prEN 1337-2
(Main)Structural bearings - Part 2: Sliding elements
Structural bearings - Part 2: Sliding elements
This document specifies rules for the design, testing and manufacture of sliding elements which are not structural bearings but only parts of them for combination with structural bearings as defined in other parts of this European Standard.
It is applicable to:
- flat and curved sliding elements made of polytetrafluoroethylene (PTFE), lubricant and austenitic steel or chromium plated surfaces or anodized aluminium,
- sliding elements for guides made of PTFE or composite bearing materials, lubricant and austenitic steel,
- PTFE surfaces with a circumscribing circle diameter of single or multiple PTFE sheets larger than 75 mm and smaller than 1 500 mm,
- PTFE surface temperatures between –35 °C and +50 °C and
- steel to steel sliding surfaces.
Additional requirements for curved sliding elements used in spherical and cylindrical PTFE bearings are covered by prEN 1337-7:2018.
Sliding elements for use as temporary devices during construction, for example during launching of the superstructure, and sliding elements not permanently in contact, other than guides, are not covered within this document, because the required performance and conditions may deviate considerably.
This document will be used in conjunction with the relevant parts of this standard series.
Lager im Bauwesen - Teil 2: Gleitteile
Dieses Dokument legt die Regeln für die Bemessung, Prüfung und Herstellung von Gleitteilen fest, die keine Lager im Bauwesen, sondern nur Teile von solchen sind, für die Kombination mit Lagern im Bauwesen, die in anderen Teilen dieser Europäischen Norm geregelt sind.
Sie gilt für:
flache und gekrümmte Gleitteile aus Polytetrafluorethylen (PTFE), Schmierstoffe und austenitischen Stahl oder verchromte Oberflächen oder eloxiertes Aluminium,
- Gleitteile für Führungen aus PTFE oder Verbundlagerwerkstoffe, Schmierstoffe und austenitischen Stahl,
- PTFE-Oberflächen mit einem Umfangskreisdurchmesser einzelner oder mehrerer PTFE-Platten von mehr als 75 mm und weniger als 1 500 mm,
- PTFE-Oberflächentemperaturen zwischen −35 °C und +50 °C und
- Gleitflächen zwischen Stahlelementen.
Zusätzliche Anforderungen an gekrümmte Gleitteile für Kalotten- und zylindrische PTFE-Lager werden in prEN 1337-7:2018 behandelt.
Gleitteile, die als vorübergehende Einrichtungen während der Bautätigkeit wie etwa während des Baubeginns des Überbaus verwendet werden, und Gleitteile, die nicht in ständigem Kontakt außer mit den Führungen stehen, werden in diesem Dokument nicht behandelt, da die Anforderungen an die Leistung und Bedingungen erheblich abweichen können.
Dieses Dokument wird in Kombination mit den anderen relevanten Teilen dieser Normenreihe verwendet.
Appareils d'appui structuraux - Partie 2 : Eléments de glissement
Le présent document spécifie les règles applicables à la conception, aux essais et à la fabrication des éléments de glissement qui ne sont pas des appareils d’appui structuraux mais seulement des pièces qui y sont associées sous différentes combinaisons, telles que définies dans les autres parties de la présente Norme européenne.
Il s’applique :
- aux éléments de glissement plats et incurvés en polytétrafluoréthylène (PTFE), en aluminium anodisé ou faits de surfaces lubrifiantes et revêtues d’acier austénitique ou de chrome ;
- aux éléments de glissement pour guides en PTFE ou en matériaux d’appui composites, matériaux lubrifiants et acier austénitique ;
- aux surfaces en PTFE avec un diamètre de cercle circonscrit de feuilles de PTFE simples ou multiples supérieur à 75 mm et inférieur à 1 500 mm ;
- aux températures de surfaces PTFE comprises entre -35 °C et +50 °C ; et
- aux surfaces de glissement acier contre acier.
Les exigences supplémentaires applicables aux éléments incurvés utilisés dans les appareils d’appui en PTFE sphériques et cylindriques sont couvertes par la norme prEN 1337-7:2018.
Les éléments de glissement destinés à servir de dispositifs temporaires pendant la construction, par exemple pendant le lancement de la superstructure, et les éléments de glissement n’étant pas en contact en permanence, hormis les guides, ne sont pas couverts par le présent document car les performances et conditions requises peuvent s’en écarter considérablement.
