Remaining fire resistance of steel frames following a moderate earthquake – A case study

Mian Zhou, Liming Jiang, Suwen Chen, Rui P.R. Cardoso, Asif Usmani

Research output: Journal article publicationJournal articleAcademic researchpeer-review

7 Citations (Scopus)

Abstract

Post-earthquake damage in cementitious passive fire protection (PFP) systems is a serious fire safety hazard in steel frame structures, because it is unaccounted for at the design stage. This is of greatest concern after small to moderate earthquakes as modern structural components are designed to resist them with no damage. However, PFP systems are not currently subjected to any design regulations for seismic loading and therefore their performance cannot be quantified. Additionally, the inaccessibility of cementitious coatings hampers the evaluation of their remaining fire resistance capacity following earthquakes by means of visual inspections. This paper proposes an integrated multi-hazard framework using finite element analysis (FEA) for assessing the remaining fire resistance capacity of PFP protected steel frame structures subjected to moderate earthquakes. This multi-hazard framework is presented in the open source software environment OpenSEES, and provides structural engineers with a practical solution to access the fire safety concern associated with the PFP damage.

Original languageEnglish
Article number105754
JournalJournal of Constructional Steel Research
Volume164
DOIs
Publication statusPublished - Jan 2020

Keywords

  • Cementitious passive fire protection
  • Multi-hazard response of structures
  • OpenSEES
  • Remaining fire resistance

ASJC Scopus subject areas

  • Civil and Structural Engineering
  • Building and Construction
  • Mechanics of Materials
  • Metals and Alloys

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