Timber joint design

Bolts, coach screws and timber connectors (split-rings and shear-plates) all have higher capacities than nails and screws, making them better suited to applications where a large load is imposed and there is limited space for fasteners.

Commonly, these are used in conjunction with proprietary and custom designed metal connectors but they are also used in direct load transfer from one piece of timber to another where they provide a basis for the design of elegant and economic connections.

Typical applications include beam to column, beam to beam, truss, pole frame, marine structure and bridge connections as well as column, beam and truss supports. It is often possible, through good design to provide a connection with a high level of architectural appeal.

On the other hand, these fasteners can also be used in situations where the requirements are purely of an engineering nature in which strength, compactness, economy and durability are the only qualities sought. Examples include hidden joints and joints in buildings where aesthetic qualities are usually unimportant such as farm buildings, some industrial and commercial buildings, bridges and marine structures.

 

The following resources are available for download at the bottom of the page:

  • Timber Joint Design 3 - Bolts, Coach Screws and Timber Connectors - timber datafile on joint design.
  • Timber service life design guide - this guide addresses in detail, specific hazards with respect to the service life of timber construction subject to hazards including in-ground decay, above-ground decay,weathering, termites, corrosion and marine borers.
  • Building with timber in bushfire-prone areas - this guide has been written to help architects, designers, builders and owners to understand the Standard and what is required for each of the new Bushfire Attack Level (BAL) areas. It focuses on traditional building methods using timber.
  • Timber-framed Construction for Townhouse Buildings Class 1a - this guide demonstrates compliance with targeted fire safety and sound insulation performance requirements in the BCA for Class 1a attached buildings and associated Class 10a buildings.
  • Timber-framed Construction for Multi-residential Buildings Class 2, 3 & 9c - this guide demonstrates achievement of targeted fire and sound performance requirements in the BCA for Class 2, 3 and 9c buildings. 
  • Timber-framed Construction for Commercial Buildings Class 5, 6, 9a & 9b - this guide demonstrates achievement of targeted fire performance requirements in the BCA for Class 5, 6, 9a and 9b buildings. It focuses specifically on fire-resisting construction of wall, floor and ceiling elements. In this context, the Guide provides certified construction details that utilise the BCA's Deemed to Satisfy Provisions. This Guide does not deal with other aspects of BCA fire safety performance, refer to Appendix B of this document for further details. 

 

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