This standard specifies the terms and definitions, designation and specifications, requirements, test methods, inspection rules, acceptance, and marking, packaging, transportation and storage of bolted spherical node of space grid structures.
This standard is applicable to the quality control for parts and components of bolted spherical nodes of grid and double-layer reticulated shell (curved grid) structures.
2 Normative references
The following normative documents contain provisions which, through reference in this text, constitute provisions of this standard. For dated references, subsequent amendments to (excluding correction to), 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 undated references, the latest edition of the normative document applies.
GB/T 196 General purpose metric screw threads - Basic dimensions
GB/T 197-2003 General purpose metric screw threads - Tolerances
GB/T 222 Method of sampling steel for determination of chemical composition and permissible variations for product analysis
GB/T 223 Methods for chemical analysis of iron, steel and alloy
GB/T 228 Metallic materials - Tensile testing at ambient temperature
GB/T 229 Metallic materials - Charpy pendulum impact test method
