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BSI 24/30478859 DC 2024

BSI 24/30478859 DC 2024

$13.70

Draft BS EN 13001-3-5 Cranes – General design – Part 3-5: Limit states and proof of competence of forged and cast hooks

Published By Publication Date Number of Pages
BSI 2024 89
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PDF Catalog

PDF Pages PDF Title
7 European foreword
8 Introduction
9 1 Scope
2 Normative references
11 3 Terms and definitions, symbols and abbreviations
3.1 Terms and definitions
12 3.2 Symbols and abbreviations
Table 1 — Symbols and abbreviations
15 4 General requirements
4.1 Materials
4.1.1 General
Table 2 — Impact test requirement for hook material
Table 3 — Sulphur and phosphorus content
16 Table 4 — Hardenability of quenched and tempered materials, Jominy-ratio
4.1.2 Typical standards and grades
Table 5 — Suitable materials for hooks
17 4.1.3 Classification of hook materials
Table 6 — Mechanical properties for classified materials
4.2 Workmanship
4.2.1 Forged hooks
Table 7 — Requirement for the deformation ratio
18 4.2.2 Cast hooks
4.3 Manufacturing tolerances of forgings
4.4 Heat treatment
4.5 Cold forming by proof loading
19 4.6 Hook body geometry
Figure 1 — Hook dimensions
20 4.7 Hook shank machining
Figure 2 — Machined dimensions of shank
21 4.8 Nut
4.9 Effect of hook suspension
5 Static strength
5.1 General
22 5.2 Vertical design force
5.3 Horizontal design force
23 5.4 Bending moment of the shank
5.4.1 General
5.4.2 Bending moment due to horizontal force
5.4.3 Bending moment due to inclination of hook suspension
24 Figure 3 — Tilting of a hook in case of different distances of lifting movement
25 Figure 4 — Tilting of a hook suspension in a single rope reeving system
5.4.4 Bending moment due to eccentricity of vertical force
5.4.5 Exceptional case for ramshorn hooks
26 5.4.6 Design bending moment of the shank
5.5 Hook body, design stresses
5.5.1 Loadings
27 Figure 5 — Load actions on hook body and critical sections for calculation
5.5.2 Stress determination methods
5.5.3 Design stresses applying curved beam bending theory
28 5.6 Hook shank, design stresses
29 5.7 Hook, proof of static strength
5.7.1 General for hook body and shank
30 5.7.2 The use of static limit design force for verification of the hook body
6 Fatigue strength
6.1 General
31 6.2 Vertical fatigue design force
6.3 Horizontal fatigue design force
6.4 Fatigue design bending moment of shank
6.4.1 Bending moment due to horizontal force
32 6.4.2 Bending moment due to inclination of hook suspension
6.4.3 Bending moment due to eccentricity of vertical force
6.5 Proof of fatigue strength, hook body
6.5.1 Design stress calculation
33 6.5.2 Stress history in general
6.5.3 Stress history based upon classified duty
34 Table 8 — Fatigue design parameters for classified duty
35 6.5.4 Limit fatigue design stress
Table 9 — Characteristic fatigue strength of hook materials
36 6.5.5 Execution of the proof
Table 10 — Fatigue strength specific resistance factor
37 6.5.6 The use of fatigue limit design force for verification of the hook body
6.6 Proof of fatigue strength, hook shank
6.6.1 General
38 6.6.2 Design stress calculation
6.6.3 Applied stress cycles
39 Table 11 — Average number of horizontal accelerations pa
6.6.4 Basic fatigue strength of material
6.6.5 Stress concentration effects from geometry
40 Table 12 — Parameters for calculation of stress concentration factors
6.6.6 Fatigue strength of notched shank
41 6.6.7 Mean stress influence
Figure 6 — Smith diagram and transformation of stress amplitude
42 6.6.8 Transformation to stresses at zero mean stress
6.6.9 Stress history parameter in general
43 6.6.10 Stress history parameter based upon classified duty
6.6.11 Execution of the proof
44 6.7 Fatigue design of hook shanks for stand-alone hooks
7 Verification of the safety requirements and/or protective measures
7.1 General
7.2 Scope of testing and sampling
7.3 Testing of mechanical properties
45 7.4 Test loading
Figure 7 — Application of a test load or test forces on hook
8 Information for use
8.1 Maintenance and inspection
46 8.2 Marking
47 Figure 8 — Markings of a hook
8.3 Safe use
48 Annex A (informative) Sets of single hooks
A.1 A series of single hooks of type RS/RSN, dimensions of hook bodies
Figure A.1 — Symbols of dimensions for single hooks with concave flanks
49 Table A.1 — Dimensions of unmachined single hooks in millimetres (mm)
50 A.2 A series of single hooks of type RF/RFN, dimensions of hook bodies
