EP1606457B1 - Noise prevention wall system comprising a base and a transparent top part - Google Patents

Noise prevention wall system comprising a base and a transparent top part Download PDF

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Publication number
EP1606457B1
EP1606457B1 EP03757930A EP03757930A EP1606457B1 EP 1606457 B1 EP1606457 B1 EP 1606457B1 EP 03757930 A EP03757930 A EP 03757930A EP 03757930 A EP03757930 A EP 03757930A EP 1606457 B1 EP1606457 B1 EP 1606457B1
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EP
European Patent Office
Prior art keywords
noise barrier
transparent
barrier system
noise
height
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EP03757930A
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German (de)
French (fr)
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EP1606457A1 (en
Inventor
Wolffgang Wiebel
Klaus Lublow
Klaus Oberländer
Norbert Brand
Reiner Lingelbach
Peter Seelmann
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Roehm GmbH Darmstadt
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Roehm GmbH Darmstadt
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    • 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
    • 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
    • E01F8/0023—Details, e.g. foundations

Definitions

  • the present invention relates to a noise barrier system according to the preamble of claim 1.
  • Plate systems of the type described above are usually constructed of several square meters large plates, in particular of transparent plastic plates, wherein the plates are arranged side by side and each two adjacent plates held together by a carrier and fixed to the floor or on the base or on the substructure of the noise barrier system.
  • transparent plastics such as polymethyl methacrylate (PMMA) or polycarbonate (PC) are preferably used.
  • These carriers are usually a double-T-carrier, on whose one T the two adjacent plates are fixed at a certain distance from each other and rest protected with a rubber profile.
  • These plates are held by a flat steel, which rests on the double T-beam facing end portions of the plates and which is connected by means of a plurality of fastening screws with the double-T-beam through the gap between the plates with a double-T-beam.
  • a noise barrier of this type is easy to build, not expensive from the support elements and secures the panels in an acceptable manner against the usual traffic loads.
  • a disadvantage of this solution is that the carriers are very wide posts, so that the necessary restraint lengths of at least 50 mm are guaranteed.
  • Transparent noise barriers have the advantage of an unobstructed view of the landscape and make the traffic route appear less wall-shaped for the viewer from the outside. In addition, their silhouette is not adversely affected on bridges.
  • EP-A-0 530 512 provides, for example, EP-A-0 530 512.
  • a plate system is disclosed in which plastic plates are not anchored at a distance on impact, but partially overlapping each other by the overlap and the support surface on the carrier with the carrier.
  • the required beam width can be approximately halved without compromising stability.
  • this gives a visually pleasing impression, in particular for wall systems and especially in the case of transparent noise barriers, since the carriers are slim and no longer clumsy, the technique known from EP-A-0 530 512 still makes relatively small post distances of about 2 Meters and a guidance of the plates over the entire height of up to 3 meters necessary.
  • Noise protection wall segments have a substantially rectangular frame, which at the edge of the profile of 2 vertical support post can be inserted and locked in this.
  • the frame itself which consists of 2 vertical frame spars, a lower frame spars and a two-part upper horizontal frame spars, sound absorption plates made of plastic are inserted and releasably held.
  • the frame must only have a height which is only about 2/3 of the height of the sound absorption plate, so that a supernatant of up to 50% can be realized.
  • EP908563 describes plastic noise barrier segments attached to a carrier, the plate being pivotally punk-shaped so as to accomodate a bending line of the plate resulting from the load through the attachment means.
  • the solution leads to a rather delicate-looking fastener of the plate, the necessary post widths are not reduced thereby.
  • the noise barrier segment for road, highway or railways, wherein the noise barrier segment consists of transparent plates, such as transparent plastic plates and the plate fixing means.
  • the transparent plate is formed around a vertical to the installation surface of the mounted noise protection wall, wherein the formation of a buckle and / or a fold is to be understood.
  • the noise barrier segment achieved by this shaping inherent stability.
  • a noise protection wall composed of these segments is transparent over its entire length and height, since no holding posts or structures between the individual segments are necessary.
  • the preferably biased segments When installed, the preferably biased segments are supported laterally against each other and at the ends of the wall or at arbitrary intervals against retaining posts.
  • a disadvantage of this solution is the required installation depth by the bending of the noise barrier segments. In many construction situations, the extra width is simply not available.
  • the invention relates to a noise barrier segment consisting of two edge-side vertical support post and a substantially rectangular frame which is mounted on the edge side of the vertical support post, wherein the frame has two vertical Rahmholme and a lower horizontal frame spar.
  • This solution dispenses with a support post in the upper transparent area of the noise protection wall, however, the noise protection wall requires a disproportionately high clamping depth.
  • WO 98/01625 describes a noise barrier, consisting of discs and fasteners, wherein the fasteners connect two discs by means of an elastic element.
  • the disks are arranged overlapping by means of the fastening elements.
  • the elastic fastening element is furthermore arranged behind the disks
  • the sound reflection wall disposed on the substructure may also be curved. Statements about the transparency or extent of the bend are missing.
  • FR 2 697 040 describes a shield against noise with a curved upper edge, wherein the edge must have a certain angular range.
  • a sound absorbing material is used, such as a composite material on concrete and wood.
  • the object is achieved by an arrangement of the attachment points of the transparent noise protection wall segment according to claim 1.
  • the attachment point As a technique for the attachment point, the method described in EP 0 908 563, Figure 1 and in the description of page 1, section 009 to page 4, section 035 is used. With this fastening technique it is possible to fix noise protection wall segments in the size of 2 x 3 meters and in thicknesses of about 20 mm, so that the usual static requirements (dead load, wind load) are met. Longer clamping widths have not been realized with the fastening system.
  • the length of the transparent noise barrier segments to be clamped can be more than doubled by arranging the attachment points such that the upper breakpoints of the transparent noise barrier segment are located at a level between 70 and 90% of the total height of the transparent noise barrier segment.
  • the upper stopping points of the transparent noise barrier segment are arranged according to the invention at a distance of between 3 and 50 times the thickness of the transparent noise barrier element from the vertical edge of the plate. For example, if the noise protection wall element had a thickness of 20 mm, the upper holding points would have to be at a distance of 60 to 1000 mm from the vertical edge of the plate.
  • the plates are clamped on the lower side over the entire length in a groove-shaped depression.
  • the depth of this groove of 2 cm to 25 cm, preferably from 3 to 15 cm and more preferably from 4 to 10 cm.
  • the distance between the posts can be up to 5 m.
  • the distance can also be up to 10 m, when approximately another center-point attachment is arranged.
  • the distance of the posts is 5 m or 10 m.
  • the base of the noise barrier system may be transparent or not transparent.
  • Non-transparent base may optionally be additionally designed to absorb noise, the skilled person are here appropriate materials such as sound-absorbing concrete known.
  • the noise protection plate is made of plastic or silicate glass and is preferably transparent and reflects the sound.
  • PMMA polymethyl methacrylate
  • PC polycarbonate
  • PET polyethylene terephthalate
  • the polymethylmethacrylate (PMMA) can be prepared by cast polymerization or by extrusion polymerization.
  • the transparent PMMA sheets can be made by cast polymerization or by extrusion, whereby polyamide filaments can be embedded for splinter bonding. Both production methods are known to the person skilled in the art. (Ullmann 6th edition, B. 28, p 377 ff).
  • the PMMA plates may be reinforced, as described in EP-A 0 407 852 or EP-A 0 531 982.
  • the height of the transparent noise barrier is between 1 m and 4 m. This height can be achieved by integrally constructing the transparent noise barrier or by making it of several superimposed plates, in which case suitable fasteners are to be used.
  • a further embodiment of the invention is characterized in that the upper part of the noise barrier segment is bent.
  • the width of the bent portion can be between 5 and 50 cm depending on requirements. Bends between 10 and 20 cm are preferred.
  • the angle formed by the bent region of the noise protection wall element with the vertical is between 30 ° and 90 °, preferably between 45 and 60 °.
  • the kink is self-supporting.
  • the kink in the transparent noise protection wall segment can be carried out by bending the element, but it can also be a separate transparent plate are attached by adhesive bonding.
  • the thickness of the transparent noise barrier element may vary within other limits, it has been proven to use plate thicknesses between 10 and 50 mm.
  • the ratio between the transparent noise protection plate and the base of the noise barrier can be between 1:10 and 10: 1, preferably between 1: 5 and 5: 1, and more preferably between 1: 2 and 2: 1.
  • FIG. 1 shows a Noise protection wall system with a distance between the posts up to 5 m, the plates of the transparent attachment are fixed by means of posts 4.
  • Figure 2 shows a noise barrier system with a distance between the posts up to 10 m, the plates of the transparent attachment by means of posts 4 and an approximately centrally arranged further point-like attachment 6 of the post 5 are attached.

