US3790078A - Vibrator damping of vehicle path - Google Patents
Vibrator damping of vehicle path Download PDFInfo
- Publication number
- US3790078A US3790078A US00146777A US3790078DA US3790078A US 3790078 A US3790078 A US 3790078A US 00146777 A US00146777 A US 00146777A US 3790078D A US3790078D A US 3790078DA US 3790078 A US3790078 A US 3790078A
- Authority
- US
- United States
- Prior art keywords
- bottom plate
- track
- damping
- upper plate
- layer
- 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
Links
Images
Classifications
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01B—PERMANENT WAY; PERMANENT-WAY TOOLS; MACHINES FOR MAKING RAILWAYS OF ALL KINDS
- E01B3/00—Transverse or longitudinal sleepers; Other means resting directly on the ballastway for supporting rails
- E01B3/28—Transverse or longitudinal sleepers; Other means resting directly on the ballastway for supporting rails made from concrete or from natural or artificial stone
- E01B3/38—Longitudinal sleepers; Longitudinal sleepers integral or combined with tie-rods; Combined longitudinal and transverse sleepers; Layers of concrete supporting both rails
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01B—PERMANENT WAY; PERMANENT-WAY TOOLS; MACHINES FOR MAKING RAILWAYS OF ALL KINDS
- E01B1/00—Ballastway; Other means for supporting the sleepers or the track; Drainage of the ballastway
- E01B1/002—Ballastless track, e.g. concrete slab trackway, or with asphalt layers
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01B—PERMANENT WAY; PERMANENT-WAY TOOLS; MACHINES FOR MAKING RAILWAYS OF ALL KINDS
- E01B2204/00—Characteristics of the track and its foundations
- E01B2204/01—Elastic layers other than rail-pads, e.g. sleeper-shoes, bituconcrete
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01B—PERMANENT WAY; PERMANENT-WAY TOOLS; MACHINES FOR MAKING RAILWAYS OF ALL KINDS
- E01B2204/00—Characteristics of the track and its foundations
- E01B2204/12—Floating rails or sleepers
Definitions
- the apparatus comprises a bottom plate which extends in the longitudinal direction of the track and which is supported by an elastic support means. At least one upper plate is disposed on the bottom plate, with a damping layer interposed between the bottom plate and the upper plate. A further means is provided for inhibiting relative lateral movement between the bottom plate and the upper plate.
- the damping layer may comprise a layer of viscoelastic material which is very thin relative to the thickness of the plates.
- the present invention relates to a device in path for motor vehicles for damping of vibrations arising from traffic and for preventing the transmission of these vibrations to the ground and environment of the path.
- a problem that is noticed more and more in the society of today is the disturbing noise arising from traffic with various means of conveyance. This applies particularly to rail vehicles and above all to subway trains which, as a rule, are driven in tunnels below the ground on which the dwelling-houses rest and through which vibrations from the traffic are transmitted to the buildings to cause inconvenience there in the form of noise. Such inconvenience is frequently caused, also by vehicles being driven on strongly vibrating concrete constructions, bridges etc., in direct connection with dwelling-houses.
- FIG. 1 shows a section through a part of a path for rail vehicles and FIG. 2 shows a detail of the same.
- the reference character designates the bedrock and 2 a concrete smoothing layer on which a preferablycontinuous bottom plate 3 of concrete extending in the longitudinal direction of the path is adapted.
- isolator arrangements 4 of preferably viscoelastic material such as rubber are placed.
- support constructions S' are mounted in the smoothing layer 2 at suitable distance in the longitudinal direction of the path, between which and the plate 3 elastic support means 6 are arranged intended for taking up lateral forces, above all in curves on the path.
- the profile of the bottom plate 3 is substantially U-shaped with relatively short U-legs 7. Between these a central upper plate 8 of concrete is adapted, whose centre linesubstantially coincides with that of the plate 3, and on each side thereof with some interspace to the central plate 8 and the U-legs 7 there is a concrete body 9.
- the upper central plate 8 and the concrete bodies 9 have substantially the same extension in longitudinal direction as the bottom plate 3.
- a thin layer of a so-called absorbate (a damping mass) 10 is adapted, i. e., a viscoelasticrnaterial, which for instance may be arranged as an aggregate of two plates and an intermediate layer of a viscoelastic material.
- a viscoelasticrnaterial which for instance may be arranged as an aggregate of two plates and an intermediate layer of a viscoelastic material.
- this layer which is also called shearing layer
- the great energy absorbing ability of the material i.e., damping ability
- absorbates 11 are adapted in a corresponding manner.
