WO1995031604A1 - Curved track - Google Patents

Curved track Download PDF

Info

Publication number
WO1995031604A1
WO1995031604A1 PCT/EP1995/001819 EP9501819W WO9531604A1 WO 1995031604 A1 WO1995031604 A1 WO 1995031604A1 EP 9501819 W EP9501819 W EP 9501819W WO 9531604 A1 WO9531604 A1 WO 9531604A1
Authority
WO
WIPO (PCT)
Prior art keywords
curve
radius
length
intermediate section
curvature
Prior art date
Application number
PCT/EP1995/001819
Other languages
German (de)
French (fr)
Inventor
Sebastian Benenowski
Hubertus Höhne
Alfred Kais
Erich Nuding
Original Assignee
Bwg Butzbacher Weichenbau Gmbh
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Bwg Butzbacher Weichenbau Gmbh filed Critical Bwg Butzbacher Weichenbau Gmbh
Priority to EP95919453A priority Critical patent/EP0760032B1/en
Priority to DE59506800T priority patent/DE59506800D1/en
Priority to DK95919453T priority patent/DK0760032T3/en
Publication of WO1995031604A1 publication Critical patent/WO1995031604A1/en

Links

Classifications

    • E—FIXED CONSTRUCTIONS
    • E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01B—PERMANENT WAY; PERMANENT-WAY TOOLS; MACHINES FOR MAKING RAILWAYS OF ALL KINDS
    • E01B2/00—General structure of permanent way
    • E—FIXED CONSTRUCTIONS
    • E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01B—PERMANENT WAY; PERMANENT-WAY TOOLS; MACHINES FOR MAKING RAILWAYS OF ALL KINDS
    • E01B7/00—Switches; Crossings
    • 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
    • E01B2204/15—Layout or geometry of the track

Definitions

  • the end sections or the intermediate section are of different lengths and are each adapted to the individual requirements.
  • the planning, construction and execution of a curve is complex.
  • the present invention is based on the problem of developing a curve such that the driving comfort of the rail vehicle passing through the curve is improved.
  • the object is essentially achieved in that the intermediate section has a length which is the same or approximately the same as that of each end section.
  • the respective end section can have the course of a clothoid and the intermediate section can have the shape of a circular arc.
  • the teaching according to the invention simplifies the curve construction irrespective of the length of the curve itself divided three identical or roughly three equal parts, one section of which follows a true circular arc, whereas the remaining sections are constructed identically, starting on one side with a curvature of approximately 0, which merges into a curvature that that of the corresponds to the middle section.
  • the length L of the curve is designed such that vehicles traveling through the curve with a medium speed V experience vibration excitation with a frequency v to the side when the curve is being passed , the relationship applies:
  • V with preferably 2 ⁇ ⁇ 4,
  • a single curve (10) with a length L is shown in the single figure, which enables a transition from a star track (12) to a branch track (14).
  • the course of the curve (10), ie the track between the main track (12) and branch track (14), is composed of end sections (16) and (18) and an intermediate section (20).
  • the length of the end sections (16) and (18) and of the intermediate section (20) are chosen to be the same or approximately the same. This is symbolized in the drawing by 1/3 L.
  • transition arches ie the radii of curvature starting from the main track (12) or branch track (14) begin with a value -> ⁇ in order to decrease up to a finite radius of curvature R, which corresponds to that of the circular arc (20).
  • the respective length of the end section (16) or (18) and the intermediate section (20) is designed as a function of the average speed at which rail vehicles pass through the switch (10).

Landscapes

  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Platform Screen Doors And Railroad Systems (AREA)
  • Vehicle Body Suspensions (AREA)
  • Magnetic Heads (AREA)
  • Train Traffic Observation, Control, And Security (AREA)
  • Control Of Vehicles With Linear Motors And Vehicles That Are Magnetically Levitated (AREA)
  • Escalators And Moving Walkways (AREA)
  • Electrochromic Elements, Electrophoresis, Or Variable Reflection Or Absorption Elements (AREA)

Abstract

The invention relates to a curved track (10) of length L, the rails of which follow a curved path such that end sections (16, 18) with changing radii of curvature extend from the main rail (12) and branch rail (14) respectively, starting with a radius of curvature r (r → ) and ending with a final radius R = constant. The end sections run into an intermediate section of radius R. In order to standardise curved tracks independently of their lengths, it is proposed that the intermediate section (20) should be of a length equal or approximately equal to that of each end section (16, 18).

