Effect of earthquake damage on the behaviour of composite steel frames in fire

Riza Suwondo*, Martin Gillie, Lee Cunningham, Colin Bailey

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

8 Citations (Scopus)
16 Downloads (Pure)

Abstract

Fire loading following earthquake loading is possible in any building in a seismic-prone area. However, most design approaches do not consider fire following earthquake as a specific loading case. Moreover, seismic design philosophies allow a certain degree of damage in structural elements which make structures more vulnerable when subjected to post-earthquake fire. This study uses three-dimensional numerical models to investigate the effect of earthquake damage on the fire resistance of composite steel-frame office buildings. A total of two types of earthquake damage, fire insulation delamination and residual lateral frame deformation, are investigated. It is concluded that earthquake damage can significantly reduce the fire resistance of composite buildings, with delamination of fire protection having the greatest effect. The results of this study can be used by designers to improve the post-earthquake fire resistance of composite buildings.

Original languageEnglish
Pages (from-to)2589-2604
Number of pages16
JournalAdvances in Structural Engineering
Volume21
Issue number16
Early online date12 Mar 2018
DOIs
Publication statusPublished - 1 Dec 2018
Externally publishedYes

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