Figure A.2 — Symbols of dimensions for single hooks with straight flanks
51 Table A.2 — Dimensions of unmachined single hooks in millimetres (mm)
52 A.3 A series of single hooks of type B, dimensions of hook bodies
Figure A.3 — Symbols of dimensions for single hooks
53 Table A.3 — Dimensions of unmachined single hooks in millimetres (mm)
54 Annex B (informative) A series of ramshorn hooks of type RS/RSN and RF/RFN, dimensions of hook bodies
Figure B.1 — Symbols of dimensions for ramshorn hooks
55 Table B.1 — Dimensions of unmachined ramshorn hooks in millimetres (mm)
56 Annex C (informative) Dimensional tolerances of hook bodies
Table C.1 — Single hooks, dimensional tolerances of unmachined hooks
57 Table C.2 — Ramshorn hooks, dimensional tolerances of unmachined hooks
58 Annex D (informative) Static limit design forces of hook bodies
D.1 Static limit design forces of hook bodies for hooks of type RS and RF
Table D.1 — Basic static limit design forces FRd,s,0 in kilonewtons (kN)
59 D.2 Static limit design forces of hook bodies for a series of hooks of type B, with additional materials
Table D.2 — Basic static limit design forces FRd,s,0 in kilonewtons (kN)
60 Annex E (informative) Fatigue limit design forces of hook bodies
E.1 Fatigue limit design forces of hook bodies for forged hooks of type RS and RF
Table E.1 — Fatigue limit design forces FRd,f in kilonewtons (kN)
61 E.2 Fatigue limit design forces of hook bodies for a series of hooks of type B, with additional, forged materials
Table E.2 — Fatigue limit design forces FRd,f in kilonewtons (kN)
62 E.3 Fatigue limit design forces of hook bodies for cast hooks of type RS and RF
Table E.3 — Fatigue limit design forces FRd,f in kilonewtons (kN)
63 E.4 Fatigue limit design forces of hook bodies for a series of hooks of type B, with additional, cast materials
Table E.4 — Fatigue limit design forces FRd,f in kilonewtons (kN)
64 Annex F (informative) Sets of hook shank and thread designs
F.1 A series of hook shank and thread designs, a knuckle thread
Figure F.1 — Symbols of dimensions for a hook shank and thread
65 Table F.1 — Dimensions of hook shank and thread in millimetres (mm)
66 F.2 A series of hook shank and thread designs, a metric thread
Figure F.2 — Symbols of dimensions for a hook shank and thread
67 Table F.2 — Dimensions of hook shank and thread in millimetres (mm)
68 F.3 A series of hook shank and thread designs, a modified metric thread
Figure F.3 — Symbols of dimensions for a hook shank and thread
69 Table F.3 — Dimensions of hook shank and thread in millimetres (mm)
70 F.4 Hook shank and thread designs for hooks of type B
Figure F.4 — Symbols of dimensions for a hook shank and thread
71 Table F.4 — Dimensions of hook shank and thread in millimetres (mm)
72 Annex G (normative) Bending of curved beams
G.1 Basic formulae for stresses
73 Figure G.1 — Symbols for curved beam bending calculation
G.2 Approximation of the reference moment of inertia
74 Figure G.2 — Factor k for a selection of section types
75 Annex H (normative) Calculation of hook suspension tilting resistance, articulation by a hinge or a rope reeving system
H.1 General
Figure H.1 — General presentation of hook tilting resistance
76 H.2 Articulation of hook by a hinge
Figure H.2 — A hook suspension with a hook articulation by a hinge
H.3 Articulation of a hook suspension by a balanced rope reeving
77 Figure H.3 — An example of a rope reeving system
Table H.1 — Rope forces in a tilted condition
79 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
80 I.4 Proof of fatigue strength
I.5 Final selection of hook
81 Annex J (informative) Information to be provided by the hook manufacturer
Table J.1 — Information to be provided by the hook manufacturer
82 Annex K (informative) Guidance on cold forming by proof loading of forged hooks
83 Annex L (informative) Selection of a suitable set of crane standards for a given application
85 Annex M (informative) List of significant hazards
86 Annex ZA (informative) Relationship between this European Standard and the essential requirements of Directive 2006/42/EC aimed to be covered
Table ZA.1 — Correspondence between this European Standard and Annex I of Directive 2006/42/EC
87 Annex ZB (informative) Relationship between this European Standard and the essential requirements of Regulation (EU) 2023/1230 aimed to be covered
Table ZB.1 — Correspondence between this European Standard and Annex III of Regulation (EU) 2023/1230
89 Bibliography

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