小型建筑中的砌体 第1部分：小型建筑中砌体的简化设计

COMMITTEE BD-004

DR 06422 CP

(Project ID: 7375)

Combined Postal Ballot/Draft for Public Comment Australian Standard

LIABLE TO ALTERATION—DO NOT USE AS A STANDARD

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BEGINNING DATE FOR COMMENT:	10 July 2006
CLOSING DATE FOR COMMENT:	21 August 2006

Masonry in small buildings

Part 1: Simplified design of masonry in small buildings (Revision of AS 3700 (in part))

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Draft for Public Comment
Australian Standard

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Draft for Public Comment

STANDARDS AUSTRALIA

Committee BD-004—Masonry Structures

DRAFT

Australian Standard

Masonry in small buildings

Part 1: Simplified design of masonry in small buildings

(Revision of AS 3700 (in part))

(To be AS 4773.1—200X)

Please note that this document is currently being balloted by the committee and the results of the postal ballot will be contingent on public comment received.

This draft was prepared by Standards Australia Committee BD-004, Masonry Structures.

Comment on the draft is invited from people and organizations concerned with this subject. It would be appreciated if those submitting comment would follow the guidelines given on the inside front cover.

This document is a draft Australian Standard only and is liable to alteration in the light of comment received. It is not to be regarded as an Australian Standard until finally issued as such by Standards Australia.

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PREFACE

This Standard was prepared by the Standards Australia Committee BD-004, Masonry Structures, to supersede, in part, AS 3700—2001, Masonry structures.

The objective of this Standard is to provide minimum requirements for the design of unreinforced and reinforced masonry, including built-in components, for use in small buildings. This Standard is intended for the use of designers and specifiers of small buildings and is intended as a companion document to AS 4773 Part 2, Construction practices for masonry in small buildings.

This Standard will be referenced in the Building Code of Australia by way of BCA Amendment XX to be published on 20XX.

The Committee acknowledges valuable assistance given by organizations and individuals experienced in various aspects of design and construction of masonry.

Statements expressed in mandatory terms in notes to tables and figures 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

Page

SECTION 1 SCOPE AND GENERAL

1.1 SCOPE ... 5

1.2 GENERAL LIMITATIONS ... 5

1.3 REFERENCED DOCUMENTS ... 8

1.4 INFORMATION TO BE PROVIDED ON DOCUMENTS ... 8

1.5 DEFINITIONS ... 9

SECTION 2 DESIGN CRITERIA

2.1 SCOPE OF SECTION ... 13

2.2 AIM ... 13

2.3 PERFORMANCE REQUIREMENTS ... 13

2.4 DESIGN REQUIREMENTS ... 13

2.5 SERVICEABILITY, STRENGTH AND STABILITY ... 14

2.6 OTHER DESIGN REQUIREMENTS ... 15

SECTION 3 MATERIALS

3.1 SCOPE OF SECTION ... 17

3.2 MASONRY UNITS ... 17

3.3 MORTAR AND GROUT ... 17

3.4 BUILT IN COMPONENTS ... 18

3.5 REINFORCEMENT ... 18

SECTION 4 DURABILITY

4.1 SCOPE OF SECTION ... 19

4.2 MATERIAL SELECTION ... 19

4.3 ELEMENT LOCATIONS ... 19

4.4 EXPOSURE ENVIRONMENTS ... 19

SECTION 5 FIRE RESISTANCE

5.1 SCOPE OF SECTION ... 22

5.2 GENERAL CRITERIA ... 22

5.3 DESIGN PERFORMANCE CRITERIA ... 22

SECTION 6 WALL DESIGN

6.1 SCOPE OF SECTION ... 24

6.2 GENERAL CRITERIA ... 24

6.3 VERTICAL SUPPORTS ... 24

6.4 HORIZONTAL SUPPORTS ... 24

6.5 LOAD WIDTH ... 25

6.6 DESIGN FOR UPLIFT ... 25

6.7 PIERS ... 29

6.8 MULLIONS ... 32

SECTION 7 MASONRY VENEER WALLS

7.1 SCOPE OF SECTION ... 38

7.2 GENERAL CRITERIA ... 38

7.3 WALL TIES ... 38

SECTION 8 CAVITY MASONRY WALLS

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