Abstract
This study aims at investigating heat propagations inside the structural members due to fire using fire simulation and transient heat transfer analysis. Toward that goal, fire simulation and transient heat transfer analysis for a 5-story building are carried out sequentially using Fire Dynamics Simulator (FDS) and ABAQUS 6.10-3, respectively. As results from fire simulation, temporal temperature information is obtained depending on various locations of the building, which is used as boundary condition for the structural elements generated in transient heat transfer analysis. Predictions from the transient heat transfer analysis show that the structural members are exposed spatially non-uniform temperatures which can cause significant eccentric deformation and aceleration of structural damages.
Highlights
Even though concrete is well known as thermal resistant material, concrete structures exposed to severe fire accident show significant degradation of structural capacities and lead to building collapse
This paper aims at evaluating safety of structural members of office rooms based on fire simulation and transient heat transfer analysis
There is no significant difference of time-temperature curves due to fire growth phase
Summary
Even though concrete is well known as thermal resistant material, concrete structures exposed to severe fire accident show significant degradation of structural capacities and lead to building collapse. Since performing experiments for safety evaluation of fire damaged structures requires huge cost and time, there is a need for quantitative modeling approaches that can evaluate structural safety based on accurate predictions of fire and heat propagations. Fire simulation tools such as CFAST, JASMINE, SOFIE, FiRECAM and FDS, have developed by research laboratories and academic institutions in many counties. The FDS numerical solution can be carried out using either a Direct Numerical Simulation (DNS) method or Large Eddy Simulation (LES) The latter is not severely limited in grid
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