EP1445381A1 - Barrière anti-bruit - Google Patents

Barrière anti-bruit Download PDF

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Publication number
EP1445381A1
EP1445381A1 EP03002712A EP03002712A EP1445381A1 EP 1445381 A1 EP1445381 A1 EP 1445381A1 EP 03002712 A EP03002712 A EP 03002712A EP 03002712 A EP03002712 A EP 03002712A EP 1445381 A1 EP1445381 A1 EP 1445381A1
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EP
European Patent Office
Prior art keywords
construction
main panels
elements
face
posts
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.)
Withdrawn
Application number
EP03002712A
Other languages
German (de)
English (en)
Inventor
Gianni Mario Magni
Attilio Binotti
Luca Sirugo
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.)
Placo Srl
Original Assignee
Placo Srl
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 Placo Srl filed Critical Placo Srl
Priority to EP03002712A priority Critical patent/EP1445381A1/fr
Publication of EP1445381A1 publication Critical patent/EP1445381A1/fr
Withdrawn legal-status Critical Current

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Classifications

    • 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
    • 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
    • E01F8/0017—Plate-like elements

Definitions

  • the present invention relates to a noise-suppression construction to be particularly used in road structures and communications networks.
  • noise-suppression barriers the main task of which is to absorb sounds generated by vehicles in transit, and/or prevent them from propagating to the built-up areas.
  • these noise-suppression barriers of known type consist of a series of acoustic insulation elements that in turn are mutually held in place by a series of posts emerging from the ground.
  • the noise-suppression barriers of known type are usually made of wood or metal (in the last-mentioned case, the metal parts are possibly integrated with layers of sound absorbent material) and have a construction architecture substantially involving superposition of a plurality of acoustic insulation elements that are vertically piled up, upon each other, while at the end sides thereof they are linked to the posts.
  • the particular relative arrangement of the acoustic insulation elements is of little effectiveness from a structural point of view, because the acoustic insulation element positioned at the innermost point of the stack is strongly compressed by the weight of the overlying elements. This often gives rise to deformations or even bellying of the innermost elements (with adverse consequences not only as regards the aesthetic aspect, but also in terms of acoustic and structural effectiveness of the barrier itself).
  • this particular stacking typology does not appear to be practical in connection with assembling and/or disassembling of the barrier. Since the acoustic insulation elements need to be piled up by sequentially introducing them between two posts (that have been already set in the ground), use of expensive and bulky machinery is required and above all the necessary setting operations must follow a very rigid and not very adaptable sequence. At the same time, if one or part of the acoustic insulation elements is required to be replaced (due to damaging caused by said weight effects or by the impact of a vehicle against the barrier, for example), dismantling of the whole noise-suppression barrier is made necessary in order to enable the concerned panel (or panels) to be reached.
  • the noise-suppression barriers of known type are intrinsically made up of rather heavy elements; this involves the fact that both the support posts (that therefore must be sufficiently rigid and stout or in any case are to be present in a great number) and the acoustic insulation elements (that discharge their weight on one another) must endure a great fatigue; at the same time the heavy weight of the concerned components makes the barrier handling and mounting operations unfavourable. (Said barrier is unlikely to be pre-assembled and brought to the setting place). For the same reason, metal barriers hardly lend themselves to be installed in particular areas (such as bridges or overhead or elevated roads), because they involve a great increase in the load to be carried by the road structure itself.
  • the inner part of the acoustic insulation elements (that, as already said, houses a given amount of sound absorbent material, that generally consists of rock wool) is subjected to problems of corrosion, mainly of the electrolytic type.
  • noise-suppression barriers made of these materials must necessarily be grounded, to avoid accumulation of electric charges (on occurrence of storms or others, for example); in addition metal barriers act as shields for radio waves, representing a hindrance to transmissions.
  • noise-suppression barriers made of metal are subjected to great variations in sizes depending on temperature; this makes planning and construction of the barrier itself more complicated and ultimately adversely affects stability and effectiveness of same.
  • An insufficiency of acoustic insulation in the barriers of known type is also due to the fact that, taking into account the particular geometries of the junction regions, gaps or in any case empty spaces are defined within which the sound waves can pass rather easily; to obviate these inconveniences, often introduction of appropriate acoustic-seal elements is made necessary, which obviously brings about an increase in the construction complexity and costs.