- an elastic material is inserted, for instance in the form of corrugated rubber sheet 12.
- the centre plate 8 as well as the concrete bodies 9 thus rest freely on the bottom plate 3 and between its legs 7 and are separated by said so-called absorbates 10, 11 and the rubber sheets 12 provided with ridges.
- rails 13 are adapted in a suitable manner, on which wheels 13 and a shaft 15 of a rail vehicle are shown.
- a current rail 16 with safety means 17 is also arranged in a suitable manner at one longitudinal side of the bottom plate.
- the resulting vibrations are transmitted to the upper plate 8 on which the rails rest.
- the rails can also be replaced with sliding paths, air cushion rails an d the like for other types of vehicles.
- the device functions in such a way that the bending waves spreading from a vehicle in horizontal and vertical direction in the plate 8 are strongly damped by the presence of the shearing layers 10 and 11.
- the shearing layers will reach their full effect only by the presence of the supporting bottom plate 3 and of the unloaded passive bodies 9.
- the strong damping in the shearing layers cause the development of internal natural vibrations in the elastically arranged path 3, 8, 9 to be greatly reduced. This is a prerequisite in order that the vibration isolation by means of the isolators 4 should act effectively and that the direct air-sound radiation from the path should be kept at a low level.
- the rubber layers 12 are provided to disconnect the bodies 9 from the motion of the bottom plate 3 and the upper plate 8.
- the plate 8 is longitudinally divided into smaller blocks, which then preferably are connected with suitable means preventing relative motion in the longitudinal direction of the path.
- the device of the invention can of course be used for other parts of the path than tunnels.
- it is for instance very-advantageous at bridges, which, as is wellknown, heavily intensify traffic vibrations and radiate disturbing noise through the air.
- the bottom plate 3 can advantageously form the supporting element of the bridge.
- Track supporting apparatus for vehicles for damping vibrations arising as a result of vehicle movement on the track and for substantially preventing transmission of such vibrations to the ground and to the surroundings of the track comprising,
- said damping layer including a layer of viscoelasticv material which layer is very thin relative to the thickness of the plates, whereby shear stresses are developed in said visoelastic material when relative lateral movement takes place between the upper and bottom plates and when they oscillate in bending modes.
- a body for damping substantially horizontal vibrations is disposed on said bottom plate at each side 4.
- said elastic support means for said bottom plate comprises a plurality of rubber elements.
- damping layer comprises a viscoelastic material disposed between two metal plates.
Landscapes
- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Railway Tracks (AREA)
- Vibration Prevention Devices (AREA)
- Road Paving Structures (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SE07356/70A SE341014B (ja) | 1970-05-28 | 1970-05-28 |
Publications (1)
Publication Number | Publication Date |
---|---|
US3790078A true US3790078A (en) | 1974-02-05 |
Family
ID=20271137
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US00146777A Expired - Lifetime US3790078A (en) | 1970-05-28 | 1971-05-25 | Vibrator damping of vehicle path |
Country Status (6)
Country | Link |
---|---|
US (1) | US3790078A (ja) |
JP (1) | JPS548925B1 (ja) |
DE (1) | DE2126158C3 (ja) |
FR (1) | FR2093805A5 (ja) |
GB (1) | GB1337639A (ja) |
SE (1) | SE341014B (ja) |
Cited By (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3907200A (en) * | 1972-10-24 | 1975-09-23 | Regie Autonome Transports | Track and method of laying track on a concrete road bed |
US4232822A (en) * | 1976-12-28 | 1980-11-11 | Ed. Zublin Aktiengesellschaft | Method of and arrangement for correcting the height of railway upper structures |
