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AS 3850.1:2024
[Current]Prefabricated concrete elements, Part 1: General requirements
AS 3850.1:2024 provides requirements for the materials, components and equipment used in the manufacture of prefabricated concrete elements
Published: 28/06/2024
Pages: 84
Table of contents
Cited references
Content history
Table of contents
Header
About this publication
Preface
1 Scope and general
1.1 Scope
1.2 Normative references
1.3 Terms and definitions
1.4 Symbols
2 Materials, components and equipment
2.1 General
2.2 Working load limit (WLL) calculation
2.3 Concrete and reinforcement
2.4 Curing compounds and release agents
2.5 Lifting, brace and fixing inserts
2.5.1 General
2.5.2 Lifting inserts
2.5.2.1 General
2.5.2.2 Additional requirements for tension testing of lifting systems that require component; reinforcement
2.5.2.3 Marking of lifting inserts
2.5.2.4 Additional requirements for flexible wire rope loop lifting inserts
2.5.3 Post-installed brace inserts
2.5.4 Cast-in fixing and brace inserts (ferrules)
2.6 Lifting clutches
2.7 Braces
2.7.1 General
2.7.2 Marking of braces
2.7.3 Inspection and maintenance of braces
2.8 Levelling pads, shims and bearings
2.8.1 Temporary supports: Levelling Pads and Shims
2.8.1.1 Physical requirements of shims and levelling pads
2.8.1.2 Levelling pad removal
2.8.2 Permanent supports and bearings
2.9 Crane and rigging equipment
2.10 Documentation
Appendix A
A.1 Scope
A.2 Concrete testing
A.3 Testing of components and systems
A.3.1 General
A.3.2 Record tests
A.3.3 Test reports
A.4 Statistical evaluation of test results
A.5 Production validation
A.5.1 General
A.5.2 Principle
A.5.3 Statistical sampling
A.5.4 Acceptance criteria and evaluation
A.5.4.1 Dimensions and material properties
A.5.4.2 Test load
A.6 Additional testing and materials of lifting inserts
A.6.1 General
A.6.2 Tension test of the manufactured insert
A.6.2.1 General
A.6.2.2 Where tension bars are required to reach the specified WLL for the lifting insert
A.6.2.3 Apparatus for tension testing of the manufactured insert
A.6.2.4 Procedure
A.7 Additional testing for pull-out capacity of cast-in lifting and brace inserts
A.7.1 Introduction and scope
A.7.2 Shape modification factors
A.7.3 Test parameters and material properties
A.7.3.1 Concrete properties
A.7.3.2 Size of concrete specimens
A.7.3.3 Insert
A.7.3.4 Installation
A.7.4 Number of specimens for testing
A.7.4.1 General
A.7.4.2 Tension tests
A.7.4.3 Shear tests
A.7.5 Test procedure
A.7.5.1 Test set-up
A.7.5.2 Instrumentation
A.7.5.3 Application of load
A.7.6 Assessment
A.7.6.1 Integrity assessment
A.7.6.2 Determination of characteristic strength
A.7.6.3 Instrumentation
A.7.6.4 Characteristic shear strength
A.7.7 Evaluation
A.7.7.1 Characteristic values — Tension and shear
A.7.7.2 Shape modification factors
A.7.8 Test report
A.8 Testing of lifting clutches
A.8.1 General
A.8.2 Tension (axial) test of the lifting clutches
A.8.2.1 General
A.8.2.2 Apparatus for tension testing of the lifting clutch
A.9 Additional testing for post-installed brace inserts
A.9.1 General
A.9.2 Test parameters and material properties
A.9.2.1 Concrete properties
A.9.2.2 Size of specimens
A.9.2.3 Brace insert
A.9.2.4 Drilling equipment
A.9.2.5 Installation
A.9.3 Test specimens
A.9.3.1 General
A.9.3.2 Torque tests
A.9.3.3 Tension tests
A.9.3.4 Cyclic slip tension tests
A.9.3.5 Shear tests
