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TitleRigging
TagsManufactured Goods Wire Rope Crane (Machine) Wear
File Size6.4 MB
Total Pages244
Document Text Contents
Page 1

RIGGING

WorkCover. Watching out for you.

GUIDE 1995

New South Wales Government

Page 2

Disclaimer

This publication contains information regarding occupational health, safety, injury management or workers compensation. It includes some of your

obligations under the various workers compensation and occupational health and safety legislation that WorkCover NSW administers. To ensure you

comply with your legal obligations you must refer to the appropriate Acts.

This publication may refer to WorkCover NSW administered legislation that has been amended or repealed. When reading this publication you

should always refer to the latest laws. Information on the latest laws can be checked at www.legislation.nsw.gov.au or contact 1300 656 986.

© WorkCover NSW

A guide to rigging

Edited by David West Expert advice from Des Highfield, Ivan Bignold,

Phil Court, Chris Turner, Barry Haines, Roy Cullen and Jack Campbell

1. Rigging

2. Certification

3. Occupational health and safety

Second edition 1997

Page 122

124

Safety nets

Industrial safety nets are suitable for some types of structures such as bridges and very high portal

frames. They can provide an effective means of fall protection while allowing the steel erectors freedom

of movement on the structural framework. Guidance on the installation and maintenance of safety nets is

given in Chapter 14.

Safety line systems

Safety line systems involve the use of safety harnesses and can include various methods of anchorage

including static lines, life lines and fixed anchorage points for inertia reels or lanyards.

The use of these systems as a primary means of fall protection is not generally recommended and should

only be considered where none of the other methods mentioned previously are practical. Guidance on the

installation and use of safety line systems is given in Chapter 15.

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125

Chapter 12 Cantilevered crane loading platforms

Introduction

Cantilevered crane loading platforms (CCLPs) are temporary

platforms which are often used during the construction or

demolition of multistorey buildings and structures so that materials

and equipment can be shifted to or from floor levels.

The platform is generally cantilevered from the face of the building

to allow loads to be directly raised or lowered by tower cranes or

mobile cranes.

CCLPs can also be used for other purposes such as catch platforms

to contain falling debris at the building perimeter and as supporting

structures for scaffolds constructed at the building perimeter. They

are sometimes setup in a simply-supported mode such as over

penetrations or voids, for use as loading platforms, access platforms

or protection decks.

CCLPs are available in a variety of designs including fully fabricated and demountable types. They may

have either fixed platforms or rolling platforms. Their needles can be anchored to the supporting structure

in several ways, such as through bolting, bolting into cast in inserts, or reveal propping. Reveal props may

be purpose designed, integral components or they may be general purpose adjustable building props laced

together with scaffold tubes and couplers.

Certification

The installation and dismantling of CCLPs must be carried out (or directly supervised) by a person

holding either the Basic Rigging certificate or the lntermediate Scaffolding certificate (or equivalent

old certificates).

Whenever a CCLP is located or removed by a crane, the slinging and load direction must be controlled by

a person with a Dogging or Rigging certificate (or equivalent old certificate).

The propping of CCLPs with adjustable building props and scaffold tubes and couplers or other types of

scaffolding equipment must be controlled by a person with an lntermediate Scaffolding certificate.

The platform

The platform needles should be positively secured against lateral displacement.

A minimum of two signs stating both the maximum uniformly distributed load and the maximum

concentrated load that the platform can carry must be in clear view on the platform.

The platform decking should be flush with and abutting the floor slab, otherwise suitable ramps

should be fitted.

There should not be any gap between the platform and the site handrails.

Platforms located on the side of a building facing a public roadway should not extend beyond the line of

the overhead protection provided for the public.

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249

two leg slings, 85

two way radios, 213

uncoiling, of ropes, see flexible steel wire rope;

natural fibre rope

uncollared eyebolts, 70, 71

union screws, 66

volume, calculation of, 216-8

wall ties, 140

Warriflex, 13

Warrington construction, 13

washers, 116, 116

wedge rope sockets, 62-3, 62-3

weights, table of masses, 219-20

West-Countryman’s whipping, 40, 40

whippings, 11, 40, 40

‘white knuckle’, 116

winches, felling with, 157-9

wire hoisting, for materials hoists, 130

wire rope, see flexible steel wire rope

wire rope grips, 63, 65, 65-6

wires

broken, 17, 17

contrasted with strands, 8

reduction in diameter, 18, 18

WLL, see working load limit (WLL)

work cages, 120, 184, 187

work platforms, see mast climbers

work boxes, crane-lifted, 122-3

working aloft

crane-lifted work boxes, 122-3

elevating work platforms, 118-9

minimising risk, 117, 118

portable ladders, 121-2

safety line systems, 124

safety nets, 124

scaffolds, 119-21

work practices, 117

working limit switches, 166

working load limit (WLL)

cantilevered platform materials hoist, 130

chain, 60, 81-2

defined, 80

flat webbing and round synthetic slings, 83

flexible steel wire rope, 80, 81

girder trolleys, 183

hooks, 68

internal guided platform hoists, 170

jacks, 76

natural fibre rope, 39, 82

pallets, 92

rule of thumb tables, 80

shackles, 69-70

spreader beams, 74

static line spans, 140

suspended scaffolds, 187, 191-2

synthetic fibre rope, 48

turnbuckles, 67

worming, natural fibre rope, 41

yarns, in rope, 37

Page 244

Catalogue No. 005 WorkCover Publications Hotline 1300 799 003

WorkCover NSW 92-100 Donnison Street Gosford NSW 2250
Locked Bag 2906 Lisarow NSW 2252 WorkCover Assistance Service 13 10 50
Website www.workcover.nsw.gov.au

ISBN 0 7310 5159 9 ©Copyright WorkCover NSW 1106. V1.00 Production and printing by Salmat – 02 9743 8777

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