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Burnout resistance of concrete‐filled steel tubular (CFST) columns under realistic fire conditions by Wojciech Szymkuc; Michal Malendowski; Adam Glema is a Engineering article available to read on EtoBox.

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## Abstract In this paper, we investigate the structural behaviour of concrete‐filled steel tubular (CFST) columns under various fires. Our contribution is based on two fire scenarios in modelled FDS with subsequent 3D FE numerical analysis (Abaqus), where material properties are defined for heating and cooling using user subroutines. Our goal is to examine the burnout resistance of CFST columns under different realistic fire scenarios involving varying number of burning cars. The loss of compressive strength of concrete due to high temperature is irreversible. Hence, the burnout resistance is affected by the field of the highest temperatures reached inside the column. Moreover, the pre‐existing load affects the deformation of the column during heating and influences the post‐fire behaviour. The analysis is performed in several steps: first, results from the CFD models are extracted and appropriately mapped, then the heat transfer analysis between fire and solid is performed, and the resulting temperature history of the CFST column is calculated. Subsequently, a mechanical analysis is performed, where (1) the column is loaded, (2) the analysis of the column's structural fire behavi

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Author

Wojciech Szymkuc; Michal Malendowski; Adam Glema

Publisher

Wiley

Published

2023

Language

EN

Field

Engineering (Physical Sciences)