标准摘要
[中文适用范围]： 本文件规定了建筑施工用塔式起重机的分类，根据标准使用条件在其他部分中定义，主要用以下内容表示： ——工作循环数； ——载荷谱系数； ——平均位移； - 结构或机械计算中使用的因子的附加值。 用于建筑工程的塔式起重机专门配备了吊钩作为负载搬运装置。 对于旨在用于其他目的和/或配备有其他负载装卸装置的塔式起重机，根据塔式起重机的指定用途可能产生其他值。 [外文原描述]： This document provides the classification of tower cranes for construction work as defined in ISO 4306‑3, and gives specific requirements for steel supporting structure, mechanisms, ropes and further components basing on standard service conditions, mainly expressed by the following: — the number of working cycles; — the load spectrum factor; — the average displacements; and — additional values for factors to be used at the structural or mechanical calculation. Tower cranes for construction work are exclusively equipped with a hook as load-handling device. For tower cranes intended to be used for other purposes and/or equipped with other load handling devices, other values according to the specified usage of the tower crane may result.
英文名称Cranes — Classification — Part 3: Tower cranes