preferably made of metal, for example steel sheet. According to a preferred embodiment, the carrier hollow profile has inwardly directed holding elements which engage in the latter for fastening the absorber strip and / or exert clamping forces thereon.

Die sich nach Außen erstreckenden Befestigungsabschnitte des Trägerhohlprofils sind vorzugsweise als an den gegenüberliegenden Längsseiten verlaufende Materialstreifen ausgebildet, die im wesentlichen senkrecht auf den Längsseiten stehen. Die Befestigungsabschnitte können einstückig mit der Wandung des Profils hergestellt sein oder z.B. durch Punktschweißen, Nieten oder dergleichen befestigt sein.The outwardly extending mounting portions of the carrier hollow profile are preferably formed as running on the opposite longitudinal sides of material strips, which are substantially perpendicular to the longitudinal sides. The attachment portions may be made integral with the wall of the profile, or e.g. be secured by spot welding, rivets or the like.

Erfindungsgemäß wird das Schallabsorberelement bevorzugt derart in der Brandschutzkonstruktion eingebaut, dass zumindest die Absorptionsfläche in der fertigen Konstruktion frei liegt. Alternativ dazu kann die Absorptionsfläche aber auch von einer weiteren Materialschicht, die vorzugsweise akustisch stark durchlässig ist, abgedeckt sein, beispielsweise um sie vor Umwelteinflüssen zu schützen oder um eine optische Gestaltung zu ermöglichen.According to the invention, the sound absorber element is preferably installed in the fire protection structure such that at least the absorption surface is exposed in the finished construction. Alternatively, however, the absorption surface may also be covered by a further material layer, which is preferably acoustically highly permeable, for example in order to protect it against environmental influences or to enable an optical design.

Bei einer vorteilhaften Ausführung besteht der den Absorberstreifen bildende akustisch wirksame Schaumstoff aus Glasteilen bzw. -partikeln, die mittels eines Bindemittels miteinander verbunden sind. Hierbei kann das Bindemittel ein hydraulisches, auch hydraulisch abbindendes Bindemittel sein. Vorzugsweise handelt es sich um ein Bindemittel auf der Basis von Zement oder Keramik. Auch ist es zweckmäßig, wenn das Bindemittel einen Faseranteil aufweist. Nicht zuletzt kann ein solcher Faseranteil die ggf. gewünschte Diffusionsoffenheit sicherstellen oder diese unterstützen. Auch kann der Faseranteil mit zur akustischen Wirksamkeit beitragen. Bei den Glaspartikeln handelt es sich vorzugsweise um Blähglasgranulat, welches mithilfe des Bindemittels oder auch durch einen Sinterprozess zu dem akustisch wirksamen Schaumstoff kompaktiert ist.In an advantageous embodiment, the acoustically effective foam forming the absorber strip consists of glass parts or particles which are connected to one another by means of a binder. In this case, the binder may be a hydraulic, also hydraulically setting binder. It is preferably a binder based on cement or ceramic. It is also expedient if the binder has a fiber content. Last but not least, such a fiber content can ensure the possibly desired diffusion openness or support it. Also, the fiber content contribute to the acoustic effectiveness. The glass particles are preferably expanded glass granules which are compacted with the aid of the binder or else by a sintering process to form the acoustically effective foam.

Das Schallabsorberelement weist bevorzugt einen rechteckigen oder quadratischen, ggf. auch trapezförmigen oder dreieckförmigen Querschnitt auf. Ein solcher Querschnitt bildet eine ebene Absorptionsfläche aus, die in die Sichtseite bzw. die akustisch zu beeinflussende Außenseite der Brandschutzkonstruktion integriert ist. Diese Absorptionsfläche ist dabei in der Regel nicht plan ausgebildet, sondern durch die Struktur des Schalls absorbierenden Materials geprägt. Wie bereits ausgeführt, ist die Absorptionsfläche, welche die Sichtseite bildet bzw. in die Außenseite einer Betondecke integriert ist, auch diejenige Fläche, die nicht oder nur entlang ihrer Kanten vom Material des Trägerhohlprofils überdeckt ist.The sound absorber element preferably has a rectangular or square, possibly also trapezoidal or triangular cross section. Such a cross-section forms a flat absorption surface, which is integrated into the visible side or the outside of the fire protection structure to be acoustically influenced. As a rule, this absorption surface is not flat, but is characterized by the structure of the sound-absorbing material. As already stated, the absorption surface, which forms the visible side or is integrated into the outside of a concrete pavement, is also that surface which is not covered or only along its edges by the material of the carrier hollow profile.

