1 Scope
This standard specifies the product specification, classification, technical requirements, test methods, inspection rules and the requirements of marking, packaging, storage, transport, installation and maintenance of spherical bearings.
This standard is applicable to spherical bearings in the bridge engineering with the bearing capacity from 1500kN ~ 60 000kN and used as a reference for the spherical bearings for other engineering.
2 Normative References
The following documents contain provisions which, through reference in this standard, constitute provisions of this standard. For dated reference, subsequent amendments to (excluding any corrigendum), or revisions of, any of these publications do not apply. However, parties to agreements based on this standard are encouraged to investigate the possibility of applying the most recent editions of the standards indicated below. For any undated references, the latest edition of the document referred to applies.
GB/T 699 Quality Carbon Structural Steels
GB/T 700 Carbon Structural Steels (GB/T 700-2006, ISO 630: 1995, NEQ)
GB/T 985.1 Recommended Joint Preparation for Gas Welding, Manual Metal Arc Welding, Gas-shield Arc Welding and Beam Welding (GB/T 985.1-2008, ISO 9692-1: 2003, Welding and allid processes - Recommendations for joint preparation - Part 1: Manual metal are welding, gas-shield arc welding, gas welding, TIG welding and beam welding of steels, MOD)
GB/T 1033.1 Plastics - Methods for Determining the Density of Non-cellular Plastics - Part 1: Immersion Method Liquid Pyknometer Method and Titration Method (GB/T 1033.1-2008, ISO 1183-1: 2004, IDT)
GB/T 1040 Plastics - Determination of Tensile Properties (GB/T 1040-2006, ISO 527, IDT)
GB/T 1184 Geometrical Tolerancing - Geometrical Tolerance for Features without Individual Tolerance Indications (GB/T 1184-1996, eqv ISO 2768-2: 1989)
GB/T 1804 General Tolerances - Tolerances for Linear and Angular Dimensions without Individual Tolerance Indications (GB/T 1804-2000, eqv ISO 2768-1: 1989)
GB/T 3280 Cold Rolled Stainless Steel Plate Sheet and Strip
GB/T 3398.1 Plastics - Determination of Hardness - Part 1: Ball Indentation Method (GB/T 3398.1-2008, ISO 2039-1: 2001, IDT)
GB/T 4956 Non-magnetic Coatings on Magnetic Substrates - Measurement of Coating Thickness - Magnetic Method (GB/T 4956-2003, ISO 2178: 1982, IDT)
GB/T 7233 Methods for Ultrasonic Testing and for Specifying Quality Levels of Steel Castings (GB/T 7233-1987, neq BS 6208: 1982)
GB/T 7760 Rubber, Vulcanized or Thermoplastic - Determination of Adhesion to a Rigid Substrate - 90 Degrees Peel Method (GB/T 7760-2003, ISO 813: 1997, MOD)
GB/T 11352 Carbon Steel Castings for General Engineering Purposes (GB/T 11352-2009, ISO 3755: 1991, ISO 4990: 2003, MOD)
GB/T 11379 Metallic Coatings - Electroplated Coatings of Chromium for Engineering Purposes (GB/T 11379-2008, ISO 6158: 2004, IDT)
GJB 3026 Specification for PTFE Plates
HG/T 2502 5201 Silicone Grease
JB/T 5943 The Universal Technique Specification of Weldment for Constriction Materials Machine
TB/T 1527 The Protection Coating of Railway Steel Bridges against Corrosion
3 Product Classification, Model, Specification and Structural Form
3.1 Classification
Foreword I
1 Scope
2 Normative References
3 Product Classification, Model, Specification and Structural Form
4 Technical Requirements
5 Test Methods
6 Inspection Rules
7 Marking, Packaging, Transport and Storage
8 Installation and Maintenance
Appendix A (Normative) Test Methods of Vertical Bearing Capacity
Appendix B (Normative) Test Methods of Horizontal Bearing Capacity
Appendix C (Normative) Test Methods of Friction Coefficient
Appendix D (Normative) Test Methods of Rotation Performance
