Structural bearings - Guide Bearings and Restraint Bearings

This Part of this European Standard deals with the requirements for the design and manufacture of Guide Bearings and Restraint Bearings.
Guide Bearings and Restraint Bearings are not intended to transmit vertical loads but they may be combined in one unit with bearings in accordance. EN 1337-1:2000, Table 1.
NOTE 1   Guide Bearings and Restraint Bearings are shown in EN 1337-1:2000, Table 1, No. 8.1 and 8.2. For combined bearings see EN 1337-1:2000, Table 1, bearing Nos. 1.2, 1.3, 1.6, 1.7, 1.8., 3.1, 4.1, 4.2, 4.3, 7.1, 7.3, and 7.4 with restraints and Nos. 1.5, 1.7, 2.2, 3.3, 3.4, 5.2, 6.2, and 7.3 with guides.
NOTE 2   Examples of combined bearings are given in Annex B.
The minimum operating temperature depends on the materials’ properties used at the required temperature and the limitations given in the referenced parts of this European Standard.
NOTE 3   In certain circumstances the bearings described in this part of this European Standard may be required to operate in a plane inclined to the horizontal. In such circumstances the terms "vertical" and "horizontal" should be interpreted appropriately.

Lager im Bauwesen - Teil 8: Führungslager und Festhaltekonstruktionen

Dieser Teil dieser Europäischen Norm betrifft die Anforderungen an die Bemessung und die Herstellung von Führungslagern und Festpunktlagern nach Tabelle 1 von Teil 1 dieser Europäischen Norm, Lager Nr 8.1 und 8.2.
Lager die vertikale Kräfte aufnehmen, sind nicht Gegenstand dieses Teils dieser Europäischen Norm

Appareils d'appui structuraux - Partie 8 : Appareils d'appui guidés et appareils d'appui bloqués

La présente partie de cette Norme européenne traite des exigences relatives a la conception et a la fabrication des appareils d’appui guidés et des appareils d’appui bloqués.
Les appareils d’appui guidés et les appareils d’appui bloqués ne sont pas prévus pour transmettre des charges verticales mais peuvent etre combinés a l'unité avec des appareils d'appui conformes a l'EN 1337-1:2000, Tableau 1.
NOTE 1   Les appareils d’appui guidés et des appareils d’appui bloqués sont présentés dans la norme EN 1337-1 : 2000, tableau 1, N° 8.1 et 8.2. Pour les appareils d'appui combinés, voir EN 1337-1 : 2000, tableau 1, appareils d'appui bloqués N° 1.2, 1.3, 1.6, 1.7, 1.8, 3.1, 4.1, 4.2, 4.3, 7.1, 7.3 et 7.4 et les n° 1.5, 1.7, 2.2, 3.3, 3.4, 5.2, 6.2 et 7.3 pour les appareils d'appui avec guides.
NOTE 2   Des exemples d'appareils d'appui combinés sont donnés dans l'Annexe B.
La température minimale de service dépend des propriétés des matériaux utilisés a la température spécifiée et des limitations données dans les parties référencées de la présente norme européenne.
NOTE 3   Dans certaines circonstances, les appareils d'appui décrits dans la présente partie de cette norme européenne peuvent etre spécifiés comme fonctionnant selon un plan incliné par rapport a l'horizontale. Il convient, dans de tels cas, d'interpréter les termes "vertical" et "horizontal" de façon appropriée.

