Standard
Track updates
AS 5221.3:2024
[Current]Cranes - Design principles for loads and load combinations, Part 3: Overhead travelling and portal bridge cranes (ISO 8686-5:2017, MOD)
AS 5221.3:2024 adopts and modifies ISO 8686 5:2017, which establishes the application of AS 5221.1 to overhead travelling and portal bridge cranes as defined in ISO 4306 1 and gives specific values for the factors to be used
Published: 23/08/2024
Pages: 32
Table of contents
Cited references
Content history
Table of contents
Header
About this publication
Preface
Foreword
1 Scope
2 Normative references
3 Terms and definitions
4 Symbols
5 Loads and applicable factors
5.1 Regular loads
5.1.1 General
5.1.2 Hoisting and gravity effects acting on the mass of the crane
5.1.3 Hoisting an unrestrained grounded load
5.1.3.1 General
5.1.3.2 Determination of a dynamic factor,ϕ2t
5.1.3.3 Selection of hoisting speed
5.1.3.4 Calculation of factor,ϕ2
5.1.3.5 Determination of ϕ2 by testing
5.1.4 Loads caused by travelling on an uneven surfaces
5.1.5 Loads caused by acceleration of drives
5.1.6 Positioning of loads
5.1.7 Loads induced by displacements
5.2 Occasional loads
5.2.1 General
5.2.2 Loads caused by skewing
5.2.2.1 General
5.2.2.2 Skew angle
5.2.2.3 Friction slip relationship
5.2.2.4 Selection of calculation methods
5.2.2.5 Skewing forces for underhung cranes
5.3 Exceptional loads
5.3.1 General
5.3.2 Test loads
5.3.3 Loads due to buffer forces
5.3.4 Loads caused by emergency cut-out
5.3.5 Loads caused by apprehended failure of mechanism or components
5.3.6 Loads due to dynamic cut-off of hoisting movement by lifting force limiters
5.3.6.1 Loads due to dynamic cut-off of hoisting movement by directly acting lifting force limiters
5.3.6.2 Loads due to dynamic cut-off of hoisting movement by indirectly acting lifting force limiters
5.4 Miscellaneous loads
6 Applicable loads, load combinations and factors
7 Combination of acceleration effects
Annex A
A.1 General
A.2 Calculation of skewing forces by method RIGID
A.2.1 Calculation model
A.2.2 Shaft coupling
A.2.3 Examples
A.2.4 Notes
A.3 Calculation of skewing forces by method FLEXIBLE
A.3.1 General
A.3.2 Calculation model
A.3.3 Example
A.3.4 Notes
Bibliography
Appendix ZZ
ZZ.1 Scope
ZZ.2 Modifications
Cited references in this standard
[Current]
Cranes - Tolerances for wheels and travel and traversing tracks - Part 1: General
[Current]
Cranes - Design principles for loads and load combinations - Part 1: General
One-time Purchase
Access via web browser on any device
One-time purchase
Single publication
Offline access via PDF^
$141.91 AUD
Inclusive of GSTFormat *
Web Reader
Licenses *
1 user
Total$141.91 AUD
IMPORTANT