Abstract
This paper presents preliminary findings based on the performance of various steel structures during the Darfield earthquake of September 4, 2010, including concentrically braced frames, eccentrically braced frames, steel tanks, and steel houses. With a few exceptions, steel structures performed well during this earthquake, but much of this is attributed to the fact that seismic demands from the Darfield earthquake were generally lower than considered in their design.
Highlights
Many different interpretations of disaster resilience have been proposed in the literature
In one such concept, which has found broad acceptance, disaster resilience has been described as being a function of 4 R‟s, namely the robustness and redundancy of the infrastructure in its ability to limit damage, and rapidity and resourcefulness in returning the affected area to its pre-disaster condition [1]
The Darfield earthquake showed that robustness of the infrastructure is a cornerstone in achieving disaster resilience – that a high resilience level can be achieved by a society when the extent of structural damage is limited
Summary
This paper presents preliminary findings based on the performance of various steel structures during the Darfield earthquake of September 4, 2010, including concentrically braced frames, eccentrically braced frames, steel tanks, and steel houses. Steel structures performed well during this earthquake, but much of this is attributed to the fact that seismic demands from the Darfield earthquake were generally lower than considered in their design
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