Published: Građevinar 64 (2012) 1
Paper type: Original scientific paper
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Numerical model for determining fire behaviour of structures
Abstract
A numerical model and computer program for predicting behaviour of structures subjected to fire action are presented in the paper. The nonlinear numerical procedure is conducted in pre-defined time increments. At that, the distribution of temperature is calculated in each increment and, depending on this calculation, material properties and stiffness of the element are corrected, and the static problem is resolved. The efficiency and accuracy of the model and computer program are presented on an example of a simply supported beam.
Keywordsnonlinear analysis, steel, numerical model, fire load, heat transfer