ДСТУ Б EN 1337-6:2015
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1 2 3.1 3.2 4 4.1 4.2 4.3 5 5.1 5.2 5.3 5.4 5.5 6 6.1 6.2 6.3 6.4 6.5 6.5.3 6.5.4 6.6 6.6.1 6.6.2 6.6.3 6.6.4 6.6.5 CONTENTS
page
Foreword VII
1 Scope 1
2 Normative references 12
3 Terms, definitions and symbols .... 2
3.1 Terms and definitions 2
3.2 Symbols 4
4 Functional requirements 5
4.1 General 5
4.2 Load bearing capacity 5
4.3 Rotation capability 5
5 Materials 5
5.1 General 5
5.2 Carbon steel 6
5.3 Stainless steel 6
5.4 Cast steel 6
5.5 Cast iron 6
6 Design 6
6.1 General 6
6.2 Curved surfaces 7
6.3 Surfaces in contact 7
6.4 Preventing of sliding 8
6.5 Dimensioning of components ... 8
6.5.1 Dimensions of line rocker .... 8
6.5.2 Point rocker in spherical seating 8
6.5.3 Point rocker on a flat surface ... 9
6.5.4 Load distribution to other components 10
6.6 Particular requirements 10
6.6.1 Corrosion in the contact line or point 10
6.6.2 Alignment 10
6.6.3 Line rocker rotational eccentricity 11
6.6.4 Point rocker rotational eccentricity 11
6.6.5 Eccentricity due to horizontal load 12
6.6.6 6.6.7 6.7 7 7.1 7.2 7.3 7.4 8 8.1 8.2 8.2.1 8.2.2 8.2.3 8.3 9 10 В?. 1 В?.2.1 В?.2.2 В?.2.3 В?.2.4 В?.2.5 В?.З? 6.6.6 Total eccentricity 12
6.6.7 Limiting rotation condition . ... 12
6.7 Combination with other elements 12
7 Tolerances 13
7.1 Flatness 13
7.2 Surface profile 13
7.3 Surface roughness 13
7.4 Parallelism of contact surfaces . . 14
8 Conformity evaluation 14
8.1 General 14
8.2 Control of the construction product and its manufacture 14
8.2.1 Factory production control (FPC) 14
8.2.2 Initial type testing 14
8.2.3 Routine testing 15
8.3 Raw materials and constituents . 15
9 Installation 15
10 In-service inspection 15
Annex A (normative) Ferrous materials 17
Annex B.1 General 18
B.1.1 Objectives 18
B. 1.2 Documentation 18
B. 1.3 Operations 19
B.2 Verifications and tests 19
B.2.1 General comments 19
B.2.2 Monitoring of conformity .... 20
B.2.3 Tests 20
B.2.4 Treatment of construction products which do not conform .... 20
B.2.5 Recording of verifications and tests (manufacturer's register) .... 21
B.3 Traceability 21
ZA.1 ZA.2 ZA.3 Annex ZA (informative)
Clauses of this European Standard addressing the provisions of the EU
Construction Products Directive ... 22
ZA.1 Scope and relevant characteristics 22
ZA.2 Procedure(s) for attestation of conformity of rocker bearings 26
ZA.3 CE marking and labeling .... 33
Bibliography 37
EN 1337-6:2004 - - - - - У?
This document (EN 1337-6:2004) 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 October 2004, and conflicting national standards shall be withdrawn at the latest by January 2006.
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 Direc- tive(s).
For relationship with EU Directive(s), see informative annex ZA, which is an integral part of this document.
The European Standard EN 1337 "Structural bearings" 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 restrain bearings
Part 9 Protection
Part 10 Inspection and maintenance
Part 11 Transport, storage and installation
Annex A is normative and annex This document includes a Bibliography.
According to the CEN/CENELEC Internal Regulations, the national standards organizations of the following countries are bound to implement this European Standard: Austria, Belgium, Cyprus, Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Slovakia, Slovenia, Spain, Sweden, Switzerland and the United Kingdom.
STRUCTURAL BEARINGS - Part 6: Rocker bearings
This part of EN 1337 specifies the requirements for the design and manufacture of rocker bearings. In order to accommodate displacements rocker bearings can be combined with a sliding element in accordance with EN 1337-2.
Bearings which are subjected to rotation greater than 0,05 rad resulting from the characteristic combination of actions are outside the scope of this part of EN 1337. This part of EN 1337 does not apply to rocker bearings made with materials other than those specified in clause 5.
This European Standard incorporates by dated or undated reference, provisions from other publications. These normative references are cited at the appropriate places in the text, and the publications are listed hereafter. For dated references, subsequent amendments to or revisions of any of these publications apply to this European Standard only when incorporated in it by amendment or revision. For undated references the latest edition of the publication referred to applies (including amendments).