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  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Sustainable Development (AREA)
  • Devices Affording Protection Of Roads Or Walls For Sound Insulation (AREA)
  • Building Environments (AREA)
  • Burglar Alarm Systems (AREA)
  • Radar Systems Or Details Thereof (AREA)
  • Soundproofing, Sound Blocking, And Sound Damping (AREA)

Abstract

A noise barrier system composed of a base and a transparent superstructure. A support holds at least two adjacent transparent noise barrier elements and includes a point-fastening of the transparent noise barrier element. A position of upper holding points of the transparent superstructure is arranged at a height of from 70 to 90% of a total height of the transparent noise barrier element and at a distance of from 3 to 50 times a thickness of the transparent noise barrier element from a vertical edge. An upper side of the transparent noise barrier element has a flexure, an angle of the flexure being from 30° to 90° from vertical, and a width of an angled region being from 5 cm to 50 cm, and an entire length of a lower side of the sheet is secured within a groove-shaped depression.

Description

Die vorliegende Erfindung betrifft ein Lärmschutzwandsystem gemäß dem Oberbegriff des Anspruch 1.The present invention relates to a noise barrier system according to the preamble of claim 1.

Plattensysteme der eingangs beschriebenen Art sind in der Regel aus mehreren quadratmetergroßen Platten, insbesondere aus transparenten Kunststoffplatten aufgebaut, wobei die Platten nebeneinander angeordnet sind und jeweils zwei benachbarte Platten von einem Träger zusammengehalten und am Boden oder am Sockel oder am Unterbau des Lärmschutzwandsystems fixiert werden. Neben Silikatglas werden bevorzugt transparente Kunststoffe wie beispielsweise Polymethylmethacrylat (PMMA) oder Polycarbonat (PC) eingesetzt.Plate systems of the type described above are usually constructed of several square meters large plates, in particular of transparent plastic plates, wherein the plates are arranged side by side and each two adjacent plates held together by a carrier and fixed to the floor or on the base or on the substructure of the noise barrier system. In addition to silicate glass, transparent plastics such as polymethyl methacrylate (PMMA) or polycarbonate (PC) are preferably used.

