Performance-based structural fire design and testing of structures

Chan, S.L. & Iu, C.K. (2012) Performance-based structural fire design and testing of structures. In Chan, S.L. (Ed.) Proceedings of Annual Seminar of Joint Structural Division, Hong Kong Institution of Engineers, Hong Kong, pp. 1-20.


Fire incident in buildings is common in Hong Kong and this could lead to heavy casualties due to its high population density, so the fire safety design of the framed structure is an important research topic. This paper describes a computer tool for determination of capacity of structural safety against various fire scenarios and the well-accepted second-order direct plastic analysis is adopted for simulation of material yielding and buckling. A computer method is developed to predict structural behaviour of bare steel framed structures at elevated temperatures but the work can be applied to structures made of other materials. These effects of thermal expansion and material degradation due to heating are required to be considered in order to capture the actual behavior of the structure under fire. Degradation of material strength with increasing temperature is included by a set of temperature-stress-strain curves according to BS5950 Part 8 mainly, which implicitly allows for creep deformation. Several numerical and experimental verifications of framed structures are presented and compared against solutions by other researchers. The proposed method allows us to adopt the truly performance-based structural fire analysis and design with significant saving in cost and time.

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ID Code: 70951
Item Type: Conference Paper
Refereed: No
Additional URLs:
Keywords: fire analysis, finite element method, steel structures, nonlinear analysis
Subjects: Australian and New Zealand Standard Research Classification > ENGINEERING (090000) > CIVIL ENGINEERING (090500) > Structural Engineering (090506)
Divisions: Current > Schools > School of Civil Engineering & Built Environment
Current > QUT Faculties and Divisions > Science & Engineering Faculty
Copyright Owner: Copyright 2012 [please consult the author]
Deposited On: 05 May 2014 01:34
Last Modified: 11 May 2014 19:09

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