Konstrukcijska ležišča - 8. del: Vodila za ležišča in pritrjene konstrukcije

General Information

Status
Published
Publication Date
07-Jan-2008
Current Stage
6060 - National Implementation/Publication (Adopted Project)
Start Date
24-Oct-2007
Due Date
29-Dec-2007
Completion Date
08-Jan-2008

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2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.Structural bearings - Guide Bearings and Restraint BearingsNRQVWUXNFLMHAppareils d'appui structuraux - Partie 8 : Appareils d'appui guidés et appareils d'appui bloquésLager im Bauwesen - Teil 8: Führungslager und FesthaltekonstruktionenTa slovenski standard je istoveten z:EN 1337-8:2007SIST EN 1337-8:2008en,fr91.010.30Technical aspectsICS:SLOVENSKI
STANDARDSIST EN 1337-8:200801-februar-2008







EUROPEAN STANDARDNORME EUROPÉENNEEUROPÄISCHE NORMEN 1337-8October 2007ICS 91.010.30 English VersionStructural bearings - Part 8: Guide Bearings and RestraintBearingsAppareils d'appui structuraux - Partie 8 : Appareils d'appuiguidés et appareils d'appui bloquésLager im Bauwesen - Teil 8: Führungslager undFesthaltekonstruktionenThis European Standard was approved by CEN on 23 August 2007.CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this EuropeanStandard the status of a national standard without any alteration. Up-to-date lists and bibliographical references concerning such nationalstandards may be obtained on application to the CEN Management Centre or to any CEN member.This European Standard exists in three official versions (English, French, German). A version in any other language made by translationunder the responsibility of a CEN member into its own language and notified to the CEN Management Centre has the same status as theofficial versions.CEN members are the national standards bodies of Austria, Belgium, Bulgaria, Cyprus, Czech Republic, Denmark, Estonia, Finland,France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal,Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and United Kingdom.EUROPEAN COMMITTEE FOR STANDARDIZATIONCOMITÉ EUROPÉEN DE NORMALISATIONEUROPÄISCHES KOMITEE FÜR NORMUNGManagement Centre: rue de Stassart, 36
B-1050 Brussels© 2007 CENAll rights of exploitation in any form and by any means reservedworldwide for CEN national Members.Ref. No. EN 1337-8:2007: E



EN 1337-8:2007 (E) 2 Contents Page Foreword.4 1 Scope.5 2 Normative references.5 3 Terms, Definitions, Symbols and Abbreviations.6 3.1 Terms and definitions.6 3.2 Symbols and Abbreviations.8 4 Functional Requirements.8 4.1 General.8 4.2 Durability.9 5 Material Properties.9 5.1 General.9 5.2 Ferrous materials.9 5.3 Structural Fasteners.9 5.4 Welding.9 5.5 Anchors.9 6 Design Rules.9 6.1 General.9 6.2 Rotational Elements.10 6.3 Minimum plate thickness.10 6.4 Connection to Packing and Anchor Plates.10 6.5 Clearances.11 6.6 Combination with other bearings and/or elements.11 7 Manufacturing tolerances and corrosion protection.11 7.1 General.11 7.2 Corrosion protection.11 8 Conformity evaluation.11 8.1 General.11 8.2 Control of the construction product and its manufacture.11 8.2.1 Initial type testing.11 8.2.2 Factory production control.12 8.3 Raw materials and constituents.12 8.4 Sampling.12 Annex A (normative)
Factory production control (FPC).13 A.1 General.13 A.1.1 Objects.13 A.1.2 Documentation.13 A.1.3 Operations.13 A.2 Verifications and tests.14 A.2.1 General comments.14 A.2.2 Monitoring of conformity.14 A.2.3 Tests.14 A.2.4 Treatment of construction products which do not conform.14 A.2.5 Recording of verifications and tests (manufacturer's register).15 A.3 Traceability.15 Annex B (informative)
Examples of Combined Bearings.16



EN 1337-8:2007 (E) 3 Annex ZA (informative)
Clauses of this European Standard addressing the provisions of EU Construction Products Directive.18 ZA.1 Scope and relevant characteristic.18 ZA.2 Procedures for attestation of conformity of Guide and Restraint Bearings.19 ZA.2.1 Systems of attestation of conformity.19 ZA.2.2 Certificate and Declaration of conformity.20 ZA.3 CE marking and labelling.22 ZA.3.1 General.22 ZA.3.2 Declaration of product properties.23 ZA.3.3 Declaration of compliance with given design specification.23 Bibliography.26