Diese Träger sind üblicherweise ein Doppel-T-Träger, auf dessen einem T die zwei benachbarten Platten in einem gewissen Abstand voneinander fixiert sind und mit einem Gummiprofil geschützt aufliegen. Gehalten werden diese Platten von einem Flachstahl, das auf den dem Doppel-T-Träger zugewandten Endbereichen der Platten aufliegt und das mittels mehrerer Befestigungsschrauben mit dem Doppel-T-Träger durch die Lücke zwischen den Platten mit einem Doppel-T-Träger verbunden ist.These carriers are usually a double-T-carrier, on whose one T the two adjacent plates are fixed at a certain distance from each other and rest protected with a rubber profile. These plates are held by a flat steel, which rests on the double T-beam facing end portions of the plates and which is connected by means of a plurality of fastening screws with the double-T-beam through the gap between the plates with a double-T-beam.

Eine Lärmschutzwand dieser Art ist einfach aufzubauen, von den Trägerelementen her nicht kostspielig und sichert die Platten in akzeptabler Weise gegen die üblicherweise auftretenden Verkehrslasten ab. Nachteilig bei dieser Lösung ist jedoch, dass die Träger sehr breite Pfosten sind, damit die nötigen Einspannungslängen von jeweils mindestens 50 mm gewährleistet sind.A noise barrier of this type is easy to build, not expensive from the support elements and secures the panels in an acceptable manner against the usual traffic loads. A disadvantage of However, this solution is that the carriers are very wide posts, so that the necessary restraint lengths of at least 50 mm are guaranteed.

Stand der TechnikState of the art

In der Veröffentlichung "Lärmschutzwände auf Brücken" (Verkehrsblatt-Verlag, 1995) werden die bis dahin bekannten Lärmschutzwand-Konstruktionen referiert. Bei den an Brücken vorherrschenden geringen Platzverhältnissen und in bereits bebauten Gebieten müssen die Lärmschutzwände erhöhten gestalterischen Anforderungen genügen.In the publication "Noise barriers on bridges" (Verkehrsblatt-Verlag, 1995), the hitherto known noise barrier constructions are reviewed. In the small spaces prevailing at bridges and in already built-up areas, the noise barriers must meet increased design requirements.

Bisher standen funktionale Merkmale, wie beispielsweise Schallabsorption, Standsicherheit und Konstruktion im Vordergrund, zunehmend spielen ästhetische Gesichtspunkte eine Rolle.So far, functional features, such as sound absorption, stability and design have been in the foreground, aesthetic aspects increasingly play a role.

Transparente Lärmschutzwände haben den Vorteil des freien Blicks in die Landschaft und lassen den Verkehrsweg für den Betrachter von außen weniger wallartig erscheinen. Außerdem wird auf Brücken deren Silhouette nicht nachteilig verändert.Transparent noise barriers have the advantage of an unobstructed view of the landscape and make the traffic route appear less wall-shaped for the viewer from the outside. In addition, their silhouette is not adversely affected on bridges.

Wenn die Konstruktion eine Kombination von einem nicht transparentem Sockel und einem transparentem Aufsatz ist, vermittelt dies dem Verkehrsteilnehmer ein gewisses Sicherheitsgefühl, vor allem auf Brücken.If the construction is a combination of a non-transparent base and a transparent top, this gives the road user a certain sense of security, especially on bridges.

Werden in diese Träger Kunststoffscheiben eingespannt, dann kann diese Verlegetechnik zur Ausbildung einer freien Auflagerung führen, welche durch Zulassung einer geringen Winkelbewegung zwischen Pfosten und Kunststoffscheibe eine negative Auswirkung auf die Erfüllung der Forderung der zusätzlichen technischen Vorschrift Lärmschutzwand 1988 (ZDV LSW 88) nach maximaler Durchbiegung unter Verkehrslast von 175 hat.If plastic discs are clamped in this carrier, then this laying technique can lead to the formation of a free Auflagerung, which by allowing a slight angular movement between the post and Plastic disc has a negative effect on the fulfillment of the requirement of the additional technical regulation noise protection wall 1988 (ZDV LSW 88) after maximum deflection under traffic load of 175 has.

Aus dem DE8524319U bzw. EP-A-0 213 521 sind Verglasungssprossen zur Errichtung von Lärmschutzwänden, die großflächige Scheiben aus durchsichtigem Kunststoff zwischen senkrechten Pfosten enthalten, bekannt geworden, die in etwa den Eingangs genannten Trägern entsprechen. Anstelle eines Doppel-T-Trägers kann bei diesen Systemen auch ein Vierkantrohr verwendet werden, das hinsichtlich seiner Abmessungen dem Doppel-T-Träger entspricht. Die einzelnen Platten werden mit Abstand voneinander auf eine der Seitenflächen des Vierkantrohres aufgelegt und mittels einer Klemmschiene und einer entsprechenden Anzahl von Schrauben durch die Lücke zwischen den einzelnen Platten gegen das Vierkantrohr geklemmt. Die Konstruktion ist hinreichend windstabil, benötigt jedoch hierfür verhältnismäßig breite Vierkantrohre.From DE8524319U or EP-A-0 213 521 glazing rungs for the construction of noise barriers, which contain large-area panes of transparent plastic between vertical posts, have become known, which correspond approximately to the entrance mentioned carriers. Instead of a double T-beam can be used in these systems, a square tube, which corresponds in terms of its dimensions to the double-T-beam. The individual plates are spaced apart on one of the side surfaces of the square tube and clamped by a clamping rail and a corresponding number of screws through the gap between the individual plates against the square tube. The construction is sufficiently wind stable, but requires relatively wide square tubes for this purpose.

