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BS ISO 4301-3:2021

$102.76

Cranes. Classification – Tower cranes

Published By Publication Date Number of Pages
BSI 2021 16
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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:

  1. the number of working cycles;

  2. the load spectrum factor;

  3. the average displacements; and

  4. 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.

PDF Catalog

PDF Pages PDF Title
2 National foreword
6 Foreword
7 1 Scope
2 Normative references
3 Terms and definitions
4 Symbols
8 5 Classification of tower cranes
5.1 General
9 5.2 Classification of tower cranes erected from parts
10 5.3 Classification of self-erecting tower cranes
11 5.4 Classification of mobile self-erecting tower cranes
13 Annex A (informative) Information on the system of group classifications for cranes
15 Bibliography
BS ISO 4301-3:2021
$102.76