AS 2550.4-1994

1 - AS 2550.4-1994 CRANES-SAFE USE - TOWER CRANES
4 - PREFACE
5 - CONTENTS
6 - 1 SCOPE AND APPLICATION
6 - 1.1 Scope
6 - 1.2 Application
6 - 2 REFERENCED DOCUMENTS
6 - 3 DEFINITIONS
6 - 4 PLANNING
6 - 5 SELECTION
7 - 6 SITING-GENERAL REQUIREMENTS
7 - 7 PERSONNEL
7 - 8 PRE-ERECTION INSPECTION AND TESTING
7 - 8.1 General
8 - 8.2 Specific inspections and tests
8 - 8.3 Mandatory tests
8 - 8.4 Advisory tests
8 - 8.5 Crane base
9 - 9 ERECTION AND DISMANTLING
9 - 9.1 General
9 - 9.2 Wind loads
9 - 9.3 Assembly marking
9 - 9.4 Boom connection pin safety
9 - 9.5 Outriggers
9 - 9.6 Crane stability during erection and dismantling procedures
9 - 9.7 Erection criteria
9 - 10 PERSONNEL SAFETY
9 - 10.1 Operational safety zone
9 - 10.2 Safety harness
9 - 10.3 Tool restraints
9 - 10.4 Base trapping points
10 - 11 POST ERECTION, INSPECTION AND TESTING
10 - 11.1 General
10 - 11.2 Inspection
10 - 11.3 Load testing
11 - 12 OPERATION
11 - 12.1 General
11 - 12.2 Operation near aerial conductors
11 - 12.3 Rated capacity
11 - 12.4 Leaving the crane unattended
11 - 12.5 Wind effects
11 - 12.6 Fire extinguisher
11 - 12.7 Supervision of tower crane
12 - 13 MAINTENANCE AND REPAIR
12 - 14 RECORDS
13 - APPENDIX A - TOWER CRANE INSPECTION AND TESTING CERTIFICATE
14 - APPENDIX B - TOWER CRANE INSPECTION AND TESTING CHECK SHEETS

Specifies the requirements for the safe use of tower cranes, covering planning, selection, siting, personnel, inspection, testing, erection, dismantling, personnel safety, operation, maintenance and repair. The appendices provide typical inspection and testing certificates as well as inspection testing check sheets.

This Standard specifies the requirements for the safe use of tower cranes.ApplicationThis Standard shall be applied for the safe use of tower cranes in engineering, including building construction sites, engineering construction, docksides, shipbuilding and maintenance work.In addition, this Standard should be applied for the safe use of derrick, jib and portal boom cranes.This Standard is complementary to AS 2550.1-1993, but the requirements given herein shall take precedence over the corresponding requirements given in that document.NOTES:1 Typical examples of tower cranes are given in AS 1418.4.2 Power-driven mobile cranes fitted with tower attachments are not within the scope of this Standard (see AS 2550.5).3 Offshore cranes are not within the scope of this Standard.

First published as part of AS 2550-1982.
Revised and redesignated in part as AS 2550.4-1994.