Es ist besonders vorteilhaft, wenn die Absorptionsfläche zunächst durch eine selbstklebende Folie oder ähnliche Schutzschicht abgedeckt ist. Diese Schutzschicht schützt die Absorptionsfläche während der Verarbeitung vor Verschmutzungen und kann nach endgültiger Fertigstellung der Brandschutzkonstruktion entfernt werden.It is particularly advantageous if the absorption surface is initially covered by a self-adhesive film or similar protective layer. This protective layer protects the absorbing surface from contamination during processing and can be removed after final completion of the fire protection construction.

Bevorzugt ist das Schallabsorberelement in der oben beschriebenen Weise ausgebildet. Die am Trägerhohlprofil des Schallabsorberelements angebrachten Befestigungsabschnitte liegen vorzugsweise an der Rückseite der Brandschutzplatten an, sodass sie von der Rauminnenseite nicht sichtbar sind. Die Position der Befestigungsabschnitte ist dabei so gewählt, dass die frei liegende Absorptionsfläche im Wesentlichen in einer Ebene mit der Oberfläche der Brandschutzplatten liegt, sodass sich eine geschlossene Fläche der Wand- oder Deckenkonstruktion ergibt. Die Dicke des Schallabsorberelements ist beispielsweise so gewählt, dass sie insgesamt der Dicke der Brandschutzplatten entspricht, sodass hinter den Brandschutzplatten keine zusätzlichen Hohlräume für den Einbau der Schallabsorberelemente benötigt werden. Im Falle der Verwendung von Gipskartonplatten, die zu Brandschutzzwecken häufig doppellagig angebracht werden, kann das Schallabsorberelement beispielsweise eine Dicke von etwa 25 mm aufweisen.Preferably, the sound absorbing element is formed in the manner described above. The fastening sections attached to the carrier hollow profile of the sound absorber element preferably rest on the rear side of the fire protection plates so that they are not visible from the interior of the room. The position of the attachment portions is chosen so that the exposed absorption surface substantially in one Level with the surface of the fire protection boards, resulting in a closed surface of the wall or ceiling construction. The thickness of the sound absorber element is selected, for example, such that it corresponds overall to the thickness of the fire protection boards, so that behind the fire protection boards no additional cavities for the installation of the sound absorber elements are needed. In the case of the use of plasterboard, which are often mounted double-layered for fire protection purposes, the sound-absorbing element may for example have a thickness of about 25 mm.

Beim Aufbau von Brandschutzkonstruktionen mit mehrlagigen Brandschutzplatten lassen sich die Befestigungsabschnitte des Schallabsorberelements auch zwischen den einzelnen Lagen einsetzen, womit die Montage erleichtert wird.When constructing fire protection structures with multi-layer fire protection plates, the fastening sections of the sound absorber element can also be used between the individual layers, whereby the assembly is facilitated.

Eine bevorzugte Ausführungsform der Brandschutzkonstruktion zeichnet sich dadurch aus, dass das Trägerhohlprofil des Schallabsorberelements an seinen Längsseiten und seiner Rückseite ebenfalls mit Brandschutzmaterial verkleidet ist. Die originär bestehende Brandschutzwirkung des Absorberstreifens im Schallabsorberelement wird dadurch weiter verstärkt. Bei besonders hohen Brandschutzanforderungen wird durch diese Verkleidung eine geschlossene Brandschutzfläche sichergestellt.A preferred embodiment of the fire protection structure is characterized in that the carrier hollow profile of the sound absorbing element is also clad on its longitudinal sides and its back with fire protection material. The originally existing fire protection effect of the absorber strip in the sound absorber element is further enhanced. For particularly high fire protection requirements, this enclosure ensures a closed fire protection area.

