ASNZS1170.1 2002 Structural Design Actions - Permanent, imposed and other actions Supplement

STANDARDS AUSTRALIA/STANDARDS NEW ZEALAND

Australian/New Zealand Standard

Structural design actions—Permanent, imposed and other actions—Commentary

(Supplement to AS/NZS 1170.1:2002)

SECTION C1 SCOPE AND GENERAL

C1.1 SCOPE

This Commentary is intended to be read in conjunction with AS/NZS 1170.1:2002. The commentary includes explanations of the provisions and in some cases suggests approaches that may satisfy the intent of the Standard. Commentary Clauses are not mandatory. Lists of references are also given for further reading.

Construction actions are now specifically covered in AS/NZS 1170.0. Some comment on construction activity is given under Clause C3.1.

C1.2 APPLICATION

C1.3 DETERMINATION OF DESIGN ACTIONS

This Clause reflects the philosophy outlined in AS/NZS 1170.0 that design should be verified using appropriate loads.

C1.4 REFERENCED DOCUMENTS

The following documents are referred to in this Commentary:

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AS/NZS 1170.1 Supp 1:2002

This Joint Australian/New Zealand Standard supplement was prepared by Joint Technical Committee BD-006, General Design Requirements and Loading on Structures. It was approved on behalf of the Council of Standards Australia on 29 March 2002 and on behalf of the Council of Standards New Zealand on 28 March 2002. It was published on 4 June 2002.

The following are represented on Committee BD-006:

• Association of Consulting Engineers Australia
• Australian Building Codes Board
• Australian Institute of Steel Construction
• Building Research Association of New Zealand
• Cement and Concrete Association of Australia
• CSIRO Building, Construction and Engineering
• Cyclone Testing Station—James Cook University
• Electricity Supply Association of Australia
• Housing Industry Association
• Institution of Engineers Australia
• Institution of Professional Engineers New Zealand
• Master Builders Australia
• New Zealand Heavy Engineering Research Association
• Steel Reinforcement Institute of Australia
• University of Newcastle
• University of Auckland (New Zealand)
• University of Canterbury (New Zealand)
• University of Melbourne

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Detailed information about joint Australian/New Zealand Standards can be found by visiting the Standards Australia web site at www.standards.com.au or Standards New Zealand web site at www.standards.co.nz and looking up the relevant Standard in the on-line catalogue.

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We also welcome suggestions for improvement in our Standards, and especially encourage readers to notify us immediately of any apparent inaccuracies or ambiguities. Please address your comments to the Chief Executive of either Standards Australia International or Standards New Zealand at the address shown on the back cover.

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AS/NZS 1170.1 Supplement 1:2002

Structural design actions—Permanent, imposed and other actions—Commentary (Supplement to AS/NZS 1170.1:2002)

Originated in Australia as part of AS 1170.1—1989.

Originated in New Zealand as part of NZS 4203:1976.

Previous New Zealand edition NZS 4203:1992.

AS 1170.1—1989 and NZS 4203:1992 jointly revised, amalgamated and redesignated in part as AS/NZS 1170.1 Supplement 1:2002.

COPYRIGHT

© Standards Australia/Standards New Zealand

All rights are reserved. No part of this work may be reproduced or copied in any form or by any means, electronic or mechanical, including photocopying, without the written permission of the publisher.

Jointly published by Standards Australia International Ltd, GPO Box 5420, Sydney, NSW 2001 and Standards New Zealand, Private Bag 2439, Wellington 6020

ISBN 0 7337 4472 9

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PREFACE

This Commentary was prepared by the Joint Standards Australia/Standards New Zealand Committee BD-006, General Design Requirements and Loading on Structures, as a Supplement to AS/NZS 1170.1, Structural design actions, Part 1: Permanent, imposed and other actions. This Commentary supersedes in part AS 1170.1—1989, Minimum design loads on structures, Part 1: Dead and live loads and load combinations and in part NZS 4203:1992, Code of practice for general structural design and design loadings for buildings (Vol. 2).

The Commentary provides background material and guidance to the requirements of the Standard.

The clause numbers of this Commentary are prefixed by the letter ‘C’ to distinguish them from references to the Standard clauses to which they directly relate. Where a commentary to certain Clauses is non-existent, it is because no explanation of the Clause is necessary.

ACKNOWLEDGEMENT

Standards Australia wishes to acknowledge and thank the following member who has contributed significantly to this Commentary:

Peter Kleeman

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CONTENTS

5

STANDARDS AUSTRALIA/STANDARDS NEW ZEALAND

Australian/New Zealand Standard

Structural design actions—Permanent, imposed and other actions—Commentary

(Supplement to AS/NZS 1170.1:2002)

SECTION C1 SCOPE AND GENERAL

C1.1 SCOPE

This Commentary is intended to be read in conjunction with AS/NZS 1170.1:2002. The commentary includes explanations of the provisions and in some cases suggests approaches that may satisfy the intent of the Standard. Commentary Clauses are not mandatory. Lists of references are also given for further reading.

Construction actions are now specifically covered in AS/NZS 1170.0. Some comment on construction activity is given under Clause C3.1.

C1.2 APPLICATION

C1.3 DETERMINATION OF DESIGN ACTIONS

This Clause reflects the philosophy outlined in AS/NZS 1170.0 that design should be verified using appropriate loads.

C1.4 REFERENCED DOCUMENTS

The following documents are referred to in this Commentary:

6