Abhilfe hierfür liefert beispielsweise die EP-A-0 530 512. Hierin wird ein Plattensystem offenbart, in welchem Kunststoffplatten nicht im Abstand auf Stoß, sondern einander teilweise überlappend durch die Überlappung und die Auflagefläche am Träger hindurch mit dem Träger verankert sind. Hierdurch kann die erforderliche Trägerbreite ohne Beeinträchtigung der Stabilität in etwa halbiert werden. Obwohl dies insbesondere für Wandsysteme und speziell bei durchsichtigen Lärmschutzwänden einen optisch gefälligeren Eindruck ergibt, da die Träger schlank sind und nicht mehr wie bisher plump wirken, macht die aus der EP-A-0 530 512 bekannte Technik immer noch relativ geringe Pfostenabstände von etwa 2 Metern sowie eine Führung der Platten über die gesamte Höhe von bis zu 3 Metern notwendig.A remedy for this provides, for example, EP-A-0 530 512. Herein a plate system is disclosed in which plastic plates are not anchored at a distance on impact, but partially overlapping each other by the overlap and the support surface on the carrier with the carrier. As a result, the required beam width can be approximately halved without compromising stability. Although this gives a visually pleasing impression, in particular for wall systems and especially in the case of transparent noise barriers, since the carriers are slim and no longer clumsy, the technique known from EP-A-0 530 512 still makes relatively small post distances of about 2 Meters and a guidance of the plates over the entire height of up to 3 meters necessary.

Es hat nun bereits Vorschläge gegeben, wie sowohl der Pfostenabstand als auch der freie Überstand vergrößert werden können. Einen Vorschlag hierzu entnimmt man beispielsweise der DE-A 42 30 786. Die dort offenbarten Lärmschutzwandsegmente weisen einen im wesentlichen rechteckigen Rahmen auf, welcher randseitig in das Profil von 2 senkrechten Tragpfosten einschiebbar und in diesen verriegelbar ist. In den Rahmen selbst, welcher aus 2 vertikalen Rahmenholmen, einem unteren Rahmenholmen sowie einem zweigeteilten oberen horizontalen Rahmenholmen besteht, sind Schallschluckplatten aus Kunststoff eingeschoben und lösbar gehalten. Dabei muss der Rahmen lediglich eine Höhe haben, die nur etwa 2/3 der Höhe der Schallschluckplatte beträgt, so dass ein Überstand von bis zu 50% realisierbar ist. Obwohl durch den Überstand und die Vergrößerung des Pfostenabstandes auf bis zu 6 Meter die ansonsten durch eine kurze Pfostenfolge bei bekannten Lärmschutzwänden stark beeinträchtigte Sicht erheblich verbessert ist, ist insbesondere der optische Eindruck einer solchen Lärmschutzwand immer noch schwer und drückend.There have already been suggestions as to how both the post distance and the free projection can be increased. A proposal for this takes, for example, DE-A 42 30 786. The disclosed there Noise protection wall segments have a substantially rectangular frame, which at the edge of the profile of 2 vertical support post can be inserted and locked in this. In the frame itself, which consists of 2 vertical frame spars, a lower frame spars and a two-part upper horizontal frame spars, sound absorption plates made of plastic are inserted and releasably held. In this case, the frame must only have a height which is only about 2/3 of the height of the sound absorption plate, so that a supernatant of up to 50% can be realized. Although by the supernatant and the increase in the pole distance to up to 6 meters, the otherwise greatly impaired by a short post sequence in known noise barriers vision is greatly improved, especially the visual impression of such a noise barrier is still heavy and oppressive.

EP908563 beschreibt Lärmschutzwandsegmente aus Kunststoff, die an einem Träger befestigt sind, wobei die Platte gelenkig punkförmig so gelagert ist, dass eine unter der Last resultierende Biegelinie der Platte durch das Befestigungsmittel begleitbar ist. Die Lösung führt zu einem recht filigran aussehenden Befestigungsmittel der Platte, die notwendigen Pfostenbreiten werden dadurch aber nicht verringert.EP908563 describes plastic noise barrier segments attached to a carrier, the plate being pivotally punk-shaped so as to accomodate a bending line of the plate resulting from the load through the attachment means. The solution leads to a rather delicate-looking fastener of the plate, the necessary post widths are not reduced thereby.