Die Abmessungen der einzelnen Schallabsorberelemente sowie deren Beabstandung beim Einbau in die Brandschutzkonstruktion sind vorzugsweise so gewählt, dass die frei liegenden Absorptionsflächen der Schallabsorberelemente etwa 15% bis 30% der Gesamtfläche der Brandschutzkonstruktion einnehmen. Es hat sich gezeigt, dass die damit erzielbare akustische Wirkung ausreichend hoch ist, um etwa 70% bis 80% der Schallabsorption einer vollständigen Bedeckung der zur Verfügung stehenden Fläche mit Schall absorbierendem Material erzielbar ist.The dimensions of the individual sound absorber elements and their spacing when installed in the fire protection structure are preferably chosen so that the exposed absorption surfaces of the sound absorber elements occupy about 15% to 30% of the total area of the fire protection structure. It has been found that the acoustic effect achievable with it is sufficiently high, by about 70% to 80% of the sound absorption a complete coverage of the available area with sound absorbing material can be achieved.

Die akustisch wirksamen Absorptionsflächen können gestrichen oder mit einem offenporigen Putz beschichtet werden. Dabei ist sicherzustellen, dass eine Beschichtung akustisch durchlässig bleibt, damit die Schall absorbierenden Eigenschaften erhalten bleiben.The acoustically effective absorption surfaces can be painted or coated with an open-pored plaster. It must be ensured that a coating remains acoustically permeable so that the sound-absorbing properties are retained.

Für die Herstellung des Schallabsorptionselementes eigenen sich verschiedene Methoden. Vorzugsweise kann der glasbasierte akustisch wirksame Schaumstoff durch herkömmliche Sinterverfahren erzeugt werden. Die Trägehohlprofile lassen sich leicht durch Tiefziehen oder Biegen herstellen. Eine Wandstärke von 1-3 mm ist besonders bevorzugt. Die Trägerhohlprofile können bei entsprechend stabiler Auslegung selbst statische Aufgaben für die Brandschutzkonstruktion übernehmen und beispielsweise die sonst üblichen Deckenplattenschienen oder die Ständer von Leichtbauwänden ersetzen. Der Absorberstreifen wird im Profil mechanisch befestigt oder z.B. eingeklebt.Different methods are suitable for the production of the sound absorption element. Preferably, the glass-based acoustically-effective foam may be produced by conventional sintering techniques. The hollow housing profiles can be easily produced by deep drawing or bending. A wall thickness of 1-3 mm is particularly preferred. The carrier hollow sections can take on static tasks for the fire protection construction with a correspondingly stable design and replace, for example, the usual ceiling slab rails or the stand of lightweight walls. The absorber strip is mechanically fastened in the profile or e.g. glued.

Weitere Vorteile, Einzelheiten und Weiterbildungen der Erfindung werden nachfolgend an einem bevorzugten Ausführungsbeispiel erläutert, unter Bezugnahme auf die beigefügte Zeichnung. Es zeigt:

Fig. 1
eine Schnittansicht einer erfindungsgemäßen Brandschutzkonstruktion mit einem Schallabsorberelement.
Further advantages, details and developments of the invention are explained below with reference to a preferred embodiment, with reference to the accompanying drawings. It shows:
Fig. 1
a sectional view of a fire protection structure according to the invention with a sound absorber element.

