EP0901536B1 - Track soundproofing arrangement - Google Patents
Track soundproofing arrangement Download PDFInfo
- Publication number
- EP0901536B1 EP0901536B1 EP97922748A EP97922748A EP0901536B1 EP 0901536 B1 EP0901536 B1 EP 0901536B1 EP 97922748 A EP97922748 A EP 97922748A EP 97922748 A EP97922748 A EP 97922748A EP 0901536 B1 EP0901536 B1 EP 0901536B1
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- EP
- European Patent Office
- Prior art keywords
- slab
- sound
- proofing device
- carrying
- portions
- 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
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- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01B—PERMANENT WAY; PERMANENT-WAY TOOLS; MACHINES FOR MAKING RAILWAYS OF ALL KINDS
- E01B19/00—Protection of permanent way against development of dust or against the effect of wind, sun, frost, or corrosion; Means to reduce development of noise
- E01B19/003—Means for reducing the development or propagation of noise
Definitions
- the invention relates to a soundproofing device for tracks, on the rails the sound-absorbing plates mounted on the track, which have elastic profiles the rails are supported, the plates arranged between the rails Bridge the space between the rails in a self-supporting manner.
- the invention further relates on sound absorbing panels for such a soundproofing device.
- the plates arranged between the rails of the track consist of three layers or layers that extend over elastic profiles on the rail foot, Support the web and the underside of the head.
- the upper layer consists of steel wire mesh, the edge of which is glued, welded or vulcanized into the profile.
- the middle layer is designed as a sound absorption layer and consists of glass wool or rock wool. This sound absorption layer lies on the lower layer, which is designed as a perforated wall or grate and is supported in a recess in the profile in the region of the rail foot.
- the plates are also arranged on the outside of the rail and angled upward at the ends in order to form a lateral soundproofing wall.
- Such mineral wool panels have sufficient sound absorption at high frequencies, but have inadequate sound insulation at low frequencies.
- Another disadvantage of this construction is that the walkable perforated wall made of steel wire mesh can become detached from its anchoring in the profiles at higher and repeated loads, so that the sound absorption layer underneath can be damaged.
- the dust penetrating through the perforated wall can be deposited on the top of the sound absorption layer and thus the sound damping effect can deteriorate progressively.
- a soundproofing device for tracks is known in which panels made of wood fiber concrete are arranged between the rails of the track, which rest on the sleepers of the track and laterally more elastic with an intermediate layer Lay strips on the rails. There is no unsupported storage of these plates.
- the invention has for its object to provide a soundproofing device for tracks sound-absorbing panels to create a good sound absorption or damping over the entire frequency range essential for the sound level of rail traffic has, with a permanent mechanical Strength of the device should be guaranteed.
- the soundproofing device initially mentioned type according to the invention solved in that the Plates consist of particles made of porous lightweight material, which are connected at certain points with a binder, and that the Slabs have embedded reinforcement and are uncovered are.
- the above can Objectives are met well.
- the particular of the wheels of a rail vehicle and from the rails Airborne sound is emitted from the surface of the panels
- Pores of the particles are absorbed and can also fine spaces between the particles, leaving the structure through spaces or channels between the particles penetrate deeper into the plate to gradually complete there to be subdued. Due to the reinforcement of the slabs too ensures their accessibility.
- the plates is advantageously provided that the top of the panels is textured, being even better Results can be achieved if the structuring is irregular is.
- the top of the plates is preferably parallel to the rails extending ribs, whereby a structurally simple to manufacture results.
- the ribs have a trapezoidal shape Have a cross-section, as this means that the angle falls Sound waves can be better absorbed.
- the wall of the cavity resonators and their sound openings with a sound absorbing structure are provided, and / or if the wall of the cavity resonators and their tubular sound openings with a sound-absorbing layer are provided.
- the cavities forming the cavities after are designed to be open at the bottom and with a lower plate are covered.
- the cavity resonators forming cavities open downwards are trained and together with the track bed Form resonance cavity.
- the damped resonance frequency of the cavity resonators within a frequency range from 150 to 1000 Hz, preferably is between 500 and 1000 Hz.
- a special embodiment is also within the scope of the invention provided in which the installation and removal the one to be provided between the two rails of a track Plates can be done in a very simple way.
- This embodiment of the soundproofing device is thereby characterized in that the one between the two rails
- the track lying space is bridged with partial plates arranged in pairs is, each with at least one support rib in the Latch chambers of the rails engage, the partial plates each pair of plates on their mutually facing edges are supported on each other and in this case with each partial plate meandering along the edge facing the other partial plate alternating successive support sections and support sections are provided, wherein the support sections through by the Outgoing plate top and up to the other partial plate facing depressions are formed and under the supporting sections starting from the underside of the plate Indentations above are formed, which are complementary are formed to the depressions of the support sections, and the Supporting sections of a partial plate on the support sections of the other sub-plate and the support sections of the other sub-plate rest on the support sections of a partial plate.
- Plate pairs can be used when the partial plates are unfolded simply put together, after which the partial panels are no problem leveling the pair of plates between the rails can be inserted, and it will also be the sub-panels Loads not pushed apart.
- a preferred type of the latter embodiment which is characterized in that on those surfaces which the partial plates of a plate pair lie against each other, Projections and depressions shaped complementary to the projections, in which the projections snap into place for mutual Locking of the partial plates are provided, has the advantage that the cohesion of the partial plates of a plate pair also is secured over a very long period of time even when unfavorable Vibrations affect the sub-panels.
- Such a crowning can be on one Partial plate by one, of which the other partial plate of the Plate pair facing edge outgoing surface section, the extending from the underside of the plate, and a subsequent surface section, which is the bottom approaching the plate are formed. If you want one such formation of the sub-plates additionally a latching it is advantageous if you train them to that down at the end edges of the support sections pointing projections and on the wings of the support sections complementary depressions are provided for these projections.
- the domed wings are shaped according to a toothing, which up to for leveling the position of the partial plates of the respective plate pair a sliding movement or rolling movement of each other facing wings and supporting surfaces on each other and in the leveled position of these partial plates against one Movement of these partial plates to each other blocks.
- Partial plates favorable geometry, if one provides that the partial plates on the mutually facing edges from the underside of the plate starting from the top to be rounded, whereby the radius of curvature is equal to or less than the distance between these edges and the rail side edges of the Is partial panels. It is also a simple assembly the partial plates of a plate pair advantageous, if one provides that the two partial plates of a pair of plates on the underside of the plate approximately along a straight line apart. However, if you want the highest possible load capacity of the plate pair, it is favorable if one provides that the two partial plates of a plate pair on the The underside of the plate should be meandering.
- the reinforcement provided in the sub-slabs changes extends over the plate surface and into the support sections and engages in the support sections and in the support ribs. It is also cheap if you provide that between the on the support sections provided wings and on the support sections provided support surfaces an elastic and / or shock-absorbing insert or coating is provided.
- a sound absorbing plate according to the invention is thereby characterized in that the plate is made of porous particles
- Lightweight material is made, which is connected at certain points with a binder are that the plate on opposite edges with support ribs for engaging in the link chambers of rails, that the plate has an embedded surface reinforcement, and that in the plate cavity resonators with one Large area of the plate directed tubular sound openings, whose cross section is significantly smaller than the cross section of the cavity resonators, are formed, which large area to form the top is provided when installing the plate in the track.
- Hiebei is it is advantageous if those forming the cavity resonators Cavities to the large area that the tubular Side of the plate facing away from the sound openings, expanding are openly trained.
- Embodiments of a plate designed according to the invention which for the aforementioned Training with partial plates to be assembled into a pair of plates are provided, are characterized in that the Plate consists of particles made of porous lightweight material, which with a binder are put together so that the plate is an embedded Reinforcement has that the plate on one edge side with a support rib for engaging in the tab chambers of Rails is provided and on the opposite of this support rib Edge side in meandering succession of supporting sections and has support portions, the support portions by starting from the top of the plate and up to the edge reaching depressions are formed and under the support sections starting from the underside of the plate, facing upwards Depressions are formed, which are complementary to the Depressions of the support sections are shaped.
- the plate cavity resonators with a large area of the plate directed tubular sound openings are formed, which large area to form the Top is provided when installing the plate in the track. It is further advantageous if the provided in the plate Reinforcement extends over the entire slab area and in the support sections and in the support sections and in the Rib is enough. If desired, the plates or partial plates also with a preferably running along the edge made of metal or fiber-reinforced plastic, Frame.
- the generally rectangular Plates 3 have the rails 2 along both of them extending edges projecting support ribs 4, which with the interposition of elastic profiles 5, e.g. made of rubber or elastomer, on the rail base 6, on the rail web 7 and on the Support the underside of the rail head 8 of the rails 2.
- a lightweight material used for example plastic granules, granular or spherical and fired alumina particles, granular slag particles, or similar burned natural or artificial manufactured materials
- these particles with a suitable Plastic binders or cement are connected at certain points, so that small gaps or channels 10 remain, one Air shutter pipe and a drain of penetrating rain or Allow melt water.