DE 19906989 betrifft ein Lärmschutzwandsegment für Strassen-, Autobahn- oder Schienenwege, wobei das Lärmschutzwandsegment aus transparenten Platten, beispielsweise transparenten Kunststoffplatten und den plattenfixierenden Mitteln besteht. Die transparente Platte ist um eine senkrechte zur Aufstellungsfläche der montierten Lärmschutzwand geformt, wobei unter der Formung eine Wölbung und/oder eine Faltung zu verstehen ist. Das Lärmschutzwandsegment erreicht durch diese Formung eine Eigenstabilität. Eine aus diesen Segmenten zusammengesetzte Lärmschutzwand ist über deren gesamte Länge und Höhe transparent, da keine Haltepfosten oder Tragwerke zwischen den einzelnen Segmenten notwendig sind.DE 19906989 relates to a noise barrier segment for road, highway or railways, wherein the noise barrier segment consists of transparent plates, such as transparent plastic plates and the plate fixing means. The transparent plate is formed around a vertical to the installation surface of the mounted noise protection wall, wherein the formation of a buckle and / or a fold is to be understood. The noise barrier segment achieved by this shaping inherent stability. A noise protection wall composed of these segments is transparent over its entire length and height, since no holding posts or structures between the individual segments are necessary.

Im eingebauten Zustand stützen sich die vorzugsweise vorgespannten Segmente seitlich gegeneinander und an den Enden der Wand oder in frei wählbaren Abständen gegen Haltepfosten ab. Nachteilig bei dieser Lösung ist die erforderliche Einbautiefe durch die Biegung der Lärmschutzwandsegmente. In vielen Bausituationen steht die zusätzliche Breite einfach nicht zur Verfügung.When installed, the preferably biased segments are supported laterally against each other and at the ends of the wall or at arbitrary intervals against retaining posts. A disadvantage of this solution is the required installation depth by the bending of the noise barrier segments. In many construction situations, the extra width is simply not available.

Ein weiteres System beschreibt EF589 346. Die Erfindung betrifft ein Lärmschutzwandsegment bestehend aus zwei randseitigen senkrechten Tragpfosten und einem im wesentlichen rechteckigen Rahmen der randseitig an den senkrechten Tragpfosten angebracht ist, wobei der Rahmen zwei vertikale Rahmholme und einen unteren horizontalen Rahmenholm aufweist. Diese Lösung verzichtet auf einen Tragpfosten im oberen transparenten Bereich der Lärmschutzwand, allerdings benötigt die Lärmschutzwand eine unverhältnismäßig hohe Einspanntiefe.Another system describes EF589 346. The invention relates to a noise barrier segment consisting of two edge-side vertical support post and a substantially rectangular frame which is mounted on the edge side of the vertical support post, wherein the frame has two vertical Rahmholme and a lower horizontal frame spar. This solution dispenses with a support post in the upper transparent area of the noise protection wall, however, the noise protection wall requires a disproportionately high clamping depth.

WO 98/01625 beschreibt eine Lärmschutzwand, bestehend aus Scheiben und Befestigungselementen, wobei die Befestigungselemente mittels eines elastischen Elements zwei Scheiben miteinander verbinden.WO 98/01625 describes a noise barrier, consisting of discs and fasteners, wherein the fasteners connect two discs by means of an elastic element.

Die Scheiben sind mittels der Befestigungselemente überlappend angeordnet Das elastische Befestigungselement ist femer hinter den Scheiben angeordnetThe disks are arranged overlapping by means of the fastening elements. The elastic fastening element is furthermore arranged behind the disks

DE-OS 1 534 499 beschreibt eine Sicherheitsleitplanke für Straßen. Die Sicherheitsleitplanke soll neben der üblichen Leitplankenfunktion auch noch Schalischutzfunkrionen aufweisen.DE-OS 1 534 499 describes a safety barrier for roads. The Sicherheitsleitplanke should also have Schalischutzfunkrionen next to the usual guard rail function.

Die Schallreflektionswand, die auf der Unterkonstruktion angeordnet ist, kann auch gebogen sein. Aussagen zur Transparenz oder zum Ausmaß der Biegung fehlen.The sound reflection wall disposed on the substructure may also be curved. Statements about the transparency or extent of the bend are missing.

FR 2 697 040 beschreibt ein Abschirmelement gegen Lärm mit einem gebogenen oberen Rand, wobei der Rand einen bestimmten Winkelbereich aufweisen muss.FR 2 697 040 describes a shield against noise with a curved upper edge, wherein the edge must have a certain angular range.

Als Material für die Abschirmelemente wird ein lärmabsorbierendes Material verwendet, wie zum Beispiel ein Verbundwerkstoff auf Beton und Holz.As a material for the shielding elements, a sound absorbing material is used, such as a composite material on concrete and wood.

Aufgabetask

Fährt man mit dem Verkehrsmittel an einer nach dem Stand der Technik aufgebauten Lärmschutzwand entlang, so entsteht durch den Wechsel aus transparenter Lärmschutzwand und massiven Befestigungspfosten ein unschöner Stakkatoeffekt durch den hell/dunkel Wechsel. Es bestand also die Aufgabe, eine transparente Lärmschutzwand so auszubilden, dass dieser unschöne Stakkatoeffekt möglichst vermieden wird und der transparente Eindruck möglichst ungestört den Verkehrsteilnehmer erreicht. Die Befestigung muss die üblichen Verkehrslasten aufnehmen und darf, besonders auf Brücken, nicht all zu viel Raum beanspruchen.If you drive along with the means of transport on a noise protection wall constructed according to the state of the art, the change from transparent noise protection wall and solid mounting posts creates an unsightly staccato effect due to the light / dark change. It was therefore the task of a transparent noise barrier in such a way that this unsightly staccato effect is avoided as possible and the transparent impression as undisturbed reaches the road users. The attachment must accommodate the usual traffic loads and may not take up too much space, especially on bridges.