EN 1337-8:2007 (E) 4 Foreword This document (EN 1337-8:2007) has been prepared by Technical Committee CEN/TC 167 “Structural bearings”, the secretariat of which is held by UNI. This European Standard shall be given the status of a national standard, either by publication of an identical text or by endorsement, at the latest by April 2008, and conflicting national standards shall be withdrawn at the latest by July 2009. Attention is drawn to the possibility that some of the elements of this document may be the subject of patent rights. CEN [and/or CENELEC] shall not be held responsible for identifying any or all such patent rights. 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 EC Directive(s). For relationship with EC Directive(s), see informative Annex ZA, which is an integral part of this document. This document was prepared by Working Group 1 and Working Group 3 of CEN TC 167 "Structural Bearings". This European Standard EN 1337 consists of the following 11 parts:  Part 1 – General design rules
 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
 Part 9 – Protection
 Part 10 – Inspection and maintenance  Part 11 – Transport, storage and installation According to the CEN/CENELEC Internal Regulations, the national standards organizations of the following countries are bound to implement this European Standard: Austria, Belgium, Bulgaria, Cyprus, Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and the United Kingdom.



EN 1337-8:2007 (E) 5 1 Scope This Part of this European Standard deals with the requirements for the design and manufacture of Guide Bearings and Restraint Bearings. Guide Bearings and Restraint Bearings are not intended to transmit vertical loads but they may be combined in one unit with bearings in accordance. EN 1337-1:2000, Table 1. NOTE 1 Guide Bearings and Restraint Bearings are shown in EN 1337-1:2000, Table 1, No. 8.1 and 8.2. For combined bearings see EN 1337-1:2000, Table 1, bearing Nos. 1.2, 1.3, 1.6, 1.7, 1.8., 3.1, 4.1, 4.2, 4.3, 7.1, 7.3, and 7.4 with restraints and Nos. 1.5, 1.7, 2.2, 3.3, 3.4, 5.2, 6.2 and 7.3 with guides. NOTE 2 Examples of combined bearings are given in Annex B. The minimum operating temperature depends on the materials’ properties used at the required temperature and the limitations given in the referenced parts of this European Standard. NOTE 3 In certain circumstances the bearings described in this part of this European Standard may be required to operate in a plane inclined to the horizontal. In such circumstances the terms "vertical" and "horizontal" should be interpreted appropriately. 2 Normative references The following referenced documents are indispensable for the application 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 1337-1:2000, Structural bearings – Part 1: General design rules EN 1337-2:2004, Structural bearings – Part 2: Sliding elements EN 1337-5:2005, Structural bearings – Part 5: Pot bearings EN 1337-9, Structural bearings – Part 9: Protection EN 1990, Eurocode – Basis of structural design EN 10025, Hot rolled products of structural steels EN 10204, Metallic products – Types of inspection documents 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 prEN 1090-2, Execution of steel structures and aluminium structures - Part 2: Technical requirements for the execution of steel structures ISO 898, Mechanical properties of fasteners made of carbon steel and alloy steel (all parts) ISO 1083, Spheroidal graphite cast irons — Classification ISO 3755, Cast carbon steels for general engineering purposes



EN 1337-8:2007 (E) 6 ISO 4587, Adhesives - Determination of tensile lap-shear strength or rigid-to-rigid bonded assemblies 3
Terms, Definitions, Symbols and Abbreviations 3.1 Terms and definitions
For the purpose of this European Standard the following terms and definitions apply. 3.1.1 anchor plate optional plate that is positioned between the bearing plate and the main structure, normally permanently attached to the latter; provided to allow easy replacement of the bearing 3.1.2 bearing plate plate that is an integral part of the bearing and forms the main support to which restraints and guides are attached 3.1.3 packing plate optional plate placed between the bearing plate and the anchor plate for adjusting the overall height of the bearing 3.1.4 sliding element combination of appropriate materials with flat or curved surfaces in accordance with EN 1337-2 3.1.5 rotational element element that transmits the specified forces and permits rotations about at least one axis 3.1.6 guide bearing bearing that provides restraint in one horizontal direction only, accommodates rotations and does not transmit vertical loads (see EN 1337-1:2000, Table 1, No. 8.2).