Description

Beschreibungdescription
KurvenzugCurve
Die Erfindung bezieht sich auf einen Kurvenzug einer Länge L mit einem gebogenen Verlauf seiner Schienen derart, daß vom Stammgleis bzw. Zweiggleis jeweils ein seinen Krümmungsradius ändernder Endabschnitt mit einem Krümmungsradius r mit r → ∞ beginnend und mit einem endlichen Radius R mit R = const. endend ausgeht, wobei die Endabschnitte in einen Zwischenabschnitt mit dem Radius R übergehen.The invention relates to a curve of length L with a curved course of its rails in such a way that each end section of the main track or branch track changing its radius of curvature begins with a radius of curvature r with r → ∞ and with a finite radius R with R = const. ends, the end sections merging into an intermediate section with the radius R.
Bei den bekannten Kurvenzügen sind die Endabschnitte bzw. der Zwischenabschnitt unterschiedlich lang ausgelegt und werden jeweils an die individuellen Anforderungen angepaßt. Hierdurch bedingt ist die Planung, Konstruktion und Ausführung eines Kurvenzuges aufwendig.In the known curves, the end sections or the intermediate section are of different lengths and are each adapted to the individual requirements. As a result, the planning, construction and execution of a curve is complex.
Der vorliegenden Erfindung liegt das Problem zugrunde, einen Kurvenzug derart weiterzubilden, daß der Fahrkomfort den Kurvenzug durchfahrenden Schienenfahrzeuges verbessert wird.The present invention is based on the problem of developing a curve such that the driving comfort of the rail vehicle passing through the curve is improved.
Erfindungsgemäß wird die Aufgabe im wesentlichen dadurch gelöst, daß der Zwischen¬ abschnitt eine Länge aufweist, die gleich oder in etwa gleich der eines jeden End¬ abschnittes ist. Dabei kann der jeweilige Endabschnitt den Verlauf einer Klothoiden und der Zwischenabschnitt den eines Kreisbogens aufweisen.According to the invention, the object is essentially achieved in that the intermediate section has a length which is the same or approximately the same as that of each end section. The respective end section can have the course of a clothoid and the intermediate section can have the shape of a circular arc.
Durch die erfindungsgemäße Lehre erfolgt eine Vereinfachung der Kurvenzugkon¬ struktion unabhängig von der Länge des Kurvenzuges selbst. So wird der Kurvenzug in drei gleiche oder in etwa drei gleiche Teile aufgeteilt, von denen ein Abschnitt einem echten Kreisbogen folgt, wohingegen die verbleibenden Abschnitte gleich aufgebaut sind, und zwar an einer Seite mit einer Krümmung von in etwa 0 beginnend, die in eine Krümmung übergeht, die der des mittleren Abschnitts entspricht.The teaching according to the invention simplifies the curve construction irrespective of the length of the curve itself divided three identical or roughly three equal parts, one section of which follows a true circular arc, whereas the remaining sections are constructed identically, starting on one side with a curvature of approximately 0, which merges into a curvature that that of the corresponds to the middle section.
Durch diese Maßnahme hat sich überraschenderweise gezeigt, daß sich günstige Fahr¬ eigenschaften in dem Kurvenzug ausbilden, so daß ein Durchfahren von diesem auch mit hohen Geschwindigkeiten möglich ist.This measure has surprisingly shown that favorable driving properties develop in the curve, so that driving through it is also possible at high speeds.
Um den Fahrkomfort zusätzlich zu erhöhen, wird vorgeschlagen, daß die Länge L des Kurvenzuges so ausgelegt ist, daß bei den Kurvenzug mit einer mittleren Geschwindig¬ keit V durchfahrenden Fahrzeugen, die bei Durchfahrt des Kurvenzuges eine seitlich zur Fahrtrichtung erfolgende Schwingungsanregung mit einer Frequenz v erfahren, die Beziehung gilt:In order to further increase driving comfort, it is proposed that the length L of the curve is designed such that vehicles traveling through the curve with a medium speed V experience vibration excitation with a frequency v to the side when the curve is being passed , the relationship applies:
v insbesonderev in particular
V mit vorzugsweise 2 < α < 4, wobeiV with preferably 2 <α <4, where
t =t =
3 -V3 -V
Durch die Abstimmung der Länge der einzelnen Abschnitte des Kurvenzuges zu den in die den Kurvenzug durchfahrenden Fahrzeuge aufgrund der Änderung der Seitenbe- schleunigung eingeleiteten Schwingung, die auch als Wankfrequenz zu bezeichnen ist, erfolgt entlang des Kuvenzugverlaufs keine zusätzliche Schwingungsanregung, die sich störend auf die Fahrzeuge auswirken kann.By coordinating the length of the individual sections of the curve train with the vibrations introduced into the vehicles passing through the curve train due to the change in the lateral acceleration, which can also be referred to as the roll frequency, there is no additional vibration excitation along the course of the Kuvenzug, which can have a disruptive effect on the vehicles.
Die erfindungsgemäße Lehre soll nachstehend rein beispielhaft anhand einer Darstellung erläutert werden, aus der sich weitere Einzelheiten, Vorteile und Merkmale ergeben.The teaching according to the invention is to be explained below purely by way of example with the aid of a representation from which further details, advantages and features result.
So ist in der einzigen Figur rein prinzipiell ein eine Weiche umfassender Kurvenzug (10) einer Länge L dargestellt, der einen Übergang von einem Starnrngleis (12) zu einem Zweiggleis (14) ermöglicht. Der Verlauf des Kurvenzuges (10), also der Gleistei¬ le zwischen Stammgleis (12) und Zweiggleis (14), setzt sich aus Endabschnitten (16) und (18) sowie einem Zwischenabschnitt (20) zusammen.In principle, a single curve (10) with a length L is shown in the single figure, which enables a transition from a star track (12) to a branch track (14). The course of the curve (10), ie the track between the main track (12) and branch track (14), is composed of end sections (16) and (18) and an intermediate section (20).
Die Länge der Endabschnitte (16) und (18) sowie des Zwischenabschnitts (20) sind gleich oder in etwa gleich gewählt. Dies wird in der zeichnerischen Darstellung durch 1/3 L symbolisiert.The length of the end sections (16) and (18) and of the intermediate section (20) are chosen to be the same or approximately the same. This is symbolized in the drawing by 1/3 L.
Die Endabschnitte (16) und (18) bilden dabei Übergangsbögen, d.h., daß die Krüm¬ mungsradien vom Stammgleis (12) bzw. Zweiggleis (14) ausgehend mit einem Wert — > ∞ beginnen, um bis hin zu einem endlichen Krümmungsradius R abzunehmen, der dem des Kreisbogens (20) entspricht.The end sections (16) and (18) form transition arches, ie the radii of curvature starting from the main track (12) or branch track (14) begin with a value -> ∞ in order to decrease up to a finite radius of curvature R, which corresponds to that of the circular arc (20).
Die jeweilige Länge des Endabschnitts (16) bzw. (18) und des Zwischenabschnitts (20) ist dabei in Abhängigkeit von der mittleren Geschwindigkeit ausgelegt, mit der Schie¬ nenfahrzeuge die Weiche (10) durchfahren.The respective length of the end section (16) or (18) and the intermediate section (20) is designed as a function of the average speed at which rail vehicles pass through the switch (10).
Unterstellt man, daß das Schienenfahrzeug beim Durchfahren des Kurvenzuges mit der Geschwindigkeit V eine Änderung der Seitenbeschleunigung erfährt, die in dem Schie¬ nenfahrzeug zu einer seitlichen Schwingungsanregung mit einer sogenannten Wank¬ frequenz v führt, sollte zur Optimierung des Fahrkomforts folgende Beziehung einge¬ halten werden: V t =Assuming that the rail vehicle experiences a change in the lateral acceleration when passing through the curve at the speed V, which leads to lateral vibration excitation in the rail vehicle with a so-called roll frequency v, the following relationship should be maintained in order to optimize driving comfort : V t =
3 -V3 -V
Insbesondere sollte die BeziehungIn particular, the relationship
4 α • — v4 α • - v
mit vorzugsweise 2 < α < 4 eingehalten werden. with preferably 2 <α <4.