  • Noise-suppression barriers made of wood have different drawbacks as well, that partly can be of the same type as those of metal barriers, but that can be also specifically connected with the nature of the material itself.
  • wood barriers can be adversely affected by humidity (so that they can swell or go out of shape in an anisotropic way), and also can be attacked by parasites, moulds and/or mushrooms. For the above reason, it is once more necessary to resort to surface protections that in any case are not 100% reliable and cause an increase in costs.
  • Wood constructions are also inflammable and at all events have a reduced duration over time; furthermore, the price of the raw material is in some cases disadvantageous from an economical point of view.
  • noise-suppression barriers of known type have an outer appearance of poor aesthetic value, and above all they cannot be integrated (and sometimes not even dissimulated) into the surrounding environment; possible additions of an aesthetic character can be made to these constructions of known type, but times and costs are considerable and above all they have a reduced duration.
  • the technical task underlying the present invention is to conceive a noise-suppression construction capable of substantially obviating the mentioned limits.
  • the present invention is an object of the present invention to conceive a noise-suppression construction having an innovative and original building architecture enabling easy assembling (and possibly a disassembling as easy as assembling); in addition, in accomplishing this technical task, the present invention is also dedicated to conceiving a noise-suppression construction where it is possible to intervene on the individual constituent elements (i.e. without the whole construction necessarily needing to be dismantled).
  • the present invention aims at making a noise-suppression construction capable of having different configurations depending on the typology of the noise source to be insulated and/or on logistic requirements: for example, it is an aim of the present invention to make a noise-suppression construction adapted to have a structure defining an acoustic insulation booth to be used to absorb and/or eliminate the noise produced by fixed noise sources for example, such as power units, compressors, motors and so on.
  • the present invention enables manufacture of a noise-suppression construction adapted to be set or laid according to complicated arrangements on the ground (and not limited to being extended in a single linear laying direction, which on the contrary disadvantageously occurs in barriers of known type).
  • the present invention aims at making a noise-suppression construction having optimal acoustic-insulation characteristics, also at the junctions between its different components; at the same time, the present invention aims at making a noise-suppression construction that has no problems of electric conductibility (so that grounding is not required and also it does not constitute a barrier for radio waves and telecommunications signals as well).
  • the present noise-suppression construction has been also conceived for the purpose of achieving an easy and cheap decorative purpose so that the visual and/or aesthetic impact with respect to the environment where the construction is located may not be strong.
  • the present invention aims at conceiving a noise-suppression construction having reduced overall costs for manufacture, setting and servicing, and a practically unlimited operating life.
  • the noise-suppression construction in accordance with the invention is generally denoted by reference numeral 1.
  • construction 1 substantially consists of a predetermined number of active elements 2 which are associable along at least one predetermined mutual-approaching direction; at the same time, construction 1 extends along a predetermined laying direction (that is practically defined by the extension direction on the ground of the construction 1 itself).
  • mutant-approaching direction it is intended the direction along which the different components of construction 1 are moved close to each other and disposed in a mutually assembled condition.
  • a particularly innovative and original aspect of the present invention is exactly represented by the particular choice of the mutual-approaching direction (that in the above described noise-suppression barriers of known type is practically given by the vertical piling direction, from top to bottom, of the sets of panels).
  • one or more of the active elements 2 can be made (at least partly) of a composite material comprising a plurality of resistant fibres buried in a matrix; depending on current requirements, it is possible to select the fibre and matrix typology so as to ensure the different mechanical features each time.
  • the active elements 2 can be made of glass fibre with a thermosetting polymeric matrix (although aramidic and/or carbon fibres can also be used).
  • the active elements 2 first of all comprise a predetermined number of main panels 2a that are mutually associable in the assembled condition of construction 1.