- the one on the plates 3 impinging airborne sound is on the surface of the plates 3 absorbed by the pores of the particles 9 and can via the gaps or channels remaining between the particles 9 10 penetrate deeper into the plate 3 to gradually be absorbed there to become.
- the surface of the plates 3 by structuring be enlarged.
- the top 12 of the Plates 3 with parallel to the rails 2 and in Spaced ribs 13 may be provided, which, as shown in Figure 3, a trapezoidal cross-section and have a height a above the rail head 8, which is a permissible Value of e.g. Not exceed 5 cm.
- the structuring can also be irregular, e.g. the distance of the Ribs 13 increases or decreases relative to each other.
- the Top 12 can also, for example, truncated cones, truncated pyramids, Cylinders, cuboids, etc. can be provided either in the same or at different distances from each other are.
- the tubular sound openings 15 are provided on the top 12 of the plates 3.
- the cavity resonators 14 forming cavities frusto-conical and down formed open, the openings thus formed through one, e.g. glued to the plate 3, sub-plate 16 covered are to form the cavity resonator 14.
- the cavities forming the cavity resonators left open at the bottom so that it can be the only shown schematically with a dash-dotted line Track bed 17 (e.g.
- the cavities forming cavities 14 can also be of the Conical shape different, e.g. spherical, cylindrical, pyramid-shaped, etc. to be different To achieve frequency behavior in sound absorption.
- the volumes of the cavity resonators 14 and Dimensions of the tubular sound openings can be varied in order the desired frequency response or frequency absorption spectrum to achieve.
- the tubular sound openings 15 open, as shown in Figure 2, perpendicular to the top 12 of the plate 3. In a variation of this arrangement, the tubular sound openings 15 also open at an angle to the top 12 of the plates 3, to better absorb oblique sound waves.
- the manufacture of the plates 3 with the cavity resonators 14 can be done in a rectangular shape, in the positive shapes the cavity resonators with attached pipe pieces for the sound openings are used, whereupon the shape with the Particle 9 and a binder filled and after curing of the binder is removed from the mold.
- too prefabricated cavity resonators with attached pipe sections can be used as a sound opening in the form, either consist of a suitable sound absorbing material or provided with a layer of sound-absorbing material on the inside are.
- the rails 2 can also on the outside of the rail the rails 2 sound absorbing plates with cavity resonators be provided.
- the one on the right rail 2 Plate 18 shown with a dash-dotted line is on one End, similar to the plate 3 lying between rails 2 the rail 2 via an elastic profile 5 and at the other end supported by an elastic strip 19 and by means of a Fastening element, in particular a screw 20, fixed.
- the one on the left rail 2, also with dash-dotted lines Plate 21 shown in line is the same as that Plate 18 supported and fixed, but has one on the outside end area bent at the top to create a soundproof wall form.
- the two plates 18, 21 also have reinforcement (not shown) and, if necessary, structuring in the form of ribs (not shown). If desired, you can also use a plate that runs along the edge Frame.
- a soundproofing device designed according to the invention the space between the two rails 2 of a track 1 22 with paired sound-absorbing partial plates 3a, 3b filled or bridged.
- These partial plates 3a, 3b have Support ribs 4, which in the tab chambers 23 of the rails 2nd intervene, and there are between the support ribs 4 and Rails 2 elastic profiles 5 with an approximately C-shaped cross section inserted.
- the partial plates 3a, 3b are included their support ribs 4 on the rail base 6 and laterally against the Rail web 7 supported and upwards by engagement under held the rail head 8.
- Bridge the partial plates 3a, 3b the distance 24 between the rails 2 is self-supporting.
- each of the partial plates 3a, 3b is provided with a plurality of supporting ribs 4, which are spaced from each other by the for the Rails 2 provided fasteners 25 accessible to let. But you can also choose a different plate size and panel mounting arrangement on each panel as well provide only one support rib 4.
- each partial plate 3a and 3b along the the other partial plate 3b or 3a facing edge 15 or 16 meandering alternating successive support sections 28th and support sections 29 are provided, the support sections 28 through depressions 30 starting from the top 12 of the plate are formed, which face up to that of the other partial plate Reach the edge; under the support sections 29 are of the Plate underside 31 outgoing, upward, depressions 32 formed, and there are the support portions of the Sub-plate 3a on the support portions of sub-plate 3b and Supporting sections of the partial plate 3b on the support sections of the Partial plate 3a on; the depressions 30 are to the depressions 32 designed complementary, so that on the support sections 29 formed by the depressions 32 support surfaces 34 in substantially full on the through the depressions 30 on the Support sections 28 formed wings 33 rest.
- the wings 33 provided in the support sections 28 have a cambered shape, and there is such a cambered Shape also in the support surfaces provided on the support sections 29 34 before, and it is due to this cambered form of the above Surfaces create a form cohesion of the partial plates 3a, 3b, which in the leveled position of the partial plates 3a, 3b a mutual movement of these partial plates in the direction the plate level (arrows 36) inhibits. Furthermore, are on the support surfaces 34 projections 37 and 33 wells on the wings 38, which are complementary to the projections 37, provided; in the leveled position of the partial plates, the Projections 37 into the recesses 38 so that there is a mutual locking of the partial plates 3a, 3b results.
- an elastic and / or shock-braking effect Inlay or coating can be provided.
- the wings 33 provided on the support sections extend from the edge 26 or 27 of the relevant sub-plate 3a or 3b starting, first steep away from the underside 31 of the plate rising and then flattening, what kind of joining the partial plates to the plate pairs is advantageous. Geometric seen it is favorable if such a domed shape Wings are shaped according to a toothing, which up to the leveled position of the partial plates 3a, 3b of the respective Plate pair a sliding movement or rolling movement of the wings and support surfaces facing each other enables, and in the leveled position (Fig. 5 to 7) locks these partial plates against movement to one another. This surface shape corresponding geometrically to a toothing can extend to the top of the plate 12.
- the projections 37 can, as shown in FIGS. 5 to 8, provided on the end edges 39 of the support sections 29 be what brings advantages when joining the sub-panels may, but it is also possible to such projections 37 on others Position, e.g. slightly moved away from the edge of the support surfaces.
- Both in the embodiment shown in Figures 5 to 7 as well as in the variant shown in Fig.10 are the two partial plates 3a, 3b of a plate pair on the Underside of plate 31 interlocking, so that the mutually facing edges of the partial plates 3a, 3b run along the underside of the plate following a meandering line 43. This results in a very close bond of the partial plates 3a, 3b forming a pair of plates.
- FIGS. 11 to 16 are the partial plates 3a, 3b on the mutually facing edges 26, 27 starting from the underside of the plate 31 rounded upwards shaped, the radius of curvature of this rounding equal to or less than the distance 41 between the Edges 26, 27 and the rail-side edges 42 of the partial plates 3a, 3b. This measure is also possible for you uninhibited process of inserting the partial panels advantageous.
- the reinforcement 11 provided in the sub-slabs over the whole surface extension of the partial plates 3a, 3b is sufficient and here, as indicated by the broken line in FIG. 8, both in the support sections 28 and in the support sections 29 as well as in the support ribs 4 engages.
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- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Building Environments (AREA)
- Soundproofing, Sound Blocking, And Sound Damping (AREA)
- Railway Tracks (AREA)
- Power-Operated Mechanisms For Wings (AREA)
- Devices Affording Protection Of Roads Or Walls For Sound Insulation (AREA)
- Fittings On The Vehicle Exterior For Carrying Loads, And Devices For Holding Or Mounting Articles (AREA)
- Bridges Or Land Bridges (AREA)
- Signal Processing Not Specific To The Method Of Recording And Reproducing (AREA)
- Noise Elimination (AREA)
- Magnetic Heads (AREA)
- Holo Graphy (AREA)
Abstract
Description
Die Erfindung betrifft eine Schallschutzeinrichtung für Gleise, mit an den Schienen des Gleises gelagerten schallabsorbierenden Platten, welche über elastische Profile an den Schienen abgestützt sind, wobei die zwischen den Schienen angeordneten Platten den Raum zwischen den Schienen freitragend überbrücken. Des weiteren bezieht sich die Erfindung auf schallabsorbierende Platten für eine solche Schallschutzeinrichtung.The invention relates to a soundproofing device for tracks, on the rails the sound-absorbing plates mounted on the track, which have elastic profiles the rails are supported, the plates arranged between the rails Bridge the space between the rails in a self-supporting manner. The invention further relates on sound absorbing panels for such a soundproofing device.
Bei einer durch die DE 36 02 313 A1 bekannten Schallschutzeinrichtung der vorgenannten
Art bestehen die zwischen den Schienen des Gleises angeordneten Platten aus drei
Lagen oder Schichten, die sich über elastische Profile am Schienenfuß,
-steg und an der -kopfunterseite abstützen. Die obere Lage besteht aus begehbarem Stahldrahtgewebe,
deren Rand in das Profil eingeklebt, eingeschweißt oder einvulkanisiert ist.
