Rethinking CTBUH's Height Criteria in the Context of Tall Timber

Robert Foster
Academic
The University of Queensland, Brisbane

Recent developments in the design and construction of progressively taller buildings using engineered timber as a structural material raise important questions about the language that is used to describe tall buildings. This presentation discussed the role of the CTBUH Height Criteria in classifying tall buildings, and the challenges raised by the emergence of engineered timber as a contemporary structural material alongside steel and concrete. The presentation floated a proposal for updating the existing terminology to accommodate the use of timber and other new materials in the design of tall buildings. The presentation also provided an update to Conference attendees about the outcome of the discussion at the Pre-Conference Workshop on Tall Timber, with a view toward the future revision of the CTBUH Criteria to include timber. Issues of local jurisdictional controls and practical limitations, especially around fire safety, were also discussed.

Accompanying PowerPoint Presentation

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