EN 1337-1:2000, Structural bearings - Part 1: General design rules
EN 1337-2:2004, Structural bearings - Part 2: Sliding elements
EN 1337-7, Structural bearings - Part 7: Spherical and cylindrical PTFE bearings
EN 1337-9:1997, EN 1337-10, EN 1990, EN 10025, EN 10083-1, EN 10083-2, EN 10088-2, EN 10160, EN 10204, EN ISO 4287, EN ISO 6506-1, ISO 1083, ISO 3755, 3.1 3.1.1 EN 1337-9:1997, Structural bearings - Part 9: Protection
EN 1337-10, Structural bearings - Part 10: Inspection and maintenance
EN 1990, Eurocode - Basis of structural design
EN 10025, Hot rolled products of non-alloy structural steels - Technical delivery conditions
EN 10083-1, Quenched and tempered steels - Part 1: Technical delivery conditions for special steels
EN 10083-2, Quenched and tempered steels - Part 2: Technical delivery condition for unalloyed quality steels
EN 10088-2, Stainless steels - Part 2: Technical delivery conditions for sheet/plate and strip for general purposes
EN 10160, Ultrasonic testing of steel flat product of thickness equal or greater than 6 mm (reflection method)
EN 10204, Metallic products - Types of inspection documents
EN ISO 4287, Geometrical product specifications (GPS) - Surface texture: Profile method - Terms, definitions and surface texture parameters (ISO 4287:1997)
EN ISO 6506-1, Metallic materials - Brinell hardness test - Part 1: Test method (ISO 6506-1:1999)
ISO 1083, Spheroidal graphite cast iron - Classification
ISO 3755, Cast carbon steels for general engineering purposes
3.1 Terms and definitions
For the purposes of this European Standard, the following terms and definitions apply.
3.1.1 line rocker
bearing which is formed by a partial cylindrical surface rolling on a flat plate. It permits rotation about an axis parallel to the axis of the curved surface (see Figure 1). If necessary the rocker and rocker plate can be inverted
1 - 2 - З? - 4 - 5 - Key:
1 Rocker plate
2 Cylindrical surface
3 Line rocker bearing
4 Line rocker
5 Line rocker bearing
Figure 1 - Typical line rocker bearing
3.1.2 3.1.2 point rocker
bearing which is formed by a convex spherical surface rolling on a flat or concave spherical surface of larger radius (see Figure 2)
1 - 2 - Figure 2 - Typical point rocker bearing
3.1.3 3.1.4 3.1.3 rocker
component with a curved convex surface formed on one face. The curved surface can be a portion of a cylinder or sphere (see Figures 1 and 2)
3.1.4 rocker plate
component which operates in contact with the rocker. It can be flat or a concave portion of a sphere (see Figures 1 and 2)
3.1.5 3.2 adEdede 2d e 3d fufN Rd N' Rd N Rk N' Rk N Sd N' Sd L R 3.1 .5 shear dowel
component which provides positive mechanical restrain to horizontal loads
3.2 Symbols
For the purposes of this European Standard, the following symbols apply.
a d total design angular rotation in one direction, in radians (rad)
E d design modulus of elasticity, in Newtons per square millimetre (N/mm 2 )
e d total design eccentricity of vertical load, in millimetres (mm)
e 2 ,d design eccentricity due to rotation, in millimetres (mm)
e 3d design eccentricity due to translation, in millimetres (mm)
f u ultimate strength of material, in Newtons per square millimetre (N/mm 2 )
f y yield strength of material, in Newtons per square millimetre (N/mm 2 )
N Rd design resistance of the contact surface
N' Rd design resistance per unit length in Newton per millimetre (N/mm)
N Rk characteristic resistance of the contact surface
N' Rk characteristic resistance per unit length in Newton per millimetre (N/mm)
N Sd design axial force, in Newtons (N)
N' Sd design axial force per unit length, in Newton per millimetre (N/mm)
Y m partial material safety factor
H distance between horizontal section to be verified and rocker contact area, in millimetres (mm)
L effective length of rocker surface, in millimetres (mm)
R radius of convex contact surface, in millimetres (mm)
R 1 V Sd 4 4.1 4.2 4.3 R 1 radius of concave contact surface, in millimetres (mm)
V Sd total transverse or shear force in Newtons (N)
4.1 General
A rocker bearing shall be capable of transferring applied vertical and horizontal forces between the superstructure and the substructure. Line rockers shall permit rotation in one direction about the rocker axis. Point rockers shall permit rotation about any axis.
Rocker bearings may be used to resist horizontal forces. Resistance shall be by means of positive mechanical restraint such as shear dowels.
4.2 Load bearing capacity
The load bearing capacity of the rocker bearing shall be obtained from the design verification as a function ofthe geometry and the steel properties.
