Introduction to timber engineering design

This module is a teaching aid for tutors delivering courses on the use and design of timber in engineering and architecture. There are also related materials such as case studies and information sheets referenced alongside each module, which will assist both students and lecturers.

The Introduction to timber engineering design module builds on aspects of the related module on Timber as a material, and it also includes design examples. The importance of in-service environmental conditions when designing in timber is emphasised.

The fundamentals of Eurocode are outlined in the context of designing timber structures, in particular the principles of limit state design. The use of characteristic values versus design material properties are considered in the context of timber.

Finally, concise guides to connections and fixings are included, again with reference to Eurocode 5 and other standards where appropriate.

This module is designed to support engineering and architecture lecturers.

Units

Each of the following units can be downloaded separately, in line with teaching requirements and course progression.

Characteristic vs. design material properties

This unit covers the following topics:

The characteristic material properties of timber
The parameters required to convert these to design properties

It will also be helpful to refer to the module on Timber as a material in this series.

Level
Introduction | Intermediate | Advanced
Relevance
10%
90%

Structural detailing requirements

This unit covers the following topics:
Recommendations for the preparation, fabrication, storage and handling of timber materials and components
Best practice and product standards

Level
Introduction | Intermediate | Advanced
Relevance
10%
90%

Moisture and humidity

This unit covers the following topics:

Wood and moisture content
Service classes
Guidance on calculating with service classes (BS 5268 and Eurocode 5)

It will also be helpful to refer to the module Timber as a material in this series.

Level
Introduction | Intermediate | Advanced
Relevance
10%
90%

The Eurocode system

This unit covers the following topics:

Origin and purpose of Eurocodes
List of published Eurocodes
Principles and application rules
National Annexes
Eurocode design basis

Level
Introduction | Intermediate | Advanced
Relevance
10%
90%

Bolted and dowelled connections

This unit covers the following topics:

Connections made of bolts and dowels
The sizes and the limitations of such connections

For additional information please refer to related units on connections in this module.

Level
Introduction | Intermediate | Advanced
Relevance
10%
90%

Nailed connections

This unit covers the following topics:

Sizes and other limitations
Withdrawal resistance
Head-pull through resistance

Refer also to related units concerning connections in this module: Screw connections and coach screws, Bolted and dowelled connections, Multiple fastener joints, Mechanical timber joints.

Level
Introduction | Intermediate | Advanced
Relevance
10%
90%

Design life, design situations and load duration classes

This unit covers the following topics:

The concept of a design life of a structure
The concept of load duration

The units on Limit states design and on Strength grading and strength classes in this module, and the separate module on Timber as a material, are also relevant to this topic.

Level
Introduction | Intermediate | Advanced
Relevance
10%
90%

Limit state design

This unit covers the following topics:

Limit states as used in the design of structures to Eurocode
Partial safety factors
Expressions for design values of actions.
It is supplemented by includes 4 worked examples on Design for flexure, Design for tension, Bearing and compression perpendicular to grain, Design for Shear and torsion.
The module on Timber as a material in this series is also relevant to this unit.

Level
Introduction | Intermediate | Advanced
Relevance
10%
90%

Multiple fastener joints

This unit covers the following topics:

How a multiple fastener joint is formed
Why the sum of capacities of individual fasteners may not be equal to the actual capacity exhibited by the multiple fastener joints

Please also refer to the related units on connections in this module.

Level
Introduction | Intermediate | Advanced
Relevance
10%
90%

Screw connections

Screw connections covers the following topics:
Sizes
Limitations
Calculation methods

Level
Introduction | Intermediate | Advanced
Relevance
10%
90%

Wood Information Sheets
Case studies
Eurocode software
Wood species database
Archive
TRADA books online


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