AS/NZS 4063:1992

1 - AS/NZS 4063:1992 TIMBER - STRESS-GRADED - IN-GRADE STRENGTH AND STIFFNESS EVALUATION
4 - PREFACE
4 - CONTENTS
5 - 1 SCOPE
5 - 2 APPLICATION
5 - 3 REFERENCED DOCUMENTS
5 - 4 DEFINITIONS
5 - 4.1 Characteristic value
5 - 4.2 F-grade
6 - 4.3 Normalized characteristic strength
6 - 4.4 Piece
6 - 4.5 Reference population
6 - 4.6 Standard test configuration
6 - 4.7 Strength
6 - 4.8 Stress-grade
6 - 4.9 Test sample
6 - 4.10 Test specimen
6 - 5 NOTATION
7 - 6 REFERENCE POPULATION
7 - 6.1 Population determination
7 - 6.2 Specific reference
7 - 6.3 Evaluation
7 - 7 SAMPLING
7 - 7.1 General
7 - 7.2 Sample size
7 - 7.3 Test specimens
7 - 8 TEST CONDITIONS
7 - 8.1 Standard test conditions
8 - 8.2 Non-standard test conditions
9 - 9 EVALUATION EQUATIONS
9 - 9.1 Evaluation equations for limit state codes
10 - 9.2 Evaluation equations for working stress codes
11 - 10 STRESS GRADE
11 - 11 ASSESSMENT REPORT
12 - APPENDIX A - RANDOM SELECTION OF SPECIMEN LOCATION
12 - A1 SCOPE
12 - A2 RANDOM LOCATION
14 - APPENDIX B - MODIFICATION FACTORS FOR NON-STANDARD CONDITIONS
14 - B1 SCOPE
14 - B2 GENERAL
14 - B3 TEST SPECIMEN LENGTH
14 - B3.1 Effect on the characteristic value of strength
14 - B3.2 Effect on modulus of elasticity
14 - B4 GRADED LENGTH
14 - B5 DEFECT LOCATION
15 - B6 TEMPERATURE
16 - APPENDIX C - BASIC WORKING STRESS IN BENDING - WORKED EXAMPLE
16 - C1 SCOPE
16 - C2 PRELIMINARY DATA
16 - C3 DERIVATION

Describes procedures for evaluating the structural properties of graded timber and for verifying the accuracy of specific grading techniques. Requirements for resolving doubts concerning the specified design properties of particular populations of graded timber are specified.

This Standard sets out procedures for evaluating structural properties of graded timber and for verifying the accuracy of specific grading techniques. This Standard also specifies requirements for resolving doubts concerning the specified design properties of particular populations of graded timber.It is suitable for application to both permissible stress and limit states design codes. Method for random selection of specimen location is provided in Appendix A.Methods for using data obtained from non-standard evaluation procedures are described in Appendix B.NOTES:1 This Standard may also be applied to structural timber products other than solid timber. However in such cases, the long duration strength factor of 1.75 used in Equation 9.2(1) should be amended to reflect the appropriate duration factor for that structural product.2 A worked example for determining basic working stress in bending is provided in Appendix C.

First published as Joint Standard AS/NZS 4063:1992.