  • substantially these main panels 2a are elements of planar conformation (but, if wished, they can have curved portions as shown in the example in Fig. 8) and consequently they have a first face (facing a noise source under operating conditions of construction 1), a second face 4 opposite to the first face 3 and two side walls 5 extending between the first and second faces 3 and 4.
  • these main panels further comprise at least one inner gap or empty space (designed to house a given amount of sound-absorbent/acoustic insulation material such as rock wool or others, for example).
  • the major vertical extension of the main panels 2a enables piling in a vertical direction of the individual components (as seen in the known art) to be avoided; in fact, due to its important extension in height, with a single panel an important portion of the whole vertical extension of the construction 1 can be covered.
  • one or more main panels 2a (or even all of them, according to the preferred embodiment herein disclosed) comprise interlocking means 6 that are conveniently formed in the side walls 5 and are designed to interlock each main panel 2a with at least one, and preferably two adjacent main panels 2a.
  • interlocking means 6 due to the presence of the interlocking means 6, the main panels 2a are disposed close to each other in a horizontal direction and will constitute the construction 1 that practically consists of a sequence of horizontally approached, or better approachable, panels along the laying direction).
  • the interlocking means 6 is substantially active along operating directions substantially transverse (and preferably perpendicular) to the mutual-approaching and/or laying direction.
  • the mutual-approaching direction is substantially horizontal, whereas these operating directions (that, as will be also illustrated in the following, practically consist of the extension directions of the side walls 5) are substantially vertical.
  • the mutual-approaching direction and the laying direction (that, as already said, can be substantially horizontal) can even be coincident; at all events, due to the particular geometric features of the components of the present invention, assembling of the main panels 2a may also take place by inserting them along the laying direction and in a sequence that will constitute the construction 1, by making them rotate about an ideal axis comprised in the vertical plane defined by the construction 1 itself (this rotation is exemplified by arrows "F" in Fig. 5); this assembling modality is made possible due to the particular building architecture of the interlocking means 6 that will be described in more detail below.
  • the interlocking means 6 comprises a predetermined number of abutment surfaces 6a that are disposed along a predetermined geometric sequence.
  • This geometric sequence can be of any type, provided the shape of the abutment surfaces 6a belonging to a first main panel 2a matches and/or is complementary to that of the corresponding abutment surfaces 6a of a main panel 2a following or preceding such first main panel 2a (along the construction laying direction).
  • the abutment surfaces 6a can be made by a succession of flat and/or curved faces (and also by any succession of angles and/or cusps and/or sharp-cornered points), provided a perfect matching or complementarity is ensured between two sequences of abutment surfaces belonging to two main panels 2a disposed close to each other.
  • abutment surfaces 6a ensures a high modular level to the different components of construction 1; in addition a single main panel 2a carries two series of abutment surfaces 6a thereon (each of which lies on the two opposite side walls 5); thanks to maintenance of complementarity, these sets of abutment surfaces 6a are substantially identical (and this will enable mounting of panel 2a irrespective of the panel orientation, since the just described structural features give the latter a high symmetry degree).
  • the abutment surfaces comprise at least one first abutment face which is substantially transverse (and preferably perpendicular, as shown in the accompanying drawings) to at least the first face 3 (or the second face 4) of the main panel 2a; after this first abutment face there is at least one second abutment face, which on the contrary will be substantially transverse (and preferably perpendicular) to the first abutment face.
  • the second abutment face is substantially parallel to the first face 3 and the second face 4 (that are mutually parallel), whereas the first abutment face is practically perpendicular to the first and second faces 3 and 4.
  • the abutment surfaces are provided to define an abutment area; such an abutment area advantageously has a substantially stepped configuration (i.e. comprising a series of steps or at all events of solid angles of substantially convex configuration) and practically it comprises a sequence of abutment faces mutually defining a given solid angle (that can be a right angle, for example).
  • two mutually facing and adjacent abutment areas (belonging to two main panels 2a disposed in side by side relationship with, and adjacent to each other, for example) define a tortuous path that is advantageously suitable to damp and/or inhibit an acoustic energy flow between two main panels 2a (at the junction regions between the panels 2a themselves).
