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Australia Standard AS AS 3850.2:2015 Prefabricated concrete elements Part 2: Building construction

25 Dec, 2019 POST BY ADMIN Industry News VIEW (71)

AS3850.22015V2



PREFACE


This Standard was prepared by the Standards Australia Committee BD-066, Tilt-up

Construction, to supersede AS 3850—2003, Tilt-up concrete construction.

This Standard is part of a series, which comprises the following parts:

AS 

3850 Prefabricated concrete elements

3850.1 Part 1: General requirements

3850.2 Part 2: Building construction (this Standard)

The objective of this part of the Standard is to provide requirements for planning,

construction, design, casting, transportation, erection and incorporation into the final

structure of prefabricated concrete elements in building construction.


In this Standard where the word ‘shall’ is used, a mandatory requirement is implied; where

the word ‘should’ is used, a recommendation is implied.


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


The term ‘normative’ has been used in this Standard to define the application of the 

appendix to which it applies. A ‘normative’ appendix is an integral part of a Standard.


This document includes commentary on some of the clauses, tables and figures of the Standard. The commentary directly follows the relevant clause, table or figure, is designated by ‘C’ preceding the clause number and is printed in italics in a box. The commentary is for information and guidance and does not form part of the Standard.


CONTENTS

Page

SECTION 1 SCOPE AND GENERAL

1.1 SCOPE .................................................................................................................... ..... 5

1.2 NORMATIVE REFERENCES .................................................................................... 5

SECTION 2 DESIGN AND DOCUMENTATION

2.1 GENERAL .................................................................................................................. . 6

2.2 DESIGN STAGES ....................................................................................................... 6

2.3 ERECTION DESIGN .................................................................................................. 6

2.4 BUILDING STABILITY DURING ERECTION AND CONSTRUCTION ................ 7

2.5 DESIGN FOR MANUFACTURE, HANDLING AND ERECTION ............................ 8

2.6 JOINT WIDTHS ........................................................................................................ 33

2.7 FOOTINGS................................................................................................................ 34

2.8 CONNECTIONS ....................................................................................................... 35

2.9 STRONGBACKS ...................................................................................................... 37

2.10 DOCUMENTATION ................................................................................................. 38

2.11 TOLERANCES.......................................................................................................... 39

SECTION 3 CASTING

3.1 GENERAL ................................................................................................................. 44

3.2 LAYOUT ................................................................................................................... 44

3.3 CASTING BED ......................................................................................................... 44

3.4 SURFACE FINISH AND FORMWORK ................................................................... 44

3.5 CURING AND RELEASE AGENTS ........................................................................ 44

3.6 LIFTING, BRACE AND FIXING INSERTS ............................................................ 45

3.7 WELDING ................................................................................................................. 45

3.8 IDENTIFICATION AND ORIENTATION ............................................................... 45

3.9 INSPECTION ............................................................................................................ 45

3.10 COMPACTION OF CONCRETE .............................................................................. 46

3.11 ELEMENT RELEASE (LIFT-OFF FROM CASTING BED) .................................... 46

SECTION 4 TRANSPORT, CRANAGE AND ERECTION

4.1 TRANSPORT ............................................................................................................ 47

4.2 STORAGE AND MULTIPLE HANDLING .............................................................. 49

4.3 CRANES AND RIGGING ......................................................................................... 49

4.4 ERECTION................................................................................................................ 5 1

4.5 DAMAGE AND REPAIR .......................................................................................... 56

SECTION 5 TEMPORARY SUPPORTS

5.1 INSTALLATION AND INSPECTION OF TEMPORARY BRACING AND

PROPPING ................................................................................................................ 57

5.2 SUPERIMPOSED LOADS ........................................................................................ 57

5.3 LEVELLING PADS AND SHIMS ............................................................................ 57

5.4 GROUTING OF THE BASE ..................................................................................... 58

SECTION 6 INCORPORATION INTO FINAL STRUCTURE

6.1 FIXING TO FINAL STRUCTURE ........................................................................... 59

6.2 INSPECTION AND REMOVAL OF TEMPORARY SUPPORTS ............................ 59

APPENDIX A INFORMATION REQUIRED ON DRAWINGS ........................................... 60

BIBLIOGRAPHY .................................................................................................................. ... 63



STANDARDS AUSTRALIA

Australian Standard

Prefabricated concrete elements

Part 2: Building construction

S E C T I O N 1 S C O P E A N D G E N E R A L

1.1 SCOPE

This Standard provides requirements for planning, construction, design, casting,

transportation, erection and incorporation into the final structure of prefabricated concrete

elements in building construction. It applies to prefabricated concrete elements including,

but not limited to, wall elements, columns, beams, flooring and facade elements used in

building construction.

This Standard does not cover the following elements:

(a) Concrete pipes, bridge beams or culverts (e.g. concrete pipes or culverts used in civil

construction works to channel water under roads, railways or embankments).

(b) Small individual concrete elements that can be handled manually (e.g. bricks, blocks

and pavers).

NOTE: The elements mentioned in Items (a) and (b) are covered by other Australian Standards.

1.2 NORMATIVE REFERENCES

The following are the normative documents referenced in this Standard:

NOTE: Documents referenced for informative purposes are listed in the Bibliography.

AS

2550 Cranes, hoists and winches—Safe use (series)

3610 Formwork for concrete

3610.1 Part 1: Documentation and surface finish

3850 Prefabricated concrete elements

3850.1 Part 1: General requirements

4100 Steel structures

AS/NZS

1100 Technical drawing

1100.501 Part 501: Structural engineering drawing

1170 Structural design actions

1170.0 Part 0: General principles

1170.2:2011 Part 2: Wind actions

1554 Structural steel welding

1554.3 Part 3: Welding of reinforcing steel


Please see the attachment for more information.