Railway applications - Track - Switches and crossings for Vignole rails - Part 8: Expansion devices

This part of EN 13232 covers the following subjects: to establish a working terminology for expansion devices, for their constituent parts and for the types; to specify the minimum manufacturing requirements for expansion devices and their constituent parts; to formulate codes of practice for inspection and tolerances; to define the method by which expansion devices and their parts should be identified and traced.

Bahnanwendungen - Oberbau - Weichen und Kreuzungen für Vignolschienen - Teil 8: Auszugsvorrichtungen

Applications ferroviaires - Infrastructure - Appareils de voie - Partie 8: Appareils de dilatation

Le domaine d'application du présent document est le suivant : établir une terminologie pour les appareils de dilatation, leurs constituants et les différents types d'appareils de dilatation ; spécifier les exigences minimales de fabrication pour les appareils de dilatation et leurs constituants ; spécifier les règles de l'art pour les contrôles et les tolérances ; définir les méthodes d'identification des appareils de dilatation et de leurs constituants qu'il convient d'utiliser.

Železniške naprave - Zgornji ustroj proge - Kretnice in križišča za Vignolove tirnice - 8. del: Dilatacijske naprave

General Information

Status
Not Published
Public Enquiry End Date
31-Mar-2020
Technical Committee
Current Stage
4020 - Public enquire (PE) (Adopted Project)
Start Date
31-Jan-2020
Due Date
19-Jun-2020
Completion Date
01-Apr-2020

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SLOVENSKI STANDARD
oSIST prEN 13232-8:2020
01-marec-2020

Železniške naprave - Zgornji ustroj proge - Kretnice in križišča za Vignolove tirnice

- 8. del: Dilatacijske naprave

Railway applications - Track - Switches and crossings for Vignole rails - Part 8:

Expansion devices
Bahnanwendungen - Oberbau - Weichen und Kreuzungen für Vignolschienen - Teil 8:
Auszugsvorrichtungen

Applications ferroviaires - Infrastructure - Appareils de voie - Partie 8: Appareils de

dilatation
Ta slovenski standard je istoveten z: prEN 13232-8
ICS:
45.080 Tračnice in železniški deli Rails and railway
components
oSIST prEN 13232-8:2020 en,fr,de

2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

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oSIST prEN 13232-8:2020
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oSIST prEN 13232-8:2020
DRAFT
EUROPEAN STANDARD
prEN 13232-8
NORME EUROPÉENNE
EUROPÄISCHE NORM
January 2020
ICS 93.100 Will supersede EN 13232-8:2007+A1:2011
English Version
Railway applications - Track - Switches and crossings for
Vignole rails - Part 8: Expansion devices

Applications ferroviaires - Infrastructure - Appareils de Bahnanwendungen - Oberbau - Weichen und

voie - Partie 8: Appareils de dilatation Kreuzungen für Vignolschienen - Teil 8:
Auszugsvorrichtungen

This draft European Standard is submitted to CEN members for enquiry. It has been drawn up by the Technical Committee

CEN/TC 256.

If this draft becomes a European Standard, CEN members are bound to comply with the CEN/CENELEC Internal Regulations

which stipulate the conditions for giving this European Standard the status of a national standard without any alteration.

This draft European Standard was established by CEN in three official versions (English, French, German). A version in any other

language made by translation under the responsibility of a CEN member into its own language and notified to the CEN-CENELEC

Management Centre has the same status as the official versions.

CEN members are the national standards bodies of Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia,

Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway,

Poland, Portugal, Republic of North Macedonia, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and

United Kingdom.

Recipients of this draft are invited to submit, with their comments, notification of any relevant patent rights of which they are

aware and to provide supporting documentation.

Warning : This document is not a European Standard. It is distributed for review and comments. It is subject to change without

notice and shall not be referred to as a European Standard.
EUROPEAN COMMITTEE FOR STANDARDIZATION
COMITÉ EUROPÉEN DE NORMALISATION
EUROPÄISCHES KOMITEE FÜR NORMUNG
CEN-CENELEC Management Centre: Rue de la Science 23, B-1040 Brussels

© 2020 CEN All rights of exploitation in any form and by any means reserved Ref. No. prEN 13232-8:2020 E

worldwide for CEN national Members.
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oSIST prEN 13232-8:2020
prEN 13232-8:2020 (E)
Contents Page

European foreword ....................................................................................................................................................... 3

Introduction .................................................................................................................................................................... 4

1 Scope .................................................................................................................................................................... 5

2 Normative references .................................................................................................................................... 5

3 Terms and definitions ................................................................................................................................... 5

3.1 General definitions ......................................................................................................................................... 5

3.2 Main types of expansion devices ............................................................................................................... 7

4 Design ............................................................................................................................................................... 11

4.1 Design inputs ................................................................................................................................................. 11

4.2 Design rules .................................................................................................................................................... 12

4.2.1 General rules .................................................................................................................................................. 12

4.2.2 Wheel/rail interaction ............................................................................................................................... 12

