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prEN 16431

(Main)

Railway applications - Infrastructure - Hollow sleepers and bearers

Railway applications - Infrastructure - Hollow sleepers and bearers

This document defines technical criteria and control procedures which are satisfied by hollow sleepers and bearers used in ballasted track with Vignole rails. The hollow sleepers and bearers designed for ballasted track can also be used in ballastless track. In this case, the requirements are defined by the customer.

Bahnanwendungen - Infrastruktur - Hohlschwellen für Gleise und Weichen

Dieses Dokument legt die zu erfüllenden technischen Kriterien und Kontrollverfahren für Hohlschwellen für Gleise und Weichen mit Vignolschienen in einem Schotterbett fest. Die Hohlschwellen für Gleise und Weichen, die für Schottergleise konstruiert wurden, können auch für feste Fahrbahnen verwendet werden. In diesem Fall sind die Anforderungen durch den Kunden festzulegen.

Applications ferroviaires - Voie - Traverses et supports creux

Le présent document définit les critères techniques ainsi que les procédures de contrôle qui sont respectés dans le cas des traverses creuses et des supports creux utilisés sur une voie ballastée avec des rails Vignoles. Les traverses creuses et les supports creux conçus pour les voies ballastées peuvent également être utilisés sur des voies sans ballast. Les exigences sont définies par le client.

Železniške naprave - Infrastruktura - Votli pragovi in nosilci

General Information

Status
Not Published
Publication Date
12-Oct-2025
ICS
93.100 - Construction of railways
Technical Committee
CEN/TC 256 - Railway applications
Drafting Committee
CEN/TC 256/SC 1/WG 16 - Sleepers and bearers
Current Stage
4020 - Submission to enquiry - Enquiry
Start Date
21-Nov-2024
Due Date
26-Aug-2023
Completion Date
21-Nov-2024
Directive
2016/797/EU - Directive (EU) 2016/797 of the European Parliament and of the Council of 11 May 2016 on the interoperability of the rail system within the European Union (Text with EEA relevance)
Mandate
M/483 - Mandate for programming and standardisation addressed to the European standardisation bodies under directive 2008/57/EC in the field of the interoperability of the rail system within the European Union
Ref Project
oSIST prEN 16431:2025 - Railway applications - Infrastructure - Hollow sleepers and bearers

Relations

Revises
EN 16431:2014 - Railway applications - Track - Hollow sleepers and bearers
Effective Date
31-Aug-2022

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SLOVENSKI STANDARD
01-januar-2025
Železniške naprave - Infrastruktura - Votli pragovi in nosilci
Railway applications - Infrastructure - Hollow sleepers and bearers
Bahnanwendungen - Infrastruktur - Hohlschwellen für Gleise und Weichen
Applications ferroviaires - Voie - Traverses et supports creux
Ta slovenski standard je istoveten z: prEN 16431
ICS:
45.080 Tračnice in železniški deli Rails and railway
components
93.100 Gradnja železnic Construction of railways
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

DRAFT
EUROPEAN STANDARD
NORME EUROPÉENNE
EUROPÄISCHE NORM
November 2024
ICS 93.100 Will supersede EN 16431:2014
English Version
Railway applications - Infrastructure - Hollow sleepers and
bearers
Applications ferroviaires - Voie - Traverses et supports Bahnanwendungen - Infrastruktur - Hohlschwellen für
creux Gleise und Weichen
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, Türkiye 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
© 2024 CEN All rights of exploitation in any form and by any means reserved Ref. No. prEN 16431:2024 E
worldwide for CEN national Members.

