EP1362963B1 - Soundproofing panel made of FRP (Fiber-Reinforced Polymer) composite with a sound-absorbing surface characterized by parallel longitudinal strips - Google Patents

Soundproofing panel made of FRP (Fiber-Reinforced Polymer) composite with a sound-absorbing surface characterized by parallel longitudinal strips Download PDF

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Publication number
EP1362963B1
EP1362963B1 EP03009375A EP03009375A EP1362963B1 EP 1362963 B1 EP1362963 B1 EP 1362963B1 EP 03009375 A EP03009375 A EP 03009375A EP 03009375 A EP03009375 A EP 03009375A EP 1362963 B1 EP1362963 B1 EP 1362963B1
Authority
EP
European Patent Office
Prior art keywords
staves
soundproofing panel
box structure
panel according
frp
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.)
Expired - Lifetime
Application number
EP03009375A
Other languages
German (de)
French (fr)
Other versions
EP1362963A3 (en
EP1362963A2 (en
Inventor
Giuseppe Fracasso
Giorgio Bedogni
Giuseppe Casciana
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.)
SOCOTHERM INFRAVIAB Srl
Original Assignee
Socotherm Italia SpA
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Socotherm Italia SpA filed Critical Socotherm Italia SpA
Publication of EP1362963A2 publication Critical patent/EP1362963A2/en
Publication of EP1362963A3 publication Critical patent/EP1362963A3/en
Application granted granted Critical
Publication of EP1362963B1 publication Critical patent/EP1362963B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • G—PHYSICS
    • G10—MUSICAL INSTRUMENTS; ACOUSTICS
    • G10K—SOUND-PRODUCING DEVICES; METHODS OR DEVICES FOR PROTECTING AGAINST, OR FOR DAMPING, NOISE OR OTHER ACOUSTIC WAVES IN GENERAL; ACOUSTICS NOT OTHERWISE PROVIDED FOR
    • G10K11/00—Methods or devices for transmitting, conducting or directing sound in general; Methods or devices for protecting against, or for damping, noise or other acoustic waves in general
    • G10K11/16—Methods or devices for protecting against, or for damping, noise or other acoustic waves in general
    • G10K11/172—Methods or devices for protecting against, or for damping, noise or other acoustic waves in general using resonance effects
    • E—FIXED CONSTRUCTIONS
    • E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01F—ADDITIONAL WORK, SUCH AS EQUIPPING ROADS OR THE CONSTRUCTION OF PLATFORMS, HELICOPTER LANDING STAGES, SIGNS, SNOW FENCES, OR THE LIKE
    • E01F8/00—Arrangements for absorbing or reflecting air-transmitted noise from road or railway traffic
    • E01F8/0005—Arrangements for absorbing or reflecting air-transmitted noise from road or railway traffic used in a wall type arrangement
    • E01F8/0011—Plank-like elements
    • E—FIXED CONSTRUCTIONS
    • E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01F—ADDITIONAL WORK, SUCH AS EQUIPPING ROADS OR THE CONSTRUCTION OF PLATFORMS, HELICOPTER LANDING STAGES, SIGNS, SNOW FENCES, OR THE LIKE
    • E01F8/00—Arrangements for absorbing or reflecting air-transmitted noise from road or railway traffic
    • E01F8/0005—Arrangements for absorbing or reflecting air-transmitted noise from road or railway traffic used in a wall type arrangement
    • E01F8/0047—Arrangements for absorbing or reflecting air-transmitted noise from road or railway traffic used in a wall type arrangement with open cavities, e.g. for covering sunken roads
    • E01F8/0064—Perforated plate or mesh, e.g. as wall facing
    • E01F8/007—Perforated plate or mesh, e.g. as wall facing with damping material
    • 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
    • E04B1/74—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
    • E04B2001/8428—Tray or frame type panels or blocks, with or without acoustical filling containing specially shaped acoustical bodies, e.g. funnels, egg-crates, fanfolds
    • 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