Die mittlere Lage ist als Schallabsorptionsschicht ausgebildet und besteht aus Glaswolle
oder Steinwolle. Diese Schallabsorptionsschicht liegt auf der unteren Lage auf, welche
als Lochwand oder Rost ausgebildet und in einer Ausnehmung des Profiles im Bereich des
Schienenfußes abgestützt ist. Gemäß einer weiteren Ausführungsform sind die Platten auch
an der Schienenaußenseite angeordnet und an den Enden nach oben abgewinkelt, um eine
seitliche Schallschutzwand zu bilden. Solche Platten aus Mineralwolle weisen zwar bei
hohen Frequenzen eine ausreichende Schalldämpfung auf, haben aber bei tiefen Frequenzen
eine ungenügende Schalldämpfung. Weiters ist bei dieser Konstruktion von Nachteil, daß
sich die begehbare Lochwand aus Stahldrahtgewebe bei einer höheren und mehrmaligen
Belastung aus ihrer Verankerung in den Profilen lösen kann, so daß die darunterliegende
Schallabsorptionsschicht beschädigt werden kann. Außerdem kann sich auf der Oberseite
der Schallabsorptionsschicht der durch die Lochwand durchdringende Staub ablagern und
somit die Schalldämpfungswirkung zunehmend verschlechtern.In the case of a soundproofing device of the aforementioned type known from
Support the web and the underside of the head. The upper layer consists of steel wire mesh, the edge of which is glued, welded or vulcanized into the profile. The middle layer is designed as a sound absorption layer and consists of glass wool or rock wool. This sound absorption layer lies on the lower layer, which is designed as a perforated wall or grate and is supported in a recess in the profile in the region of the rail foot. According to a further embodiment, the plates are also arranged on the outside of the rail and angled upward at the ends in order to form a lateral soundproofing wall. Such mineral wool panels have sufficient sound absorption at high frequencies, but have inadequate sound insulation at low frequencies. Another disadvantage of this construction is that the walkable perforated wall made of steel wire mesh can become detached from its anchoring in the profiles at higher and repeated loads, so that the sound absorption layer underneath can be damaged. In addition, the dust penetrating through the perforated wall can be deposited on the top of the sound absorption layer and thus the sound damping effect can deteriorate progressively.
Aus der NL-A-9400910 ist eine Schallschutzeinrichtung für Gleise bekannt, bei der zwischen den Schienen des Gleises aus Holzfaserbeton bestehende Platten angeordnet sind, welche auf den Schwellen des Gleises aufliegen und seitlich unter Zwischenlage elastischer Streifen an den Schienen anliegen. Es liegt dabei keine freitragende Lagerung dieser Platten vor.From NL-A-9400910 a soundproofing device for tracks is known in which panels made of wood fiber concrete are arranged between the rails of the track, which rest on the sleepers of the track and laterally more elastic with an intermediate layer Lay strips on the rails. There is no unsupported storage of these plates.
Der Erfindung liegt die Aufgabe zugrunde, eine Schallschutzeinrichtung für Gleise mit schallabsorbierenden Platten zu schaffen, die eine gute Schallabsorption bzw. -dämpfung über den gesamten für die Schallpegel des Schienenverkehrs wesentlichen Frequenzbereich aufweist, wobei auch eine dauerhafte mechanische Festigkeit der Einrichtung gewährleistet sein soll.The invention has for its object to provide a soundproofing device for tracks sound-absorbing panels to create a good sound absorption or damping over the entire frequency range essential for the sound level of rail traffic has, with a permanent mechanical Strength of the device should be guaranteed.
Diese Aufgabe wird bei der Schallschutzeinrichtung der eingangs genannten Art erfindungsgemäß dadurch gelöst, daß die Platten aus Teilchen aus porösen Leichtbauwerkstoff bestehen, die mit einem Bindemittel punktuell verbunden sind, und daß die Platten eine eingebettete Bewehrung aufweisen und unbedeckt angeordnet sind. Durch diese Ausbildung kann der vorstehend angeführten Zielsetzung gut entsprochen werden. Der insbesondere von den Rädern eines Schienenfahrzeugs und von den Schienen ausgehende Luftschall wird an der Oberfläche der Platten von den Poren der Teilchen absorbiert und kann auch bei Wahl eines, feine Zwischenräume zwischen den Teilchen freilassenden, Gefüges über zwischen den Teilchen vorliegende Zwischenräume oder Kanäle tiefer in die Platte eindringen, um dort allmählich vollständig gedämpft zu werden. Durch die Bewehrung der Platten ist auch deren Begehbarkeit gewährleistet.This task is carried out by the soundproofing device initially mentioned type according to the invention solved in that the Plates consist of particles made of porous lightweight material, which are connected at certain points with a binder, and that the Slabs have embedded reinforcement and are uncovered are. Through this training, the above can Objectives are met well. The particular of the wheels of a rail vehicle and from the rails Airborne sound is emitted from the surface of the panels Pores of the particles are absorbed and can also fine spaces between the particles, leaving the structure through spaces or channels between the particles penetrate deeper into the plate to gradually complete there to be subdued. Due to the reinforcement of the slabs too ensures their accessibility.
Zur weiteren Verbesserung der Schallabsorptionseigenschaften der Platten ist in vorteilhafter Weise vorgesehen, daß die Oberseite der Platten strukturiert ist, wobei noch bessere Resultate erzielt werden können, wenn die Strukturierung unregelmäßig ist.To further improve the sound absorption properties the plates is advantageously provided that the top of the panels is textured, being even better Results can be achieved if the structuring is irregular is.
Vorzugsweise ist die Oberseite der Platten mit parallel zu den Schienen verlaufenden Rippen versehen, wodurch sich eine baulich einfach herzustellende Strukturierung ergibt.The top of the plates is preferably parallel to the rails extending ribs, whereby a structurally simple to manufacture results.
Es ist auch von Vorteil, wenn die Rippen einen trapezförmigen Querschnitt aufweisen, da dadurch schräg einfallende Schallwellen besser absorbiert werden können.It is also beneficial if the ribs have a trapezoidal shape Have a cross-section, as this means that the angle falls Sound waves can be better absorbed.
Eine zusätzliche Verbesserung der Schallabsorptionseigenschaften der Platten wird dadurch erreicht, daß in den Platten Hohlraumresonatoren mit zur Oberseite der Platten gerichteten rohrförmigen Schallöffnungen ausgebildet sind. Auf diese Weise können gezielt bestimmte Frequenzbereiche der auftreffenden Schallwellen absorbiert werden.An additional improvement in sound absorption properties the plates is achieved in that in the plates Cavity resonators facing the top of the plates tubular sound openings are formed. In this way can target specific frequency ranges of the incident Sound waves are absorbed.
Um die schalldämpfende Wirkung der Hohlraumresonatoren zu erhöhen, ist es günstig, wenn die Wandung der Hohlraumresonatoren und deren Schallöffnungen mit einer schalldämpfenden Strukturierung versehen sind, und/oder wenn die Wandung der Hohlraumresonatoren und deren rohrförmige Schallöffnungen mit einer schalldämpfenden Schicht versehen sind. To the sound absorbing effect of the cavity resonators too increase, it is beneficial if the wall of the cavity resonators and their sound openings with a sound absorbing structure are provided, and / or if the wall of the cavity resonators and their tubular sound openings with a sound-absorbing layer are provided.
Gemäß einer baulich einfachen Ausführungsform ist vorgesehen, daß die die Hohlraumresonatoren bildenden Hohlräume nach unten erweiternd offen ausgebildet sind und mit einer Unterplatte abgedeckt sind. Bei einer anderen ebenfalls baulich einfachen Ausführungsform ist vorgesehen, daß die die Hohlraumresonatoren bildenden Hohlräume nach unten erweiternd offen ausgebildet sind und zusammen mit der Gleisbettung einen Resonanzhohlraum bilden.According to a structurally simple embodiment, that the cavities forming the cavities after are designed to be open at the bottom and with a lower plate are covered. In another, also structurally simple embodiment provides that the cavity resonators forming cavities open downwards are trained and together with the track bed Form resonance cavity.
Es hat sich in der Praxis als günstig erwiesen, wenn die gedämpfte Resonanzfrequenz der Hohlraumresonatoren innerhalb eines Frequenzbereiches von 150 bis 1000 Hz, vorzugsweise zwischen 500 und 1000 Hz liegt.In practice it has proven to be beneficial if the damped resonance frequency of the cavity resonators within a frequency range from 150 to 1000 Hz, preferably is between 500 and 1000 Hz.
