Residual strength of a steel-concrete composite structure subjected to a design seismic event by fire

Nogueiro, Pedro; Santiago, Aldina; Silva, Luís Simões; Bento, Rita; Vila Real, Paulo M.M.

http://hdl.handle.net/10198/4977

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Authors

Vila Real, Paulo M.M.

Abstract(s)

This paper presents a numerical investigation of the residual strength of a typical PR momentresistant multi-storey steel framed structure, subjected to a design seismic event followed by fire. In order to allow a calibration with some real results from fire tests on a natural scale, the architectural and structural definitions of the eight-storey steel Cardington building were chosen as the reference case, adapted to deal with basic seismic requirements. The seismic action was simulated with an artificial accelerogram with PGA of 0.6g, chosen to achieve significant energy dissipation in the joints. The adopted fire event is limited to an isolated compartment and it is defined as the natural fire observed during a full-scale fire test carried out at the BRE. Finally, the results are discussed in terms of robustness requirements for extreme events.

Keywords

Earthquake Fire Connections Steel structures

URI

http://hdl.handle.net/10198/4977

Citation

Nogueiro, Pedro; Santiago, Aldina; Simões da Silva, Luís; Bento, Rita; Vila Real, Paulo (2005). Residual strength of a steel-concrete composite structure subjected to a design seismic event by fire. In IABSE SYMPOSIUM. LISBON.