10.6084/M9.FIGSHARE.22223968.V1
Akshay Baheti
Akshay
Baheti
David Lange
David
Lange
Vasant Matsagar
Vasant
Matsagar
University of Melbourne
A study to determine suitable and robust intensity measures for reinforced concrete slab subjected to fire
<p>Performance-based structural design is still in a comparatively developmental phase for fire hazard when compared to that of, for example, earthquake excitation. Addressing a significant weakness in performance-based design for fire, the present study aims to propose appropriate intensity measures (IM) for a fire hazard that has a robust correlation with certain engineering demand parameter (EDP) and which may subsequently be linked to the damage / loss estimation a priori, in a structure subjected to a fire event. In this context, 12 plausible variables are identified for consideration as IMs for the EDPs of maximum deflection and maximum rate of deflection in an isolated simply supported reinforced concrete (RC) slab element. A correlation matrix is established based on the outcome from detailed nonlinear analyses of an RC slab subject to various fire profiles from the literature. Based on the important traits that a certain IM should possess as suggested in previous studies, maximum rebar temperature and maximum net heat flux are recommended as suitable IMs for the respective EDPs. The robustness of both the correlations is established by performing sensitivity analysis for changes in material and geometric properties of the RC slab element.</p>
Fire safety engineering
Structural engineering
figshare
2023
2023-03-07
2023-03-07
Conference contribution
542661 Bytes
10.6084/m9.figshare.22223968
CC BY 4.0