Im Rahmen der Erfindung ist auch eine spezielle Ausführungsform vorgesehen, bei der das Einbauen und das Ausbauen der zwischen den beiden Schienen eines Gleises vorzusehenden Platten auf sehr einfache Weise bewerkstelligt werden kann. Diese Ausführungsform der Schallschutzeinrichtung ist dadurch gekennzeichnet, daß der zwischen den beiden Schienen eines Gleises liegende Raum mit paarig angeordneten Teilplatten überbrückt ist, welche je mit mindestens einer Tragrippe in die Laschenkammern der Schienen eingreifen, wobei die Teilplatten jedes Plattenpaares an ihren einander zugekehrten Rändern aufeinander abgestützt sind und hierbei bei jeder Teilplatte längs des der anderen Teilplatte zugekehrten Randes mäanderartig abwechselnd aufeinanderfolgend Tragabschnitte und Stützabschnitte vorgesehen sind, wobei die Tragabschnitte durch von der Plattenoberseite ausgehende und bis zum der anderen Teilplatte zugekehrten Rand reichende Einsenkungen gebildet sind und unter den Stützabschnitten von der Plattenunterseite ausgehende, nach oben gerichtete Einsenkungen gebildet sind, welche komplementär zu den Einsenkungen der Tragabschnitte geformt sind, und die Stützabschnitte der einen Teilplatte auf den Tragabschnitten der anderen Teilplatte sowie die Stützabschnitte der anderen Teilplatte auf den Tragabschnitten der einen Teilplatte aufliegen. Die gelenkartig zusammenzufügenden Zonen der Teilplatten jedes Plattenpaares können bei aufgefaltet stehenden Teilplatten einfach zusammengesteckt werden, wonach die Teilplatten problemlos unter Einebnung des Plattenpaares zwischen die Schienen eingefügt werden können, und es werden die Teilplatten auch bei Einwirkung von Lasten nicht auseinandergedrückt.A special embodiment is also within the scope of the invention provided in which the installation and removal the one to be provided between the two rails of a track Plates can be done in a very simple way. This embodiment of the soundproofing device is thereby characterized in that the one between the two rails The track lying space is bridged with partial plates arranged in pairs is, each with at least one support rib in the Latch chambers of the rails engage, the partial plates each pair of plates on their mutually facing edges are supported on each other and in this case with each partial plate meandering along the edge facing the other partial plate alternating successive support sections and support sections are provided, wherein the support sections through by the Outgoing plate top and up to the other partial plate facing depressions are formed and under the supporting sections starting from the underside of the plate Indentations above are formed, which are complementary are formed to the depressions of the support sections, and the Supporting sections of a partial plate on the support sections of the other sub-plate and the support sections of the other sub-plate rest on the support sections of a partial plate. The zones of the partial plates to be joined in an articulated manner Plate pairs can be used when the partial plates are unfolded simply put together, after which the partial panels are no problem leveling the pair of plates between the rails can be inserted, and it will also be the sub-panels Loads not pushed apart.
Eine bevorzugte Art der letztgenannten Ausführungsform, welche dadurch gekennzeichnet ist, daß an jenen Flächen, an denen die Teilplatten eines Plattenpaares aneinanderliegen, Vorsprünge und komplementär zu den Vorsprüngen geformte Vertiefungen, in welche die Vorsprünge einrasten, zur gegenseitigen Verrastung der Teilplatten vorgesehen sind, bietet den Vorteil, daß der Zusammenhalt der Teilplatten eines Plattenpaares auch über sehr lange Zeiträume selbst dann gesichert ist, wenn ungünstige Vibrationen auf die Teilplatten einwirken.A preferred type of the latter embodiment, which is characterized in that on those surfaces which the partial plates of a plate pair lie against each other, Projections and depressions shaped complementary to the projections, in which the projections snap into place for mutual Locking of the partial plates are provided, has the advantage that the cohesion of the partial plates of a plate pair also is secured over a very long period of time even when unfavorable Vibrations affect the sub-panels.
Es ist im Sinne eines möglichst einfach und mit geringem Kraftaufwand durchführbaren Einfügungsvorganges der Teilplatten zwischen die Schienen und im Sinne der Möglichkeit eines einfachen Ausbauens der Teilplatten von Vorteil, wenn man vorsieht, daß die in den Tragabschnitten vorgesehenen Tragflächen von dem der anderen Teilplatte des Plattenpaares zugewandten Rand ausgehend von der Plattenunterseite weg zuerst steil ansteigend und dann flacher werdend geformt sind. Hierbei ist es weiters günstig und auch zum Sichern eines über lange Zeiträume stabilen Zusammenhaltes der Teilplatten in ihrem eingebauten Zustand von Vorteil, wenn man vorsieht, daß die in den Tragabschnitten vorgesehenen Tragflächen eine bombierte Form haben, welche in der eingeebneten Stellung der Teilplatten des jeweiligen Plattenpaares eine gegenseitige Bewegung dieser Teilplatten in Richtung der Plattenebene hemmt. Eine solche Bombierung kann an einer Teilplatte durch einen, von dem der anderen Teilplatte des Plattenpaares zugewandten Rand ausgehenden Flächenabschnitt, der sich von der Unterseite der Platte entfernend verläuft, und einen darauffolgenden Flächenabschnitt, der sich der Unterseite der Platte nähernd verläuft, gebildet werden. Will man bei einer derartigen Ausbildung der Teilplatten ergänzend eine Verrastung vorsehen, ist es vorteilhaft, wenn man diese dahingehend ausbildet, daß an den Stirnrändern der Stützabschnitte nach unten weisende Vorsprünge und an den Tragflächen der Tragabschnitte zu diesen Vorsprüngen komplementäre Vertiefungen vorgesehen sind.In the sense of one it is as simple as possible and with little Effortable insertion process of the sub-panels between the rails and in the sense of the possibility of a simple Removing the partial panels is an advantage if you plan to that the wings provided in the support sections of the the other partial plate of the plate pair facing edge starting first rising steeply from the underside of the plate and then flattened out. Here it is further cheap and also to secure a stable over long periods Cohesion of the partial panels in their installed state of Advantage if it is provided that the provided in the support sections Wings have a convex shape, which in the leveled position of the partial plates of the respective plate pair a mutual movement of these partial plates in the direction inhibits the plate level. Such a crowning can be on one Partial plate by one, of which the other partial plate of the Plate pair facing edge outgoing surface section, the extending from the underside of the plate, and a subsequent surface section, which is the bottom approaching the plate are formed. If you want one such formation of the sub-plates additionally a latching it is advantageous if you train them to that down at the end edges of the support sections pointing projections and on the wings of the support sections complementary depressions are provided for these projections.
Besonders günstig für den Ablauf des Einebnungsvorganges beim Einbau der Teilplatten und für das Erzielen einer möglichst stabilen Lage der beiden Teilplatten eines Plattenpaares zueinander im eingebauten Zustand ist eine Ausführungsform, welche dadurch gekennzeichnet ist, daß die bombiert geformten Tragflächen entsprechend einer Verzahnung geformt sind, welche bis zur eingeebneten Stellung der Teilplatten des jeweiligen Plattenpaares eine Gleitbewegung oder Abrollbewegung der einander zugekehrten Tragflächen und Stützflächen aufeinander ermöglicht und in der eingeebneten Stellung dieser Teilplatten gegen eine Bewegung dieser Teilplatten zueinander sperrt.Particularly favorable for the leveling process when installing the sub-panels and for achieving one if possible stable position of the two partial plates of a plate pair to each other in the installed state is an embodiment which is characterized in that the domed wings are shaped according to a toothing, which up to for leveling the position of the partial plates of the respective plate pair a sliding movement or rolling movement of each other facing wings and supporting surfaces on each other and in the leveled position of these partial plates against one Movement of these partial plates to each other blocks.
Es ergibt sich weiter eine für das Zusammenfügen der Teilplatten eines Plattenpaares und für die darauffolgende Relativbewegung dieser beiden Teilplatten beim Einbauvorgang der Teilplatten günstige Geometrie, wenn man vorsieht, daß die Teilplatten an den einander zugewandten Rändern von der Plattenunterseite ausgehend nach oben zu abgerundet geformt sind, wobei der Krümmungsradius gleich groß wie oder kleiner als der Abstand zwischen diesen Rändern und den schienenseitigen Rändern der Teilplatten ist. Weiter ist es für ein möglichst einfaches Zusammenfügen der Teilplatten eines Plattenpaares vorteilhaft, wenn man vorsieht, daß die beiden Teilplatten eines Plattenpaares an der Plattenunterseite annähernd längs einer Geraden auseinanderliegen. Will man hingegen eine möglichst hohe Tragfähigkeit des Plattenpaares erzielen, ist es günstig, wenn man vorsieht, daß die beiden Teilplatten eines Plattenpaares an der Plattenunterseite mäanderartig ineinandergreifend aneinanderliegen.There is also one for joining the Partial plates of a pair of plates and for the subsequent one Relative movement of these two sub-plates during the installation process Partial plates favorable geometry, if one provides that the partial plates on the mutually facing edges from the underside of the plate starting from the top to be rounded, whereby the radius of curvature is equal to or less than the distance between these edges and the rail side edges of the Is partial panels. It is also a simple assembly the partial plates of a plate pair advantageous, if one provides that the two partial plates of a pair of plates on the underside of the plate approximately along a straight line apart. However, if you want the highest possible load capacity of the plate pair, it is favorable if one provides that the two partial plates of a plate pair on the The underside of the plate should be meandering.
