prEN 1337-8
(Main)Structural bearings - Part 8: Guide bearings and Restraint bearings
Structural bearings - Part 8: Guide bearings and Restraint bearings
This document specifies rules for the design, testing and manufacture of guide bearings and restraint bearings. It is applicable to bearings, which transmit loads in x- and y-plane according to prEN 1337-1:2018 only.
This document will be used in conjunction with the relevant parts of the prEN 1337 series.
Lager im Bauwesen - Teil 87: Führungslager und Festhaltekonstruktionen
Dieses Dokument legt Regeln für die Bemessung, Prüfung und Herstellung von Führungslagern und Festhaltekonstruktionen fest. Das Dokument gilt nur für Lager, die Lasten in der x- und y-Ebene nach prEN 1337-1:2018 übertragen.
Dieses Dokument wird in Kombination mit den relevanten Teilen der Normenreihe prEN 1337 verwendet.
Appareils d’appui structuraux - Partie 8 : Appareils d’appui guidés et appareils d’appui bloqués
Le présent document spécifie les règles de conception, d’essai et de fabrication d’appareils d’appui guidés et d’appareils d’appui bloqués. Il s’applique aux appareils d’appui qui transmettent les charges dans les plans x et y selon la norme provisoire prEN 1337-1:2018 uniquement.
Ce document sera utilisé conjointement aux parties pertinentes de la série prEN 1337.
Konstrukcijska ležišča - 8. del: Vodila za ležišča in pritrjene konstrukcije
General Information
Relations
Standards Content (Sample)
SLOVENSKI STANDARD
01-marec-2018
.RQVWUXNFLMVNDOHåLãþDGHO 9RGLOD]DOHåLãþDLQSULWUMHQHNRQVWUXNFLMH
Structural bearings - Part 8: Guide bearings and Restraint bearings
Lager im Bauwesen - Teil 87: Führungslager und Festhaltekonstruktionen
Ta slovenski standard je istoveten z: prEN 1337-8
ICS:
91.010.30 7HKQLþQLYLGLNL Technical aspects
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.
DRAFT
EUROPEAN STANDARD
NORME EUROPÉENNE
EUROPÄISCHE NORM
January 2018
ICS 91.010.30 Will supersede EN 1337-8:2007
English Version
Structural bearings - Part 8: Guide bearings and Restraint
bearings
Lager im Bauwesen - Teil 87: Führungslager und
Festhaltekonstruktionen
This draft European Standard is submitted to CEN members for enquiry. It has been drawn up by the Technical Committee
CEN/TC 167.
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, Former Yugoslav Republic of Macedonia, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania,
Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, 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
© 2018 CEN All rights of exploitation in any form and by any means reserved Ref. No. prEN 1337-8:2018 E
worldwide for CEN national Members.
Contents Page
European foreword . 3
1 Scope . 4
2 Normative references . 4
3 Terms and definitions . 4
4 Types of restraint and guide bearings . 5
4.1 Restraint bearing . 5
4.2 Guide bearings . 5
5 Material Properties . 6
6 Design . 6
7 Testing . 7
8 Manufacturing, assembly and tolerances . 7
9 Transport, storage and installation . 7
10 In-service inspection . 7
11 Maintenance . 8
12 Assessment and verification of constancy of performance . 8
12.1 General . 8
12.2 Type Testing . 8
12.3 Factory production control . 8
12.4 Assessment of the performance of the construction product . 8
Annex ZA (informative) Relationship of this European Standard with Regulation (EU)
No.305/2011 . 10
ZA.1 Scope and relevant characteristics . 10
ZA.2 System of Assessment and Verification of Constancy of Performance (AVCP) . 11
ZA.3 Assignment of AVCP tasks . 11
European foreword
This document (prEN 1337-8:2018) has been prepared by Technical Committee CEN/TC 167
“Structural bearings”, the secretariat of which is held by DIN.
This document is currently submitted to the CEN Enquiry.
This document will supersede EN 1337-8:2007.
This document has been prepared under a mandate given to CEN by the European Commission and the
European Free Trade Association, and supports essential requirements of EU Regulation 305/2011.
For relationship with EU Regulation 305/2011, see informative Annex ZA, which is an integral part of
this document.
prEN 1337, Structural bearings, consists of the following 8 Parts:
— Part 1: General;
— Part 2: Sliding elements;
— Part 3: Elastomeric bearings;
— Part 4: Roller bearings;
— Part 5: Pot bearings;
— Part 6: Rocker bearings;
— Part 7: Spherical and cylindrical PTFE bearings;
— Part 8: Guide bearings and Restraint bearings.
The major technical changes are listed below:
— Complete technical and editorial revision of the document; it is not possible to list all implemented
changes to this edition of EN 1337-8.
1 Scope
This document specifies rules for the design, testing and manufacture of guide bearings and restraint
bearings. It is applicable to bearings, which transmit loads in x- and y-plane according to
prEN 1337-1:2018 only.
This document will be used in conjunction with the relevant parts of the prEN 1337 series.
