Post-Earthquake Residual Capacity of Damaged Reinforced Concrete Buildings

Abstract eng:
Many buildings experience intermediate levels of damage during seismic events. In these situations, a detailed assessment of the building in its damaged state is required for owners and other stakeholders to make informed decisions about the building’s future. The aftermath of the Canterbury earthquakes of 2010-2011 brought into sharp attention the lack of available resources for engineers conducting detailed assessments of damaged buildings. In this paper, a proposed framework for the post-earthquake assessment of damaged reinforced concrete buildings is presented. Within the bounds of this framework, the need for models estimating the residual strength, stiffness, and deformability of damaged reinforced concrete components is also discussed. Preliminary results are presented from an experimental program evaluating the residual capacity of damaged and repaired reinforced concrete beams. This work is part of an effort funded by the New Zealand Government to develop guidelines for assessing the post-earthquake residual capacity of damaged structures.

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