Hinsichtlich des Aufbaues der Teilplatten selbst ist es günstig, wenn die in den Teilplatten vorgesehene Bewehrung sich über die Plattenfläche erstreckt und in die Tragabschnitte und in die Stützabschnitte sowie in die Tragrippen eingreift. Es ist auch günstig, wenn man vorsieht, daß zwischen den an den Tragabschnitten vorgesehenen Tragflächen und den an den Stützabschnitten vorgesehenen Stützflächen eine elastisch und/oder stoßbremsend wirkende Einlage oder Beschichtung vorgesehen ist.With regard to the construction of the sub-panels themselves, it is favorable if the reinforcement provided in the sub-slabs changes extends over the plate surface and into the support sections and engages in the support sections and in the support ribs. It is also cheap if you provide that between the on the support sections provided wings and on the support sections provided support surfaces an elastic and / or shock-absorbing insert or coating is provided.
Eine erfindungsgemäße schallabsorbierende Platte ist dadurch gekennzeichnet, daß die Platte aus Teilchen aus porösem Leichtbauwerkstoff besteht, die mit einem Bindemittel punktuell verbunden sind, daß die Platte an gegenüberliegenden Randseiten mit Tragrippen zum Eingriff in die Laschenkammern von Schienen versehen ist, daß die Platte eine eingebettete Flächenbewehrung aufweist, und daß in der Platte Hohlraumresonatoren mit zur einen Großfläche der Platte gerichteten rohrförmigen Schallöffnungen, deren Querschnitt wesentlich geringer als der Querschnitt der Hohlraumresonatoren ist, ausgebildet sind, welche Großfläche zur Bildung der Oberseite beim Einbau der Platte in das Gleis vorgesehen ist. Hiebei ist es vorteilhaft, wenn die die Hohlraumresonatoren bildenden Hohlräume zu jener Großfläche hin, die an der den rohrförmigen Schallöffnungen abgewandten Seite der Platte liegt, erweiternd offen ausgebildet sind. Eine Weiterbildung ist dabei dadurch gekennzeichnet, daß die die Hohlraumresonatoren bildenden Hohlräume an der den rohrförmigen Schallöffnungen abgewandten Seite mit einer Unterplatte abgedeckt sind. Ausführungsformen einer erfindungsgemäß ausgebildeten Platte, welche für die vorerwähnte Ausbildung mit zu einem Plattenpaar zusammenzufügenden Teilplatten vorgesehen sind, sind dadurch gekennzeichnet, daß die Platte aus Teilchen aus porösem Leichtbaustoff besteht, die mit einem Bindemittel zusammengefügt sind, daß die Platte eine eingebettete Bewehrung aufweist, daß die Platte an einer Randseite mit einer Tragrippe zum Eingriff in die Laschenkammern von Schienen versehen ist und an der dieser Tragrippe gegenüberliegenden Randseite in mäanderartiger Aufeinanderfolge Tragabschnitte und Stützabschnitte aufweist, wobei die Tragabschnitte durch von der Plattenoberseite ausgehende und bis zum Rand reichende Einsenkungen gebildet sind und unter den Stützabschnitten von der Plattenunterseite ausgehende, nach oben gerichtete Einsenkungen gebildet sind, welche komplementär zu den Einsenkungen der Tragabschnitte geformt sind. Vorzugsweise ist dabei vorgesehen, daß in der Platte Hohlraumresonatoren mit zur einen Großfläche der Platte gerichteten rohrförmigen Schallöffnungen ausgebildet sind, welche Großfläche zur Bildung der Oberseite beim Einbau der Platte in das Gleis vorgesehen ist. Hierbei ist es weiter günstig, wenn die in der Platte vorgesehene Bewehrung sich über die ganze Plattenfläche erstreckt und in die Tragabschnitte und in die Stützabschnitte sowie in die Tragrippe reicht. Gewünschtenfalls können die Platten bzw. Teilplatten auch mit einem längs des Randes verlaufenden, vorzugsweise aus Metall oder faserverstärktem Kunststoff bestehenden, Rahmen versehen sein.A sound absorbing plate according to the invention is thereby characterized in that the plate is made of porous particles Lightweight material is made, which is connected at certain points with a binder are that the plate on opposite edges with support ribs for engaging in the link chambers of rails, that the plate has an embedded surface reinforcement, and that in the plate cavity resonators with one Large area of the plate directed tubular sound openings, whose cross section is significantly smaller than the cross section of the cavity resonators, are formed, which large area to form the top is provided when installing the plate in the track. Hiebei is it is advantageous if those forming the cavity resonators Cavities to the large area that the tubular Side of the plate facing away from the sound openings, expanding are openly trained. This is a further training characterized in that the cavities forming the cavity resonators on the side facing away from the tubular sound openings are covered with a lower plate. Embodiments of a plate designed according to the invention, which for the aforementioned Training with partial plates to be assembled into a pair of plates are provided, are characterized in that the Plate consists of particles made of porous lightweight material, which with a binder are put together so that the plate is an embedded Reinforcement has that the plate on one edge side with a support rib for engaging in the tab chambers of Rails is provided and on the opposite of this support rib Edge side in meandering succession of supporting sections and has support portions, the support portions by starting from the top of the plate and up to the edge reaching depressions are formed and under the support sections starting from the underside of the plate, facing upwards Depressions are formed, which are complementary to the Depressions of the support sections are shaped. Preferably provided that in the plate cavity resonators with a large area of the plate directed tubular sound openings are formed, which large area to form the Top is provided when installing the plate in the track. It is further advantageous if the provided in the plate Reinforcement extends over the entire slab area and in the support sections and in the support sections and in the Rib is enough. If desired, the plates or partial plates also with a preferably running along the edge made of metal or fiber-reinforced plastic, Frame.
Die Erfindung wird nachfolgend unter Bezugnahme auf die
Zeichnung weiter erläutert. In der Zeichnung zeigt:
Bei dem in Fig.1 und 2 dargestellten Gleis 1 sind zwischen
den Schienen 2 schallabsorbierende Platten 3 in Längsrichtung
des Gleises nebeneinander angeordnet. Die allgemein rechteckförmigen
Platten 3 weisen an ihren beiden längs den Schienen 2
verlaufenden Rändern vorspringende Tragrippen 4 auf, die sich
unter Zwischenfügung von elastischen Profilen 5, z.B. aus Gummi
oder Elastomer, am Schienenfuß 6, am Schienensteg 7 und an der
Unterseite des Schienenkopfes 8 der Schienen 2 abstützen. Die
Platten 3, deren Oberfläche in Fig.4 vergrößert dargestellt ist,
bestehen aus Teilchen 9 aus porösem Leichtbauwerkstoff, die mit
einem geeigneten Bindemittel zusammengefügt sind. Als Leichtbauwerkstoff
dient beispielsweise Kunststoffgranulat, körnige oder
kugelförmige und gebrannte Tonerdeteilchen, körnige Schlackenteilchen,
oder ähnliche gebrannte natürliche oder künstlich
hergestellte Werkstoffe, wobei diese Teilchen mit einem geeigneten
Kunststoffbinder oder Zement punktuell verbunden sind,
so daß kleine Zwischenräume oder Kanäle 10 verbleiben, die eine
Luftschalleitung und ein Abfließen von eindringendem Regen- oder
Schmelzwasser ermöglichen. Um den Platten 3 eine ausreichende
mechanische Festigkeit zwecks Begehbarkeit der Platten 3 zu
verleihen, sind die Platten 3 mit einer Bewehrung 11, beispielsweise
aus Stahl oder anderen Metallen, faserverstärktem Kunststoff,
Glasfasermatten oder dergl. versehen. Der auf die Platten
3 auftreffende Luftschall wird an der Oberfläche der Platten 3
von den Poren der Teilchen 9 absorbiert und kann über die
zwischen den Teilchen 9 verbleibenden Zwischenräume oder Kanäle
10 tiefer in die Platte 3 eindringen, um dort allmählich absorbiert
zu werden. Um diesen Schallabsorptionseffekt zu erhöhen,
kann die Oberfläche der Platten 3 durch Strukturierung
vergrößert werden. Beispielsweise kann die Oberseite 12 der
Platten 3 mit parallel zu den Schienen 2 verlaufenden und in
Abstand zueinander angeordneten Rippen 13 versehen sein, die,
wie in Fig.3 dargestellt, einen trapezförmigen Querschnitt und
eine Höhe a über den Schienenkopf 8 aufweisen, die einen zulässigen
Wert von z.B. 5 cm nicht überschreitet. Die Strukturierung
kann auch unregelmäßig sein, in dem z.B. der Abstand der
Rippen 13 zueinander zu- oder abnimmt. Als Strukturierung der
Oberseite 12 können beispielsweise auch Kegelstümpfe, Pyramidenstümpfe,
Zylinder, Quader usw. vorgesehen sein, die entweder in
gleichen oder in verschiedenen Abständen zueinander angeordnet
sind.1 and 2 track 1 are between