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.
prEN 1337-1:2018, Structural bearings — Part 1: General
prEN 1337-2:2018, Structural bearings — Part 2: Sliding elements
prEN 1337-5:2018, Structural bearings — Part 5: Pot bearings
EN 1993 (all parts), Eurocode 3: Design of steel structures
EN 10025 (all parts), Hot rolled products of structural steels
EN 10083-3, Steels for quenching and tempering — Part 3: Technical delivery conditions for alloy steels
EN 10088-2, Stainless steels — Part 2: Technical delivery conditions for sheet/plate and strip of corrosion
resisting steels for general purposes
EN 10340, Steel castings for structural uses
3 Terms and definitions
For the purposes of this document, the terms and definitions given in prEN 1337-1:2018 and
prEN 1337-2:2018 and the following apply.
ISO and IEC maintain terminological databases for use in standardization at the following addresses:
• IEC Electropedia: available at http://www.electropedia.org/
• ISO Online browsing platform: available at http://www.iso.org/obp
3.1
base plate
plate that is an integral part of the bearing and forms the main component to which restraints and
guides are attached
[SOURCE: prEN 1337-2:2018, 3.21.13]
3.2
tilting element
element that transmits the specified forces and permits rotations about at least one axis
3.3
guide bearing
bearing which provides restraint in one horizontal direction only, accommodates rotations and does
not transmit vertical loads
3.4
restraint bearing
bearing which prevents movements in a plane, accommodates rotations and does not transmit loads
perpendicular to this plane
4 Types of restraint and guide bearings
4.1 Restraint bearing
The restraint bearing consists of ferrous components with sliding elements (restraints) and, where
necessary, tilting elements.
The restraint bearing transmits forces in the x-y-plane according to prEN 1337-1:2018 and allows
movements in the z-direction and rotations.
Typical restraint bearings are shown in Figure 1.
Figure 1 — Typical restraint bearings
4.2 Guide bearings
The guide bearing consists of ferrous components with sliding elements (guides) and, where necessary,
tilting elements.
The guide bearing transmits forces in either the x- or y-direction according to prEN 1337-1:2018 and
allows movements in all other directions and rotations.
Typical guide bearings are shown in Figure 2.
Key
1 indicates sliding elements
2 indicates tilting elements
Figure 2 — Typical guide bearings
5 Material Properties
The materials used for the load transfer in sliding contact surfaces shall comply with
prEN 1337-2:2018.
Guide bearings and restraint bearings shall be manufactured from ferrous materials in accordance with
one of the following standards: the EN 10025 series, EN 10083-3, EN 10088-2, EN 10340.
6 Design
prEN 1337-1:2018 applies.
The restraint bearing shall be designed to transmit forces in the x-y-plane according to
prEN 1337-1:2018 and to allow movements in the z-direction and rotations.
The guide bearing shall be designed to transmit forces in either the x- or y-direction according to
prEN 1337-1:2018 and to allow movements in all other directions and rotations.
In addition to the design requirements given in prEN 1337-2:2018 the ferrous components shall be
designed in accordance with the relevant standards, e.g. the EN 1993 series for structural steel. For
design and verification of contact surfaces in load bearing restraining rings the design rules given in
prEN 1337-5:2018 shall be followed.
The frictional resistance shall be determined using the coefficients of friction given in
prEN 1337-2:2018.
Internal forces and moments acting on the sliding surfaces due to frictional resistance, externally
applied horizontal loads and the effects of rotations and translations shall be taken into account.
The vertical design of movement of restraint or guide bearings determined with the design effects from
prEN 1337-1:2018 shall be increased with:
— 15 mm upwards;
— 10 mm downwards.
The minimum base plate thickness t shall be
— determined from stress and deformation verification; or
— calculated according to Formula (1) or 17 mm, whichever is greater.
t 0,025× ab+ (1)
For horizontal load transfer the most adverse contact point of the components shall be taken into
account.
If guide bearings and restraint bearings are combined with other bearings or elements, such as sliding
elements, restraints and/or guides, the design shall include the interactive forces.
The selected material shall be verified in accordance with the principles given in the relevant parts of
the EN 1993 series, e.g. EN 1993-1-10.
7 Testing
See prEN 1337-2:2018.
8 Manufacturing, assembly and tolerances
See prEN 1337-1:2018.
9 Transport, storage and installation
See prEN 1337-1:2018.
10 In-service inspection
See prEN 1337-1:2018 and prEN 1337-2:2018.
=
11 Maintenance
See prEN 1337-1:2018.
12 Assessment and verification of constancy of performance
12.1 General
prEN 1337-1:2018, 12.1 applies.
In the case of bearings with sliding elements prEN 1337-2:2018 applies.
12.2 Type Testing
prEN 1337-1:2018, 12.2 applies.
For the type testing (TT), including sampling of the product, Tables 5 applies.
The amount of samples depends on the testing methods used.
In the case of bearings with sliding elements prEN 1337-2:2018 applies.
12.3 Factory production control
prEN 1337-1:2018, 12.3 applies.
In the case of bearings with sliding elements prEN 1337-2:2018 applies.
For further testing of samples shall be carried out in accordance with the prescribed test plan.
Sampling of structural bearings shall be carried out at random based on the production of structural
bearings.
For the factory production control Tables 1 and 2 apply.
12.4 Assessment of the performance of the construction product
prEN 1337-1:2018, 12.4 applies.
For the assessment of the performance of the construction product carried out on the basis of testing -
including sampling
...
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