Claims

>PatentansprücheKurvenzug Curve
1. Kurvenzug (10) einer Länge L mit einem gebogenen Verlauf seiner Schienen derart, daß vom Stammgleis (12) bzw. Zweiggleis (14) jeweils ein seinen Krümmungsradius ändernder Endabschnitt (16, 18) mit einem Krümmungsradius r mit r → oo beginnend und mit einem endlichen Radius R mit R = const. endend ausgeht, wobei die Endabschnitte in einen Zwischenabschnitt mit dem Radius R übergehen, dadurch gekennzeichnet, daß der Zwischenabschnitt (20) eine Länge aufweist, die gleich oder in etwa gleich der eines jeden Endabschnittes (16, 18) ist.1. Curve (10) of a length L with a curved course of its rails such that from the main track (12) or branch track (14) each has a radius of curvature changing its end section (16, 18) with a radius of curvature r with r → oo and with a finite radius R with R = const. ending, the end sections merging into an intermediate section with the radius R, characterized in that the intermediate section (20) has a length which is equal to or approximately the same as that of each end section (16, 18).
2. Kurvenzug nach Anspruch 1, dadurch gekennzeichnet, daß der Endabschnitt (16, 18) einen Verlauf einer Klothoiden und der Zwischen¬ abschnitt (20) den eines Kreisbogens aufweist.2. Curve according to claim 1, characterized in that the end section (16, 18) has a course of a clothoid and the intermediate section (20) that of a circular arc.
3. Kurvenzug nach Anspruch 1 oder 2, dadurch gekennzeichnet, daß die Länge L des Kurvenzuges (10) so ausgelegt ist, daß bei den Kurvenzug mit einer mittleren Geschwindigkeit V durchfahrenden Fahrzeugen, die bei Durchfahrt des Kurvenzuges eine seitliche Schwingungsanregung mit einer Fre¬ quenz v erfahren, die Beziehung gilt: insbesondere v t = - — v mit vorzugsweise 2 < α < 4, wobei3. Curve according to claim 1 or 2, characterized in that the length L of the curve (10) is designed such that vehicles traveling through the curve with a medium speed V, the lateral vibration excitation with a Fre¬ frequency when passing the curve v experience, the relationship applies: in particular vt = - - v with preferably 2 <α <4, where
3 -V ist. 3 -V is.
PCT/EP1995/001819 1994-05-16 1995-05-13 Curved track WO1995031604A1 (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
EP95919453A EP0760032B1 (en) 1994-05-16 1995-05-13 Railway track curve
DE59506800T DE59506800D1 (en) 1994-05-16 1995-05-13 TRACK CURVE
DK95919453T DK0760032T3 (en) 1994-05-16 1995-05-13 Track Curve Stretching

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE4417069A DE4417069A1 (en) 1994-05-16 1994-05-16 Curve
DEP4417069.6 1994-05-16

Publications (1)

Publication Number Publication Date
WO1995031604A1 true WO1995031604A1 (en) 1995-11-23

Family

ID=6518167

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP1995/001819 WO1995031604A1 (en) 1994-05-16 1995-05-13 Curved track

Country Status (6)

Country Link
EP (1) EP0760032B1 (en)
AT (1) ATE184340T1 (en)
DE (2) DE4417069A1 (en)
DK (1) DK0760032T3 (en)
ES (1) ES2138205T3 (en)
WO (1) WO1995031604A1 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1998028492A1 (en) * 1996-12-23 1998-07-02 Vae Aktiengesellschaft Curve path of a switch, and track joint using this type of curve path
CN103132404A (en) * 2013-02-07 2013-06-05 中铁宝桥集团有限公司 Turnout line shape of joint flexible type turnout bending device

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6438494B1 (en) * 1999-10-12 2002-08-20 Sanei Co., Ltd. Method, apparatus and program products for designing roads
RU2478149C2 (en) * 2011-04-22 2013-03-27 Федеральное государственное образовательное учреждение высшего профессионального образования "Уральский государственный университет путей сообщения" (ФГОУ ВПО УрГУПС) Design of railway track in curves
RU2538496C1 (en) * 2013-08-30 2015-01-10 Открытое Акционерное Общество "Российские Железные Дороги" Design of curve of track structure

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB565873A (en) * 1943-04-27 1944-12-01 Francis Thomas Murray Improvements in or relating to transition curves for roads and railways and other constructions

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB565873A (en) * 1943-04-27 1944-12-01 Francis Thomas Murray Improvements in or relating to transition curves for roads and railways and other constructions

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
ESCARIO: "traite des routes", DUNOD, PARIS, FRANCE *

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1998028492A1 (en) * 1996-12-23 1998-07-02 Vae Aktiengesellschaft Curve path of a switch, and track joint using this type of curve path
AU719664B2 (en) * 1996-12-23 2000-05-11 Vae Aktiengesellschaft Curve path of a switch as well as switch connection using such a curve path
US6371418B1 (en) 1996-12-23 2002-04-16 Vae Aktiengesellschaft Curve path of a switch, and track joint using this type of curve path
CN103132404A (en) * 2013-02-07 2013-06-05 中铁宝桥集团有限公司 Turnout line shape of joint flexible type turnout bending device

Also Published As

Publication number Publication date
EP0760032A1 (en) 1997-03-05
ES2138205T3 (en) 2000-01-01
EP0760032B1 (en) 1999-09-08
DE59506800D1 (en) 1999-10-14
DE4417069A1 (en) 1995-11-23
ATE184340T1 (en) 1999-09-15
DK0760032T3 (en) 2000-03-27

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