Post-fire residual capacity of protected and unprotected concrete filled steel hollow columns.

David Rush, Luke Bisby, Allan Jowsey

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

Concrete filled steel hollow structural (CFS) sections are an increasingly popular means to support large compressive loads in buildings. Whilst the response of unprotected CFS sections during a fire is reasonably well researched, their post-fire residual structural performance is less well established. The results of 19 post-fire residual eccentric axial compression tests on unprotected and protected CFS columns is presented, along with six unheated control tests. The tests confirm that as the maximum exposed temperature within the cross-section increases, the residual strength capacity, ductility and axial-flexural stiffness decrease. The data presented herein can be used to assess the ability to predict the residual capacity of CFS columns after fires using available post-fire structural and material models.
Original languageEnglish
Title of host publication8th International Conference on Structures in Fire
Place of PublicationShanghai
PublisherTongji University Press
Pages435-442
Volume1
ISBN (Print)978-7-5608-5494-6
Publication statusPublished - 1 Jun 2014
Event8th International Conference on Structures in Fire (SiF 14) - Shanghai, China
Duration: 11 Jun 201413 Jun 2014

Conference

Conference8th International Conference on Structures in Fire (SiF 14)
CountryChina
CityShanghai
Period11/06/1413/06/14

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