Code of practice for structural use of timber - Part 5: timber joints
(First revision)
This part of Malaysian Standard applies to joints in solid timbers fabricated with mechanical fasteners. These include joints fabricated with the following fasteners:
a) nails;
b) wood screws;
c) bolts;
d) coach screws;
e) split-ring connectors;
f) shear-plate connectors; and
g) steel dowels.
For mechanical fasteners used in connections for engineered timber components (e.g. glue laminated timber or glulam, laminated veneer lumber (LVL), etc.), guidance is recommended to be obtained from their manufacturers on whether the joint design values based on solid timber are applicable for their products.
NOTES:
1. Design rules for specialised and patented mechanical fasteners and for variants of conventional fasteners are not included in this standard.
2. This standard does not specifically cover glued timber-to-timber or timber-to-plywood connections as occurred in fabricated components such as stressed skin panels or plywood webbed beams. In such cases, joint design can be based on the timber components in the connection, provided that the joints are fabricated using a rigid, durable adhesive. Phenolic type adhesives meet these requirements. The design of fabricated components comprising glued connections is therefore based on the fact that with correct bonding practice and quality control, a joint is developed in which the adhesive bond strength and durability will be superior to the components comprising the joints. Reference may be made to Appendix C3 of AS 1720.1:2010, for information on methods for assessing the deformation of joints.