4.2.3 Specific rules .................................................................................................................................................. 13

4.3 Performance requirements ...................................................................................................................... 14

4.4 Materials .......................................................................................................................................................... 14

4.5 Design output ................................................................................................................................................ 14

4.5.1 Detailed component drawings ................................................................................................................ 14

4.5.2 Assembly documents .................................................................................................................................. 14

5 Tolerances and inspection ........................................................................................................................ 14

5.1 General ............................................................................................................................................................. 14

5.2 Tools and instruments ............................................................................................................................... 15

5.3 Critical dimensions ...................................................................................................................................... 15

5.4 Adjustment switch (bayonet type)......................................................................................................... 15

5.5 Expansion switch .......................................................................................................................................... 19

5.6 Certification .................................................................................................................................................... 25

5.7 Methods of examination for structural defects ................................................................................. 25

6 Longitudinal resistance testing ............................................................................................................... 25

6.1 Test method ................................................................................................................................................... 25

6.2 Test results ..................................................................................................................................................... 26

7 Acceptance testing ....................................................................................................................................... 26

8 Limits and extent of supply ...................................................................................................................... 26

9 Identification marks.................................................................................................................................... 27

Bibliography ................................................................................................................................................................. 28

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oSIST prEN 13232-8:2020
prEN 13232-8:2020 (E)
European foreword

This document (prEN 13232-8:2020) has been prepared by Technical Committee CEN/TC 256 “Railway

applications”, the secretariat of which is held by DIN.
This document is currently submitted to the CEN Enquiry.
This document will supersede EN 13232-8:2007+A1:2011.

This series of standards “Railway applications – Track – Switches and crossings for Vignole rails” covers

the design and quality of switches and crossings in flat bottomed rail. The list of Parts is as follows:

— Part 1: Definitions
— Part 2: Requirements for geometric design
— Part 3: Requirements for wheel/rail interaction
— Part 4: Actuation, locking and detection
— Part 5: Switches
— Part 6: Fixed common and obtuse crossings
— Part 7: Crossings with moveable parts
— Part 8: Expansion devices
— Part 9: Layouts

Part 1 contains terminology used throughout all parts of this series. Parts 2 to 4 contain basic design

guides and are applicable to all switch and crossing assemblies. Parts 5 to 8 deal with particular types of

equipment including their tolerances. These use Parts 1 to 4 as a basis. Part 9 defines the geometric and

non-geometrical acceptance criteria for inspection of layouts.
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oSIST prEN 13232-8:2020
prEN 13232-8:2020 (E)
Introduction

An expansion device is a device which permits longitudinal relative rail movement of two adjacent rails,

while maintaining correct guidance and support.
These longitudinal movements may be required in:
a) interrupted CWR (continuously welded rail);
b) structure movement;
c) or a combination of both.
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oSIST prEN 13232-8:2020
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1 Scope

This document covers the following subjects: to establish a working terminology for expansion devices,

for their constituent parts and for the types; to specify the minimum manufacturing requirements for

expansion devices and their constituent parts; to formulate codes of practice for inspection and

tolerances; to define the method by which expansion devices and their parts should be identified.

2 Normative references

The following documents are referred to in the text in such a way that some or all of their content

constitutes requirements of this document. For dated references, only the edition cited applies. For

undated references, the latest edition of the referenced document (including any amendments) applies.

EN 13146-1, Railway applications - Track - Test methods for fastening systems - Part 1: Determination of

longitudinal rail restraint

prEN 13232-2:2020, Railway applications – Track — Switches and crossings for Vignole rails – Part 2:

Requirements for geometric design

prEN 13232-3:2020, Railway applications – Track – Switches and crossings for Vignole rails – Part 3:

Requirements for wheel/rail interaction

prEN 13232-9:2020, Railway applications – Track – Switches and crossings for Vignole rails – Part 9:

Layouts
EN 13715, Railway applications – Wheelsets and bogies – Wheels – Wheels tread

UIC 510-2, Trailing stock: wheels and wheelsets – Conditions concerning the use of wheels of various

diameters
3 Terms and definitions
For the purposes of this document, the following terms and definitions apply.

ISO and IEC maintain terminological databases for use in standardization at the following addresses:

— ISO Online browsing platform: available at https://www.iso.org/obp
— IEC Electropedia: available at http://www.electropedia.org/
3.1 General definitions
3.1.1
customer

term used to define one party involved in using the EN as the technical basis for a transaction: the

Operator or User of the equipment, or the Purchaser of the equipment on the User's behalf

3.1.2
supplier

term used to define one party involved in using the EN as the technical basis for a transaction: the Body

responsible for the use of the EN in response to the Customer's requirements
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prEN 13232-8:2020 (E)
3.1.3
hand (of half set) – adjustment switch (bayonet type)

