Analysis method of structure temperature field under non-standard fire

Abstract

Abstract: A temperature field conversion method based on FDS fire model and COMSOL structural mechanics model is proposed, and the corresponding software is written by MATLAB to realize the method, and then the heat transfer analysis of building components is realized. Taking rectangular concrete sheet as an example,the method is used to numerically simulate it. The calculation results show that the temperature field change of the model in FDS is consistent with that in COMSOL. By comparing the measured temperature of the two models, the maximum error is 6.8%. The method can be used to study the influence of temperature in actual fire on the mechanical properties of building structures, and provides a thermal coupling method for improving building toughness.

Key words: fire, temperature field;heat transfer, numerical simulation, building structure

LIANG Tian-shui, LI Ya-pei, ZHAO Jun. Analysis method of structure temperature field under non-standard fire[J]. Fire Science and Technology, 2020, 39(1): 17-20.

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Analysis method of structure temperature field under non-standard fire

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