Contents Page
European foreword . 4
1 Scope . 5
2 Normative references . 5
3 Terms, definitions and abbreviations . 5
3.1 Terms and definitions . 5
3.2 Abbreviations . 7
4 Requirements . 7
4.1 General. 7
4.2 Mechanical requirements . 7
4.3 Functional requirements . 8
4.4 Design requirements . 9
4.5 Materials . 9
4.6 Environmental requirements . 9
4.6.1 General. 9
4.6.2 Cold and hot temperature . 9
4.6.3 Flammability . 9
4.6.4 Effect of exposure to severe environmental conditions (optional) . 9
4.7 Requirements for interfaces with mechanical equipment in case of integrated system
(optional) . 10
5 Test and calculation methods. 10
5.1 General. 10
5.2 Tests for fastening system interface . 10
5.2.1 Effect of repeated loading . 10
5.2.2 Pull-out test (Optional test) . 10
5.2.3 Pad and assembly stiffness (Optional test) . 11
5.3 FEM calculation for the body (applicable for steel body only) . 11
5.3.1 General. 11
5.3.2 Service fatigue design for centre section . 11
5.3.3 Service fatigue design for rail seat section . 12
5.3.4 Maximum load at rail seat section . 12
5.4 Bending test for the body . 12
5.5 Electrical resistance (Optional test) . 13
5.6 Field test . 13
6 Acceptance criteria for homologation . 13
6.1 Fastening system interface acceptance criteria . 13
6.1.1 Effect of repeated loading . 13
6.1.2 Pull-out test (Optional test) . 14
6.1.3 Pad and assembly stiffness (optional test) . 14
6.2 Body acceptance criteria . 14
6.2.1 Bending test acceptance criteria . 14
6.2.2 FEM calculation acceptance criteria (for steel body only) . 14
6.3 Electrical resistance acceptance criteria . 14
6.4 Field test acceptance criteria . 14
7 Tests and tolerances for quality control . 15
7.1 Dimension tolerances . 15
7.2 Electrical resistance . 15
8 Quality . 15
8.1 General . 15
8.2 Quality control during homologation tests . 16
8.3 Quality control during manufacturing (Routine tests) . 16
9 Traceability . 16
Annex A (normative) Bending test for body only . 17
Bibliography . 23

European foreword
This document (prEN 16431) 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 supersedes EN 16431:2014.
In comparison with the previous edition (EN 16431:2014), the following technical modifications have
been made:
— update clauses concerning the fastening system and references to the new fastening system standard
series;
— improve the document with the latest experience acquired by suppliers and customers in the field of
design of hollow sleepers and bearers;
— include improvements about acceptance procedures, particularly with regard to the testing of hollow
sleeper body and its fastening system interface.
1 Scope
This document defines technical criteria and control procedures which are satisfied by hollow sleepers
and bearers used in ballasted track with Vignole rails. The hollow sleepers and bearers designed for
ballasted track can also be used in ballastless track. In this case, the requirements are defined by the
customer.
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 13481 (all parts), Railway applications - Track - Performance requirements for fastening systems
EN 13481-7:2022, Railway applications - Track - Performance requirements for fastening systems - Part 7:
Fastening systems for switches and crossings, check rails, insulated rail joints and rail expansion devices
EN ISO 22074-3, Railway infrastructure — Rail fastening systems — Part 3: Proof load test method for pull-
out resistance (ISO 22074-3)
EN ISO 22074-4, Railway infrastructure — Rail fastening systems — Part 4: Test methods for resistance to
repeated loading (ISO 22074-4)
EN ISO 22074-5, Railway infrastructure — Rail fastening systems — Part 5: Test method for electrical
resistance (ISO 22074-5)
EN ISO 22074-6, Railway infrastructure — Rail fastening systems — Part 6: Test method for resistance to
severe environmental conditions (ISO 22074-6)
EN ISO 22074-8, Railway infrastructure — Rail fastening systems — Part 8: Test method for vertical
stiffness (ISO 22074-8)
EN 50125-3, Railway applications - Environmental conditions for equipment – Part 3: Equipment for
signalling and telecommunications
EN 13230-2:2016, Railway applications - Track - Concrete sleepers and bearers - Part 2: Prestressed
monoblock sleepers
EN 17343, Railway applications - General terms and definitions
3 Terms, definitions and abbreviations
3.1 Terms and definitions
For the purposes of this document, the terms and definitions given in EN 17343 and the following apply.
ISO and IEC maintain terminological databases for use in standardization at the following addresses:

— IEC Electropedia: available at https://www.electropedia.org/
— ISO Online browsing platform: available at https://www.iso.org/obp
3.1.1
hollow sleepers
sleepers and bearers with hollow structure, with support for Vignole rails on ballasted or ballastless
track, including the fastenings systems and all components, with a minimum of 50 % of the cross
sectional-area hollow throughout its length
3.1.2
special hollow sleepers
sleepers and bearers with a length > 2,6 m and minimum of three fastening points at different positions
(for example bearers in moveable crossings, inside double slips…)
3.1.3
body
hollow structure which is in contact with the ballast/slab and supports the fastening system and other
components
3.1.4
other components of the h
...

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