AS 5224:2021 pdf Cranes — Proof of competence of steel structures (ISO 20332:2016, MOD)
1 Scope
This International Standard sets forth general conditions, requirements, methods, and parameter values for performing proof-of-competence determinations of the steel structures of cranes based upon the limit state method. It is intended to be used together with the loads and load combinations of the applicable parts of ISO 8686. This International Standard is general and covers cranes of all types. Other International Standards can give specific proof-of-competence requirements for particular crane types. Proof-of-competence determinations, by theoretical calculations and/or testing, are intended to prevent hazards related to the performance of the structure by establishing the limits of strength, e.g. yield, ultimate, fatigue, and brittle fracture. According to ISO 8686-1 there are two general approaches to proof-of-competence calculations: the limit state method, employing partial safety factors, and the allowable stress method, employing a global safety factor. Though it does not preclude the validity of allowable stress methodology, ISO 20332 deals only with the limit state method. Proof-of-competence calculations for components of accessories [e.g. handrails, stairs, walkways, cabins) are not covered by this International Standard. However, the influence of such attachments on the main structure needs to be considered.
2 Normative references
The following documents, in whole or in part, are normatively referenced in this document and are
indispensable for its application. For dated references, only the edition cited applies. For undated
references, the latest edition of the referenced document (including any amendments) applies.
ISO 148- 1:2009, Metallic materials – – Charpy pendulum impact test – Part 1: Test method
ISO 273:1979, Fasteners – Clearance holes for bolts and screws
ISO 286-2:2010, Geometrical product specifications [GPS) – – ISO code system for tolerances on linear
sizes一Part 2: Tables of standard tolerance classes and limit deviations for holes and shafts. Corrected by ISO 286-2:2010/Cor 1:2013.
ISO 404:1992, Steel and steel products – General technical delivery requirements
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一- Coarse thread and fine pitch thread
ISO 4042:1999, Fasteners – Electroplated coatings
ISO 4301-1:2016, Cranes and lifting appliances – Classification – Part 1: General
ISO 4306- 1:2007, Cranes一- Vocabulary- Part 1; General
ISO 5817:2014, Welding一Fusion-welded joints in steel, nickel, titanium and their alloys (beam welding
excluded)一Quality levels for imperfections
ISO 7452:2013, Hot-rolled steel plates一Tolerances on dimensions and shape
ISO 7788:1985, Steel – – Surface finish of hot-rolled plates and wide flats一Delivery requirements
ISO 8686-1:2012, Cranes – – Design principles for loads and load combinations一Part 1: General
ISO 8686-2, Cranes一Design principles for loads and load combinations一Part 2: Mobile cranes
ISO 8686-3, Cranes – – Design principles for loads and load combinations- Part 3: Tower cranes
ISO 8686-4, Cranes一Design principles for loads and load combinations- – Part 4: jib cranes
ISO 8686-5, Cranes一Design principles for loads and load combinations- Part 5: Overhead travelling
and portal bridge cranes
ISO 9013:2002, Thermal cutting – Classification of thermal cuts – Geometrical product specification and quality tolerances
ISO 9587:2007, Metallic and other inorganic coatings一Pretreatments of iron or steel to reduce the risk of hydrogen embrittlement
ISO 12100, Safety of machinery一Basic concepts, general principles for design – – Risk assessment and risk reduction
ISO 15330:1999, Fasteners 一Preloading test for the detection of hydrogen embrittlement一Parallel
bearing surface method
ISO 17659:2002, Welding一- Multilingual terms for welded joints with ilustrations
3 Terms, definitions, symbols and abbreviated terms
For the purposes of this document, the terms and definitions given in ISO 12100, ISO 17659,
ISO 4306-1:2007, Clause 6, and the following terms, definitions, symbols and abbreviated terms (see
Table 1) apply.
3.1 grade of steel
marking that defines the strength of steel, usually defining yield stress, fy, sometimes also ultimate
strength,fu
3.2 quality of steel
marking that defines the impact toughness and test temperature of steel
AS 5224:2021 pdf Cranes — Proof of competence of steel structures (ISO 20332:2016, MOD)