Fig. 1 zeigt eine Querschnittsansicht einer erfindungsgemäßen Brandschutzkonstruktion. Die Brandschutzkonstruktion umfasst ein Schallabsorberelement 1, an welches beidseitig Brandschutzplatten 2 angrenzen. Die Brandschutzplatten 2 sind in herkömmlicher Weise an einer Ständerkonstruktion, an abgehängten Tragschienen oder anderen den Wand- oder Deckenaufbau stabilisierenden Bauelementen befestigt. Die Brandschutzplatten 2 können einlagig (links des Schallabsorberelements dargestellt) oder mehrlagig (rechts des Schallabsorberelements dargestellt) angeordnet sein. Die Brandschutzplatten 2 sind in ihrer Haupterstreckungsebene unterbrochen, um das Schallabsorberelement 1 aufzunehmen. In einer Brandschutzkonstruktion sind üblicherweise mehrere parallel verlaufende Schallabsorberelemente angeordnet, beispielsweise in einem Abstand von jeweils 30 bis 70 cm. Fig. 1 shows a cross-sectional view of a fire protection structure according to the invention. The fire protection structure comprises a sound absorber element 1, to which fire protection plates 2 adjoin on both sides. The fire protection panels 2 are in conventionally attached to a stand construction, to suspended mounting rails or other stabilizing the wall or ceiling structure components. The fire protection panels 2 can be arranged in one layer (shown left of the sound absorber element) or in multiple layers (shown on the right of the sound absorber element). The fire protection panels 2 are interrupted in their main extension plane to accommodate the sound absorbing element 1. In a fire protection construction usually several parallel sound absorbing elements are arranged, for example at a distance of 30 to 70 cm.

Das Schallabsorberelement 1 besitzt ein Trägerhohlprofil 5, in dessen Hohlraum ein Absorberstreifen 6 angeordnet ist. In der dargestellten Ausführungsform ist das Trägerhohlprofil 5 durch eine U-förmige Blechschiene gebildet, die zwei Längsseiten und eine Rückseite besitzt. Die Vorderseite des Trägerhohlprofils ist offen, sodass der Absorberstreifen 6 an dieser Vorderseite freiliegt. Die freiliegende Fläche des Absorberstreifens 6 bildet eine Absorptionsfläche 7, die zu dem akustisch zu beeinflussenden Raum gerichtet ist. Die Absorptionsfläche 7 liegt vorzugsweise in einer Ebene mit der Oberfläche der angrenzenden Brandschutzplatten 2.The sound absorber element 1 has a carrier hollow profile 5, in whose cavity an absorber strip 6 is arranged. In the illustrated embodiment, the carrier hollow profile 5 is formed by a U-shaped sheet metal rail, which has two longitudinal sides and a rear side. The front of the carrier hollow profile is open, so that the absorber strip 6 is exposed at this front. The exposed surface of the absorber strip 6 forms an absorption surface 7, which is directed to the space to be acoustically influenced. The absorption surface 7 is preferably in a plane with the surface of the adjacent fire protection panels. 2

Der Absorberstreifen 6 besteht aus einem akustisch wirksamen, nämlich Schall absorbierenden Werkstoff in der Art eines Schaumstoffs. Vorzugsweise handelt es sich um einen mineralischen Werkstoff, der einen Hartschaumstoff bildet. Insbesondere besteht der Absorberstreifen 6 aus glasbasiertem, akustisch wirksamem und diffusionsoffenem Schaumstoff. Einzelne Glasteilchen sind dafür durch ein Bindemittel, das zudem einen Faseranteil aufweisen kann, miteinander zu einer Riegelstruktur verbunden. Bei dem Ausführungsbeispiel kann die Kantenlänge der Absorberstreifen 6 bspw. im Bereich von 2 bis 8 cm liegen Ersichtlich ist hier ein quadratischer Querschnitt gewählt. Andere Querschnitte des Absorberstreifens 6 sind ebenso denkbar (z.B. dreieckig, oval, rund) und können für spezielle Anwendungen aufgrund ihrer akustischen Eigenschaften vorteilhaft sein.The absorber strip 6 consists of an acoustically effective, namely sound-absorbing material in the manner of a foam. Preferably, it is a mineral material that forms a rigid foam. In particular, the absorber strip 6 consists of glass-based, acoustically active and diffusion-open foam. Individual glass particles are connected by a binder, which may also have a fiber content, together to form a bar structure. In the embodiment, the edge length For example, the absorber strip 6 can be in the range of 2 to 8 cm. Here, a square cross-section is clearly chosen. Other cross-sections of the absorber strip 6 are also conceivable (eg triangular, oval, round) and may be advantageous for special applications due to their acoustic properties.

