GB/T 30024-2020 (English Version) PDF

Scope: This standard specifies the general conditions, requirements, methods and parameter values for proficiency testing of crane metal structures based on the limit state method, to be used in conjunction with the applicable part of ISO 8686 for loads and load combinations. This standard is general and applies to all types of cranes. For special and special cranes, other standards may specify the specific requirements for proficiency verification. Capability verification by means of theory-verified calculations and/or tests aimed at avoiding hazards associated with structural performance at established strength limits (e.g. yield limit, fatigue, brittle fracture). According to ISO8686 1, two methods can be used for proficiency testing calculations: the limit state method of the sub-item safety factor, and the allowable stress method of the overall safety factor. Although the validity of the allowable stress method is not excluded, this standard only involves the limit state method. This standard does not include proficiency testing calculations for accessory components (such as railings, stairs, walkways, cabs). However, the impact of these auxiliary components on the main structure needs to be considered.

GB/T 30024-2020 Referenced Document

GB/T 30024-2020 Cranes—Proof of competence of steel structures
GB/T 6974.1-2008 Granes.Vocabulary.Part 1:General
ISO 148-1:2009 Metallic materials - Charpy pendulum impact test - Part 1: Test method
ISO 286-2:2010 Geometrical product specifications (GPS) - ISO code system for tolerances on linear sizes - Part 2: Tables of standard tolerance classes and limit deviations for holes and shafts
ISO 4042 Threaded components — Electroplated coatings*， 2024-04-21 Update
ISO 4301-1:2016 Cranes - Classification - Part 1: General
ISO 5817:2014 Welding - Fusion-welded joints in steel, nickel, titanium and their alloys (beam welding excluded) - Quality levels for imperfections
ISO 7452:2013 Hot-rolled steel plates - Tolerances on dimensions and shape
ISO 898-1:2013 Mechanical properties of fasteners made of carbon steel and alloy steel - Part 1: Bolts, screws and studs with specified property classes - Coarse thread and fine pitch thread