1.1 This national standard is applicable to the power-driven bridge crane, portal crane, handling bridge, span winch, tower crane, barge crane, crane having the hoisting mechanism of electric block, deck crane, crawler crane, wheel-mounted crane, autohoist and cable crane.
Note: The barge crane and deck crane shall meet requirements in marine codes.
1.2 This national standard is the necessary rule and technical basis for the design calculation of the crane, but it doesn't include particular problems during the design of the crane. Other design calculation methods that have proven correct by the theory and practice, after the approval of the design department and the user, can also be adopted during the design of cranes. All kinds of professional design rules for crane and standards can't go against this national standard.
1.3 The establishment of this national standard has referred to Hoisting Equipment-Classification (ISO 4301-1980), Crane-Estimate of Wind Loading (ISO 4302-1981), Mobile Crane-Determination of Stability (ISO 4305-1981), Crane-Selection of Wire Ropes (ISO 4308-1981) and Test Specifications and Procedures of Crane (ISO 4310-1981) by the International Organization for Standardization (ISO).
1 Introduction
2. General
3 Structure
4. Mechanism
5 Electric
Annex A
Examples of Working Class of the Crane
Annex B
Estimation Method of the Dynamic Load Factor
Annex C
Acceleration (Deceleration) (a) of the Running Gear and Recommended Value of Corresponding Acceleration (Deceleration) Time (t)
Annex D
Swing Angle of Jib Crane Hoisting Wire Relative to the Vertical Line
Annex E
During the Deflection Running of the Crane, the Calculation Method for Horizontal Lateral Force Ps
Annex F
Materials on Calculation of Wind Loading
Annex G
Document about checking anti-overturning stability
Annex H
The Numerical Tables Document for Calculation of Axle Load and Bending Member Stability as well as Thin Plank Local Stability
Annex J
Calculated Length of Compression Members and Stability Calculation of Box Telescopic Type Arm Support
Annex K
Table for Structural Fatigue Strength Calculation
Annex L
Annex L
Annex M
Standard Load Spectrogram of the Crane Mechanism
Annex N
Examples of Working Class of the Mechanism
Annex P
Estimate of Transmission Mechanism Dynamic Load
Annex Q
Method for Determination of Fatigue Strength Limit δrk
Annex V
The Permissible Output Capacity P of YZR Series and JZR2 Series Motor under Different Load Duration Factor JC Values and Different CZ Values
Annex W
The JC, CZ and G Value in the Motor Capacity Selection Calculation of Crane Mechanism
Annex X
Lead Current Capacity
Annex Y
The Explanation on the Words Narration of the Standard
