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AS/NZS 4063.2:2010
[Pending Revision]Characterization of structural timber, Part 2: Determination of characteristic values
Provides requirements for the sampling, statistical evaluation of test data and the determination of design characteristic values for structural timber for structural design in accordance with the relevant Australian or New Zealand timber engineering design Standard.
Published: 23/06/2010
Pages: 44
Table of contents
Cited references
Content history
Table of contents
Header
About this publication
Preface
1 Scope and general
1.1 Scope
1.2 Application
1.3 Normative references
1.4 Definitions
1.5 Notation
1.5.1 General
1.5.2 Subscripts
2 Reference population, sampling and selection of test pieces
2.1 General
2.2 Reference population
2.3 Sampling
2.3.1 General
2.3.2 Sample selection
2.3.3 Sample size
2.4 Selection of test pieces
3 Evaluation of characteristic values from sample test data
3.1 General
3.2 Characteristic values
3.3 Statistical evaluation methods
3.3.1 Evaluation of characteristic values
3.3.2 Calculation of coefficient of variation
3.3.3 Evaluation based on pooled data
3.4 Non-standard test conditions and configurations
4 Determination of design characteristic values or stress grade for structural timber
4.1 General
4.2 Determination of design characteristic values
4.2.1 General
4.2.2 Modification factor to provide a margin to allow for variations in manufacture and resource
4.2.3 Modification factor for variability
4.3 Assignment of stress grade
5 Report
Appendix A
A1 General
A2 Random location
Appendix B
B1 General
B2 Characteristic value for strength properties
B2.1 General
B2.2 Statistical evaluation, method 1
B2.2.1 General
B2.2.2 Test data
B2.2.3 Characteristic value of a strength property
B2.2.4 Sampling factor (ks) and 5th percentile strength (f05)
B2.3 Statistical evaluation, method 2
B2.3.1 General
B2.3.2 Test data
B2.3.3 Characteristic value of a strength property
B2.3.4 Sampling factor (ks) and 5th percentile strength (f05)
B2.4 Statistical evaluation, method 3 (non-parametric)
B2.4.1 General
B2.4.2 Test data
B2.4.3 Characteristic value of a strength property
B2.4.4 Sampling factor (ks) and 5th percentile strength (f05)
B2.5 Statistical evaluation, method 4 (non-parametric)
B2.5.1 General
B2.5.2 Characteristic value of a strength property
B3 Characteristic values for modulus of elasticity
B3.1 General
B3.2 Test data
B3.3 Characteristic values
B3.4 Sampling factor (ks) mean modulus of elasticity (E¯) and 5th percentile modulus of elasticity (E05)
B4 Characteristic value for modulus of rigidity
B4.1 General
B4.2 Test data
B4.3 Characteristic value
B4.4 Sampling factor ks, mean modulus of rigidity (G¯)
B5 Characteristic value for modulus of elasticity perpendicular to grain
B6 Characteristic value for density
B6.1 General
B6.2 Test data
B6.3 Characteristic value of a strength property
B6.4 Sampling factor (ks) and density (ρ¯)
Appendix C
C1 General
C2 Characteristic value for strength
C2.1 General
C2.2 Typical strength test data
C2.3 Percentiles (pi) for the empirical cumulative frequency distribution
C2.4 Point estimate of 5th percentile
C2.5 Example 1—Statistical evaluation method 1, Appendix B
C2.5.1 Data and parameters
C2.5.2 Procedure
C2.6 Example 2—Statistical evaluation method 2, Appendix B
C2.6.1 Data and parameters
C2.6.2 Procedure
C2.7 Example 3—Statistical method 3, Appendix B
C2.7.1 General
C2.7.2 Point estimate for the 5th percentile strength, f05
C2.7.3 Sampling factor (ks)
C2.7.4 Procedure
C2.7.5 Characteristic value for strength
C2.8 Example 4—Statistical evaluation method 4, Appendix B
C3 Characteristic value of modulus of elasticity
C3.1 Data and parameters
C3.2 Procedure
Appendix D
D1 General
D2 Pooling test data
D3 Procedure
D4 Example
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