Le présent document sera utilisé conjointement aux autres parties pertinentes de la présente série de normes.
Konstrukcijska ležišča - 2. del: Drsni elementi
General Information
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Standards Content (Sample)
SLOVENSKI STANDARD
01-marec-2018
.RQVWUXNFLMVNDOHåLãþDGHO 'UVQLHOHPHQWL
Structural bearings - Part 2: Sliding elements
Lager im Bauwesen - Teil 2: Gleitteile
Ta slovenski standard je istoveten z: prEN 1337-2
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 1337-2:2004
English Version
Structural bearings - Part 2: Sliding elements
Lager im Bauwesen - Teil 2: Gleitteile
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 1337-2:2018 E
worldwide for CEN national Members.
Contents Page
European foreword . 6
1 Scope . 7
2 Normative references . 7
3 Terms, definitions, symbols and abbreviations . 8
3.1 Terms and definitions . 8
3.2 Symbols . 10
3.2.1 Latin upper cases . 10
3.2.2 Latin lower case letters . 10
3.2.3 Greek letters . 11
3.2.4 Subscripts . 11
3.3 Abbreviations . 12
4 Types of sliding elements . 12
4.1 General . 12
4.2 Sliding elements permanently loaded . 13
4.2.1 Flat sliding elements with recessed PTFE . 13
4.2.2 Flat sliding elements with PTFE vulcanised to elastomeric bearings . 13
4.2.3 Curved sliding elements . 14
4.3 Sliding elements not permanently loaded . 14
5 Material characteristics . 15
5.1 PTFE . 15
5.1.1 Material specification . 15
5.1.2 Mechanical and physical characteristics . 15
5.2 Composite materials . 16
5.2.1 Composite material CM1 . 16
5.2.2 Composite material CM2 . 17
5.3 Austenitic steel sheet . 18
5.4 Ferrous material for backing plates, guides and restraints . 18
5.5 Aluminium alloy . 18
5.6 Lubricant . 18
5.6.1 General . 18
5.6.2 Characteristics . 18
5.7 Adhesive for bonding austenitic steel sheets . 19
5.8 Chromium plating . 19
5.9 Anodised aluminium surface . 19
6 Design . 19
6.1 General . 19
6.2 Combination of sliding materials . 20
6.3 PTFE Sheets . 20
6.3.1 Recessed PTFE sheets . 20
6.3.2 PTFE sheets vulcanized to elastomeric bearings . 25
6.4 Composite materials . 26
6.5 Guides and restraints. 26
6.6 Austenitic steel sheet . 27
6.6.1 Displacement capacity . 27
6.6.2 Thickness . 27
6.7 Characteristic compressive strength of sliding materials. 28
6.8 Coefficient of friction . 28
6.8.1 Dimpled PTFE . 28
6.8.2 Initially lubricated undimpled PTFE . 29
6.8.3 Composite materials in guides . 29
6.8.4 Steel to steel contact surfaces in guides . 29
6.8.5 Steel-to-steel contact surfaces in restraints. 30
6.9 Design verification for sliding surfaces . 30
6.9.1 General . 30
6.9.2 Compressive stress verification . 30
6.9.3 Separation of sliding surfaces . 31
6.10 Design verification of backing plates . 31
6.10.1 General . 31
6.10.2 Deformation verification . 32
6.10.3 Connection between austenitic steel sheet and backing plate . 34
6.11 Combination with other bearings or elements . 34
7 Testing . 35
7.1 General . 35
7.2 Testing of Sliding characteristics . 35
7.2.1 Sliding surfaces with dimpled lubricated PTFE sheets . 35
7.2.2 PTFE-sheets bonded to elastomer . 36
7.2.3 Guides incorporating CM1 and CM2 . 36
7.3 Lap shear test for austenitic steel sheets and composite materials . 37
7.3.1 Requirements for long term test . 37
7.3.2 Requirements for short-term test . 37
7.4 Testing of hard chromium plating . 37
7.4.1 Visual inspection . 37
7.4.2 Ferroxyl test . 37
7.4.3 Roughness . 37
7.4.4 Thickness . 37
7.5 Testing of anodized aluminium surface . 37
7.6 Testing of lubricant . 37
7.6.1 Oil separation test .
...
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