Analytical study on high strength concrete filled steel Tubular columns subjected to iso-834 standard fire

International Journal of Civil Engineering

© 2014 by SSRG - IJCE Journal

Volume 1 Issue 1

Year of Publication : 2014

Authors : M. Lingaeswari, Mr. N. Saravana Kumar

10.14445/23488352/IJCE-V1I1P104

How to Cite?

M. Lingaeswari, Mr. N. Saravana Kumar, "Analytical study on high strength concrete filled steel Tubular columns subjected to iso-834 standard fire," SSRG International Journal of Civil Engineering, vol. 1,  no. 1, pp. 15-19, 2014. Crossref, https://doi.org/10.14445/23488352/IJCE-V1I1P104

Abstract:

Concrete filled steel tubular columns have been extensively used in modern construction owing to that they utilise the most favourable properties of both constituent materials. The present study is a theoretical investigation on the fire performance of concrete filled steel tubular (CFST) columns under constant axial load. A 3-D finite element analysis model is developed to carry out both the numerical heat transfer and non-linear stress analysis and to predict the load versus deformation relationships of CFST columns subjected to a combination of temperature and axial compression. The structural responses of the columns, including critical temperature and fire-resisting time, are obtained for the ISO-834 standard fire. A parametric study is performed to investigate the behaviour and strength of CFST circular columns, viz., column dimensions, steel strength, concrete strength, etc. The temperature distribution, critical temperature and fire exposing time are extracted by using finite element package ABAQUS.

Keywords:

Heat transfer analysis, non-linear stress analysis, FEA model, Concrete filled steel tubular column, ISO-834 standard fire, Abaqus.

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