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  • CFST_with_preload_exp_final

    Rights statement: This is the author’s version of a work that was accepted for publication in Composite Structures. Changes resulting from the publishing process, such as peer review, editing, corrections, structural formatting, and other quality control mechanisms may not be reflected in this document. Changes may have been made to this work since it was submitted for publication. A definitive version was subsequently published in Composite Structures, 223, 2019 DOI: 10.1016/j.compstruct.2019.110994

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    Embargo ends: 15/05/20

    Available under license: CC BY-NC-ND

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Fire resistance of concrete-filled steel tube columns with preload.: Part I: Experimental investigation

Research output: Contribution to journalJournal article

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  • M. Yu
  • T. Wang
  • W. Huang
  • H. Yuan
  • J. Ye
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Article number110994
<mark>Journal publication date</mark>1/09/2019
<mark>Journal</mark>Composite Structures
Volume223
Publication statusPublished
Early online date15/05/19
Original languageEnglish

Abstract

Preload in a cast-in-situ concrete-filled steel tube (CFST) structure is an important parameter that has been studied and considered in design and construction. However, the impact of a preload on fire resistance of CFST has not been taken into account in the existing design method of CFST under fire. In this paper, twelve CFST columns with and without preload in the steel tubes are experimentally studied to investigate their heating process, failure modes, thermal and structural responses. The test results show that preload of the steel tube has significant impact on the fire resistance of some of the columns. Further investigations on this important observation will be done numerically in a companion paper [24] to carry out a more comprehensive parametric study.

Bibliographic note

This is the author’s version of a work that was accepted for publication in Composite Structures. Changes resulting from the publishing process, such as peer review, editing, corrections, structural formatting, and other quality control mechanisms may not be reflected in this document. Changes may have been made to this work since it was submitted for publication. A definitive version was subsequently published in Composite Structures, 223, 2019 DOI: 10.1016/j.compstruct.2019.110994