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Advisor(s)
Abstract(s)
Wood is a natural and traditional building material, as popular today as ever, and presents
advantages. Physically, wood is strong and stiff, but compared with other materiais like steel
is light and flexible. Wood material can absorb sound very effectively and it is a relatively good
heat insulator. But dry wood does bum quite easily md produces a great deal ofheat energy.
The main disadvantage is the high levei ofcombustion when exposed to fíre, where the point
at which it catches fire is fi-om 200-400°C. After fu-e exposure, is need to determine if the
charred wooden stmctures are safe for future use. Design methods require the use ofcomputer
modelling to predict the fíre exposure and the capacity ofstructures to resist fhose action. Also,
large or small scale experimental tests are necessary to calibrate and verify the numerical
models. The thermal model is essential for wood stmctures exposed to fire, because predicts
the charring rate as a fünction offire exposure. The charring rate calculation ofmost stmctural
wood elements allows simple calculations, but is more complicated for situations where the
fire exposure is non-standard and in wood elements protected with other materiais.
Description
Keywords
Wood Fire Charring rate Insulation
Citation
Haddad, Djaafer; Fonseca, E.M.M.; Lamri, Belkacem (2016). Thermal model for charring rate calculation in wooden cellular slabs under fire. In 7th International Conference on Safety and Durability of Structures ICOSADOS 2016. Vila Real. ISBN 978-989-20-6676-9