桥梁设计 第5部分：混凝土

Australian Standard^TM

Bridge design

Part 5: Concrete

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This Australian Standard was prepared by Committee BD-090, Bridge Design. It was approved on behalf of the Council of Standards Australia on 9 December 2003 and published on 23 April 2004.

The following are represented on Committee BD-090:

Australasian Railway Association

Austroads

Bureau of Steel Manufacturers of Australia

Cement and Concrete Association of Australia

Institution of Engineers Australia

Queensland University of Technology

Steel Reinforcement Institute of Australia

The Association of Consulting Engineers Australia

University of Western Sydney

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This Standard was issued in draft form for comment as DR 00378.

Australian Standard^TM

Bridge design

Part 5: Concrete

Originated as HB 77.5—1996.

Revised and redesignated as AS 5100.5—2004.

COPYRIGHT

© Standards Australia International

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.

Published by Standards Australia International Ltd
GPO Box 5420, Sydney, NSW 2001, Australia

ISBN 0 7337 5706 5

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PREFACE

This Standard was prepared by the Standards Australia Committee BD-090, Bridge Design, to supersede HB 77.5—1996, Australian Bridge Design Code, Section 5: Concrete.

The AS 5100 series represents a revision of the 1996 HB 77 series, Australian Bridge Design Code, which contained a separate Railway Supplement to Sections 1 to 5, together with Section 6, Steel and composite construction, and Section 7, Rating. AS 5100 takes the requirements of the Railway Supplement and incorporates them into Parts 1 to 5 of the present series, to form integrated documents covering requirements for both road and rail bridges. In addition, technical material has been updated.

This Standard is also designated as AUSTRoads publication AP-G15.5/04.

The objectives of AS 5100 are to provide nationally acceptable requirements for—

(a) the design of road, rail, pedestrian and bicycle-path bridges;

(b) the specific application of concrete, steel and composite construction, which embody principles that may be applied to other materials in association with relevant Standards; and

(c) the assessment of the load capacity of existing bridges.

These requirements are based on the principles of structural mechanics and knowledge of material properties, for both the conceptual and detailed design, to achieve acceptable probabilities that the bridge or associated structure being designed will not become unfit for use during its design life.

Whereas earlier editions of the Australian Bridge Design Code were essentially administered by the infrastructure owners and applied to their own inventory, an increasing number of bridges are being built under the design-construct-operate principle and being handed over to the relevant statutory authority after several years of operation. This Standard includes clauses intended to facilitate the specification to the designer of the functional requirements of the owner to ensure the long-term performance and serviceability of the bridge and associated structure.

Significant differences between this Standard and HB 77.5 are the following:

(i) Grade 500 MPa reinforcement Introduction of 500 MPa reinforcing steel conforming to AS/NZS 4671, Steel reinforcing materials.

(ii) Crack control requirements Crack control requirements similar to those for AS 3600, Concrete, have been introduced. In addition, for exposed sites, crack control requirements for dead load and self weight only have been included.

In line with Standards Australia policy, the words ‘shall’ and ‘may’ are used consistently throughout this Standard to indicate respectively, a mandatory provision and an acceptable or permissible alternative.

Statements expressed in mandatory terms in Notes to tables are deemed to be requirements of this Standard.

The terms ‘normative’ and ‘informative’ have been used in this Standard to define the application of the appendix to which they apply. A ‘normative’ appendix is an integral part of a Standard, whereas an ‘informative’ appendix is only for information and guidance.

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CONTENTS

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