96/106381 DC : DRAFT AUG 1996

Foreword
1 Scope
2 Normative references
3 Definitions, symbols and abbreviations
  3.1 Definitions
  3.2 Symbols
  3.3 Abbreviations
4 Requirements
  4.1 General
  4.2 Functional requirements
  4.3 Performance requirements for complete bearings
      4.3.1 Shear modulus
      4.3.2 Shear bond
      4.3.3 Compression stiffness
      4.3.4 Repeated loading in compression
      4.3.5 Static rotation
      4.3.6 Ozone resistance
      4.3.7 PTFE / elastomer shear bond test
  4.4 Material properties
      4.4.1 General
      4.4.2 Elastomer Physical and mechanical properties
      4.4.3 Steel plates
      4.4.4 Sliding surfaces
5 Design rules
  5.1 General
  5.2 Design values of actions
  5.3 Laminated bearings
      5.3.1 Types of laminated bearings
      5.3.2 Sizes of laminated bearings and shapes
      5.3.3 Basis of design
  5.4 Plain pad bearings
      5.4.1 Geometry
      5.4.2 Loads
      5.4.3 Shear strain
      5.4.4 Stability criteria
      5.4.5 Maximum forces, moments and deformations exerted
            on the structure
  5.5 Strip bearings
      5.5.1 Geometry
      5.5.2 Loads
      5.5.3 Shear strain
      5.5.4 Stability criteria
      5.5.5 Maximum forces, moments and deformations exerted
            on the structure
  5.6 Sliding elastomeric bearings
6 Manufacturing tolerance
  6.1 Plan size
  6.2 Thickness of elastomer layers
      6.2.1 Internal layer
      6.2.2 External layer on top and bottom surfaces for
            laminated bearings
      6.2.3 Tolerances of total thickness of bearing system
      6.2.4 Edge cover thickness for laminated bearing
  6.3 Reinforcing steel plate for laminated Bearings
7 Special requirements
  7.1 Tolerances of the contact area of the structure
  7.2 Positive means of location
  7.3 Marking and labelling
8 Conformity evaluations
  8.1 General
  8.2 Testing
      8.2.1 Type testing
      8.2.2 Routine testing
      8.2.3 Audit-testing when third party control is required
  8.3 Preferred bearings for testing purposes
  8.4 Samples for audit testing in case of third party control
  8.5 Non-compliance with the technical specification
9 criteria for - in service inspection
Annex A Elliptical bearings
Annex B Rotational limitation factor
Annex C Maximum Design strain in laminated bearings
Annex D Shear modulus
Annex E Determination of action effects
Annex F Production control
Annex G Factory production control requirements
Annex H Typical bearing schedule
Annex J Compression test method
Annex K Shear modulus test method
Annex L Shear bond test method
Annex M Restoring moment test method
Annex N Eccentric loading test method
Annex P Repeated loading compression test method
Annex Q Resistance to ozone test method
Annex R PTFE / elastomer shear bond test method