AS 1720.4-2006 Timber structures, Part 4: Fire resistance for structural adequacy of timber members
Standards Australia
Supersedes: AS 1720.4-1990 Timber structures, Part 4: Fire-resistance of structural timber members
Draft Designation: DR 04534The objective of this Standard is to provide a computational method for determining the fire resistance for structural adequacy of solid, plywood, laminated veneer lumber (LVL), and glued-laminated structural timber members as an alternative to the test method specified in AS 1530.4.
This revision extends the scope to cover the fire resistance level (FRL) for plywood and laminated veneer lumber (LVL) and clarifies that the FRL specified in this Standard is for the purpose of structural adequacy only.
This Standard forms Part 4 of the AS 1720 series, as follows:
AS
1720 Timber structures
1720.1 Part 1: Design methods
1720.2 Part 2: Timber properties
1720.4 Part 4: Fire resistance for structural adequacy of timber members (this Standard)
The term ‘informative’ has been used in this Standard to define the application of the appendix to which it applies. An ‘informative’ appendix is only for information and guidance.
Originated as AS 1720.4-1990. Second edition 2006.
This Standard provides a computational method for determining the fire resistance for structural adequacy of solid, plywood, laminated veneer lumber (LVL), and glued-laminated structural timber members as an alternative to the test specified in AS 1530.4.
This Standard also provides methods for protecting metal connectors from the effects of fire.
NOTES:
1: This Standard is not relevant to the determination of the early fire hazard properties of materials for which a method of assessment is given in AS/NZS 1530.3.
2: This Standard is not relevant to structural accreditation through furnace testing for which the appropriate Standard is AS 1530.4.
Contents:
Section 1: Scope And General
Section 2: Design Method 2.1 General
Section 3: Assessment Of Joints With Metal Connectors
Appendix A: List Of Informative And Related Documents
Timber Structures.
A3P; Association of Consulting Engineers Australia; Australian Building Codes Board; Australian Timber Importers’ Federation; Australian Wood Panels Association; Building Research Association of New Zealand; CSIRO Manufacturing and Infrastructure Technology; Curtin University of Technology; Engineers Australia; Master Builders Australia; Monash University; New Zealand Forest Industries Council; New Zealand Timber Industry Federation; Plywood Association of Australasia; Scion; Timber Queensland; University of Canterbury New Zealand; University of Technology, Sydney.