Definitions

  • the present invention concerns fixed installations for absorbing noise and noise pollution coming from road and/or railway traffic and particularly it concerns a new soundproofing box panel made of FRP composite.
  • Some types of modular panel generally made of metal and/or plastic and containing sound-absorbing material, are also well known. Such panels are relatively easy to install, but do not always meet the needs, particularly as concerns durability.
  • DE 37 26 361 A discloses a soundproofing panel as set forth in the preamble of claim 1.
  • the known box structure is made up of a metal frame both sides of which are partially covered by wooden rods having a semicircular cross section.
  • the rods or staves according to the invention present the advantages to be not only weatherproof but also rigid, lightweight and easy to be mounted.
  • Figure 1 shows an axonometric projection of the new panel with a partial cross-section, while figure 2 shows a cross-section of it.
  • the new soundproofing panel comprises a box structure (S1, S2), a layer of sound-absorbing material (F), spacers (D), and parallel staves (T).
  • the box structure (S1, S2) is constituted by a profiled element (S1), substantially comprising a rear wall (S1a) with two folded edges (S1b) and two generically flat closing elements (S2) situated at either end (S1) so as to obtain a generic parallelepiped lacking one main face.
  • the profiled element (S1) preferably has its three faces (S1a,S1b) with a particular shaping; to be precise, the main face (S1a) is generically corrugated so as to make the profiled element more sturdy, while the two edges (S1b) have concave and/or convex ribbing to allow for the proper coupling of several adjacent profiled elements, or soundproofing panels.
  • the right- and left-hand closing elements (S2) are each composed of a flat part having the same shape as the cross-section of the profiled element (S1), complete with rims lying adjacent to the sides of said profiled element (S1). Moreover, each of the two closing elements (S2) has one or more holes (S2f) to allow for the run-off of any water accumulated inside the soundproofing panel due to condensation or infiltration.
  • staves comprising bands or strips suitable for partially closing this face of the box structure (S1, S2).
  • the staves (T) are arranged parallel to each other in one or more rows and their length and distance between centers are such that they cover from 20% to 80%, but preferably 40%, of the area of the open side of the box structure (S1, S2).
  • These staves (T) are arranged preferably parallel to the length of the profiled element (S1).
  • the staves (T) have a T-shaped cross-section in which the horizontal part of the T forms an arch and the vertical part is wider at the bottom end.
  • the staves (T) are preferably arranged alternately, i.e. so that each stave (T) has its cross section inverted with respect to the two staves (T) on either side.
  • Tongues (S2o) may be provided or created on the profiled element (S1) or on the closing elements (S2) for the purpose of retaining the staves (T) and keeping them correctly oriented.
  • the cavity formed between the profiled element (S1), the closing elements (S2) and the staves (T) is occupied by a layer of soundproofing material (F), preferably made of rock wool or glass wool.
  • This cavity also contains spacers (D) composed of generically flat elements having three sides shaped exactly like the cross-section of the profiled element (S1) and the fourth side shaped with tongues (Do) suitable for holding the staves (T) and keeping them correctly spaced.
  • spacers (D) composed of generically flat elements having three sides shaped exactly like the cross-section of the profiled element (S1) and the fourth side shaped with tongues (Do) suitable for holding the staves (T) and keeping them correctly spaced.
  • the new panel constructed as described above, is installed along the railway and/or road traffic route, orienting the side of the panel fitted with the staves (T) towards the source of the noise and juxtaposing the panels so that the concave and/or convex ribbing of each panel fits exactly into the convex and/or concave ribbing of the panels above and below.
  • the panels can be arranged with the staves (T) oriented at any angle, horizontal or vertical.
  • the new panel constructed as described above, prevents the propagation of noise, absorbing the sound waves instead of reflecting them back towards the source of the sound, and it does not collect any water due to condensation or rainfall.

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Multimedia (AREA)
  • Electromagnetism (AREA)
  • Devices Affording Protection Of Roads Or Walls For Sound Insulation (AREA)
  • Building Environments (AREA)
  • Laminated Bodies (AREA)
  • Reinforced Plastic Materials (AREA)

Abstract

The invention is a new soundproofing panel made of composite material, suitable for installation along railways and/or roads, comprising a box structure whose side facing the source of the noise is covered with suitably-spaced staves. The new soundproofing panel comprises an FRP box structure (S1, S2), a layer of sound-absorbing material (F), spacers (D), and parallel staves with an arched T-shaped cross-section; these staves (T) are preferably arranged alternately, i.e. so that each stave (T) has its cross-section inverted with respect to the two staves (T) on either side. <IMAGE>

