Structural evaluation of selected reinforced concrete buildings within the scope of urban renewal in Izmir province

In this study, 160 reinforced concrete buildings located in Izmir, with different numbers of floors and construction years, within the scope of urban renewal between 2013 and 2018, were examined, and their risk status was determined according to the Principles for Identification of Risky Buildings 2013 (RYTEIE 2013). Reinforced concrete buildings were evaluated in detail considering characteristic properties such as concrete compressive strengths, column longitudinal reinforcement ratios, floor weights, ratio of column sectional areas to floor areas, natural vibration periods, ratio of column axial stresses to existing concrete compressive strength, and failure ratios. The structures examined within the scope of the paper were also grouped into two main categories: before and after 1998. In addition, all these buildings were evaluated in terms of Life Safety (LS) performance level with the linear elastic calculation method given in Specification for Structures to be Built in Disaster Areas 2007 (DBYBHY 2007), which was also in force between 2013 and 2018. It is observed that 72% of reinforced concrete buildings were determined as risky buildings according to RYTEIE 2013 and couldn’t provide the LS performance level according to DBYBHY 2007.