Displacement-Based Simplified Seismic Loss Assessment of Steel Buildings

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ABSTRACT

Evaluating losses consequent to damages induced by earthquakes has become one main paradigm in seismic performance assessment. Within this context, this paper explores a simplified seismic loss assessment methodology for steel structures that utilises displacement-based assessment in place of non-linear dynamic analyses. To this end, two case studies have been considered: (i) an archetype existing single-storey non-residential building, (ii) a prototype new multi-story residential building. Comparing results obtained using the fully probabilistic and the simplified displacement-based assessment methodologies allows the benefits of the simplified method to be highlighted. Possible difficulties encountered in applying the simplified method are also identified.

KEYWORDS:

• Analysis
• earthquake
• loss
• model
• steel

Acknowledgments

The research for this paper was undertaken through the support of the RELUIS-DPC 2014–2018 project, funded by the Italian Department for Civil Protection. Support from the University of Pavia to the last two authors is also gratefully acknowledged.