A.9.4 Test procedure
A.9.4.1 Torque tests
A.9.4.2 Basic tension tests
A.9.4.2.1 General
A.9.4.2.2 Instrumentation
A.9.4.2.3 Application of load
A.9.4.3 Cyclic slip tension tests
A.9.4.4 Shear tests
A.9.4.4.1 General
A.9.4.4.2 Instrumentation
A.9.4.4.3 Application of load
A.9.5 Assessment
A.9.5.1 Integrity assessment
A.9.5.2 Torque assessment
A.9.5.3 Strength in tension obtained from basic tension tests
A.9.5.3.1 Mode of failure
A.9.5.3.2 Load/displacement behaviour
A.9.5.3.3 Characteristic tensile strength based on basic tension tests
A.9.5.4 Cyclic slip tension test assessment
A.9.5.5 Strength in shear
A.9.5.5.1 Mode of failure
A.9.5.5.2 Characteristic shear strength
A.9.6 Evaluation
A.9.6.1 Characteristic tensile strength of brace insert
A.9.6.1.1 General characteristic tensile strength
A.9.6.1.2 Characteristic tensile strength for concrete cone or pull-out failure mode
A.9.6.1.3 Characteristic tensile strength for steel failure
A.9.6.2 Characteristic shear strength of the bracing insert
A.9.6.2.1 General characteristic shear strength
A.9.6.2.2 Characteristic shear strength for concrete failure
A.9.6.2.3 Characteristic shear strength for steel failure
A.9.6.3 Combined tension and shear
A.9.7 Test report
A.10 Additional testing for braces
A.10.1 General
A.10.2 Procedure
A.11 Additional testing for levelling shims
A.11.1 General
A.11.2 Specimen
A.11.2.1 Conditioning
A.11.3 Procedure
A.11.4 Expression of results
Appendix B
B.1 General
B.1.1 Scope
B.2 Basis of design
B.3 Verification of ultimate limit state by analysis
B.3.1 General
B.3.2 Tension capacity
B.3.2.1 Required verification
B.3.2.2 Pull-out failure
B.3.2.2.1 General
B.3.2.2.2 State of the concrete
B.3.2.3 Concrete cone failure
B.3.2.3.1 General
B.3.2.3.2 Basic characteristic tensile resistance
B.3.2.3.3 Effect of insert edge distance
B.3.2.3.4 Disturbance to the distribution of stresses
B.3.2.3.5 Effect of a narrow element
B.3.2.4 Splitting failure
B.3.2.5 Blow-out failure
B.3.2.5.1 General
B.3.2.5.2 Characteristic resistance of a single insert
B.3.2.5.3 Effect of insert spacing and edge distance
B.3.2.5.4 Disturbance to the distribution of stresses
B.3.3 Shear load
B.3.3.1 Required verifications
B.3.3.2 Concrete edge failure
B.3.3.2.1 General
B.3.3.2.2 Characteristic shear resistance
B.3.3.2.3 Basic characteristic shear resistance
B.3.3.2.4 Effect of insert spacing, edge distance and element thickness
B.3.3.2.5 Disturbance to the distribution of stresses
B.3.3.2.6 Effect of the thickness of the structural component
B.3.3.2.7 Effect of reinforcement and state of the concrete
B.3.3.2.8 Effect of a narrow element
B.3.4 Combined tension and shear loading
Appendix C
C.1 Component design
C.2 Erection design
C.3 In-service design
C.4 Product specific design
C.5 Pre-casting inspection
C.6 Rigging
C.7 Storage Design
C.8 Supported element inspection
C.9 Temporary support inspection
C.10 Post-installed fixing installation
C.11 Transport inspection
Bibliography
Cited references in this standard
ETAG 001
Metal anchors for use in concrete
CEN/TS 1992-4-2:2009
Design of fastenings for use in concrete, Part 4-2: Headed fasteners
CEN/TR 15728:2016
Design And Use Of Inserts For Lifting And Handling Of Precast Concrete — Elements
ASTM D695
Standard Test Method for Compressive Properties of Rigid Plastics
ASTM D618
Standard Practice for Conditioning Plastics for Testing
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