Fire Dynamics Simulation Of Concrete Beams Subjected To Channel Fires
Abstract
This study aims to develop a fire dynamics simulation (FDS) in a Pyrosim software platform for concrete beams subjected to natural gas fueled channel fires with controllable burners. The measured heat release rate was input as the fire load to the concrete beams. The air temperatures in the channel and inside concrete temperatures captured in the FDS are validated by the experimental results. It was found that the FDS and experimental differences in the maximum or average air temperatures are within 20% when the concrete beams loaded at a constant heat release rate. The inside concrete temperature close to the fire source is satisfactorily predicted by the one-dimensional heat conduction superposition from different concrete beam surfaces, and the predicted concrete temperatures bounded the experimental ones. With the validated FDS, a parametric analysis has been conducted to numerically clarify the impact of the side hole area, concrete thermal conductivity, specific heat and wind gust on the fire dynamics and concrete temperatures. The present study is developing a numerical technique to capture fire response of engineering structures.
Recommended Citation
Y. Zhu et al., "Fire Dynamics Simulation Of Concrete Beams Subjected To Channel Fires," Computers and Concrete, vol. 38, no. 1, pp. 87 - 110, Techno-Press, Jul 2026.
The definitive version is available at https://doi.org/10.12989/cac.2026.38.1.087
Department(s)
Civil, Architectural and Environmental Engineering
Keywords and Phrases
air temperature; concrete beams; fire; fire dynamics simulation (FDS); one-dimensional heat conduction
International Standard Serial Number (ISSN)
1598-818X; 1598-8198
Document Type
Article - Journal
Document Version
Citation
File Type
text
Language(s)
English
Rights
© 2026 Techno Press, All rights reserved.
Publication Date
01 Jul 2026
Comments
Office of the Assistant Secretary for Research and Technology, Grant 00059709