  • the noise-suppression construction 1 can be completely defined by a suitable number of main panels 2a; at all events, if more structural stability is wished to be given to construction 1, the presence of a predetermined number of posts 2b may be conveniently provided in the active elements 2.
  • posts 2 are associable with a given number of main panels 2a and can be linked to the ground in the assembled condition of construction 1 (practically they emerge at least partly from the ground and are partly anchored thereinto).
  • posts 2b are substantially interposed between two main panels 2a disposed in sequence along the laying direction.
  • Posts 2b can generally have a tubular or in any case prismatic conformation; conveniently the prevailing extension of these posts 2b will be along the major-side direction of the main panels 2a.
  • the transverse section of posts 2b can be of any nature, based on current requirements, provided said posts are equipped with engagement means 7 designed to be connected with the corresponding interlocking means 6 of the main panels 2a (in the assembled condition of construction 1).
  • the shape of the engagement means 7 preferably matches with and/or is complementary to the shape of the interlocking means 6; in this manner, the approaching and interlocking modalities between main panels 2a and posts 2b are substantially the same.
  • the engagement means 7 may comprise given geometric sequences of engagement faces (substantially matching and/or being complementary to the sequence of abutment faces in the main panels 2a), disposed on substantially opposite faces of post 2b (and preferably parallel faces as shown in Fig. 4, where practically post 2b has a section comprising a substantially quadrangular core).
  • post 2b can be secured to two main panels 2a that are substantially parallel to (or aligned with) each other along the laying direction.
  • the engagement means 7 may further comprise a predetermined geometric sequence of engagement faces disposed on consecutive faces, and preferably forming a predetermined solid angle, of post 2b (for example, in Fig. 7 engagement means 7 formed on two consecutive sides of the quadrangular core of post 2b can be seen); in this case, post 2b can be fastened to two main panels 2a that are substantially angled with respect to each other along the laying direction, and therefore the extension of construction 1 can be varied (in order to follow the contour of a parking area or other, for example).
  • the present invention also enables innovative and original building architectures to be achieved for the noise-suppression construction 1: for example, by arranging the engagement means on all sides of post 2b, a construction 1 having several laying directions radially diverging from post 2b can be made; in addition, it is also possible to dispose two or more posts 2b close to, and interlocked with each other, thus obtaining a very rigid load bearing structure and at the same time keeping the possibility of interfacing such a load bearing structure with the main panels 2a.
  • tortuous paths also referred to as acoustic labyrinths
  • the engagement means 7 together with the interlocking means 6 define a tortuous path designed to damp and/or inhibit the acoustic energy flow between at least one main panel 2a and one post 2b.
  • acoustic-seal elements 8a which elements are designed to be interposed between the main panels 2a and/or posts 2b (where they practically act as reflecting and/or damping fronts in the tortuous paths obtained by interfacing the components of construction 1).
  • acoustic damping elements 8b are provided in accordance with the present invention; these acoustic damping elements 8b can be formed on posts 2b and/or the main panels 2a and are active on the sound waves to damp the energy content thereof (through creation of a destructive interference on sound waves having predetermined frequencies, for example).
  • these acoustic damping elements 8b substantially consist of a plurality of holes (suitably spaced apart from each other and of calibrated sizes based on requirements) formed in the first and/or second face 3, 4 of the main panels 2a.
  • the present invention further comprises retaining elements 2c, which are operatively associable with the main panels 2a and/or posts 2b; in other words, these retaining elements 2c are designed to prevent the main panels 2a from relatively moving away along the operating directions.
  • the retaining elements 2c substantially comprise a lower rib placed under a predetermined number of main panels 2a and an upper rib substantially placed above a predetermined number of main panels.
  • These ribs extend between two posts 2b in succession along the laying direction and can advantageously be made at least partly of a material comprising a plurality of resistant fibres buried in a matrix (glass fibre in a thermosetting polymeric matrix, for example).
  • the rib presence is sufficient to prevent any degree of freedom of the present construction 1; in any case, depending on current requirements the components of the present invention can be linked together by devices of the traditional type such as through screws, self-tapping screws, rivetting, glueing and so on (as shown in the example in Fig. 4).
  • the present invention advantageously envisages the presence of a predetermined number of reinforcing elements 9 which are intended for engagement into the ground and with the posts 2b.