US4262845A (en) * | 1978-03-30 | 1981-04-21 | British Railways Board | Concrete slab structure for railway track |
US4338758A (en) * | 1978-04-18 | 1982-07-13 | Reduc Acoustics Ab | Vibration damped structures and objects |
US4356968A (en) * | 1980-10-10 | 1982-11-02 | Stedef S.A. | Railroad tie cover |
US4489884A (en) * | 1980-10-10 | 1984-12-25 | Stedef S.A. | Railroad tie cover |
US4609144A (en) * | 1984-04-27 | 1986-09-02 | Stedef S.A. | Railroad tie cover |
US4616395A (en) * | 1983-06-30 | 1986-10-14 | Perini Corporation | Railroad track fixation method and apparatus |
US20100242786A1 (en) * | 2006-05-26 | 2010-09-30 | Max Bogl Bauunternehmung Gmbh & Co. Kg | Guideway |
CN113818291A (zh) * | 2021-10-22 | 2021-12-21 | 株洲时代新材料科技股份有限公司 | 一种无砟轨道钢轨减振装置 |
Families Citing this family (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2610727A1 (de) * | 1976-03-13 | 1977-09-22 | Hermann Salomon | Koerperschalldaemmende gleisbettung |
DE2901283A1 (de) * | 1979-01-13 | 1980-07-24 | Erich Radler | Schotterloser oberbau fuer schienengebundene fahrzeuge |
DE2941492A1 (de) * | 1979-10-11 | 1981-06-19 | Alfred Dipl.-Ing. 8700 Würzburg Reichart | Horizontale elastische abstuetzung der gleis- und weichenkonstruktion |
PL138056B1 (en) * | 1982-06-19 | 1986-08-30 | Politechnika Warszawska | Railway track |
DE3315697A1 (de) * | 1983-04-29 | 1984-11-08 | Klöckner-Werke AG, 4100 Duisburg | Schallminderndes gleiselement |
DE3443081A1 (de) * | 1984-11-27 | 1986-05-28 | Phoenix Ag, 2100 Hamburg | Elastisches schienenlager |
EP0229409B1 (fr) * | 1985-12-16 | 1989-05-10 | Joseph Grunenwaldt | Procédé et dispositif de fixation élastique de rail de voie ferrée |
HU207756B (en) * | 1988-06-03 | 1993-05-28 | Beton Es Vasbetonipari Muevek | Arrangement for forming large-panel railroad permanent ways |
AU1416895A (en) * | 1994-01-24 | 1995-08-08 | Hermann Ortwein | Infrastructure for railway tracks |
AT410329B (de) * | 1999-03-19 | 2003-03-25 | Porr Allg Bauges | Schotterloser oberbau |
DE10107827C5 (de) * | 2001-02-16 | 2011-09-15 | Max Bögl Bauunternehmung GmbH & Co. KG | Verfahren zur Herstellung und zur Lagerung eines Betonbauteiles für eine Feste Fahrbahn eines schienengeführten Fahrzeuges sowie deren Lagerung |
-
1970
- 1970-05-28 SE SE07356/70A patent/SE341014B/xx unknown
-
1971
- 1971-05-25 US US00146777A patent/US3790078A/en not_active Expired - Lifetime
- 1971-05-26 DE DE2126158A patent/DE2126158C3/de not_active Expired
- 1971-05-27 FR FR7119212A patent/FR2093805A5/fr not_active Expired
- 1971-05-28 GB GB1789371A patent/GB1337639A/en not_active Expired
- 1971-05-28 JP JP3640771A patent/JPS548925B1/ja active Pending
Cited By (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3907200A (en) * | 1972-10-24 | 1975-09-23 | Regie Autonome Transports | Track and method of laying track on a concrete road bed |
US4232822A (en) * | 1976-12-28 | 1980-11-11 | Ed. Zublin Aktiengesellschaft | Method of and arrangement for correcting the height of railway upper structures |
US4262845A (en) * | 1978-03-30 | 1981-04-21 | British Railways Board | Concrete slab structure for railway track |
US4338758A (en) * | 1978-04-18 | 1982-07-13 | Reduc Acoustics Ab | Vibration damped structures and objects |
US4356968A (en) * | 1980-10-10 | 1982-11-02 | Stedef S.A. | Railroad tie cover |
US4489884A (en) * | 1980-10-10 | 1984-12-25 | Stedef S.A. | Railroad tie cover |
US4616395A (en) * | 1983-06-30 | 1986-10-14 | Perini Corporation | Railroad track fixation method and apparatus |
US4609144A (en) * | 1984-04-27 | 1986-09-02 | Stedef S.A. | Railroad tie cover |
US20100242786A1 (en) * | 2006-05-26 | 2010-09-30 | Max Bogl Bauunternehmung Gmbh & Co. Kg | Guideway |
CN113818291A (zh) * | 2021-10-22 | 2021-12-21 | 株洲时代新材料科技股份有限公司 | 一种无砟轨道钢轨减振装置 |
Also Published As
Publication number | Publication date |
---|---|
FR2093805A5 (ja) | 1972-01-28 |
GB1337639A (en) | 1973-11-14 |
DE2126158B2 (de) | 1978-09-28 |
DE2126158A1 (de) | 1971-12-09 |
SE341014B (ja) | 1971-12-13 |
JPS548925B1 (ja) | 1979-04-19 |
DE2126158C3 (de) | 1979-05-31 |
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