Description

  • The present invention concerns fixed installations for absorbing noise and noise pollution coming from road and/or railway traffic and particularly it concerns a new soundproofing box panel made of FRP composite.
  • Along major communication routes, where the railway or road traffic is intense, a considerable amount of noise is generated, giving rise to excessive noise pollution levels. People living in the vicinity of such major traffic routes are consequently affected by noise to such a degree that they may even suffer severe consequences to their hearing or nervous system.
  • Various devices and systems have been studied and manufactured to reduce and absorb traffic noise, such as the well-known embankments constructed alongside traffic routes. Such embankments do not provide adequate protection from noise, however, they occupy a wide stretch of land on either side of the road or railway line, and their construction involves the use of costly machinery.
  • Some types of modular panel, generally made of metal and/or plastic and containing sound-absorbing material, are also well known. Such panels are relatively easy to install, but do not always meet the needs, particularly as concerns durability.
  • DE 37 26 361 A discloses a soundproofing panel as set forth in the preamble of claim 1. The known box structure is made up of a metal frame both sides of which are partially covered by wooden rods having a semicircular cross section.
  • It is an object of the invention to provide a soundproofing panel that avoids the above mentioned drawbacks of the prior art. It should not only absorb efficiently the sound waves generated by vehicles in transit without reflecting them back towards the source of the noise, and without transmitting them to the other side of the panel, but it should also have a better weather resistance compared with wooden rods and it should be easy to be mounted.
  • These and other aims are achieved by the new soundproofing panel as characterized in claim 1.
  • The rods or staves according to the invention present the advantages to be not only weatherproof but also rigid, lightweight and easy to be mounted.
  • The characterisitics of the new soundproofing panel will be better understood by the description that follows, with reference to the attached drawing, as an illustrative and not restrictive example.
  • Figure 1 shows an axonometric projection of the new panel with a partial cross-section, while figure 2 shows a cross-section of it.
  • The new soundproofing panel comprises a box structure (S1, S2), a layer of sound-absorbing material (F), spacers (D), and parallel staves (T).
  • The box structure (S1, S2) is constituted by a profiled element (S1), substantially comprising a rear wall (S1a) with two folded edges (S1b) and two generically flat closing elements (S2) situated at either end (S1) so as to obtain a generic parallelepiped lacking one main face.
  • The profiled element (S1) preferably has its three faces (S1a,S1b) with a particular shaping; to be precise, the main face (S1a) is generically corrugated so as to make the profiled element more sturdy, while the two edges (S1b) have concave and/or convex ribbing to allow for the proper coupling of several adjacent profiled elements, or soundproofing panels.
  • The right- and left-hand closing elements (S2) are each composed of a flat part having the same shape as the cross-section of the profiled element (S1), complete with rims lying adjacent to the sides of said profiled element (S1). Moreover, each of the two closing elements (S2) has one or more holes (S2f) to allow for the run-off of any water accumulated inside the soundproofing panel due to condensation or infiltration.
  • On the open face of the box structure (S1, S2) there are staves (T), comprising bands or strips suitable for partially closing this face of the box structure (S1, S2).
  • The staves (T) are arranged parallel to each other in one or more rows and their length and distance between centers are such that they cover from 20% to 80%, but preferably 40%, of the area of the open side of the box structure (S1, S2).
  • These staves (T) are arranged preferably parallel to the length of the profiled element (S1).
  • The staves (T) have a T-shaped cross-section in which the horizontal part of the T forms an arch and the vertical part is wider at the bottom end. The staves (T) are preferably arranged alternately, i.e. so that each stave (T) has its cross section inverted with respect to the two staves (T) on either side.
  • Tongues (S2o) may be provided or created on the profiled element (S1) or on the closing elements (S2) for the purpose of retaining the staves (T) and keeping them correctly oriented.
  • The cavity formed between the profiled element (S1), the closing elements (S2) and the staves (T) is occupied by a layer of soundproofing material (F), preferably made of rock wool or glass wool.
  • This cavity also contains spacers (D) composed of generically flat elements having three sides shaped exactly like the cross-section of the profiled element (S1) and the fourth side shaped with tongues (Do) suitable for holding the staves (T) and keeping them correctly spaced.
  • The new panel, constructed as described above, is installed along the railway and/or road traffic route, orienting the side of the panel fitted with the staves (T) towards the source of the noise and juxtaposing the panels so that the concave and/or convex ribbing of each panel fits exactly into the convex and/or concave ribbing of the panels above and below.
  • The panels can be arranged with the staves (T) oriented at any angle, horizontal or vertical.
  • The new panel, constructed as described above, prevents the propagation of noise, absorbing the sound waves instead of reflecting them back towards the source of the sound, and it does not collect any water due to condensation or rainfall.
  • Therefore, with reference to the above description and to the attached drawings, the following claims are put forth.

