Fire Safety In Perforated Wooden Slabs:
A Numerical Approach
Author(s)
E. M. M. Fonseca1, D. Couto2 & P. A. G. Piloto1
Abstract
The main goal of this work is to present a numerical model to assess the fire
safety of wooden slabs with rectangular perforations on a ceiling. These typical
constructions have good sound absorption, heat insulation and relevant
architectonic characteristics. They are used in many civil applications: concert
and conference halls, classrooms, nurseries, airports, hotels, shopping,
universities, and many other public buildings. These panels are normally
installed at a lower level in building constructions to facilitate essential
maintenance. Depending on the installation requirement, the perforated wooden
slabs could have insulation material inside the cavities. In this work the proposed
numerical model could be used for different design constructive solutions. In
order to guarantee the fire rating in a typical used perforated wooden slab, a
transient thermal analysis with nonlinear material behaviour will be solved using
ANSYS program. This study allows for verifying the evolution of the
temperature and the char-layer throughout a wooden slab with different
rectangular perforations and considering the insulation effect inside the cavities.
The developed numerical model allows future studies and simultaneously
characterizes the effect of rectangular perforations in wooden slabs to minimize
the fire risk. The numerical model can easily be adjusted for other constructive
solutions, to facilitate fire safety validation, in buildings with several wooden
slab assemblies used in floors or in ceiling applications.
Keywords: perforated wooden slab, fire, numerical study.
Keywords
perforated wooden slab, fire, numerical study
Related Book
Other papers in this volume
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