Die Länge der Absorberstreifen 6 kann etwa im Bereich von 0,5 bis 3 m liegen. Für den Fachmann ist verständlich, dass die Abmessungen und die Formgebung der Abstandshalter nahezu beliebig an den jeweiligen Anwendungsfall angepasst werden können. Entscheidend für die Erfindung ist, dass der Absorberstreifen 6 aus einem Material besteht, welches gut Schall absorbierend wirkt und gleichzeitig gute Brandschutzeigenschaften aufweist.The length of the absorber strip 6 may be approximately in the range of 0.5 to 3 m. It is understandable to the person skilled in the art that the dimensions and the shape of the spacers can be adapted almost arbitrarily to the respective application. Decisive for the invention is that the absorber strip 6 consists of a material which has a good sound absorbing effect and at the same time has good fire protection properties.

Der Absorberstreifen 6 ist bei der dargestellten Ausführungsform durch zweiseitig gestanzte und nach innen gebogene Halteelemente 10 im Trägerhohlprofil 5 befestigt. Nach dem Einsetzen des Absorberstreifens 6 werden die Halteelemente 10 von den Längsseiten des Trägerhohlprofils nach innen gepresst, sodass sie den Absorberstreifen 6 festklemmen und/oder teilweise in diesen eindringen. Alternativ dazu können die Halteelemente durch Stifte, Schrauben, Nieten oder dergleichen gebildet werden, die durch die Wandung des Trägerhohlprofils in den Absorberstreifen eingreifen. Ebenso ist es möglich, den Absorberstreifen im Profil einzukleben oder an der Vorderseite des Trägerprofils Haltekanten vorzusehen, die ein Herausfallen des Absorberstreifens verhindern.The absorber strip 6 is fastened in the illustrated embodiment by means of two-sided punched and inwardly bent holding elements 10 in the carrier hollow profile 5. After insertion of the absorber strip 6, the holding elements 10 are pressed by the longitudinal sides of the carrier hollow profile inwards, so that they clamp the absorber strip 6 and / or partially penetrate into this. Alternatively, the holding elements may be formed by pins, screws, rivets or the like, which engage through the wall of the carrier hollow profile in the absorber strip. It is also possible to glue the absorber strip in the profile or provide at the front of the carrier profile holding edges that prevent falling out of the absorber strip.

Für besonders hohe Brandfestigkeit können an der Rückseite des Trägerhohlprofils und gegebenenfalls auch an Abschnitten der Längsseiten weitere Brandschutzplatten 11 angebracht werden. Um das Schallabsorberelement 1 in einer Brandschutzkonstruktion zu befestigen, sind an den Längsseiten Befestigungsabschnitte 12 vorgesehen, die bei der dargestellten Ausführungsform durch lang gestreckte Materialstreifen gebildet sind. Bei stabiler Gestaltung der Trägerhohlprofile können diese eine tragende Funktion für die Brandschutzplatten übernehmen.For particularly high fire resistance further fire protection plates 11 can be attached to the back of the support hollow profile and optionally also on sections of the longitudinal sides. In order to fix the sound absorbing element 1 in a fire protection structure, fastening sections 12 are provided on the longitudinal sides, which are formed in the illustrated embodiment by elongated strips of material. With stable design of the carrier hollow profiles, these can assume a supporting function for the fire protection panels.

Bei der Herstellung der Brandschutzkonstruktion wird beispielsweise bei einem mehrlagigen Aufbau eine untere Brandschutzplatte 2 angeordnet, an welcher die Befestigungsabschnitte 12 des Schallabsorberelements verschraubt werden können. Äquivalente Befestigungsmethoden sind ebenso möglich. Die Befestigungsabschnitte 12 sind so positioniert, dass das Schallabsorberelement über die untere Brandschutzplatte 2 hinausragt, sodass eine obere Brandschutzplatte aufgebracht werden kann, die ebenfalls bis an die Längsseiten des Trägerhohlprofils heranreicht und die Befestigungsabschnitte vollständig abdeckt. Die Oberflächen der oberen Brandschutzplatte und des Absorptionsstreifens 6 liegen dann im Wesentlichen in einer Ebene.In the manufacture of the fire protection structure, a lower fire protection plate 2 is arranged, for example, in a multi-layer structure, to which the fastening portions 12 of the sound absorber element can be screwed. Equivalent attachment methods are also possible. The attachment portions 12 are positioned so that the sound absorber element projects beyond the lower fire protection plate 2, so that an upper fire protection plate can be applied, which also extends to the longitudinal sides of the support hollow profile and completely covers the attachment portions. The surfaces of the upper fire protection plate and the absorption strip 6 then lie substantially in one plane.

