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Fire responses and resistance of concrete-filled steel tubular frame structures

Yu, M., Zha, X., Ye, J. and Li, Y. (2010) Fire responses and resistance of concrete-filled steel tubular frame structures. International Journal of Structural Stability and Dynamics, 10 (2). pp. 253-271. ISSN 1793-6764

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Abstract

This paper presents the results of dynamic responses and fire resistance of concretefilled steel tubular (CFST) frame structures in fire conditions by using non-linear finite element method. Both strength and stability criteria are considered in the collapse analysis. The frame structures are constructed with circular CFST columns and steel beams of I-sections. In order to validate the finite element solutions, the numerical results are compared with those from a fire resistance test on CFST columns. The finite element model is then adopted to simulate the behaviour of frame structures in fire. The structural responses of the frames, including critical temperature and fire-resisting limit time, are obtained for the ISO-834 standard fire. Parametric studies are carried out to show their influence on the load capacity of the frame structures in fire. Suggestions and recommendations are presented for possible adoption in future construction and design of these structures.

Item Type: Article
Copyright, Publisher and Additional Information: This is an author produced version of a paper accepted for publication in International Journal of Structural Stability and Dynamics. Uploaded in accordance with the publisher's self-archiving policy.
Keywords: Column, concrete-filled steel tube, frame, fire resistance, strength and stability under fire condition, finite element method.
Institution: The University of Leeds
Academic Units: The University of Leeds > Faculty of Engineering (Leeds) > School of Civil Engineering (Leeds)
Depositing User: Miss Elizabeth Winning
Date Deposited: 02 Jun 2009 17:14
Last Modified: 08 Feb 2013 17:06
Published Version: http://dx.doi.org/10.1142/S0219455410003452
Status: Published
Publisher: World Scientific
Refereed: Yes
Identification Number: 10.1142/S0219455410003452
URI: http://eprints.whiterose.ac.uk/id/eprint/8636

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