Claims (7)

  1. Soundproofing panel comprising a parallelepiped box structure (S1, S2) filled with a layer of sound absorbing material (F), wherein the side of the box structure intended to face the source of noise is open and partially covered with rods or staves (T), characterized in that the box structure (S1, S2) is of fiber reinforced polymer (FRP) and that said rods or staves (T) have a T-shaped cross section made up of an arched horizontal part and a vertical part projecting from the arched horizontal part, wherein said vertical part is wider at its free end.
  2. Soundproofing panel according to claim 1, wherein the staves (T) are arranged alternately such that each stave (T) has its cross section inverted with respect to the two staves (T) on either side of it.
  3. Soundproofing panel according to any of the preceding claims, wherein the rods or staves (T) are placed in one or more rows to cover from 20% to 80% of the surface area.
  4. Soundproofing panel according to claim 3, wherein the parallel staves (T) lying side-by-side cover 40% of the surface area.
  5. Soundproofing panel according to any of the preceding claims, wherein generically rectangular spacers (D) are mounted inside the box structure (S1, S2) having one side shaped to form tongues (Do) for retaining the staves (T) in a correct distance between them.
  6. Soundproofing panel according to any of the preceeding claims, wherein tongues (S2o) are provided or created on the box structure (S1, S2) for holding the staves (T) and maintaining their correct orientation.
  7. Soundproofing panel according to any of the preceeding claims, wherein the underside of the box structure (S1, S2) is provided with a channel or hole (S2f) to allow outflow of water accumulated in the box structure due to condensation or infiltration.
EP03009375A 2002-04-26 2003-04-25 Soundproofing panel made of FRP (Fiber-Reinforced Polymer) composite with a sound-absorbing surface characterized by parallel longitudinal strips Expired - Lifetime EP1362963B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
IT2002PD000105A ITPD20020105A1 (en) 2002-04-26 2002-04-26 BOX SOUND ABSORBING PANEL IN FRP COMPOSITE MATERIAL (FIBER REINFORCED POLYMERS) WITH ABSORBENT SURFACE CHARACTERIZED BY DISCONT
ITPD20020105 2002-04-26

Publications (3)

Publication Number Publication Date
EP1362963A2 EP1362963A2 (en) 2003-11-19
EP1362963A3 EP1362963A3 (en) 2004-02-11
EP1362963B1 true EP1362963B1 (en) 2008-02-20

Family

ID=29267078

Family Applications (1)

Application Number Title Priority Date Filing Date
EP03009375A Expired - Lifetime EP1362963B1 (en) 2002-04-26 2003-04-25 Soundproofing panel made of FRP (Fiber-Reinforced Polymer) composite with a sound-absorbing surface characterized by parallel longitudinal strips

Country Status (5)

Country Link
EP (1) EP1362963B1 (en)
AT (1) ATE386854T1 (en)
DE (1) DE60319179D1 (en)
ES (1) ES2302523T3 (en)
IT (1) ITPD20020105A1 (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CZ304840B6 (en) * 2013-12-02 2014-11-26 Josef Žikovský Transparent slot-coupled cavity of road traffic noise reducing barrier
ES2608202B1 (en) * 2015-10-06 2017-09-29 Panacor 2000, S.L. Modular panel for acoustic screens

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1758808A (en) * 1927-06-15 1930-05-13 Fred J Sersen Means for acoustical correction and sound deadening
FR1321706A (en) * 1961-05-13 1963-03-22 Montedison Spa Improvements to heat, sound and sound absorbing panels
AT386440B (en) * 1986-08-21 1988-08-25 Forster Franz Ing Gmbh NOISE PROTECTION ELEMENT
US4821841A (en) * 1987-06-16 1989-04-18 Bruce Woodward Sound absorbing structures
JPH02274906A (en) * 1989-04-14 1990-11-09 Furukawa Electric Co Ltd:The Transparent noise insulating panel
FI92342C (en) * 1992-06-08 1994-10-25 Rautaruukki Oy noise Fences
DE9212668U1 (en) * 1992-09-21 1993-01-14 Josef Schmees Gmbh + Co. Kg, 4474 Fresenburg, De
CH688097A5 (en) * 1994-08-31 1997-05-15 Cycrollo Ag Kit for creating a soundproof wall.

Also Published As

Publication number Publication date
EP1362963A3 (en) 2004-02-11
ES2302523T3 (en) 2008-07-16
EP1362963A2 (en) 2003-11-19
ATE386854T1 (en) 2008-03-15
DE60319179D1 (en) 2008-04-03
ITPD20020105A1 (en) 2003-10-27

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