Wird nur eine einschichtige Brandschutzplatte verwendet (rechts vom Schallabsorberelement dargestellt), befindet sich diese oberhalb des Befestigungsabschnitts 12, so dass dieser ebenfalls abgedeckt ist.If only a single-layer fire protection panel is used (shown to the right of the sound absorber element), it is located above the fastening section 12 so that it is likewise covered.

Der Fachmann wird anhand der vorangegangenen Beschreibung erkennen, dass die Schallabsorberelemente auf unterschiedliche Weise mit den Brandschutzplatten verbunden werden können. Für eine besondere Festigkeit können die Schallabsorberelemente darüber hinaus mit weiteren Bauelementen, beispielsweise der Tragkonstruktion der Wand/Decke verbunden werden.The skilled person will recognize from the foregoing description that the sound absorber elements can be connected in different ways with the fire protection panels. For a particular strength, the sound absorber elements can also be connected to other components, such as the supporting structure of the wall / ceiling.

BezugszeichenlisteLIST OF REFERENCE NUMBERS

11
SchallabsorberelementSound absorber element
22
BrandschutzplattenFire Protection Boards
33
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44
--
55
TrägerhohlprofilSupport hollow profile
66
Absorberstreifenabsorber strip
77
Absorptionsflächeabsorption area
88th
--
99
--
1010
Halteelementretaining element
1111
weitere Brandschutzplattenfurther fire protection boards
1212
Befestigungsabschnittattachment section

Claims (13)

  1. A fire-protection construction comprising fire-protection panels (2) for walls or ceilings of spaces, characterised in that the surface formed by the fire-protection panels (2) is interrupted along several lines and on these interruptions between adjacent fire-protection panels (2) in each case a non-combustible elongated sound-absorber element (1) is inserted, with an absorption surface (7) that is essentially situated in a plane with the surface of the fire-protection panels (2), which are facing the interior of the space, wherein the sound-absorber element (1) comprises:
    • an elongated hollow support profile (5) that on two opposite longitudinal sides comprises outwards-projecting fastening portions (12) for fastening to the respectively adjoining fire-protection panels (2), and at its front comprises an opening that extends in the longitudinal direction, which opening opens into the hollow space of the hollow support profile (5);
    • an absorber strip (6) comprising a soundabsorbing non-combustible material, which absorber strip (6) is fastened in the hollow support profile (5) and comprises an absorption surface (7) that in the plane of the opening of the hollow support profile (5) is free and that is not covered by the fire-protection panels (2) even after installation of the sound-absorber element (1).
  2. The fire-protection construction according to claim 1, characterised in that the sound absorbing material of the absorber strip (6) is a non-ductile foam material, in particular a glass-based foam material, which in particular comprises expanded-glass granulate.
  3. The fire-protection construction according to claim 1 or 2, characterised in that the hollow support profile (5) comprises a U-shaped cross section.
  4. The fire-protection construction according to any one of claims 1 to 3, characterised in that the hollow support profile (5) comprises metal.
  5. The fire-protection construction according to any one of claims 1 to 4, characterised in that the hollow support profile (5) comprises inwards-directed retaining elements (10) that for the purpose of fastening the absorber strip (6) engage the absorber strip (6) and/or exert clamping forces on it.
  6. The fire-protection construction according to any one of claims 1 to 5, characterised in that the fastening portions (12) of the hollow support profile (5) are designed as material strips extending on the opposing longitudinal sides, which material strips are essentially arranged so as to be perpendicular on the longitudinal sides.
  7. The fire-protection construction according to any one of claims 1 to 6, characterised in that the fastening portions (12) of the sound-absorber element (1) rest against the rear of the fire-protection panels (2) facing the interior of the space.
  8. The fire-protection construction according to one of claims 1 or 7, characterised in that the fastening portions (12) of the sound-absorber element (1) are screwed, riveted or bonded to the fire-protection panels (2).
  9. The fire-protection construction according to any one of claims 1 to 8, characterised in that the hollow support profile (5) of the sound-absorber element (1) at its longitudinal sides and at its rear on the outside is clad with further fire-protection panels (11).
  10. The fire-protection construction according to any one of claims 1 to 9, characterised in that the fastening portions (12) of the sound-absorber element (1) in each case are clamped between two fire-protection panels (2) that are arranged so as to be parallel to each other.
  11. The fire-protection construction according to any one of claims 1 to 10, characterised in that the spacing, length and width of the sound-absorber elements (1) are selected in such a manner that they take up 15% to 30% of the surface of the fire-protection construction.
  12. The fire-protection construction according to any one of claims 1 to 11, characterised in that the hollow support profiles (5) of the sound-absorber elements (1) carry out a structural function in relation to the fire-protection panels (2) fastened thereto.
  13. The fire-protection construction according to any one of claims 1 to 12, characterised in that the absorber strips (6) are bonded in and/or clamped in the hollow support profile (5).
EP11707615.8A 2010-02-23 2011-02-17 Fire protection construction composed of fire protection panels and sound absorber elements Active EP2539518B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE201020000245 DE202010000245U1 (en) 2010-02-23 2010-02-23 Sound absorber element for installation in a fire protection structure made of fire protection boards
PCT/EP2011/052355 WO2011104164A1 (en) 2010-02-23 2011-02-17 Fire protection construction composed of fire protection panels and sound absorber elements

