BS ISO 17440:2014

Foreword
1 Scope
2 Normative references
3 Terms, definitions and symbols
4 General requirements
5 Static strength
6 Fatigue strength
7 Verification of conformity with the requirements
8 Information for use
Annex A (informative) - Sample sets of single point hooks
Annex B (informative) - Sample set of ramshorn hooks
Annex C (informative) - Annexes A and B static limit
        design forces for hook bodies
Annex D (informative) - Annexes A and B fatigue limit
        design forces for hook bodies
Annex E (normative) - Hook body calculation and
        specific spectrum ratio factors
Annex F (informative) - Sample fatigue strength
        calculations of proofed hooks (with proof
        load applied)
Annex G (informative) - Sample set of hook shank
        and thread designs
Annex H (normative) - Bending of curved beams
Annex I (normative) - Calculation of hook suspension
        tilting resistance, articulation by a hinge or
        rope reeving system
Annex J (informative) - Guidance for selection of hook
        size using Annexes C to E
Annex K (normative) - Information to be provided by
        the hook manufacturer
Bibliography

Includes the following parts of hooks and types of hooks: - bodies of any type of point hooks made of steel forgings; -machined shanks of hooks with a thread/nut suspension.

This International Standard is intended to be used together with the other relevant International Standards in its series. As such, they specify general conditions, requirements and methods to prevent hazards in hooks as part of all types of cranes. This International Standard covers the following parts of hooks and types of hooks: bodies of any type of point hooks made of steel forgings; machined shanks of hooks with a thread/nut suspension. NOTE 1 The principles of this International Standard can be applied to other types of shank hooks and also where stress concentration factors relevant to that shank construction are determined and used. Plate hooks, which are those assembled from one or several parallel parts of rolled steel plates are not covered in this International Standard. This International Standard is applicable to hooks from materials with ultimate strength of not more than 800N/mm2 and yield stress of not more than 600N/mm2. The following is a list of significant hazardous situations and hazardous events that could result in risks to persons during normal use and foreseeable misuse. Clauses4 to 8 of this document are necessary to reduce or eliminate the risks associated with the following hazards: exceeding the limits of strength (yield, ultimate, fatigue); exceeding temperature limits of material; unintentional disengagement of the load from the hook. The requirements of this International Standard are stated in the main body of the document and are applicable to hook designs in general. The hook body and shank designs listed in AnnexesA, B and G are only examples and should not be referred to as requirements of this International Standard. This International Standard is applicable to cranes manufactured after the date of its publication, and serves as a reference base for product standards of particular crane types. NOTE 2 This International Standard deals only with the limit state method in accordance with ISO8686-1.