1 Subject Content and Application Scope
This standard specifies the basic rules and calculation methods which shall be complied with in the design calculation of tower crane. Other calculation methods which have been theoretically and practically proven to be correct and reliable may also be adopted.
This standard is applicable to various types of and functions of power-driven tower cranes.
This standard is not applicable to the tower cranes converted from truck, tire and crawler cranes.
Contents
1 Subject Content and Application Scope
2 Normative References
3 Symbols and Codes
4 General Provisions
5 Structure
6 Mechanism
7 Electricity
Appendix A Numerical Table Data Used for Stability Calculation of Axial Compression and Compression-bending Structural Members (Additional)
Appendix B Calculation table for Fatigue Strength of the Structure
Appendix C Examples for Working Grades of Tower Cranes (Informative)
Appendix D Estimation Method of Lifting Impact Coefficient Φ1 (Informative)
Appendix E Load Generated by the Acceleration (Deceleration) of Transmission Mechanism (Informative)
Appendix F Selection of Rail and Wheel Combination (Informative)
Appendix G Determination of Axial Force F (Informative)
Appendix H Effective Length Coefficient μ (Informative)
Appendix I Calculation formula for Transverse Load Bending Moment Coefficient CH (Informative)
Appendix J Stress Amplitude Method For Structural Fatigue Strength Calculation
(Informative)
Appendix K Standard Load Spectrogram of Tower Crane Mechanism (Informative)
Appendix L Examples for Working Grades of Tower Crane Mechanism (Informative)
Appendix M JC and Z Values in the Calculation for Selection of Motor Capacity of Tower Crane Mechanism (Informative)
Appendix N Overload Checking of Motor (Informative)
Appendix O Heating Check of Induction Motor (Informative)
Appendix P Stability Check of Oil Cylinder (Informative)
Appendix Q Determine Method for Fatigue Strength Limit σrk (Informative)
Appendix R Permissible Physical Quantity of Commonly-Used Friction Surface Materials (Informative)
Appendix S Selection Coefficient C of Steel Wire Rope (Informative)
Appendix T Calculation Method for Coiling Block Wall Thickness (Informative)
Appendix U Selection Calculation Method of Slewing Bearing (Informative)
Appendix V Current Carrying Capacity of Conductor (Informative)
Additional Explanation
