Investigation of the fragility of a damaged mid-rise reinforced concrete building

Abstract

An important part of existing building stock in Turkey is composed of middle-height reinforced concrete structures that had been exposed to earthquakes but still in use. Determination of damaged buildings' structural performance exposed again to an earthquake is very important for a successful earthquake disaster and risk management. In this study, damage probabilities of damaged and non -damaged reinforced concrete buildings are evaluated. In this context, a moderately damaged middle-height reinforced concrete structure is selected. Structural three-dimensional models for damaged and non-damaged cases are prepared and nonlinear pushover analyses are performed. Fragility curves of both cases are obtained using drift ratios. As a result, possible damage ratios are obtained and evaluated for disaster management.