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