the
Um den oben erwähnten Schallabsorptionseffekt in einem
breiten Frequenzbereich des Schallpegels noch weiter zu erhöhen,
sind in den Platten 3 Hohlraumresonatoren 14 nach Art des Helmholz-Resonators
ausgebildet, deren rohrförmige Schallöffnungen
15 an der Oberseite 12 der Platten 3 vorgesehen sind. Bei der in
Fig.2 dargestellten Ausführungsform sind die die Hohlraumresonatoren
14 bildenden Hohlräume kegelstumpfförmig und nach unten
offen ausgebildet, wobei die dadurch gebildeten Öffnungen durch
eine, z.B. an die Platte 3 angeklebte, Unterplatte 16 abgedeckt
sind, um den Hohlraumresonator 14 zu bilden. Es kann auch vorteilhaft
sein, die die Hohlraumresonatoren bildenden Hohlräume
nach unten offen zu lassen, damit sie zusammen mit dem zwischen
der nur schematisch mit strichpunktierter Linie dargestellten
Gleisbettung 17 (z.B. Gleisschwellen und Schotterbett oder
Betonplatten-Unterbau) und der Unterseite der betreffenden
Platte 3 liegenden Raum einen Resonanzhohlraum bilden. Die die
Hohlraumresonatoren 14 bildenden Hohlräume können auch von der
Kegelstumpfform abweichend, z.B. kugelförmig, zylindrisch,
pyramidenförmig usw. ausgebildet sein, um ein unterschiedliches
Frequenzverhalten bei der Schallabsorption zu erzielen. Desgleichen
können die Volumina der Hohlraumresonatoren 14 und die
Dimensionen der rohrförmigen Schallöffnungen variiert werden, um
das gewünschte Frequenzverhalten bzw. Frequenzabsorptionsspektrum
zu erzielen. Die rohrförmigen Schallöffnungen 15 münden,
wie in Fig.2 dargestellt, senkrecht zur Oberseite 12 der Platte
3. In Variation dieser Anordnung können die rohrförmigen Schallöffnungen
15 auch schräg zur Oberseite 12 der Platten 3 münden,
um schräg einfallende Schallwellen besser aufnehmen zu können.To the above-mentioned sound absorption effect in one
to further increase the wide frequency range of the sound level,
are in the
Die Herstellung der Platten 3 mit den Hohlraumresonatoren
14 kann in einer rechteckförmigen Form erfolgen, in der Positivformen
der Hohlraumresonatoren mit angesetzten Rohrstücken für
die Schallöffnungen eingesetzt werden, worauf die Form mit den
Teilchen 9 und einem Bindemittel gefüllt und nach dem Aushärten
des Bindemittels entformt wird. Als Positivformen können auch
vorgefertigte Hohlraumresonatoren mit angesetzten Rohrstücken
als Schallöffnung in die Form eingesetzt werden, die entweder
aus einem geeigneten schallabsorbierenden Material bestehen oder
innen mit einer Schicht aus schallabsorbierendem Material versehen
sind.The manufacture of the
Wie in Fig.2 dargestellt, können auch an der Schienenaußenseite
der Schienen 2 schallabsorbierende Platten mit Hohlraumresonatoren
vorgesehen sein. Die bei der rechten Schiene 2
mit strichpunktierter Linie dargestellte Platte 18 ist an einem
Ende, ähnlich wie die zwischen Schienen 2 liegende Platte 3 an
der Schiene 2 über ein elastisches Profil 5 und am anderen Ende
über einen elastischen Streifen 19 abgestützt und mittels eines
Befestigungselementes, insbesondere einer Schraube 20, fixiert.
Die bei der linken Schiene 2, ebenfalls mit strichpunktierter
Linie dargestellte Platte 21 ist in gleicher Weise wie die
Platte 18 abgestützt und fixiert, weist aber außen einen nach
oben abgewinkelten Endbereich auf, um eine Schallschutzwand zu
bilden. Die beiden Platten 18, 21 weisen ebenfalls eine Bewehrung
(nicht dargestellt) sowie gegebenenfalls eine Strukturierung
in Form von Rippen (nicht dargestellt) auf. Gewünschtenfalls
kann man die Platten auch mit einem dem Rand entlang verlaufenden
Rahmen versehen.As shown in Fig.2, can also on the outside of the rail
the
Bei der in den Fig.5 bis 7 dargestellten Ausführungsform
einer erfindungsgemäß ausgebildeten Schallschutzeinrichtung ist
der zwischen den beiden Schienen 2 eines Gleises 1 liegende Raum
22 mit paarig angeordneten schallabsorbierenden Teilplatten 3a,
3b gefüllt bzw. überbrückt. Diese Teilplatten 3a, 3b weisen
Tragrippen 4 auf, welche in die Laschenkammern 23 der Schienen 2
eingreifen, und es sind zwischen die Tragrippen 4 und die
Schienen 2 elastische Profile 5 mit annähernd C-förmigem Querschnitt
eingefügt. Es sind solcherart die Teilplatten 3a, 3b mit
ihren Tragrippen 4 am Schienenfuß 6 und seitlich gegen den
Schienensteg 7 abgestützt und nach oben hin durch Eingriff unter
den Schienenkopf 8 gehalten. Die Teilplatten 3a, 3b überbrücken
den Abstand 24 zwischen den Schienen 2 freitragend. Es sind an
jeder der Teilplatten 3a, 3b mehrere Tragrippen 4 vorgesehen,
welche in Abstand voneinander angeordnet sind, um die für die
Schienen 2 vorgesehenen Befestigungselemente 25 zugänglich zu
lassen. Man kann aber auch bei anderer Wahl der Plattenabmessungen
und Platteneinbauanordnung an jeder Teilplatte auch
nur eine einzige Tragrippe 4 vorsehen.In the embodiment shown in Figures 5 to 7
a soundproofing device designed according to the invention
the space between the two
An ihren einander zugekehrten Rändern 26, 27 sind die
Teilplatten 3a, 3b jedes Plattenpaares aufeinander abgestützt,
so daß jedes Plattenpaar einen den Abstand 24 zwischen den
Schienen 2 freitragend überbrückenden zusammengefügten Körper
bildet. Hierzu sind bei jeder Teilplatte 3a bzw. 3b längs des
der anderen Teilplatte 3b bzw. 3a zugekehrten Randes 15 bzw. 16,
mäanderartig abwechselnd aufeinanderfolgend Tragabschnitte 28
und Stützabschnitte 29 vorgesehen, wobei die Tragabschnitte 28
durch von der Plattenoberseite 12 ausgehende Einsenkungen 30
gebildet sind, welche bis zu dem der anderen Teilplatte zugekehrten
Rand reichen; unter den Stützabschnitten 29 sind von der
Plattenunterseite 31 ausgehende, nach oben gerichtete, Einsenkungen
32 gebildet, und es liegen die Stützabschnitte der
Teilplatte 3a auf den Tragabschnitten der Teilplatte 3b und die
Stützabschnitte der Teilplatte 3b auf den Tragabschnitten der
Teilplatte 3a auf; die Einsenkungen 30 sind zu den Einsenkungen
32 komplementär ausgebildet, so daß die an den Stützabschnitten
29 durch die Einsenkungen 32 gebildeten Stützflächen 34 im
wesentlichen satt auf den durch die Einsenkungen 30 auf den
Tragabschnitten 28 gebildeten Tragflächen 33 aufliegen. Zur vorerwähnten
Ausbildung der Teilplatten kann dabei auch auf die
Darstellung einer solchen Teilplatte in Fig.8 hingewiesen
werden.At their mutually facing
Um die Teilplatten 3a, 3b paarig zwischen die Schienen 2
eines Gleises einzufügen, kann man sie zunächst, wie dies in
Fig.9 dargestellt ist, in aufgefalteter Stellung anordnen, und
dabei mit ihren mäanderartig ausgebildeten Rändern 26, 27 ineinanderstecken,
wobei man auch die elastischen Profile 5,
welche einen C-förmigen Querschnitt haben, zwischen den Tragrippen
4 der Teilplatten 3a, 3b und den Schienen 2 anordnet.
Danach werden die Teilplatten 3a, 3b nach unten geschwenkt bzw.
geklappt, wie durch den Pfeil 35 angedeutet ist, bis sie die in
den Fig.5 bis 7 dargestellte eingeebnete Stellung einnehmen, in
der die Teilplatten 3a, 3b jedes Plattenpaares den Raum 22
zwischen den Schienen 2 freitragend überbrücken.Around the
Die in den Tragabschnitten 28 vorgesehenen Tragflächen 33
haben eine bombierte Form, und es liegt eine solche bombierte
Form auch bei den an den Stützabschnitten 29 vorgesehenen Stützflächen
34 vor, und es wird durch diese bombierte Form der genannten
Flächen ein Formzusammenhalt der Teilplatten 3a, 3b geschaffen,
welcher in der eingeebneten Stellung der Teilplatten
3a, 3b eine gegenseitige Bewegung dieser Teilplatten in Richtung
der Plattenebene (Pfeile 36) hemmt. Weiters sind an den Stützflächen
34 Vorsprünge 37 und an den Tragflächen 33 Vertiefungen
38, welche komplementär zu den Vorsprüngen 37 geformt sind, vorgesehen;
in der eingeebneten Lage der Teilplatten rasten die
Vorsprünge 37 in die Vertiefungen 38 ein, so daß sich eine
gegenseitige Verrastung der Teilplatten 3a, 3b ergibt.The
Zwischen den Tragflächen 33 und den Stützflächen 34 kann
gewünschtenfalls eine elastisch und/oder stoßbremsend wirkende
Einlage oder Beschichtung vorgesehen werden.Can between the
Die an den Tragabschnitten vorgesehenen Tragflächen 33
verlaufen, vom Rand 26 bzw. 27 der betreffenden Teilplatte 3a
bzw. 3b ausgehend, von der Plattenunterseite 31 weg zuerst steil
ansteigend und dann flacher werdend, was für das Zusammenfügen
der Teilplatten zu den Plattenpaaren von Vorteil ist. Geometrisch
gesehen ist es günstig, wenn solche bombiert geformten
Tragflächen entsprechend einer Verzahnung geformt sind, welche
bis zur eingeebneten Stellung der Teilplatten 3a, 3b des jeweiligen
Plattenpaares eine Gleitbewegung oder Abrollbewegung
der einander zugekehrten Tragflächen und Stützflächen aufeinander
ermöglicht, und in der eingeebneten Stellung (Fig.5 bis
7) diese Teilplatten gegen eine Bewegung zueinander sperrt.