  • said reinforcing elements 9 consist of elongated elements (metal or composite material bars, for example) having a predetermined extension in the direction emerging from the ground; the extension in height of these reinforcing elements 9 can be less than that of the posts.
  • the noise-suppression construction 1 of the invention can be fastened following a particular modality; in fact, one or more reinforcing elements 9 can be inserted into the ground (or into a foundation formed in the ground), which elements 9 will partly emerge therefrom so that posts 2b and/or the main panels 2a can be exactly fitted on that portion of the reinforcing elements 9 emerging from the ground (i.e. without partly driving panels 2a and/or posts 2b into the ground or the foundation).
  • This construction typology is particularly useful where a deep insertion into the ground is impossible, at elevated roads or bridges for example. It will be understood that in this case the main panels 2a and/or posts 2b practically are in contact with the ground but do not penetrate thereinto.
  • main panels 2a and/or posts 2b and/or retaining elements 2c can be built by means of a drawing operation (preferably by pultrusion and/or extrusion).
  • Construction 1 can be advantageously provided with ornamental elements, which can be associated with at least the main panels 2a and/or posts 2b (or more generally, with one or more components of the construction itself).
  • At least part of the fibres constituting the main panels 2a and/or posts 2b may for example have a given number of portions exhibiting a predetermined succession of chromatic shades.
  • these fibres (or better, this multiplicity of such fibres) disposed close to each other according to predetermined combinations of said portions will be able to define said ornamental elements.
  • the different components can be made through a particular production process involving, during the forming step of panels 2a and/or posts 2b (or at all events of the construction components), an operating step in which the fibres before being passed through the forming implement of an extrusion or pultrusion plant, are submitted to dyeing, following predetermined patterns and chromatic sequences.
  • the matrix forming the main panels 2a and/or posts 2b will comprise an at least partly transparent material, so that the ornamental elements are made visible (while being partly covered with and protected by the resin itself).
  • the ornamental elements are formed, in accordance with the present invention, of appropriate laminar elements, such as films or previously printed fabrics, for example; these laminar elements are conveniently inserted in the main panels 2a and/or posts 2b during the forming step, following production technologies known by themselves (by coextrusion or co-pultrusion, for example).
  • the invention achieves important advantages.
  • the particular selection of the material for manufacture of the different components of the construction involves great advantages in terms of mechanical and lightness-in-weight properties; this, on the one hand, makes the assembling and/or disassembling operations simple and easy but, on the other hand, has beneficial effects in the logistic field as well (in fact it is possible to arrange several parts of a construction in a preassembled condition, which parts can be then easily transported and handled in the setting or laying place.
  • the reduced weight enables installation of the inventive construction on bridges or elevated roads as well, without the existence of static loads of great intensity resting thereon.
  • the material of which the construction of the invention is made also offers important advantages as regards electric insulation, immunity against external agents, waterproofness, resistance to corrosion and radio lucency; in addition, in the case of the present invention the resistance to impacts is greatly better than with traditional materials. Furthermore, the composite material of which the different components of construction 1 are made is practically exempt from thermal expansion phenomena.
  • the great modular character achieved between the components of the present invention enables installation of construction 1 also when complicated outlines in plan view are wished to be followed (so as to form successions of angles, for example).
  • the interlocking typology between the components of this construction offers a great hindrance to noise propagation also at the junction regions.
  • the present invention enables a very high efficiency in noise absorption and abatement, because on the one hand it enables an optimal filling of the cavities of the different components with acoustic insulation/sound absorbent material (also at the junction regions) and, on the other hand, also enables an efficient noise suppression through the interlocking regions between the different components as well.
  • the present invention also involves several advantages from an aesthetic point of view, because it can be easily provided with ornamental elements; in addition, the particular nature of these ornamental elements but above all positioning of same in the components of the sound-suppression construction makes them have an almost unlimited duration (in fact, the resin acting as the matrix completely covers the ornamental elements while leaving them in sight and in this way effectively protects them against atmospheric agents and dangerous objects.