Lösungsolution

Die Aufgabe wird durch eine Anordnung der Befestigungspunkte des transparenten Lärmschutzwandsegments gemäß Anspruch 1 gelöst. Als Technik für den Befestigungspunkt wird die in der EP 0 908 563, Figur 1 und in der Beschreibung S. 1, Abschnitt 009 bis S. 4, Abschnitt 035 beschriebene Methode angewandt. Mit dieser Befestigungstechnik gelingt es, Lärmschutzwandsegmente in der Größe von 2 x 3 Metern und in Dicken von etwa 20 mm zu befestigen, so dass die üblichen statischen Anforderungen (Eigenlast, Windlast) erfüllt sind. Längere Einspannbreiten wurden mit dem Befestigungssystem bisher nicht realisiert.The object is achieved by an arrangement of the attachment points of the transparent noise protection wall segment according to claim 1. As a technique for the attachment point, the method described in EP 0 908 563, Figure 1 and in the description of page 1, section 009 to page 4, section 035 is used. With this fastening technique it is possible to fix noise protection wall segments in the size of 2 x 3 meters and in thicknesses of about 20 mm, so that the usual static requirements (dead load, wind load) are met. Longer clamping widths have not been realized with the fastening system.

Es wurde nun gefunden, dass man die Länge der einzuspannenden transparenten Lärmschutzwandsegmente mehr als verdoppeln kann, wenn man die Befestigungspunkte so anordnet, dass die oberen Haltepunkte des transparenten Lärmschutzwandsegments in einer Höhe zwischen 70 und 90 % der Gesamthöhe des transparenten Lärmschutzwandsegments angeordnet sind.It has now been found that the length of the transparent noise barrier segments to be clamped can be more than doubled by arranging the attachment points such that the upper breakpoints of the transparent noise barrier segment are located at a level between 70 and 90% of the total height of the transparent noise barrier segment.

Die oberen Haltepunkte des transparenten Lärmschutzwandsegments werden gemäß der Erfindung in einem Abstand zwischen der 3 und der 50-fachen Dicke des transparenten Lärmschutzwandelements vom vertikalen Rand der Platte angeordnet. Bei einem beispielsweise 20 mm dicken Lärmschutzwandelement müssten die oberen Haltepunkte also einen Abstand zum vertikalen Rand der Platte zwischen 60 und 1000 mm besitzen.The upper stopping points of the transparent noise barrier segment are arranged according to the invention at a distance of between 3 and 50 times the thickness of the transparent noise barrier element from the vertical edge of the plate. For example, if the noise protection wall element had a thickness of 20 mm, the upper holding points would have to be at a distance of 60 to 1000 mm from the vertical edge of the plate.

Die Platten werden an der unteren Seite über die gesamte Länge in einer nutförmigen Vertiefung eingespannt. Hierbei beträgt die Tiefe dieser Nut von 2 cm bis 25 cm, bevorzugt von 3 bis 15 cm und besonders bevorzugt von 4 bis 10 cm.The plates are clamped on the lower side over the entire length in a groove-shaped depression. Here, the depth of this groove of 2 cm to 25 cm, preferably from 3 to 15 cm and more preferably from 4 to 10 cm.

Der Abstand zwischen den Pfosten kann bis zu 5 m betragen. Der Abstand kann auch bis zu 10 m betragen, wenn etwa mittig eine weitere punktförmige Befestigung angeordnet ist. Bevorzugt beträgt der Abstand der Pfosten 5 m oder 10 m.The distance between the posts can be up to 5 m. The distance can also be up to 10 m, when approximately another center-point attachment is arranged. Preferably, the distance of the posts is 5 m or 10 m.

Durch die erfindungsgemäße Befestigung erreichten größeren Pfostenabstände wird der störende Stakkato-Effekt deutlich vermindert.Due to the attachment according to the invention achieved larger distances between posts the disturbing staccato effect is significantly reduced.

Der Sockel des Lärmschutzwandsystems kann transparent oder nicht transparent sein. Nicht transparente Sockel können gegebenenfalls zusätzlich lärmabsorbierend ausgelegt sein, dem Fachmann sind hier entsprechende Materialien wie zum Beispiel lärmabsorbierender Beton bekannt.The base of the noise barrier system may be transparent or not transparent. Non-transparent base may optionally be additionally designed to absorb noise, the skilled person are here appropriate materials such as sound-absorbing concrete known.

Die Lärmschutzplatte besteht aus Kunststoff oder aus Silikatglas und ist bevorzugt transparent und reflektiert den Schall.The noise protection plate is made of plastic or silicate glass and is preferably transparent and reflects the sound.

Als transparente Kunststoffe können Polymethylmethacrylat (PMMA), Polycarbonat (PC) oder Polyethylenterephthalat (PET) verwendet werden.As transparent plastics, polymethyl methacrylate (PMMA), polycarbonate (PC) or polyethylene terephthalate (PET) can be used.