Diese geometrisch einer Verzahnung entsprechende Flächenform
kann bis an die Plattenoberseite 12 reichen.The
Die Vorsprünge 37 können, wie in den Fig.5 bis 8 dargestellt,
an den Stirnrändern 39 der Stützabschnitte 29 vorgesehen
sein, was beim Zusammenfügen der Teilplatten Vorteile bringen
kann, aber es ist auch möglich, solche Vorsprünge 37 an anderer
Stelle, z.B. etwas vom Rand der Stützflächen abgerückt, anzuformen.The
Bei der in Fig.10 dargestellten Variante sind die Tragflächen
33 und die Stützflächen 34 größtenteils eben ausgebildet;
zur gegenseitigen Verrastung der Teilplatten 3a, 3b sind
auch in diesem Fall Vertiefungen 38, in welche Vorsprünge 37
eingreifen, vorgesehen.In the variant shown in Figure 10 are the
Sowohl bei der in den Fig.5 bis 7 dargestellten Ausführungsform
als auch bei der in Fig.10 dargestellten Variante
liegen die beiden Teilplatten 3a, 3b eines Plattenpaares an der
Plattenunterseite 31 mäanderartig ineinandergreifend aneinander,
so daß die einander zugekehrten Ränder der Teilplatten 3a, 3b an
der Plattenunterseite einer mäanderartigen Linie 43 folgend verlaufen.
Es ergibt sich solcherart ein sehr inniger Zusammenhalt
der miteinander ein Plattenpaar bildenden Teilplatten 3a, 3b.Both in the embodiment shown in Figures 5 to 7
as well as in the variant shown in Fig.10
are the two
Man kann aber auch die Ausbildung der miteinander in Berührung
bzw. in Eingriff stehenden Abschnitte der Teilplatten
eines Plattenpaares so wählen, daß die einander zugekehrten
Ränder 26, 27 der Teilplatten 3a, 3b an der Plattenunterseite 31
längs einer Geraden 40 aneinanderliegen, wodurch sowohl die Herstellung
der Platten als auch der Ablauf des Zusammenfügungsvorganges
vereinfacht werden kann; eine solche Ausbildung liegt
bei den in den Fig.11 bis 16 dargestellten Ausführungsformen
vor. Viele Details dieser Ausführungsformen sind analog wie bei
den Ausführungsformen der Fig.5 bis 10 ausgebildet, und es kann
deshalb hier in diesem Zusammenhang auf die vorstehenden Erörterungen
zu den Fig.5 bis 10 hingewiesen werden. Es ist bei
der Ausführungsform gemäß den Fig.11 bis 14 eine bombierte Form
der Tragflächen 33 vorgesehen, während die Variante gemäß Fig.16
eine im wesentlichen ebene Ausbildung dieser Tragflächen 33 aufweist.
In beiden Fällen sind Vorsprünge 37, welche in Vertiefungen
38 eingreifen, an den Stirnrändern der Stützabschnitte
angeordnet. Man kann aber, wie bereits oben erwähnt, derartige
Vorsprünge 37 auch an anderer Stelle im Bereich der Stützflächen
plazieren.But you can also get in touch with each other
or engaged portions of the sub-plates
of a pair of plates so that the facing each other
Edges 26, 27 of the
Bei den in Fig.11 bis 16 dargestellten Ausführungsformen
sind die Teilplatten 3a, 3b an den einander zugewandten Rändern
26, 27 von der Plattenunterseite 31 ausgehend nach oben zu abgerundet
geformt, wobei der Krümmungsradius dieser Abrundung
gleich groß wie oder kleiner als der Abstand 41 zwischen den
Rändern 26, 27 und den schienenseitigen Rändern 42 der Teilplatten
3a, 3b ist. Auch diese Maßnahme ist für einen möglichst
hemmungsfreien Ablauf des Einfügungsvorganges der Teilplatten
von Vorteil.In the embodiments shown in FIGS. 11 to 16
are the
Gemäß einer bevorzugten Ausführungsform ist vorgesehen,
daß die in den Teilplatten vorgesehene Bewehrung 11 über die
ganze Flächenerstreckung der Teilplatten 3a, 3b reicht und
dabei, wie dies in Fig.8 strichliert angedeutet ist, sowohl in
die Tragabschnitte 28 und in die Stützabschnitte 29 als auch in
die Tragrippen 4 eingreift.According to a preferred embodiment,
that the
Auch bei den mit Teilplatten gebildeten Ausführungsformen
kann man Hohlraumresonatoren 14 mit Schallöffnungen 15 vorsehen,
wie dies z.B. in den Fig.11 bis 14 dargestellt ist. Ebenso kann
man die Platten auch mit Rahmen 44 versehen, wie dies z.B. in
Fig.11 strichliert angedeutet ist.Also in the embodiments formed with partial plates
you can provide
Claims (28)
- A sound-proofing device for tracks comprising sound absorbing slabs mounted at the rails of the track, the slabs being supported at the rails via elastic sections, wherein the slabs arranged between the rails are only self-supportingly bridging, from rail to rail, the space between the rails, characterised in that the slabs (3; 18; 21) are comprised of particles (9) of porous lightweight building material combined at individual points by a binder, and that the slabs (3; 18; 21) have an embedded areal reinforcement (11) and are arranged without cover.
- A sound-proofing device according to claim 1, characterised in that the upper side (12) of the slabs (3; 18; 21) is structured.
- A sound-proofing device according to claim 2, characterised in that the structuring is irregular.
- A sound-proofing device according to claim 2 or 3, characterised in that the upper side of the slabs (3; 18; 21) is provided with ribs (13) extending in parallel to the rails (2).
- A sound-proofing device according to claim 4, characterised in that the ribs (13) have a trapezoidal cross-section.
- A sound-proofing device according to any one of claims 1 to 5, characterised in that cavity resonators (14) having tubular sound apertures (15) directed to the upper side (12) of the slabs (3; 18; 21) are formed in the slabs (3).
- A sound-proofing device according to claim 6, characterised in that the walls of the cavity resonators (14) and their sound apertures (15) are provided with a sound-dampening structuring.
- A sound-proofing device according to claim 6, characterised in that the walls of the cavity resonators (14) and their tubular sound apertures (15) are provided with a sound-dampening layer.
- A sound-proofing device according to any one of claims 6 to 8, characterised in that the cavities forming the cavity resonators (14) are designed such that they widen downwardly and are open, and are covered by a lower plate (16).
- A sound-proofing device according to any one of claims 6 to 8, characterised in that the cavities forming the cavity resonators (14) are designed such that they widen downwardly and are open and define a resonance cavity together with the space present between the rail bedding (17) and the lower side of the respective slab (3).
- A sound-proofing device according to any one of claims 6 to 10, characterised in that the attenuated resonance frequency of the cavity resonators (14) lies within a frequency range of from 150 to 1,000 Hz, preferably between 500 and 1,000 Hz.
- A sound-proofing device according to any one of claims 1 to 11, characterised in that the space (22) between the two rails (2) of a track (1) is bridged with slab parts (3a, 3b) arranged in pairs, each engaging by at least one carrying rib (4) in the fishing surfaces (23) of the rails (2), the slab parts (3a, 3b) of each slab pair being supported on each other at their facing rims (26, 27), carrying portions (28) and resting portions (29) alternatingly following each other in meander-like fashion at each respective slab part along the rim facing the other slab part, the carrying portions being formed by indentations (30) originating from the slab upper side (12) and extend as far as to the rim facing the other slab part, upwardly directed indentations (32) originating from the slab lower side (31) being formed below the resting portions (29), which indentations are shaped complementary to the indentations of the carrying portions, and that the resting portions of the one slab part rest on the carrying portions of the other slab part, and that the resting portions of the other slab part rest on the carrying portions of the one slab part.
