Effect of earthquake damage on the behaviour of composite steel frames in fire. Issue 16 (December 2018)

• Record Type: Journal Article
• Authors: Suwondo, Riza; Gillie, Martin; Cunningham, Lee; Bailey, Colin
• Other Names: Sadowski Adam J guest-editor.; Chen Jian-Fei guest-editor.; Teng Jin-Guang guest-editor.
• Is Part Of: Advances in structural engineering. Volume 21:Issue 16(2018)
• Page Start: 2589
• Page End: 2604
• Publication Date: 2018-12
• Subjects: composite construction -- earthquake engineering -- fire engineering -- fire following earthquake -- fire insulation; Structural engineering -- Periodicals; Construction, Technique de la; Structural engineering; Periodicals; 624.1
• DOI: 10.1177/1369433218761138
• Languages: English
• ISSNs: 1369-4332

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.