Das Polymethylmethacrylat (PMMA) kann durch Gusspolymerisation oder durch Extrusionspolymerisation hergestellt werden. Die transparenten PMMA-Platten können durch Gusspolymerisation oder durch Extrusion hergestellt werden, wobei Polyamidfäden zur Splitterbindung eingebettet werden können. Beide Herstellungsverfahren sind dem Fachmann bekannt. (Ullmann 6. Auflage, B. 28, S. 377 ff). Die PMMA-Platten können verstärkt sein, wie in der EP-A 0 407 852 oder der EP-A 0 531 982 beschrieben.The polymethylmethacrylate (PMMA) can be prepared by cast polymerization or by extrusion polymerization. The transparent PMMA sheets can be made by cast polymerization or by extrusion, whereby polyamide filaments can be embedded for splinter bonding. Both production methods are known to the person skilled in the art. (Ullmann 6th edition, B. 28, p 377 ff). The PMMA plates may be reinforced, as described in EP-A 0 407 852 or EP-A 0 531 982.

Die Höhe der transparenten Lärmschutzwand bewegt sich zwischen 1 m und 4 m. Diese Höhe kann erreicht werden, indem die transparente Lärmschutzwand einstückig ausgeführt ist oder indem sie aus mehreren übereinander gestellten Platten besteht, wobei in diesem Fall geeignete Verbindungselemente zu verwenden sind.The height of the transparent noise barrier is between 1 m and 4 m. This height can be achieved by integrally constructing the transparent noise barrier or by making it of several superimposed plates, in which case suitable fasteners are to be used.

Eine weitere Ausführungsform der Erfindung ist dadurch gekennzeichnet, dass der obere Teil des Lärmschutzwandsegments abgeknickt ist. Die Breite des abgeknickten Bereichs kann, je nach Erfordernissen, zwischen 5 und 50 cm liegen. Abknickungen zwischen 10 und 20 cm sind bevorzugt. Der Winkel, den der abgeknickte Bereich des Lärmschutzwandelements mit der Senkrechten bildet, liegt zwischen 30° und 90°, bevorzugt zwischen 45 und 60°. Der Knick ist freitragend ausgeführt. Der Knick in dem transparenten Lärmschutzwandsegment kann durch Abkanten des Elements ausgeführt sein, es kann aber auch eine separate transparente Platte mittels Klebeverbindung angesetzt werden. Die Dicke des transparenten Lärmschutzwandelements kann in weiteren Grenzen variieren, es hat sich bewährt, Plattendicken zwischen 10 und 50 mm einzusetzen.A further embodiment of the invention is characterized in that the upper part of the noise barrier segment is bent. The width of the bent portion can be between 5 and 50 cm depending on requirements. Bends between 10 and 20 cm are preferred. The angle formed by the bent region of the noise protection wall element with the vertical is between 30 ° and 90 °, preferably between 45 and 60 °. The kink is self-supporting. The kink in the transparent noise protection wall segment can be carried out by bending the element, but it can also be a separate transparent plate are attached by adhesive bonding. The thickness of the transparent noise barrier element may vary within other limits, it has been proven to use plate thicknesses between 10 and 50 mm.

Das Verhältnis zwischen der transparenten Lärmschutzplatte und dem Sockel der Lärmschutzwand kann sich zwischen 1 : 10 und 10 : 1, bevorzugt zwischen 1 : 5 und 5 : 1 und besonders bevorzugt zwischen 1 : 2 und 2 : 1 bewegen.The ratio between the transparent noise protection plate and the base of the noise barrier can be between 1:10 and 10: 1, preferably between 1: 5 and 5: 1, and more preferably between 1: 2 and 2: 1.

Erläuterung der ZeichnungenExplanation of the drawings

Die Figuren 1 und 2 zeigen - ohne dass hierdurch eine Beschränkung erfolgen soll - ein Lärmschutzwandsystem bestehend aus einem nicht transparenten Sockel und einem transparenten Aufsatz. Figur 1 zeigt ein Lärmschutzwandsystem mit einem Abstand zwischen den Pfosten bis zu 5 m, wobei die Platten des transparenten Aufsatzes mittels Pfosten 4 befestigt sind.Figures 1 and 2 show - without this being a restriction - a noise barrier system consisting of a non-transparent base and a transparent attachment. FIG. 1 shows a Noise protection wall system with a distance between the posts up to 5 m, the plates of the transparent attachment are fixed by means of posts 4.

Figur 2 zeigt ein Lärmschutzwandsystem mit einem Abstand zwischen den Pfosten bis zu 10 m, wobei die Platten des transparenten Aufsatzes mittels Pfosten 4 und einer etwa mittig angeordneten weiteren punktförmigen Befestigung 6 des Pfostens 5 befestigt sind.Figure 2 shows a noise barrier system with a distance between the posts up to 10 m, the plates of the transparent attachment by means of posts 4 and an approximately centrally arranged further point-like attachment 6 of the post 5 are attached.

