标准摘要
[中文适用范围]: 本文件根据使用条件,建立了臂架起重机及其机构的一般分类,这些条件通过以下方面表述: — 在臂架起重机规定的设计寿命期间要完成的总工作循环次数; — 代表要处理载荷相对频率的载荷谱系数; — 平均位移。 [外文原描述]: This document establishes a general classification of jib cranes and their mechanisms based on the service conditions, expressed by the following: — the total number of working cycles to be carried out during the specified design life of the jib crane; — the load spectrum factor which represents the relative frequencies of loads to be handled; — the average displacements.
英文名称Cranes — Classification — Part 4: Jib cranes