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  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Devices Affording Protection Of Roads Or Walls For Sound Insulation (AREA)
EP03002712A 2003-02-06 2003-02-06 Barrière anti-bruit Withdrawn EP1445381A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP03002712A EP1445381A1 (fr) 2003-02-06 2003-02-06 Barrière anti-bruit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP03002712A EP1445381A1 (fr) 2003-02-06 2003-02-06 Barrière anti-bruit

Publications (1)

Publication Number Publication Date
EP1445381A1 true EP1445381A1 (fr) 2004-08-11

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EP03002712A Withdrawn EP1445381A1 (fr) 2003-02-06 2003-02-06 Barrière anti-bruit

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EP (1) EP1445381A1 (fr)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1889975A1 (fr) * 2006-08-16 2008-02-20 Calenberg Ingenieure planmässig elastisch lagern GmbH Dispositif d'amortissement des bruits
CN103806378A (zh) * 2013-10-21 2014-05-21 芜湖长启炉业有限公司 组合式高速公路降噪广告墙
EP2407596A3 (fr) * 2010-07-13 2014-10-15 Ed. Züblin AG Couplage d'éléments de mur antibruit avec un poteau
US20140366454A1 (en) * 2013-06-18 2014-12-18 B/E Aerospace, Inc. Aircraft galley cart bay door
CN111058393A (zh) * 2020-02-28 2020-04-24 郑州市交通规划勘察设计研究院 一种市政道路桥梁施工用降噪屏障
US11535991B2 (en) * 2019-02-14 2022-12-27 Mark Adam Tryon Noise attenuating barrier and method of installing same

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2478698A1 (fr) * 1980-03-18 1981-09-25 Proci Sa Mur antibruit
JPH03140508A (ja) * 1989-10-25 1991-06-14 Daito Kemitoronikusu Kk 透視できる防音壁用遮音板
US5372866A (en) * 1991-09-13 1994-12-13 Degussa Aktiengesellschaft Transparent plastic panels having bird protection, and use thereof as sound barriers
DE4435575A1 (de) * 1994-10-05 1996-04-11 Paul Lingen Schallschutzelement
EP0962593A1 (fr) * 1998-05-26 1999-12-08 Mostert de Winter B.V. Mur anti-bruit pour arrangement à coté d'un chemin de fer ou autoroute
US6412597B1 (en) * 1998-10-06 2002-07-02 Roehm Gmbh & Co Kg Plate suitable as a noise protection wall

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2478698A1 (fr) * 1980-03-18 1981-09-25 Proci Sa Mur antibruit
JPH03140508A (ja) * 1989-10-25 1991-06-14 Daito Kemitoronikusu Kk 透視できる防音壁用遮音板
US5372866A (en) * 1991-09-13 1994-12-13 Degussa Aktiengesellschaft Transparent plastic panels having bird protection, and use thereof as sound barriers
DE4435575A1 (de) * 1994-10-05 1996-04-11 Paul Lingen Schallschutzelement
EP0962593A1 (fr) * 1998-05-26 1999-12-08 Mostert de Winter B.V. Mur anti-bruit pour arrangement à coté d'un chemin de fer ou autoroute
US6412597B1 (en) * 1998-10-06 2002-07-02 Roehm Gmbh & Co Kg Plate suitable as a noise protection wall

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
PATENT ABSTRACTS OF JAPAN vol. 015, no. 358 (M - 1156) 10 September 1991 (1991-09-10) *

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1889975A1 (fr) * 2006-08-16 2008-02-20 Calenberg Ingenieure planmässig elastisch lagern GmbH Dispositif d'amortissement des bruits
CN101126224B (zh) * 2006-08-16 2018-04-06 卡伦堡工程有限公司 隔声装置
EP2407596A3 (fr) * 2010-07-13 2014-10-15 Ed. Züblin AG Couplage d'éléments de mur antibruit avec un poteau
US20140366454A1 (en) * 2013-06-18 2014-12-18 B/E Aerospace, Inc. Aircraft galley cart bay door
US9889935B2 (en) * 2013-06-18 2018-02-13 B/E Aerospace, Inc. Aircraft galley cart bay door
CN103806378A (zh) * 2013-10-21 2014-05-21 芜湖长启炉业有限公司 组合式高速公路降噪广告墙
US11535991B2 (en) * 2019-02-14 2022-12-27 Mark Adam Tryon Noise attenuating barrier and method of installing same
CN111058393A (zh) * 2020-02-28 2020-04-24 郑州市交通规划勘察设计研究院 一种市政道路桥梁施工用降噪屏障

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