EN 1337-8:2007 (E) 7
Key 1 indicates sliding elements 2 indicates rotation elemet Figure 1 — Examples of guide bearings 3.1.7 restraint bearing bearing that prevents movements in the horizontal plane, accommodates rotations and does not transmit vertical loads (see EN 1337-1:2000, Table 1, No. 8.1)



EN 1337-8:2007 (E) 8
Figure 2 — Examples for restraint bearings 3.2 Symbols and Abbreviations a
is the minor side of an anchor plate or a bearing plate, or is the smallest dimension of PTFE (see 6.5 and 7.1)…. mm b
is the major side of an anchor plate or a bearing plate . mm CM
Composite Material PTFE Polytetrafluoroethylene 4 Functional Requirements 4.1 General Guide bearings and restraint bearings shall be designed to:  transmit horizontal forces;  allow vertical movements;  allow movements in one or no horizontal directions;  allow rotations;  generate low resistance to movement;  have durability appropriate to their intended use. NOTE As a consequence of the above these devices do not transmit applied vertical loads and bending moments.



EN 1337-8:2007 (E) 9 4.2 Durability To achieve durability with respect to repeated loading, low and high temperature, corrosion and ozone or chemical substances all requirements of this standard shall be met. 5 Material Properties 5.1 General The materials shall be selected for their compatibility within the expected temperature range of the structure. 5.2 Ferrous materials Guide Bearings and Restraint Bearings shall be manufactured from steels in accordance with one of the following standards: EN 10025, EN 10083-3, EN 10088-2, EN 10340, ISO 3755 and ISO 1083. 5.3 Structural Fasteners Data in specifications and certification of material shall correspond to the requirements relating to stress. All materials used shall comply with ISO 898. 5.4 Welding
Welding materials shall comply with prEN 1090-2. 5.5 Anchors Steel for shear studs shall have a guaranteed yield stress of not less than 340 N/mm2. Dowels and shear bars shall meet the requirements of sub-clause 5.2 and shall be fixed by welding or by bolts. 6 Design Rules 6.1 General The design values of the effects (forces, deformations, movements) from the actions at the supports of the structure shall be calculated from the relevant combination of actions according to EN 1990 and sections from 2 to 6 inclusive of both Parts 1 and 2 of EN 1991. NOTE 1 Until rules for the combination of actions for bearings become available in EN 1990, the guidance given in EN 1993-2 should be used.
The various elements of guide bearings and restraint bearings shall be designed in accordance with the relevant Eurocodes or the other relevant parts of this European Standard. NOTE 2 For the design of steel
parts see EN 1993. NOTE 3 For composite material see also EN 1337–2:2004, sub-clause 6.3. For the design of rotational elements Parts 3, 5 (6.2.3 and 6.2.4), 6 and 7 of this European Standard shall be applied, as appropriate. Guides shall be designed in accordance with EN 1337-2.



