桥梁设计 第1部分：范围和一般原则

Australian Standard™

Bridge design

Part 1: Scope and general principles

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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 4 November 2003 and published on 23 April 2004.

The following are represented on Committee BD-090:

• Association of Consulting Engineers Australia
• 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
• University of Western Sydney

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This Standard was issued in draft form for comment as DR 00374.

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Australian Standard^TM

Bridge design

Part 1: Scope and general principles

Originated as HB 77.1—1996.

Revised and redesignated as AS 5100.1—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 5627 1

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PREFACE

This Standard was prepared by the Standards Australia Committee BD-090, Bridge Design to supersede HB 77.1—1996, Australian Bridge Design Code, Section 1: General.

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 Sections 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-G15.1/04.

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 steel/concrete 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 77.1 are the following:

(i) Bridge barriers The clauses for both the performance level definition and selection and design of road bridge barriers have been completely replaced. To assist in the determination of barrier performance levels, a procedure, based on recently developed AASHTO documentation, has been provided. This procedure has been suitably modified to reflect local Australian conditions. With the increasing concerns about objects being thrown from bridge walkways and pedestrian bridges, clauses have been included for the design of appropriate restriction barriers.

(ii) Environmental considerations Environmental issues that could have an impact on bridge concepts, details of which have been included to ensure their consideration in the design process.

(iii) Resolution of functional requirements Matters for resolution by the relevant authority or owner before commencing the design process are listed in Appendix A.

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.

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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 the Standard, whereas an ‘informative’ appendix is only for information and guidance.

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