LH (left hand) half set or RH (right hand) when viewed standing in the track gauge and facing the tips of

the inside rails

Note 1 to entry: With check rails, there may be two LH or two RH half sets, see Figure 6, or opposite hand half

sets.
Note 2 to entry: See 3.2.1 for definition of adjustment switch (bayonet type).
3.1.4
hand (of half set) – expansion switch

LH half set or a RH half set when viewed standing in the track gauge and facing the toes of the

expansion switch
Note 1 to entry: See 3.2.2 for definition of expansion switch.
3.1.5
expansion capacity C
maximum permissible relative longitudinal movement between the two rails, where:
C = D – D
max min
Note 1 to entry: See Figures 1 and 2.
Key Key
D minimum gap D maximum gap
min max
Figure 1 — Closed position Figure 2 — Open position
3.1.6
relative displacement rail / support

maximum permissible relative longitudinal movement between the rail (switch or stock rail) and the

corresponding support (base plate or bearer)
3.1.7
mean position

position where the expansion capacity and the relative displacement of rails are half way, and the

bearers are in their nominal position. See Figure 3
3.1.8
design position

nominal position where the expansion capacity and the relative displacement of rails are half way,

especially where shrinkage of concrete structures, for example, will shift the mean position

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oSIST prEN 13232-8:2020
prEN 13232-8:2020 (E)
Key
Dmin minimum gap
Dmax maximum gap
M mean position
Figure 3 — Mean position
3.2 Main types of expansion devices
3.2.1
adjustment switch (bayonet type)
expansion device with interruption of the running edge
3.2.1.1
adjustment switch without check rails (both sides moveable)
Key
1 slide chair 4 moveable rails
2 low restrain fastening 5 bearer straps
3 standard fastening R reference point
Figure 4 — Adjustment switch – Both sides moveable
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oSIST prEN 13232-8:2020
prEN 13232-8:2020 (E)
3.2.1.2
adjustment switch without check rails (one side moveable)
Key
1 slide chair 5 fixed rails
2 low restrain fastening 6 bearer straps
3 standard fastening R reference point
4 moveable rails
Figure 5 — Adjustment switch – One side moveable
3.2.1.3
adjustment switch with check rails (both sides moveable)
Key
1 slide chair 5 check rails
2 low restrain fastening 6 bearer strap
3 standard fastening R reference point
4 moveable rails
Figure 6 — Adjustment switch with check rails – Both sides moveable
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oSIST prEN 13232-8:2020
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3.2.1.4
adjustment switch with check rails (one side moveable)
Key
1 slide chair 5 fixed rails
2 low restrain fastening 6 check rails
3 standard fastening 7 bearer strap
4 moveable rails R reference point
Figure 7 — Adjustment switch with check rails – One side moveable
3.2.2
expansion switch
expansion device without interruption of the running edge
3.2.2.1
expansion switch with moveable stock rails
Key
1 slide chair 5 fixed switch rails
2 low restrain fastening 6 bearer strap
3 standard fastening R reference point
4 moveable stock rails
Figure 8 — Expansion switch – Moveable stock rails
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oSIST prEN 13232-8:2020
prEN 13232-8:2020 (E)
3.2.2.2
expansion switch with moveable switch rails
Key
1 slide chair 5 moveable switch rails
2 low restrain fastening 6 bearer strap
3 standard fastening R reference point
4 fixed stock rails
Figure 9 — Expansion switch – Moveable switch rails
3.2.2.3
expansion switch both sides moveable
Key
1 slide chair 5 moveable switch rails
2 low restrain fastening 6 bearer strap
3 standard fastening R reference point
4 moveable stock rails
Figure 10 — Expansion switch – Both sides moveable
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oSIST prEN 13232-8:2020
prEN 13232-8:2020 (E)
4 Design
4.1 Design inputs
The following information shall be supplied by the customer to the supplier:
— axle load;
— gross annual tonnage;
— train speed;
— nominal track gauge;
— direction of traffic;
— track geometry.
In addition the customer shall decide:
— the type of expansion device to be applied;

— the expansion capacity of the expansion device as well as the maximum displacement rail/support.

If the latter is not provided, it shall be estimated to be half the expansion capacity of the device;

— the basic rail section and grade;
— the rail inclination to be applied through the expansion device;
— the fastening system to be applied;
— the nominal support spacing;
— type of support structure, e.g. bearer, slab track;

— special requirements, e.g. limits of vertical and horizontal end rotations, limits of local vertical and

horizontal radii of track, limits of uplift movements on rail supports adjacent to the gap between

the structure and the abutment or between the structures.
The following elements shall be agreed between customer and supplier:
— the special rail profiles to be applied for the construction (if applicable);
— the constructional length;
— the machining details of the rail sections;
— the maximum support spacing in service.
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4.2 Design rules
4.2.1 General rules
4.2.1.1 Support panel

In the case where one side is moveable, a number of bearers shall be restrained from moving. This is

normally a minimum of four bearers. The incoming rails may, for example, have low resistance

fastenings on the restrained bearers to permit movement of the moveable rails.
All restrained bearers shall be
...

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