EN 1337-8:2007 (E) 10 NOTE 4 It is recommended that the design values of effects be provided in a bearing schedule as shown in EN 1993-2.
The movement capacity shall be verified by geometrical analysis under the fundamental combination of actions. The horizontal movement capacity shall be increased by the values given in EN 1337-1:2000, sub-clause 5.4. The vertical design movement capacity shall be at least the following:  15 mm upwards;  10 mm downwards. For the design of the combined units (see 1 Scope) the Part of this European Standard relevant to the device that transmits the vertical load shall be applied. 6.2 Rotational Elements Contact surfaces in rotational elements with steel - to - steel contact shall be machined to a surface roughness RY5i ≤ 6,3 µm in accordance with ISO 4587. In this case the friction coefficient shall be taken as 0,6. The combination of the materials in contact shall be such as to avoid cold welding. NOTE
Cold welding may be avoided by using the design rules given in EN 1337–5:2005 clause 6.2.3. Notice lubrication and dust protection of the contact zone. 6.3 Minimum plate thickness If used, the minimum thickness t of bearing plates and of anchor plates shall be that:  determined from stress verification; or  calculated according
to equation (1):
(1)  or 17 mm; whichever is the greatest. 6.4 Connection to Packing and Anchor Plates The connections between the bearing plates, packing plates, anchor plates and the main structure shall be capable of transmitting the applied forces and allow the bearings to be replaced if necessary. NOTE
Connections may be provided by bolts, high-strength friction grip bolt connections, shear disks, or pins.
Welding shall be used only if easy access is possible and if the welding and its removal are not detrimental to the bearing components. Internal uplift forces shall be resisted by positive means such as bolts. Friction shall be taken into account only where a positive clamping force such as pre-stress exists or if the guide bearings or restraint bearings are used in combination with a vertical load bearing on a common bearing plate. )(025,022mmbat+×=



EN 1337-8:2007 (E) 11 6.5 Clearances For the determination of clearances, due consideration shall be given to the movement capacity of other devices such as expansion joints, rails, safety fences, pedestrian parapets, services carried through the structure etc. Unless otherwise specified, the total clearance shall not exceed 2 mm. This condition shall be verified for the characteristic combination of actions. 6.6 Combination with other bearings and/or elements When a guide bearing or restraint bearing is combined with bearings or elements from other parts of this European Standard, the characteristics and kinematics of all elements and their interaction, together with the stiffness, moments and eccentricities of the structural components shall be considered. 7 Manufacturing tolerances and corrosion protection 7.1 General The tolerances shall be determined so that the completed bearing satisfies the design and clearance requirements. In particular, tolerances for sliding surfaces in rotational elements with steel- to -steel contact shall be in accordance with the requirements of sub-clause 7.3.1 of EN 1337-5:2005. For bearings using PTFE (Polytetrafluoroethylene), the differential deformation of the PTFE sheet across its smallest dimension “a” shall not exceed 0,2 mm (see EN 1337-2:2004 sub-clause 6.4). For CM1 (Composite Materials 1) and CM2 (Composite Materials 2) the manufacturer's requirements shall be respected. The maximum deviation from flatness shall be less than 0,05 mm. 7.2 Corrosion protection Requirements for corrosion protection are given in EN 1337-9. Where dissimilar materials are used in combination the effects of electrolytic corrosion shall be considered. 8 Conformity evaluation 8.1 General The tests and inspections specified in this clause shall be carried out to demonstrate conformity of the construction product with this part of EN 1337. In the case of bearings with sliding elements clause 8 of EN 1337-2:2004 also applies. The given system of evaluation of conformity shall also be used for non-series production. 8.2 Control of the construction product and its manufacture 8.2.1 Initial type testing The extent of type-testing shall be conducted in accordance with Table 1.



EN 1337-8:2007 (E) 12 Type testing shall be performed prior to commencing manufacture. It shall be repeated if changes in the construction product or the manufacturing processes occur. Certificates containing material properties established in clause 5 shall be individually examined during type testing and shall be retained by the manufacturer of the bearing. Type testing shall be supplemented with the relevant calculations from clause 6 for the evaluation of the final performance of the bearing. 8.2.2 Factory production control The extent and frequency of factory production control by the manufacturer shall be conducted in accordance with Table 1. In addition, it shall be checked by controlling the inspection certificates that the incoming raw material and components comply with this part of EN 1337. Detailed requirements for Factory production control are given in the Annex A. Table 1 — Control and testing of the construction product Type of control Subject of control Control in accordance with Frequency Dimensions Manufacturer’s Drawing Surface roughness 6.2 Initial type-testing Material properties 5 Once Dimensions Manufacturer’s Drawing Surface roughness 6.2 Material properties 5 Corrosion protection 7.2 Factory production control Marking EN 1337-1:2000, 1.7.3 Every bearing
8.3 Raw materials and constituents Compliance with the requirements specified in clause 5 shall be verified by the supplier by means of inspection certificates 3.1 B in accordance with EN 10204. 8.4 Sampling Random samples shall be taken from the running production of the construction product.



