DK9500318U3

DK9500318U3 - Road noise screen that avoids reflection

Info

Publication number: DK9500318U3
Application number: DK9500318U
Authority: DK
Inventors: Joergen Larsen; Peter Petersen
Original assignee: Arkitekt Larsen Joergen
Priority date: 1995-08-23
Filing date: 1995-08-23
Publication date: 1995-09-22

Description

DK 95 00318 U3DK 95 00318 U3

Opfindelsen angår støjskærm til reduktion af støj. Støjskærmen anbringes mellem støjkilde og områder der skal beskyttes mod støj.Støj skærmen fungerer ved at støjen kastes enten op i luften og undgår at ramme modstående flader.Det meste af støjen • 5 kastes ind bag ved lamellerne, hvor den absorptionsmateriale -belægning er anbragt bag et vejrbestandigt net, hvor støjen absorberes, og reflektioner undgåes. Støjskærmen er af den art, der består af skiftevis skårstillet lamel og vandret lamel.The invention relates to noise shield for noise reduction. The noise shield is positioned between the noise source and areas to be protected from noise. The noise shield works by throwing the noise either into the air and avoiding hitting opposite surfaces. a weatherproof mesh where noise is absorbed and reflections are avoided. The noise shield is of the type consisting of alternately slanted slats and horizontal slats.

lo Opbygningen af skærmen er følgende:lo The layout of the screen is as follows:

Et rammeparti med vandrette dele og lodrette dele, hvori der, er fræsset notter til montage af skrålameller. Bagbeklædningen består af vejrbestandigt' materiale der vejer ca. 2o kg/m--, af hensyn til støjtekniske forhold. På bagbeklædningen er monteret 15 absorptionsmateriale , og på modsat side pyntelister. Rammepartiet sænkes ned i et kendt stålprofil der er faststøbt, og rammepartiet stilles på et sokkelelement.A frame section with horizontal parts and vertical parts in which there are milled grooves for mounting slats. The back cover consists of weatherproof material weighing approx. 2o kg / m - for noise technical reasons. On the back cover are mounted 15 absorbent material, and on the opposite side decorative moldings. The frame portion is lowered into a known steel profile which is molded and the frame portion is placed on a pedestal element.

Ved de kendte støjskærme og konstruktioner er det problem at 2o lodrette og overvejende plane flader bevirker reflektioner hvorved tillægsdæmpningen forringes, og modstående flader opnår øget lydtryk, der kan blive til væsentlig gene for beboer. Denne støjskærm kan monteres som tyndskærm tæt på støjkilden, og dæmper derved mere. Til sammenligning ligger en tykskærm som en jordvold 25 længere tilbage og fylder meget i bredden.In the known noise screens and constructions, it is a problem that 2o vertical and predominantly planar surfaces cause reflections thereby reducing the attenuation, and opposing surfaces achieve increased sound pressure which can cause significant nuisance to the occupant. This noise shield can be mounted as a thin shield close to the noise source, thereby attenuating more. In comparison, a thick screen such as a ground wall is 25 farther back and fills a lot in width.

Principielt kan der ved den fra tysk patent nr. DE 2936776 kendte konstruktion med ensrettet ca. 45° skrålammellep, dérine konstruk tion ser ikke de muligheder der er ved overvejende vandrette la-3omeller til omkring 16°, idet støjen i forbindelse med høje skærme overvejende kommer nede fra. Samtidig indgår de lameller der er vandrette i konstruktionen overfor vindtryk. Hver anden lamel mdnteres enkelt i en skrårille. Her ud over fremtræder selv samme konstruktion estetisk, et funktionkrav mange steder.In principle, with the construction known from German patent No. DE 2936776, unidirectional approx. 45 ° slopes, this construction does not see the possibilities of predominantly horizontal la-3 or to about 16 °, since the noise associated with high screens predominantly comes down. At the same time, the slats that are horizontal in the construction are exposed to wind pressure. Every other lamella is simply mounted in a bevel. In addition, even the same construction appears aesthetically, a functional requirement in many places.

Ved opfindelsen tilvejebringes en støjskærm der mest mulig undgår reflektioner. Dette opnåes ifølge opfindelsen ved at lydtryk side 1 35 DK 95 00318 U3 ket ved skråstillet-og vandrette lameller ledes indbag til et absorptionsmateriale, en mindre del lydstråler sendes op 40 i luften . Selve bagbeklædningen fungerer som støjskærm med sin egenvægt på ca. 2o kg/m2.The invention provides a noise shield that avoids reflections as much as possible. This is achieved according to the invention by the sound pressure being directed inwards to an absorption material by inclined and horizontal slats, a smaller part of the sound beams being sent up 40 into the air. The back cover itself acts as a noise shield with its own weight of approx. 2 kg / m2.