Publications (2)

Publication Number Publication Date
EP2539518A1 EP2539518A1 (en) 2013-01-02
EP2539518B1 true EP2539518B1 (en) 2014-03-19

Family

ID=42282935

Family Applications (1)

Application Number Title Priority Date Filing Date
EP11707615.8A Active EP2539518B1 (en) 2010-02-23 2011-02-17 Fire protection construction composed of fire protection panels and sound absorber elements

Country Status (4)

Country Link
EP (1) EP2539518B1 (en)
DE (1) DE202010000245U1 (en)
DK (1) DK2539518T3 (en)
WO (1) WO2011104164A1 (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102855871A (en) * 2011-07-01 2013-01-02 湖北省风机厂有限公司 Sound insulation equipment
DK3029313T3 (en) * 2014-12-04 2018-05-07 Siemens Ag Strake for a windmill tower
CN110173071A (en) * 2019-05-10 2019-08-27 潘旭鹏 A kind of pin-connected panel partition panel component, installation method and application
DE102021129733A1 (en) 2021-11-15 2023-05-17 B&O Bauholding GmbH Installation package, wall panel with installation package, and manufacturing method therefor

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3444881A1 (en) 1984-12-08 1986-06-12 Wolfgang 4600 Dortmund Nohlen Sound-insulating building-wall and/or building-floor erection
EP0546279A1 (en) * 1991-12-11 1993-06-16 Gema Metalldecken Ag Cladding panel
DE9321610U1 (en) 1993-03-24 2000-12-14 Sto Ag Acoustic ceiling made of sound-absorbing lightweight building boards
DE4408177C2 (en) 1994-03-11 1997-05-28 Lias Franken Leichtbau Gmbh Noise protection wall part
DE19653807A1 (en) 1996-12-21 1998-06-25 Dennert Poraver Gmbh Water resistant mineral acoustic insulation board
DE19712835C3 (en) 1997-03-26 2002-05-08 Fraunhofer Ges Forschung Moldings made of a light material, process for their production and their use
DE10020955A1 (en) 2000-04-28 2001-11-22 Fraunhofer Ges Forschung Molded body used as sound and heat insulation is formed from light aggregates selected from expanded glass granules, expanded clay granules and/or thermally pre-expanded perlite sintered together
AT9850U1 (en) * 2006-02-14 2008-04-15 Tiefenthaler Michael UNTERSPARRENDÄMMPLATTE

Also Published As

Publication number Publication date
DE202010000245U1 (en) 2010-06-24
DK2539518T3 (en) 2014-06-10
EP2539518A1 (en) 2013-01-02
WO2011104164A1 (en) 2011-09-01

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