Calculating the Fire Resistance of Exposed Wood Members

https://research.thinkwood.com/en/permalink/catalogue220
Year of Publication
2015
Topic
Fire
Material
CLT (Cross-Laminated Timber)
Organization
American Wood Council
Year of Publication
2015
Country of Publication
United States
Format
Report
Material
CLT (Cross-Laminated Timber)
Topic
Fire
Keywords
Charring
Codes
Standards
Language
English
Research Status
Complete
Summary
The superior fire performance of timber can be attributed to the charring effect of wood. As wood members are exposed to fire, an insulating char layer is formed that protects the core of the section. Thus, beams and columns can be designed so that a sufficient cross section of wood remains to sustain the design loads for the required duration of fire exposure. A standard fire exposure is used for design purposes. In North America, this exposure is described in the standard fire resistance test ASTM E 119 [2]. Many other countries use a comparable test exposure found in ISO 834 [3]. In spite of the difference between standard dire resistance tests, experimental charring rates measured in various parts of the world appear to be consistent. This justifies the use of such data for design, regardless of origin.
Copyright
Courtesy, American Wood Council, Leesburg, VA
Online Access
Free
Resource Link
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