- A sound-proofing device according to claim 12, characterised in that at those surfaces (33, 34), on which the slab parts (3a, 3b) of one slab pair contact each other, projections (37) and depressions (38) shaped complementary to the projections are formed, the projections latchingly engaging in the depressions for a mutual latching of the slab parts (3a, 3b).
- A sound-proofing device according to claim 12 or 13, characterised in that the carrying surfaces (33) provided in the carrying portions (28), originating from the rim facing the other slab part of the slab pair, at first rise steeply, starting from the slab lower side (31), and then flatten.
- A sound-proofing device according to claim 14, characterised in that the carrying surfaces (33) provided in the carrying portions (28) have a convex-curved shape which inhibits a mutual movement of the slab parts (3a, 3b) in the direction of the slab plane (36) in the levelled position of the slab parts (3a, 3b) of the respective slab pair.
- A sound-proofing device according to claim 13 and claim 14 or 15, characterised in that downwardly extending projections (37) are provided at the front rims (39) of the resting portions (29) and depressions (38) complementary to these projections (37) are provided on the carrying surfaces (33) of the carrying portions (28).
- A sound-proofing device according to claim 15, characterised in that the curved carrying surfaces (33) are shaped like a toothing which allows for a sliding movement or rolling movement of the facing carrying surfaces and resting surfaces one on the other, as far as to a levelled position of the slab parts (3a, 3b) of the respective slab pair, and which in the levelled position of these slab parts locks against a movement of these slab parts relative to each other.
- A sound-proofing device according to any one of claims 12 to 17, characterised in that the slab parts (3a, 3b) are rounded at their facing rims (26, 27) from the plate lower side (31) upwards, the radius of curvature being dimensioned to be equal to or smaller than the distance (41) between these rims (26, 27) and the rail-side rims (42) of the slab parts (3a, 3b).
- A sound-proofing device according to any one of claims 12 to 18, characterised in that the two slab parts (3a, 3b) of a slab pair abut each other at the slab lower side (31) approximately along a straight line (40).
- A sound-proofing device according to any one of claims 12 to 18, characterised in that the two slab parts (3a, 3b) of a slab pair abut each other at the slab lower side (31) so as to engage each other in meander-like fashion.
- A sound-proofing device according to any one of claims 12 to 20, characterised in that the reinforcement (11) provided in the slab parts (3a, 3b) extends over the slab area (36) and reaches into the carrying portions (28) and resting portions (29) as well as into the carrying ribs (4).
- A sound-proofing device according to any one of claims 12 to 21, characterised in that an elastically and/or shock-brakingly acting insert or coating is provided between the carrying surfaces (33) provided on the carrying portions and the resting surfaces (34) provided on the resting portions.
- A sound-absorbing slab for a sound-proofing device according to any one of claims 1 to 22, characterised in that the slab (3; 18; 21) is comprised of particles (9) of porous lightweight building material combined by a binder at individual points, that the slab 3 is provided with carrying ribs 4 on opposite rim sides for engagement into the fishing surfaces of rails, that the slab (3; 18; 21) has an embedded areal reinforcement (11), and that cavity resonators (14) are formed in the slab (3; 18; 21) which have tubular sound apertures (15) oriented towards the one large surface of the slab (3; 18; 21), which large surface is intended to form the upper side when installing the slab in the track, the cross-section of the sound apertures being substantially smaller than the cross-section of the cavity resonators.
- A sound-absorbing slab according to claim 23, characterised in that the cavities forming the cavity resonators (14) are designed to widen and to be open towards that large surface which is located at that side of the slab that faces away from the tubular sound apertures (15).
- A sound-absorbing slab according to claim 24, characterised in that the cavities forming the cavity resonators (14) are covered by a lower plate (16) at the side facing away from the tubular sound apertures (15).
- A sound absorbing slab for a sound-proofing device according to any one of claims 12 to 22, characterised in that the slab (3a, 3b) is comprised of particles of porous lightweight building material combined by a binder, that the slab (3a, 3b) has an embedded reinforcement, that the slab (3a, 3b) on one rim side is provided with a carrying rib (4) for engagement in the fishing surfaces of rails and at the rim side opposite this carrying rib (4) comprises meander-like successive carrying portions (28) and resting portions (29), the carrying portions being formed by indentations (30) originating from the slab upper side (12). and extending as far as to the rim, upwardly directed indentations (32) originating from the slab lower side (31) being formed below the resting portions (29) and being shaped complementary to the indentations of the carrying portions.
- A sound-absorbing slab according to claim 26, characterised in that in the slab (3a, 3b) cavity resonators (14) are formed with tubular sound apertures (15) oriented towards the one large surface of the slab (3a, 3b), which large surface is intended to form the upper side when installing the slab in the track.
- A sound-absorbing slab according to claim 26 or 27, characterised in that the reinforcement (11) provided in the slab (3a, 3b) extends over the entire slab area and into the carrying portions (28) and into the resting portions (29) as well as into the carrying rib (4).
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SI9730491T SI0901536T1 (en) | 1996-05-29 | 1997-05-23 | Track soundproofing arrangement |
Applications Claiming Priority (7)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
AT934/96 | 1996-05-29 | ||
AT93496A AT403809B (en) | 1996-05-29 | 1996-05-29 | Soundproofing means for tracks |
AT93496 | 1996-05-29 | ||
AT0101596A AT405426B (en) | 1996-06-11 | 1996-06-11 | RAILWAY COVERING FOR TRACKS |
AT1015/96 | 1996-06-11 | ||
AT101596 | 1996-06-11 | ||
PCT/AT1997/000109 WO1997045592A1 (en) | 1996-05-29 | 1997-05-23 | Track soundproofing arrangement |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0901536A1 EP0901536A1 (en) | 1999-03-17 |
EP0901536B1 true EP0901536B1 (en) | 2002-12-11 |
Family
ID=25594370
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP97922748A Expired - Lifetime EP0901536B1 (en) | 1996-05-29 | 1997-05-23 | Track soundproofing arrangement |
Country Status (14)
Country | Link |
---|---|
US (1) | US6253872B1 (en) |
EP (1) | EP0901536B1 (en) |
JP (1) | JP3822641B2 (en) |
CN (1) | CN100424268C (en) |
AT (1) | ATE229595T1 (en) |
AU (1) | AU738889B2 (en) |
CA (1) | CA2255946C (en) |
DE (1) | DE59708955D1 (en) |
DK (1) | DK0901536T3 (en) |
ES (1) | ES2186891T3 (en) |
HU (1) | HU221872B1 (en) |
NO (1) | NO316078B1 (en) |
TW (1) | TW345603B (en) |
WO (1) | WO1997045592A1 (en) |
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-
1997
- 1997-05-19 TW TW086106684A patent/TW345603B/en not_active IP Right Cessation
- 1997-05-23 DE DE59708955T patent/DE59708955D1/en not_active Expired - Lifetime
- 1997-05-23 DK DK97922748T patent/DK0901536T3/en active
- 1997-05-23 WO PCT/AT1997/000109 patent/WO1997045592A1/en active IP Right Grant
- 1997-05-23 CA CA002255946A patent/CA2255946C/en not_active Expired - Fee Related
- 1997-05-23 ES ES97922748T patent/ES2186891T3/en not_active Expired - Lifetime
- 1997-05-23 US US09/194,505 patent/US6253872B1/en not_active Expired - Lifetime
- 1997-05-23 HU HU9903612A patent/HU221872B1/en not_active IP Right Cessation
- 1997-05-23 AU AU28801/97A patent/AU738889B2/en not_active Ceased
- 1997-05-23 CN CNB971950490A patent/CN100424268C/en not_active Expired - Fee Related
- 1997-05-23 JP JP54125697A patent/JP3822641B2/en not_active Expired - Fee Related
- 1997-05-23 EP EP97922748A patent/EP0901536B1/en not_active Expired - Lifetime
- 1997-05-23 AT AT97922748T patent/ATE229595T1/en active
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1998
- 1998-11-30 NO NO19985600A patent/NO316078B1/en not_active IP Right Cessation
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HU221872B1 (en) | 2003-02-28 |
CA2255946C (en) | 2006-03-14 |
HUP9903612A3 (en) | 2001-08-28 |
CN100424268C (en) | 2008-10-08 |
ES2186891T3 (en) | 2003-05-16 |
DE59708955D1 (en) | 2003-01-23 |
JP2000510921A (en) | 2000-08-22 |
DK0901536T3 (en) | 2003-04-07 |
US6253872B1 (en) | 2001-07-03 |
EP0901536A1 (en) | 1999-03-17 |
ATE229595T1 (en) | 2002-12-15 |
NO985600L (en) | 1998-11-30 |
NO316078B1 (en) | 2003-12-08 |
AU738889B2 (en) | 2001-09-27 |
CN1219989A (en) | 1999-06-16 |
JP3822641B2 (en) | 2006-09-20 |
TW345603B (en) | 1998-11-21 |
NO985600D0 (en) | 1998-11-30 |
AU2880197A (en) | 1998-01-05 |
HUP9903612A2 (en) | 2000-02-28 |
WO1997045592A1 (en) | 1997-12-04 |
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