EN 1337-8:2007 (E) 13 Annex A (normative)
Factory production control (FPC) A.1 General A.1.1 Objects The manufacturer shall exercise a permanent Factory Production Control (FPC). NOTE A quality management system based on the relevant part of the EN ISO 9000 series, or equivalent. The manufacturer is responsible for organising the effective implementation of the FPC system. Tasks and responsibilities in the production control organisation should be documented and this documentation should be kept up-to-date. In each factory the manufacturer may delegate the action to a person having the necessary authority to: a) identify procedures to demonstrate conformity of the construction product at appropriate stages; b) identify and record any instance of non-conformity; c) identify procedures to correct instances of non-conformity. A.1.2 Documentation The manufacturer shall draw up and keep up-to-date documents defining the FPC that they apply. The manufacturer's documentation and procedures shall be appropriate to the construction product and manufacturing process. All FPC systems shall achieve an appropriate level of confidence in the conformity of the construction product. This involves: a) preparation of documented procedures and instructions relating to FPC operations, in accordance with the requirements of this European Standard (see A.1.3); b) effective implementation of these procedures and instructions; c) recording of these operations and their results; d) use of these results to correct any deviations, repair the effects of such deviations, treat any resulting instances of non-conformity and, if necessary, revise the FPC to rectify the cause of non-conformity. A.1.3 Operations FPC includes the following operations: a) specification and verification of raw materials and constituents; b) controls and tests to be carried out during the manufacture of the construction product according to a frequency laid down; c) verifications and tests carried out on finished construction products according to a frequency which may be laid down in the technical specifications and adapted to the product and its conditions of manufacture.



EN 1337-8:2007 (E) 14 NOTE 1 The operations under b) centre as much on the intermediate states of the construction product as on manufacturing machines and their adjustment and equipment etc. These controls and tests and their frequency are chosen based on type of construction product and composition the manufacturing process and its complexity, the sensitivity of product features to variations in manufacturing parameters etc. NOTE 2 With regard to operations under c), where there is no control of finished construction products at the time they are placed on the market, the manufacturer should ensure that packaging, and reasonable conditions of handing and storage, do not damage construction products and that the construction product remains in conformity with the technical specifications. NOTE 3 The appropriate calibrations must be carried out on defined measuring and test instruments. A.2 Verifications and tests A.2.1 General comments The manufacturer shall have or have available the installations, equipment and personnel that enable him or her to carry out the necessary verifications and tests. The manufacturer may, as may their agent, meet this requirement by concluding a sub-contracting agreement with one or more organisations or persons having the necessary skills and equipment. The manufacturer shall calibrate or verify and maintain the control, measuring or test equipment in good operating condition, whether or not it belongs to them, with a view to demonstrating conformity of the construction product with its technical specification. The equipment shall be used in conformity with the specification or the test reference system to which the specification refers. A.2.2 Monitoring of conformity If necessary, monitoring is carried out of the conformity of intermediate states of the product and at the main stages of its dispatch. This monitoring of conformity focuses where necessary on the construction product throughout the process of manufacture, so that only products having passed the scheduled intermediate controls and tests are dispatched. A.2.3 Tests Tests shall be in accordance with the test plan (Table 1) and can be carried out in accordance with the methods indicated in this European Standard. The manufacturer shall establish and maintain records that provide evidence that the construction products have been tested. These records shall show clearly whether the construction product has satisfied the defined acceptance criteria. Where the construction products fails to satisfy the acceptance measures, the provisions for non-conforming products shall be applied. A.2.4 Treatment of construction products which do not conform
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