BS ISO 20332:2016

Foreword
1 Scope
2 Normative references
3 Terms, definitions, symbols and abbreviated terms
4 General
5 Proof of static strength
6 Proof of fatigue strength
7 Proof of elastic stability
Annex A (informative) - Limit design shear force, F[v,Rd,]
        in shank per bolt and per shear plane for multiple shear
        plane connections
Annex B (informative) - Preloaded bolts
Annex C (normative) - Design weld stresses, [sigma][w,Sd]
        and [tau][w,Sd]
Annex D (normative) - Values of slope constant, m, and
        characteristic fatigue strength, [delta][sigma][c],
        [delta][tau][c]
Annex E (normative) - Calculated values of limit design
        stress range, [delta][sigma][Rd] and [delta][sigma][Rd,1]
Annex F (informative) - Evaluation of stress cycles - Example
Annex G (informative) - Calculation of stiffnesses for connections
        loaded in tension
Bibliography

Provides 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.

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.