Bedeutung der Bezugszeichen:Meaning of the reference signs:

  • 1 = Sockel1 = socket
  • 2 = transparenter Aufsatz2 = transparent attachment
  • 3 = abgeknickter oberer Teil des transparenten Lärmschutzwandelements3 = bent upper part of the transparent noise protection wall element
  • 4 = Pfosten (Träger), wie z.B. in EP 0 908 563, Figur 1 beschrieben4 = posts (girders), e.g. in EP 0 908 563, Figure 1 described
  • 5 = Pfosten (Träger) für zusätzliche, etwa mittige Befestigung5 = post (support) for additional, approximately central attachment
  • 6 = punktförmige Befestigung des transparenten Lärmschutzwandelements6 = punctiform attachment of the transparent noise protection wall element

Claims (18)

  1. Noise barrier system composed of a base (1) and of a transparent superstructure (2), where the support (4) holding at least two adjacent transparent noise barrier elements comprises a point-fastening of the transparent noise barrier element, and where the position of the upper holding points (6) of the transparent element has been arranged at a height of from 70 to 90 per cent of the total height of the transparent noise barrier element (2), characterized in that the position of the upper holding points (6) of the transparent element of the noise barrier (2) has been arranged at a distance of from 3 to 50 times the thickness of the transparent noise barrier element from the vertical edge, and in that the upper side of the transparent noise barrier element has a flexure, the angle of the flexure being from 30° to 90° from vertical, and the width of the angled region being from 5 cm to 50 cm, and in that the entire length of the lower side of the sheet has been secured within a groove-shaped depression.
  2. Noise barrier system according to Claim 1,
    characterized in that
    the base is transparent.
  3. Noise barrier system according to Claim 1,
    characterized in that
    the base is non-transparent.
  4. Noise barrier system according to Claim 3,
    characterized in that
    the base is also sound-deadening.
  5. Noise barrier system according to one or more of the preceding claims,
    characterized in that
    the angle between the angled region and vertical is from 45° to 60°.
  6. Noise barrier system according to one or more of the preceding claims,
    characterized in that
    the thickness of the transparent noise barrier element is from 10 mm to 50 mm.
  7. Noise barrier system according to one or more of the preceding claims,
    characterized in that
    the width of the angled region is from 10 to 20 cm.
  8. Noise barrier system according to Claim 1,
    characterized in that
    the support post separation is up to 5 m.
  9. Noise barrier system according to Claims 1 to 7,
    characterized in that
    the post separation is up to 10 m, and in that another point-fastening has been arranged approximately at the centre.
  10. Noise barrier system according to any of Claims 1 to 7,
    characterized in that
    the height of the noise barrier, which, where appropriate, is composed of two or more sheets mutually superposed, is from 1 to 4 m.
  11. Noise barrier system according to one or more of the preceding claims,
    characterized in that
    the ratio between the height of the transparent sound-deadening sheet and the height of the noise barrier is from 1:10 to 10:1.
  12. Noise barrier system according to one or more of the preceding claims,
    characterized in that
    the transparent part of the noise barrier system provides a reflective sound-deadening function.
  13. Noise barrier system according to one or more of the preceding claims,
    characterized in that
    the orientation of the flexure is towards the sound source.
  14. Noise barrier system according to Claims 1 to 12,
    characterized in that
    the orientation of the flexure is away from the sound source.
  15. Noise barrier system according to one or more of the preceding claims,
    characterized in that
    the transparent part is composed of mineral glass or of transparent plastics.
  16. Noise barrier system according to one or more of the preceding claims,
    characterized in that
    the transparent plastics used comprise polymethyl methacrylate (PMMA), polycarbonate (PC) or polyethylene terephthalate (PET).
  17. Noise barrier system according to Claim 16,
    characterized in that
    the PMMA can be prepared by polymerization using a casting or extrusion method.
  18. Noise barrier system according to Claim 16,
    characterized in that
    the transparent PMMA sheet is produced by polymerization using a casting method, or by extrusion, with embedding of polyamide threads for binding splinters.
EP03757930A 2003-03-21 2003-10-09 Noise prevention wall system comprising a base and a transparent top part Expired - Lifetime EP1606457B1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE10312783A DE10312783A1 (en) 2003-03-21 2003-03-21 Noise protection wall system consisting of a pedestal and a transparent attachment
DE10312783 2003-03-21
PCT/EP2003/011162 WO2004083525A1 (en) 2003-03-21 2003-10-09 Noise prevention wall system comprising a base and a transparent top part

Publications (2)

Publication Number Publication Date
EP1606457A1 EP1606457A1 (en) 2005-12-21
EP1606457B1 true EP1606457B1 (en) 2006-11-29

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EP03757930A Expired - Lifetime EP1606457B1 (en) 2003-03-21 2003-10-09 Noise prevention wall system comprising a base and a transparent top part

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US (1) US7568553B2 (en)
EP (1) EP1606457B1 (en)
JP (1) JP4383355B2 (en)
CN (1) CN1751156B (en)
AT (1) ATE346983T1 (en)
AU (1) AU2003273963A1 (en)
DE (2) DE10312783A1 (en)
ES (1) ES2278191T3 (en)
HK (1) HK1087745A1 (en)
RU (1) RU2334043C2 (en)
TW (1) TW200419044A (en)
WO (1) WO2004083525A1 (en)

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TW200419044A (en) 2004-10-01
DE50305879D1 (en) 2007-01-11
HK1087745A1 (en) 2006-10-20
AU2003273963A1 (en) 2004-10-11
US7568553B2 (en) 2009-08-04
CN1751156B (en) 2010-05-05
RU2005132381A (en) 2006-02-20
JP2006514184A (en) 2006-04-27
WO2004083525A1 (en) 2004-09-30
ES2278191T3 (en) 2007-08-01
CN1751156A (en) 2006-03-22
EP1606457A1 (en) 2005-12-21
DE10312783A1 (en) 2004-09-30
JP4383355B2 (en) 2009-12-16
RU2334043C2 (en) 2008-09-20
US20060185268A1 (en) 2006-08-24
ATE346983T1 (en) 2006-12-15

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