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BS EN 13001-3-5:2016+A1:2021

BS EN 13001-3-5:2016+A1:2021

$215.11

Cranes. General design – Limit states and proof of competence of forged and cast hooks

Published By Publication Date Number of Pages
BSI 2021 98
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This European Standard is to be used together with EN 13001-1 and EN 13001-2 and, as such, they specify general conditions, requirements and methods to prevent by design and theoretical verification, mechanical hazards in crane hooks.

It is intended to be used together with the other generic parts of EN 13001 series of standards, see Annex L.

This European Standard covers the following parts of hooks and types of hooks:

  • bodies of any type of hooks made of steel forgings or steel castings, including stainless steel;

  • machined shanks of hooks with a thread/nut suspension.

Principles of this European Standard can be applied to machined shanks of hooks in general. However, stress concentration factors relevant to designs not given in this standard would have to be determined and applied.

The hazards covered by this document are identified by Annex M.

NOTE 1 Plate hooks, which are those, assembled of one or several parallel parts of rolled steel plates, are not covered in this document.

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. Clauses 4 to 8 of this document are necessary to reduce or eliminate the risks associated with the following hazards:

  1. exceeding the limits of yield strength, ultimate strength, fatigue strength, brittle fracture;

  2. exceeding temperature limits of material.

The requirements of this document are stated in the main body of the document and are applicable to hook designs in general.

The commonly used hook body and shank designs listed in Annexes A, B and F are only examples and should not be referred to as requirements of this European Standard. Annex I gives guidance for the selection of a hook size, where a hook body is in accordance with Annex A or B. The selection of hook form is not limited to those shown in Annexes A and B.

This European Standard is applicable to cranes, which are manufactured after the date of approval of this European Standard by CEN, and serves as a reference base for product standards of particular crane types.

NOTE 2 This part of EN 13001 deals only with the limit state method in accordance with EN 13001–1

PDF Catalog

PDF Pages PDF Title
2 undefined
12 1 Scope
2 Normative references
14 3 Terms and definitions, symbols and abbreviations
3.1 Terms and definitions
15 3.2 Symbols and abbreviations
18 4 General requirements
4.1 Materials
4.1.1 General
19 4.1.2 Typical standards and grades
20 4.1.3 Classification of hook materials
4.2 Workmanship
4.2.1 !Forged hooks”
21 4.2.2 !Cast hooks
22 4.3 Manufacturing tolerances of forgings
4.4 Heat treatment
4.5 Cold forming by proof loading
4.6 Hook body geometry
24 4.7 Hook shank machining
25 4.8 Nut
4.9 Effect of hook suspension
5 Static strength
5.1 General
26 5.2 Vertical design force
5.3 Horizontal design force
27 5.4 Bending moment of the shank
5.4.1 General
5.4.2 Bending moment due to horizontal force
28 5.4.3 Bending moment due to inclination of hook suspension
29 5.4.4 Bending moment due to eccentricity of vertical force
30 5.4.5 Exceptional case for ramshorn hooks
5.4.6 Design bending moment of the shank
31 5.5 Hook body, design stresses
5.5.1 Loadings
5.5.2 Stress calculation methods
32 5.5.3 Design stresses
33 5.6 Hook shank, design stresses
5.7 Hook, proof of static strength
5.7.1 General for hook body and shank
34 5.7.2 !The use of static limit design force for verification of the hook body
35 6 Fatigue strength
6.1 General
6.2 Vertical fatigue design force
6.3 Horizontal fatigue design force
36 6.4 Fatigue design bending moment of shank
6.4.1 Bending moment due to horizontal force
6.4.2 Bending moment due to inclination of hook suspension
6.4.3 Bending moment due to eccentricity of vertical force
37 6.5 Proof of fatigue strength, hook body
6.5.1 Design stress calculation
6.5.2 Stress history in general
38 6.5.3 Stress history based upon classified duty
39 6.5.4 Limit fatigue design stress
41 6.5.5 Execution of the proof
6.5.6 The use of fatigue limit design force for verification of the hook body
42 6.6 Proof of fatigue strength, hook shank
6.6.1 General
6.6.2 Design stress calculation
43 6.6.3 Applied stress cycles
44 6.6.4 Basic fatigue strength of material
6.6.5 Stress concentration effects from geometry
45 6.6.6 Fatigue strength of notched shank
46 6.6.7 Mean stress influence
47 6.6.8 Transformation to stresses at zero mean stress
48 6.6.9 Stress history parameter in general
6.6.10 Stress history parameter based upon classified duty
49 6.6.11 Execution of the proof
6.7 Fatigue design of hook shanks for stand alone hooks
7 Verification of the safety requirements and/or protective measures
7.1 General
50 7.2 Scope of testing and sampling
7.3 Testing of mechanical properties
7.4 Test loading
51 8 Information for use
8.1 Maintenance and inspection
52 8.2 Marking
53 8.3 Safe use
54 Annex A (informative)Sets of single hooks
A.1 !A series of single hooks of type RS/RSN, dimensions of hook bodies”
56 A.2 !A series of single hooks of type RF/RFN, dimensions of hook bodies”
58 A.3 !A series of single hooks of type B, dimensions of hook bodies”
60 Annex B (informative)!A series of ramshorn hooks of type RS/RSN and RF/RFN, dimensions of hook bodies”
62 Annex C (informative)!Dimensional tolerances of hook bodies”
64 Annex D (normative)Static limit design forces of hook bodies
D.1 Static limit design forces of hook bodies for hooks of type RS and RF
66 D.2 Static limit design forces of hook bodies for a series of hooks of type B, with additional materials
67 Annex E (normative)Fatigue limit design forces of hook bodies
E.1 !Fatigue limit design forces of hook bodies for forged hooks of type RS and RF”
69 E.2 !Fatigue limit design forces of hook bodies for a series of hooks of type B, with additional, forged materials”
E.3 Fatigue limit design forces of hook bodies for cast hooks of type RS and RF
71 E.4 Fatigue limit design forces of hook bodies for a series of hooks of type B, with additional, cast materials
72 Annex F (informative)Sets of hook shank and thread designs
F.1 A series of hook shank and thread designs, a knuckle thread
74 F.2 A series of hook shank and thread designs, a metric thread
76 F.3 A series of hook shank and thread designs, a modified metric thread
78 F.4 Hook shank and thread designs for hooks of type B
80 Annex G (normative)Bending of curved beams
G.1 Basic formulae for stresses
81 G.2 Approximation of the reference moment of inertia
83 Annex H (normative)Calculation of hook suspension tilting resistance,articulation by a hinge or a rope reeving system
H.1 General
84 H.2 Articulation of hook by a hinge
H.3 Articulation of a hook suspension by a balanced rope reeving
87 Annex I (informative)Guidance for the selection of a hook body size using Annexes D and E
I.1 General
I.2 Case description
I.3 Proof of static strength
88 I.4 Proof of fatigue strength
I.5 Final selection of hook
89 Annex J (normative)Information to be provided by the hook manufacturer
90 Annex K (informative)!Guidance on cold forming by proof loading of forged hooks”
91 Annex L (informative)Selection of a suitable set of crane standards for a given application
93 Annex M (informative)!List of hazards
95 Annex ZA (informative)!Relationship between this European Standard and the essential requirements of Directive 2006/42/EC aimed to be covered

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