I denne særlige udførelse af rammekonstruktionen, i hvilke der i lodrette stykker fræset riller ca. 6o° med vandret 45 (+ - 6°) . I disse riller skubbes ved enkelt montage et vejr bestandigt materiale ,plant eller bølgede, på plads. Lamellerne kan skubbes til ønskede mål ,afhændiget af støjtekniske hensyn. Skrålamellerne slår støjen op mod himmelen eller ind bagved lamellerne. Her fungerer de vandrette ramdele således at 5o de slår lyden indbag lamellerne , samtidig med at de fungerer i konstruktionen over for vindtryk. Idet støjen i forbindelse med høje støjskærme overvejende kommer fra et lavere niveau.In this particular embodiment of the frame construction, in which in vertical pieces the milling grooves approx. 6 ° with horizontal 45 (+ - 6 °). In these grooves, simply mounting a weather resistant material, flat or corrugated, is pushed into place. The slats can be pushed to desired dimensions, depending on noise technical considerations. The rattle slats beat the noise up against the sky or in behind the slats. Here, the horizontal frame members function so that 5o they beat the sound in the slats, while at the same time they function in the construction against wind pressure. As the noise associated with high noise screens comes predominantly from a lower level.

I det absorberende materiale opsuges støjen. Rammerne fremstilles industrielt på værksted. Monteringen af rammerne sker enkel 55 uden anvendelse af bolte eller beslag. De sænkes ned over et faststøbt kendt stålprofil , ved en not i rammen. På den fri-flange stålprofillet kan påsvejses yderlig profil for højere støjskærme. Konstruktionen kan være således at den giver større styrke forneden , samtidig med at lameller opnår større afstand 6o til bagvæg, dette vil være egnet som renatorpanel for de meget lave frekvenser. Som den beskrevne støjvæg fremstår den i sig selv som en konstruktion der er estetisk. Her kan indbygges armeret glas i udvalgte rammer for udsyn, lys og estetik.In the absorbent material, the noise is absorbed. The frames are manufactured industrially in a workshop. The frame assembly is simple 55 without the use of bolts or fittings. They are lowered over a molded known steel profile, by a groove in the frame. On the free-flange steel profile additional profile can be welded for higher noise screens. The construction may be such that it gives greater strength at the bottom, while lamellae achieve a greater distance 6o to the rear wall, this will be suitable as a renator panel for the very low frequencies. Like the noise wall described, it in itself appears as a construction that is aesthetic. Here, reinforced glass can be built into selected frames for vision, light and aesthetics.

65 Opfindelsen forklares følgende i detailer:Fig. 1 viser et lodret-snit af støjvæggen.Viste vandret ramme(l) fungerer dels for vindtryk, samt for at slår lydstråler ( C) indbag konstruktionen.The invention is explained in detail in the following: FIG. 1 shows a vertical section of the noise wall. Displayed horizontal frame (l) works partly for wind pressure, as well as for beating sound rays (C) inboard construction.

På de lodrette rammestykker(2) er fræset riller (3) ca. 6o° til skrålaraeller(4). Skrålamellerne består af vejrbestandigt materi-7o ale der monteres på listerne (5). Lamellerne fastholdes efter ønske med skrue (6)(7)Et pyntenet der er vejrfast monteres til dækning af absorptionsmaterialet (8) . Bagbeklædningen består af gips (9) eller ligende samt et vejrbestandigt materiale (lo). Pyntelister(ll) er monteret , afstandslister (12) .On the vertical frame pieces (2), milled grooves (3) are approx. 6o ° to ratchet rails (4). The baffle lamella consists of weather-resistant material that is mounted on the moldings (5). The louvers are retained as desired with screw (6) (7) A weatherproof ornaments are mounted to cover the absorbent material (8). The back cover consists of plaster (9) or similar and a weatherproof material (lint). Decoration moldings (II) are mounted, spacers (12).

Rammerne monteres på et kendt stålprofil (15) der er faststøbt.The frames are mounted on a known steel profile (15) which is molded.

side 2 75 i DK 95 00318 U3page 2 75 of DK 95 00318 U3

Ved nedsænkningen føres flab(l8) ind i not (17)· Rammen hviler på sokkelelement(14·)på hvilke der er monteret tætningslister (13) . På fig 2 er vist et vandret snit der 8o viser stålprofillets placering og mulighed for nedsænkning. På den fri flab kan påsvejses forstækning (19) af stolpe. På fig 3 er vist opstalt ,hvor et rammeelement (2l) sænkes ned mellem stålprofilerne (15) til sokkelelement (14)·At the immersion, flap (l8) is inserted into groove (17) · The frame rests on the base element (14 ·) on which sealing strips (13) are mounted. Fig. 2 shows a horizontal section showing 8o the location of the steel profile and the possibility of immersion. On the free flab, reinforcement (19) of post can be welded. Fig. 3 shows an arrangement where a frame element (2l) is lowered between the steel profiles (15) for the base element (14) ·

Nogle rammer udføres som skråstillet vinduer(22)· side 3Some frames are made as slanted windows (22) · page 3

Claims

DK 95 00318 U3 Known noise screens do not take into account the need to avoid reflection, which is the deterioration of noise screens. A solution with unidirectional bowl slats of about 45 ° is known. The noise wall according to claim 1 is characterized in that every other 5 slats are inclined approx. 6o ° and each other is approx. horizontal, The slab which is horizontal functions according to claim 2 at the same time as a supporting element. lO The slab which is inclined is characterized as claim 3 by a simple mounting and so that * it can be placed at different distances to the back wall, for noise technical reasons. The noise wall according to claim 4 is simply mounted in a known steel profile with one flap in groove on the frame, while the opposite flap 15 is free of welding steel profile. As claimed in claim 5, the noise wall is characterized by the same construction as mentioned above, aesthetically. page 4