Sustainable sources of the wood used in timber frames

Article Abstract:

Timber material for construction will continue to be produced in sustained forests, or perhaps even increased forests. Timber-frame construction is most energy efficient in low-rise construction. Most framing material comes from softwood forests in Canada. Most Canadian stress-graded timber is grown in sustainable forests in W Canada. In Canada, around 250,000 seedlings are planted per year, and logged areas must be regenerated by law within 10 years. The stock of structural timber in Finland and Sweden has doubled in the last 100 years, as the idea of sustainable forests is well established there.

Laws, regulations and rules, Environmental aspects, Timber, Sustainable forestry

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Fire safety design; fire engineering provides important new options

Article Abstract:

Fire saftey engineering can be used to examine new and alternative methods of achieving fire saftey in buildings. The 1985 Building Regulations encourage the discipline by adopting a functional approach to fire safety based on the prime need to save lives. Fire saftey engineers have a large body of research on building components and behaviour of smoke to draw upon and can create safe buildings where fire protection does not damage design. This applies to large and small buildings and involves a combination of active and passive protection measures.

Buildings, Structural engineering

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Steel frames don't need automatic protection

Article Abstract:

Assumptions about the need to protect structural steelwork from fire have been reassessed in the light of recent research. This has led to a change in attitude to fire protection and new codes are based on the principle of designing for fire resistance rather than protecting the building after it has been designed. Fire resistance of steel members can be calculated, and a limit state for fire can be incorporated into design work. This opens up design opportunities and can lead to reduced costs of fire protection.

Steel, Structural, Structural steel

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